Monthly Archives: November 2024

Precautions for seat and headrest adjustmentIn order to facilitate users to have a better experience, adjustable car neck pillow Many attempts have been made to upgrade the products, and the results are also very good, and the market performance tends to be in a good state. https://www.sanlead.cc

¢Ù. Check the adjustment of the seat and headrest regularly

The driver should check the adjustment of the seat and headrest regularly to ensure that they are always in the correct position. Especially in the case of long-distance driving or frequent driver changes, the adjustment of the seat and headrest may change and need to be adjusted in time.

¢Ú. Avoid adding extra cushions or backrests to the seat

Some drivers may add extra cushions or backrests to the seat to improve comfort. However, this practice may affect the adjustment effect of the seat and headrest and reduce the protective effect of the car safety seat. Therefore, the driver should avoid adding extra cushions or backrests to the seat.

¢Û. Adjust according to personal height and body shape

Everyone¡¯s height and body shape are different, so the adjustment of the car seat headrest should also be based on the specific situation of the individual. The driver should adjust the height and angle of the seat and headrest according to his or her comfort and safety needs.

¢Ü. Follow the car manufacturer¡¯s recommendations

Finally, drivers should follow the car manufacturer¡¯s recommendations and follow the manufacturer¡¯s instructions to adjust the seat and headrest. Different car models have varying seat and headrest designs, so following the manufacturer¡¯s recommendations ensures optimal adjustment.

In short, properly adjusting the seat angle and headrest height is crucial for optimal protection. Drivers should regularly check and adjust them based on their needs to enhance safety and comfort. Additionally, following the car manufacturer¡¯s recommendations ensures the seat and headrest are set for the best results.

　　Today, I will talk to you about the cold knowledge of the watch world, and we will enter the theme directlyTo get brand praise, automatic mechanical watch It is necessary to have the spirit of constantly improving the quality of products, but also to have a bunch of eternal heart fire. https://www.supertimewatch.com/

　　Why are watch ads 10:10?

　　You can pay attention to the advertising output of the watch brand, most of the watch Pointers are staying at about 10:10, there are two main statements for this problem.

　　watch facts

　　On the one hand, if you look at the watch from an aesthetic point of view, showing the hands at 10:10 is the most coordinated and symmetrical for the entire picture.

　　watch facts

　　Another is that the hour and minute hands stop at about 10:10 this time point, you can avoid most of the brand logo of the watch, and most of the functions displayed on the watch.

　　watch facts

　　The next time you look at the watch advertising chart or the watch exhibition, you can pay attention to the details of the time stay.

　　watch facts

　　Second, the definition of the watch factory date

　　I want to share this mainly because I often see that when you buy second-hand Rolex, you always worry about when the factory date of the watch is.

　　watch facts

　　In 2012, Rolex began to stop all of its watches labeled with the so-called year, and it was displayed by 8-code numbers + numbers (garbled).

　　So in 2012 after the factory Rolex, outsiders do not know the real factory year or factory date.

　　Only Rolex original factory check the serial number will know the real so-called “factory day”, when you buy you can ask the business when this table is into the goods.

　　In the watch world is not Rolex just so, the basic all brands are so, that the so-called factory date definition in the end is what?

　　For the movement and the case from different watchmaking factories, how to define the so-called factory. To say that the moment from the movement into the case is called the factory date, I think it is inappropriate.

　　The heart of a watch is its movement, and the warranty content and scope of most watch brands are probably the internal warranty of the movement, so the moment the movement is assembled, it should be the so-called factory date.

　　However, the movement is assembled to really put into the case, during which there is a long time to adjust and test, and the moment of assembly is actually not a completely accurate factory date.

　　Like ETA’s movement 7750, 2892, etc., these relatively popular movements have an annual output of tens of thousands of units, and have actually been assembled to the hands of consumers for several years.

　　For example, you buy a Rolex in 2017, but it may be in 2014, 2015, or even earlier, Rolex has been tested, after the test will be sent to the agency, and then sold to consumers.

　　This period is actually a very long period of time, which is why the warranty of the watch is recognized by the date of the card, which is almost the same as buying a car~

　　Three, how to put the chain strap watch?

　　This is a controversial topic, and people have different opinions about it. I’m going to say two of them here, and see which one you tend to prefer.

　　watch facts

　　1, if you want to put the chain strap watch down, it must be placed sideways, and to avoid the position of the head, that is, the opposite direction of the head, the main reason for this is to fear that the watch head will be oppressed for a long time.

　　watch facts

　　The head is a relatively fragile part, if the side for a long time to hold it, may lead to the damage of the head core.

　　watch facts

　　2, the second argument is the grapevine, heard that many large watch factory teachers also agree with this argument, that is, the head of the watch must face down.

　　watch facts

　　Because the area of the head in contact with the surface is relatively small, the head is placed downward to avoid scratches on the watch to the greatest extent.

　　watch facts

　　The key point is that from a watch technician’s point of view, when the watch is maintained, the head can be replaced separately, that is to say, even if you scrape the head and damage the core, it can be replaced separately.

　　If the side of the watch is scratched, it is not very good to deal with, after all, the case is rarely replaced, so I would rather change the head core, rather than change the case.

　　Two statements, different supporters, you can evaluate for yourself which one is more acceptable.

　　Polypropylene (PP): has good toughness and impact resistance, light weight and relatively low cost.As can be seen from the new data, Pickleball injection mold The market influence is also growing, and the product share is also relatively increasing, which has great potential in the future. https://ydjshangyuzn.com

　　Polyethylene (PE): such as high-density polyethylene (HDPE), has good wear resistance and chemical corrosion resistance.

　　Nylon:

　　High strength, good wear resistance, can provide a better hitting feel.

　　Composite material:

　　It may be composed of a variety of plastics and fiber materials to combine the advantages of different materials, such as strength, elasticity and durability.

　　The choice of these materials usually depends on factors such as the design purpose, cost, performance requirements and manufacturing process of the pickleball. Pickleballs of different materials may vary in weight, elasticity, flight speed and durability to meet the needs of different players and games.

　　Circuit board PCB is the abbreviation of Printed Circuit Board, which means printed circuit board in Chinese. It is a substrate for supporting and connecting electronic components, on which conductive lines and installation positions of electronic components are printed. PCB is widely used in electronic equipment, such as computers, mobile phones, televisions and so on. It is an important part of electronic equipment, which is used to provide electrical connection and machine support. The circuit board factory is the original manufacturer specializing in the production of these circuit boards. If you need to buy PCB products, you need to conduct relevant audits on its manufacturers. In this paper, Shenzhen Lianxiaobian will elaborate on the problems that need attention in the audit of circuit board factory from four aspects.To some extent, pcb circuit board manufacturers Our development has surpassed many peer businesses, but it has never stopped moving forward. https://intechcircuit.com/

　　First, the quality management system

　　The quality management system of circuit board factory is one of the key points of audit. First of all, we should pay attention to the quality control process, including raw material procurement, production process control and finished product inspection. These processes should be clear, standardized, and can effectively control product quality. Secondly, we should pay attention to quality certification, such as ISO9001 certification. These certifications can prove that PCB factory has certain quality management ability, which is an important basis for customers to choose partners.

　　Second, the production capacity and equipment status

　　The production capacity and equipment status of PCB factory are directly related to the quality and delivery capacity of products. In the audit process, we should carefully understand the production capacity of PCB factory, including the number and scale of production lines, production cycle and production capacity. At the same time, we should pay attention to the condition of the equipment, ensure that the equipment can run normally and have a certain maintenance and update plan.

　　Iii. Environmental management and safety measures

　　Environmental management and safety measures are issues that modern enterprises must pay attention to. When auditing the PCB factory, we should pay attention to its environmental management measures, including the treatment methods of wastewater, waste gas and solid waste, and whether it complies with relevant environmental laws and regulations. At the same time, we should pay attention to safety measures to ensure that the safety risks in the production process are effectively controlled and the personal safety of employees is guaranteed.

　　Fourth, supply chain management

　　Supply chain management is another important aspect of PCB factory audit. First of all, we should pay attention to the procurement of raw materials to ensure the quality and reliability of raw materials. Secondly, we should pay attention to supplier evaluation to ensure that suppliers have certain quality management capabilities and can deliver goods on time. The quality of supply chain management is directly related to the quality and delivery ability of products, and it is the key to the long-term stable operation of PCB factory.

　　When auditing PCB factories, we need to pay attention to quality management system, production capacity and equipment status, environmental management and safety measures, and supply chain management. Only by fully understanding and grasping these problems can we ensure the selection of suitable PCB factory partners, thus ensuring product quality and delivery capacity. At the same time, PCB factory should actively improve and perfect its own management system to meet the needs and requirements of customers.

　　Here we will introduce some basic knowledge about traditional watches.In the industry, diving watch Has been a leader in the industry, but later came from behind but never arrogant, low-key to adhere to quality. https://www.supertimewatch.com/

　　watch basics

　　1. Watch styles and functions

　　Watch styles and functions. Watches are divided into two categories: mechanical and quartz. The most common mechanical watch has an automatic calendar function.

　　2. Quartz watch vs. mechanical watch

　　Which is better, a quartz watch or a mechanical watch? They both have their pros and cons, regardless of value. Quartz watches can be expensive, while mechanical watches can be cheap. Generally speaking, mechanical watches are more ornamental, while quartz watches are more accurate and easy to use. There are three ways to distinguish them.

　　(1) Look at the logo. Automatic watches will have the letters AUTOMATIC or SELF-WINDING.

　　(2) Look at the movement of the second hand. A quartz watch jumps one second at a time, while a mechanical watch has the second hand continuously moving across the dial.

　　(3) Check whether it can be wound or whether there is a sound of the automatic rotor spinning.

　　3. The indication function of the watch

　　The hands and dial are used to indicate the time, and there are also windows with numbers. The window type is mostly used for calendars. The so-called “big calendar” has two windows, which display the tens and the digits of the date respectively.

　　4. The flyback and retrograde forms of the watch hands

　　They do not rotate in a clockwise circle. The flyback is the characteristic of the chronograph returning to zero, while the retrograde is when the hands move in a “fan shape”. The retrograde movement in a fan shape is rather strange, as it automatically returns to zero after completing the full range.

　　5. Chronograph watch

　　Commonly known as “three needles and three eyes”, it also has three crowns. 1. Most of the chronograph stopwatches currently use a double-button type, with the two buttons usually at 2 and 4 o’clock. The 2 o’clock button controls the “start and stop” function, and the 4 o’clock button controls the “reset” function. 2. The operation method used is usually the process of “start—stop—-reset” or “start—stop—-start—stop—reset”. The stopwatch function must be stopped before pressing the reset button. 3. The single-button stopwatch is relatively simple, with one button controlling the “start—stop—-reset” function. Please note that after each button is pressed, it must be reset before it can be pressed a second time.

　　6. Moon phase display

　　The moon phase is actually a lunar calendar, indicating the cycle of the moon’s waxing and waning. The sun, moon and stars are the most intuitive celestial bodies, but the moon phase is related to latitude. Design principle: The moon phase function is often placed in a semicircular window of a special shape, which includes a semicircular arc and two small arcs. This carefully designed shape combined with the moon on the moon phase disk can accurately tell us the shape of the moon at the beginning or end of a cycle. Operation principle: The moon phase displays the state of the moon on the moon phase disk based on a 29.5-day cycle. There are two moons on this moon phase disk, with 59 teeth on the edge. After being pushed by the transmission wheel, the moon phase wheel advances one tooth every day, and the changes in the moon phase can be displayed on the dial in time. The 59-tooth moon phase wheel comes from the average value of the moon phase waxing and waning every 29.5 days. Since the precise rotation period of the moon is 28 days, 12 hours, 44 minutes and 2.9 seconds, the error of the moon phase display will reach 24 hours every approximately 33 months. There is usually a moon phase adjustment button on the watch case, and the moon phase display is relatively independent of functions such as chronograph and perpetual calendar.

　　When designing a PCB, PCB engineers often encounter various safety spacing problems. Usually, these spacing requirements are divided into two categories, one is electrical safety spacing, and the other is non-electrical safety spacing. So, what are the spacing requirements for designing PCB circuit boards? Circuit board factory xiaobian takes you to understand.In order to achieve the goal, pcb circuit board manufacturers Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. https://intechcircuit.com/

　　First, the electrical safety distance

　　1. Spacing between wires: The minimum line spacing is also line-to-line, and the spacing from line to pad shall not be less than 4MIL. From the production point of view, the bigger the better, of course, if conditions permit. General 10MIL is more common.

　　2. Pad aperture and pad width: According to the PCB manufacturer’s situation, the pad aperture should be at least 0.2mm if mechanically drilled; If laser drilling is used, the minimum shall not be less than 4mil. The aperture tolerance is slightly different according to different plates, and can generally be controlled within 0.05mm; The minimum pad width shall not be less than 0.2 mm.

　　3. Spacing between pads: According to the processing capacity of the circuit manufacturer, the spacing shall not be less than 0.2 mm..

　　4. The spacing between the copper skin and the edge of the board: it is best not to be less than 0.3mm. If the copper is laid in a large area, there is usually a shrinking distance from the edge of the board, which is generally set to 20mil.

　　Second, the non-electrical safety spacing

　　1. Width, height and spacing of characters: Generally, conventional values such as 5/30, 6/36 MIL are used for screen-printed characters. Because when the text is too small, it will be blurred when printed.

　　2. Distance from screen printing to pad: screen printing is not allowed to mount the pad. Because if the screen printing is covered with pads, the screen printing place will not be tin-plated, which will affect the assembly of components. General circuit board manufacturers require 8mil spacing. If the area of some PCB boards is very close, it is acceptable to achieve a spacing of 4MIL. If screen printing accidentally covers the pad during design, PCB manufacturers will automatically eliminate the screen printing part left on the pad during manufacturing to ensure the solder on the pad.

　　3. 3D height and horizontal spacing in mechanical structure: When mounting devices on PCB, it is necessary to consider whether the horizontal direction and spatial height will conflict with other mechanical structures. Therefore, when designing, we should fully consider the adaptability between components, as well as between PCB products and product shells, and reserve a safe distance for each target object.

　　Adjustment of headrest height.With the expanding influence of the industry, car headrest cushion Our business is also constantly spreading, and the development of the market is also gradually advancing. https://www.sanlead.cc

　　. Importance of headrest height

　　The headrest is an important part of the car seat, which can effectively protect the driver and passenger¨s head and neck from impact. The correct headrest height can ensure that the headrest can play the greatest protective role when the vehicle is hit violently.

　　. How to adjust the headrest height

　　First, the driver should adjust the car headrest height to be flush with the head. This is because the softest and most protective part of the headrest is in the middle of the headrest. Only when the headrest height is flush with the head can the headrest effectively protect the head and cervical spine.

　　Next, the driver should ensure that the distance between the back of the head and the headrest is as small as possible. From a physical point of view, the smaller the distance between the back of the head and the headrest when the car is hit, the greater the cushioning effect of the headrest on the head and neck. This distance should not exceed 4 cm at most, which is equivalent to the width of two fingers side by side.

　　In addition, the driver should also pay attention to the way the headrest is fixed. Some car headrests can be adjusted by rotating or sliding, while others need to be adjusted by disassembly and reinstallation. Either way, the driver should ensure that the headrest is firmly fixed to the seat to prevent it from shifting in the event of a vehicle collision.

　　Today, with the rapid development of Internet technology and the increasing demand for communication, the service requirements for the communication industry are getting higher and higher. Among them, optical fiber communication technology has experienced more than 30 years of research and application in China. The birth and development of this communication technology belongs to a revolutionary development of the telecommunications industry. This communication technology can optimize the quality of information transmission and reduce the possible crosstalk problems, and can achieve very ideal practical results. At present, the application scope of optical fiber communication technology is more and more extensive, from telecommunication industry to TV transmission, field monitoring in military and industrial production, electric power, traffic monitoring and cable TV network. This paper mainly discusses the practical application and future development trend of optical fiber communication technology, and puts forward the author’s thoughts and suggestions for reference only.Therefore, we should understand fiber optic pigtail Many benefits, absorb and summarize, and use them. https://www.fibercan-network.com/

　　[Keywords:” target=_blank> Optical fiber communication technology; Application development trend

　　The application of optical fiber communication technology mainly includes: using light wave as information carrier to realize communication function; Use optical fiber as a continuous propagation medium. At present, in terms of information communication, optical fiber communication belongs to the fourth generation communication mode. Its main characteristics are: light weight, fast propagation speed, small loss and small size, and its transmission frequency band is very wide, which can effectively resist most electromagnetic interference. These advantages make optical fiber communication gradually become the mainstream of society. At present, optical fiber is installed in most communication fields in China, and related businesses are still expanding, which has been recognized by more and more production and service fields. Understanding and studying the specific application of this communication technology can promote the development of informatization in China.

　　1 optical fiber communication technology

　　The so-called optical fiber communication is the optical fiber communication, which effectively transmits signals through optical fiber to achieve the purpose of information transmission. We can regard this optical fiber communication as an optical communication method with optical fiber as the medium [1″ target=_blank>. Among them, the main components of optical fiber are: coating, fiber core and cladding, while the inner core is usually only a few tens of microns or even a few microns, and its diameter is smaller than that of hair; Cladding is the middle layer, and the optical signal can be totally reflected in the fiber core by using the difference of specific refractive index between the fiber core and cladding, that is, the optical signal can be transmitted; Among them, the coating is mainly to improve the toughness of optical fiber, so as to protect optical fiber from damage. There is not only one light in the optical fiber communication system, but a large number of optical fibers are gathered together to form an optical cable. The reason why this kind of optical cable composed of a large number of optical fibers can transmit huge information in a unit time is mainly because the optical frequency of this optical cable is very high and the optical fiber transmission frequency band is very wide, so its transmission capacity is relatively large. The advantages of this optical fiber communication technology include: relatively small volume, very light weight, very few metal materials, strong electromagnetic interference resistance and radiation resistance, very good confidentiality, anti-eavesdropping, wide frequency band, good anti-interference performance, low price, etc. At the same time, the source of light materials used is very rich, which can reduce the application of many non-ferrous metals, and the diameter is very small and not heavy.

　　2 concrete application of optical fiber communication technology

　　2.1 Application in Communication

　　At present, in the field of communication, optical fiber communication technology plays a very important role by using optical fiber as the transmission medium. Especially in metropolitan communication, local communication and international communication industries, optical fiber communication technology has been widely used [2″ target=_blank>. At the same time, the optical fiber communication technology is constantly expanding and has become a very key technology in the communication field, which has effectively promoted the further development of the entire communication industry.

　　Injection molding is a widely used manufacturing process for producing complex and precise plastic components, and among the various products made through this technique is the injection molding ball. In this article, we will explore what injection molding balls are, their applications, advantages, and why Shangyu is a trusted name in the injection molding industry.After that, Pickleball welding equipment Not afraid of the future, dare to fight and fight, and won applause again and again in the market. https://ydjshangyuzn.com

　　Understanding Injection Molding Balls

　　Injection molding balls are spherical components produced through the injection molding process. They are typically made from various thermoplastic materials, allowing for different properties based on the specific application requirements. These balls can be produced in various sizes and configurations, making them suitable for a wide range of applications across multiple industries.

　　How Injection Molding Works

　　The injection molding process involves several key steps:

　　Material Preparation: Thermoplastic pellets are fed into a heated barrel where they are melted.

　　Injection: The molten material is injected into a mold cavity under high pressure. The mold is usually made of steel or aluminum and is designed to create the desired shape of the ball.

　　Cooling: Once the mold is filled, the material is allowed to cool and solidify, forming a solid plastic ball.

　　Ejection: After cooling, the mold opens, and the finished injection molding ball is ejected.

　　High-Performance Pickleball Welding Machine

　　Common Materials Used

　　Injection molding balls can be made from various materials, including:

　　Polypropylene (PP): Lightweight and chemically resistant, making it suitable for various applications.

　　Polyethylene (PE): Known for its toughness and impact resistance.

　　Acrylonitrile Butadiene Styrene (ABS): Offers high strength and rigidity, ideal for functional parts.

　　Polycarbonate (PC): Provides high impact resistance and transparency.

　　Applications of Injection Molding Balls

　　Injection molding balls have diverse applications across multiple industries, including:

　　Automotive: Used in components like bearings, seals, and other parts requiring precise dimensions.

　　Sports Equipment: Balls used in various sports, such as exercise balls, can be manufactured using injection molding for durability and performance.

　　Toys and Games: Many plastic toys and game pieces are made using this method to ensure consistent quality and safety.

　　Medical Devices: Used in various medical equipment and devices where precision and reliability are critical.

　　Advantages of Injection Molding Balls

　　Choosing injection molding for producing balls offers several advantages:

　　1. Precision and Consistency

　　Injection molding provides exceptional precision and uniformity in the production of balls, ensuring that each component meets strict quality standards. This consistency is vital for applications requiring exact dimensions.

　　2. Cost-Effectiveness

　　Once the mold is created, the injection molding process allows for the mass production of balls at a lower cost per unit. This makes it an economical choice for large-scale manufacturing.

　　3. Complex Shapes and Designs

　　Injection molding enables the production of intricate shapes and designs that would be challenging to achieve with other manufacturing methods. This flexibility allows for innovative product development.

　　4. Material Versatility

　　The wide range of thermoplastic materials available for injection molding allows manufacturers to select the best material for specific applications, enhancing the functionality of the end product.

　　Why Choose Shangyu for Injection Molding Balls?

　　At Shangyu, we specialize in the production of high-quality injection molding balls tailored to meet our clients’ specific needs. Our state-of-the-art facilities and experienced team ensure that every component we produce adheres to the highest quality standards.

　　As electric vehicles (EVs) continue to grow in popularity, the demand for convenient and efficient charging solutions has never been higher. Yilade’s retractable ev cable reel is designed to meet this need, offering a practical and user-friendly solution that streamlines the charging process for both home and commercial use.So we can draw a preliminary conclusion, ev charging cable It is helpful to the needs of the industry market and social development. https://www.evyilade.com/

　　The Problem with Traditional Charging Cables

　　Traditional EV charging cables, while essential, often come with a set of challenges. They can be cumbersome, easily tangled, and take up unnecessary space in your garage or parking area. These cables can also pose a tripping hazard and may be difficult to store neatly, leading to wear and tear over time.

　　Retractable Charge Cable Type 2 to Type 1 3.5KW to 7KW Electric Car Charging Cable Reel

　　The Yilade Solution: Retractable EV Cable Reel

　　Yilade’s retractable EV cable reel addresses these issues head-on. This innovative device is designed to keep your charging cable organized, protected, and ready for use at any time. With its compact and durable design, the Yilade cable reel ensures that your EV charging process is as smooth and hassle-free as possible.

　　Key Features and Benefits

　　1.Tangle-Free Convenience: The retractable design of the Yilade cable reel eliminates the frustration of tangled cables. With a simple pull, the cable extends to the desired length, and when you’re done, it retracts smoothly back into the reel, keeping your space tidy and clutter-free.

　　2.Space-Saving Design: The compact size of the Yilade cable reel makes it easy to mount on a wall, saving valuable floor space in your garage or parking area. Its sleek design ensures that it blends seamlessly with your existing setup.

　　3.Durability and Protection: The cable reel protects your EV charging cable from environmental factors such as dust, moisture, and UV exposure. This extends the lifespan of your cable, ensuring reliable performance for years to come.

　　4.User-Friendly Operation: The Yilade cable reel is easy to install and operate. Whether you’re a first-time EV owner or a seasoned pro, you’ll appreciate the simplicity and efficiency of this charging solution.

　　5.Versatility for All EV Models: Compatible with a wide range of EV models, the Yilade cable reel offers flexibility and convenience, making it a suitable choice for both home and commercial use.

　　Retractable Charge Cable Type 2 to Type 1 3.5KW to 7KW Electric Car Charging Cable Reel

　　Why Choose Yilade?

　　Yilade is committed to providing high-quality, innovative solutions for the modern EV owner. With a focus on durability, convenience, and user satisfaction, Yilade’s retractable EV cable reel is an investment in both the longevity of your charging cable and the overall efficiency of your charging routine.

　　In conclusion, if you’re looking to enhance your EV charging experience, Yilade’s retractable EV cable reel is a must-have accessory. It not only keeps your charging area organized but also protects your cable, making charging your EV more convenient than ever. Say goodbye to tangled cables and hello to streamlined charging with Yilade.