Technology for producing electric-controlled valve

Abstract

The invention discloses a technology for producing an electric-controlled valve. The technology for producing the electric-controlled valve comprises the steps that firstly, a valve body is manufactured, wherein cast parts are purchased, surfacing treatment is conducted after the cast parts are detected, then post-welding heat treatment is conducted on the cast parts, and the sealing surface of the valve body is ground; secondly, a valve clack and valve seat are manufactured, wherein raw materials are purchased, a workblank is manufactured after the raw materials are detected, ultrasonic flawdetection and surfacing operation are conducted on the workblank, the sealing surface is ground, and hardness detection is conducted on the sealing surface; thirdly, a valve rod is manufactured, wherein raw materials are purchased, the workblank is manufactured after the raw materials are detected, surfacing and post-surfacing heat treatment are conducted, fine machining is conducted on each portion, and the valve rod is put into a surface treatment system so that surface treatment can be conducted; fourthly, internal parts are manufactured, wherein raw materials are purchased, factory-entering detection is conducted on the raw materials, a workblank is manufactured with the raw materials, rough machining is conducted on the ultrasonic flaw detection surface, and finish machining is conducted on each portion; fifthly, fastening parts are manufactured, wherein raw materials are purchased, the raw materials are made into a workblank after being detected, a sample is taken and detected, finish machining is conducted after rough machining is conducted, and then spectrum detection is conducted; and sixthly, final assembly is conducted.

Description

technical field [0001] The invention belongs to the technical field of valve manufacturing, and in particular relates to a production process of an electric control valve. Background technique [0002] Refrigerant recovery machine, a kind of equipment for recovering refrigerant, is used to recover refrigerant in refrigeration machinery (civilian and commercial air conditioners, freezers, heat pump units, screw centrifugal units and other refrigerators). As a traditional Chinese medicine component in the refrigerant recovery machine, the control valve plays an irreplaceable role. [0003] The control valve includes valve body, valve disc, valve stem and other components. The valve stem plays the role of control transmission and controls the switch of the control valve. In order to prolong the service life of the valve stem, the valve stem needs to be surface treated after manufacture to increase the strength of the valve stem. The valve stem needs to be cleaned in acid solut...

AI Technical Summary

Problems solved by technology

[0003] The control valve includes valve body, valve disc, valve stem and other components. The valve stem plays the role of control transmission and controls the switch of the control valve. In order to prolong the service life of the valve stem, the valve stem needs to be surface treated after manufacture to increase the strength of the valve stem. The valve stem needs to be cleaned in acid solution before surface treatment to remove oil and oxides on the valve stem. The valve stem has a long strip structure, and the horizontal transportation can help improve the stability of the valve stem transportation, but the contact point of the horizontal transportation is relatively small. Many, not conducive to the cleaning of the valve stem; the longitudinal transportation stability is low, the valve stem is easy to shake during transportation, but it is beneficial to the cleaning operation of the valve stem, so the cleaning and transportation of the valve stem are difficult to neutralize, which has a certain impact on the processing of the valve stem

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