Technology for producing electric-controlled valve
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An electric control valve and production process technology, applied in valve details, valve device, valve shell structure, etc., can solve problems such as many contact points, unfavorable valve stem cleaning, valve stem processing effects, etc., to avoid jitter and improve transportation stability. Sex, the effect of increasing the fixed effect
Active Publication Date: 2020-11-20
SHANGHAI KAIKE VALVE MFG
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[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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[0044] A production process of an electric control valve, including a, valve body manufacturing: purchasing castings, performing surfacing welding after testing the castings, and then performing post-welding heat treatment on the castings, grinding the sealing surface of the valve body; b, valve disc, valve seat Manufacturing: Purchasing raw materials, making blanks after testing raw materials, performing ultrasonic flaw detection and surfacing welding operations on blanks, grinding the sealing surface, and doing hardness testing on sealing surfaces; c. Valve stem manufacturing: purchasing raw materials, making blanks after raw material inspection, Surfacing and heat treatment after surfacing, finishing each part, putting the valve stem into the surface treatment system for surface treatment; d, internal parts manufacturing: purchase raw materials, conduct incoming inspection on raw materials, and make rough rough machining ultrasonic flaw detection surface, Finishing each depa...
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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...
Claims
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Application Information
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