The methods of reducing critical casting yield were analyzed theoretically.
并从理论上分析了降低临界成品率的几种途径。
Using thin, wide ingate and chill can prevent the shrinkage defect, and improve casting yield by 3%.
采用薄、宽的内浇道和冷铁工艺消除了飞轮铸件的缩孔缺陷，铸造工艺出品率提高3%；
Tight-lock coupler casting yield can be increased by 9% and the consumption of raw materials reduced and the economic benefits increased.
通过本课题研究，密接式车钩铸件出品率可以提高9%，降低了原料消耗，提高了工厂的经济效益。
The relationship between casting yield and effective rate of metal charge, usage ratio of molten iron, technology yield and pass rate of castings were surveyed.
阐述了铸件成品率与金属炉料有效率、铁液利用率、工艺出品率、铸件合格率四个比率的关系，指出了铸件成品率与铸造生产的全过程有关。
The sprue with square or hexagonal section is superior to the sprue with round section for technological yield of the casting by theoretical analysis and actual verification.
通过理论分析比较并通过生产实践得出，对于铸件工艺出品率，正方形或正六边形截面的直浇道优于圆形截面的直浇道。
The production shows that there is no shrinkage, blowhole and inclusion in the casting, the overall yield of the casting is 95%.
生产结果表明，铸件无缩孔、气孔、夹渣缺陷，铸件工艺出品率95%。
But current casting and processing technique show disadvantages that results in a yield rate of only 25-35%, and serious waste of materials and energy.
但落后的现有铸锭工艺和加工工艺，使综合成品率仅有25 ~ 35%，造成了材料和能源的严重浪费。
As compared with static casting, above mentioned technique can improve yield and mechanical properties of castings significantly and provide sound castings at less cost.
与重力铸造相比，该工艺显著地提高了铸件成品率和机械性能，达到以较少的成本生产出较多优质铸件的目标。
According to analyzing and testing, the overall yield is up to above 75 percent by changing traditional foundry process about gear of steel casting. The benefit is obvious.
经分析和试验，改变了传统铸钢齿轮铸造工艺方法，平均工艺出品率达到75%以上，取得明显的经济效益。
The sand core structure provided by the utility model can solve the difficult technique problems of core shooting and chocking in casting simply and effectively, and improve the yield of the castings.
本实用新型所提出的砂芯结构，可简单而非常有效的解决铸造生产中射芯呛火的技术难题，提高铸件的成品率。
The two-ring casting is higher and stable in yield;
两种造型工艺比较，以双环铸造工艺的成品率较高、稳定；
Batch production shows there are no shrinkage cavity and porosity in casting, and no blowholes and sand inclusions on the top surface. The yield of the casting is 81%.
经批量生产验证，铸件内无缩孔、缩松缺陷，上表面无渣孔、气孔缺陷，工艺出品率81%。
Using self-feeding in solidification can make good surface quality, no shrinkage casting defects of castings; the technology product yield of the casting greatly increases.
利用凝固过程自补缩，可使铸件表面质量好，无缩孔、缩松等铸造缺陷，工艺出品率大大提高。
The technology can improve the efficiency and accuracy of gating system design, shorten the design period and ensure the castings quality, and increase the casting process product yield.
该技术能提高浇注工艺设计效率与精度，缩短设计周期，保证产品质量，提高工艺出品率。
Using the new technology, the shrinkage defect's position in the initial casting was changed, the quality and yield of the castings improve.
采用新的工艺方案，改变了原铸件中收缩缺陷的位置，提高了铸件的质量及铸件的工艺出品率。
The technology can improve riser design efficiency and accuracy, shorten the design period and ensure the casting quality, and increase casting process product yield.
该技术能提高冒口工艺设计效率与精度，缩短设计周期，保证产品质量，提高工艺出品率。
The technology can improve riser design efficiency and accuracy, shorten the design period and ensure the casting quality, and increase casting process product yield.
该技术能提高冒口工艺设计效率与精度，缩短设计周期，保证产品质量，提高工艺出品率。
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