Production method of cold bend B type steel
A production method and section steel technology, applied in the field of metal profile forming, can solve the problems of high production cost and low production efficiency of B-section steel, and achieve the effects of reducing cost and scrap rate, improving market competitiveness and ensuring section quality.
Inactive Publication Date: 2013-04-10
HENAN TIANFON ENERGY SAVING PANEL SCI & TECH
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[0003] The purpose of the present invention is to provide a production method of cold-formed B-shaped steel to solve the problems of low production efficiency and high production cost of existing B-shaped steel
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[0016] Cold-formed B-shaped steel production method of the present invention adopts a production line to realize, as figure 1 As shown, it is composed of a steel strip uncoiler 1, an automatic feeder 2, a pre-punching machine 3, a guiding device 4, a cold bending roll forming machine 5, a roll sewing machine 6, a shearing machine 7 and an automatic unloading machine. The steel strip uncoiler 1 is mainly used to place the steel coil, and automatically and continuously discharge the material. The center line of the steel coil is consistent with the center line of the production line; the automatic feeder 2 is driven by a motor, and the roller type Feeding can be automatically lengthened by the length detection device, and different feeding lengths can be set. The length error of each feeding can be controlled within ±2mm; the pre-punching machine 3 is driven by hydraulic pressure, and the guide rail between the hydraulic press and the punching die Auxiliary connection, online no...
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Abstract
The invention relates to a production method of cold bend B type steel. A steel belt is cut by the steps of: firstly, sending the steel belt to a precutting press according to the required length by an automatic feeding machine, and oppositely cutting two sides of the steel belt, corresponding a bent part of the steel belt, to form pre-cuts by using the precutting press; and secondly, fully shearing the residual part of the steel belt at the pre-cuts formed in the first step by using a shearing machine after the B type steel is subjected to cold roll forming so that the final product is formed. In the production method of the cold bend B type steel, the residual part of the steel belt at the pre-cuts is fully sheared by using the shearing machine after formed, therefore, hollow cylinder bodies at two sides of the B type steel are kept off during cutting, and section quality of the steel is ensured; and all production procedures are connected to form a streamline operation through a precutting procedure, continuous production of the B type steel is realized so that production efficiency, quality and size stability of the B type steel are remarkably improved, and cost and rejection ratio are remarkably reduced.
Description
technical field [0001] The invention belongs to the technical field of metal profile forming, and specifically relates to a method for processing and producing B-shaped steel with a B-shaped section. Background technique [0002] B-shaped steel is named because the shape of the section of the steel section is similar to the uppercase English letter B. It is mainly formed by rolling and cold-bending steel strips such as hot-rolled, galvanized, cold-rolled or color-coated. For example, the B-shaped steel structure disclosed in the Chinese Utility Model Patent Publication Document CN 2918958Y, this B-shaped steel has a plane, and two relatively parallel hollow cylinder structures are respectively arranged at both ends of the opposite side of the plane. The existing production method of producing this B-shaped steel is to first cut the steel strip according to the required length and then send it to the roller press for cold bending. After forming, it is necessary to weld on the...
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IPC IPC(8): B23P15/00
Inventor 郭新胜李续禄张爱军刘存芳王振丽
Owner HENAN TIANFON ENERGY SAVING PANEL SCI & TECH