The manufacturer will analyze the bridge steel plate for you

When an appropriate amount of aluminum is added to the bridge steel plate, it is easy to form transverse cracks on the surface of slab and finished products. Attention must be paid to the matching process of continuous casting speed, cooling water volume and straightening temperature. As the bridge steel plate is refined by LF and added with Al, Nb process will increase the production cost, improve the rolling yield and sizing rate of bridge steel plate, reduce the unplanned rate and reduce the production cost.

Product introduction

The essence of bridge hollow slab is steel plate, and steel plate is a kind of flat steel with large width thickness ratio and surface area. According to the thickness, steel plate can be divided into thin plate and thick plate. The steel sheet is a steel sheet with a thickness of 0.2-4mm produced by hot rolling or cold rolling. The width of steel sheet is between 500-1400mm. According to different uses, the steel sheet is rolled with different materials. Commonly used materials include plain carbon steel, excellent carbon steel, alloy structural steel, carbon tool steel, stainless steel, spring steel and electrical silicon steel. It is mainly used in automobile industry, electrical industry, machinery industry and so on.

FAQ analysis

In the construction of the bridge, the structure of the bridge has a great impact on the overall quality. The structure of the hollow slab of the bridge, on the one hand, can ensure the firmness, on the other hand, it is lighter and more convenient to use. However, in the actual construction, the steel plate of Angang bridge will also bring a lot of trouble to the construction due to various natural or man-made factors.

1. Material problems: Generally speaking, the common problems of Angang bridge steel plate are formwork deformation, thickness of bottom plate, insufficient thickness of top plate, etc. These are mostly caused by the unqualified steel plate material of Angang bridge.

2. Construction design problems: the problems of embedded parts, especially the displacement at the position, the soil is not dense, and holes occur, which are mostly caused by the construction personnel's failure to comply with the drawings or the construction process does not comply with the regulations.

Carbon steel for bridge construction includes a3q for riveting bridge structure and 16q for welding bridge structure; Low alloy steels for bridge structures include 12mnq, 12mnvq, 15MnVNq, 16Mnq, etc. The surface of the bridge steel plate shall be free of cracks, bubbles, scabs, folds, inclusions and delamination. If the above surface defects are allowed to be cleaned, the cleaning depth shall not be greater than half of the steel thickness tolerance from the actual size, and the thickness shall be guaranteed. The cleaning place shall be smooth without edges and corners. The thickness of bridge steel plate is 4.5 ~ 50mm. Bridge steel plate is only one of the main products of our company. In addition to bridge steel plate, our company also produces and provides other types of steel plates with various types and reliable quality. We can provide different types and thicknesses of steel plates according to the needs of users. The surface of the bridge steel plate shall be free of cracks, bubbles, scabs, folds, inclusions and delamination. If the above surface defects are allowed to be cleaned, the cleaning depth shall not be greater than half of the steel thickness tolerance from the actual size, and the thickness shall be small. The cleaning place shall be smooth and free of edges and corners. Steel plates can be delivered in hot rolling, controlled rolling, normalizing, annealing, tempering, normalizing and tempering, quenching and tempering, etc. This kind of steel plate can be manufactured in different styles according to different requirements. It is required to have high strength, toughness and bear the load and impact of locomotives and vehicles, and have good fatigue resistance, certain low-temperature toughness and atmospheric corrosion resistance. The bridge steel plate should also have good welding performance and low notch sensitivity.

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