Monthly Archives: November 2024

For the immediate pressure, motion detector sensor With its own coping style, it can break the predicament and usher in a new life through the quality of the product itself. https://www.sunlit-tech.com

　　Ensuring safety and security is of utmost importance in the fast-paced business landscape of today. Whether it’s an office complex, retail store, or warehouse, protecting employees, customers, and valuable assets is a top priority for business owners and managers. An effective way to enhance security in these environments is by using PIR (Passive Infrared) motion sensors. These advanced devices offer multiple benefits and significantly strengthen security measures in various commercial settings.

　　PIR motion sensors are electronic devices designed to detect movement within their range. They work by detecting the infrared radiation emitted by or reflected from objects in close proximity. When a significant change in infrared radiation is detected, the sensor then triggers an alarm or activates a security system, alerting the appropriate personnel about the presence of movement. PIR motion sensor detector are commonly integrated into security systems for intruder detection and have diverse applications in commercial spaces for improving safety and convenience.

　　Enhancing Safety in Commercial Environments

　　There are several ways pir motion sensor detector can optimize safety in commercial spaces:

　　1. Intrusion Detection: PIR motion sensors are highly effective at identifying unauthorized individuals accessing restricted areas. By strategically placing these sensors near entry points, corridors, and other vulnerable locations, businesses can quickly detect and respond to potential security breaches.

　　2. Emergency Lighting Control: During power outages or emergency situations, PIR motion sensors can automatically activate emergency lighting systems, ensuring that occupants can safely navigate the premises and evacuate if needed.

　　3. Energy Efficiency: PIR motion sensors can be integrated into lighting and HVAC systems to regulate energy usage based on occupancy. By automatically switching off lights and adjusting temperature settings in unoccupied areas, businesses can reduce energy wastage and lower operating costs.

　　4. Accident Prevention: In busy commercial areas such as warehouses and manufacturing facilities, the risk of accidents caused by forklifts or other mobile equipment is a constant concern. PIR motion sensors can detect pedestrians in high-traffic zones and alert equipment operators to potential hazards.

　　5. Occupancy Monitoring: PIR motion sensors can provide valuable data on occupancy patterns within commercial spaces, allowing businesses to optimize facility utilization, improve space planning, and enhance operational efficiency.

　　Implementing PIR Motion Sensors

　　When deploying PIR motion sensors in commercial settings, careful consideration of the specific needs and requirements of the environment is crucial. Factors such as spatial layout, presence of obstacles or obstructions, and desired sensitivity levels must be assessed to ensure optimal performance and reliability.Furthermore, businesses should collaborate with experienced security system integrators or professionals to design and install pir motion sensor systems aligned with their unique safety and security objectives. This may involve conducting a comprehensive risk assessment, identifying critical sensor placement areas, and integrating the sensors with existing security infrastructure for seamless operation.

　　In summary, PIR motion sensors offer a versatile and effective solution for enhancing safety in commercial spaces. By providing consistent intrusion detection, emergency lighting control, energy efficiency, accident avoidance, and occupancy monitoring, these devices play a crucial role in strengthening overall security measures and mitigating potential hazards. As technology advances, businesses can expect even more sophisticated capabilities from PIR motion sensors, further enhancing their ability to create safe and secure environments for employees, customers, and visitors.

　　Self-service payment terminals for ordering food can indeed transform the dining experience, offering several advantages for both customers and restaurants. Here¨s how they bring a new dimension to dining:For the immediate pressure, self service ordering kiosk With its own coping style, it can break the predicament and usher in a new life through the quality of the product itself. https://www.xtdkiosk.com

　　Customer Experience Enhancements:

　　Convenience and Speed: Customers can place their orders and make payments quickly without waiting in line. This reduces wait times and streamlines the ordering process, allowing diners to receive their food faster.

　　Customizable Orders: Self-service terminals often allow customers to customize their orders more easily. Options for modifying ingredients, selecting portion sizes, or adding special instructions are usually presented clearly and can be adjusted with a few taps.

　　Order Accuracy: By entering their own orders, customers reduce the likelihood of miscommunication or errors that might occur when relaying orders to a staff member. This can lead to more accurate orders and increased satisfaction.

　　Menu Exploration: Terminals typically provide detailed menus with images, descriptions, and nutritional information. This helps customers make more informed choices and discover new items they might not have noticed otherwise.

　　Payment Flexibility: Customers can pay using various methods, including credit/debit cards, mobile payments, or even gift cards, without needing to handle cash or wait for a server.

　　Privacy: Some diners prefer the anonymity of ordering through a terminal, which can be particularly beneficial for those who are shy or want to avoid interactions.

　　Restaurant Benefits:

　　Increased Efficiency: With customers placing orders directly through terminals, restaurant staff can focus on food preparation and service rather than taking orders and handling transactions. This can lead to faster service and reduced labor costs.

　　Reduced Order Errors: Self-service terminals help minimize human errors by allowing customers to input their own orders. This can improve overall order accuracy and reduce waste.

　　Upselling Opportunities: Terminals can be programmed to suggest add-ons or upgrades based on the customer¨s initial order, increasing the average check size and boosting revenue.

　　Data Collection and Insights: Self-service terminals collect data on customer preferences, popular items, and peak ordering times. This data can be analyzed to optimize menu offerings, pricing strategies, and staffing levels.

　　Improved Hygiene: In the wake of increased health and hygiene awareness, self-service terminals reduce physical contact between customers and staff, which can be a crucial factor in maintaining a clean and safe dining environment.

　　Enhanced Customer Flow: By decentralizing the ordering process, restaurants can manage customer flow more effectively, reducing congestion at the counter or cash register.

　　Features of Self-Service Payment Terminals for Food Ordering:Intuitive Touchscreen Interface: Clear and user-friendly touchscreen interfaces make it easy for customers to navigate menus and complete transactions.

　　Visual and Textual Menu Information: Detailed images and descriptions of menu items help customers make informed choices.

　　Customization Options: The ability to customize orders, such as adding or removing ingredients, is typically available.

　　Order Confirmation and Receipt Printing: Customers receive a confirmation of their order and a printed receipt or digital confirmation for tracking their order.

　　Integration with Kitchen Systems: The terminal integrates with kitchen display systems to ensure orders are sent directly to the kitchen, improving order management.

　　Multilingual Support: Multiple language options cater to a diverse customer base, enhancing accessibility and convenience.

　　Overall, self-service payment terminals for food ordering represent a significant advancement in dining technology, offering greater convenience, accuracy, and efficiency while enhancing the overall customer experience.

　　When it comes to choosing the right travel bag, materials play a crucial role in both functionality and style. Two of the most popular materials for travel bags are PVC (Polyvinyl Chloride) and leather. Each has its own set of advantages, making it essential to understand their differences to choose the best option for your travel needs. In this article, we¨ll explore the key distinctions between PVC and leather travel bags, helping you make an informed decision for your next trip. At Lees, we specialize in producing high-quality travel bags in various materials, ensuring you find the perfect fit for your style and purpose.I think functional bag It will definitely become a leader in the industry and look forward to the high-end products. https://www.leespromotion.com/

　　PVC travel bags

　　Durability

　　PVC Travel Bags:

　　PVC is a synthetic plastic material known for its high durability and water resistance. It is less prone to wear and tear compared to many natural materials, making it a great option for frequent travelers who need a bag that can withstand rough handling. Its waterproof properties make PVC travel bags perfect for outdoor use, especially in wet conditions.

　　Leather Travel Bags:

　　Leather, especially high-quality leather, is also known for its durability, but it requires proper care to maintain its quality. While leather bags are not naturally waterproof, they can resist moisture to some extent if treated. However, over time, leather may show signs of aging, such as creasing or softening, which can add to its charm if well-maintained.

　　Aesthetic Appeal

　　PVC Travel Bags:

　　PVC bags are available in a wide range of designs and colors, often offering a more modern and sleek look. The material can be transparent or opaque and is frequently used for stylish, fashionable travel bags. PVC allows for bold colors and patterns that may appeal to younger or trend-conscious consumers.

　　Leather Travel Bags:

　　Leather has a classic, timeless elegance that appeals to those looking for a more traditional and luxurious look. The texture and natural sheen of leather make it a high-end option that can elevate your overall style. Leather bags are often associated with sophistication and are perfect for business travelers or those seeking a more refined appearance.

　　PVC travel bags

　　Weight and Flexibility

　　PVC Travel Bags:

　　PVC travel bags tend to be lighter than leather bags, which makes them easier to carry, especially during long trips. The material is also more flexible, allowing it to retain its shape and withstand heavy packing without permanent deformation.

　　Leather Travel Bags:

　　Leather is generally heavier than PVC, which can be a drawback for those who prioritize a lightweight travel experience. However, leather is strong and durable, making it ideal for carrying heavier loads without losing its shape. Over time, leather also softens, giving it more flexibility, but it still remains heavier compared to PVC.

　　Maintenance and Care

　　PVC Travel Bags:

　　One of the main advantages of PVC travel bags is that they are low maintenance. They can be easily wiped clean with a damp cloth and require no special treatment to keep them in good condition. The material¨s water-resistant properties also mean you don¨t need to worry about moisture damaging your bag.

　　Leather Travel Bags:

　　Leather bags require regular care to maintain their appearance. They need to be cleaned with specific leather care products and occasionally conditioned to prevent drying or cracking. Although leather bags can last for years with proper care, they require more attention than PVC bags.

　　Price

　　PVC Travel Bags:

　　PVC is a more affordable material compared to leather, making PVC travel bags a great option for budget-conscious consumers. Despite their lower price point, they still offer excellent durability and style, providing good value for money.

　　Leather Travel Bags:

　　Leather travel bags are often more expensive due to the cost of the material and the craftsmanship involved in making them. However, many people view leather as a long-term investment because of its durability and timeless appeal.

　　Eco-Friendliness

　　PVC Travel Bags:

　　PVC is a synthetic material, and while it is highly durable, it is not as eco-friendly as natural materials like leather. The production of PVC involves chemical processes that may have environmental impacts, and PVC is not biodegradable.

　　Leather Travel Bags:

　　Leather is a natural material, and while its production can also have environmental impacts, such as resource consumption, it is biodegradable and considered more eco-friendly than PVC, especially when sourced from sustainable and ethical producers.

　　Conclusion

　　Both PVC and leather travel bags have their own unique advantages, and the right choice depends on your specific needs and preferences. If you¨re looking for a lightweight, water-resistant, and affordable option, PVC travel bags from Lees are an excellent choice. On the other hand, if you value classic style, luxury, and are willing to invest in a long-lasting product, a leather travel bag may be the better option.

　　At Lees, we offer a wide range of PVC travel bags that combine style, durability, and functionality. Explore our collection at Lees Promotion and find the perfect travel companion for your next adventure!

　　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.with led emergency warning lights For example, if it continues to develop, it will definitely become the benchmark of the industry and play an important role in leading the market. 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 lights are weak or bad, you must replace them in time.

　　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.

　　Maintain Car Lights for Clearer and Safer Driving

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

　　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 in accordance with the operating manual to avoid malfunctions. The high quality of Dayun heavy-duty truck headlights, coupled with exquisite headlight design and unique lines, injects a smart soul into the car.

　　Maintain Car Lights for Clearer and Safer Driving

　　In general, drivers must pay attention to the inspection and maintenance of headlights. Only when the headlights are bright and clear enough can we drive safely at night or in bad weather and enjoy a pleasant driving experience. Dayun heavy-duty truck headlights are bright, like bright stars in the night sky, illuminating the road ahead for truck friends!

　　X-ray machines are mainly divided into medical X-ray machines, that is, medical X-ray machines, and the other type is the luggage X-ray machines that are most commonly used in stations, airports, customs and docks, so some people also call them X-ray luggage security inspection machines or security inspection X-ray machines. However, some people also have doubts: What is the difference between the two? Does security inspection X-ray machines have radiation hazards?In order to grow rapidly, baggage scanner machines Do not hesitate to change the strategy and rearrange the products, so as to obtain unexpected results. https://secuzoan.com/

　　security x-ray machines

　　ZA100100D

　　The principle of security inspection machine is similar to that of medical X-ray machine

　　The principle of medical X-ray machine and security inspection X-ray machine is the same. X-ray machine has three parts. One is the tube, which emits X-ray radiation source. X-ray can pass through the material to see things that our naked eyes cannot see with ordinary light. There must be a tube or X-ray. Second, there must be a high-voltage transformer. The high-voltage transformer converts the general voltage into high voltage, and then provides the tube to generate electrons and then generate X-rays. This is the second part. The third part is the controller, which means how much X-ray I need to release. There must be a control board. All X-ray machines cannot escape this, whether it is X-ray or CT. Although its structure is very complicated, its structure should be the same.

　　Security X-ray machines have less radiation

　　The use of security X-ray machines is to put the luggage into the item scanning X-ray machine. After the inspection is completed, the passenger can take back his luggage and leave. The X-ray machine used for item inspection uses X-rays to pass through the object to obtain X-ray images, which are processed by computers and displayed on the computer screen to identify the image and evaluate the safety of the object. Although the principle is similar to the human body X-ray examination in the hospital, Professor Li Ziping believes that the dose of security X-ray machines should be less than the amount of X-rays irradiated to the human body. Because the security X-ray machine only needs to see the general shape of the object. Medical X-ray machines need to see the human body very clearly, so the radiation dose is greater.

　　Therefore, there is no need to worry too much about the radiation problem of security X-ray machines. In addition, whether the radiation of security X-ray machines has an impact on the human body depends on the amount of radiation received at one time, the total amount of radiation received, the radiation time, and the human body’s regulation of these radiations. Moreover, even if the security inspection machine leaks due to quality problems, it may have an impact on the staff who work nearby for a long time, but it will not have much impact on people who pass by. It is understood that the country implements a licensing management system for the use of nuclear technology. X-ray baggage inspection equipment is a Class III radiation device, which is a low-risk radiation device.

　　A memory foam travel neck pillow is a must-have for anyone seeking ultimate comfort during long journeys, whether by plane, train, or car. These pillows are designed to provide support and reduce neck strain, but not all are created equal. To ensure you select the best memory foam travel neck pillow for your needs, follow these essential tips:In order to grow rapidly, travel pillow memory foam Do not hesitate to change the strategy and rearrange the products, so as to obtain unexpected results. https://tainengjikang.com/

　　How to Choose the Best Memory Foam Travel Neck Pillow for Ultimate Comfort

　　1. Assess the Quality of Memory Foam

　　Tip: The quality of memory foam greatly impacts comfort and support. Look for pillows made from high-density memory foam that offers better cushioning and conforms to your neck’s natural curve.

　　Feature: High-density memory foam provides superior support and durability. It should quickly return to its original shape after use, ensuring consistent comfort throughout your travels.

　　2. Evaluate the Pillow Shape and Design

　　Tip: The shape and design of the pillow play a crucial role in providing ergonomic support. Choose a pillow with a contour that supports the neck and head comfortably.

　　Feature: Look for designs with a U-shape or contoured edges that fit snugly around your neck. Some pillows come with adjustable features or extra padding for customizable support.

　　3. Check for Adjustable Features

　　Tip: Adjustable features can enhance comfort by allowing you to tailor the pillow to your specific needs. This is especially useful for different sleeping positions or neck sizes.

　　Feature: Consider pillows with adjustable straps, removable inserts, or inflatable components. These features let you modify the pillow¨s firmness and support level for a personalized fit.

　　4. Examine the Cover Material

　　Tip: The cover material affects both comfort and hygiene. Opt for a cover that is soft, breathable, and easy to clean.

　　Feature: Choose a pillow with a removable, washable cover made from materials like cotton, velour, or a moisture-wicking fabric. Breathable materials help keep you cool and comfortable during extended use.

　　5. Consider Portability and Storage

　　Tip: Portability is essential for travel. The pillow should be easy to carry and store without taking up too much space.

　　Feature: Look for pillows that come with a carrying case or can be easily compressed for packing. Some travel pillows have a snap closure or strap that allows them to attach to your luggage for convenient transport.

　　6. Look for Additional Comfort Features

　　Tip: Extra features can enhance the overall comfort and functionality of the pillow. Consider additional elements that contribute to a better travel experience.

　　Feature: Some pillows include built-in neck support, adjustable headrests, or integrated massagers. Features like these can provide extra relaxation and alleviate travel-related discomfort.

　　7. Check for Durability and Longevity

　　Tip: A travel pillow should be durable enough to withstand frequent use. Evaluate the pillow¨s construction and material quality for long-term reliability.

　　Feature: Opt for pillows with sturdy seams, high-quality foam, and reinforced edges. A well-constructed pillow will maintain its shape and support over time, ensuring lasting comfort.

　　8. Read Reviews and Ratings

　　Tip: Customer reviews and ratings provide valuable insights into the pillow¨s performance and comfort level. Look for feedback from other travelers to gauge the effectiveness of the pillow.

　　Feature: Pay attention to reviews that mention comfort, support, and durability. High ratings and positive feedback from users can indicate a reliable and comfortable travel pillow.

　　9. Consider Price and Value

　　Tip: While it¨s important to invest in a quality travel pillow, it should also fit within your budget. Find a balance between cost and features to ensure you get the best value for your money.

　　Feature: Compare options within your price range and assess the features offered. A higher price does not always guarantee better quality, so consider all aspects to make an informed decision.

　　When it comes to maintaining optimal oral hygiene, choosing the right toothbrush can make a significant difference. The T6 electric toothbrush by Ximalong stands out as an exceptional choice for those seeking both quality and innovation in their dental care routine. This article explores the standout features of the T6 toothbrush, its high-quality construction, and how it compares to other ultrasonic toothbrushes on the market.For the current market situation, best electric toothbrush It has a very advantageous development prospect and an extremely superior ecological environment. https://www.21brush.com

　　T6 Electric Toothbrush: An Overview

　　The T6 electric toothbrush is engineered for superior performance, combining modern technology with user-centric design. As a high-quality toothbrush, it offers a range of advanced features that enhance brushing efficiency and overall oral health.

　　T6 electric toothbrush

　　Key Features of the T6 Electric Toothbrush

　　1.Advanced Sonic Technology:

　　The T6 toothbrush utilizes a powerful sonic motor with a vibration frequency of 42,000 times per minute. This high-frequency vibration ensures a thorough and effective clean, reaching areas that traditional manual brushing might miss.

　　2.IPX7 Waterproof Rating:

　　Designed with durability in mind, the T6 toothbrush boasts an IPX7 waterproof rating. This means it can be safely used in the shower or rinsed under running water without compromising its functionality or longevity.

　　3.Long Battery Life:

　　Equipped with a 2000 mAh lithium battery, the T6 toothbrush offers an impressive standby time of up to 200 days on a single charge. This extended battery life ensures that users can rely on the toothbrush for long-term use without frequent recharging.

　　4.Magnetic Levitation Sonic Motor:

　　The toothbrush features a magnetic levitation sonic motor, which contributes to its quiet operation. With noise levels ＋56 dB, users can enjoy a peaceful brushing experience without the distraction of loud motor sounds.

　　T6 electric toothbrush

　　5.Customizable Brushing Modes:

　　The T6 toothbrush provides options for moderate strength and soft brushing modes, catering to different dental needs and preferences. This versatility allows users to select the mode that best suits their oral health requirements.

　　6.High-Quality Brush Head:

　　The brush head of the T6 electric toothbrush is designed with silicone-covered fine bristles, ensuring a gentle yet effective cleaning action. The bristles are crafted to reach into the crevices between teeth and along the gum line, promoting better oral hygiene.

　　7.Elegant Design and Materials:

　　The toothbrush features a sleek and modern design with a combination of ABS and PC materials. Available in various colors including black, white, cold blue, deep blue, and cold green, it adds a touch of style to your daily routine.

　　8.Compact and Convenient:

　　With dimensions of 248mm26mm26mm and a packing size of 260mm70mm68mm, the T6 toothbrush is compact and easy to store or travel with. Its ergonomic design fits comfortably in hand, enhancing ease of use.

　　Briefly speaking, the services are mainly as follows:Besides, we can’t ignore. female bodyguard It has injected new vitality into the development of the industry and has far-reaching significance for activating the market. http://huanyubodyguard.com/

　　1. Meeting security

　　Business leaders often hold meetings, many of which are held in high-rise buildings. Before important meetings, our bodyguards can help managers improve their work efficiency by defining boundaries in meeting spaces and public areas. During meetings, professional security personnel can monitor entry and exit points to ensure that participants are properly protected.

　　2. Business travel security

　　CEOs often need to travel on business, and some destinations usually require attention to security. Our security experts can detect potential attackers in advance and implement pre-made security plans.

　　high-end bodyguard

　　3. Celebrity Bodyguards

　　Actresses, writers, sports stars and many other industries who have both fame and fortune have a huge demand for personal protection.

　　4. Special Event Security

　　Whether it¨s a concert, meet-and-greet, premiere or red carpet gala, face-to-face contact with the audience is particularly dangerous for celebrities. Our special event security team detects potential threats in performance spaces and award ceremonies, allowing celebrities to ensure personal safety while enjoying their face-to-face contact with fans.

　　high-end bodyguard

　　5. Paparazzi Protection

　　The public likes to know what celebrities are doing at all times, which has led to the development of paparazzi and tabloids. Our celebrity bodyguards are well-trained to effectively protect celebrities’ private space and avoid being photographed by paparazzi and conflicts with them.

　　high-end bodyguard

　　Prev:A nationwide uprising in Bangladesh has threatened the Chinese community

　　As the name suggests, a mechanical keyboard is a type of keyboard that is characterized by the fact that each key is controlled by an independent micro switch. This switch is usually called an “axis”. Depending on the micro switch, mechanical keyboards can be divided into many types, such as the traditional brown axis, blue axis, white axis, black axis, red axis, as well as Romer-G and optical axis.Not only does it perform well in data, aula gaming mouse In the market share, it is also gradually expanding, so that more people can benefit. https://www.aulastar.com/

　　What is a mechanical keyboard and how does it work?

　　Working Principle:

　　Physical Mechanical Switch: The working principle of mechanical keyboard is to achieve key triggering and feedback through physical mechanical switches. Each key is equipped with an independent mechanical switch, which consists of a spring and a switch.

　　Key Trigger: When the key is pressed, the spring is compressed and the switch is switched, triggering the action of the key. This physical triggering method makes the triggering of mechanical keyboards more reliable and direct.

　　Triggering force and triggering point: Each mechanical switch has a specific triggering force and triggering point. This means that the user needs to press a certain force to trigger the switch, and at a certain point in the key travel, the switch will complete the triggering action. This design allows users to choose different types of switches according to their preferences and needs to get the best feel and feedback.

　　Durability: Each mechanical switch has an estimated lifespan, and usually fails after hundreds of thousands or even millions of key presses. This makes mechanical keyboards more durable than other types of keyboards and the first choice for many professional users and gamers.

　　In addition, mechanical keyboards have higher durability and reliability than other types of keyboards, such as membrane keyboards. Each mechanical switch usually has a long service life and usually fails after hundreds of thousands or even millions of keystrokes. Therefore, mechanical keyboards are often considered the first choice by professional users and gamers.

　　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.in fact non-standard fasteners price Our related products were once praised by users, which is the best self-affirmation of the products. 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.