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Manufacturing method of flange

A manufacturing method and flange technology, which is applied in the direction of flange connections, pipes/pipe joints/fittings, passing components, etc., can solve problems such as unsatisfactory, reduce production costs, waste materials, etc., and achieve the effect of low production costs

Inactive Publication Date: 2015-09-09
HENAN BAORUN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The flange refers to a circular flange. In the prior art, it is cut with a steel plate. The flange with a larger size has a larger circular vacant part inside and is cut with a steel plate. Flanges have the disadvantage of wasting materials and cannot meet the requirements of reducing production costs

Method used

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  • Manufacturing method of flange
  • Manufacturing method of flange
  • Manufacturing method of flange

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the drawings.

[0023] As shown in the figure, a method for manufacturing a flange includes the following steps:

[0024] a. Cut a long steel plate to make the width of the steel plate equal to the width of the flange ring, and the length of the steel plate is 2-4 cm longer than the circumference of the flange. The resulting product shape is like figure 1 Shown

[0025] b. Bend the steel plate into a cylindrical structure, and weld the seam to become a cylinder, the resulting product shape is like figure 2 Shown

[0026] c. The cylinder (product 6) is pressed into a conical shell structure with a cylinder deforming machine. The cylinder deforming machine has an upper mold 1 and a lower mold 2, and the upper mold and the lower mold have a matching tapered structure. The resulting product shape is like image 3 As shown, the cylinder deformation machine used is Figure 7 Shown

[0027] d. The conical shell ...

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PUM

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Abstract

The invention relates to the technical field of machinery and provides a manufacturing method of a flange. The manufacturing method comprises the steps of a, cutting out a strip-shaped steel plate so that the width of the steel plate is equal to the width of a flange circular ring and the length of the steel plate is 2-4cm greater than the circumference of the flange, b, bending the steel plate into a cylindrical structure and welding the joint into a cylinder, c, pressing the cylinder into a structure of a tapered shell by use of a cylinder deformer, d, pressing the tapered shell into a laminated structure by use of a press, e, cutting open a weld joint generated in the step b by use of a cutting machine to form an annular structure with a nick, f, narrowing the nick part of the annular structure with the nick by use of a shaping machine, and g, welding the joint. The manufacturing method of the flange has the advantages of low production cost, simplicity and practicability.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a method for manufacturing a flange. Background technique [0002] The flange refers to a circular flange. In the prior art, it is cut from a steel plate. The flange with a larger size has a larger circular vacant part inside and is cut from a steel plate. Forming flanges has the disadvantage of wasting materials and cannot meet the requirements of reducing production costs. Contents of the invention [0003] The object of the present invention is to provide a method for manufacturing a flange with low production cost and simple use to address the above-mentioned disadvantages. [0004] The technical scheme of the present invention is achieved in that a kind of flange manufacturing method comprises the following steps: [0005] a. Cut the strip-shaped steel plate so that the width of the steel plate is equal to the width of the flange ring, and the length of the steel pla...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00F16L23/02
Inventor 刘峙李宁
Owner HENAN BAORUN MACHINERY