Guoyi briefly describes the inspection criteria of seamless calcium wire

1、 Internal control standard

1. Chemical composition of calcium core:

Ca≥97％

2. Nominal diameter of cored wire: 9.0 ~ 9.0 + 0.6mm; Steel strip thickness: 1.0 ± 0.05mm;

3. Requirements for meter weight of cored wire: calcium core weight ≥ 52g / m, steel belt weight ≤ 210g / m

4. Oil stain and rust shall be removed before steel belt coating. The calcium core shall be kept dry and shall not be mixed with other magazines. The cored wire shall be wrapped firmly without core leakage, seam opening, wire removal, false package, oil and rust on the surface.

5. Packaging requirements: the weight of iron frame shall meet the general requirements of cored wire. The outer contour of the product shall be tightly wrapped with plastic film, and there shall be an indelible label on the outside, indicating the name, main element content, size, weight, production unit and production date.

2、 Receiving method:

1. Purity of metal calcium: when metal Ca ＜ 97%, it will be reduced by 5 yuan / ton for every 0.01% reduction compared with 97%.

2. When the weight of calcium core is less than 52 g / m, the price will be reduced by 300 yuan / ton for every 1 g / m lower than 52 g / M; the price will be reduced by 10 yuan / ton for every 1 g / M increase in the weight of steel strip.

3. When CA ＜ 95% or the weight of calcium core is less than 47g / m, the buyer has the right to reject or solve through negotiation.