螺母生产质量控制计划书Word格式.doc

1、工艺名称PROCESS NAMES备注REMARKS1原材料检验RAW MATERIAL INSPECTION2退火ANNEALING3酸洗ACID CLEANING4水洗WASHING5磷化PHOSPHATING6盘条拉丝WIRE DRAWING7成型FORMING8攻牙TAPPING9脱油DE-OILING10（淬火）QUENCH11（表面处理）FINISH TREAMENT12（回牙）RE-THREADING13筛铁屑IRON SCRAP SIEVING14清洗CLEANING1516包装PACKAGE宁波海信铁路器材有限公司NINGBO HAIXIN RAILROAD MATERIAL

2、 CO.,LTD检验指导书INSPECTION INSTRUCTIONS产品名称PRODUCT NAME螺母NUT材料MATERIAL第 1 张PAGE 1共 12 张TOTAL 12 PAGES产品级别 GRADE编号SERIAL NO.版 本VERSIONB0工序号PROCESS NO.工序名称PROCESS NAME使用设备EQUIPMENT光谱仪SPECTRUM ANALYZER要求REQUIREMENTS1、进厂原材料须有质量保证书原件、炉号、批号、生产日期。All raw material into the plant should be with mill certificate

3、,heat no.,batch no., and production date2、原材料化学元素含量、直径公差等应符合相关标准要求。Chemical compositions and diameter tolerances should conform to relevant standard requirements.3、钢材表面不得有锈蚀、麻点、裂缝、折叠、拉痕等缺陷。Steel surface cant have rust,pitting,cracks,folds,pull marks and other defects.4、钢材的外径用游标卡尺测量。External diameter

4、 should be measured by vernier caliper.5、钢材化学元素含量用光谱仪。参考质保书Chemical compositions should be checked by spectrum analyzer and referred to mill certificate.6、外观采用目测。Surface is checked by visual.检测工具TEST EQUIPMENT直径DIAMETER化学元素CHEMICAL COMPOSITIONS表面SURFACE游标卡尺VERNIER CALIPER目测BY VISUAL0-150LAD3000S编制ED

5、ITOR日期DATE审批RATIFIER签字倪传峰2010年12月10第 2 张PAGE 2产品级别GRADE原材料退火RAW MATERIAL ANNEALING天然气退火炉ANNEAL FURNACE WITH NATURAL GASSurface is checked by visual签字SIGNATURE第 3 张PAGE 3酸洗、水洗、磷化ACID CLEANING, WASHING,PHOSPHATING酸洗使用浓度5%8%的盐酸 Acid cleaning by hydrochloric acid with concentration from 5% to 8%1、酸洗后钢材呈

6、灰色，用清水洗净，不得有残余酸液。Steel after pickling should be gray,washed by water and without residual acid.2、酸洗后表面不得有氧化皮、黑色条纹，酸液腐蚀等。Steel surface after pickling should not have oxide skins,black stripes and acid corrosion.3、酸洗时，材料不得产生氢脆Hydrogen embrittlement should not happen during pickling process.4、酸液浓度要每天化验

7、，浓度必须达到5%8%工艺要求。Acid concentration should be checked everyday and should conform to process requirements with 5%8%.盐酸浓度 hydrochloric acid concentration化验CHEMICAL EXAMINATION第 4 张PAGE 4拉丝机 WIRE DRAWING MACHINE拉丝直径大小根据工艺进行确定Wire drawing diameter is determined by process specifications.1、拉丝前用拉丝粉作为润滑剂。Drawing powder should be used as a lubricant before wire drawing.2、拉丝后，钢材直径椭圆度0.03mm。Ovality of steel diameter after drawing shouled be equal to or smaller than 0.03mm.3、钢材冷却后用千分尺在不同部位分别测量钢材外径及椭圆度。Steel external diameter and ovality should by tes