Compacting process of cold-resistant corrosion-resistant ball valve element

A corrosion-resistant and spool technology, which is applied in the field of high freeze-resistant and corrosion-resistant ball valve spool pressing technology, can solve the problems of ball valve scrapping and spool prone to leakage, and achieve integrity assurance, avoid shortened service life, and improve strength Effect

Inactive Publication Date: 2018-11-06
汪廷云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main parts to realize the sealing function of the ball valve are the valve core and the sealing ring matched with it. If the valve core of the ball valve is worn or broken, it is easy to leak, and the entire ball valve will be scrapped. Therefore, the performance of the high frost and corrosion resistant ball valve core is improved It is especially necessary to press the process to make it more reliable

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with specific embodiments.

[0017] A pressing process for a valve core of a high frost-resistant and corrosion-resistant ball valve, comprising the following steps: material selection: select 430 stainless steel plate as a blank, calculate the size according to the size of the valve core, and then use a cutting machine to cut the blank according to the calculated target size; Pretreatment: The cut 430 stainless steel plate obtained in the material selection step is bent into a U shape, and punched by a punching machine or a punching machine to form a metal round tube body, and the metal round tube is obtained after the tube seam is welded on the body; The circular plate is placed in an annealing furnace for annealing treatment. The annealing furnace maintains a temperature of 800~940°C for 15 minutes, and then cools rapidly; pressure ball: the annealed round tube is punched into a spherical shell, and ...

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Abstract

The invention discloses a compacting process of a cold-resistant corrosion-resistant ball valve element, and belongs to the field of valve manufacturing. The compacting process of the cold-resistant corrosion-resistant ball valve element comprises the following steps of selecting materials, pretreating, annealing, compacting into balls, placing into an inner straight pipe, polishing, cleaning andthe like. The processing process is reliable, so that the finished product valve element is more reliable.

Description

technical field [0001] The invention relates to the field of valve manufacturing, in particular to a pressing process for a valve core of a highly frost-resistant and corrosion-resistant ball valve. Background technique [0002] Valves are widely used in modern society. Especially in the technical field of plumbing pipe fittings, there are many kinds of valves in the prior art, mainly ball valves, angle valves, globe valves, etc., wherein the structure of the ball valve is relatively simple, mainly because the spool of the ball valve is relatively simple. The spool of the ball valve has a symmetrical spherical structure as a whole, with a cylindrical through hole in the middle, and a stem groove connected to the valve stem at the center of the outer spherical surface of the spool. When working, it rotates The valve stem aligns the cylindrical through hole of the spool with the inlet and outlet of the ball valve, and when it stops working, reversely turns the valve stem so t...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P15/001
Inventor汪廷云
Owner汪廷云