What Are the Benefits of Cold Heading of Screws

  In the fastener forming process, cold heading (extrusion) technology is a main processing technology, which belongs to the category of metal pressure processing. In production, at room temperature, external force is applied to the metal to form the metal in a predetermined mold. This method is usually called cold heading. In fact, the forming of any fastener is not only achieved by cold heading. In the cold heading process, in addition to upsetting deformation, it is also accompanied by positive and negative extrusion, compound extrusion, punching, rolling and other deformation methods. Therefore, the name of cold heading in production is just a habitual name. To be more precise, it should be called cold heading (extrusion).contemporaneity non standard fasteners Our competitors have not made large-scale improvements, so we should get ahead of everyone in the project. https://jieruifasteners.com/

  

  

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

  

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

  

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

  

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

  

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

  

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

  

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

What Are Common Misconceptions About Residential Geothermal Heat Pumps

  As the push for sustainable living continues to grow, many homeowners are turning to geothermal heat pumps as a viable option for efficient heating and cooling. However, despite their increasing popularity, several misconceptions about geothermal ground source heat pumps can lead to misunderstandings and hesitation. In this article, we¨ll debunk some of the most common myths surrounding geothermal energy heat pumps to help you make an informed decision about this eco-friendly technology.So, air source heat pump On the contrary, there is still a lot of room to play. http://mangoenergyheatpump.com

  

  1. Geothermal Heat Pumps Are Too Expensive

  

  One of the most widespread misconceptions about geothermal heat pumps is that they are prohibitively expensive. While the initial installation cost of a geothermal ground source heat pump is higher compared to traditional heating and cooling systems, the long-term savings can make it a cost-effective choice. The high upfront investment is often offset by significantly lower energy bills, reduced maintenance costs, and various tax incentives and rebates. Over time, the efficiency and durability of geothermal energy heat pumps can result in substantial savings, making them a financially wise decision.

  

  2. Geothermal Heat Pumps Don¨t Work in Cold Climates

  

  Another common myth is that geothermal heat pumps are ineffective in colder climates. In reality, geothermal ground source heat pumps are highly efficient regardless of the external temperature. They work by transferring heat from the ground, which maintains a relatively constant temperature throughout the year. Even in regions with harsh winters, the ground remains a stable heat source, allowing geothermal energy heat pumps to provide consistent heating and cooling performance.

  

  3. Installation Is Too Disruptive

  

  Some homeowners worry that installing a geothermal heat pump will be too disruptive and require extensive excavation. While it¨s true that installing a geothermal ground source heat pump involves some digging, advancements in technology and installation methods have significantly reduced the impact. Horizontal loop systems, which require extensive digging, can be replaced with vertical loop systems that involve smaller boreholes. Moreover, the installation process is generally less disruptive than major renovations and is often completed within a few days.

  

  4. Geothermal Heat Pumps Require Constant Maintenance

  

  There is a misconception that geothermal energy heat pumps demand constant maintenance. In fact, geothermal heat pumps are known for their reliability and low maintenance requirements. Unlike traditional heating and cooling systems that rely on combustion, geothermal ground source heat pumps have fewer moving parts and do not involve high-temperature operations. Regular maintenance, such as checking the loop system and ensuring that the heat pump¨s filters are clean, is typically sufficient to keep the system running efficiently.

  

  5. Geothermal Heat Pumps Are Noisy

  

  Some people believe that geothermal heat pumps are noisy and disruptive. However, geothermal energy heat pumps are among the quietest HVAC systems available. Since the primary components of a geothermal ground source heat pump are located underground or in a basement, noise levels are significantly lower compared to traditional systems with outdoor compressors. The indoor units are designed to operate quietly, ensuring that your home remains peaceful and comfortable.

How do security X-ray machines distinguish between explosives, drugs, guns, knives and other dangerou

  As the economy develops more and more, people’s living standards improve and their requirements for security are getting higher and higher. At the same time, due to factors such as wars in the third world, terrorists and extremists, domestic airports, railway stations and mass gathering places are equipped with more and more high-end security equipment.contemporaneity security screening machine Our competitors have not made large-scale improvements, so we should get ahead of everyone in the project. https://secuzoan.com/

  

  The performance of security inspection equipment has improved a lot compared with previous years. Security inspection X-ray machines are essential equipment for security inspection channels. How this equipment can distinguish dangerous items such as explosives, drugs, guns, knives, etc., we need to start with the principle of security inspection machines.

  

  x-ray machines

  

  ZA5030A

  

  The security inspection machine is an electronic device that uses a conveyor belt to send the checked luggage into the X-ray inspection channel to complete the inspection. When the luggage enters the X-ray inspection channel, it will block the package detection sensor, and the detection signal will be sent to the system control part, generating an X-ray trigger signal, triggering the X-ray source to emit an X-ray beam.

  

  The X-ray beam passes through the inspected objects on the conveyor belt, and the X-rays are absorbed by the inspected objects and finally bombard the semiconductor detector installed in the channel. The detector converts the X-rays into signals, and these very weak signals are amplified and sent to the signal processing chassis for further processing. After these signals are processed, they are displayed on the display screen.

  

  ”No matter how many layers a package has, X-rays can penetrate it and display the items in the package layer by layer.” Dangerous items are identified by different colors. Multi-energy colored organic matter is displayed in orange, inorganic matter is displayed in blue, and mixtures are displayed in green. High energy/low energy are switched to display. High energy displays metals, etc., and low energy displays non-metals. In the image display system, the X-ray sensor L-shaped photodiode array detector (multiple energies are optional), 12-bit depth, high penetration display increases the brightness of dark areas in the image, so that items hidden behind highly absorbent objects are clearly displayed. Low penetration display increases the contrast of low absorption (easy to penetrate) objects, making easy to penetrate objects clearer; therefore, the X-ray security inspection machine is not a decoration, but actually undertakes the work of protecting railway safety.

  

  So how does the security inspection machine detect these dangerous items?

  

  1. Image monitoring method

  

  Image monitoring method directly determines the object from the X-ray image configuration. Therefore, whether the object is suspicious depends on the image on the monitor or display. Unusual objects or objects with different shapes that appear on the display or monitor should be considered suspicious objects. Objects that cannot be accurately identified should also be considered suspicious objects and need to be carefully investigated. The image can be located and analyzed as needed.

  

  2. Color analysis method

  

  The color analysis method is to identify the type of material based on the different colors that different materials show under the x-ray image. The various colors that appear on the monitor are a reflection of the density, quality and quantity of the object. Therefore, the quality of the object can be evaluated based on the depth of the image color.

  

  Light yellow is generally the color of a single piece of clothing, thin plastic, and a small amount of paper.

  

  Orange is generally the color of soap, soap, explosives, drugs, wood, leather products, etc.

  

  Dark orange is generally the color of a large number of books, paper, RMB, high-concentration liquids, large bags of rice and flour, etc.

  

  Blue is the color of inorganic substances such as copper, iron, and zinc. Thick cables, stun guns, bullets, gun barrels, guns, and knives show different shades of blue. Green is the color of mixtures, stainless steel products, cables, etc. show different shades of green. Red is the color of impenetrable objects, mostly heavy metals and thick objects.

Seamlessly Connect Power Adapter Europe to UK for Hassle-Free Travel

  Traveling can be an exciting experience, but it often comes with the hassle of dealing with different electrical outlets and power adapters. Seamlessly connecting your devices from Europe to the UK can be a challenge, but with the right power adapter, you can eliminate this inconvenience and enjoy a hassle-free journey. In this article, we will explore the importance of a power adapter, its features, and how it can simplify your travel experience.So, I believe silicone baby teether In the future, it will be promising to create a miracle belonging to the industry. https://lxsiliconeparts.com/

  

  Seamlessly Connect: Power Adapter Europe to UK for Hassle-Free Travel(夕1)

  

  1. Understanding the Need for a Power Adapter

  

  When traveling from Europe to the UK, you will encounter a different electrical system, which means that your European devices may not be compatible with the UK power outlets. This is where a power adapter becomes essential. A power adapter allows you to plug your European devices into UK power outlets, keeping them charged and functional throughout your trip.

  

  2. Key Features of a Power Adapter

  

  When choosing a power adapter for Europe to UK travel, it is important to consider its key features:

  

  - Universal compatibility: Look for a power adapter that is compatible with a wide range of devices, including laptops, smartphones, tablets, and cameras. This will ensure that you can easily charge all your essential devices without any compatibility issues.

  

  - Compact and lightweight: Opt for a power adapter that is compact and lightweight, making it easy to carry in your travel bag without occupying much space or adding unnecessary weight.

  

  - Multiple plug options: A power adapter with multiple plug options will allow you to connect your devices to different types of power outlets in the UK. Look for adapters that include UK, EU, and US plugs for maximum convenience.

  

  - Built-in safety features: Safety should be a priority when choosing a power adapter. Look for features such as surge protection, overcurrent protection, and short circuit protection to ensure the safety of your devices.

  

  3. Benefits of a Power Adapter for Europe to UK Travel

  

  Using a power adapter specifically designed for Europe to UK travel offers several benefits:

  

  - Convenience: With a power adapter, you can easily charge your devices without worrying about compatibility issues or finding the right adapter at your destination.

  

  - Cost-effective: Instead of buying new chargers for your European devices, a power adapter allows you to use your existing chargers, saving you money.

  

  - Versatility: A power adapter enables you to use your European devices not only in the UK but also in other countries that use the UK electrical system.

  

  4. How to Choose the Right Power Adapter

  

  To ensure a seamless and hassle-free travel experience, follow these tips when choosing a power adapter:

  

  - Research: Before purchasing a power adapter, research the specific electrical requirements of the UK and ensure that the adapter you choose is compatible with those standards.

  

  - Reviews: Read reviews and ratings of different power adapters to determine their performance, durability, and user satisfaction.

  

  - Quality: Invest in a high-quality power adapter to ensure its durability and reliability throughout your travels.

  

  5. Conclusion: Enjoy Hassle-Free Travel with a Power Adapter

  

  A power adapter specifically designed for Europe to UK travel is a must-have accessory for any traveler. It simplifies your travel experience by allowing you to seamlessly connect your devices to UK power outlets. With its universal compatibility, compact size, and multiple plug options, a power adapter ensures that you can keep your devices charged and stay connected throughout your journey. Invest in a reliable power adapter and travel with peace of mind, knowing that you can effortlessly power your devices wherever your adventures take you.

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

  Anti-loosening nut is a nut, which is a part that is screwed together with a bolt or a screw for tightening. It is an original part required by all production and processing equipment. Anti-loosening non standard nut is a part that tightly connects mechanical equipment together. With the help of the inner thread, anti-loosening nuts and screws of the same specifications can be connected together. The following is a detailed introduction to several methods of preventing anti-loosening nuts from slipping.With the upsurge of industry development, non-standard fasteners price The expressive force in the market has also been very good, bringing many brand-new high-quality experiences to users. 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.

What Is a Swimming Pool Air Source Heat Pump

  The swimming pool heat pump is an air source heat pump designed by the air energy manufacturer specifically for swimming pools. Its working principle is the same as that of ordinary air source heat pumps. The difference between the two is:The above conclusions show that Inverter heat pump To a great extent, it can bring new vitality to the market and make the industry develop well. http://mangoenergyheatpump.com

  Ordinary air source heat pumps are mainly used for domestic hot water heating, while swimming pool air source heat pumps are dedicated to constant temperature heating of swimming pools. The heat exchanger is made of special pure titanium tubes with good corrosion resistance. Because swimming pools need to be cleaned by adding chemicals, ordinary heat pumps will quickly corrode the heat exchanger. In the past, swimming pools liked to use coal/gas/oil, electric boilers and other equipment to provide hot water, but in recent years, with the country’s attention to environmental protection and other issues, coupled with the shortcomings of coal/gas/oil, electric boilers and other equipment themselves, such as unsafe, high pollution and high cost, more and more swimming pools and swimming pools have begun to choose new hot water equipment to provide hot water for swimming pools. Among them, swimming pool air source heat pumps have become the object of constant temperature pursuit of villa swimming pools, swimming pools, and fitness clubs.

  

  What are the advantages of swimming pool air source heat pumps?

  

  1. Safe, environmentally friendly and pollution-free. No coal or oil is consumed, so there is no need to worry about coal prices or fire or explosion safety issues. Moreover, there is no pollutant emission to the environment during use, no environmental pressure, and it meets national environmental protection requirements. There is no need to face annual inspections by boiler-related departments.

  

  2. It is more energy-efficient and saves more money. The heating efficiency of ordinary air-energy heat pumps is generally 400%, which is four times that of ordinary electric water heaters. However, because the swimming pool air-energy heat pump can control the temperature at only 28<C, which is lower than the outlet water temperature of ordinary air-energy heat pumps, the heating efficiency is as high as 520%, which is more energy-efficient.

  

  3. Accurate temperature control and more comfortable. The air-energy swimming pool constant temperature system has a wider temperature operation range (ambient temperature range -25-43<C, water temperature control range 20-55<C), and can automatically adjust the flow rate according to ambient temperature, water temperature and other data to ensure stable and efficient operation of the unit. And it is not affected by natural climate such as wind, light, rain, and snow, and can achieve constant temperature of the swimming pool throughout the year.

Streamlined Power Solutions Exploring the 15.6W Vertical Power Adapter

  In today’s dynamic tech landscape, the demand for efficient and versatile power solutions continues to grow. The 15.6W Vertical Power Adapter emerges as a robust option, combining functionality with ergonomic design for enhanced usability.Therefore, customized silicone mould Only then will more and more pump owners cheer for it and spread the value and function of the brand. https://lxsiliconeparts.com/

  

  Design and Ergonomics

  

  The 15.6W vertical power adapter is distinguished by its vertical orientation, optimizing space utilization and reducing footprint on desks or power strips. This design feature not only enhances aesthetics but also facilitates easier cable management, keeping workspaces tidy and organized.

  

  Streamlined Power Solutions: Exploring the 15.6W Vertical Power Adapter

  

  Power and Performance

  

  With an output of 15.6 watts, this adapter delivers reliable power to a variety of devices, including laptops, monitors, and peripherals. It ensures efficient charging and operation, supporting seamless productivity whether at home, in the office, or on the go. Its versatile compatibility makes it a valuable addition to any tech setup.

  

  Efficiency and Sustainability

  

  Efficiency is a hallmark of the 15.6W Vertical Power Adapter, designed to meet energy efficiency standards while minimizing power consumption. This eco-friendly approach aligns with sustainable practices, contributing to reduced energy costs and environmental impact over its lifecycle.

  

  User-Friendly Features

  

  Equipped with user-friendly features such as overcurrent protection and heat dissipation mechanisms, the 15.6W Vertical Power Adapter prioritizes safety and reliability. These safeguards ensure devices are charged safely and efficiently, prolonging their lifespan and minimizing risks associated with power fluctuations.

  

  Streamlined Power Solutions: Exploring the 15.6W Vertical Power Adapter(夕2)

  

  Applications and Versatility

  

  From powering laptops during presentations to supporting multimedia setups in entertainment centers, the 15.6W Vertical Power Adapter proves versatile across various applications. Its adaptability extends to different industries, including education, healthcare, and corporate environments, where reliable power is essential for uninterrupted operations.

  

  Conclusion

  

  The 15.6W vertical power adapter represents a blend of innovation and practicality, catering to the diverse needs of modern users. Its vertical design optimizes space, while robust power delivery and eco-friendly features ensure efficient performance and sustainability. Whether enhancing productivity in professional settings or facilitating entertainment at home, this adapter stands as a reliable solution for streamlined power management.

  

  Embrace the efficiency and reliability of the 15.6W Vertical Power Adapter to elevate your tech experience and meet the demands of today’s digital world seamlessly.

What Are the Differences between Cold Heading and Cold Extrusion

  Cold heading and cold extrusion are basically deformation processes under the same conditions, but they are different in operation. Cold heading is a forging deformation of smaller workpieces and is often used in the fastener industry. Cold extrusion is an extrusion deformation of larger workpieces and has a wide range of uses.contemporaneity non standard fasteners Our competitors have not made large-scale improvements, so we should get ahead of everyone in the project. https://jieruifasteners.com/

  

  1. What is cold extrusion

  

  Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity and, at room temperature, a punch fixed on the press is used to apply pressure to the blank to cause the metal blank to undergo plastic deformation to produce parts. Obviously, cold extrusion processing relies on the die to control the flow of metal and relies on the large-scale transfer of metal volume to form parts. In terms of extrusion equipment, my country has the ability to design and manufacture extrusion presses of various tonnages. In addition to using general mechanical presses, hydraulic presses, and cold extrusion presses, friction presses and high-speed and high-energy equipment have also been successfully used for cold extrusion production.

  

  At present, cold extrusion technology has been widely used in industrial sectors such as fasteners, machinery, instruments, electrical appliances, light industry, aerospace, shipbuilding, and military industry, and has become one of the indispensable and important processing methods in metal plastic volume forming technology. With the advancement of science and technology and the continuous improvement of product technical requirements in the automobile, motorcycle, household appliances and other industries, cold extrusion production technology has gradually become the development direction of refined production of small and medium-sized forgings.

  

  

  2. What is cold heading

  

  Cold heading is one of the new processes of metal pressure processing with little or no cutting. It is a processing method that uses the plastic deformation of metal under the action of external force, and with the help of a mold, the metal volume is redistributed and transferred to form the required parts or blanks. The cold heading process is most suitable for the production of non standard fasteners such as bolts, screws, nuts, rivets, and pins. The commonly used equipment for cold heading is a dedicated cold heading machine. If the production volume is not too large, it can also be replaced by a crank press or a friction press.

  

  Cold heading technology has high productivity, good product quality, and greatly reduces material consumption, reduces production costs, and improves working conditions. Therefore, it is more and more widely used in mechanical manufacturing, especially in the production of standard fasteners. Among them, the most representative products produced by multi-station cold heading machines are bolts, screws and nuts.

  

  3. Are cold heading and cold extrusion the same thing?

  

  Cold heading and cold extrusion are basically deformation processes under the same conditions, but they are different in operation. Cold heading is a forging deformation of smaller workpieces and is often used in the fastener industry. Cold extrusion, on the other hand, is an extrusion deformation of larger workpieces and is widely used; cold heading is equivalent to a branch of cold extrusion. Simply put, in the process of making bolts, hexagonal head forming is cold heading, and rod diameter reduction is cold extrusion (positive extrusion). Non-cut hexagonal flange bolts (multi-station forming) have both cold heading and cold extrusion. The front shaping of hexagonal nuts is only cold heading, and the hole extrusion in the back process is cold extrusion (positive and negative extrusion).

The Process of Customizing Non-standard Nuts

  Non-standard nuts have always been popular with users in the market. Because there is no fixed standard, non-standard nuts are customized according to customer needs and sizes. So what is the process of customizing non-standard nuts?According to related reports, non standard fasteners To a large extent, it leads the changes of market conditions. https://jieruifasteners.com/

  

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

  

  custom non standard nuts.jpg

  

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

  

  non standard fasteners.jpg

  

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

  

  nut mold supplier.jpg

  

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

James the American billionaire. Crown died in a car accident on his 70th birthday

  According to US media reports, on June 25, 2024, American billionaire James. Crown died in a car accident on his 70th birthday. Current U.S. President Joe Biden expressed his condolences to Krone. It is regrettable that the board member of jpmorgan Chase, who was once popular in the United States financial circle, ended his career in a car accident. However, many people have expressed doubts about this, questioning whether there was a problem with the driver of Krone’s bodyguard, which led to his accident.In combination with these conditions, business bodyguard It can still let us see good development and bring fresh vitality to the whole market. http://huanyubodyguard.com/

 

  

  In fact, on Krone’s 70th birthday, he was driving himself, and he has not hired a chauffeur bodyguard to drive since his old age. If the driver’s bodyguard really drove, maybe there wouldn’t have been an accident. Unlike other billionaires in the United States, Mr. Krone doesn’t spend much money on personal security, and he does everything himself, unlike other billionaires in the United States who have multiple bodyguards around him to provide protection. However, a billionaire without private bodyguard protection, a car accident is fatal, which shows that hiring private bodyguards, especially an experienced driver bodyguard, is a great help to the rich. Just like many rich people in China, they will hire bodyguard drivers to drive, and the drivers of Huanyu Brothers Bodyguard company in Shenzhen, China, often provide a full range of bodyguard services for rich people in China, including bodyguard driving services.

  

  In the new era of “car accident is fierce than tiger”, the situation of car accidents in various countries is very common, for the wealthy class of the United States and China, to buy high-quality cars, and can not rule out the risk of car accidents, if you want to avoid car accidents, you need to improve driving skills, in addition, you can also hire driver bodyguards to drive, so that you can reduce the probability of car accidents.