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热裂纹
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- 文摘:从生产实际出发，分析了锻模液态模锻成形过程中热裂纹形成的主要原因，提出了降低锻模热裂纹的几点措施。
Abstract: In the paper, the hot crack for the forging die made by methodsof squeeze casting is analyzed, how to reduce the hot crack is also given out. - 摘要根据铸件产生热裂纹的机理，对炉门框裂纹缺陷进行分析，找到了裂纹产生的主要原因是铸件结构和浇注系统不合理，以及浇注温度过高。
Based on the mechanism of hot cracking formation of castings, the cracking defects of furnace door frame castings was analyzed, and found that the main reasons causing cracking are as follows: construction of the casting was not reasonable, gating system was not proper, and pouring temperature was too high. - 摘要在实验的基础上分析了高强7A52铝合金焊接时出现的常见焊接缺陷：热裂纹、气孔、夹渣等产生的原因，并对每种缺陷提出了预防措施。
On the basis of the experiment, the reason that high strength 7A52 aluminum alloy produced the familiar defects such as hot cracking, porosity, slag patch, etc. in the welding was analyzed, and the preventive measures of every defect were adopted.
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