最新刊期
      卷 ， 期 5 ， 1998
      • Li Yuancai Li Lianjie Wang Wenqing Dai Xuqi
        Issue 5, (1998)
        摘要：The present status of easy shakeout resin coated sand for aluminum alloy is described in detail, and the developing tendency is pointed out.  
        关键词：Al Alloying Castings;Collapsibility;Resin Coated Sand   
        2
        |
        180
        |
        14
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46186965 false
        发布时间：2023-12-18
      • Wang Yizhi
        Issue 5, (1998)
        摘要：The term “Sustainable Development” is defined. The main points of ISO 14000 environment management standards and contents are briefly introduced and emphatically analysed. The problems concerning the environmental pollution are enumerated in die casting enterprise. Active implementation of the formal envinomental management system in ISO 14000 is the urgent task so as to bring great benefit to casting enterprise.  
        关键词：Sustainable Development;ISO 14000;Environment Pollution;Forever Benefit   
        2
        |
        23
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187548 false
        发布时间：2023-12-18
      • Liu Yue Zai Yuchun Gao Wenqing Li Huili
        Issue 5, (1998)
        摘要：The K 2O·6TiO 2 whisker reinforced ZA 27 alloy composites have been prepared by technique of squeeze casting process. The microstructures in the interfaces of the composites were investigated by Transmission Electron Microscope（TEM）. Tensile strength and hardness of the composites were determined. The results show that composite obtained has a uniform whisker distribuction without any porosity. The whisker and ZA 27 matrix has well bonded interface that two interfaces morphologies between K 2O·6TiO 2 whisker and the matrix of Zn Al alloy. The hardness of the composites significantly increases with the increasing of the volume fraction K 2O·6TiO 2 whiskers.  
        关键词：Composite;Potassium Titanate Whisker;ZA 27 Alloy;Microstructure   
        2
        |
        42
        |
        9
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187319 false
        发布时间：2023-12-18
      • Yuan Xiangkai Lu Weihua Wang Ruyao
        Issue 5, (1998)
        摘要：The effect of holding on the mechanicl property for Sr modified AlSi7Mg0.3 alloy has been studied under industrial condition. During Super holding over 60 min. The loss of elongation and toughness is incurred about 20%, compared to loss of 5% in tensile strength, but the hardness is unchanged with time. In this period the Sr content of 0.004% ￣ 0.005% in melt is much more than that （0.003%Sr） required for critical modification. The mechanical property fading for Al alloy would be attributed to attributed lowering of density and increasing of pin hole.  
        关键词：Strondium Modified;Al Si Alloy;Fading   
        2
        |
        154
        |
        34
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188503 false
        发布时间：2023-12-18
      • Wang Li Sun Yimin Bian Xiufang Yan Rongbo
        Issue 5, (1998)
        摘要：A comparison of the refining effect between Al 3%Ti 3%B and Al 5%Ti 1%B master alloys for hypoeutectic Al Si alloys has been made. Experimental results indicated that Al 3%Ti 3%B master alloy has a stronger grain refining effect than Al 5%Ti 1%B master alloy. After addition of Al 5%Ti 1%B master alloy to Al Si alloy melts, excessive Ti on the Ti B 2/melt interface forms a ternary Al Ti Si compound which acts as heter geneous nudeifor α Al during peritectic reaction, But the decrease of peritectic temperature reduction grain refinement; When Al 3%Ti 3%B is added to aluminum melt, excessive B on the TiB 2/melt refines grain by homogeneous nuclei during eutectic rection.  
        关键词：Hypoeutectic Al Si Alloys;Al 3%Ti 3%B;Al 5%Ti 1%B;Grain Refinement   
        2
        |
        147
        |
        14
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187390 false
        发布时间：2023-12-18
      • Xiao Yinxin Kuang Tongchun Cai Yinger
        Issue 5, (1998)
        摘要：The microstructures of working brass with high zinc content up to 50 percent or more in weight have been changed from the inherent structure （α+β） into β phase or （β+γ）, The γ phase, a hard and brittle electron compound, is distributed onto grain boundary of β phase with cellular structure and within β phase grain with coarse star flower like in as cast condition in connection with the detrimental effect occurs during pressure working. A modification technique has been used to change the form, size and distribution of γ phase in the brass with two phases （β+γ）, so that the workability and usability of the brass have been significantly improved. Meanwhile, the hardness and volume fraction of γ phase have also been remarkably decreased by modification.  
          
        2
        |
        109
        |
        16
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188724 false
        发布时间：2023-12-18
      • Sun Daren Yang Xiaohong Zhang Mingzhe Cao Zhanyi Lu You Liu Yongbing
        Issue 5, (1998)
        摘要：In this study, A new foundry technique has been developed in which up to 40% lead can be delivered into the molten aluminium alloy, followed by the alloy pouring with the conventional casting method. The process parameters were investigated. The effects of the lead content and the alloy elements on the microstructures of Al Pb alloy were discussed based on the results of optical microscope, SEM and quantitative metallography observations.  
        关键词：Aluminium Lead Alloy;Cast;Sliding Bearing   
        2
        |
        137
        |
        32
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187852 false
        发布时间：2023-12-18
      • Chen Liliang Liu Ruixiang Lin Hantong
        Issue 5, (1998)
        摘要：According to the characteristics of low pressure casting （LPC）, fluid flow calculations ignoring heat transfer are simplified excessively and hence not correct. In order to simulate the mold filling stage of LPC properly, both fluid flow and heat transfer must be taken into account. Therefore, a 3 D numerical simulation program coupling fluid field and temperature field of LPC has been developed. The practical applications show that the software can be used to analyze the mold filling process of LPC properly.  
        关键词：Low Pressure Casting;Coupling of Fluid Flow and Heat Transfer;Numerical Simulation   
        2
        |
        78
        |
        12
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188763 false
        发布时间：2023-12-18
      • Chen Jincheng
        Issue 5, (1998)
        摘要：Porosity of die castings caused by air entrapped into the liquid metal in the shot sleeve is common problem of die csating process. Based on many works research works and experiments for this respect the theoretic foundation for the technique of slow shot has been laid.  
        关键词：Slow Shot;Air Entrapment;Critical Velocity;Acceleration Process   
        2
        |
        124
        |
        28
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187727 false
        发布时间：2023-12-18
      • Zhang Weixue Lu Zhigang Zhang Xianbo Yan Shuangjing Jiang Buju
        Issue 5, (1998)
        摘要：According to the mathematical statistics theory, an analysis is made using computer on the basis of data collected from mature gating systems, applicability of HengJen formula is checked, and application range of the formula is defined. Furthermore, an improved formula for designing gating system is achieved by the method of multidimensional linear fitting, which agrees well with the practice in a wider range.  
        关键词：Investment Casting;Gating System;Mathematical Statistics   
        2
        |
        211
        |
        3
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46186877 false
        发布时间：2023-12-18
      • Sun Zhicheng
        Issue 5, (1998)
        摘要：In Lost foam process, liquid metal crushing coating is the important cause of metal seeping defects. The most effective solution is to increase the coating thickness or to use high strenteh coating at high tempreture. Attentions have to be paid to coating ingredient, smearing, sand filling and compaction for metal seeping defect prevention.  
        关键词：Lost Foam Process;Metal Seeping;Coating   
        2
        |
        75
        |
        1
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187446 false
        发布时间：2023-12-18
      • Zhang Shao
        Issue 5, (1998)
        摘要：Hydrogen and oxygen solubility in molten copper, condition of gas absorption during smelting of pure coper, mechanism of gas hole formation, gas hole appearance on worked material and measure to gas absorption prevention have been briefly described.  
        关键词：Pure Copper;Gas Absorption;Solution;Solid Solution;Deoxidation;Solubility   
        2
        |
        121
        |
        6
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187292 false
        发布时间：2023-12-18
      • Li Qiang Zhao Meiling Zhang Jing Cheng Zhiqiang Zhao Jianwei Taiyuan Iron and Steel (Group) Co. Ltd
        Issue 5, (1998)
        摘要：The paper mainly discussed the technological process and equipment characteristics of the AOD furnace, the advantages of the AOD technique are proved in the caststeel works.  
        关键词：AOD Process;AOD Furnace;Technological Equipment   
        2
        |
        151
        |
        4
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187222 false
        发布时间：2023-12-18
      • Dai Refang
        Issue 5, (1998)
        摘要：Defect analysis in cylinder sleeve with high performance by centrifugal casting in metallic mold is made. Measure to technological improvement and effect obtained are introduced.  
        关键词：Cylinder Sleeve with High Performance;Metallic Mold;Centrifugal Casting;Defect;Technological Improvement   
        2
        |
        66
        |
        4
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46187766 false
        发布时间：2023-12-18
      • Wang Wuxiao Yuan Sen
        Issue 5, (1998)
        摘要：This paper reviews the research develoment of Al 2O 3/Cu composite and describes the fabrication processes and factors affecting properties of Al 2O 3/Cu composite.  
        关键词：Al 2O 3/Cu Composite;Fabrication Processes;Affecting Factor;Internal Oxidation   
        2
        |
        163
        |
        53
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188624 false
        发布时间：2023-12-18
      • Tan Derui
        Issue 5, (1998)
        摘要：Some problems, concerning the category of art foundry, casting techniques and alloy, the economic and social value of art foundry, the art foundry development in China are discussed.  
        关键词：Art Foundry;The Development;Art Castings   
        2
        |
        154
        |
        5
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188381 false
        发布时间：2023-12-18
      • Lian Haiping Tan Derui
        Issue 5, (1998)
        摘要：In the Eastern Zhou Dynasty, there are a kind of bronze weapons in the Wu and Yue areas, which have lozenge shaped pattern on the surface. Archaeologists and scientists have paid much attention to it since seventies. A fragment of a lozenge shaped pattern sword is examined and analyzed. It is found that the sword was cast with bronze alloy. There was a thin fine dendrite layer in some areas of the fragment surface. Its structure and compositions are different from the matrix in this fragment. This fine dendrite layer has a higher corrosion resisting ability and could protect the sword matrix from corrosion. Several methods of forming the lozenge shaped pattern are simulated, and then a process named tin rich paste coating treatment could successfully form a fine dendrite layer on bronze weapons similar to that of the ancient fragment.  
        关键词：The Eastern Zhou Dynasty;The Lozenge Shaped Pattern Weapons;The Surface Treatment;The Simulated Test   
        2
        |
        210
        |
        8
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188296 false
        发布时间：2023-12-18
      • Tymac Controls Corp
        Issue 5, (1998)
        摘要：Results of an investigation of methods of controlling flash and the application of a real time closed loop shot control system to control impact pressure are presented. The process of making various parts using the high pressure die casting process was examined using a comprehensive process monitoring system and controlled by a seven phase real time closed loop shot control system. The requirements and benefits of the low impact control system are described.  
        关键词：Real Time Closed Loop Control;Flash;Impact Pressure   
        2
        |
        29
        |
        2
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188459 false
        发布时间：2023-12-18
      • Issue 5, (1998)
        摘要：电梯蜗轮，作为电梯传动的主要零件，要求有较高的硬度和耐磨性。铸件不允许有缩孔、夹结等缺陷。２ｔ电梯蜗轮铸件。外径为４６０ｍｍ，外缘轮厚６８ｍｍ，直径与高度之比将近７倍，铸件材料为ＺＣｕＳｎ１０Ｐ１，毛坯质量为６０ｋｇ。１铸造过程及缺陷采用离心铸造，铸...  
          
        2
        |
        109
        |
        1
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 46188486 false
        发布时间：2023-12-18
      0