Monthly Archives: October 2024

모모If you몶re looking for the perfect tool to create complex and precise parts, look no further than plastic injection molds. This method of manufacturing has been around since 1872 when John Wesley Hyatt patented it as an alternative to ivory billiards balls. Throughout time, advancements in plastic injection molding have made this process even more valuable with today몶s tools producing a superior product at a much faster rate than ever before. Not only is plastic injection molding one of the most cost effective ways to produce high-quality parts in large volumes, but it also offers unparalleled precision compared to other techniques like casting or machining. In this post, we will take you through what exactly constitutes a 뫣plastic injection moldF and explore some of its advantages over other forming processes C so keep reading!In the industry, Aluminum mold tooling Has been a leader in the industry, but later came from behind but never arrogant, low-key to adhere to quality. https://super-ingenuity.cn/

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모모Rapid Molds

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모모Overview of Plastic Injection Molds and their Benefits

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모모Plastic injection molding is a manufacturing process that has revolutionized the way we produce plastic products. Injection molds are custom-made tools that produce different types of plastic products, from simple toys to complex car parts. The process begins by melting down raw plastic pellets in a hopper and then injecting the liquid plastic into the mold cavity. Once the plastic is cooled and hardened, the mold opens, and the finished product is ejected. The benefits of plastic injection molds are vast, including high efficiency and repeatability, cost-effectiveness, and the ability to produce complex shapes with precision. The process is ideal for mass production, making it a popular choice in industries such as automotive, aerospace, and medical. With technology advancements, the possibilities of injection molding are endless, offering a wide range of benefits that are unmatched by other manufacturing processes.

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모모The Design Process of Mold Making for Plastic Injection Molding

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모모The creation of molds for plastic injection molding is an intricate design process that requires a wide array of skills and knowledge. Experienced designers must have a comprehensive understanding of the properties of various types of plastic, as well as an eye for detail and a knack for problem-solving. Even the slightest errors in design can lead to significant defects in the finished product, and the production process can be delayed or even come to a complete standstill if the mold isn몶t designed correctly. Despite the technical challenges involved in mold making, it몶s a fascinating process that involves a combination of artistic and scientific abilities. Molds are born from brainstorming sessions, sketches, 3D models, and prototypes, as designers work tirelessly to create the perfect mold for a specific product. Once the mold is finalized, the magic of plastic injection molding begins, bringing new products to life every single day.

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모모How to Choose the Right Materials for Your Plastic Injection Molds

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모모Choosing the right materials for your plastic injection molds can make all the difference in the quality and durability of your final product. With so many options available, it can be overwhelming to determine which materials will work best for your specific project. Factors such as application, environment, and budget all come into play when making this decision. It몶s important to do your research and work closely with a knowledgeable supplier who can guide you through the process. By taking the time to choose the right materials, you can ensure that your plastic injection molds will create high-quality products that meet your standards and satisfy your customers.

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모모In conclusion, when confronted with choosing the correct materials for your plastic injection molds, keep in mind that it takes careful consideration and knowledge of all factors that could potentially affect your design. From properly gauging the volume and wall thickness to taking into consideration cycle time, shot size and pressure for optimal performance C selecting the right material is essential for successful injection molding.

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모모As stated before, every successful mold is different and must address its own unique needs. Utilizing a combination of engineering insight and experienced tool makers can help you accelerate through the plastic injection process. Make sure to gather as much feedback across the board before deciding what works best to get your desired result safely and efficiently. Whether your company is in a crunch or planning ahead of time, Super-ingenuity will work hard to make sure you reach your goals in no time!

　　The wireless transceiver module is mainly used for signal transmission to achieve multi-functional purposes such as communication and wireless control. General wireless modules are used in a variety of occasions, and the following mainly introduces three kinds.The data shows that, radio Module Its development potential should not be underestimated, and it is also the inevitability of its existence. https://www.hkulike.com/

　　First, used for channel control

　　What is channel control? Channel control is divided into parallel and multi-channel. This kind of control is generally applied to the control of complex remote-controlled robots, and the safety protection control of some places can be controlled and driven by the receiving and sending signals of wireless modules.

　　Second, for the development of wireless communication networks

　　For professionals, the link of wireless communication network needs the application of topological structure, and only with this structure can the application value be realized by using the transceiver system of wireless module. On the one hand, this kind of transmitting and receiving module is cheap, and the cost of forming a star topology is relatively low; On the other hand, the transmitting and receiving module can adopt modular design, which is small in size, convenient to use and easy to integrate. This transmitting and receiving module is very practical for wireless networks with low communication speed and close distance.

　　Third, used for serial data transmission

　　Usually, many control instruments and devices use serial port, and communication with these devices must meet the requirements of serial port, and the transmission rate and electrical characteristics must meet the serial port standard. Some special places, industrial control sites. When it is necessary to use wireless transmission mode, the transmitting and receiving module mentioned in this paper can be naturally selected. However, it must be explained here that in order to adopt this communication method, the corresponding software must be compiled at the transmitter and receiver to realize the file format conversion, so as to achieve the purpose of wireless communication.

　　If the mobile phone uses GPRS DTU on the Internet, data can be sent and received in groups, which means that users are always online and charged according to traffic, which quickly reduces the service cost. If CSD bearer is changed to GPRS, it means that dozens of people will bear the cost of the original one. Therefore, many unnecessary expenses will be greatly reduced.At the same time, radio Module 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://www.hkulike.com/

　　The advantage of GPRS DTU is that its data transmission speed is not comparable to that of GSM. At present, the transmission speed of GSM mobile communication network is 9.6K kilobytes per second, and the transmission speed of GPRS mobile phone has reached 56Kbps when it was launched at the beginning of this year, and now it has reached 115Kbps. Packet is to package Data into many independent packets, and then send these packets one by one, which is somewhat similar to sending a package. The advantage of packet switching is that it only takes up bandwidth when there is data to be sent, and it can be priced according to the amount of data transmitted, which is a more reasonable charging method for users, because most of the time and bandwidth of data transmission like the Internet are intermittent.

　　GPRS DTU can provide four different coding methods, which also provide different error protection capabilities. Using four different coding methods, each time slot can provide different transmission rates. Each user can use up to eight time slots at the same time. So GPRS DTU is called high transmission rate.

　　What are the main rooftop structures for which flat PV tiles are used and how do they look on the roof? Currently, there are still a lot of people who don’t know much about power generation tiles. They are concerned that the solar tiles would leak when in use, get hot in the summer, break easily, and not last long. In fact, you don’t have to worry so much because we, Changshun, have already conducted relevant tests on power generation tiles and passed the inspection and certification. Next, we will briefly talk about its safety performance, let’s get to know it.To some extent, panel solar flexible Our development has surpassed many peer businesses, but it has never stopped moving forward. https://www.csrenewable.com/

　　In terms of safety performance and convenience, flat PV tiles are completely higher than ordinary tiles. Some traditional tiles we used in the past are not only easy to break when used on the roof, but also not waterproof and fireproof. They need to be replaced after a few years of use. PV tiles, on the other hand, do not have to worry about these problems at all.

　　Flat Solar Tile are Used in What Fields

　　Flat PV tiles are technologically advanced, safe and durable, fireproof and waterproof. PV tiles are processed through 3 layers of special technology. The top layer is tempered glass, which is not easy to break. Even in hailstorms, the tiles will not be affected.

　　As for power generation, it is important to know that it generates electricity by absorbing solar energy, and the electricity that can’t be used up can be stored, which is very convenient and can save a lot of electricity bills. Both practical and environmentally friendly, so in recent years power generation tiles are becoming more and more popular and loved by people.

　　Flat photovoltaic tiles are suitable for any rooftop building,whether it is a high-rise, residential or commercial project in the city, a self-built house, a rural house, a villa and so on.

　　Introduction to 5-Axis CNC MachiningBy comparison, it can be seen that Plastic models for manufacturing It has certain advantages and great cost performance. https://super-ingenuity.cn/

　　5-axis CNC (Computer Numerical Control) machining has revolutionized the world of precision engineering and manufacturing. Unlike traditional 3-axis CNC machines, which operate on three primary axes (X, Y, and Z), 5-axis machines allow the cutting tool to move in five different directions simultaneously. This advanced capability significantly reduces production time, increases part accuracy, and allows for the creation of more complex geometries.

　　In this article, we will explore the benefits, applications, and why 5-axis CNC machining is an essential tool for industries requiring high-precision parts.

　　What is 5-Axis CNC Machining?

　　In 5-axis CNC machining, the cutting tool moves along the three traditional axes (X, Y, Z) but also rotates on two additional axes, A and B. This enhanced range of motion allows for the creation of highly complex shapes that would be difficult or impossible to achieve using traditional 3-axis machines. Additionally, 5-axis machining minimizes the need for multiple setups, which translates to faster production times and lower labor costs.

　　Key Features of 5-Axis Machining:

　　Simultaneous movement on five axes for enhanced cutting flexibility

　　Greater precision and accuracy due to fewer setups and repositioning

　　Improved surface finishes on complex parts

　　Capability to machine intricate geometries such as undercuts and angled holes

　　Advantages of 5-Axis CNC Machining

　　1. Reduced Setup Time and Enhanced Efficiency

　　One of the main advantages of 5-axis machining is its ability to machine multiple sides of a part in a single setup. With traditional 3-axis machining, parts often need to be repositioned or re-clamped between different machining operations. However, with a 5-axis CNC machine, the additional rotational axes allow the tool to access almost all areas of the part without the need for repositioning. This reduces setup time, minimizes human error, and increases overall efficiency.

　　2. Complex Geometries and Intricate Parts

　　[Insert Image: Complex aerospace component created using 5-axis CNC machining” target=_blank>

　　The ability to rotate the tool on multiple axes means 5-axis CNC machining can produce parts with complex shapes, intricate features, and difficult geometries. Industries like aerospace, automotive, and medical devices often require parts that feature undercuts, deep cavities, or precise angles, which would be incredibly challenging with traditional methods. 5-axis machining is perfect for producing such complex components.

　　3. Improved Surface Finish and Accuracy

　　Since 5-axis machines can machine all surfaces of a part with fewer setups, the chances of human error and inaccuracies are reduced. The ability to use shorter cutting tools also allows for higher spindle speeds with less tool vibration. As a result, the final parts have improved surface finishes, higher accuracy, and better overall quality, which is particularly important in industries like aerospace and medical device manufacturing.

　　4. Cost-Effective for Low to Medium Volume Production

　　While 5-axis CNC machines may have higher upfront costs than traditional machines, they offer significant savings in terms of reduced setup times, faster production speeds, and fewer required tools. This makes 5-axis machining a cost-effective solution for low to medium volume production runs, especially for complex and precision-critical components.

　　5. Faster Turnaround Times

　　[Insert Image: 5-axis CNC machine in a high-volume manufacturing facility” target=_blank>

　　By reducing the need for multiple setups and re-positioning, 5-axis CNC machining allows for faster production and turnaround times. This is particularly valuable in industries where speed and precision are essential, such as aerospace, automotive, and consumer electronics.

　　Applications of 5-Axis CNC Machining

　　1. Aerospace Industry

　　The aerospace industry demands parts with high precision, complex shapes, and lightweight materials like aluminum and titanium. 5-axis CNC machining is commonly used to create components such as turbine blades, engine parts, and structural components, all of which require precise tolerances and intricate geometries.

　　2. Automotive Industry

　　In automotive manufacturing, 5-axis CNC machining is used to produce high-performance parts, including engine components, transmission parts, and custom prototypes. The ability to machine complex shapes in a single setup is particularly advantageous for reducing production times in the competitive automotive sector.

　　3. Medical Industry

　　[Insert Image: Medical implants and surgical tools created using 5-axis CNC machining” target=_blank>

　　Medical devices and implants often require tight tolerances and intricate details, such as those found in custom prosthetics and orthopedic implants. 5-axis machining allows manufacturers to create complex medical components with high precision, ensuring they meet the stringent requirements of the medical field.

　　4. Tool and Die Industry

　　In the tool and die industry, 5-axis CNC machining is used to produce precision molds, dies, and fixtures with complex shapes. The enhanced flexibility of 5-axis machines allows for more intricate designs and faster turnaround times, improving the overall efficiency of the tooling process.

　　5. Energy Sector

　　In the energy industry, components for turbines, oil and gas extraction, and renewable energy technologies often feature complex geometries and materials that benefit from 5-axis machining. The ability to produce highly precise parts in a cost-effective manner makes 5-axis CNC machining an invaluable tool for the energy sector.

　　Why Choose Our 5-Axis CNC Machining Services?

　　[Insert Image: Close-up of 5-axis CNC machine with operator monitoring production” target=_blank>

　　At [Company Name” target=_blank>, we specialize in providing cutting-edge 5-axis CNC machining services that meet the needs of a variety of industries. Our state-of-the-art equipment, skilled engineers, and commitment to quality ensure that every part we produce meets the highest standards of precision and accuracy.

　　Benefits of Partnering with Us:

　　Advanced 5-axis machining technology for superior precision

　　Expertise across industries, including aerospace, automotive, and medical

　　Rapid turnaround times and flexible production capabilities

　　Competitive pricing for low to medium volume production

　　Conclusion

　　5-axis CNC machining is a game-changer for industries requiring high precision, complex geometries, and reduced production times. With its ability to handle intricate parts and streamline the manufacturing process, it has become an essential tool for industries such as aerospace, automotive, and medical devices. If you¨re looking for high-quality 5-axis CNC machining services, contact us today to learn how we can help you meet your manufacturing goals.

　　As energy resources become increasingly scarce, fully harnessing solar power generation can significantly reduce reliance on traditional energy sources. During the construction process, many buildings have installed solar tiles on their rooftops. However, to meet the demands of photovoltaic power generation, the selection of appropriate rooftop solar tiles is a critical consideration. In practice, what criteria should be used when selecting solar tiles?understand panel solar flexible In order to better serve customers and reflect the core competitiveness of products. https://www.csrenewable.com/

　　What are some of the criteria when choosing a solar tile for the rooftop

　　1.Selecting High-Quality and Durable Solar Tiles

　　Since photovoltaic power generation relies on solar energy, and the modules are installed outdoors, the quality of the selected solar tiles is of utmost importance. On one hand, the photovoltaic panels themselves need to be long-lasting and possess relatively high strength and impact resistance. For example, after installation, they should be able to withstand the demands of extreme weather conditions, such as hail, strong winds, without sustaining any damage. On the other hand, they should have a relatively long service life. If the panels are frequently damaged or require repair, it will inevitably affect their normal use.

　　2.Choosing Aesthetically Pleasing and Healthy Solar Tiles

　　As solar tiles are installed on rooftops, their coordination with the overall building architecture must be considered. The selected solar tiles should not appear too obtrusive or visually disruptive. Additionally, health factors should also be taken into account. After installation, they should not affect normal drainage and ventilation, as that could lead to the growth of bacteria. The photovoltaic panels from Beijing Changsun are produced using a display-grade etching process, resulting in a visually appealing and textured appearance. During the construction process, a multi-layer structure is utilized to maintain ventilation, drainage, and dryness between the building itself and the photovoltaic panels. This ensures that photovoltaic power generation is not only efficient but also environmentally friendly and healthier for the building’s occupants.

　　Are you curious about the medical plastic injection molding process? It¨s an essential part of producing high-quality medical equipment and implants, but do you know how it works? In this blog post, we¨ll be taking a closer look at the basic mechanics of medical plastic injection molding. We¨ll explore the necessary materials and machinery needed to complete a successful project as well as common production techniques used by industry professionals. By the end of this article, you should have a much firmer grasp on what goes into producing precision parts for medical services. So read on to find out more!In view of the actual needs of society, CNC precision engineering We need to change some original problems to better serve the society and benefit people. https://super-ingenuity.cn/

　　What Is Medical Plastic Injection Molding?

　　Medical plastic injection molding is a technique used to produce high-quality plastic parts and components that are used in medical equipment, devices, and implants. This process involves injecting liquid plastic material into a mold cavity, which is then cooled and solidified to form the desired shape. This method ensures that the final product is of consistent quality and precision, which is crucial in the medical industry where accuracy and reliability are paramount. Additionally, medical plastic injection molding is ideal for producing small, intricate parts with complex geometries that cannot be achieved with other manufacturing methods. With the advancement of technology and the increasing demand for medical equipment, the importance of this technique has only grown over the years, making it an integral part of the medical manufacturing industry.

　　Why Plastic Injection Molding is Crucial in Medical Applications

　　Plastic injection molding has become an integral part of modern-day medical applications. The medical industry requires the utmost precision and accuracy when it comes to creating medical devices, and plastic injection molding provides just that. With the help of this technology, medical professionals can manufacture intricate and complex designs that were once impossible to produce. The benefits of using plastic injection molding in the medical field include its ability to ensure durability and functionality, reduced cost, and mass production capabilities, making it a popular choice among manufacturers. With its potential to revolutionize the medical industry, plastic injection molding has truly become a crucial aspect of modern-day medicine.

　　The Benefits of Using Plastic in Medical Devices

　　In today¨s modern era, medical devices have become highly developed and advanced. Plastic is one of the most commonly used materials for manufacturing medical equipment. The use of plastic has proved to be a game-changer in the medical field as it provides numerous benefits. One significant advantage of using plastic is its lightweight and flexible nature. Medical devices made from this material are easy to handle and transport, making them ideal for mobile medical facilities. Moreover, plastic offers great strength, durability, and resistance to chemicals. Therefore, medical devices made from this material tend to have a longer lifespan and require low maintenance. With these benefits, it is no doubt that plastic has become an essential material in the manufacture of medical equipment.

　　Medical plastic injection molding is the start of a revolution in medical technology, and it¨s showing no signs of slowing down anytime soon. It is more efficient, reliable, and cost-effective than ever before. Those in the medical industry benefit from this technology not only in terms of the quality of their medical devices and equipment but also financially. Furthermore, plastic injection molded parts and components are used in numerous applications within the healthcare industry; it can be used for sterilization trays and containers, surgical tools, Band-Aids covers, inhalers cases or even packaging fo sterile goods. Ultimately, with all these advantages along with its affordability to manufacture devices that would use this technology only increases its appeal to those within the medical industries looking for cost-effective solutions not only for their products but for their bottom line.

　　injection molding medical plastics

　　medical plastic injection molding

　　JZX891 data transmission module is a high-integration micro-power half-duplex wireless data transmission module, which adopts “SI” high-performance RF chip and high-speed single chip microcomputer. The module provides 8 channels, adopts national measurement frequency points, and is equipped with professional setting software for users to change parameters. The module adopts transparent transmission mode, and can transmit data of any size without the need for users to write setting and transmission programs. The module is small in size, wide in operating voltage and convenient to use.Down-to-earth right Wireless Module In-depth research is the only way to pursue development. https://www.hkulike.com/

　　Functional features:

　　* Working frequency is 470-510MHz.

　　* Transmission distance is 1500m (1200bps).

　　* GFSK modulation method

　　* transparent transmission mode

　　* Built-in watchdog to ensure long-term reliable operation.

　　* UART/TTL, RS232 and RS485 interfaces

　　* Convenient and flexible software programming

　　* Large 512bytes data buffer.

　　* Suitable for built-in installation

　　Scope of application:

　　* Automatic meter reading and charging system for water, electricity, gas and heating;

　　* intelligent wireless PDA terminal;

　　* Wireless queuing equipment;

　　* burglar alarm;

　　:: Smart cards;

　　* Automatic control of medical and electronic instruments;

　　* Intelligent teaching equipment;

　　* Intelligent control of household appliances and lighting;

　　* wireless hanging scale, electronic scale for wireless transmission;

　　The process of installing photovoltaics on commercial and industrial roofs can be divided into the following key steps:So, I believe China BIPV Solar Panel Solution Factory In the future, it will be promising to create a miracle belonging to the industry. https://www.csrenewable.com/

　　1. Project preparation phase

　　- First determine the installation site, evaluate the scale and benefits of the photovoltaic system, and develop a project plan.

　　- Obtain necessary permits and approvals, including analysis of site property rights, static investment and operation and maintenance investment, and income distribution.

　　- Conduct on-site surveys to understand the lighting conditions, building structure, and grid access at the installation site.

　　2. Design phase

　　- Combine photovoltaic technology and power demand, and develop a detailed system design plan based on the results of the on-site survey.

　　- Determine the number and layout of photovoltaic modules, the installation method of brackets, the selection of inverters, etc.

　　- Perform calculations and simulations of the power system to ensure the stability and reliability of the system.

　　3. Procurement and construction preparation phase

　　- Select reliable suppliers to purchase photovoltaic modules, brackets, inverters and other equipment, and conduct quality inspections.

　　- Prepare the manpower, materials, tools, etc. required for construction.

　　4. Construction phase

　　- Install PV modules, erect brackets, lay and connect cables according to the design plan.

　　- Relevant safety regulations and operating procedures must be followed during the construction process to ensure construction quality and safety.

　　5. Joint adjustment and commissioning phase

　　- Connect and configure the inverter, connect and commission the system, test the grid access, etc.

　　- Ensure that the electrical parameters and performance of the system meet the design requirements, and make necessary adjustments and optimizations.

　　6. Grid supply review and grid connection phase

　　- Evaluate and review the safety and compliance of the PV system’s access to the grid.

　　- After the review is qualified, the PV system will be officially connected to the grid and start generating electricity.

　　7. Operation and maintenance phase

　　- After the PV system is put into operation, regular operation and maintenance will be carried out.

　　- Including cleaning and inspection of PV modules, operation monitoring and maintenance of inverters, inspection and maintenance of cables and wiring, etc.

　　During the entire process, special attention should be paid to the ownership of the roof or site to ensure that the photovoltaic power station is built on a site or roof with clear ownership. In addition, during the installation process, especially when constructing on the roof or special structure, special attention should be paid to waterproofing, anti-corrosion and fixing to ensure the stability and reliability of the system. At the same time, during the entire process, relevant safety regulations and standards should be followed to ensure the safety of personnel and equipment.

　　1. Wireless networkingHowever, with the development of the industry, RF Module It will also bring us more and more consumer experiences, so that users can really feel the upgrade and change. https://www.hkulike.com/

　　Networking requirements: networking in a wireless way in a local area network to realize resource sharing among devices.

　　Networking mode: wireless access points are placed in the center of local area network, and wireless network cards are installed on internet devices.

　　2. Mesh connection

　　Wireless mesh network is a pure wireless network system, and the APS in the network can be directly connected with each other through wireless channels.

　　3. Regional-oriented mobile Internet service

　　Networking requirements: provide mobile Internet service for mobile devices in this area in a large range.

　　Networking mode: base stations are selected in the area, and wireless access points are placed at each base station to form multiple overlapping cells to cover the area to be networked. If the wireless ad hoc network module is installed on the mobile device, you can enjoy the mobile networking service within this range.

　　4. Point to point connection

　　 Wireless connection between single computer and computer network

　　Networking requirements: realize wireless connection between remote computers and computer network center.

　　Networking mode: install a wireless access point external directional antenna in the computer network center, and install a wireless network card external directional antenna on a single machine opposite to the network center.

　　 Wireless connection between computer networks

　　Networking requirements: realize wireless connection between remote computer network and computer network center.

　　Networking mode: install a wireless access point external directional antenna in the computer network center, and install a wireless access point external directional antenna in the remote computer network opposite to the network center.

　　5. Point to multipoint connection

　　 Multi-point connection with different frequencies

　　Networking requirements: There are three wired networks: A, B and C. A is the central network, and it is necessary to realize the wireless connection between A network and B network and C network respectively.

　　Networking mode: a wireless bridge external directional antenna is installed in network A, and a wireless bridge external directional antenna is installed in network B opposite to network A; Another wireless bridge external directional antenna is installed on the A network, and another wireless bridge external directional antenna is installed on the C network, which is opposite to the second directional antenna of the A network.

　　 Co-frequency multi-point connection

　　Networking requirements: There are four wired networks: A, B, C and D. A is the central network, and it is necessary to realize the wireless connection between A network and B network, C network and D network respectively.

　　Networking mode: A wireless bridge external omni-directional antenna is installed on the A network, and a wireless bridge external directional antenna is installed on the B network, the C network and the D network respectively, which is opposite to the A network, and the A network is connected with the B, C and D networks at the same frequency.

　　6. Relay connection

　　 Connection across obstacles

　　Networking requirements: wireless networking should be realized between the two networks, but there are obstacles between the geographical locations of the two networks, and there is no visible path required for microwave transmission.

　　Networking mode: By establishing a relay center, find a location where two networks can be seen at the same time and set up a relay point, so that the two networks can establish a connection through relay.

　　 Long distance connection

　　Networking requirements: wireless networking should be realized between two networks, but the distance between the two networks exceeds the maximum communication distance that can be achieved by point-to-point connection.

　　Networking mode: establish a relay point between two networks, so that the two networks can establish a connection through relay.

　　Wireless mesh network can form a broadband wireless communication network covering the city, provide wireless VOIP and mobile broadband multimedia communication services, and also provide metropolitan broadband wireless mobile access services for users in certain industries.