结果表明，在众多的影响因素中，钢水的化学成分对热裂的形成有决定性作用，而夹杂物和浇注温度对热裂的形成也有明显的影响。
Experimental results show that the chemical composition of molten steel has the decisive effect, whereas inclusions and pouring temperature also has remarkable influence on hot tear formation.
同时，稀土使合金的热裂纹形成温度降低，增加了热裂纹形成应力，降低了合金的热裂倾向性。
Moreover, they are able to decrease the temperature and increase the stress of hot cracking formation, as a result, decrease the tendency of hot cracking.
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