1)  investment casting
精密铸造
1.
Influence on anti-corrosive pump performance by investment casting closed impeller;
精密铸造闭式叶轮耐腐蚀泵的性能
2.
Developing Tendency of the World's Investment Casting-Profile of the 26~ st Conference of Investment Casting at the Europen;
世界精密铸造发展动态——第26届欧洲精密铸造会议见闻
3.
Application of SKP-27 Rapidly Dried Sol Silicate in the Investment Casting;
SKP-27型快干硅溶胶在精密铸造中的应用
2)  investment casting
熔模精密铸造
1.
Ring Nozzle in Investment Casting;
环形喷嘴的熔模精密铸造
2.
Shellmould Fabrication for the Investment Casting of Titanium Aluminides;
TiAl基合金熔模精密铸造用型壳制备工艺研究
3.
Adding Al before tapping,the lathe tool is produced by investment casting with W18Cr4V scrap inthe intermediate frequency induction furnace.
将W18Cr4V高速钢废料,采用中频感应炉熔炼,出钢前加Al,熔模精密铸造车刀刀具,经淬火和四次回火后,硬度达HRC64。
3)  investment casting
熔模精铸
1.
Study on metal/shell interaction in ZrO 2 ceramic mould during titanium investment casting;
钛合金熔模精铸氧化锆陶瓷型壳/金属界面反应研究
2.
Study on Rheological Properties of Colloidal Zirconia Sol Coating Slurry for Titanium Alloy Precision Investment Casting;
钛合金熔模精铸锆溶胶涂料流变性能的研究
4)  investment casting
精密铸件
1.
Based on solidification and shrinkage theory of molten metal and fluid How theory through porous media, a mathematical model of predicting microporosities in Ti-Al alloy investment castings has been established under the condition of centrifugal pressure;.
根据金属液凝固收缩理论和多孔介质中流体流动原理,建立了离心压力下Ti-A1台金精密铸件中微观缩松缺陷预测的数学模型,采用该模型对Ti-Al增压涡轮铸件进行模拟计算,并进行了实验验证,结果表明,数学模型能够合理反映离心转速,离心半径、温度梯度和冷却速度等重要因素对微观缩松的影响规律,数值模拟结果与实验结果相吻合。
5)  investment casting
investment casting
1.
Some problems in the production of ductile irons by investment casting;
Some problems in the production of ductile irons by investment casting
6)  investment casting
失蜡铸造
参考词条
补充资料:精密铸造


精密铸造
precision casting

精密铸造(preeision easting)用精密铸型获得精密铸件的方法。通常指熔模铸造或失蜡铸造,即利用可以熔化的材料制成整体或分件的铸型以获取精密铸件的铸造方法。采用石蜡、硬脂酸为主要原料的合成蜡料压成蜡模,并使多个蜡模组装于同一浇道,在以水玻瑞或硅酸乙脂作粘结剂的耐火材料(石英粉或错石粉等)浆液中多次重复浸溃,使蜡模表层形成一定厚度的多层型壳,待型壳硬化后浸人温度高于蜡料熔点的水中化去蜡模,此型壳经高温焙烧即可投人浇注获得铸件。铸件的合金材料多采用合金钢,其重量和尺寸受蜡模性能的限制,尺寸一般不超过1米。 精铸件具有广阔的适用范围,重量从0.5克到700千克,厚度从0.25一1.2毫米到75毫米;内孔直径0.5一5毫米的铸件,均可达到ITll一13级精度(砂型铸钢件仅为IT16一18级);拔模斜度可为零;表面粗糙度能至凡l一3微米;加工余量可小至0.35一0.8毫米。精铸件的表面粗糙度取决于耐火材料的品种、粒度和粘结剂;尺寸精度取决于蜡料性能和粘结剂。由于工艺过程复杂,原辅料成本高,铸件成本相应增高,因而精密铸造仅用于要求较高的铸件生产。 在中国,农业机械制造业是采用精铸件最多的工业部门之一,多数工厂设精铸工段、车间或分厂,如洛阳第一拖拉机厂精铸分厂生产能力达年产20()0吨,建有自动化的涂层型壳生产线。(张伯明)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。