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近几年来,通过对英国罗·罗公司材料技术条件的研究和英国钛合金锻件的解剖分析工作,证实英国航空钛合金锻件的质量水平较高。他们的质量控制办法也是有效的。现以斯贝发动机Ti-679合金的压气机盘和隔圈锻件为例,对英国α+β钛合金航空锻件的质量控制方法作一简要分析,以供国内借鉴。 合金化学成分的内控规范 英国生产钛合金锻坯的帝国金属公司(IMI)十分重视一次自耗电极的制备质量,除了制备电极的原材料有技术标准外,合金元素的加入方法已不采用传统的“合金包”方式,而是采用合金元素和钛颗粒在滚筒中大混料的方法,使组成一次自耗电极的每个小块电
In recent years, through the research on the technical conditions of the material of the British Luo · Luo company and the anatomical analysis of the British titanium alloy forgings, it is confirmed that the quality level of British aviation titanium alloy forgings is high. Their quality control approach is also valid. For example, the quality control methods of α + β titanium alloy aviation forgings in UK are briefly analyzed for the reference of China. The chemical composition of the internal control specifications British production of titanium alloy forgings Empire Metal Company (IMI) attaches great importance to the quality of a consumable electrode preparation, in addition to the preparation of electrodes have the technical standards of raw materials, the addition of alloying elements have not used the traditional “Alloy package” approach, but the use of alloying elements and titanium particles in the drum of the large mixing method, make up a consumable electrode each small piece of electricity