A chemical composition The chemical composition of the stationed version should comply with national standards or relevant technical standards. The composition should be uniform, the chemical composition analysis sample should be specifically representative, and each dissolved word should be sampled and analyzed from the flow or finished product.
Second appearance quality
1 The surface of cast-rolled sheet should be smooth, clean and well-shaped, and cracks, tropics, slag inclusions, gas slag, voids and surface segregation and streaks that affect the use are not allowed.
2 The end face of the cast strip should be smooth, clean, and good in shape, and it is not allowed to affect the edge defects.
Three low-fold organization
1 The structure of the cast-rolled sheet is fine, dense and uniform, and it meets the relevant technical standards. Each roll should steal low-test samples.
2 The structure of cast-rolled sheet can not have defects such as slag inclusion, hole, delamination, coarse grain and so on.
Four dimensional tolerance
1 The difference of the plate of the cast-rolled plate, the convexity requirement is controlled within 1% of the plate thickness, and the thickness difference of one week is less than 3%.
2 The width deviation of the cast strip should be -5~20mm.
3 Each Juan should perform the detection of the shape difference of the plate difference, convexity, width, etc.;