Steel plate is a flat rectangular steel material, and those delivered in long tension are called steel plates, while those delivered in rolls are called steel strips; Steel plates have great covering and wrapping properties and can be used as cover plates for house panels, bending and stamping manufacturing containers, storage tanks, packaging boxes, car shells, train cars, etc. In addition, steel plates can be cut and combined according to requirements to make various mechanical equipment parts, and can also be welded to large building structures.

The chemical properties of steel plates are easy to process and can be made into various profiles and plates. Good corrosion resistance. This material is not suitable as a structural material. Through long-term production practice and scientific experiments, people have gradually strengthened steel plates by adding alloying elements and using methods such as heat treatment, resulting in a series of steel plate materials. After a series of experimental modifications, it has become an ideal structural material, widely used in fields such as mechanical manufacturing, transportation machinery, power machinery, and aviation industry. The fuselage and compressor of aircraft are often made of aluminum alloy profiles to reduce their own weight.

What are the precautions when repairing steel plates:

1. Steel plate trimming can be carried out through methods such as the combination of hand hammers and shims, spot welding and drawing with shape repair machines, etc;

2. When using a hand hammer and pad iron for operation, the sound insulation pads on the inner side of the steel plate in many positions of the vehicle must be cleaned during operation, otherwise they will adhere to the pad iron and affect the repair quality;

3. When performing spot welding and drawing operations on damaged areas, the welding current should be minimized as much as possible to prevent excessive welding points and high temperatures;

4. When repairing steel plates, methods that do not shrink or shrink less should be adopted as much as possible. If thermal shrinkage is used, it may change the metal material and damage the original anti-corrosion layer of the steel plate;

5. When the steel plate experiences slight agitation (oil pot), a shim or leveling knife can be used to support the inner side of the part, or a suction cup puller can be used to pull the outer side. Using a rubber hammer to strike the edge or reinforcing rib near the steel plate is a very effective method;

6. When determining the necessity of using the shrinkage method, the deformed area should be brought as close as possible to the original position to avoid additional damage to the already drawn metal;

7. The repair can be solved by adding inner horizontal reinforcement ribs as support. When installing the inner reinforcement ribs, they should be installed in the middle position of other reinforcement ribs as much as possible, and the connection with the ceiling should be glued.

Steel plates have high performance and good impact resistance, and can be cut, bent, welded, etc. They can be connected to other structures through welding, plug welding, bolt connection, etc. They have the characteristics of time-saving and convenience in the maintenance process, and are widely used in metallurgy, coal, cement, power, glass, mining, building materials, brick and tile industries. Compared with other materials, they have high cost-effectiveness and have been favored by more and more industries and manufacturers.

Steel plate is a flat steel made by pouring molten steel, cooling it, and pressing it. Steel plates are flat or rectangular, and can be directly rolled or cut from wide steel strips. Steel plate belongs to high-strength steel, with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low-temperature impact toughness.

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