Discard of Cr12 High Alloy Steel Forgings by Over Roasting;
Cr12系列高合金钢锻件过烧废品的产生
The overheating temperature of the deformation structure of 7175 T74 rolled ring was determined by comparison test.
研究了7175T74铝合金轧制环件的热处理工艺参数对材料组织和性能的影响,通过对比试验确定了7175T74轧制环件变形组织的过烧温度。
The parameters of forging process and overheating temperature of 2214 forgings are determined through the comparison and test.
通过对比和试验确定2214锻件锻造工艺参数和变形组织的过烧温度,研究其热处理工艺参数对材料组织和性能的影响。
From the above observations, it was deduced fragmentation process of the shell, and concluded that fragmentation of the explosive shell with bottom concave will made as soon as it breaks away from gun muzzle resulted from overburn of material at the bottom co.
根据上述结果,推测了这发弹的破碎过程,并得出结论,这发底凹榴弹出炮口即发生破碎是由于底凹部材料过烧引起的。
LD11 Billets Homogenizing Test and Its overheat Temperature;
LD11 铸锭均匀化试验及过烧温度的确定
The overheat temperature of Al-Cu-Mg-Ag alloy extrusion bar was studied by DTA and microstructure analysis.
采用DTA差热分析、显微组织分析的方法 ,对新型耐热铝合金Al-Cu -Mg -Ag挤压棒材的过烧温度进行了研究 ,确定了该合金的固溶处理温度。
The resuits show that the overheating and overburning temperature of the stael are about 11600℃ and 1220℃ respectively.
研究了Ｃｒ１２ＭｏＶ钢锻造加热过热、过烧对其随后中间球化处理及最终淬火、回火处理的组织和性能的影响。
This paper puts forward some precautionary measures to overburning and exploding of the overheater.
循环流化床锅炉是上世纪八十年代后期迅速发展起来的新型锅炉,但早期生产投入运行的锅炉存在许多设计缺陷,影响锅炉过热器等承压受热部件的使用寿命,针对过热器出现过烧爆管现象,提出一些预防措施。
The results show that overheating and overburning is the direct reason for fracture.
分析MWMTBD2 34V6型柴油机的曲轴断裂原因 ,结果表明锻件过热过烧是导致断裂的直接原因 ;曲轴热处理工艺不规范、不完善 ,曲轴工作润滑条件不良加速了曲轴断