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壓力機成型精鍛工藝技術及裝備的進展
來源:鄭州華隆tel_0371-60121717 | 發布日期:2018-06-29

  ⑴熱精鍛工藝的進展。

  近(jin)年來開發(fa)出熱(溫)精鍛工(gong)藝生產的汽車零件有中(zhong)(zhong)高(gao)壓管接頭、萬向節叉(cha)、十字軸、花鍵軸套(tao)(tao)、餅(bing)盤類齒輪坯、大模數大直徑(jing)直錐齒輪、倒檔(dang)齒輪、結合齒輪、等(deng)速萬向節鐘形(xing)套(tao)(tao)、三(san)銷滑套(tao)(tao)、極爪,電力金(jin)具中(zhong)(zhong)的單支耳、雙夾箍,轎車及(ji)軍工(gong)產品(pin)中(zhong)(zhong)的高(gao)強度鋁合金(jin)零件等(deng),品(pin)種和數量大幅增(zeng)加。

  ⑵壓力機成型精鍛裝備的進展。

  1)進(jin)口與國產大(da)中型模(mo)鍛(duan)(duan)壓(ya)力(li)(li)機品種和(he)數(shu)(shu)量快速增長,主要(yao)是(shi)數(shu)(shu)控電動螺旋壓(ya)力(li)(li)機、熱(re)模(mo)鍛(duan)(duan)壓(ya)力(li)(li)機、多(duo)(duo)工位(wei)溫鍛(duan)(duan)壓(ya)力(li)(li)機,精鍛(duan)(duan)液(ye)壓(ya)機等;2)建立(li)了(le)多(duo)(duo)條自動化熱(re)模(mo)鍛(duan)(duan)生(sheng)(sheng)產線(xian)(xian),如(ru)連(lian)桿(gan)、前軸、曲軸、轉(zhuan)向節等機器人操作的熱(re)模(mo)鍛(duan)(duan)自動化生(sheng)(sheng)產線(xian)(xian);齒輪、齒輪坯、連(lian)桿(gan)類(lei)鍛(duan)(duan)件步(bu)進(jin)梁操作的熱(re)精鍛(duan)(duan)自動化生(sheng)(sheng)產線(xian)(xian)。

  與國(guo)外先進(jin)水平(ping)的差距

  ⑴壓力機成型精鍛工藝。
1)我國(guo)(guo)(guo)(guo)模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)與鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)總(zong)產(chan)量(liang)(liang)的比(bi)(bi)例仍然較低(di)。日(ri)本(ben)、德國(guo)(guo)(guo)(guo)和美國(guo)(guo)(guo)(guo)等模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)占鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)總(zong)產(chan)量(liang)(liang)的80%以上,我國(guo)(guo)(guo)(guo)2010年,模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)與鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)總(zong)產(chan)量(liang)(liang)分別(bie)為690萬(wan)噸和1022.4萬(wan)噸,占比(bi)(bi)為67.49%;2011年,模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)與鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)總(zong)產(chan)量(liang)(liang)分別(bie)為669萬(wan)噸和1067萬(wan)噸,占比(bi)(bi)為62.70%。2)我國(guo)(guo)(guo)(guo)精(jing)密(mi)模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)與模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)之比(bi)(bi)更低(di),日(ri)本(ben)模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)年產(chan)量(liang)(liang)約(yue)250萬(wan)噸,而精(jing)密(mi)模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)的占比(bi)(bi)為36%;德國(guo)(guo)(guo)(guo)模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)年產(chan)量(liang)(liang)略低(di)于(yu)日(ri)本(ben)的產(chan)量(liang)(liang),而精(jing)密(mi)模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)的占比(bi)(bi)為37%;我國(guo)(guo)(guo)(guo)精(jing)密(mi)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)約(yue)占模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)的6%~8%。所(suo)以,我國(guo)(guo)(guo)(guo)雖然模(mo)(mo)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)產(chan)量(liang)(liang)遠高于(yu)日(ri)本(ben)和德國(guo)(guo)(guo)(guo),但其效益卻低(di)于(yu)日(ri)本(ben)和德國(guo)(guo)(guo)(guo)。

  ⑵壓力機(ji)成(cheng)(cheng)型精(jing)(jing)鍛(duan)(duan)模具(ju)。模具(ju)壽命低,壓力機(ji)成(cheng)(cheng)型熱鍛(duan)(duan)模具(ju)壽命平(ping)均(jun)約為(wei)6000件,鍛(duan)(duan)模費用平(ping)均(jun)占(zhan)鍛(duan)(duan)件成(cheng)(cheng)本的(de)6%,為(wei)國外(wai)的(de)2倍;大型復雜精(jing)(jing)密(mi)鍛(duan)(duan)模具(ju)尚依賴進口。

  ⑶壓(ya)力機成型(xing)精鍛(duan)設(she)備。通用設(she)備多,大型(xing)、高(gao)精、高(gao)效精鍛(duan)設(she)備依賴進(jin)口。

 

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