通过采用合理的铸造工艺，确保了其叶片型线尺寸精度、转轮表面质量及铸件内部的致密度满足了设计要求。
By adopting appropriate foundry techniques, the accuracy of dimension and shape were ensured. The surface quality and internal density of runner meet the requirements of design.
分析了提高镍奥氏体铸铁电缆插头铸件致密性的工艺方案。
The technology for tightness improvement of the Ni austenitic cast iron cable head is studied.
指出合理的挤压铸造工艺可细化合金显微组织，提高铸件致密性，改善合金力学性能。
It is pointed out that the rational squeezing casting technology can refine microstructure and improve the component compactness as well as the mechanical properties of alloy.
碳化硅作为铸铁件激冷材料，可以使铸件获得致密而耐磨的组织。
Carbofrax used as the chill material for casting may make casting obtain compact and wear-resistant structure.
论述在低压、差压铸造的生产过程中，液面加压控制系统对提高铸件致密度的重要作用。
The important role of liquid surface pressure control system on density of casting during die casting process and different process has been put forward.
生产实践表明，采用该铸造工艺，生产的铸件组织致密，符合生产技术要求。
The productive practice indicates that the castings' microstructure produced by the technology is compact and the quality of the castings can meet the technical requirements.
这主要是由于半固态压铸件比液压件具有更加致密 ，且为球状的非树枝晶组织。
The ageing strengthening of semi solid die castings is more significant than that of liquid die castings for …
这主要是由于半固态压铸件比液压件具有更加致密 ，且为球状的非树枝晶组织。
The ageing strengthening of semi solid die castings is more significant than that of liquid die castings for …
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