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[". 如何验收管道、管件和钢材?

2019-08-30View Original

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如何验收管道、管件和钢材?我们是建设单位,管道、管件、型钢、螺栓、垫片等由施工单位采购,我们建设单位应该怎样验收以防止施工单位以次充好从中赚取利润?
Reply #22019-08-30
对于碳钢,主要检测厚度和检查外观是否有变形;对于其他钢材,除了这些之外施工单位还需要进行光谱分析及时找他们要你们如果有光谱仪也可以自行检测。
Reply #32019-08-30
查验合格证、材质检验报告、尺寸、厚度、标识、光谱分析。
Reply #42019-08-31
我们通常有以下几步:1、资料验收合格证、出厂证明、炉号、批次包括合同数量;$、外观验收尺寸、壁厚、外观平整度、厂家钢印等‘3、理化试验。材质分析、硬度、拉伸、变形等。批量的关键物资 可以考虑驻厂监造。
Reply #52019-09-03
做EPC的话既然P给了施工单位我觉得首先应该考虑这几个步骤;1、严格审查生产厂家的短名单要求PO、T、FAT都要求厂家做。$、产品出厂后按照规范标准进行验收该用什么仪器就用什么仪器产品的合格证、材质单、批号等等都要有。3、检查材质单和合格证相关的性能比如拉伸、硬度、屈服强度等。4、最基本的外观验收;

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