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

A flange and metal technology, which is applied in the field of methods and rolling equipment, can solve the problems of large machining allowance, undisclosed rolling die structure, complicated process and the like

Inactive Publication Date: 2008-02-20
柳锁兵
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  • Abstract
  • Description
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  • Application Information

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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 r

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

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Embodiment Construction

[0039] Taking a six-hole flange with an outer diameter of 460mm, an inner diameter of 360mm, and a thickness of 5mm as an example, the specific implementation of the present invention will be described in detail in conjunction with the accompanying drawings:

[0040] The rolling method is as follows:

[0041] ①Select a strip steel with a width of 50mm and a thickness of 5mm;

[0042] ② Bend the starting end of the strip steel into a 90° elbow under normal temperature conditions, and the size of the elbow is 5-6mm

[0043] ③Insert the strip steel elbow into the notch 141 of the end face of the rolling mold core 14 in the special rolling equipment for metal flanges, and roll it into a spiral ring cylinder by the special rolling equipment for metal flanges, as shown in Figure 1;

[0044] ④ Carry out radial cutting along the bending head at the starting end of the lowest roll, remove the bending head at the starting end, and obtain several open flange blanks, as shown in Figure 2...

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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...

Claims

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Application Information

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IPC IPC(8): B21C37/28
Inventor 柳锁兵
Owner 柳锁兵
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