Almost all car friends have encountered the problem of scraping the paint. The paint is scratched seriously and it is necessary to repair it. Then the problem comes. What is the difference between the paint sprayed in the 4S shop and the original paint on the factory? Who is better? After reading the following content, you will naturally understand it. Original paint: In the car factory, after the car body is welded, it should be painted. The lacquering process is divided into three steps: 1 Electrophoresis, medium coating - first immerse the light body in the paint tank, fully fully immerse the primer, remove and dry. 2-color paint - the painted body is sent to the dust-free workshop, and the paint is sprayed by the electrostatic painting process. 3 varnish - spray a layer of varnish on the paint. Ordinary vehicles, the paint is finished after the paint is finished. High-end luxury models, will also spray a layer of varnish on the paint, the body shine is more beautiful. Finally, the body is dried in a paint booth with a temperature of about 200 °C. 4S shop touch up paint: In the 4S shop to make up the paint, the difference from the car factory is that when the paint is applied, it cannot be electrophoresed as in the OEM. The 4S shop touch up paint is specially repaired and the baking temperature of the 4S shop refinish paint is relatively low, around 70-80 °C. The color fastness of the paint film is different for different baking temperatures. In addition to the difference in baking temperature, the paint painting of the automobile factory is a whole piece of machine spraying with high precision and consistent color. The paint sprayed in the 4S shop is temporarily adjusted and sprayed by a spray gun. The processing method and color are still different. Metal alloy powders are commonly used in thermal spray processes to coat surfaces with a protective or functional layer. These powders are typically made by combining different metal elements in specific compositions to achieve desired properties such as corrosion resistance, wear resistance, or thermal conductivity. HVOF PTA Powder,Metal Spray Powder,Flame Spray Powder,Metal Alloy Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.egretgeotools.com
Some commonly used metal alloy powders for thermal spray include:
1. Nickel-based alloys: These alloys are known for their excellent corrosion resistance and high-temperature strength. They are often used in applications where resistance to oxidation and wear is required, such as in gas turbine components.
2. Cobalt-based alloys: Cobalt alloys are known for their high hardness and wear resistance. They are commonly used in applications where resistance to abrasive wear and high temperatures is required, such as in the aerospace and power generation industries.
3. Stainless steel alloys: Stainless steel alloys are used for their corrosion resistance and high-temperature strength. They are often used in applications where protection against corrosion and oxidation is required, such as in chemical processing equipment.
4. Titanium-based alloys: Titanium alloys are lightweight and have excellent corrosion resistance. They are commonly used in applications where a combination of high strength, low density, and corrosion resistance is required, such as in the aerospace industry.
These metal alloy powders can be applied using various thermal spray techniques, such as flame spraying, arc spraying, plasma spraying, or high-velocity oxygen fuel (HVOF) spraying. The specific choice of alloy powder and thermal spray process depends on the desired coating properties and the application requirements.