The press rolls on paper machine belong to hollow casting roll.
造纸机压榨辊属空心铸造辊。
If a hollow casting is to be made the pattern will include extension pieces so that Spaces to accept the sand core are molded into the sand. These additional Spaces in the mold are termed core prints.
如果铸造空心铸件时模型上包含伸长杆便于在砂中放置砂芯的空间称为型芯座。
The no machining directional solidification hollow turbine blades, hollow guide vans and complex structure parts used in aero engine and gas turbine made by vacuum precision investment casting.
航空发动机、燃机等精铸真空无余量空心涡轮、导向叶片及复杂结构件。多种热处理炉上用料盘，夹具等耐热合金钢精铸件。
Shenzhen Zen alluvial gold velvet with gold, silver and copper as raw material, the electric casting is hollow, some manufacturers use is resin embryoid body, process and value will vary.
深圳天禅绒沙金采用的是金银铜为原材料，电铸件是空心的，有些厂家采用的是树脂的胚体，工艺和价值都会有所不同。
To produce hollow tubes, which can satisfy the requirements of direct rolling in casting conditions, is the key to realize continuous casting-direct rolling of hollow tubes.
如何获得优质空心管坯使其能够满足在铸态下直接轧制的要求，是实现空心管坯连铸连轧，即管材近终形制造技术的关键。
Continuous casting of hollow tube is considered as a profound near net shape technology for pipe production.
空心管坯连铸技术被认为是管材生产更深层次的近终形制造技术。
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.
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。
It was very difficult for high cr cast Fe hollow ball valve in investment casting due to its internal hollow and full close as well as high crack susceptibility.
高铬铸铁空心球阀的精密铸造难度较大，球阀内部必须空心、全封闭，同时高铬铸铁的裂纹敏感性极强。
Aiming to produce high quality hollow tubes, electromagnetic continuous casting technology of hollow tube was studied by applying electromagnetic process technology.
本文以制备优质空心管坯为目的，结合电磁加工技术的应用，研究了空心金属管坯的电磁连铸技术。
The shortcomings of horizontal centrifugal casting machine are analyzed, and a vertical casting unit in structure of double-layered hollow abdomen is designed.
文章分析了卧式离心铸造机的不足，并针对这些不足，设计了一种双层空腹主轴结构的立式离心铸造机。
The extrusion process is a traditional method for the TP2 copper tubes, in which continuous casting solid billet is extruded to hollow tube billet firstly and then drawn to tube.
传统的TP2铜管生产方法——挤压法是由连铸实心铸坯挤压成管坯，再经过拉拔加工成管材。
The drive gears are involute type gears which allow smooth operation, high efficiency and long life. The crankshaft is a hollow one-piece steel casting.
动力端传动齿轮为渐开线齿型，运转平稳、效率高、寿命长。
The drive gears are involute type gears which allow smooth operation, high efficiency and long life. The crankshaft is a hollow one-piece steel casting.
动力端传动齿轮为渐开线齿型，运转平稳、效率高、寿命长。
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