is a kind of commonly used hardware products, valve before assembly and assembly process also has a certain technical requirements, otherwise the assembly of the valve can't reflect its itself has the good performance, the Industrial Valves in the assembly process what technical requirements? assembly before handling requirements: 1, according to the processing requirements, some parts need to do polishing processing, surface can't be machining burrs, etc. ; 2, all parts for degreasing process; 3, degrease pickling passivation, after the completion of cleaning agent does not contain phosphorus; 4, rinse clean with clean water after pickling passivation, there can be no drug residues, carbon steel parts leave out this step; 5 parts with non-woven fabric, shot for dry, not cable MAO retained components surface, or use a clean dry nitrogen; 6, with non-woven fabric or precision filter analysis of pure alcohol to wipe components one by one, until no dirty color. assembly technology requirements: 1, the installation must ensure that the workshop clean, or clean up temporary area, for example with the new purchase of striped cloth or plastic film, such as, prevent dust during the installation process has entered. 2, the assembly workers must be dressed in a clean, pure cotton overalls, head Dai Chun cotton padded cap, hair can't leakage, foot wear clean shoes, hand wear plastic gloves, skim. 3, erection tools must be clean before assembly to skim, ensure clean.
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