Cylinder and the piping in refrigeration compressor are isolated by iron-based valve plate, to ensure the volume seal of the cylinder, this requires the iron-based valve plate has a high surface quality, the flatness value smaller than 0.04mm. Now, the preparation of the valve plate:Original powder mixed→Powder forming→Sintering→Finishing. As the iron-based valve plate deformation in the preparation process, the surface of iron-based valve plate must be grinded.
The deformation of the valve plate under ...
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