Method and equipment for preparing fire-resistant and anti-corrosive C type steel
A C-shaped steel and fire-resistant technology, which is applied in the field of preparing fire-resistant and anti-corrosion C-shaped steel, can solve the problems of melting and peeling of the cladding layer, affecting the anti-corrosion performance, etc., and achieve the effect of enhancing the bonding stability, improving the fire-resistant and anti-corrosion ability, and increasing the contact area.
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[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0037] Referring to the production process of the C-shaped steel, the present invention defines the entry end of the steel strip as the front end, and defines the output end of the C-shaped steel as the rear end.
[0038] The preparation method of the present invention comprises the steps:
[0039] (1) Rust removal by shot blasting: remove the rust on the surface of the strip steel, and leave pits on the surface of the strip steel by shot blasting;
[0040] (2) Punching bonding holes: Punching a plurality of bonding holes through the upper and lower sides of the strip on the strip treated in step (1);
[0041] (3) Straightening and leveling: leveling and straightening the steel strip obtained in step (2);
[0042] (4) Forming: rolling the strip steel processed in step (3) into C-shaped steel;
[0043] (5) Punching connecting holes ...
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