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Before the stainless steel pipe parts are discarded on the welding elbow, the test pressure should be accepted, and then the part is disassembled into parts, soaked in the solvent that close the container for 1 to 1.5 hours (the fixed pressure should be adjusted from the head after the safety valve is discarded), and the suspension is suspended in the ventilation ventilation. Dry dry; other metal stainless steel pipe parts, metal pads, bolts, nuts, etc. can use the same method to skip fat.
Non -metal pads and elbows can be soaked in the solvent for 15-20 minutes, and then hanged in a ventilated place until the solventless smell stops. Pure impulse fille with strong oxidation media such as touch oxygen and thick oxidation media can be burned for 2 to 3 minutes at a temperature below 300 ° C, and then coated with paint (such as graphite powder, etc.).
After the pipe elbow is treated by annealing, if it is not dirty by oil, it will no longer be skipped. The stainless steel used in the thick device can be welded with three links, porcelain rings, etc., which can be washed or soaked with 93%of the thickness, then washed with water, and then washed with steam until the steam refrigerant was stopped without acid. For example, under the condition of the plane.
