J9九游会AG

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  • 不锈钢精密铸造工艺及研究

    在不锈钢制品(pin)的(de)生(sheng)产中,有(you)些产品(pin)形(xing)状奇特(te),不能用(yong)弯管技术生(sheng)产。采用(yong)蜡模、砂模和液体材(cai)料充填成型工艺(yi),生(sheng)产出形(xing)状不规则(空心或(huo)实心)的(de)产品(pin)。

    2021-01-10 16333

  • 精密铸造硅溶胶型壳的制造工艺

    介(jie)绍了(le)以石蜡-硬脂酸低温结晶器(qi)、熔模铸(zhu)(zhu)造(zao)和(he)精密铸(zhu)(zhu)造(zao)硅溶(rong)(rong)胶(jiao)(jiao)为(wei)(wei)结壳剂制造(zao)铸(zhu)(zhu)件外壳的(de)工艺(yi)要求。本文主要研(yan)究了(le)熔融法、硅溶(rong)(rong)胶(jiao)(jiao)壳法和(he)焙烧(shao)法。五年来(lai)的(de)生产实践充分(fen)证明,精密铸(zhu)(zhu)造(zao)硅溶(rong)(rong)胶(jiao)(jiao)型壳制造(zao)技术(shu)成(cheng)熟,为(wei)(wei)生产合格的(de)型壳和(he)精密铸(zhu)(zhu)件提供了(le)技术(shu)保证。

    2021-01-10 16356

  • 精密锻造成形技术类型及应用

    精(jing)(jing)密(mi)锻(duan)(duan)(duan)造成(cheng)形(xing)(xing)(xing)技术,又(you)称为近形(xing)(xing)(xing)或(huo)近净(jing)成(cheng)形(xing)(xing)(xing)技术是指零件(jian)成(cheng)形(xing)(xing)(xing)后(hou),仅需要(yao)少(shao)量(liang)加工或(huo)不再(zai)加工,就可以用(yong)作机械构件(jian)的(de)成(cheng)形(xing)(xing)(xing)技术。在(zai)生(sheng)(sheng)产实践中,人们习(xi)惯将(jiang)精(jing)(jing)密(mi)锻(duan)(duan)(duan)造成(cheng)形(xing)(xing)(xing)技术分为:冷精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)、热(re)精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)、温(wen)(wen)精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)、复(fu)合(he)成(cheng)形(xing)(xing)(xing)、闭塞锻(duan)(duan)(duan)造、等温(wen)(wen)锻(duan)(duan)(duan)造、分流锻(duan)(duan)(duan)造等。   1、冷精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)  将(jiang)不加热(re)的(de)金属材料直接进行锻(duan)(duan)(duan)造,主(zhu)要(yao)包括(kuo)冷挤压和(he)冷镦(dun)挤。  冷精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)技术比(bi)较适(shi)合(he)多(duo)品(pin)种小批量(liang)生(sheng)(sheng)产,主(zhu)要(yao)用(yong)来制造汽(qi)车、摩托(tuo)车的(de)各种零部件(jian)以及一些齿(chi)形(xing)(xing)(xing)零件(jian)。  2、热(re)精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)  主(zhu)要(yao)是指在(zai)再(zai)结晶温(wen)(wen)度(du)之(zhi)上的(de)精(jing)(jing)密(mi)锻(duan)(duan)(duan)造成(cheng)形(xing)(xing)(xing)工艺。热(re)精(jing)(jing)锻(duan)(duan)(duan)成(cheng)形(xing)(xing)(xing)工艺大多(duo)

    2020-11-18 16280

  • 精密锻造技术的应用

    精(jing)密锻(duan)(duan)造成(cheng)(cheng)(cheng)(cheng)形(xing)(xing)技术即近(jin)净成(cheng)(cheng)(cheng)(cheng)形(xing)(xing)技术,是指零(ling)件(jian)成(cheng)(cheng)(cheng)(cheng)形(xing)(xing)后(hou),仅需要(yao)少量(liang)加(jia)工(gong)或不再加(jia)工(gong),就可以用作机械构件(jian)的(de)成(cheng)(cheng)(cheng)(cheng)形(xing)(xing)技术,即制造接(jie)近(jin)零(ling)件(jian)形(xing)(xing)状的(de)工(gong)件(jian)毛(mao)坯。         较传统成(cheng)(cheng)(cheng)(cheng)形(xing)(xing)技术减少了(le)后(hou)续的(de)切削量(liang),减少了(le)材(cai)料、能(neng)源消耗、加(jia)工(gong)工(gong)序,显著(zhu)提高生产(chan)效率和(he)产(chan)品(pin)质量(liang),降低生产(chan)成(cheng)(cheng)(cheng)(cheng)本,提高产(chan)品(pin)的(de)市(shi)场竞争能(neng)力。主要(yao)应用         1.生产(chan)精(jing)化毛(mao)坯,将(jiang)精(jing)密模(mo)锻(duan)(duan)件(jian)精(jing)加(jia)工(gong)得(de)到成(cheng)(cheng)(cheng)(cheng)品(pin)零(ling)件(jian)。      &n

    2020-11-18 16228

  • 精密铸造工艺流程图

    精(jing)密铸(zhu)造是(shi)铸(zhu)造方(fang)法(fa)之一。精(jing)密铸(zhu)造是(shi)一种特殊的(de)(de)(de)铸(zhu)造方(fang)法(fa)。它可以获得相对精(jing)确的(de)(de)(de)形状和较(jiao)高的(de)(de)(de)铸(zhu)造精(jing)度。常用的(de)(de)(de)方(fang)法(fa)是(shi):首先,根据(ju)产(chan)品(pin)要求(qiu)设计制造模具(残留量很小(xiao)或没(mei)有),用铸(zhu)造法(fa)铸(zhu)造蜡模,得到(dao)原始蜡模;在(zai)蜡模上重复(fu)涂砂工艺,将(jiang)外(wai)壳硬(ying)化干燥,然(ran)后将(jiang)里面(mian)的(de)(de)(de)蜡模融化,得到(dao)脱蜡的(de)(de)(de)空腔(qiang);对外(wai)壳进行烘(hong)烤(kao),以获得足够(gou)的(de)(de)(de)强度和透(tou)气性(xing);浇注所需(xu)的(de)(de)(de)金属材料;脱壳后除去砂子,获得高精(jing)度产(chan)品(pin)。根据(ju)产(chan)品(pin)要求(qiu)或热处理和冷加工。

    2020-11-11 17064

  • 精密重力铸造工业特点

    熔模铸造(zao)又称熔模铸造(zao),常用(yong)于精(jing)密重力铸造(zao)中:选用(yong)合适(shi)的(de)熔模材(cai)料(liao)(如石蜡)制(zhi)作熔模;在熔模上反复浸(jin)耐火(huo)涂(tu)料(liao)、撒耐火(huo)砂,使型(xing)(xing)(xing)(xing)壳硬(ying)化(hua)、干燥(zao)然后(hou)熔化(hua)内熔模,得到型(xing)(xing)(xing)(xing)腔;烘烤型(xing)(xing)(xing)(xing)壳,获(huo)(huo)得足(zu)(zu)够的(de)强度(du),烧(shao)掉剩(sheng)余的(de)熔模材(cai)料(liao);铸造(zao)需要(yao)将金属材(cai)料(liao)凝固冷却,脱壳后(hou)除(chu)砂,获(huo)(huo)得高(gao)(gao)精(jing)度(du)的(de)成品根(gen)据产品需要(yao)进(jin)行(xing)热处(chu)理、冷加工(gong)(gong)和表面处(chu)理例(li)如,砂型(xing)(xing)(xing)(xing)铸造(zao)、量产工(gong)(gong)厂应(ying)创造(zao)条件(jian),采用(yong)先进(jin)的(de)造(zao)型(xing)(xing)(xing)(xing)和制(zhi)芯(xin)(xin)方法老(lao)式(shi)摇瓶机或摇瓶成型(xing)(xing)(xing)(xing)机生(sheng)(sheng)产线(xian)(xian)不(bu)够高(gao)(gao),工(gong)(gong)人劳动强度(du)大(da),噪音大(da),不(bu)适(shi)应(ying)批量生(sheng)(sheng)产的(de)要(yao)求,应(ying)逐步进(jin)行(xing)改造(zao)小型(xing)(xing)(xing)(xing)铸件(jian)可采用(yong)卧式(shi)或立式(shi)无箱(xiang)高(gao)(gao)压造(zao)型(xing)(xing)(xing)(xing)机生(sheng)(sheng)产线(xian)(xian)实体(ti)造(zao)型(xing)(xing)(xing)(xing)生(sheng)(sheng)产效率(lv)高(gao)(gao),占(zhan)地面积(ji)小对(dui)于中型(xing)(xing)(xing)(xing)铸件(jian),可选用(yong)各种(zhong)带箱(xiang)体(ti)的(de)高(gao)(gao)压造(zao)型(xing)(xing)(xing)(xing)机生(sheng)(sheng)产线(xian)(xian)和空气冲击造(zao)型(xing)(xing)(xing)(xing)线(xian)(xian),以满(man)足(zu)(zu)快速、高(gao)(gao)精(jing)度(du)造(zao)型(xing)(xing)(xing)(xing)生(sheng)(sheng)产线(xian)(xian)的(de)要(yao)求制(zhi)芯(xin)(xin)方法可选择为:高(gao)(gao)效制(zhi)造(zao)冷芯(xin)(xin)盒、热芯(xin)(xin)盒、壳芯(xin)(xin)等芯(xin)(xin)法。

    2020-11-11 15302

  • 精密铸造的大体现状

    精密(mi)铸(zhu)(zhu)(zhu)造(zao)(zao)是(shi)精密(mi)铸(zhu)(zhu)(zhu)造(zao)(zao)技术的(de)总称。精密(mi)铸(zhu)(zhu)(zhu)造(zao)(zao)是(shi)通过(guo)精密(mi)铸(zhu)(zhu)(zhu)造(zao)(zao)方(fang)法获得的(de)一种金属成形对象,即将熔化的(de)液态金属通过(guo)浇注(zhu)、注(zhu)射、吸入(ru)(ru)或其它铸(zhu)(zhu)(zhu)造(zao)(zao)方(fang)法,经(jing)冷(leng)却(que)等注(zhu)入(ru)(ru)到预先准备好(hao)的(de)铸(zhu)(zhu)(zhu)造(zao)(zao)模具中,从而得到一定的(de)形状、尺寸和(he)性能。物体(ti)的(de)形态。

    2020-11-05 15324

  • 精密铸造四种制壳工艺的特点

    世(shi)界上精密铸件的通(tong)用生产工艺

    2020-11-05 15368