Forming process of fire safety valve

The invention relates to the field of safety valves, in particular to a forming process of a fire safety valve. The forming process comprises the following steps of preheating a mold; paving a layer of release agent on an inner cavity of the mold, namely uniformly spraying the release agent for shel...

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Bibliographic Details
Main Author YANG JINHUO
Format Patent
LanguageChinese
English
Published 19.01.2021
Subjects
COMBINED OPERATIONS
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OTHER WORKING OF METAL
PERFORMING OPERATIONS
TRANSPORTING
UNIVERSAL MACHINE TOOLS
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Summary:The invention relates to the field of safety valves, in particular to a forming process of a fire safety valve. The forming process comprises the following steps of preheating a mold; paving a layer of release agent on an inner cavity of the mold, namely uniformly spraying the release agent for shell making on the cavity of the mold by using an air sprinkling can; pouring liquid metal into the mold, and solidifying and forming the metal after the pouring is finished to obtain a valve casting ingot; grinding the obtained valve cast ingot, cleaning the grinded surface with acetone, naturally airing, performing sand blasting roughening treatment on the surface of the obtained cast ingot after airing, and performing blowing treatment on the obtained cast ingot with compressed air after sand blasting; drilling a part blank subjected to heat treatment through a drilling device; and then performing milling, grinding and polishing treatment to obtain a part finished product. The forming process is simple, the strengt
Bibliography:Application Number: CN202011033036