Method for coiling directly metal flange using with strip steel and its coiled equipment

Abstract

The invention discloses a method using band steel to directly coil a metallic flange, and also provides a coiling device exclusively for the metallic flange. The invention doesnot need to heat and proceed tempering or annealing process during the coiling process; in addition, the invention is able to successively carry out coiling process with the minimum welding quality. As is proved by actual production, the key technical indexes such as the dimension accuracy of the internal and external cycles and the planarity of the flange are able to reach level IT9; the utilizing rate of the band steel materials is up to 97 percent. The longer the band steel is, the higher the utilizing rate is. Only one person is able to operate ten coiling machines. The invention has not only simple and convenient operation, but also excellent safety and reliablity as well as high productivity as well as low cost.

Description

Technical field: [0001] The invention relates to a processing method of a metal flange, in particular to a method for rolling a flange by using strip steel and rolling equipment thereof. Background technique: [0002] For a long time, people have been paying attention to the new method of making metal flanges, because there are many defects in the steel plate punching method, cutting-welding method, or casting method. For example, the steel plate punching method has high processing efficiency, but the The utilization of steel is extremely low; although the utilization rate of steel is improved by the cutting-welding method, it needs to be cut and then welded. If the gas cutting method is used, machining is required, and if the wire cutting method is used, the cost is high and the production efficiency is low; Casting The method not only has high energy consumption, but also requires mechanical finishing, it is difficult to realize assembly line operation, the efficiency is n...

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Problems solved by technology

[0010] Although the patent document mentions the technical assumption of coiling flanges with strip steel, it does not disclose the structure of the coiling die and the key necessary technologies such as coiling on what kind of rolling machine. According to this document, it cannot be implemented. , even if the scheme can be implemented, it uses the hot rolling method, which requires secondary heating and primary annealing during the entire processing process, which not only consumes a lot of energy, the process is complicated, and the processing allowance after rolling is relatively large. It has not yet reached the level of chipless processing, and it is not yet the technical solution that people expect

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