Mild Flat Steel Auto Spring Flat Bar Cold Drawn/Hot Rolled Flat Bar Various Sizes
Flat steel refers to steel with a rectangular cross-section and a slightly blunt edge. It is a simple section steel. Flat steel can be finished steel, and can also be used as blanks for welded pipes and thin slabs for stacked sheets. Flat steel is divided into two types according to its shape: flat spring flat steel and single-sided double-groove spring flat steel.
Features and advantages of flat steel:
1. The product specifications are special. The specification pitch is relatively dense, which can meet the needs of users. It can be used instead of the middle plate and can be directly welded without cutting.
2. The surface of the product is smooth. In the process, the high-pressure water descaling process is used for the second time to ensure that the surface of the steel is smooth and clean.
3. The sides are vertical and the water chestnuts are clear. The two-pass vertical rolling in the finishing rolling ensures good verticality of both sides, clear corners, and good edge surface quality.
4. The size of the product is accurate, with a three-point difference, and the same grade difference is better than the steel plate standard; the product is straight and the shape is good. The finishing rolling adopts continuous rolling process and automatic looper automatic control to ensure that the steel is not piled up and not drawn. good degree. Cold shearing and cutting, high precision in length setting.
5. The product material adopts the national standard, which is the same as the steel plate. Quality and technical standards are organized according to YB/T4212-2010 standards (Q345B/Q235B refer to GB/T1591-94 and GB/T700-06 standards respectively).
6. The flat steel is rolled with negative deviation, but it is delivered according to the actual weight, and the utilization rate is 1-5% higher than that of the steel plate.
7. Flat steel can be produced in fixed thickness, fixed width and fixed length according to user needs. The products produced by Shanqi Steel have been used in steel structure manufacturing, machinery manufacturing, automobile industry, mining machinery, hoisting machinery and other industries.
Process method of spring flat steel for automobile
Spring flat steel is made by converter smelting process. Compared with the existing technology, it has the following advantages and positive effects:
1. Using converter to smelt flat steel, mainly using molten iron as raw material, there are few harmful elements in molten iron, and the quality of the produced flat steel is guaranteed.
2. Due to the high yield and low power consumption, the cost per ton is lower than that of electric furnaces.
3. The molten steel is directly cast into small billets, which omits the billeting process and reduces the cost.
4. The continuous casting billet has a high set-to-length ratio, which can ensure the flat steel set-to-length ratio and meet the needs of users.
