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.