最新刊期

    卷 , 期 6 , 1989
    • Yu Xiude,Yu Donge
      Issue 6, Pages: 3-7(1989)
      摘要:The shape, size and distribution of the eutectic silicon particles in Al-Si alloys could be improved effectively by heat-treatment. And so Al Si alloys could have better mechanical properties. The eutectic silicon particles in unmodified Al-Si alloys, which also have high energetic inhomogeneity in casting states,could be spheroidized rapidly.  
      关键词:共晶硅;粒化   
      2
      |
      124
      |
      24
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195818 false
      发布时间:2023-12-18
    • Issue 6, Pages: 7(1989)
      摘要:<正> 第七届国际铸造博览会和第56届世界铸造会议于1989年5月20日至26日在西德Dusseldorf举行,世界各重要工业国家都派出了最强阵容参加竞争。在647个展台中,压力铸造十分引人注目,占有相当大的比重。给人总的印象是:设备和模具先进,追求高经济效益,配套齐全;计算机软件已渗透到压铸件查询、模具设计与制造、压铸过程控制、压铸件生产和检验。压铸件销售等压铸各个领域;相互技术封锁严密,竞争剧烈。  
        
      2
      |
      3
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195772 false
      发布时间:2023-12-18
    • Wu Weigang,Chen Xiaolong
      Issue 6, Pages: 8-11(1989)
      摘要:In this paper; the influence of pouring temperature, properties of polystyrene foam and modulus of casting sections on the temperature distribution during filling mold for Al-Si alloy, as well the scab formation on the casting surface in evaporative pattern casting process is studied  
      关键词:气化模铸造;铝合金铸件;皱皮   
      2
      |
      15
      |
      2
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195725 false
      发布时间:2023-12-18
    • Geng Haoran,Ma Jiaji
      Issue 6, Pages: 12-16(1989)
      摘要:By means of orthogonal expriment method, the chemical compositions of a Al-Pb-Cu antifriction alloy are designed and a new type of aluminum base antifriction alloy has been developed.Testing results show that it is possible to replace the tin bronze as making some bushes and axle sleeves.The alloy costs 4/5 less than the tin-bronze ZQSn6-6-3.  
      关键词:Al-Pb-CU合金   
      4
      |
      13
      |
      4
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195472 false
      发布时间:2023-12-18
    • Zhou Zicheng,Liu Yaohua,Fu Chaorong
      Issue 6, Pages: 17-21(1989)
      摘要:The process of shell moulding with composite coatings of colloidal silica and sodium silicate is discussed in this paper. The physi-cochemical change during combined drying by far infraredhet blast is investigated. Several strengthening solutions for interface of the composite are developed.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) .  
      关键词:硅溶胶;复合制壳   
      2
      |
      63
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196733 false
      发布时间:2023-12-18
    • Lu Hongyuan,TangHuibo,Xu Yongbo,Kuang Yunlie
      Issue 6, Pages: 22-25(1989)
      摘要:The lubricant of plunger is made from natural oil and some functional additives by means of chemical polymerization and the lubricant is excellent in the technological characteristics. This paper introduces the technological process of polymerization,testing contents and methods, performance index and practice of the lubricant.  
      关键词:压铸;润滑剂;冲头   
      2
      |
      63
      |
      2
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195922 false
      发布时间:2023-12-18
    • Zhang Yizhong
      Issue 6, Pages: 26-29(1989)
      摘要:This paper probes the relationship between mechanical property and chemical composition, tensile strength and hardness in the casting of non ferrous metals in order that the optimal mechanical performance can be attained.  
      关键词:铜合金;机械性能   
      2
      |
      33
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196333 false
      发布时间:2023-12-18
    • Liu Liping,Shen Qiwen,Xiu Jiping
      Issue 6, Pages: 30-33(1989)
      摘要:Two kinds of additives are chosen for improving collapsibility of ceramic mold.Experiments and studies show that the carbon-base or the resin-base additives can impede or reduce sintering. The additives make the shake-out efficiency of ceramic mold distinctly be enhanced  
      关键词:陶瓷型;溃散性;附加物   
      2
      |
      37
      |
      2
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196214 false
      发布时间:2023-12-18
    • Zhou Yulin,Liu Xiaoping,Zhan LI,Wei Zhiqing,et al.
      Issue 6, Pages: 34-37(1989)
      摘要:The mechancial properties and metallographic structure of Al 12Si 2Cu alloys with 0.10.25 wt% mischmetal have been investigated on the gravitational and pressure casting samples. The fluidity of the liquid alloys and thermal cracking stress of the alloys in solidification determined.It was shown that if additional 0.10.25wt% mischmetal is added to the Al-12Si-2Cu alloy, the primary a Al phase will be preferentially formed, and the eutectic silicon phase will be informed of a small bar or a particle, but not a needle. As a result, the strength and the elongation of the alloy were increased and the resistance to thermal cracking was obviously improved.  
      关键词:稀土;Al-Si-Cu合金   
      2
      |
      97
      |
      11
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195500 false
      发布时间:2023-12-18
    • Issue 6, Pages: 38-39(1989)
      摘要:本文通过对铝合金细孔件的铸造工艺的生产实践,得出:该项工艺将减少原材料的消耗,提高产品质量,具有先进性和可行性。  
      关键词:铝合金;细孔铸件   
      2
      |
      29
      |
      2
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196289 false
      发布时间:2023-12-18
    • Issue 6, Pages: 40-42(1989)
      摘要:本文介绍了印花用钢辊的低锌黄铜铸件,采用离心铸造工艺。为了克服铸件在生产中出现的缺陷,在理论分析的基础上,进行了一系列的试验研究。对熔炼工艺、模具、浇注工艺等采取了相应的措施,使得这种特殊的铸件在生产中成为合格的产品起到有力的保证。  
      关键词:离心铸造;铜辊   
      2
      |
      20
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196022 false
      发布时间:2023-12-18
    • Issue 6, Pages: 43-45(1989)
      摘要:本文简述金色铜合金(即通体一致金黄色泽的仿金材料)的熔铸。包括其基本原理、成分的选择和配比、熔铸工艺。  
      关键词:金色铜合金;熔铸   
      2
      |
      74
      |
      3
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195874 false
      发布时间:2023-12-18
    • Issue 6, Pages: 46-48(1989)
      摘要:本文参照国外自动浇注机浇注铝活塞的经验,结合本厂金属型重力铸造铝活塞的生产实践,以内腔结构较复杂、壁厚差较大的BJ212活塞为例,采用缩小浇冒口比重和活塞模具通水、通气加快冷却的方法,增加活塞在型腔中冷却时的温度梯度,促成顺序凝固,从而降低铸造废品率,提高铸件内在质量。  
      关键词:铝活塞;缩松   
      4
      |
      52
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195981 false
      发布时间:2023-12-18
    • Issue 6, Pages: 49-52(1989)
      摘要:本文较详细地研究了石膏型熔模铸造工艺参数及石膏混合料配方。通过对石膏中各种添加物及成分配比试验研究,探讨了几种耐火材料作为填料加入对石膏混合料性能的影响,提出了几种石膏混合料配方。同时对铸造工艺整个过程作了一定程度的叙述。  
      关键词:石膏型;铝合金;铸造工艺   
      2
      |
      123
      |
      1
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195794 false
      发布时间:2023-12-18
    • Issue 6, Pages: 53-54(1989)
      摘要:本文对多孔铝合金的制造原理、铸造工艺及该类合金的性能进行了探讨,并对今后的应用前景提出了看法。  
      关键词:海棉铝合金   
      2
      |
      71
      |
      28
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196511 false
      发布时间:2023-12-18
    • Issue 6, Pages: 54(1989)
      摘要:<正>北方压铸技术会议,于1989年10月18日至20日在天津召开,参加会议的74名代表,来自冶金、机器仪表、航空航天等行业部门,共56个单位,跨越15个省市,  
        
      2
      |
      4
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196253 false
      发布时间:2023-12-18
    • Issue 6, Pages: 55-56(1989)
      摘要:<正> 水平连续铸锭工艺,目前国内普遍采用的是单向连续铸造法。其中有单向单头连铸,也有通过加大保温炉尺寸,采用两个结晶器、两套牵引机构的单向双头连铸。但随着生产能力的不断扩大,单向单头连铸已越来越不适应。而单向双头连铸:一是保温炉单向尺寸大,成本高;二是得采用两套牵引机构,一次性投资大;三是操作上不能保证绝对安全,所以也不能满足一般厂家的要求。针对这一现状,我厂研制出双向多头水平连铸新方法,解决了单向连铸的不足。  
        
      2
      |
      20
      |
      1
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196000 false
      发布时间:2023-12-18
    • Issue 6, Pages: 57-58(1989)
      摘要:<正> 一、问题的提出 我厂年生产精铸件200吨,最大件重49.5公斤,最小件重0.01公斤。3公斤以上的铸件占80%(按质量计算)。铸件材质主要是碳素钢(ZG45、ZG35)和低合金钢(ZG40Cr),其次是灰口铸铁。全部为机床零件。一台150公斤可控硅中频感应电炉。3台H75(Kx-75-9)箱式电阻炉焙烧型壳。于近年使用结晶氯化铝作硬化剂。同时,由于铸件大,对型壳高温强度要求高,也将石英制壳材料用铝矾土熟料代替,工人的矽肺病也大大减少。工艺参数如表1所示。  
        
      2
      |
      39
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196311 false
      发布时间:2023-12-18
    • Issue 6, Pages: 59-60(1989)
      摘要:<正> 不锈钢螺旋桨叶(图1) 是化工机械设备搅拌器的一个主要部件。采用砂型铸造,制模(实柞模型)较难,并且铸件尺寸精度低,表面质量差,加工成本高。螺旋桨叶实样模型的制造,要求叶片等分误差及扭角误差小,叶片尺寸精度高。由叶片木模经翻砂铸造一组铝合金叶片,加工成实样模型。另外模型的轴毂表面必须有相反的拔模斜度。这些都给实样模型的制造带来一定难度。  
        
      2
      |
      61
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46195759 false
      发布时间:2023-12-18
    • Issue 6, Pages: 61-63(1989)
      摘要:<正> 金属型平板型铸件的浇注系统——1988,78,№.12,24~25 第22届世界铸件生产统计(1987年)——1988,73,№.12,32~33 第55届国际铸造会议技术报告摘要——1988,78,№.12,36 Ford公司铸造分部采用统计法控制来减少铸件缺陷———1988,78,№.12,37~40 边冒口和冒口颈的估算——第1部分——1988,78,№.12,42  
        
      2
      |
      8
      |
      0
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196804 false
      发布时间:2023-12-18
    • Vol. 0, Issue 6, Pages: 64-60(1989)
        
      2
      |
      7
      |
      1
      <HTML>
      <Meta-XML>
      <引用本文> <批量引用> 46196093 false
      发布时间:2023-12-18
    0