Machining method for valve element of reversing valve
A processing method and reversing valve technology, applied in the field of valve components, can solve the problems of enterprise loss, reduced service life of the reversing valve, imperfect processing method of the reversing valve spool, etc., so as to improve the overall service life and the quality of the spool. Good and loss-reducing effect
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[0015] A method for processing a reversing valve spool according to an embodiment of the present invention includes the following steps:
[0016] 1) Saw the blank according to the size of the reversing valve;
[0017] 2) Heat treatment of the blank, first annealing, then quenching and high temperature tempering;
[0018] 3) Carry out rough machining on the heat-treated billet, rough turn the outer circle, drill the inner hole, leave a machining allowance of 1.6-1.9mm on one side, and make the valve core semi-finished product;
[0019] 4) Finishing the semi-finished valve core, finishing the outer circle and inner hole; processing grooves, threads and chamfers at the same time;
[0020] 5) Drill the installation holes on the end face and the liquid holes evenly distributed around the circumference to remove the burrs at the intersection;
[0021] 6) Blacken, galvanize or chrome-plate the finished parts;
[0022] 7) Make the finished valve core and pack it into the warehouse....
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