摘要
在对楔横轧工艺特点及生产汽车轴类零件产生中心缺陷(中心疏松、空洞)原因进行论述的基础上,对锻件金属流线分布及对中心组织影响、钢材中心疏松级别与轧件中心缺陷出现率对应关系等研究。结果表明,楔横轧过程中随压缩量越大钢材中心疏松被进一步恶化,中心疏松级别越高,甚至出现中心疏松和空洞等中心缺陷;供楔横轧用生产汽车轴类零件用钢材中心疏松应小于或等于1.5级。
On the basis of discussing cross-wedge rolling technology characteristics and causes of center defects on automobile shaft parts （central porosity, void） , we have done researches on the influence of forged parts metal flow distribution on central steel structure and the relations between central porosity level and the ratio of rolled parts central defects. Results have shown that the greater the amount of com- pression, the further steel central porosity deteriorates, the higher central porosity level, and even the central porosity and cavity defect center appear. For automobile shaft parts made by cross wedge roiling, steel central porosity should be ≤ 1.5.
出处
《冶金丛刊》
2013年第4期1-4,共4页
Metallurgical Collections
关键词
楔横轧
汽车轴类零件
中心缺陷
研究分析
cross-wedge rolling
automobile shaft parts
central defects
research and analysis
