介绍了防止熔模铸件变形的几种措施。
Some countermeasures of preventing the deformation of castings in investment casting were expounded.
对熔模铸件孤立热节热型壳进行了浇注前及浇注后局部水淬激冷试验。
Experiments for hot mold shell with isolated hot spot by local water quenching in investment casting before and after pouring were conducted.
根据熔模铸件表面麻点内夹杂物的成分组成，对其来源进行了分析，并提出了相应的解决措施。
The origin of inclusions in rough sport disfigurement on the surface of investment castings was analyzed and the corresponding solutions were given according to the composition of inclusions.
通过开设适当的出芯工艺孔，利用组合型芯，成功地设计出了大型、复杂、不规则熔模铸件模具。
The large, complex and irregular investment casting mold was successfully designed by property arrange technology hole for core cleaning and use combinative core.
最好的学位项目设有金属成型、石头镶嵌、烛刻术、锻造术、生锈、电镀、车削加工和压模铸件课程。
The best degree programs offer courses in metal forming, stone setting, etching, forging, patination, plating, lathe work, and die casting.
详细分析了不锈钢熔模铸件夹砂（起皮）产生的原因，并提出了防止不锈钢铸件夹砂（起皮）的一系列措施。
The text detaily analyzes the cause of scab of stainless steel steel melt wax casting and proposes some measures to avoid it.
它能制造没有拔模斜度和缝脊的复杂形状铸件。
This can make complex shaped castings without any draft or flash.
为增大模头与铸件的距离，常用垫蜡块的方法。
To argue the distance between mold end and castings, the wax pattern block was set.
模对铸件完整性的影响。
结合生产实际介绍了消失模铸造的一些技术要点，并分析了常见的铸件缺陷。
Important points about EPC are introduced, and the defects of castings are analyzed in this paper.
铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。
The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.
针对铸件特点，采用国内外的先进技术，实现了消失模铸造大批量流水线生产。
Large batch production of V-EPC casting has been realized by using advanced technology.
对消失模铸造的铸件出现白色缺陷的原因进行了详细分析，并根据生产实际提出了一些有效的预防措施。
Detailed analysis is done to the causes of while defects in lost wax casting. Some effective precautionary measures are proposed based on practical production.
提出了用气化模铸造型内球化处理生产球铁铸件的方法及其工艺要点。
This paper presents a kind of method for producing ductile iron castings with the technique of evaporative pattern casting and in mould spheroidizing, and introduces its main measures.
介绍了陶瓷型铸造制模的工艺过程和工艺特点，并指出了陶瓷型铸件常见缺陷及防止方法。
Introduced molding process and characteristics of ceramic die-casting technology, and pointed out prevention for the ceramic die-casting common defects.
以一些铸件为例，介绍消失模铸造实际使用的浇注系统。
Taking some typical castings as examples, some pouring systems used in practical production were introduced.
在消失模铸造过程中，模样尺寸变化直接影响铸件的尺寸精度。
The changes of pattern size directly affect the dimensional accuracy of casting in the EPC process.
以硅溶胶型壳熔模精密铸造的工艺过程分析为基础，提出了铸件成本和价格的计算方法。
Calculation method of cost and price of investment castings was given based on analysis of sol silicate mold shell investment casting process.
特大型不锈钢阀体熔模精密铸造与砂型铸造比较，最大的问题是铸件的凝固控制。
Compared with large stainless steel valve body in sand casting, it was difficult to control solidification process in investment casting, which results in some defects in the valve body.
分析了消失模铸造的铸件出现白色缺陷的原因，并根据生产实际提出了一些有效的预防措施。
Analyzes the reason of the white defects appearing in the lost pattern casting and puts for - ward some effective preventive measures referenced with the production reality.
与此同时、铸件在预定时间内未充分冷却就开模。
Meanwhile, casting at a predetermined time not fully cooling and then open mode.
结果表明型壳的质量和强度得到了提高，成功的生产出了大壳体熔模精密铸件。
The result shows the qualities and strength of the shell are improved, and big-shell investment casting is produced successfully in investment casting.
根据由冰模所翻制铸件的尺寸对铸件收缩率进行了研究。
Some researches on the shrinkage percentage of the casting have been done according to the dimension of the castings made from the ice patterns.
在对铸件工艺和结构特征分析的基础上，进行了进气管消失模模具的设计。
Based on analyzing the technology and structure features of lost foam process cast, the designs of the inlet connection dies have been done.
开模时，压铸机开模力驱动交叉复合弯销机构进行铸件内侧凹抽芯，然后液压抽芯器抽拔杯形型芯。
The opening force of die casting machine drives the crossed compound dog-led CAM mechanism draw core in inboard concave, and then make the hydraulic loose-core implement to draw the hollow core.
针对电刷端盖压铸件结构及工艺要求，选择端盖口部大端面为动静模分型面，铸件上各成形小孔由动静模型芯对接组成，浇注系统采用中心浇道。
The small formation holes in the brush cover was constructed with the mold core in moving and static container, and center ingate was employed to the gating system.
根据铸件形状特点，若在动模内取出铸件，需长距离抽芯，故设计了滑块中途自行转动机构。
If the casting is taken out from the moving die, long distance core pulling is needed according to the shape of the casting, so the mechanism of the sliding block which rotates midway was designed.
设计制造了专用的蜡模熔合与校正夹具，以保证模组与铸件的尺寸精度。
In order to obtain dimensional precision of wax Patterns and castings, a special fixture has been designed and Produced for correcting and assembling wax patterns.
设计制造了专用的蜡模熔合与校正夹具，以保证模组与铸件的尺寸精度。
In order to obtain dimensional precision of wax Patterns and castings, a special fixture has been designed and Produced for correcting and assembling wax patterns.
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