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Welding method for four-way reversing valve body

A technology of four-way reversing valve and welding method, which is applied to multi-way valves, welding equipment, valve details, etc., and can solve the problem that solder is easy to seep into the upper surface of the valve seat, etc.

Active Publication Date: 2014-03-05
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a four-way reversing valve and its valve body assembly welding method, which is used to solve the defect that the solder is easy to seep into the upper surface of the valve seat in the prior art during the welding process, so as to realize During the welding process, the solder is not easy to seep into the upper surface of the valve seat

Method used

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  • Welding method for four-way reversing valve body
  • Welding method for four-way reversing valve body
  • Welding method for four-way reversing valve body

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] Figure 7 It is the front view of the four-way reversing valve of the present invention. Such as Figure 7 As shown, the four-way reversing valve of this embodiment includes a valve body 71, a valve seat 72 and a connecting pipe 73, wherein the valve seat 72 is nested in the valve body 71, the connecting pipe 73 is nested in the valve sea...

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Abstract

The invention provides a four-way reversing valve and a welding method for a valve body component thereof. The welding method for the four-way reversing valve body component comprises the following steps of: integrally assembling the valve body, the valve seat and the connecting pipe of the four-way reversing valve body component; filling a silver-free tin-copper solder in the grooves on the two sides of the circular arc surface of the valve seat; and welding the connecting pipe and the valve body together and welding the connecting pipe and the valve seat together through soldering in a furnace. Through the four-way reversing valve and by the welding method for the valve body component thereof, the defect that the solder easily permeates onto the upper surface of the valve seat in a welding process of the prior art is overcome, and the aim that the solder is insusceptible to permeating onto the upper surface of the valve seat is fulfilled.

Description

technical field [0001] The embodiments of the present invention relate to the field of mechanical engineering, in particular to a four-way reversing valve and a welding method for valve body components thereof. Background technique [0002] In the prior art, the four-way reversing valve includes a valve body, a valve seat and a connecting pipe, wherein the valve body and the valve seat are made of brass, and the connecting pipe is made of red copper. The connecting pipes are welded by flame brazing, and the upper surface of the valve seat is usually processed into a smooth surface after each valve body assembly is welded. [0003] In the course of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] (1) Brass is a scarce resource. Due to the low strength of brass, in order to ensure the strength of the valve body and seat, the amount of brass will be increased, which will increase the cost of manufactu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/00F16K27/00B23K1/008
Inventor 张国栋黄松炎
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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