影响细化效果的主要因素有：加热速度、保温时间、冷却速度和循环次数。
The main factors that affect the grain refinement are heating and cooling rate, holding time and cycle index.
晶粒度测试表明：慢速加热条件下出现组织遗传现象，中速加热时可细化晶粒。
The grain sizes being tested, show that the hereditary phenomena will appear under the condition of slowly heating, and that grains will be fined when the moderate speed is heated.
发现，HQ70钢过热区粗大非平衡组织，经第二次快速加热到正火区，并没有出现通常所认为的“细化品粒”现象，而是出现了“组织遗传”。
It was discovered that structural heredity phenomenon took place in the non-equilibrium structure of overheated zone of HQ70 steel after another quick heating.
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