最新刊期
      卷 ， 期 1 ， 1997
      • Li Ziquan Wu Bingyao
        Issue 1, (1997)
        摘要：Pretreatment processing of salt particls and preform made technology by sintering salt grains at high temperature and fabricating process of ZL104 porous Al alloy by means of penetrating casting in the salt grain packing are studied in the paper. Effects of the pouring temperature, pretreating temperature of the grains and the exerted pressure druging the penetration of Al melt on the effective penetrating length for porous Al alloy with some grain diameters have been analyzed.  
        关键词：Penetrating Casting;Porous Al Alloy;Penetration Resisted Forces;Preform   
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        发布时间：2023-12-18
      • Zhu Hexiang Li Zoujian Zeng Guoxun Xiong Huang Yang Weijun
        Issue 1, (1997)
        摘要：This paper dealt with the sliding wear behavior of the SiCp reinforced aluminum matrix composites made by agitation casting method. The wear resistance of MMCs under dry sliding and lubricated sliding conditions was analysed carefully when the loading level was varied, the factors effecting the sliding behavior of MMCs were also discussed. The results show that the wear resistance of MMCs is better than that of base material regardless of the dry sliding or the lubricated sliding case, which is more conspicuous especially under high loading level.  
        关键词：SiCp;Aluminum Matrix Composites;Wear Resistance   
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        发布时间：2023-12-18
      • Li Yan Wan Liying Luo Jirong Huang Naiyu
        Issue 1, (1997)
        摘要：The thermal degradation products of the expandable pattern material for EPC in coating and mould sand are studied by spectrometric identification of organic compounds. The results show that the compositions of the thermal degradation products are complicate. There are aromaties, high alkaneses, alkenes and esters, etc. According to the results, the thermal degradation mechanism of expandable pattern material （EPS） is studied.  
        关键词：Expandable Pattern Material;Thermal Degradation;Spectrometric Identification   
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        发布时间：2023-12-18
      • Chen Huimin Zhou Xiaoping Wang Hongbin Li Sinian\ Chen qin
        Issue 1, (1997)
        摘要：Effect of sulfur on chilling tendency and S/Si ratio on annealing time and graphite morphology for high duty cast iron with high sulfur content in metallic mould was studied. Experimental results indicated that the appropriate sulfur silicon contents were S=0.2%￣0.4%, Si=2.0%￣2.5%, S/Si>0.1. It was suggested that S/Mn played important role for graphite morphology. The mechanism of sulfur effect was discussed.  
        关键词：Sulfur;S/Si Ratio;Chilling Tendency;Metallic Mould;Graphitizing Annealing   
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        发布时间：2023-12-18
      • Zhang Jun Tong Xinglin Wu Zhicheng
        Issue 1, (1997)
        摘要：Based on a statistical analysis of the contributing factors and formation law of centrifugal casting defects in the cylinder sleeve of 170 type refrigeration compressor, some technological countermeasures to prevent defects were proposed and investingated. Production tests showed that by means of improved technological measures the casting reject ratio had been cut down from 18.7%￣22.5% to 2.5￣3.7%, the microstructure and mechanical properties of cylinder sleeves were improved, thus a obvious economic benefit had been obtained.  
        关键词：Cylinder Sleeve;Centrifugal Casting Defects;Reject Ratio   
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        发布时间：2023-12-18
      • Luo Jixiang Hu Jianhua
        Issue 1, (1997)
        摘要：This paper describes processes of extrustion casting for aluminium alloy automobile brake pump cylinder. The optimum die construction and technological parameters are given. The hydraulic system of cylinder to be added on the original equipment possesses universal application meaning.  
        关键词：Automobiles;Aluminium Alloys;Brake Pump;Extrusion Casting   
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        发布时间：2023-12-18
      • Jiang Wenhui Han Xinglin
        Issue 1, (1997)
        摘要：The present work has studied the recently developed Al Ti C B master alloy. Its microstructure and ability to grain refinement of commercial pure Al and Zr containing Al alloy were examined and compared with those of Al Ti B master alloy. The results show that there are Al 3Ti、 TiC and TiB 2 phases in Al Ti C B master alloy, which form small size、 dispersed multi phase clusters; the grain refining ability of Al Ti C B master alloy is superior to that of Al Ti B master alloy; It overcomes the shortcoming of Al Ti B master alloy poisoned by Zr atoms. It is thought that the excellent grain refining properties are attributed to the physical and chemical role of holes of multi phase clusters′ sufaces.  
        关键词：Al Ti C B Alloy;Grain Refiner;Grain Refinement   
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        发布时间：2023-12-18
      • Zhu Hanliang Jia Jun Guo Jingjie Zhao Jiuzhou Li Peiyong
        Issue 1, (1997)
        摘要：New sand mold has been adopted to improve the solidification structure of the alloy. The effects of solution treatment and aging treatment on the mechanical properties have been studied by orthogonal and single experiment. The optimum way of heat treatment has been chosen to make the alloy high strength and ductility.  
        关键词：A357 Alloy;Solidification Structure;Heat Treatment Process   
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        发布时间：2023-12-18
      • Pan Qihan
        Issue 1, (1997)
        摘要：In this paper, a cast Be bronze is mentioned in its chemical constitution, designation, properties, application, rudimentary knowledge on metallurgy, processing method, heat treatment and industrial hygiene. It can be melted by many founding furnaces, for example black lead and Mg/Al crucibles. Its technical parameters are: smelting temperature: 1 300￣1 350 ℃, pouring temperature: 1 100￣1 150 ℃, quenching temperature: 780￣925 ℃, time: 2￣3 h, ageing temperature: 350￣480 ℃,time: 2￣3 h. Its optimum properties: σ b=1 137 MPa, σ 0.2 =1 068 MPa, R c=46, δ ≥1%. It can be used in explosion resistance tool, all kinds of gears, bearing, axle tile, axle sleeve, plastic forming die, toy die, welding electrode, repeater structure of submarine cable and revolution axle of giant electric generator. The beryuiosis can be prevented and treated.  
        关键词：Cast Be Bronze;Die Material;Explosion Resistance Tool Material   
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        发布时间：2023-12-18
      • Wu Bingrong
        Issue 1, (1997)
        摘要：A method of model making with CAD technique and laser moulding device was introduced; moreover, the testing results about using the pattern produced by this method in investment casting were reported.  
        关键词：Model;Laser Model Making;Rapid Prototyping;Investment Casting   
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        发布时间：2023-12-18
      • Song Caifei
        Issue 1, (1997)
        摘要：In China a rapidly growing of automobile industry has been promoting die casting industry. In this paper some basic data regarding the die casting enterprises, equipment, die casting production etc. were given. An analysis about the marketing tendency and developing direction of die casting industry was made. It can be considered that the continuous growth of chinese economy especially the 15 year development plan of automobile industry will promote chinese die casting industry and make it entering to a new highly developing age.  
        关键词：Die Casting;Die Casting Equipment;Die Casting Industry   
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        发布时间：2023-12-18
      • Huang Liangyu
        Issue 1, (1997)
        摘要：A survey of 6 papers concerning nonferrous casting read out on the “62nd World Foundry Congress” was provided. The authers of “Transferred Pressure and Casting Qualities of Aluminum Die Casting” presented a new method of measuring transferred pressure on metal in a die cavity of aluminum high pressure die casting. The effects of transferred pressure and flow velocity on the qualities of conventional aluminum die casting are also clarified. This paper is awarded of Grand Prize in the congress. The “Production of High Performance, Complicated Al Alloy Castings by Squeeze Casting and Semi Solid Die Casting” has opened up a new field of “high technology” die castings, as well as enabling the practical implementation of technologies such as horizontal squeeze casting and semi-solid metal casting. “Intelligent System to Control the Temperature of Permanent Moulds and Dies.” The intelligent system is very effective in auotmatically controlling the temperature of the die. Using this system, dies don’t need to have any cooling system incorporated. “A Hybrid Investment Casting Process for the Production of Metal Matrix Composites” shows that metal matrix composite can be successfully produced by infiltrating an aluminium alloy into a fibre preform located within a ceramic mould. “Microstructure and Wear Behavior of Al Si/SiCp Metal Matrix Composites” noted that SiCp reinforced Al Si metal matrix composites fabricated by spray casting process possessed high wear resistance. “Influence of the Amount of Sodium and Calcium on the As Cast Machanical Characteristics of an 356 Refined with Antimong in Different Solidification conditions” explains the harmful effects of the Na, Ca and shows the relationship between ultimate tensile strength and elongation. The whole result of this study have enabled us to evaluate the statistic correlation between ultimate tensile strength and elongation: σ b（MPa）= 25.87 lg δ （%）+128.85  
        关键词：Diecasting;Spray Casting;Squeeze Casting;Investment Casting;Metal Matrix Composite;Semi Solid Die Casting;Aluminium Alloy   
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        发布时间：2023-12-18
      • Xia Yi Xiao Keze
        Issue 1, (1997)
        摘要：This paper discusses the application of numeric fluid dynamics in casting process. It is considered that the recently developed continuous model can make solidification simulation approach further to actual process. Macrosegregation in ingot can be pridicted by the fluid field modeling during solidification. Calculation can be promoted by adaptative pressure iteration method and can work under a simpler circumstances. It is obvious that fluid field simulation is still a challenging work in foundry.  
        关键词：Numeric Fluid Dynamics;Simulation of Mold Filling   
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        发布时间：2023-12-18
      • Ma Chi
        Issue 1, (1997)
        摘要：Several kinds of crack defects on the internal wall of metallic mould and their effect on rate of end product of nodular iron pipe are analysed and relevant preventatives are presented.  
        关键词：Nodular Iron Pipe;Centrifugal Casting;Metallic mould;Crack defect   
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        发布时间：2023-12-18
      • Lan Xinghe
        Issue 1, (1997)
        摘要：This article describes briefly expendable pattern casting process with cold set resin bonded sands, its main control technique, defect analysis and improvement for heavy iron castings of automobile Cabin stamping die.  
          
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        发布时间：2023-12-18
      • Lan Xinghe
        Issue 1, (1997)
        摘要：This article describes briefly expendable pattern casting process with cold set resin bonded sands, its main control technique, defect analysis and improvement for heavy iron castings of automobile Cabin stamping die.  
        关键词：Automobile Cabine Stamping Die;EPC Process with Cold Set Resin Bonded Sands;Material;Casting Defects   
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        发布时间：2023-12-18
      • Zhu Hongping
        Issue 1, (1997)
        摘要：The coating for metallic mould has the function of heat isolation and lubrication. Reasonable and correct selection of the coating for metallic mould would help controling the metal flow direction and the solidification model.  
        关键词：Metallic Mould;Coating;Heat Isolation;Lubrication   
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        发布时间：2023-12-18
      • Zhang Minlu
        Issue 1, (1997)
        摘要：GW0.25 160 1/KGPS160 1（Rated Capacity 250 kg, Rated Frequence 1 000 Hz, Rated Power 160 kW） crystal tube medium frequence furnace has been reconstructed to rated capacity 70￣100 kg, rated frequence 2 500 Hz （Approximate）, rated power 160 kW crystal tube medium frequence furnace. Due to reconstruction improvement melting time shortened, alloy elements loss decreases, steel melt quality increases, energy consumption drops.  
        关键词：Induction Furnace;Medium Frequence;Crystal Tube   
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        发布时间：2023-12-18
      • Issue 1, (1997)
        摘要：中华民族艺术铸造技术的结晶——《艺术铸造》一书读感南京晨光机器厂张国维盼望已久的《艺术铸造》巨著，终于跟广大读者见面了。无论从图书的装璜、排版和印刷质量，还是从图书的编及其内容来看，都是一部艺术铸造界难于寻觅的专著。只要读者阅读一遍，就会觉得趣味无穷...  
          
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        发布时间：2023-12-18
      • Tan Yingyuan
        Issue 1, (1997)
        摘要：废铝熔炼的新方法武汉船舶工业学校谭银元ＡＮｅｗＷａｙｏｆＲｅｍｅｌｔｉｎｇＳｃｒａｐＡｌｕｍｉｎｉｕｍＴａｎＹｉｎｇｙｕａｎ（ＳｈｉｐＩｎｄｕｓｔｒｙＳｃｈｏｏｌｏｆＷｕｈａｎ）随着铝合金产品的广泛应用，我国每年将产生近百万吨废铝料(如：铝切屑、铝...  
          
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        发布时间：2023-12-18
      • Issue 1, (1997)
        摘要：除气和熔剂喷射的综合效果——提高金属质量派罗特克（ＰＹＲＯＴＥＫ）公司安娜亨利除气和熔剂喷射是为提高铸件质量和减少生产费用的典型方法。多用途除气／精炼剂喷射系统的出现，提供了一个更为便利的途径，同时获得这两种处理方法所带来的好处。使用Ｐｙｒｏｔｅｋ...  
          
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        发布时间：2023-12-18
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