西气东输工程用钢管质量控制实例(中)

Examples of Quality Control for Steel Tubes Used for West-to-East Gas Transmission Pipe Line Project ( Part Ⅱ )

简述了西气东输工程用钢管的生产质量控制的重要性,钢管选材及技术条件的确定,钢管生产过程中质量控制方案及模式,全过程质量控制和全过程驻厂监督的方法。指出过程控制检验是过程控制的重要手段,能有效地降低成品检验的生产方和用户方的风险,是保证产品100%受控的重要手段。重点介绍了钢板、板卷、钢管、弯管生产试验中几个重要的质量控制实例。

Briefed here in the paper are the main aspects concerning quality control of the steel tubes as used for the West-to-East Gas Transmission Pipe Line Project, covering the importance of the quality control, determination of technical specification of the steel tubes, the plan and mode of the quality control during the process of manufacturing the steel tubes, the full process quality control as well as the full process site supervision by the customer representatives, etc. It is emphasized that the process control inspection is a key measure of process control, which contributes to considerably minimizing the risk both the manufacturer and the end-user may take with finalized product inspection and ensuring the product under 100% control. Several examp- les of the said quality control are described, involving the production of steel plate, strip, pipe and elbow, etc.