It is feasible to forecast the casting UTS by measuring DAS, but the effect of hole ratio on UTS should not be neglected.
通过测定二次枝晶间距来预测铸件的抗拉性能是可行的，但是孔洞率对抗拉强度的影响不可忽视。
So often easily design overflow and air vent at inappropriate location, making casting generated gas hole.
所以常常容易因为溢流井与逃气道位置设计不当，使得铸件产生气孔的缺陷。
The large, complex and irregular investment casting mold was successfully designed by property arrange technology hole for core cleaning and use combinative core.
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 problems and the solution of blast furnace tuyere in the casting are introduced. Measurements on lowering gasser and needle hole is analysed.
介绍了高炉风口在铸造中遇到的问题和解决方法，讨论了降低气孔、针孔的工艺措施。
Carried on the analysis to the lost wax casting craft sand hole defect creation factor.
对熔模铸造砂眼缺陷产生因素进行了分析。
For example on the products of a hole, it might be of no great importance for practical and technical personnel, if not it may mean more products will be produced by casting.
例如产品上的某个孔，对于实际技术人员来讲可能无关紧要，如果没有它可能愈味着产品将无法通过铸造制造出来。
Investigation on the loudspeaker shaped gas hole morphology in tin bronze sleeves cast by centrifugal casting have been carried out by optical and scanning electron microscope observation.
在对锡青铜离心轴套铸件的喇叭形气孔形貌进行分析的基础上，归纳出喇叭形气孔的形成机理。
Precision injection molding, casting, mold repair metal jewelry and accessories, precision stampings, welding, lost wax castings, aluminum castings, stainless steel sand hole repair.
精密注塑、压铸、模具的修补金属饰品及配件、精密冲压件的焊接、失蜡铸件、铝铸件、不锈钢产品砂孔修补。
The paper developed low-melting-Point alloy cores, through die casting experiment, the cores hole deformed well.
自行研制的低熔点合金型芯，经压铸实验，铸件孔成形完好。
Medium and deep hole casting blast sublevel open stoping method is suggested and its suitability to the stope ground pressure is expounded.
提出了中深孔抛掷爆破分段空场法，并阐明其对采场地压的适应性。
The essay analyzes the problem of blow-hole which is easily seen in the process of production and makes further discussion of the technology of improving lid casting.
前言：对烘缸缸盖在铸造过程中易出现的皮下气孔问题进行了分析，并对缸盖浇注系统的工艺改进作了进一步探讨。
The test of water simulation on the original running system verifies shows that unreasonable original running system causes blow hole in 495A diesel engine block casting.
通过对缸体原浇注工艺的水力模拟，发现原浇注工艺不合理是造成495A缸体产生缺陷的主要原因。
Method used to reduce blow hole defects of die castings include 4 aspects:melting, pattern die. parameters of die casting process, and stripping agent.
前言： 消除压铸件气孔的方法包含4个方面：熔炼、模具、压铸参数和分型剂。
Compared with the traditional methods, such as embedded fixation, hole casting, bolt connection and welding, Haihang nail fastening technology has many advantages.
海行射钉紧固技术与传统的预埋固定，打洞浇注，螺栓连接及焊接等方法相比，具有许多优越性。
The problem that the position of the bolt hole for reserving the equipment foundation is not precise in the process of casting concrete in prior art, and the template is hard to detach is solved.
解决了现有技术中存在的在混凝土浇筑过程中预留设备基础的螺栓孔洞的留设时位置不准确，模板拆除难的问题。
The single-hole casting blast experiment was conducted in lab. The formation process of blasting crater was observed and the casting velocity and its distribution rule was analyzed.
在实验室进行了单孔抛掷爆破试验，观测了台阶爆破漏斗形成过程，分析了抛掷速度及分布规律。
At present, piles with circular are used in all casting bore-hole pile foundations, but these piles have smaller perimeter and smaller section modulus as compare with the rectangular ones;
目前钻孔灌注桩基中的桩均为园形截面，和矩形截面的桩相比，园桩的周长、断面系数较小，抗弯能力差。
At present, piles with circular are used in all casting bore-hole pile foundations, but these piles have smaller perimeter and smaller section modulus as compare with the rectangular ones;
目前钻孔灌注桩基中的桩均为园形截面，和矩形截面的桩相比，园桩的周长、断面系数较小，抗弯能力差。
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