The results show that the qualification rate of the high-strength steel round link chains for mining was obviously raised after heat treatment by using on-line infrared temperature measurement system.
结果表明，采用红外线在线测温后，矿用高强度圆环链热处理后的合格率明显提高。
Mining equipment . high tensile steel chains round link for chain conveyors and coal plough . specifications . acceptance testing.
采煤设备。经链板输送机用高抗拉强度圆钢丝链环的校准链。规范。验收条件。
Round steel link chains, tested - Part 4: Marking, test certificate.
经过检验的圆钢链。第4部分：作标记，试验证明书。
Round steel link chains, tested - Part 4: Marking, test certificate.
经过检验的圆钢链。第4部分：作标记，试验证明书。
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