2022-04-17
1．Incoming inspection
l Visual inspection
There shall be no visible damage, knock, metallurgical and processing defects on the surface of the casting pipe mould.
l The new cast pipe mould shall be checked by the portable leeb or brinell hardnedd tester and the inspection records shall be made.
l Key dimensions and runout of finished product drawing shall bevisual checked and recorded.
l After the incoming inspection, the qualified pipe mould shall be stored with the signs according to the wall thickness, size and fixed area.
l According to the socket size, the pipe mould shall be placed horizontally on the appropriate sleeper or soft plastic material support. The table supporting points shall be set at 1/5 of the length from both ends to avoid contacting with hard materials and not less than 100mm from the ground.
l Pipe mould are finished products and shall be stored anti-moisture, anti-corrosion and avoid open storage to prevent deformation due to the uneven heating created by sun explosion so as to affect the service life.
l Thin-walled pipe mould can not be stacked or piled up. Pipe mould (≥DN700) must be stored horizontally on the ground by single-piece, while the pipe mould (＜DN 700) can be stored in the special bracket.
2．Loading up and transportation of casting pipe mould
The pipe mould surface shall be prevented to damage, corrosion and deformation when the pipe mould is stored or transported. The soft lifting belt shall be used when hoisting, and the steel wire rope or grappling hook shall not be used.
The pipe mould shall be placed horizontally on the sleeper in the vehicle when transporting, both ends of which are forbidden to touch the carriage, and the supporting points shall be fixed.
