Several commonly used wood lacquers
Wood lacquer is mainly divided into two categories: furniture lacquer and floor lacquer. 1. Nitrocellulose paint: There are two kinds of nitro varnish and nitro solid paint. The varnish varnish is used for transparent painting of indoor furniture, and the nitro solid paint is used for opaque painting. It is dried and formed into a film by volatilization of solvent. It is characterized by fast drying, high hardness, wear resistance and water resistance, but the construction process is complicated, and the heat resistance, cold resistance and alkali resistance are not high. Second, alkyd paint: mainly used to paint interior doors and windows, mid-range furniture. It is characterized by good gloss, adhesion, durability and insulation, but the paint film is soft, the drying speed is slow, it is not resistant to water and heat, and it can not be polished, so it is not suitable for external use. Third, polyurethane resin paint: mainly used for floor paint, high-grade furniture, piano surface coating. It is characterized by bright film, good abrasion resistance, strong adhesion, solvent resistance, corrosion resistance, water resistance, cold resistance and high hardness. The disadvantage is that the drying is slow, the gloss retention and the color retention performance are poor. Commonly used are polyurethane varnish and polyurethane solid paint. 4. Polyester paint: It is mainly used for surface coating of high-grade furniture, piano and sewing machine table. It is characterized by rich and thick paint film, high gloss, gloss retention and transparency. It can fully express wood grain, high hardness of paint film, good wear resistance, light retention and moisture retention, and high heat resistance and cold resistance. Water resistance, chemical resistance, and temperature resistance. The disadvantage is that the adhesion is not good, the coating film is hard and brittle and cannot withstand too heavy impact force, and is not easy to repair. 5. Acrylic resin lacquer: It is a high-grade wood lacquer. High-gloss lacquer can be made by adding fluorescent pigment. It is characterized by light color, good color retention, good resistance to ultraviolet light and heat resistance, bright and hard paint film, strong adhesion and convenient construction. The disadvantage is that the paint film is brittle and the cold resistance is poor.
Car shock absorbers are vital components of a vehicle's suspension system. They help to improve the overall driving experience by reducing vibrations and impact caused by bumps and uneven surfaces on the road. In this article, we will explore what shock absorbers are, how they work, and why they are important.
What are car shock absorbers?
A car shock absorber is a device that is designed to absorb or dampen shocks and vibrations caused by the movement of the vehicle's wheels. They are typically located between the suspension and the frame of the car and are made up of a cylinder filled with hydraulic fluid and a piston that moves up and down within the cylinder. When the wheel hits a bump on the road, the shock absorber's piston is forced up, compressing the hydraulic fluid inside the cylinder. The fluid then flows through small valves or orifices, dissipating the energy and slowing the movement of the piston.
How do car shock absorbers work?
The main purpose of shock absorbers is to reduce the amount of energy that is transferred to the car's body and the passengers inside the vehicle. As mentioned earlier, when the wheel hits a bump, the shock absorber compresses, slowing down the movement of the wheel and preventing it from bouncing back up. This allows the vehicle's tires to maintain contact with the road surface and ensures that the vehicle remains stable while driving.
Why are car shock absorbers important?
Here are a few reasons why car shock absorbers are important:
Improved safety: Shock absorbers help to improve the safety of a vehicle by keeping the tires in contact with the road surface, which reduces the risk of accidents caused by loss of control.
Improved comfort: Without shock absorbers, passengers would feel every small bump and jolt in the road. Shock absorbers help to improve the overall comfort of the ride by reducing the impact of these bumps.
Extended tire life: Shock absorbers also help to reduce the wear and tear on the vehicle's tires by preventing excessive bouncing and vibration.
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In summary, car shock absorbers are an essential component of a vehicle's suspension system. They not only help to improve safety but also provide a comfortable and smooth ride. Regular maintenance and replacement of worn-out shock absorbers are crucial for a vehicle's overall performance and longevity.