Roll-in forming method for building profile steel

Abstract

The invention relates to a roll-in forming method for building profile steel. The roll-in forming method mainly comprises the following steps of feeding, roll-in forming, flattening and other variousworking procedures. Adopted roll-in equipment for the building profile steel comprises a baseboard, a feeding device, a roll-in device, a pushing device and a flattening device. The roll-in forming method can solve the following problems existing in roll-in forming for current building profile steel that a, when traditional building profile steel is subjected to roll-in forming, wrinkling of sidewalls and pressing marks of the bottoms often occur to the building profile steel after roll-in bending forming, residual linear sections exist at the ends of formed products, and the building profilesteel after roll-in is likely to bounce, which affects the use of the building profile steel; b, the building profile steel produced through an existing roll-in forming machine is out of flatness, the machining curvature is not uniform, obvious wavy machining defects or even distortion is prone to occur at edges in severe cases, the product quality is poor, equipment has complicated structures, many machining procedures are involved, materials are severely wasted, and the efficiency and quality of forming the building profile steel can be improved.

Description

technical field [0001] The invention relates to the technical field of building material manufacturing, in particular to a rolling forming method for building steel. Background technique [0002] The building section steel is made of galvanized steel sheet by roll forming, and its cross-section is V-shaped, U-shaped, trapezoidal or similar. It is convenient, fast, saves steel bars, and can be used as steel formwork. It has the advantages of low cost and high strength. The iron-carbon alloy with the carbon content of architectural steel between 0.04% and 2.3%, we usually call it combined with iron as architectural steel. To ensure its toughness and plasticity, the carbon content generally does not exceed 1.7%. In addition to iron and carbon, the main elements of architectural steel include silicon, manganese, sulfur, phosphorus, etc. The other components are to make the steel properties different. Production requires roll forming. [0003] However, the following problems ex...

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Problems solved by technology

[0003] However, the following problems exist in the roll forming of the existing building profiled steel. a. During the roll forming of the traditional building profiled steel, wrinkling of the side wall and the indentation defect at the bottom often occur after the roll forming of the building profiled steel. There are residual straight sections, and the rolled architectural steel will rebound, which affects the use of architectural steel; b The existing roll forming machine produces uneven architectural steel, uneven curvature, and in severe cases, the edges will Obvious wavy processing defects or even distortion appear, the product quality is poor, the equipment structure is complicated, the processing procedures are many, and the material waste is serious, which can improve the efficiency and quality of building steel forming

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