最新刊期
      卷 ， 期 3 ， 1990
      • Tan Suokui,long Tianfu
        Issue 3, Pages: 3-6(1990)
        摘要：This paper emphasis analyse affecting factors of surface quality of inverstment casting ductile iron. It is proved that kinds of refractory pulverulence, pulverulence binder ratio, pouring temperature are main factors on surface qulity of investment casting ductile iron. Explorting alumino silicate refractory material system such as bauxite pulverulence as the primary slurry will be the best choice for the investment casting ductile iron and its surface qulity is beter than steel casting in investment casting.  
        关键词：球墨铸铁;熔模铸造;表面质量   
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        发布时间：2023-12-18
      • Wei Baikang,Liu Junming,Xu Hongben,Zhen Xuanming,Lin Hantong
        Issue 3, Pages: 7-11(1990)
        摘要：Several metallurgical factors,which include modificationn treatment, compositions and small quantity of additional elements such as Pb, Bi, were discussed on the effects of machinability of hypereutectic Al20%Si alloys. The results indicate that the machinability of alloys can be improved considerably by optimization above factors.  
        关键词：活塞合金;加工性能   
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        发布时间：2023-12-18
      • Zhou Hong,Kang Jixin,Sao Yizhong,Liao Jingming
        Issue 3, Pages: 12-14(1990)
        摘要：Microstructures of Si-eutectic in Al-Si eutectic alloys modified with Sb were investigated by means of SEM.The result shows that microstructure of Si-eutectic may be changed from flake to fibrous staff by Sb, and Sb is similar to Na in modification;but in modifying ability Sb is weaker, more than Na, thus when Sb is used it need’s to cooperate with quickly cooling;flake and fibrous staff both are results of same growthing fashion of Si crystal, if growth speed of Si crystal is slower, staffs join each other by flank growth to form flakes, if the speed is extremely fast, staffs do not change because flanks are too late grown.  
        关键词：AL-Si合金;锑变质   
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        发布时间：2023-12-18
      • Cuj Fenglou
        Issue 3, Pages: 15-17(1990)
        摘要：The paper describes the influence of the percent of miscible water on the processing Quality and performances such as gelatinizing time, flowability, susperisibility of slurry when charging and mixing, on thermal dilatation, strength, aptitude of cracking, surface finish and dimensional accuracy, and pointing out the principles and method to determine the percent of miscible water in production and briefing the influence of the property and temperature of water.  
        关键词：混水量;石膏型;性能;质量   
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        发布时间：2023-12-18
      • Li Zhiming
        Issue 3, Pages: 18-22(1990)
        摘要：In this paper, we make a studies and tests of melt and heat-treattoent for high electric-conductive Cu Cr alloy, and test casting properties of the alloy.At the same time the main points of casting technique of the alloy is suggested.It was proved that the alloy is a high-grade electric-conductive material in electric industry through we have put the electrode holder of electric, are furnance made from the alloy into operation.  
        关键词：铜铬合金;导电材料   
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        发布时间：2023-12-18
      • Wang Juqing
        Issue 3, Pages: 23-25(1990)
        摘要：It had been studied that standard tensile testing samples, technology and performance of Al-alloys with permanent mold in the last few years. The structures are tested against the reality one by one to select the ideal structure of samples form, in order that it gives us reliable datum of production and scientific research. The ideal structures would give the foundryman to reference.  
        关键词：金属型;拉力试棒   
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        发布时间：2023-12-18
      • Wu Shouduan,Cheng Ciling,Dong Dingfu
        Issue 3, Pages: 26-29(1990)
        摘要：In this paper, the effects of pressurizing value on aluminum alloy crystal structure and the mechanical properties in squeeze casting process have been studied. Analysing the experiment results, the pressurizing range suitable to aluminum alloy on squeeze casting process has been explained. It has been proved that to make use of squeeze casting to produce the body of gear pump can get good quality casting of aluminum alloy.  
        关键词：铝合金;挤压铸造   
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        发布时间：2023-12-18
      • Lin Qianzheng
        Issue 3, Pages: 30-32(1990)
        摘要：The Al-ingot used easy pulling can replace Al-2 ingot for producing ZQA19-4 casting is investigated. It is shown not only good in quality, but alsoer lower in cost.  
        关键词：易拉罐铝锭;铝青铜   
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        发布时间：2023-12-18
      • yan Dejiang
        Issue 3, Pages: 33-34(1990)
        摘要：Through investigated the affecting factor of gypsum-MgSO4 dessolvoed core, the best formula has been found  
        关键词：石膏型铸造;硫酸镁水溶芯   
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        发布时间：2023-12-18
      • Liu Zhizhong Huang Guoqi
        Issue 3, Pages: 35-38(1990)
        摘要：Aluminium flat ingot which water-cooling mould casled is acasting way of sowed energy sourse, but, the heavier ingot casting theserious casting crack. The writer finally obtain success through long time testing  
        关键词：铝扁锭;水冷模;调温铸造   
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        发布时间：2023-12-18
      • Issue 3, Pages: 39-43(1990)
        摘要：据生产实践及分析,找出锰黄铜、铝青铜常规、异型大轴瓦、衬套铸件形状参数与冒口形状参数之间的关系,建立较为准确的和实用的计算和核算方法,既能保证铸件充分补缩而又能获得较高的工艺出品率。  
        关键词：砂型铸造;锰黄铜;铝青铜;轴瓦螺套   
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        发布时间：2023-12-18
      • Issue 3, Pages: 44-46(1990)
        摘要：通过六个插图及四个不同的典型实例描述了低压铸造浇口的设计实践。指出浇口横截面积的大小与获得的铸件质量及低压铸造机生产效率三者间的关系。在实践中采用一种易于修正的浇口结构,通过试模修正过程,可使浇口达到理想状态,既满足铸件对铸造工艺的要求,又可得到较高的设备利用率。  
        关键词：低压铸造;浇口   
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        发布时间：2023-12-18
      • Issue 3, Pages: 47-49(1990)
        摘要：提供了一个带有长散热片的复杂纯铜铸件的铸造方法。实践证明,用涂膏涂饰型芯;和用预置型芯法造型对于保证型芯的透气性和提高铸件质量,降低废品率具有明显的效果。  
        关键词：纯铜铸件   
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        发布时间：2023-12-18
      • Issue 3, Pages: 50-51(1990)
        摘要：通过该厂压滤板铸件的生产实践,针对硅黄铜铸件常见的气孔缺陷进行了分析和讨论。实践结果表明,减少合金液的原始含气量和有效地控制金属—铸型反应是消除硅黄铜铸件气孔缺陷的相互关联的两个根本措施。  
        关键词：硅黄铜;气孔   
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        发布时间：2023-12-18
      • Issue 3, Pages: 52-55(1990)
        摘要：本文分析了大发化油器本体铸件结构,介绍了该本体压铸模具的设计要点。  
        关键词：化油器本体;压铸模   
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        发布时间：2023-12-18
      • Issue 3, Pages: 55-56(1990)
        摘要：<正> 以台湾铸造学会秘书长,台湾昶东精铸开发公司董事长陈存时先生为团长的台湾精铸考察团一行十六人,三月八日到大陆考察,在上海铸造协会的陪同下,参观了上海、沈阳、天津等地的十二个精密铸造科研和生产单位,十九日在北京与中国铸协部份理事座谈,二十一日离开。 据介绍,近几年台湾铸造业发展很快,现有铸造厂家二千多个,年产铸件已达12O  
          
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        发布时间：2023-12-18
      • Issue 3, Pages: 57-58(1990)
        摘要：<正> 航空发动机涡轮叶片采用熔模铸造生产时,为提高涡轮叶片铸件抗冷热疲劳寿命,一般采用铝酸钴孕育剂对铸件晶粒进行细化。孕育剂作为型壳工作面层,型壳经高温焙烧以后,孕育剂有时会从型壳上脱落下来,造成型壳报废,型壳废品率最高达50～60％。通过生产实践和试验证明,孕育剂脱落,主要是在制造铝酸钴时的固态反应不充分所造成。孕育剂脱落与模料、粘结剂种类,孕育剂涂料混拌方法,孕育剂涂料粘度还有一定关系。通过试验和调查,找出了孕育剂脱落的原因,采取一些切实可行的措施,解决了孕育剂的脱落问题。  
          
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        发布时间：2023-12-18
      • Issue 3, Pages: 59-60(1990)
        摘要：<正> 双列链轮,如同用一个腹板齿轮在齿宽中心车出一道沟槽,而齿形是链传动齿形。 一、铸造工艺方案的确定 铸造双列链轮,材质要求为ZG45,铸件重量4.7kg。 熔模精密铸造组成模组的形式,最常用的有两种:一种是组焊;一种是组合式。双列链轮要求最严格的部位是齿形。要求齿形正确、平整,节圆椭圆度要小,光洁度要高,节径和节距必须控制在一定的公差  
          
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        发布时间：2023-12-18
      • Issue 3, Pages: 60(1990)
        摘要：<正> 中国铸造协会与中国国际贸易促进委员会协商并经机电部同意,对外经济贸易部批准,决定从1990年开始,每2—3年定期举办国际铸造展览会,首届将于1990年6月8日～14日在北京中国国际展览中心举行。  
          
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        发布时间：2023-12-18
      • Issue 3, Pages: 61(1990)
        摘要：<正> 在加盖的燃油炉中,用石墨霸锅熔制二元铝合金,如用来作一些铝合金铸造用的中间合金Al-Si、Al—Mn等,要比一般铁质坩锅熔制的质量好得多,不但可以降低有害杂质Fe的含量,而且熔化速度快,但如果进一步改变一下加料顺序,采用“倒装法”,则效果更好,能减少原材料的损耗,取得含量比较稳定的合金。 按常规,熔制Al—Si、Al—Mn二元合金,加料顺序是先加入纯铝进行加热熔  
          
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      • Issue 3, Pages: 62(1990)
        摘要：<正> 为总结近年来熔模铸造用耐火材料粒度级配的研究结果,促进精铸行业的技术进步,全国铸造学会特种铸造及有色合金专业委员会组织召开了“熔模铸造用砂粉粒度级配”学术研讨会。研讨会委托沈阳铸造研究所和清华大学主办,1990年4月16日至18日在清华大学举行。 全国铸造学会前理事长荣科、铸造学会秘书处发来了贺信。铸造学会常务理事、机电部科技司蒋乃隆高级工程师到会并就砂粒粒度级配研究在七五重点科技攻关研究中的发展  
          
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        发布时间：2023-12-18
      • Issue 3, Pages: 63(1990)
        摘要：<正> 会议于5月5～8日召开,有27位理事和学会所属3个杂志的代表到会。 会题听取了铸铁、铸钢、特铸及有色、造型材料及工艺、铸机等七个专业委员会,中国铸造史、稀土在铸造合金中的应用等三个专题委员会,国际交流、指导性技术文件等三个工作委员会以及“铸造”、“中国铸机”、“特种铸造及有色合金”等三个杂志的汇报。会议议定的主要事项有:  
          
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