最新刊期
      卷 ， 期 2 ， 1998
      • Zhao Yangpei Pan Ye Sun Guoxiong
        Issue 2, (1998)
        摘要：In this paper, the influence of ingredient of compacts and heating speed on SHScasting Ni3（SiAl） intermetallic compounds has been investigated, and the mold filling capability of synthesis product has been also analysed. It is found that denser Ni3（SiAl） intermetallic compounds can be fabricated by increasing heating speed and selecting proper compacts ingredient. The filling capability of synthesis product is influenced mainly by combustion synthesis temperature and product solidification characteristics.  
        关键词：Self-Propagating HighTemperature SynthesisCasting;Ni3（SiAl）;Densification;Mold Filling Capability   
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        发布时间：2023-12-18
      • Gao Shengji Shen Baoluo Yang Gang Hang Xingjia Tu Mingjing
        Issue 2, (1998)
        摘要：In this paper effect of silicon on mechanical properties and wear resistance of alloys ZnAl27Cu2Six and ZnAl27Mg0.02Six has been investigated. Results show that with silicon increasing the tensile strength, hardness and wear resistance of above mentioned two kinds of alloys increase and plasticity decreases. When the silicon content is 4%, their tensile strength of the ZnAl27Si4Mg0.02 and the ZnAl27Si4Cu2 alloys respectively are 400 MPa and 367 MPa. When above two kinds of alloys contain 2%-4% silicon, the wear resistance is the best.  
        关键词：Zn-Al Based Alloys;Silicon;Wear Resistance   
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        发布时间：2023-12-18
      • Wang Peiyu Xu Shuqing Xue Xinmin
        Issue 2, (1998)
        摘要：Influence of individual addition titanium, cerium and magnesium on solid state phase transformation of Zn-Al alloys was studied in the thesis. The results show that Ti, Ce and Mg can restrain the precipitation of the alloys with varying degrees in artificial ageing.  
        关键词：Solid State Phase Transformation;Artificial Ageing;Precipitation   
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        发布时间：2023-12-18
      • Mao Gaobo Cheng Shizhen Rao Qunzhang
        Issue 2, (1998)
        摘要：A comparative experiment of EPS with PMMA has been made. The behaviors of EPS and PMMA under heating in the temperature range of 100-300 ℃ and the relationships between the amount of gas-evolution at high temperature, time and temperature have been systematically studied. The result showed that the PMMA test sample has volumetric expansion at about 150 ℃, the gas-evolution temperature and velocity of PMMA are higher than those of EPS, and the gasevolution amount of PMMA at high temperature is more than that of EPS.  
        关键词：EPC;PMMA;EPS;Gas-evolution Behavior   
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        发布时间：2023-12-18
      • Yan Shuangjing Jiang Buju Wang Jianli Lu Zhigang Zhang Xianbo
        Issue 2, (1998)
        摘要：Using of FS30 fast drying colloidal silica to make ceramic shell, the drying time is only 2-5 h between dips. The period of shell making with silica sol will be shorten. With FS30 fast drying colloidal silica to replace ethyl silicate the higher production capacity will be obtained and volatile organic emissions will be eliminated.  
        关键词：Faster Drying;Silica Sol;Investment Casting   
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        发布时间：2023-12-18
      • Zhang Jun Duan Hanqiao Gao Jianhua
        Issue 2, (1998)
        摘要：Be aimed at some troubles with producing ZG35CrMnSi alloy steel heavy rollers in China, the technological difficult points in centrifugal casting were analyzed, the related countermeasures were proposed, and the technical barriers were broken down.  
        关键词：Centrifugal Casting;Heavy Roller;Alloy Steel;Defect   
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        发布时间：2023-12-18
      • Qiao Fengqi Cao Haolin
        Issue 2, (1998)
        摘要：The technology of grinding ball by centrifugal casting, the rotational speed, the method for calculation of ingate area and factors influencing technological process were introduced. It is suggested to apply the principle of effective gravity and equivalent pressure head to calculate the rotational speed and ingate area in the processing of grinding ball by centrifugal casting. The grain size in the ball attained up to 6-7 degree and the hardness was uniformly distributed, when the rotational speed within the range 500-700 r/min and each ingate area is not as low as 0.4 cm 2. The moltion law of molten metal in the rotational gate was analysed.  
        关键词：Centrifugal Casting;Grinding Ball by Centrifugal Casting;Filling Process   
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        发布时间：2023-12-18
      • Lin Fan Zhang Shaozong Shi Ruihe
        Issue 2, (1998)
        摘要：Cast monel alloy has been tested. The key of melting and foundry technique is the deoxidation and hydrogen degassing. First the oxidation proceeds for hydrogen degassing, then deoxidation is taken by the refining agents in the test. The determination of oxygen content and express analysis of sectioned sample show that this technique is an effective and convenient way for Monel alloy castings.  
        关键词：Foundry;Casting Monel Alloy;Oxidation for Hydrogen Degassing   
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        发布时间：2023-12-18
      • Yang Guangyu
        Issue 2, (1998)
        摘要：In this paper a practical example of applying the FDM technology to the plaster precision cast process in our institute is introduced, and we successfully produce a thin walled complicated construction part by this way. It is the first practical example in our country. We expect that it is able to offer the beneficial refrences to the foundry trade with effective introduction of the RP.  
        关键词：Rapid Prototyping;Fused Deposition Modeling;Plaster Precision Casting   
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        发布时间：2023-12-18
      • Wang Guiming Li Defu
        Issue 2, (1998)
        摘要：A new compound roll for cold rolling was introduced. This compound roll was produced by a new socalled rotating electroslag method. Namely, the pipe shaped semihigh speed steel electrode remelted by electroslag process in the gap between the crystallizer and the core of forged steel rotating synchronously. As a result, the compound roll was formed with an outer layer of the semihigh speed steel and the core of forged steel.  
        关键词：Compound Roll;Electroslag Remelting;High Speed Steel   
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        发布时间：2023-12-18
      • Xu Shanwen
        Issue 2, (1998)
        摘要：High efficiency reliability and remarkable economic benefit of impregnation technology have been followed with interest by the personnel of various circles.  
        关键词：Impregnation Technology;Saving Engineering for Castings;Impregnation Efficiency   
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        发布时间：2023-12-18
      • Shi Xingli Zheng Ziqao
        Issue 2, (1998)
        摘要：With the application of QC method, combined with the mathematical statistical analysis, The main factors that affect the gas hole are found. The quantity of Ti casting scrap that resulted from the gas hole is greatly decreased by making rational countermeasures and taking proper measures. Productive practice proved that the gas hole defect of Ti castings could be greatly avoided and the quality of Ti castings improved if the research achievements were consolidated.  
        关键词：QC;Ti Castings;Defect;Gas Hole   
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        发布时间：2023-12-18
      • Ye Shengping Luo Jirong
        Issue 2, (1998)
        摘要：A new kind of protective coating for molten aluminium alloy is described. The experiment and practice show that this coating has better adhesive ability, higher thermal stability and better protective effect than ZnO coating.  
        关键词：Molten Aluminium Alloy;Protective Coating;ZnO Coating;Adhesive Ability   
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        发布时间：2023-12-18
      • Tian Hongfu Zhu Zhenguo Li Penghao Hui Xiaowei
        Issue 2, (1998)
        摘要：016 gearbox transmission case is of large size and complex shape, and with high quality requirements. This article from three aspects （melting, gating and overflowwell and airvent system, diecasting technology parameters）, discusses the causes of porosity formation that result in leakage. Accordingly, measures for resolving the problem are proposed.  
        关键词：016 Gearbox;Transmission Case;Leakage   
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        发布时间：2023-12-18
      • Huang Liangyu Zhang Shaozhong
        Issue 2, (1998)
        摘要：Some brief of convinced study result, as the conception of “Critical vetocity of degassing gas”, “Kinetic Balance of ContaminationRefinement” was showed. Raised the discipline for refinement technology of aluminium alloys and explained the interaction phenomenom of Al2O3 with H2 inside the aluminium melt.  
        关键词：Aluminium Alloys;Refinement;Degassing   
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        发布时间：2023-12-18
      • Yang Yajie
        Issue 2, (1998)
        摘要：Applications of numerical simulation technique offer a new tool for casting technological design. Through the flowing and temperature field calculation the criteria can function to find the casting defect located easily. And then an optimized casting technology could be taken to shorten the preproduce cycle, increase the product quality and reduce the cost.  
        关键词：Numerical Simulation;Technology Optimization;Filling;Solidification;Cooling   
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        发布时间：2023-12-18
      • Wu Wei
        Issue 2, (1998)
        摘要：Concurrent engineering and rapid prototyping for die casting are reviewed. Suggestions for applications of CE and RP in China are presented.  
        关键词：Die Casting;Concurrent Engineering;Rapid Prototyping   
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        发布时间：2023-12-18
      • Issue 2, (1998)
        摘要：金属基原位（ＩｎＳｉｔｕ）复合材料的研究现状及发展趋势（下）华中理工大学严有为魏伯康林汉同蔡启舟１．４固┐固反应法１．４．１自蔓延高温合成法（ＳＨＳ）ＳＨＳ法是苏联Ａ．Ｇ．Ｍｅｒｚｈａｎｏｖ等人于１９６７年提出来的，有些文献也称为燃烧合成或自蔓延燃烧...  
          
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        发布时间：2023-12-18
      • Tang Yulin Sun Guoxiong Guo Jinjie
        Issue 2, (1998)
        摘要：The main contents of the new products, materials and uptodate technology displayed at the largest exhibition in the world and the summary of 59 papers of the congress sessions were introduced in this paper. The papers’ summary divided into 11 aspects i.e. simulation, zinc, process engineering, magnesium, process control, aluminium, die materials, machine and relevant equipment die coatings and surface treatment, environmental and safety, advanced technology R & D was present for reference.  
        关键词：Die Casting;Magnesium Alloy;Die Coating;Surface Treatment   
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        发布时间：2023-12-18
      • Issue 2, (1998)
        摘要：ＮＡＤＣＡ第１９届国际压铸会议论文题录（会议于１９９７年１１月３～６日在美国明尼苏达州明尼阿波利斯召开）１模拟Ⅰ（１）压铸工艺凝固过程控制的限度（德国）（２）与充型有关的压铸缺陷的目测方法（美国）（３）流动模拟方法在压铸模设计中的应用（日本）（４）...  
          
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        发布时间：2023-12-18
      • Jorgen G. Hedenhag
        Issue 2, (1998)
        摘要：There are a great number of variables that affect filling conditions in the die and thereby ultimately affect the casting. It is important to eliminate as many of the variables as possible and minimize the effect of the remaining ones. This paper reviews a number of these factors. The shot end is the most dynamic factor effecting the die casting process. A shot control system that compensates for the variables during the shot will facilitate consistent, high quality production. A real time closedloop shot control system is reviewed. The importance of short response time is expiained and a number of shot profiles for different machines and differenct tonnages are analyzed. The importance of low impact based on metal pressure in the die and compensation for variations in biscuit lengths is also explained.  
        关键词：Real Time ClosedLoop Control;Shot End;Die;Die Casting Process;Low Impact   
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        发布时间：2023-12-18
      • Issue 2, (1998)
        摘要：核屏蔽件和运输容器的灌铅工艺国营五二四厂管伯康核工业中的射线防护是伴随着核材料生产同时出现的重要课题。屏蔽是射线防护的重要方法，γ射线是防护的重点，采用重金属屏蔽γ射线最有效，用重金属屏蔽比用轻金属体积小，总重量轻。铅具有高的耐腐蚀性，能抵抗空气的...  
          
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        发布时间：2023-12-18
      • Issue 2, (1998)
        摘要：关于高压开关触头铜尾铸造工艺的改进辽宁秋实公司马春光高压重负载断路器的触头，在开闭时产生强大电弧，故这种触头必须耐电弧烧损、耐熔焊并有一定的力学强度及耐冲击性。从现在已掌握的技术看，这种触头一般设计为顶端是高钨含量的Ｗ－Ｃｕ或Ｗ－Ａｇ合金，尾端再接...  
          
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      • Issue 2, (1998)
        摘要：ＺＣｕＡｌ１０Ｆｅ３蜗轮的生产和工艺设计福州阀门总厂潘榕伦我厂铝铁青铜蜗轮，以前采用传统的工艺，废品多，成品率、出品率极低。这样促使我们尽快寻找出生产铝铁青铜蜗轮缘的新的工艺。根据铝铁青铜体收缩大，容易因渣产生夹杂的特点，进行了多次消除夹杂、缩孔、...  
          
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