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化学成分和质量抽查情况

历年来，化验室坚持化学分析质量抽查制度，产品化验质量严格按照国家标准和内控标准，进行定期抽查。质检处规定每月抽查三次，厂质管部门又作不定期的抽查。每年化验元素量近5万至7万只，经过抽查差错较少。自1984年微碳铬铁获得国家银质奖和其他各类铬系产品获省优、部优、国优产品以来，历经国家有关部门质量抽查，均合标准要求。

1984年以来，厂产品内控标准已达到和超过din，jis，iso等国际先进标准水平（以微碳铬铁成分为例，表5-8）

表5-8

标准

成份%cvsipc

din65-75不大于1.5不大于0.030不大于0.060

jis60-651.0以下0.04以下0.06以下

iso45-75不大于1.50.05-0.030.015-0.10

横铁厂61-65不大于1.5不大于0.030不大于0.05

1984-1989年铬铁成份化验处抽情况（部分）

表5-9

年份试样编号及牌号 抽查单位

成份% cvsipcs

1984few6-1省抽64.70.470.0290.050 0.007

few6-264.10.460.0240.050.015

few6-664.240.950.0250.0450.010

few6-764.180.670.020 0.0520.010

1987few6-1省抽68.070.660.0270.0560.005

few6-267.70.790.0270.0550.008

few6-367.71.80 0.0260.0510.002

few10-167.341.050.0270.0670.005

few10-267.051.370.0270.0620.006

few400-170.11.230.0172.110.030

few200-170.650.80 0.0181.780.030

few50-168.630.170.0280.310.006

few1000-168.030.110.0159.140.026

few1000-268.430.20 0.0159.060.025

1989few69c0.06国抽68.260.750.0250.040.006

few67c9.565.621.380.0248.40 0.027

few55c2566.961.720.0320.250.005

few55c40068.781.820.0262.030.038

1989few6-1省抽67.640.470.0240.0470.010

few6-267.290.340.0240.0480.011

few1067.781.120.0230.0650.004

综合样66.70 0.970.0218.390.019

few400-169.471.80 0.0142.640.010

few2566.281.050.0290.2240.005

备注以上检测结果、化学成份均符合gb5683-85标准及gb5683-87标准规定值

横山铁合金厂企业标准铬铁内控标准

qt/ht203-89 表5-9

类别牌号

化学成份%份%应用不 大 于

cvcsips

12

微碳few69c0.0363.0-75.00.0281.00.030.02

few69c0.060.058

few69c0.100.090

few69c0.150.140

低碳few69c0.2563.0-75.00.240

0.4901.50.030.02

few55c251.82.8

few69c0.501.5

few55c501.82.8

中碳few69c1.063.0-75.00.90

1.90

3.901.50.030.02

0.04(转)

few55c1002.32.8

few69c2.01.5

few55c2002.32.8

few69c4.01.5

few55c4002.32.8

高碳few67c6.062.0-72.05.80

9.502.80.03