铸造性
- 网络castability;Casting
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针对近净形铸件开发中存在的问题,建立了适于对复杂结构铸件及其工装设计、铸件的可铸造性评价、铸件成形过程仿真和制作快速样件等的并行开发环境。
A concurrent engineering environment for developing complicated near net shape casting has been built , which is applied to design casting and tools , to evaluate castability , to simulate casting processes , and to fabricate rapid prototype etc.
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合金B、C、D耐蚀性好,但铸造性、抗应力腐蚀性能差。
The alloys B , C , D exhibited a high corrosion resistance but inferior in casting properties and SCC .
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镁合金具有很多优良的特性:低密度、高的比强度和比刚度、优良的机械加工性能和铸造性、高的热导率、优良的电磁屏蔽性能以及可回收利用等。
Magnesium alloy has some advantageous properties , including low density and high strength / weight ratio , good machinability and casting ability , high thermal conductivity , very good electromagnetic features and being easily recycled .
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车圈用材料富稀土变质铝合金不仅改善合金力学性能,经试验可使合金流动性增加,液相点、合金表面张力和线收缩下降,对合金铸造性大为改进。
The used lanthanum-rich rare earth modified alloy can not only improve the mechanical performance and the flowability but also cause the decline of liquid phase point , alloy surface tension and linear contraction , which is helpful to casting ability .
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新型牙科用Ti合金铸造成型性研究
Casting Forming of New Dental Ti Alloy
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过共晶Al-Si合金具有密度小、强度高、耐磨性好,耐蚀性好,线膨胀系数低、铸造成形性好和加工性能优良等这一系列优点。
Hyper-eutectic Al-Si alloy has a series of advantages , such as small specific gravity , good abrasion resistance , good corrosion resistance , low expansion coefficient and excellent casting forming and processing properties .
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结果表明,原位VCP增强钢基复合材料具有浇铸温度低(1723~1773K),铸造成型性好的特点,适用于制备体积分数较高的颗粒内生复合材料;
The results show that in situ VC P / steel composite has low pouring temperature ( 1723 ~ 1773 K ) and good cast forming . It is suited to fabricate the in situ composite that demands a large reinforced particle volume fraction .
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A1/TiC复合材料铸造流动性的研究
Study on the fluidity of the Al / TiC Composite
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6061方锭铸造成型性研究
Study on Casting Formability of 6061 Alloy Billet
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包埋料和热处理对自研贵金属合金铸造适合性的影响
Effects of investments and heat treatments on casting accuracy of a low-gold dental casting alloy
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热处理对金合金铸件的铸造适合性无显著性影响。
Heat treatments had no significant influence on the marginal fitness of castings made by BS1 low gold dental casting alloy .
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又因其增强物为微球,有利于减小应力集中,延缓裂纹萌生与扩展,同时也提高了铸造流动性和塑性成形能力。
The geometry of microspheres benefits decreasing the stress concentration around reinforcements , deferring the initiation and propagation of the crack , and increasing casting fluidity and plastic formability .
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分析研究了6061合金方锭铸造成型性较差的原因,以及化学成分,铸造工艺对成型性的影响,通过调整化学成分,改造铸造工艺,降低了合金的裂纹倾向,提高了铸锭的成型性。
The cause of poor casting formability of 6061 alloy billet and the effect of chemical composition , casting process on formability are analyzed and studied . The cracking inclination of alloy is decreased and formability of ingot is improved by means of adjusting chemical composition and improving casting process .
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试验结果表明,M3C型碳化物定向排列以后,不论在硬磨料(石英砂)还是在软磨料(玻璃砂)条件下,相对于砂型铸造试样耐磨性均有提高。
The results indicated that the abrasive wear resistance of specimens with unidirectionally arranged carbide is better than that of sand casting ones .
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钠磷酸盐无机铸造粘结剂改性研究
Study on Properties of Inorganic Sodium Phosphate Casting Binder by Modification
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但是该合金的铸造和塑性加工性能差。
However , its casting character and formability are poor .
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酚馏分-糠醛树脂将壳型铸造的适用性
The Use of Phenol Fraction-Furfural Resin in Shell Moulding Process
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云母对消失模铸造涂料浸润性的影响
Influence of Mica on the Wettability of Coating in EPC
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镁合金铸造缺陷塑性变形弥合与修复过程
Closing and repairing process of Mg alloy casting imperfections in plastic deformation
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铸造用改性糯米粉砂芯粘合剂的研究
Study on Foundry Core Binder of Expansion Intertexture of Polished Glutinous Rice Powder
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铸造用改性淀粉粘结剂的研制和应用
Development and Application of a Modified Starch Foundry Binder
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展示了中大型工艺品采用消失模铸造的优越性。
The superiority to manufacturing middle-large art casting in lost foam casting is presented .
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真空实型铸造涂料透气性的研究
The Study on Coating Permeability of EPC Process Coating for Vaccum Evapouration Pattern Casting
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不同因素对可摘局部义齿铸造支架适合性影响的实验研究
The Study of the Influence of Different Factors on the Fit of RPD Frameworks
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黄麻纤维对消失模铸造涂料透气性和强度的影响
Effect of Jute Fiber on Permeability and Strength of Coatings for Lost Foam Casting
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这类合金通常经过铸造,塑性加工和热处理来获得要求的性能和组织。
The alloys are usually fabricated through casting , plastic working and heat treatments .
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负压实型铸造在实践性教学中的应用
EPC and application in the practice teaching
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消失模铸造铸型透气性分析
Analysis of Mould Permeability in EPC
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介绍了消失模铸造的优越性、所用原材料、常见缺陷、工艺技术问题,并指出了其发展前景。
The superiorities , the raw materials , the common shortages and the problems of technique of EPC are introduced , and points out its developmental prospect .
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金属的铸造、塑性成形、热处理等过程会使晶粒的尺寸大小、取向分布、形状等发生一定的变化,产生不同的微结构。
During the casting , plastic forming , and hot processing , the sizes , orientation distributions , and boundary structures of the crystallites change and produce various microstructures .