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精铸件
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  investment castings
     Structure Optimization Design of Investment Castings
     精铸件结构优化设计实践
短句来源
     Three-Dimensional CAD Foundry Technical Design of Investment Castings Based on Solidworks
     基于Solidworks的精铸件三维CAD铸造工艺设计
短句来源
     Improving Quality of Investment Castings by Strengthening Process Control
     强化生产过程控制 提高精铸件质量
短句来源
     The effects of additive in the silicasol back coating slurry on the weight of investment castings are investigated.
     试验考察了硅溶胶精铸型壳的背层浆中加入高温焙烧易挥发性添加物对精铸件重量及其分布的影响。
短句来源
     The gap between investment enterprises at home and abroad was described,and improving quality of investment castings by strengthening process control was reviewed.
     分析了国内不锈钢精铸企业与国外的差距,总结了强化生产过程控制,提高精铸件质量的经验。
短句来源
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  precision casting
     Quality Control of Towing Hook in the Precision Casting
     拖钩类精铸件的质量控制
短句来源
     Application of Precision Casting to Bus Transmission Shaft
     精铸件在汽车传动轴上的应用
短句来源
     Defect Analysis of the Precision Casting of Brake Rotor and Countermeasures
     刹车转子精铸件的缺陷分析及工艺对策
短句来源
     Arc Welding for Precision Casting
     精铸件的埋弧补焊
短句来源
     The Study of Large Thin wall Complex Integrated Titanium Precision Casting
     大型复杂薄壁类钛合金精铸件的研制
短句来源
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  precision castings
     The study and application of work process of acidic pickling and inactivation for CF8 and CF8M stainless steel precision castings
     CF8和CF8M不锈钢精铸件酸洗钝化工艺的探讨与应用
短句来源
     Study on Pouring System Design Method of Large Dementional Complicate Aluminium Precision Castings with Barrel Structure
     大尺寸复杂筒状铝合金精铸件浇注系统设计方法研究
短句来源
     The surface quality of the moulding shell is the key factor influencing the surface quality of precision castings.
     影响精铸件表面质量的关键因素是型壳表面的质量。
短句来源
     Foundry Technology of Electrical Pure Iron Precision Castings
     电工纯铁精铸件的铸造技术
短句来源
     With the rapid development of the domestic economy, it is obvious that the demands for precision castings will be improved day by day.
     随着国内经济的飞速发展,显然对于这些精铸件的要求将会日益提高。
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  “精铸件”译为未确定词的双语例句
     Formation and Elimination of Point Defects in 304 Stainless Steel Castings
     304不锈钢精铸件点缺陷的形成与控制
短句来源
     Study on Vacuum Suction Process for Complicated Thin-walled Aluminum Alloy Castings
     薄壁复杂铝合金精铸件真空吸铸工艺研究
短句来源
     Why Mechanical Properties of ZG35CrMnSi Fine Casting Unacceptable
     ZG35CrMnSi精铸件机械性能不合格原因分析
短句来源
     Solidification techniques of Ni3Al thin wall parts are optimized by using Procast software in this study, and rationality of casting parameters is analyzed through simulation of temperature fields and fluid fields. In addition, high mold temperature casting is applied to realize successive filling and improve quality.
     文中运用Procast铸造模拟工程软件对薄壁件铸造过程的流场、温度场及应力场等进行模拟,对Ni3Al基合金大尺寸薄壁精铸件的精密铸造工艺进行了优化,采用Ni3Al基合金复杂薄壁件的高模温铸造,从而实现了薄壁件的顺利充型,并提高了薄壁件的质量。
短句来源
     Practical experience shows that the process can improve the casting surface roughness and size precision 1-2 grade compared with process of the shell moulding with sodium silicate, and can reduce the production cost of castings 3900 yuan per ton comparad with process of the shell moulding with ethyl silicate (30) .
     生产实践表明,该工艺生产的精铸件表面粗糙度和尺寸精度比水玻璃型壳提高1~2级,生产成本比硅酸乙酯(30)型壳节约3900元/吨。
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  investment castings
The use of vacuum to fill molds to form investment castings in a countergravity casting fashion was started in the early 1970s.
      
Reduction in the development lead times of complex investment castings by the application of CIM technology
      
A set of nickel-based superalloy single-crystal investment castings was evaluated for crystal perfection.
      
3-Dimensional simulation of the grain formation in investment castings
      
The results of QDS experiments are discussed with regard to the range of microstructural and chemical heterogeneities determined within Ti-48Al-2Cr-2Nb investment castings.
      
更多          
  precision casting
The use of water glass in the precision casting of products from fused silicates
      
Cristobalite dinas - A filler for molding mixtures for precision casting of jewelry parts
      
The dinas briquettes have been introduced in Russian Gems Production Union as the filler in molding mixtures for precision casting of jewelry parts, which has made it possible to eliminate importing of these mixtures.
      
Quality C/A356 composites have been fabricated by this technique with the investment precision casting molds at a pressure of 0.6 MPa.
      
The high-quality precision casting of titanium alloys
      
更多          
  precision castings
Production of ceramic molds for precision castings
      
A new method of producing the precision castings in magnetic molds
      
Improving the method of preparation of ceramic molds and cores for precision castings
      
Precision castings of the Ti-6Al-4V alloy containing pore defects were hot isostatically pressed (HIP) in an attempt to improve the high cycle fatigue strength.
      
Investigation of accelerated heat treatment of precision castings of steel
      
更多          


In this paper a new technology of the high-strength sodium silicate mold shell with thin wall and less layer shell is developed. The action mechanism of alum in a is discussed. The sluny with high proportion of pcwdcr-material to liquid ard the influence of diyirg the primary shell before curing on strengthing the mold shell are restaiched. And it is pointed out that measuring flow-cup visccsity and dipping weight of the specimen is a active method of controlling the quality of the sodium silicate slurry. The...

In this paper a new technology of the high-strength sodium silicate mold shell with thin wall and less layer shell is developed. The action mechanism of alum in a is discussed. The sluny with high proportion of pcwdcr-material to liquid ard the influence of diyirg the primary shell before curing on strengthing the mold shell are restaiched. And it is pointed out that measuring flow-cup visccsity and dipping weight of the specimen is a active method of controlling the quality of the sodium silicate slurry. The research resutls show that the presision casting of close tolerence and excellent finish is obtained by using three layer shells for the less weight casting and four-five layer shells for the middle-large weight casting. As compared with the conventional shell, the finish of the casting is increased 1 grade.

本文对少层薄壁高强度水玻璃型壳新工艺进行了研完,探讨了铝矾土的作用机理,高粉液比涂料及面层型壳硬化前的干燥对强化型壳的作用,并指出测流杯粘度及试块的涂挂重量是控制涂料质量的有效方法。研究结果表明,小件只需三层,中大件只需四、五层就能获得精度、光洁度好的精铸件,与普通型壳相比,铸件光洁度可提高一级。

Abstract

钛合金叶轮具有比重小、比强度高,抗腐蚀性好的特点,适宜在一些腐蚀性环境中使用。我们用熔模石墨型壳系统浇注了两种不同尺寸的叶轮,用于高速飞机空调系统和油田回收轻烃装置,获得了成功。叶轮经X光、荧光渗透检查,内部和表面质量良好,表面光洁度达(?)4~(?)5,表面沾污层深度0.10~0.15毫米,叶轮尺寸精度与其它有色合金熔模精铸件相当,成品率大幅度提高,叶轮机械性能合格。

Abstract

本文叙述了制做钛合金熔模铸件的制壳材料及工艺。其中对ZTS—1型树脂、石墨粉粒度级配、涂料配制及性能和覆膜砂硬化型充工艺等方面进行了较详细的分析和探讨,为改进精铸工艺,提高精铸件质量提出了新的见解。

 
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