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

  ΢̼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(ת)

  few55c1002.32.8

  few69c2.01.5

  few55c2002.32.8

  few69c4.01.5

  few55c4002.32.8

  高碳few67c6.062.0-72.05.80