试验研究浇注型PU的动态力学性能。
The dynamic mechanical properties of cast PU were experimentally investigated.
采用浇注型聚氨酯材料，设计了一种管道用胀环试样试验台主密封圈。
Manufactured by casting polyurethane, main seal ring used in expansion ring testing device for pipeline was designed.
主要的类型有浇注型聚氨酯弹性体、混炼型聚氨酯弹性体和热塑性聚氨酯弹性体。
The main types are cast polyurethane elastomer, millable polyurethane elastomer and thermoplastic polyurethane elastomer.
找出了发泡剂为氟里昂- 11的聚醚基浇注型聚氨酯硬泡沫塑料上述弹性性质的经验公式。
The experience formulas for the above-mentioned elastic properties of a moulded PUR foam of polyether base blown by F-11 are presented here.
其特征将离心泵分解成由泵盖及整体蜗壳组合结构，并在过流部位衬里一层浇注型聚氨酯弹性体。
The centrifugal pump is one combined structure of pump cover and integral volute and has one cast polyurethane elastomer lining in the fluid passing part.
采用金属型立式浇铸，严格控制铸造工艺参数(模具温度、浇注温度、浇注速度)，以避免气孔、缩松、冷隔等缺陷的产生。
By using metal mold casting, we can control mold temperature, infusing temperature, infusing speed to avoid defects of pore, cold partition, shrink and loose.
在此基础上，对工作石膏型采用合理的烘烤和浇注工艺，得到了尺寸合格、表面质量好的铸件。
Using proper baking and pouring process for plaster mold, the castings with qualified size and good surface quality could be obtained.
试验结果表明，在考虑的工艺因素中，对充型速度的影响由大到小依次为：模样材料、金属静压头、 涂料透气性和浇注温度。
The results show the relative importance of factors, from most significant to least significant: foam material, metallostatic head, the permeability of the coating, pouring temperature.
本型电流互感器为支柱式结构，采用环氧树脂全封闭浇注，耐污染及潮湿，也适宜于热带地区。
The current transformer is totally-enclosed casting of epoxy resin with support type structure. It is resistant to pollution, damp - proof and it is suitable for tropical regions.
研究了负压度、模样密度、浇注温度、金属静压头等工艺因素对消失模铸铁件充型速度的影响规律。
The filling speed of lost foam cast iron casting was measured by use of an integrated set of experimental equipment and a specially designed computer acquisition system.
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.
本型电流互感器为环氧树脂浇注全封闭穿墙式结构，具有优良的绝缘性能和防潮能力。
This current transformer is fully enclosed, wall through and casting resin insulated. It has a good ability of insulation and anti-moisture.
介绍了如何采用离散型系统仿真力法，以生产实际数据来建立钢锭从浇注到轧制过程的系统仿真模型的做法。
This paper introduces how to apply discrete system emulation method to establish a system emulation model from casting to rolling for steel ingot based on production data.
研制了一套多功能水模拟试验台，适用于重力铸造及低压铸造浇注系统和充型过程的水模拟试验。
Adapting to pouring system and filling mold water imitation of gravity cast and low pressure cast, the multi-purpose water imitation experiment set is studied.
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.
通过改进浇注系统，特别是采取在进、排气道芯砂中添加特殊抗脉纹添加剂及在砂芯表面涂刷烧结型涂料等工艺，有效地预防和消除了脉纹缺陷。
Veining defects have been effectively prevented and eliminated by improvement on gating system, especially by special additive to core sand and sinter coating on surface of sand core.
对于平板类、厚大凹型类铝合金铸件，采用边侧冒口的浇注系统，能提高铸件的补缩效果，生产出合格铸件。
Feeding effect can be improved with qualified casting using side riser gating system for plate or heavy concave aluminum alloy casting.
使用膨胀型复合模铸保护渣保护浇注钢锭，普遍存在的一个问题是容易使钢锭产生头部积渣这一表面缺陷。
A general problem in protecting the casting ingots by using expanded complex mould casting mold powder is the surface defect that slag deposition can be evolved easily in ingots head.
分析了塑件的成型工艺及模具注射成型对塑件质量的影响，介绍了浇注系统的设计，模具分型结构、模温控制的设计。
Analyzed the influence of the plastic part injection molding process to part quality, introduced design of injection mold, mold parting structure design and mold temperature control design.
本文简述了一种在干式变压器生产中具有重要意义的设备——VRC - 3200型环氧树脂真空浇注设备。
In this paper it is introduced the vacuum resin casting plant, VRC 3200, having importance in manufacture of dry transformers.
优化实验后，制备出系列高性能高尔夫球型高铝空心球保温浇注料。
After the optimization of experiment, the golf-shaped bubble bauxite insulating castables with high performance were prepared.
为避免产生热裂应适当降低浇注温度，提高型壳温度。
Proper decrease in pouring temperature and increase in shell mold temperature are helpful to preventing hot tear.
试验研究了浇注后型腔压力对消失模铸造的铝件表面状态、力学性能影响的趋势。
Influence of pressure applied on the mold after pouring on the surface status and mechanical properties of aluminum castings in lost foam casting is investigated.
浇注系统采用非平衡浇道的分布形式，在不影响塑件质量的前提下，既使型腔布局简单，又缩短了分流道的长度。
Non-balance runner distributing form is used in casting system, on the precondition of ensuring plastic parts quality, the cavity layout is simple, and the length of sub-runner gets shortened as well.
注塑工艺中多型腔非平衡浇注系统的平衡状况，在很大程度上影响制品的质量。
The balance of the multicavity unbalancing injection system has great influence on the quality of the parts.
采用箱型截面的大型混凝土桥梁，其结构施工过程中浇注混凝土需要设置临时支撑结构。
Temporary structures are set up to support the formwork when a large concrete bridge with box-section is built.
试验研究了反重力浇注条件下，铝合金消失模真空低压铸造的充型流动特性。
Mold filling characteristics of Al alloy in vacuum lost foam low pressure casting (VLFLPC) under counter gravity condition were examined.
试验研究了反重力浇注条件下，铝合金消失模真空低压铸造的充型流动特性。
Mold filling characteristics of Al alloy in vacuum lost foam low pressure casting (VLFLPC) under counter gravity condition were examined.
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