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.
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.
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.
为避免此类缺陷产生，必须保证钢锭的浇注质量。
Keeping pouring quality would prevent the ingot steel from forging bursting.
模拟结果表明，该浇注系统填充过程平稳，温度场分布均匀，所得压铸件气体夹杂和冷隔缺陷少，整体质量较高。
Simulated results show that obtained parts has few defects, such as inclusion and cold shut due to smooth mold filling and uniform distribution of temperature field.
铸坯内产生针孔气泡缺陷的原因是钢液脱氧不良，产生大体积气泡缺陷的原因是铸机浇注过程中氩气流量过高。
The defects on pinhole bubble formed in slabs result from badness deoxidization, and the defects on large volume bubbles formed in slabs result from the high flux of argon during casting.
由于浇注速度掌握不好而引起的缺陷。这种缺陷包括飞溅、波皱面以及重皮或折叠。
Defects due to an unsatisfactory rate of teeming. This kind defects include splashing, rippled surface, and laps or folds.
提高金属液浇注温度及改良涂料，选用低密度泡沫塑料作模样材料对避免产生分层缺陷有帮助。
To avoid forming layer defect, rising pouring temperature are using improved coating and selecting low density styrofoam pattern are a great help.
模拟结果表明，该浇注系统填充过程平稳，温度场分布均匀，所得压铸件气体夹杂和冷隔缺陷少，整体质量较高。
Simulation results show a smooth filling, uniform temperature distribution and few flaws such as gas inclusion and cold shut. A casting with a good quality was obtained.
研究了工艺条件(不同固化温度、固化时间和初始反应温度)以及浇注成型产生的缺陷对聚氨酯弹性体力学性能的影响。
Effects of process conditions such as different curing temperature, curing time, starting reaction temperature and casting flaw on polyurethane elastomers mechanical properties are investigated.
然后，本文通过正交试验的方法研究了压射速度、浇注温度和模具预热温度对铸件缩松缩孔缺陷的影响。
By use of orthogonal test design, how the injection speed, pouring temperature and mold temperature effects the casting shrinkage porosity forming is studied.
据此得出平板铸铁件浇注工艺参数的计算公式及图表，可作为防止侵入性气孔缺陷的工艺设计参考。
And the calculation formula and tables of various parameters in gating system could be obtained, which could be used as the reference for preventing the blowhole defects.
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。
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.
由于浇注速度掌握不好而引起的缺陷。
本文介绍了平板类灰铸铁件易产生的各类铸造缺陷及其在生产中常用的各种浇注系统，并分析了各类浇注系统的优缺点。
Some kinds of defects in plate castings of gray cast iron are discussed, and varies kinds of gating systems and their advantages or disadvantages are analysed in this articles.
同时，预测和分析了在实际生产过程中出现的气孔和缩孔缺陷，发现通过降低浇注速度可有效地抑制因合金液的剧烈运动而引起的气孔缺陷。
Then, the defects generated in manufacture were forecasted and analyzed Furthermore, through reducing the pouring velocity, the gas holes generated by the severe movement of the alloy liquid coul...
同时，预测和分析了在实际生产过程中出现的气孔和缩孔缺陷，发现通过降低浇注速度可有效地抑制因合金液的剧烈运动而引起的气孔缺陷。
Then, the defects generated in manufacture were forecasted and analyzed Furthermore, through reducing the pouring velocity, the gas holes generated by the severe movement of the alloy liquid coul...
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