How to Choose the Surface Treatment Process for Fasteners

  Choosing which surface treatment to use is a problem that every designer faces. There are many types of surface treatments to choose from, and not only should the economy and practicality of the design be considered, but also the processability of the assembly and even environmental protection requirements should be taken into consideration. The following is a brief introduction to some commonly used coatings for fasteners based on the above principles for reference.By comparison, it can be seen that non standard fasteners It has certain advantages and great cost performance. https://jieruifasteners.com/

  

  1. Electrogalvanizing

  

  Electrogalvanizing is the most commonly used coating for commercial fasteners. It is relatively cheap and looks good. Common colors include black and military green. However, its anti-corrosion performance is average, and its anti-corrosion performance is the lowest among zinc plating (coating) layers. Generally, the neutral salt spray test of electrogalvanizing is within 72 hours. Special sealants are also used to make the neutral salt spray test reach more than 200 hours, but the price is expensive, which is 5 to 8 times that of general galvanizing. The torque-preload consistency of electrogalvanized fasteners is poor and unstable, and is generally not used for connections in important parts. In order to improve the torque-preload consistency, the method of applying lubricating substances after plating can also be used to improve and improve the torque-preload consistency.

  

  2. Phosphating

  

  A basic principle Phosphating is cheaper than galvanizing, but its corrosion resistance is worse than galvanizing. Oil should be applied after phosphating, and its corrosion resistance is greatly related to the performance of the oil applied. For example, after phosphating, applying general anti-rust oil, the neutral salt spray test is only 10 to 20 hours. Applying high-grade anti-rust oil can last for 72 to 96 hours. But its price is 2 to 3 times that of general phosphating oiling.

  

  There are two common types of non-standard fasteners phosphating, zinc phosphating and manganese phosphating. Zinc phosphating has better lubrication performance than manganese phosphating, and manganese phosphating has better corrosion resistance and wear resistance than galvanizing. Its operating temperature can reach 225 degrees to 400 degrees Fahrenheit (107 to 204 degrees Celsius). Especially for the connection of some important parts. Such as the connecting rod bolts and nuts of the engine, cylinder heads, main bearings, flywheel bolts and wheel bolts and nuts. Phosphating high-strength bolts can also avoid hydrogen embrittlement problems, so in the industrial field, bolts above grade 10.9 are generally treated with phosphating surface treatment.

  

  

  3. Oxidation blackening

  

  Blackening + oiling is a very popular coating for industrial fasteners because it is the cheapest and looks good before the oil runs out. Since blackening has almost no anti-rust ability, it will rust quickly after oiling. Even in the presence of oil, the neutral salt spray test can only reach 3 to 5 hours.

  

  4. Electroplating cadmium

  

  Cadmium coating has good corrosion resistance, especially in marine atmospheric environment, its corrosion resistance is better than other surface treatments. The waste liquid treatment cost in the process of electroplating cadmium is high, and its price is about 15~20 times that of electroplating zinc. Therefore, it is not used in general industries and is only used in some specific environments. For example, it is used for non-standard fasteners for oil drilling platforms and HNA aircraft.

What Are the Benefits of Cold Heading of Screws

  In the fastener forming process, cold heading (extrusion) technology is a main processing technology, which belongs to the category of metal pressure processing. In production, at room temperature, external force is applied to the metal to form the metal in a predetermined mold. This method is usually called cold heading. In fact, the forming of any fastener is not only achieved by cold heading. In the cold heading process, in addition to upsetting deformation, it is also accompanied by positive and negative extrusion, compound extrusion, punching, rolling and other deformation methods. Therefore, the name of cold heading in production is just a habitual name. To be more precise, it should be called cold heading (extrusion).for a long time non standard fasteners It has an extraordinary development speed, and I believe that the future will be as overwhelming as ever. https://jieruifasteners.com/

  

  

  Cold heading (extrusion) has many advantages, and it is suitable for mass production of fasteners. Its advantages can be summarized as follows:

  

  1. High steel utilization rate. Cold heading (extrusion) is a method with little or no cutting. For example, when processing hexagonal bolts and cylindrical socket screws of rods, the steel utilization rate is only 25% to 35% by cutting, while the utilization rate can be as high as 85% to 95% by cold heading (extrusion), which is only some process consumption of the head, tail and hexagonal head edge.

  

  High productivity. Compared with general cutting, the efficiency of cold heading (extrusion) is more than dozens of times higher.

  

  2. Good mechanical properties. The strength of parts processed by cold heading (extrusion) method is much better than that of cutting because the metal fibers are not cut.

  

  3. Suitable for automated production. Fasteners (including some special-shaped parts) suitable for cold heading (extrusion) method are basically symmetrical parts, suitable for production by high-speed automatic cold heading machine, and are also the main method of mass production.

  

  In short, the cold heading (extrusion) method for processing fasteners and special-shaped parts is a processing method with a relatively high comprehensive economic benefit. It is a processing method commonly used in the fastener industry. It is also an advanced processing method that is widely used and developed at home and abroad.

  

  At room temperature, the blank is placed in the mold of an automatic cold heading machine or a press, and pressure is applied to the mold. The relative movement of the upper and lower molds is used to deform the blank in the mold cavity, reduce the height, and increase the cross-section. This pressure processing method is called cold heading for automatic cold heading machines and cold pressing for presses. In actual production, the cold forming process of fasteners is often accompanied by extrusion during the cold heading process. Therefore, the cold heading process of fastener products alone is actually a composite processing method that has both cold heading and extrusion.

What Are the Methods to Prevent Loosening of Anti-loosening Nuts

  Anti-loosening nut is a nut, which is a part that is screwed together with a bolt or a screw for tightening. It is an original part required by all production and processing equipment. Anti-loosening non standard nut is a part that tightly connects mechanical equipment together. With the help of the inner thread, anti-loosening nuts and screws of the same specifications can be connected together. The following is a detailed introduction to several methods of preventing anti-loosening nuts from slipping.from non standard fasteners Looking at the development prospects, the future will always bring positive effects. https://jieruifasteners.com/

  

  1. Anti-loosening of equipment

  

  It is to use the locking nut stopper to directly limit the relative rotation of the locking nut pair. For example, the use of tooth pins, serial wires and stop washers. Because the locking nut stopper does not have a pre-tightening force, the anti-loosening stopper can only work when the locking nut is loose and returned to the stop position. Therefore, the locking nut method does not actually prevent loosening but prevents falling.

  

  2. Riveting and anti-loosening

  

  After tightening, use punching, welding, bonding and other methods to make the locking nut pair lose the performance of the kinematic pair and the connection becomes an irremovable connection. The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the bolt pair needs to be damaged before it can be disassembled.

  

  3. Friction anti-loosening

  

  It is the most widely used anti-loosening method. This method forms a positive pressure between the locking nut pairs that does not change with the external force, so as to form a friction force that can prevent the relative rotation of the locking nut pairs. This positive pressure can be achieved by axially or simultaneously pressing the locking nut pairs in two directions. For example, elastic washers, double nuts, self-locking nuts and insert locking nuts are used.

  

  

  4. Structural anti-loosening

  

  It is to apply the locking nut pair’s own structure, that is, the Tang’s locking nut anti-loosening method.

  

  

  5. Punching edge anti-loosening

  

  After the nut is tightened, the thread is destroyed by punching the end of the thread; bonding anti-loosening generally uses anaerobic adhesive to apply to the thread screw surface. After tightening the anti-loosening nut, the adhesive can solidify by itself, and the actual anti-loosening effect is better. The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the bolt pair needs to be destroyed before it can be disassembled.

How Compostable Aprons Contribute to a Zero-Waste Lifestyle?

  In the quest for sustainability, every small change counts. One such change that can make a significant impact is the shift from traditional aprons to compostable aprons. These eco-friendly alternatives not only help reduce waste but also align perfectly with the principles of a zero-waste lifestyle. In this article, we will explore how compostable aprons contribute to a zero-waste lifestyle and why they are a smart choice for both individuals and businesses. We’ll also delve into the benefits of biodegradable aprons and the advantages of purchasing wholesale compostable aprons.beyond doubt recycle trash bags It will definitely lead the development direction of the whole industry and let its light bloom in this field. https://biodegradable-gd.com

  

  1. Compostable and Biodegradable Aprons

  

  Compostable aprons are made from materials that break down naturally and return to the earth without leaving harmful residues. Unlike traditional plastic or synthetic aprons, which can take hundreds of years to decompose, compostable aprons typically degrade within a few months under the right conditions. Biodegradable aprons share similar properties, but the key difference lies in the certification and conditions required for composting.

  

  By choosing compostable aprons, you’re supporting products designed to minimize environmental impact. These aprons are often made from plant-based materials such as cornstarch, PLA (polylactic acid), or other renewable resources. When disposed of in a composting facility, they decompose into natural elements, enriching the soil and reducing landfill waste.

  

  2. Reducing Landfill Waste

  

  One of the primary benefits of compostable aprons is their ability to reduce landfill waste. Traditional aprons, especially those made from synthetic materials, contribute significantly to the growing problem of waste accumulation. These materials do not break down easily and can remain in landfills for centuries. In contrast, compostable aprons decompose quickly and efficiently, significantly reducing the volume of waste that ends up in landfills.

  

  

  3. Supporting a Circular Economy

  

  The concept of a circular economy is centered around designing products that can be reused, repaired, and recycled, thus minimizing waste. Compostable aprons fit seamlessly into this model. After their useful life, they can be composted and turned into nutrient-rich soil, which can then be used to grow new plants. This creates a closed-loop system that benefits the environment and promotes sustainability.

  

  4. Lowering Carbon Footprint

  

  Compostable aprons generally have a lower carbon footprint compared to traditional aprons. The production of compostable materials often involves less energy and fewer greenhouse gas emissions. Additionally, composting organic waste, including compostable aprons, reduces methane emissions from landfills, a potent greenhouse gas contributing to climate change.

  

  5. Encouraging Sustainable Practices

  

  Adopting compostable aprons encourages sustainable practices both at home and in businesses. For individuals, using compostable aprons is a simple yet effective step toward reducing personal environmental impact. For businesses, especially those in the food and hospitality industry, switching to compostable aprons demonstrates a commitment to sustainability and can attract eco-conscious customers.

  

  

  6. Cost-Effective Solutions with Wholesale Compostable Aprons

  

  Purchasing wholesale compostable aprons can be a cost-effective solution for businesses looking to implement sustainable practices. Wholesale options often come at a lower price per unit, making it affordable to switch to eco-friendly alternatives. By buying in bulk, businesses can ensure a steady supply of compostable aprons, reducing the need for frequent reordering and further minimizing their carbon footprint through fewer shipments.

  

  7. Enhancing Brand Image and Customer Loyalty

  

  For businesses, using compostable aprons can enhance brand image and customer loyalty. Consumers today are increasingly aware of environmental issues and prefer to support businesses that take proactive steps toward sustainability. By offering compostable aprons, businesses can demonstrate their commitment to environmental responsibility, which can strengthen customer relationships and boost brand reputation.

  

  Incorporating compostable aprons into your lifestyle or business operations is a practical and impactful way to support a zero-waste lifestyle. These aprons help reduce landfill waste, support a circular economy, lower carbon footprints, and promote sustainable practices. For businesses, purchasing wholesale compostable aprons offers a cost-effective solution that can enhance brand image and customer loyalty. By making the switch to compostable aprons, you are taking a significant step towards a more sustainable future.Adopting compostable aprons is not just a trend; it’s a meaningful contribution to environmental preservation. Whether you’re an individual looking to reduce your ecological footprint or a business aiming to align with sustainable practices, compostable aprons are a simple yet powerful choice.

What Are the Methods to Prevent Loosening of Anti-loosening Nuts

  Anti-loosening nut is a nut, which is a part that is screwed together with a bolt or a screw for tightening. It is an original part required by all production and processing equipment. Anti-loosening non standard nut is a part that tightly connects mechanical equipment together. With the help of the inner thread, anti-loosening nuts and screws of the same specifications can be connected together. The following is a detailed introduction to several methods of preventing anti-loosening nuts from slipping.more importantly, non-standard fasteners price Made a fighter in the product, not afraid of any competitor’s attack. https://jieruifasteners.com/

  

  1. Anti-loosening of equipment

  

  It is to use the locking nut stopper to directly limit the relative rotation of the locking nut pair. For example, the use of tooth pins, serial wires and stop washers. Because the locking nut stopper does not have a pre-tightening force, the anti-loosening stopper can only work when the locking nut is loose and returned to the stop position. Therefore, the locking nut method does not actually prevent loosening but prevents falling.

  

  2. Riveting and anti-loosening

  

  After tightening, use punching, welding, bonding and other methods to make the locking nut pair lose the performance of the kinematic pair and the connection becomes an irremovable connection. The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the bolt pair needs to be damaged before it can be disassembled.

  

  3. Friction anti-loosening

  

  It is the most widely used anti-loosening method. This method forms a positive pressure between the locking nut pairs that does not change with the external force, so as to form a friction force that can prevent the relative rotation of the locking nut pairs. This positive pressure can be achieved by axially or simultaneously pressing the locking nut pairs in two directions. For example, elastic washers, double nuts, self-locking nuts and insert locking nuts are used.

  

  

  4. Structural anti-loosening

  

  It is to apply the locking nut pair’s own structure, that is, the Tang’s locking nut anti-loosening method.

  

  

  5. Punching edge anti-loosening

  

  After the nut is tightened, the thread is destroyed by punching the end of the thread; bonding anti-loosening generally uses anaerobic adhesive to apply to the thread screw surface. After tightening the anti-loosening nut, the adhesive can solidify by itself, and the actual anti-loosening effect is better. The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the bolt pair needs to be destroyed before it can be disassembled.

The Process of Customizing Non-standard Nuts

  Non-standard nuts have always been popular with users in the market. Because there is no fixed standard, non-standard nuts are customized according to customer needs and sizes. So what is the process of customizing non-standard nuts?know non-standard fasteners price Our growth has to go through many hardships, but entrepreneurs are never afraid and boldly move forward. https://jieruifasteners.com/

  

  1. First of all, before customizing non-standard nuts, you should think about which product the non-standard nuts will be used on and what effect they will achieve on the product. Will they be injected into the product or will they serve as a connection between two products?

  

  custom non standard nuts.jpg

  

  2. Secondly, the appearance of non-standard nuts and the specifications, sizes, and patterns of non-standard nuts should be designed according to the needs of the product. The material and surface treatment of non-standard nuts should be determined in combination with the product and its use environment. Materials such as copper, iron, stainless steel, alloy, etc. Surface treatment processes such as galvanizing iron nuts or degreasing stainless steel nuts.

  

  non standard fasteners.jpg

  

  3. The drawings of non-standard nuts are generally designed by the demander, and the specifications, sizes and requirements of each part of the non-standard screws are marked on the drawings. If there is no drawing. As long as the product for non-standard nuts is provided, or the requirements for non-standard nuts are provided, the manufacturer can also design non-standard screws according to the actual situation.

  

  nut mold supplier.jpg

  

  4. After the drawing is designed, proofs are made according to the size and specifications of the nut. If there are no problems with the sample production, mass production will be carried out according to the requirements of the nut.

Can Custom Silicone Parts Withstand Extreme Temperatures

  When selecting materials for various applications, especially those involving harsh environmental conditions, the ability of the material to withstand extreme temperatures is crucial. Custom silicone parts have become a popular choice due to their impressive temperature tolerance. In this article, we¨ll explore how custom silicone parts perform in extreme temperatures and why they are a preferred option in demanding applications.At the same time, silicone baby teether It is no longer a relatively unfamiliar industry, and it enters the public’s sight more and more frequently, gaining more attention and recognition. https://lxsiliconeparts.com/

  

  Temperature Tolerance of Silicone

  

  Silicone rubber is renowned for its ability to handle a wide range of temperatures. Typically, silicone parts can endure temperatures from -60<C (-76<F) to +230<C (+446<F). This makes silicone highly versatile, suitable for both freezing cold and intense heat. However, specific silicone formulations can extend these ranges even further.

  

  custom silicone parts

  

  Low-Temperature Performance

  

  At low temperatures, silicone maintains its flexibility and elasticity, unlike many other materials that become brittle and prone to cracking. This property is crucial for applications in cold environments, such as aerospace components, refrigeration seals, and outdoor equipment. The low-temperature resilience ensures that silicone parts will continue to function effectively even in freezing conditions.

  

  High-Temperature Performance

  

  Silicone¨s high-temperature resistance makes it ideal for applications that involve heat exposure, such as automotive engine parts, cooking appliances, and industrial machinery. Silicone¨s ability to withstand elevated temperatures without losing its mechanical properties or degrading over time ensures long-term performance and reliability in high-heat environments.

  

  Factors Affecting Temperature Resistance

  

  Silicone Formulation: The temperature resistance of silicone can vary depending on its formulation. Standard silicone typically handles temperatures up to +230<C (+446<F), but specialized high-temperature silicones can tolerate even higher temperatures.

  

  Additives and Fillers: Additives and fillers can enhance silicone¨s properties, including its temperature resistance. For instance, silicone compounds with added fillers may improve thermal stability and reduce the effects of extreme temperatures.

  

  Application Conditions: The actual performance of silicone parts in extreme temperatures also depends on the specific conditions of use, such as exposure duration, thermal cycling, and mechanical stress. Proper material selection and design considerations are essential to ensure optimal performance.

  

  custom silicone parts

  

  Applications of High-Temperature Silicone Parts

  

  Automotive Industry: Silicone seals and gaskets are used in engines, exhaust systems, and other high-heat areas to provide reliable sealing and performance under extreme temperatures.

  

  Aerospace Industry: Silicone components in aircraft and spacecraft must withstand temperature fluctuations during flight and re-entry, making silicone an ideal material due to its thermal stability.

  

  Electronics: Silicone encapsulants and insulators protect electronic components from heat and ensure reliable operation in high-temperature environments.

  

  Cooking Appliances: Silicone bakeware and kitchen tools are designed to endure high temperatures in ovens and dishwashers, ensuring durability and safety.

  

  Conclusion

  

  Custom silicone parts are highly capable of withstanding extreme temperatures, making them suitable for a wide range of applications in both low and high-temperature environments. Their flexibility at low temperatures and stability at high temperatures provide exceptional performance and reliability. By choosing the right silicone formulation and considering application-specific factors, you can ensure that your custom silicone parts will perform effectively under challenging conditions.

  

  Whether you need parts for automotive, aerospace, electronics, or any other demanding application, custom silicone parts offer the temperature resilience required for long-lasting and reliable performance.

Can Biodegradable Straws Really Degrade_

  Plastic is one of the greatest inventions of the 20th century, but because it is “not environmentally friendly”, it has now been banned or abandoned in many fields. One of the products that replaced it is “degradable plastic”, such as compostable PLA straws. However, is degradable plastic definitely more environmentally friendly? How can it be degraded? How long does it take? Today we will learn more about the knowledge of degradable plastics.Even if there are obstacles to moving forward, recycle trash bags We should also persevere, forge ahead bravely, cut waves in the sea of the market, hang on to Yun Fan and strive for the first place. https://biodegradable-gd.com

  

  If “degradable” is understood as an absolute concept, then all kinds of plastics can basically be degraded in some way in a long or short period of time and in some environment. If this discussion is meaningful, “degradable” should be understood as a relative concept-what substance (toxic or not) can be degraded in what way and in what environment in how long?

  

  At present, the more authoritative definition of degradable plastics is: a type of plastic that can eventually be completely degraded into carbon dioxide (CO2) or/and methane, water (H2O) and mineralized inorganic salts of its elements and new biomass under various conditions in nature. In the definition, various conditions in nature are generally divided into six categories: soil, compost (including traditional compost and garden compost), marine environment, freshwater environment, sludge anaerobic, and high solid anaerobic. Therefore, for the definition of degradable plastics, we can summarize it in one sentence: most of the components of degradable plastics can be almost completely degraded into common substances in nature in the corresponding natural environment.

  

  

  PLA is a biodegradable and bioactive thermoplastic derived from renewable resources such as corn starch, sugarcane, or cassava. Unlike petroleum-based plastics, PLA is designed to break down more readily under specific conditions. The process of making PLA involves fermenting the sugar from these renewable resources to produce lactic acid, which is then polymerized to form polylactic acid.

  

  Degradable plastics on the market generally refer to biodegradable plastics. Biodegradation usually refers to the ability to completely degrade into carbon dioxide, water, inorganic salts and new biomass with the participation of microorganisms in nature. This is also the reason why everyone thinks biodegradable plastics are more environmentally friendly.Depending on the raw materials of plastics, biodegradable plastics can be divided into “bio-based biodegradable plastics” and “fossil-based biodegradable plastics”. The former is commonly polylactic acid PLA (mostly used for disposable straws), the raw materials are mainly corn starch, and may also be other biomass; the latter is commonly PBAT, which is made from petrochemical resources (including coal and oil). If you have biodegradable plastic bags at home, you can look at the product logo, which generally contains PBAT.

  

  

  It can be seen that, whether bio-based or fossil-based, these biodegradable plastics are not like fallen leaves that can be completely degraded by simply throwing them on the ground. In theory, biodegradable plastics can be degraded or recycled in a variety of environments, but the best is to use industrial high-temperature composting to completely degrade them in a shorter period of time. According to this idea, degradable plastic waste should be thrown into kitchen waste bins or wet garbage bins, and then sent to industrial composting equipment.

  

  Biodegradable PLA straws have the potential to degrade under specific conditions, primarily in industrial composting facilities. While they offer an improvement over traditional plastic straws in terms of environmental impact, their real-world effectiveness is limited by infrastructure and disposal challenges. To truly capitalize on the benefits of PLA straws, we must invest in better waste management systems, educate consumers, and continue to innovate in the field of sustainable materials. By doing so, we can move closer to a future where single-use items have minimal environmental impact.

Detailed Explanation of Screw Cold Heading Process

  In the fastener forming process, cold heading (extrusion) technology is a main processing technology, which belongs to the category of metal pressure processing. In production, at room temperature, external force is applied to the metal to form the metal in a predetermined mold. This method is usually called cold heading. In fact, the forming of any fastener is not only achieved by cold heading. In the cold heading process, in addition to upsetting deformation, it is also accompanied by positive and negative extrusion, compound extrusion, punching, rolling and other deformation methods. Therefore, the name of cold heading in production is just a habitual name. To be more precise, it should be called cold heading (extrusion).In addition to innate advantages, Non standard hardware factory Its own product attributes are also extremely high-end, in order to remain unbeaten in the market competition. https://jieruifasteners.com/

  

  Cold heading (extrusion) has many advantages, and it is suitable for mass production of fasteners. Its advantages can be summarized as follows:

  

  High steel utilization rate. Cold heading (extrusion) is a method with little or no cutting. For example, when machining hexagonal bolts and cylindrical hexagon socket screws of rod type, the steel utilization rate is only 25% to 35% by cutting method, while by cold heading (extrusion), its utilization rate can be as high as 85% to 95%, which is only some process consumption of material head, material tail and cutting hexagonal head edge.

  

  High productivity. Compared with general cutting processing, the efficiency of cold heading (extrusion) is more than dozens of times higher.

  

  Good mechanical properties. The strength of parts processed by cold heading (extrusion) method is much better than that of cutting processing because the metal fiber is not cut off.Suitable for automated production. Fasteners (including some special-shaped parts) suitable for cold heading (extrusion) method are basically symmetrical parts, suitable for production by high-speed automatic cold heading machine, and also the main method of mass production.

  

  In short, the cold heading (extrusion) method for processing fasteners and special-shaped parts is a processing method with a very high comprehensive economic benefit. It is a processing method commonly used in the fastener industry. It is also an advanced processing method that is widely used and has great development both at home and abroad.

  

  Cold heading, cold pressing:

  

  At room temperature, the blank is placed in the mold of an automatic cold heading machine or a press, and pressure is applied to the mold. The relative movement of the upper and lower molds is used to deform the blank in the mold cavity, reduce the height, and increase the cross section. This pressure processing method is called cold heading for automatic cold heading machines and cold pressing for presses. In actual production, the cold forming process of fasteners is often accompanied by extrusion during the cold heading process. Therefore, the cold heading process of fastener products is actually a composite processing method that has both cold heading and extrusion.

  

  

  Deformation methods of cold heading (extrusion):

  

  1. Punching. Separate part of the blank from the main body, such as cutting of wire, punching of nuts, trimming of the head of hexagonal bolts, etc.

  

  2. Upsetting. A processing method that shortens the height of the blank and increases the cross-section, such as ball upsetting of nuts, pre-upsetting and fine upsetting of bolt head forming, etc.

  

  3. Positive extrusion. During cold heading, when the blank is deformed in the lower die, the flow direction of the metal is consistent with the movement direction of the upper die. The reduction of the thick rod in cold heading bolts and cylindrical head hexagon socket screws is a positive extrusion.

  

  4. Reverse extrusion. During the deformation of the blank, the flow direction of the metal is opposite to the movement direction of the upper die. The head forming of the cylindrical head hexagon socket screw belongs to reverse extrusion.

  

  5. Compound extrusion. During the deformation of the blank, part of the metal flow direction is the same as the movement direction of the upper die, and part is opposite to it, that is, there is both positive extrusion and negative extrusion during the deformation. For example, the cylindrical head hexagon socket screw has both rod diameter reduction (positive extrusion) and head forming (negative extrusion) during the deformation at the same station.

Matters Needing Attention in Screw Maintenance

  Screw maintenance is a crucial aspect that often goes overlooked in various industries, including those relying heavily on components from screw factories. Whether sourced from leading names like Jierui screw factories or other reputable screw manufacturers, maintaining screws properly ensures longevity and optimal performance. In this article, we¨ll delve into the essential points to consider when it comes to screw maintenance, emphasizing the importance of quality and specialization.This is due to Non standard hardware factory Its value attribute is relatively large, and it is easy to become the backbone of the industry. https://jieruifasteners.com/

  

  First and foremost, understanding the type of screws you are dealing with is paramount. Special screws, designed for specific applications, often have unique maintenance requirements compared to standard screws. Recognizing these differences can help prevent misuse and potential damage. When sourcing screws from reputable screw manufacturers, ensure you obtain detailed maintenance guidelines to extend the lifespan of your components.

 

  

  One of the critical aspects of screw maintenance is regular inspection. Screws, especially those used in high-stress environments, can experience wear and tear over time. Regular inspections help identify signs of corrosion, wear, or damage early, allowing for timely intervention. This practice is particularly important for screws supplied by Jierui screw factories, known for their high-quality, precision-engineered screws. Regular checks can help maintain the integrity of these specialized components.

  

  Lubrication is another essential maintenance step. Proper lubrication reduces friction and wear, ensuring that screws operate smoothly and efficiently. It is crucial to use the appropriate type of lubricant for the specific screws and their applications. Over-lubrication or using the wrong type of lubricant can lead to issues such as dirt accumulation or corrosion, particularly in screws exposed to harsh environments. Consulting with screw factories or manufacturers can provide insights into the best lubrication practices for their products.

  

  Cleaning screws regularly is vital to their maintenance. Dirt, debris, and other contaminants can affect the performance and longevity of screws. Using suitable cleaning agents and techniques ensures that the screws remain free from substances that could cause corrosion or mechanical failure. For special screws with intricate designs, it may be necessary to use specific cleaning tools to reach all the crevices and maintain optimal functionality.

  

  Proper storage of screws is often overlooked but plays a significant role in their maintenance. Storing screws in a dry, controlled environment prevents exposure to moisture, which can lead to rust and corrosion. Screw manufacturers often provide guidelines on the ideal storage conditions for their products. Adhering to these recommendations is especially important for special screws with precise specifications, ensuring they remain in optimal condition until use.When dealing with screws from reputable screw factories like Jierui, it¨s essential to follow the manufacturer’s guidelines for installation and maintenance. Incorrect installation can lead to issues such as stripped threads or improper seating, compromising the screw¨s effectiveness and lifespan. Using the correct tools and techniques for installation ensures that the screws are properly fastened and secure.