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["\n三环链出厂检验报告"]
["报告编号",{"$nulls":3},"型   号",null,"    Φ30mm"]
["抽检样品编号",{"$nulls":3},"检验日期"]
[]
["序号","检验项目",null,"标准要求",null,null,"检验结果","单项结论"]
[1,"尺寸偏差\n外观质量",null,"1、直径：30-+10.5（mm)"]
[{"$nulls":3},"   节距：120±5（mm)"]
[{"$nulls":3},"   内宽：50±2（mm)"]
[{"$nulls":3},"2、焊接连接链焊拉处的直径应不小于棒料的直径，也应不大于实际棒料直径的115%。焊拉连接链表面应光洁，焊口处不允许有气孔、夹渣、裂纹等缺陷。"]
[2,"拉伸试验",null,"试验负荷110KN"]
[{"$nulls":3},"伸长率≤2%"]
[{"$nulls":3},"破断负荷≥510KN"]
[{"$nulls":3},"破断负荷下的伸长率≥15%"]
[3,"弯曲试验",null,"弯曲挠度≥50mm"]
[{"$nulls":3},"或承受力≥360KN"]
[{"$nulls":3},"试验后应无裂纹"]
[4,"常温冲击试验",null,"常温冲击Aks≥80J"]
[{"$nulls":3},"焊口处冲击Aks≥64J"]
[5,"金相组织和\n脱炭层",null,"1、晶粒度≥5级"]
[{"$nulls":3},"2、全脱炭层≤0.1mm"]
["检验结论:"]
[]
["检验人员:",{"$nulls":3},"负责人:"]
[]
[null,null,"年    月   日",null,null,"年   月   日"]

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