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火箭发射部门最近完成了一项计划,证明用D6A钢电渣重熔空心坯制造火箭发动机壳体部分的可能性。这个试验是在空军材料试验室、制造技术部门、空军司令部、俄亥俄州莱特—帕特森空军基地主持下进行的,并与当时用来生产“凤凰”发动机壳体的D6AC真空重熔钢材料,在材料和工艺流程方面作了比较(从定义上讲,D6AC就是D6A真空重熔钢,所以本文所用D6AC系指真空重熔工艺)。
The rocket launch unit recently completed a program to prove the possibility of manufacturing a rocket motor case part from a D6A steel hollow slab. The trial was conducted under the auspices of the Air Force Materials Laboratory, Manufacturing Technology Division, Air Force Command, Wright-Patterson AFB, Ohio, and was associated with the D6AC vacuum remelted steel material used to produce the “Phoenix” engine shell , Compared material and process (by definition, D6AC is D6A vacuum remelted steel, so D6AC as used herein refers to the vacuum remelting process).