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There are many kinds of wheels according to the diameter, and there are also many kinds according to the width.Then, many models can be divided into different diameters, different widths, and different materials.Some car owners think that the original tires are not advanced enough and want to upgrade. They often widen, reduce the flat ratio, increase the diameter, and change the material. At this time, if you have to change the wheels, it is called a modified wheel. 1. What types of wheels are there? According to the surface treatment process of the wheel rim , different methods will be adopted, which can be roughly divided into two types: paint and electroplating. 1. Painted wheels are moderately priced and durable. The wheels of ordinary models are less considered in appearance, and good heat dissipation is a basic requirement. The process basically adopts paint treatment, that is, first spraying and then electric baking. The cost is relatively economical, the color is beautiful, and the retention time is long. Even if the vehicle is scrapped, the color of the wheels remains the same. The surface treatment technology of the wheels of many large-scale models is paint, and some fashion-forward and dynamic color wheels also use paint technology.Such wheels are moderately priced and have complete specifications. 2. The price difference between electroplated wheels is large. Electroplating wheels are divided into silver plating, electroplating and pure electroplating.Although the color of electroplated silver and electroplated wheels is bright and vivid, the retention time is short, so the price is relatively cheap, and it is liked by many young people who pursue freshness. Pure electroplated wheels, the color is maintained for a long time, which can be said to be of high quality and high price.Some high-end cars will be equipped with pure electroplated wheels as standard in the original factory. Wheels can be divided into two categories according to the material: steel wheels and alloy wheels. 3. The most important advantage of steel wheels is that the manufacturing process is simple, the cost is relatively low, and the ability to resist metal fatigue is very strong, which is what we commonly call cheap and strong.However, the disadvantages of steel wheels are relatively prominent, that is, the appearance is not beautiful enough, the weight is large, the inertial resistance is large, the heat dissipation is relatively poor, and it is very easy to rust. 4. Alloy wheels have light weight, low inertial resistance, high production accuracy, small deformation and low inertial resistance when rotating at high speed, which is conducive to improving the straight-line driving performance of the car and reducing the rolling resistance of the tires, thereby reducing fuel consumption. The thermal conductivity of the alloy material is about three times that of steel, and the heat dissipation is good. It can play a certain role in the thermal attenuation of the vehicle's brake system, tires and brake system. At present, the alloy wheels of original cars on the market are mainly aluminum alloy. Of course, many modified wheels will choose chromium, titanium and other elements as basic materials in order to meet certain special requirements and visual improvement. However, compared with steel wheels, the price of alloy wheels is much more expensive, so often in many low-end original cars, steel wheels will appear on low-end models, while alloy wheels are standard for high-end models.

The structure of the automobile rim is simple and can be divided into two parts: 1.Spokes 2.rims.To be precise, the spokes of almost all automobile wheels are currently hollow. The main reasons why they are all hollow designs are： 1.Heat dissipation requirements: If the car is driving for a long time, it will make the wheels of the car very hot; in addition, the braking system will generate a lot of heat.If these heat cannot be released in time, it will cause a big problem for the driving safety of the car and may cause the tires to burst.The hollow design increases the contact area between the spokes of the rim and the air, which is conducive to heat dissipation. 2.Reduce the weight of automobile wheels : As we all know, the lighter the mass under the spring, the better the performance of the automobile, the higher the acceleration and braking, and the higher the fuel efficiency.The hollow design greatly reduces the weight of the wheel rim, and the aluminum alloy also provides sufficient strength for the spokes to support the rim. 3.Material savings: Of course, the hollow design saves the aluminum alloy materials used in wheel rim manufacturing, reduces the production cost of automobile wheel manufacturers, naturally reduces the cost of host manufacturers, and consumers also enjoy the benefits.Below is a pile of aluminum rods.It's all money. 4.More beautiful: Now that Internet celebrities have seen the level of appearance, the wheels are the same.At present, automobile manufacturers are also paying more and more attention to the axle shape design of the wheel rim. Good automobile wheel design can improve the integrity of the automobile shape design and play the role of finishing touch.Hollow spokes can be made in various shapes to meet the needs of different consumers.

Sports car tires are thinner because they can have a stronger grip. When the power output of the vehicle increases, the grip also needs to increase, otherwise it is difficult to cope with the output torque.If you want the grip of the tire to become stronger, you can widen the tire, but this will increase the fuel consumption of the vehicle. Sports car tires generally do not use a way to widen the tires to enhance grip. It is to make the diameter of the rims larger and the length of the rim banners longer, so that the rubber raw materials needed on the tires will become less, the thickness of the tires will become thinner, and the engine power will have more room for improvement, so that the speed of the vehicle can be increased. Sports car tires are relatively thin and are not suitable for household vehicles. Household vehicles are more pursuing quiet and comfortable performance, but if the tires are relatively thin, there will be greater tire noise when driving, and the ride comfort will be greatly reduced.Thin tires are generally suitable for vehicles with strong sports performance, so that the handling provided will be more stable, and when driving at high speed, it will have relatively good performance. Thin tires and low flatness have the same meaning. The lower the flatness of the tire, the stronger the handling. If the flatness of the tire is relatively low, then its sidewall will be relatively solid. When the vehicle is turning, the tire is not easy to deform. Tires with low flatness will have a greatly reduced shock absorption effect, so that comfort will plummet, so sports cars will have a loud roar when driving, and the overall performance on slippery roads is relatively poor. When driving a sports car on rainy days, pay extra attention to safety.

Because of thermal expansion and cold shrinkage, it is okay to keep the tire pressure of a car at 2.3 bar or even to 2.5 bar in winter, but the standard tire pressure specified by each car is different, so the specific requirements depend on the car's user manual, but the tire pressure in winter is 0.1 to 0.2 bar higher than the normal setting. The tire pressure of the car must be maintained within the prescribed standard range. If it is too high or too low, it may cause problems in the driving of the car. For example, the tire pressure is too high, which will reduce the adhesion of the car tires , feel the vibration of the steering wheel, and affect the drainage and service life of the car tires. If the tire pressure of the car is too low, the resistance during operation will increase, resulting in an increase in the fuel consumption of the car.It will also cause the car tires to become very soft and the friction will become greater. If we are driving at a fast speed, a flat tire may also occur, which will have a greater impact on the safety of the vehicle. What should I pay attention to when using tires in winter？ 1. First of all, we must check the car tires daily, because the temperature is relatively low, which may affect the hardness of the tires, causing the wear to be slightly more serious than in other seasons. Regular inspections can reduce the probability of accidents； 2. Because of icy roads and other conditions, there may be some ice ballast or stones stuck in the tire pattern. We must check in time, otherwise it may cause a flat tire； 3. We should pay attention to detecting the tire pressure of the car at any time. Once it is found to be too high or too low, we must take adjustment measures in time to avoid more serious situations.

As we all know, wheels are an important part of automobiles.At present, aluminum alloy wheels are a commonly used automobile wheels.Compared with traditional wheels, aluminum alloy wheels have certain advantages.Therefore, automotive steel experts will introduce the advantages of aluminum alloy wheels. 1.Fuel saving For wheels of the same size, aluminum alloy wheels are 2kg lighter than steel wheels, and a car can save 10 yuan kg in weight. At the same time, every time the car is reduced by kg, it can save 20L of gasoline a year. Aluminum alloy wheels are more expensive than ordinary steel wheels, but the fuel cost saved per car running to 20,000 km is enough to offset the cost. 2.Improve the service life of the engine According to the load and power curve of the automobile engine, when the load increases to a certain extent, its power will decrease, which means that at this time, it will be more difficult to reduce the engine load, natural failure and extend the service life. 3.Good heat dissipation The heat transfer system of aluminum alloy wheels is three times that of steel, which has a good heat dissipation effect.When driving at high speed, the tires can also be maintained at the appropriate temperature, so that the brake drum and tires are not easy to age, increase life, and reduce the chance of tire bursting. 4.Rugged and durable The impact resistance of aluminum alloy wheels.The tensile and thermal strength are higher than that of steel wheels, which are also aluminum alloys in the national defense industry.One of the reasons why aviation technology plays an important role. 5.Beautiful Generally, steel wheels will be limited by production, the form is monotonous and rigid, and there is a lack of change.Aluminum alloy wheels have various designs and are shiny.The color effect is better, thereby improving the value and beauty of the truck crane.

There are many parameters involved in replacing the wheels. It is best for interested owners to do their homework first so as not to cause hidden dangers to safety. 1. Center Bore (CB) Refers to the size of the center hole of the hub.Although wheels with different values from the original factory can be installed through positioners, this is not recommended for safety reasons. 2. Section circle diameter (PCD) For example, a hub with a diameter of 5x120mm means that it has 5 positioning bolts, and the diameter of the circle they form is 120mm.This value should also comply with the original factory. 3. Offset Also known as the ET value, this value is positive, indicating that the fixed surface of the hub is outside the center surface, and vice versa, it is within the center surface.The deviation value of a car is generally positive, and this value has a great impact on the stability of the car and the traceability of cornering. It is determined by the original factory and cannot be changed without special needs. 4. Diameter and width The diameter determines the size of the rim .Since the speedometer reading of the car is measured based on the speed of the wheel, the wheel diameter is too large to cause the speedometer reading to be too small. Unknowingly, you are speeding.Excessive wheel diameters will also rub against the wheel arches and fenders.Therefore, it is better to upgrade the wheels to be 1 inch larger than the original factory, no more than 2 inches at most, and to match thin tires to ensure that the size of the entire wheel is the same as before the upgrade. The width affects which tires are selected after the upgrade. Tires that are too wide will reduce the starting speed and consume more fuel.The correspondence of common values is: 185mm wide tires correspond to 5-inch wide rims; 195mm corresponds to 6 inches; 205mm corresponds to 6.5 inches; 215 corresponds to 7 inches.

Vehicle wheels cannot be replaced without permission. Even if the tires look simple in structure, when the size of the tires changes, the original factory data on the car will be changed accordingly. After all, only the tires are in contact with the road. Moreover, the most obvious impact of replacing the wheels is the mileage, which will become smaller than the usual normal driving data, thereby disrupting the maintenance cycle judgment originally recorded by the vehicle, so it is not recommended to replace the car wheels casually. In order to replace large-size wheels, in order to achieve the value closest to the outer diameter of the original tire, it is necessary to replace the tires with a lower flat ratio. The direct result of the low flat ratio is that the road sense will be richer, which can increase the driving experience to a certain extent. But on the contrary, the richness of the road will also be more bumpy, because the flatness ratio is reduced, the tire wall is thinner, and the shock absorption and cushioning capacity will decrease. Similarly, the tire wall becomes thinner. If you pass by with a big bump, if you don't slow down and pass like you did with the original tire, the tire will usually bulge.

With the development of society, people's demand for automobiles is increasing. Automobile wheels are an important part of automobiles, and the performance of the wheels is directly related to the performance of the vehicle. The surface treatment method of magnesium alloy grinding wheel includes grinding the surface of the workpiece of the magnesium alloy grinding wheel to remove oil stains, ultrasonic cleaning after anode electrophoresis; then micro-arc oxidation treatment, then spraying, cleaning, drying, and then nickel plating, washing, and drying; then cathode electrophoresis, washing, and curing; then the intermediate coating is dried by acrylic resin, the topcoat is sprayed and cured. The method first performs electrophoresis treatment on the workpiece, forms a layer of electrophoretic paint film on the surface of the workpiece, forms a uniform, smooth, and strong adhesion paint film on all parts of therim, and then forms a nickel-plated micro-arc oxide layer on the surface of the paint film, which is cured by cathode electrophoresis, intermediate paint and spraying topcoat. The surface of aluminum alloy wheels is mechanically polished, the surface is alkaline etched, and the surface of aluminum alloy wheels is roughly polished with an electrolyte with a high acid concentration; the aluminum alloy wheels are finely polished with an electrolyte with a low acid concentration.

The wheel rim, also known as the hub, is a barrel-shaped metal part. The center of the tire is mounted on the shaft. The decorative cover of the wheel is generally fixed in the center of the wheel to beautify the appearance of the wheel and protect the wheel and the central rim. At present, part of the structure of the decorative cover of the wheel is directly fixed and welded to the wheel. Today we will show you the benefits of using the aluminum alloy wheels . The connection will damage the surface finish of the wheel, the operation is more complicated, and the quality of the connection is not guaranteed; the other part is the rim decorative cover, the mounting hole on therim is fixed to the rim, for example, the decorative cover is mounted on the rim surface of the wheel through a pawl. Although the operation is simple, the installation size cannot be adjusted. The aluminum alloy wheel rim includes arim body, the middle of the rim body is provided with a mounting groove, the bottom of the mounting groove is provided with a central hole connected to the axle socket, the edge of the mounting groove is provided with a stepped hole, and the step hole of the decorative cover is provided with a step hole. The center hole of therim body is provided with a snap ring close to the outer surface of the rim. The decorative cover includes a decorative surface that matches the external shape of therim body and a mounting surface located inside the rim body. The outer side of the lower end of the buckle is provided with a protrusion, and the inner side of the lower end of the buckle is provided with an adjustment groove corresponding to the protrusion.

During the driving process, car owners will be more concerned about the paint scratches on the car, but have they ever paid attention to the scratches on the wheels?How can I repair the wheel rim if it is scratched? The specific methods for repairing the wheel rim are: 1. Check for scratches, and carefully check whether the scratches extend to the inside of the wheelrim. If not, you only need to use paint thinner and slowly wipe the surrounding scars. It can be easily repaired. 2. If the scratches on the wheel rim are deep, it will be difficult to clean up the stolen goods next to the scratches. At this time, you need to use a small toothpick to clean it thoroughly; 3. Before repairing the scratches on the wheelrim, you must first use tape to paste the place without scars, so as to avoid accidentally painting irrelevant parts; 4. After finishing the tip of the brush, apply a modified paint, and wait for the paint to shrink slightly after drying, it is best to apply it slightly protruding for easy observation; 5. After painting, wait for about a week to make it completely dry.After drying, apply it with water-resistant paper dipped in soapy water to smooth its surface; 6. After wiping with water-resistant paper, wipe it out with a mixture to make it bright, and then wax it.

Many car owners drive fast in order to have the most fun driving.Even if the road is really potholed, it doesn't slow down, and it coaxes the throttle to rush. I never knew that this behavior would hurt.Especially those explosion-proof tires with low flat-to-flat ratio, they are not only thin, but also very hard.When this kind of tire is subjected to a strong impact, it will directly transmit force to the wheel rim.This can easily cause the wheel rim to lose its roundness. Symptoms of roundness of the wheel rim： The most intuitive feeling caused by the roundness of the wheel rim on the driving experience is that the vehicle is biased, the body and steering wheel shake severely, and the degree will increase with the increase of the speed.In addition, the loss of roundness of the wheelrim will also cause a great impact on the chassis suspension, and it will seriously cause deformation or even fracture of the control arms of the suspension. How to deal with the roundness of the wheel rim： Since the current wheel rim material of automobiles is mostly aluminum alloy, once the wheelrim is out of roundness, it is extremely difficult to repair. Even if it is repaired, the wheelrim will not be in the best condition at the factory.Therefore, generally, if the wheelrim is out of roundness, it is recommended to replace it directly.

The finished aluminum alloy wheels are treated with anti-oxidation. The present invention adopts a special cast rod. After forging and heat treatment, the tensile strength is 570MPa, the yield strength is 540MPa, and the elongation is 15%. Compared with the wheels of the same specification, the weight can be reduced to 17.2kg, which greatly reduces the weight of the product. Through the anti-oxidation treatment of the product, the problem of easy oxidation of aluminum alloy wheels is effectively solved, and the requirements of existing trucks for wheels can be met. At this stage, the aluminum alloy wheels forged in our country use 6061 grade aluminum alloy (LD30). Compared with traditional steel wheels, it has the advantages of light weight, beautiful appearance, and good heat dissipation performance. However, due to the limitations of 6061 material, under the existing commonly used forging methods, its good mechanical properties can only reach the tensile strength of 350Mpa, the yield strength of 320MPa, the elongation is about 12%, and the finished product of a 6061 aluminum alloy truck wheel is about 25kg, so its tensile strength, yield strength, elongation and weight can no longer meet the requirements of existing trucks for wheels. Forging: The front surface of the cast rod is pre-forged with a pressure forging machine, forged into a bowl shape, and then the back of the cast rod is forged once with a pressure forging machine, forged into a cylindrical shape, and the cast rod is rolled into a forged billet with a spinning machine. The forged billet is in the shape of the edge of therim. Heat treatment: solid solution treatment of forged billet, solution temperature 465-475℃, solution time 2-3 hours, quenching within 15 seconds after solution treatment, quenching temperature 40-60°C, time 85-95 seconds, aging treatment after quenching, aging temperature 115-125°C, aging time 22-24 hours.