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Manufacturing process of ball valve for gas meter pipeline

A gas meter pipeline and manufacturing process technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, etc., can solve the problems of product sand holes, air holes, casting process pollution, high cost, etc., achieve smooth surface, good metal performance, and reduce fracture Effect

Active Publication Date: 2014-12-03
WENZHOU YANG THAI FASTENERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, due to the hollow structure of the ball valve with a large middle and small ends, the manufacture of the ball valve is generally made by casting, and the casting process has defects such as serious pollution, high energy consumption, and high cost, and the cast product has sand holes, Defects such as stomata

Method used

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  • Manufacturing process of ball valve for gas meter pipeline
  • Manufacturing process of ball valve for gas meter pipeline

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Embodiment Construction

[0041] refer to Figure 1 to Figure 2 The embodiment of the manufacturing process of the ball valve for the gas meter pipeline of the present invention will be further described.

[0042] A process for manufacturing a ball valve for a gas meter pipeline, comprising the following steps:

[0043] Step 1, manufacture valve body 1:

[0044] In the cold heading machine mold, add the raw materials used to make the valve body 1, process the valve body 1 blank, and then press the blank to make the raw material into a spherical blank; in the cold heading machine mold, the spherical blank is processed three times Reshaping, gradually cold heading out the outline of the valve body 1; stretching one end of the outline of the valve body 1, cold heading extrudes the ball valve cavity and the positioning surface located on the circumference of the valve body 1; the other end of the outline of the valve body 1 Stretch and extrude the ball valve interface by cold heading; in the punching mac...

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Abstract

The invention discloses a manufacturing process of a ball valve for a gas meter pipeline and belongs to the field of ball valve manufacturing. The manufacturing process used for gas is low in pollution and energy consumption and high in safety performance. The technical scheme includes that raw metals are molded through multiple cold heading extrusions, and deformation resistance in the metals is gradually eliminated.

Description

technical field [0001] The present invention relates to a valve manufacturing process, more specifically, it relates to a ball valve manufacturing process. Background technique [0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the square ball valve. With the rapid development of science and technology, the continuous improvement of production technology and product structure, in a short period of 40 years Here, it has rapidly developed into a major valve category. [0003] In the prior art, the Chinese Invention Patent China with the application number CN201310307927.5 discloses a valve body casting process. The process uses a combination of inner and outer layers of open and dark risers and an outer cooling iron chilling process. Effectively eliminate the shrinkage cavity and shrinkage problems of thin-walled steel castings in the production process, that is, the described process forms a complete set of int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23P23/04
CPCB23P15/001
Inventor 周建
Owner WENZHOU YANG THAI FASTENERS
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