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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
