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• How to prevent rust from the steel plate of a car
• 3. Types of steel plates used in car bodies
• 4, 1. What are the heat treatment methods for automobile steel plates?
• 5, How thick is the automobile steel plate

How to repair the automobile steel plate

The repair methods mainly include the following five: knock-out repair, top repair, stretching repair, heating shrinkage, pleating, etc. The knock-out repair method can repair single, small and shallow bump marks and depressions for small-scale local bumps and depressions, so that the metal can be extended and deformed and restored to its original shape.

There are five main methods for automobile sheet metal repair: knock-out repair method. For a small range of local bumps and depressions, the knock-out method can be used to repair small and shallow convex marks and dents, so that the metal can be deformed and restored to its original shape.

Generally, there are five repair methods: knock-out repair, top repair, stretching repair, heat shrinkage, wrinkle, etc. The knock-out repair method can be used to repair single, small, shallow convex marks and a small range of local bumps and depressions, so as to make the metal elongate and deform, and restore it to its original state.

Well, you can use the iron sheet for repair, welding, and then use an angle grinder to sand the sheet metal for repair and painting. Thank you.

The folding method is mainly used to repair the place of stretching deformation. During construction, make aSome folds, the place where the folds are raised will be slightly lower than other places. After filling it with putty, sanding it smooth with a file and then spraying paint; heating shrinkage method.

How to prevent rust of automobile steel plate

For KD, more rust may occur during transportation or storage, In this regard, the anti-rust method is generally to use antiRust material outsourcing, anti-rust film, anti-rust paper, etc., desiccant or anti-rust powder is used inside. Of course, gas phase anti-rust liquid or oil can also be used. At present, many automobile factories use this method.

Most car manufacturers will galvanize steel sheets, which can prevent rust. Most cars use double-sided galvanized steel plates. Body paint can also prevent rust, and the electrophoretic layer and intermediate layer of body paint are used to prevent rust. The body paint consists of four layers, from the inside to the outside, there are electrophoresis layer, intermediate coating, color paint layer and varnish layer.

For the anti-rust treatment of household cars, general OEMs mainly adopt three methods. The first is to adopt anti-corrosion body materials, such as steel plates, which are generally divided into three types: double-sided galvanized steel plate, single-sided galvanized steel plate and cold-rolled steel plate. Among the three types of steel plates, double-sided galvanized plate has the highest cost and anti-rust ability. The strongest.

Normally, the reverse side that is well handled will not rust. Car sheet metal is a processing method for car maintenance, also known as cold work. If the appearance of the car body is damaged and deformed, the process of sheet metal is required. Automobile collision repair has developed from the original "smashing and pulling welding" to the secondary manufacturing and assembly of the car body.

Types of steel plate adopted by automobile body

(2) The tensile strength of high-tensile steel plate is more than 6MPa, with a destructive strength of 2 to 3 times that of ordinary soft steel plate. There are many kinds of high-tension steel plates, and composite steel plates are concerned about them. This kind of steel plate has lower yield strength than other high-tensile steel plates and has greater ductility, so it has good processing and formability.

carBody steel plate can be roughly divided into carbon steel plate, high-strength steel plate, special steel plate, etc., according to the composition added. The specific classification is as follows: - Boiling steel: 05F, 08F, 10F, 15F, 20F stamping parts and structural parts. - Calming steel: 00120 stamping parts and structural parts.

The steel plates used in the car body include hot-rolled steel plate, cold-rolled steel plate, plated steel plate, stainless steel plate, high-strength steel plate and composite steel plate, etc. Most of the steel plates for automobile sheet metal are cold-rolled thin steel plates and hot-rolled thin steel plates with a thickness of 0.6~0mm.

The materials of the car steel plate are as follows: the characteristics of the production process are divided into: hot-rolled steel plate, cold-rolled steel plate and coated steel plate. Strength angle division: ordinary steel plate (soft steel plate), low-alloy high-strength steel plate (HSLA), ordinary high-strength steel plate (high-strength IF steel, BH steel, phosphorus-containing steel and IS steel, etc.) and advanced high-strength steel plate (AHSS).

Article "target = _ blank" Specific classification of automobile body steel: boiling steel: 05F, 08F, 10F, 15F, 20F stamping parts, structural parts Calming steel: 0015 and 20 stamping parts and structural parts Special steel: 08Mn, 16 Dedicated to Mn, 06Ti and 10Ti beams.

1. What are the heat treatment methods for automobile steel plates?

1. Positive fire: Heat the steel or steel parts to an appropriate temperature above the critical point AC3 or ACM and cool it in the air for a certain period of time to obtain the heat treatment process of pearlescent body tissue.

2. Adopt positive fire, conditioning (pre-heat treatment), and quenching + low-temperature tempering (final heat treatment).(1) Positive fire: mainly to eliminate the forging stress of the blank, reduce the hardness to improve the cutting processability, and at the same time, uniformly organize, refine the grains, and prepare for the organization for future heat treatment.

3. The heat treatment methods of steel are as follows: (1) quenching. The heat treatment process of heating the steel to a certain temperature above the critical point AC3 or AC1, keeping it warm for a certain period of time, so that the entire steel tissue is transformed into austenitic, and then cooled at an appropriate speed (cooled in water and oil) to obtain martensite or lower baenite tissue is called quenching.

How much is the thickness of the automobile steel plate

1, mm. The weight of automobile steel parts accounts for 55~50%, of which plates account for about 52%, Youte steel accounts for 31%, and strips, profiles and pipes account for 16%.Note: Since the 1970s, the steel plate of the car body has been galvanized thin steel plate. Galvanized thin steel plate is widely used in automobiles because it has good corrosion resistance.

2. To 0mm. Automobile beam steel plate is mainly used to manufacture automobile longitudinal beams, crossbeams, front and rear axles, bumpers and other structural parts. The thickness of the heavy truck longitudinal beam steel plate is 0 to 0mm, which is a steel type with large demand and high performance index requirements among automobile structural steel plates.

3. In terms of the quality of the current production of the car, the thickness of the body steel plate is generally between: 0.8MM-1MM.

4. The steel plates used in the car body include hot-rolled steel plate, cold-rolled steel plate, plated steel plate, stainless steel plate, high-strength steel plate and composite steel plate, etc. Most of the steel plates used in automobile sheet metal are with a thickness of 0.6~0mm cold-rolled thin steel plate and hot-rolled thin steel plate.

5. Thin steel plate: the thickness is less than 4mm, the width is 500~1500mm, and the length is 5~4m; the width of the thin plate is 500~1500mm; the thickness is 600~3000mm.

6. The thickness of the steel plate is up to 2mm. The number of steel plates of multiple steel plate springs is closely related to the quality of the supporting vehicle. The more steel plates, the thicker and shorter, the greater the rigidity of the spring. The number of steel plates is directly related to the shock absorption effect. The appropriate steel plate thickness should be designed according to the specific model. The thickness of the plate spring of TX slag truck is 2mm.

List of the catalog of this article:

• 1,Dairy powder HS code references How to repair automobile steel plate
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