Production process of PET blood collection tube:If you want to make a big difference in the market, plastic mould part manufacturer It is necessary to intensify the upgrading of products on the original basis in order to meet the consumption needs of consumers. https://www.dghrjmmj.com

　　Raw material preparation: High quality PET particles are selected as the main raw material, and certain additives are added to improve performance.

　　Injection molding: Heating PET particles to a molten state and injecting them into the blood collection tube mold through an injection molding machine to form a preliminary tube shape.

　　Cooling solidification: Cooling in the mold to solidify and shape the tube body.

　　Demoulding and removal: Remove the formed blood collection tube from the mold.

　　Subsequent processing may include trimming the pipe mouth, inspecting the appearance quality, and performing disinfection treatment.

　　Production process of test tube mold accessories:

　　Design and Planning: Based on the requirements of the mold, design the shape, size, and structure of the accessories.

　　Material selection: Choose suitable steel materials, such as tool steel, according to the requirements of the accessories.

　　Rough machining: Processing steel into rough shapes through processes such as turning and milling.

　　Heat treatment: Quenching, tempering and other heat treatments are carried out on the rough machined parts to improve hardness and wear resistance.

　　Precision machining: high-precision machining methods such as grinding and electrical discharge machining are used to achieve the designed precision and surface roughness requirements for the parts.

　　Assembly and debugging: Assemble and debug various mold components to ensure their precision and smooth movement.

　　In today’s technologically advanced world, PIR (Passive Infrared) motion sensors have become a cornerstone for enhancing security and automation. Their versatility allows them to be used in various settings, but one of their most critical applications is in outdoor environments. Effectively utilizing PIR motion sensors outdoors can significantly boost security, energy efficiency, and convenience. Here¨s how to harness the full potential of these devices.For the current market situation, motion detector sensor It has a very advantageous development prospect and an extremely superior ecological environment. https://www.sunlit-tech.com

　　PIR motion sensors work by detecting changes in infrared radiation within their field of view. This makes them ideal for outdoor environments where detecting movement or changes in heat patterns can be crucial. These sensors, often referred to as PIR detectors, are designed to identify the heat emitted by moving objects, such as people or animals, which makes them highly effective in surveillance and security systems.When installing PIR motion sensors outdoors, the key is to understand their operating principles and optimize their placement. Unlike indoor environments, outdoor spaces can present challenges such as varying temperatures, weather conditions, and potential obstructions. To maximize the effectiveness of your motion detector sensors, it¨s essential to consider these factors carefully.

　　First and foremost, the placement of PIR motion sensors is crucial. Positioning them at strategic locations can help cover larger areas and ensure comprehensive monitoring. Common placements include near entryways, driveways, and garden paths. It¨s important to avoid placing sensors directly in the path of sunlight, as extreme heat can interfere with their ability to detect motion accurately. Additionally, ensure that the sensors are installed at a height that allows them to effectively cover the desired area without being obstructed by foliage or other objects.

　　Adjusting the sensitivity of your PIR motion sensors can also enhance their performance in outdoor settings. Many models come with adjustable sensitivity settings, which can be fine-tuned based on the specific needs of the environment. For instance, you might want to set a higher sensitivity level for areas with frequent foot traffic or lower sensitivity for locations with less activity. Proper calibration ensures that the sensor responds accurately to real threats while minimizing false alarms.Incorporating motion sensor alarms into your outdoor setup can add an extra layer of security. These alarms are activated when the PIR motion sensors detect unusual movement, providing immediate alerts and deterrence against potential intruders. Integrating these alarms with a broader security system can further enhance their effectiveness. For example, pairing PIR motion sensors with video surveillance cameras can provide a comprehensive security solution that not only detects but also records suspicious activities.Another important consideration is the power source for outdoor PIR motion sensors. Many models are designed to be weather-resistant and can operate on battery power or be hardwired into an electrical system. Battery-operated sensors offer flexibility in placement but may require periodic maintenance to ensure they remain operational. On the other hand, hardwired systems provide a more permanent solution but require more extensive installation.

　　Weatherproofing is essential for outdoor PIR motion sensors to ensure their longevity and consistent performance. Choose sensors specifically designed to withstand various weather conditions, including rain, snow, and extreme temperatures. Proper installation with sealed enclosures can help protect the sensors from environmental factors that could otherwise impact their functionality.Regular maintenance is also key to keeping your PIR motion sensors in top working condition. Periodically check the sensors for any obstructions, dirt, or debris that may affect their performance. Cleaning the sensors and ensuring that they are free from obstructions will help maintain their sensitivity and accuracy.

　　In summary, effectively using PIR motion sensors in outdoor environments involves careful planning and consideration of various factors. By strategically placing sensors, adjusting their sensitivity, integrating motion sensor alarms, and ensuring proper weatherproofing and maintenance, you can maximize their benefits. These steps not only enhance security but also contribute to a more efficient and automated outdoor space. Embracing these practices will help you make the most of your PIR motion sensors and ensure they serve their purpose effectively.

　　LED emergency warning lights play a critical role in ensuring safety and communication on the roads and in various emergency situations. These lights are designed to attract attention and convey specific messages based on their color. Understanding the common colors used in LED emergency warning lights can help you choose the right lighting solutions for your needs. In this article, we’ll explore the significance of different colors and their typical applications, using keywords such as LED warning lights, LED emergency warning lights, LED warning light bar, and Longkexin LED warning lights.In view of the actual needs of society, led strobe warning lights We need to change some original problems to better serve the society and benefit people. https://www.lkx-mascarello.com

　　What Are the Common Colors Used in LED Emergency Warning Lights?

　　1. Red LED Warning Lights

　　Red is one of the most recognized colors used in LED emergency warning lights. It is universally associated with danger, urgency, and the need to stop or yield. Red LED warning lights are commonly used by:

　　Police Vehicles: To indicate an emergency or enforce traffic laws.

　　Fire Trucks: To signal their presence and urgency while responding to fires.

　　Ambulances: To alert drivers and pedestrians to give way for emergency medical services.

　　Red lights are effective in quickly drawing attention and prompting immediate action from other road users.

　　What Are the Common Colors Used in LED Emergency Warning Lights?

　　2. Blue LED Warning Lights

　　Blue LED warning lights are also widely used in emergency situations. They are often paired with red lights to increase visibility and convey authority. Blue lights are typically used by:

　　Law Enforcement: In many regions, blue lights are exclusive to police vehicles, indicating their authoritative presence.

　　Emergency Medical Services: In some areas, blue lights are used on ambulances along with red lights to enhance visibility.

　　The combination of red and blue lights helps to create a clear signal that an emergency vehicle is approaching.

　　What Are the Common Colors Used in LED Emergency Warning Lights?

　　3. Yellow/Amber LED Warning Lights

　　Yellow or amber LED warning lights are commonly used for caution and to indicate a slower-moving vehicle or potential hazard. These lights are found on:

　　Tow Trucks: To warn other drivers of a vehicle being towed and the need to be cautious.

　　Construction Vehicles: To alert drivers to the presence of construction work and equipment.

　　Utility Vehicles: Used by utility workers to signal maintenance or repairs on roadways.

　　Yellow lights are effective in conveying a need for caution without the urgency associated with red or blue lights.

　　Traveling can be exhilarating, but long journeys often come with discomfort, especially when it comes to sleep. A quality memory foam travel pillow can make all the difference, providing support and comfort during flights, road trips, or even train rides. However, choosing the right one involves considering several factors to ensure it meets your specific needs. Here¨s a guide to help you choose the perfect memory foam travel pillow for your next trip.We have every reason to believe. travel pillow memory foam It will become the mainstream of the industry and will gradually affect more and more people. https://tainengjikang.com/

　　How to Choose the Perfect Memory Foam Travel Pillow for Your Next Trip

　　JK796

　　1. Consider Your Sleeping Style

　　The first step in choosing a memory foam travel pillow is to consider your sleeping style. Do you usually sleep with your head tilted to one side? Do you prefer sleeping upright or leaning forward? Understanding your typical sleeping position will help you choose a pillow that provides adequate support and aligns your neck and spine properly.

　　2. Neck Support and Comfort

　　One of the primary benefits of a memory foam travel pillow is its ability to contour to the shape of your neck and head, providing personalized support. Look for a pillow with medium to firm density memory foam, as this will offer the best balance of comfort and support. The pillow should maintain its shape and provide consistent support throughout your journey.

　　3. Size and Portability

　　The size and portability of the travel pillow are crucial factors, especially if you have limited space in your carry-on luggage or backpack. Opt for a pillow that is compact and lightweight yet offers sufficient support. Many memory foam travel pillows come with compression bags or travel cases that make them easier to carry and store when not in use.

　　4. Material and Breathability

　　Check the material used in the pillow cover and the breathability of the memory foam itself. A breathable cover helps regulate temperature and keeps you cool during warm journeys. Some pillows feature moisture-wicking properties to prevent sweat buildup, enhancing comfort, especially on long flights or in humid conditions.

　　5. Adjustability and Versatility

　　Consider whether you prefer a traditional U-shaped pillow or a more versatile design that can be adjusted to different sleeping positions. Some memory foam travel pillows offer adjustable straps or toggles that allow you to customize the fit around your neck. This adjustability ensures maximum comfort and support, regardless of how you prefer to sleep.

　　6. Ease of Maintenance

　　Travel pillows can accumulate dirt and odor over time, so choose one that is easy to clean. Look for pillows with removable and washable covers, or those that can be spot-cleaned with ease. This feature not only helps maintain hygiene but also prolongs the lifespan of your travel pillow.

　　7. Durability and Longevity

　　Invest in a travel pillow that is durable and built to last. Quality memory foam retains its shape and resilience over time, ensuring that your pillow continues to provide optimal support through multiple trips. Check customer reviews and product specifications to gauge the durability of the pillow before making a purchase.

　　8. Reviews and Recommendations

　　Before finalizing your decision, read reviews and recommendations from other travelers who have used the pillow. Honest feedback can provide valuable insights into the pillow¨s comfort, support, and overall performance during real-world use. Look for pillows with high ratings and positive reviews to ensure satisfaction.

　　9. Budget Considerations

　　While quality should be your priority, consider your budget when choosing a memory foam travel pillow. There are options available across different price ranges, so you can find a pillow that meets your needs without breaking the bank. Compare features and prices to make an informed decision that aligns with your budget.

　　10. Trial Period and Return Policy

　　If possible, choose a memory foam travel pillow that comes with a trial period or a generous return policy. This allows you to test the pillow and determine if it suits your comfort preferences before committing to it for your travels. A satisfaction guarantee ensures peace of mind and helps you make a confident purchase decision.

　　Mold core pins are slender, cylindrical components inserted into the mold cavity to create holes or internal features in the final product. They are made from various materials, including stainless steel, tool steel, and carbide, depending on the application and material being molded. Their primary function is to ensure the accuracy and integrity of the internal features of molded parts.Now, everyone is right plastic mould part manufacturer Are more concerned, hoping to get more benefits from it. https://www.dghrjmmj.com

　　1. The Role of Core Pins in Injection Molding

　　Core pin injection molding relies heavily on the precision of these pins. They define the exact shape and dimensions of the internal features of a part. Any deviation in the size, shape, or position of the core pins can result in defects, affecting the functionality and aesthetics of the final product. High-quality mold core pins ensure that each molded part meets the required specifications with minimal variation.

　　2. Durability and Wear Resistance

　　Mold core pins must withstand the high pressures and temperatures of the injection molding process. A reputable mold core pins factory produces pins with excellent durability and wear resistance, ensuring they can endure repeated cycles without significant wear or deformation. This durability translates to longer mold life and consistent part quality over time.

　　3. Material Selection

　　The choice of material for mold core pins is crucial. Different materials offer varying levels of hardness, toughness, and resistance to wear and corrosion. A reliable mold core pins supplier can provide guidance on the best material for specific applications, ensuring optimal performance and longevity. For instance, carbide core pins are known for their exceptional hardness and wear resistance, making them ideal for high-volume production runs.

　　4. Surface Finish and Coating

　　The surface finish of mold core pins plays a significant role in the injection molding process. Smooth, polished surfaces reduce friction and wear, enhancing the pin’s lifespan and the quality of the molded parts. Additionally, some core pins are coated with specialized materials to further improve their performance. These coatings can provide additional wear resistance, reduce friction, and enhance the release of the molded part from the pin.Importance of Choosing the Right Mold Core Pins Supplier and Factory

　　Selecting the right mold core pins supplier and factory is critical to the success of the injection molding process. Here are some factors to consider:

　　5. Quality and Consistency

　　A reputable supplier ensures that each mold core pin meets stringent quality standards. Consistent quality is vital to maintain the precision and integrity of the molded parts, reducing the risk of defects and rejections.

　　6. Customization and Expertise

　　Different injection molding projects have unique requirements. A skilled supplier can provide customized mold core pins tailored to specific applications. Their expertise in material selection, design, and manufacturing ensures optimal performance and longevity.

　　7. Timely Delivery and Support

　　In the fast-paced manufacturing industry, timely delivery is crucial. A reliable mold core pins factory ensures on-time delivery of high-quality pins, minimizing downtime and production delays. Additionally, they offer ongoing support and assistance, helping manufacturers address any challenges that may arise during the molding process.

　　Mold core pins are essential components in the injection molding process, significantly affecting the precision, durability, and overall quality of molded parts. Choosing a reliable mold core pins supplier and factory ensures that these critical components meet the highest standards, contributing to the success and efficiency of the injection molding process. By understanding the role and importance of core pins, manufacturers can make informed decisions, leading to improved product quality and manufacturing efficiency.

　　Eyes are the windows of the human soul. Similarly, headlights are like the eyes of heavy trucks. Whether it is day or night, driving lights are crucial for vehicles. They can not only help you see the road clearly, but also remind the other party of the oncoming car, which is helpful for driving safety. Therefore, timely maintenance of headlights is an indispensable part for drivers.According to related reports, led emergency warning lights To a large extent, it leads the changes of market conditions. https://www.lkx-mascarello.com

　　First of all, we need to check the working status of headlights regularly. Including low beam, high beam, clearance lights, lighting, turn signals and fog lights. Every time you start the vehicle, you should check the vehicle lights. If you find that the car tail lights are weak or bad, you must replace them in time.

　　Ensure Clear and Safe Driving: Maintain Your Car Lights!

　　Secondly, we should pay attention to the cleaning of headlights. Trucks are on the road most of the time, and the surface of the headlights is often covered with dust or other stains, which directly affects the lighting effect of the headlights. Therefore, regular cleaning of the headlights and keeping their surface clean are important to ensure the lighting effect of the headlights.

　　In addition, we must also be familiar with the rules for the use of headlights. If there is a vehicle ahead, you should switch the high beam to low beam in time to avoid glare to others and avoid driving risks; when turning or changing lanes, you should turn on the turn signal in advance to remind vehicles on the same road to drive in an orderly manner.

　　Ensure Clear and Safe Driving: Maintain Your Car Lights!

　　Finally, choosing high-quality headlights cannot be ignored. In order to ensure driving safety, the choice of headlights should pay attention to both brand and quality, and the installation should be carried out according to the operating manual to avoid malfunctions. Longkexin truck lights are of high quality, coupled with exquisite headlight design and unique lines, which injects a smart soul into the car.

　　In general, drivers must pay attention to the inspection and maintenance of headlights. Only when the headlights are bright enough and clear enough can we drive safely at night or in bad weather and enjoy a pleasant driving experience.

　　Silicone ice cube maker cylinder cup molds have gained popularity for their convenience, versatility, and durability. Whether you’re looking to chill your drinks, create unique ice shapes, or even freeze other liquids like juice or coffee, these molds offer an efficient solution. This blog post will explore the benefits, uses, and considerations when choosing silicone ice cube maker cylinder cup molds.If we can practice these points, customized silicone mould Will be unique, become a leader in the industry, and keep moving forward. https://lxsiliconeparts.com/

　　Why Choose Silicone Ice Cube Molds?

　　Silicone has become the go-to material for ice cube molds for several reasons:

　　Flexibility and Ease of Use: Silicone molds are flexible, making it easy to pop out ice cubes without much effort. Unlike traditional plastic molds, silicone won¨t crack or break when you try to remove the ice.

　　Durability: Silicone is a durable material that can withstand extreme temperatures, from freezing cold to boiling hot. This means you can use these molds in the freezer, microwave, or dishwasher without worrying about damage.

　　Non-Toxic and Food Safe: High-quality silicone is non-toxic, BPA-free, and food-safe. This ensures that your ice cubes are free from harmful chemicals and safe for consumption.

　　Versatility: Silicone ice cube maker cylinder cup molds can be used for more than just ice. They are perfect for freezing juice, coffee, or even creating homemade popsicles. Some creative uses include freezing herbs in olive oil or making mini ice cream bites.

　　silicone ice cube maker

　　Design and Features of Cylinder Cup Molds

　　Cylinder cup molds are particularly popular because of their unique shape and functionality:

　　Uniform Shape: The cylindrical design allows for uniform ice cubes, which not only look appealing but also melt more slowly, keeping your drinks colder for longer.

　　Space-Saving Design: These molds often come with a compact design, making them easy to store in the freezer without taking up too much space.

　　Variety of Sizes: Cylinder cup molds come in various sizes, from small cubes ideal for cocktails to larger ones perfect for pitchers or large tumblers.

　　Lid Options: Many silicone cylinder cup molds come with lids, which help prevent spills and keep the ice free from freezer odors.

　　How to Use Silicone Ice Cube Maker Cylinder Cup Molds

　　Using silicone ice cube molds is straightforward, but there are a few tips to ensure the best results:

　　Filling: When filling the molds with water or any other liquid, leave a small gap at the top to allow for expansion as the liquid freezes.

　　Freezing: Place the filled molds flat in the freezer. For best results, allow them to freeze for several hours or overnight.

　　Unmolding: To remove the ice cubes, simply twist the silicone mold or push from the bottom to pop out the cubes easily.

　　Cleaning: Silicone molds are dishwasher safe, but they can also be washed by hand with warm soapy water. Ensure they are completely dry before storing to prevent any odors.

　　silicone ice cube maker

　　Considerations When Choosing Silicone Ice Cube Molds

　　When selecting silicone ice cube maker cylinder cup molds, consider the following:

　　Material Quality: Ensure the mold is made from high-quality, food-grade silicone that is BPA-free and non-toxic.

　　Size and Capacity: Choose a size that fits your needs, whether you want small cubes for cocktails or larger ones for pitchers.

　　Additional Features: Look for molds with lids or other features that make them more convenient to use and store.

　　Conclusion

　　Silicone ice cube maker cylinder cup molds are a versatile and practical addition to any kitchen. They offer durability, ease of use, and the ability to create perfectly shaped ice cubes that enhance your drinks. Whether you¨re preparing for a party or just enjoying a cold drink at home, these molds provide a convenient way to keep things cool. Explore the different designs and sizes available, and elevate your drink experience with high-quality silicone ice cube molds.

　　Before buying the AULA 87-key mechanical keyboard, you can do the following homework:Now, everyone is right aula gaming keyboard Are more concerned, hoping to get more benefits from it. https://www.aulastar.com/

　　What homework should I do before buying an AULA 87-key mechanical keyboard?

　　1. Understand the Wolf Spider brand: AULA is a well-known electronic peripheral brand. Understand its brand background, reputation, product quality and other information.

　　2. Study the features of the AULA 87-key mechanical keyboard: Understand the technical parameters, special features, design style, etc. of this keyboard to determine whether it meets your needs and personal preferences.

　　3. Read user reviews and comments: Find user reviews and comments on the web to learn about other users’ experience and comments on the AULA 87-key mechanical keyboard so as to evaluate its performance and reliability.

　　What homework should I do before buying an AULA 87-key mechanical keyboard?

　　AULA F87 Gasket Mechanical Keyboard

　　4. Compare prices and value for money: Compare prices offered by different sales channels and retailers, while considering the performance, quality and features of the keyboard to determine the most cost-effective purchase option.

　　5. Understand after-sales service: Check the after-sales service policy of the AULA brand to understand its return, exchange, repair, warranty and other related information so that you can get timely support and service when needed.

　　6. Consider personal needs: According to your usage habits and needs, determine whether you need specific functions, such as backlight, programmable keys, waterproof design, etc., so as to choose the AULA 87-key mechanical keyboard style that best suits you.

　　7. Budget planning: Determine the price range for purchasing the AULA 87-key mechanical keyboard based on your own budget so that you can arrange your funds reasonably when purchasing.

　　Please note that the above are just some common homework before purchasing the AULA 87-key mechanical keyboard. The specific purchase decision still needs to be made based on personal needs and preferences.

　　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.In order to open the market, silicone baby teether Constantly improve the ability of business development and create an extraordinary brand image for it. 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.

　　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.As it happens, many people are killed Non standard hardware factory And bring more benefits, make it flourish, and promote the industry greatly. 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.