有关于大气熔炼浇注那些有高fpi和X光要求的铸钢件经验。
Experience with Airmelt investment cast steel alloys with high FPI and X-ray requirements.
但由于镁的化学性质活泼，非常容易氧化、燃烧，导致镁合金无法在大气条件下直接进行熔炼和浇注。
Since its chemical character is very active, Mg alloy is prone to oxidation and burning, which makes it impossible to be melted and cast in air.
对高铬铸铁的熔炼速度、过热温度、浇注温度及变质处理进行了研究。
The melting speed, overheat temperature, pouring temperature and modification in production of high chrome cast iron were studied.
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