粉末制(zhi)品(pin)的(de)(de)(de)成(cheng)(cheng)(cheng)形(xing)是將均勻的(de)(de)(de)混(hun)合物(wu)混(hun)合，放入壓(ya)模(mo)中施加重壓(ya)，制(zhi)成(cheng)(cheng)(cheng)具(ju)有一(yi)(yi)定形(xing)狀(zhuang)、尺寸、密度的(de)(de)(de)型(xing)坯的(de)(de)(de)過程。 成(cheng)(cheng)(cheng)型(xing)的(de)(de)(de)方法基本(ben)分(fen)為沖壓(ya)成(cheng)(cheng)(cheng)型(xing)和無沖壓(ya)成(cheng)(cheng)(cheng)型(xing)兩種(zhong)。 沖壓(ya)成(cheng)(cheng)(cheng)形(xing)中頻(pin)繁使(shi)用的(de)(de)(de)是模(mo)具(ju)成(cheng)(cheng)(cheng)形(xing)。 模(mo)壓(ya)成(cheng)(cheng)(cheng)形(xing)選用四梁四柱液壓(ya)機進行一(yi)(yi)次模(mo)壓(ya)成(cheng)(cheng)(cheng)形(xing)，這(zhe)樣壓(ya)制(zhi)的(de)(de)(de)產品(pin)作業效(xiao)率高，加工密度及精度成(cheng)(cheng)(cheng)品(pin)率高。        

那么，怎樣為全自動粉末制品液壓機挑(tiao)選適(shi)合的噸(dun)數(shu)呢？一般 采用(yong)200噸(dun)四(si)(si)(si)(si)(si)梁四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)、315噸(dun)四(si)(si)(si)(si)(si)梁四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)、500噸(dun)四(si)(si)(si)(si)(si)梁四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)、630噸(dun)四(si)(si)(si)(si)(si)梁四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)、800噸(dun)四(si)(si)(si)(si)(si)梁四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)等常見的粉(fen)末成(cheng)(cheng)(cheng)型四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)。所述四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)有全自(zi)(zi)(zi)動(dong)(dong)(dong)和(he)自(zi)(zi)(zi)動(dong)(dong)(dong)式方式。您能夠依據具(ju)體(ti)必須挑(tiao)選全自(zi)(zi)(zi)動(dong)(dong)(dong)給(gei)料設(she)備(bei)和(he)機(ji)(ji)(ji)械臂，完成(cheng)(cheng)(cheng)自(zi)(zi)(zi)動(dong)(dong)(dong)式實(shi)際操作(zuo)。粉(fen)末成(cheng)(cheng)(cheng)型四(si)(si)(si)(si)(si)柱液(ye)壓(ya)(ya)(ya)機(ji)(ji)(ji)適(shi)用(yong)塑(su)膠材料的抑制(zhi)(zhi)全過程(cheng)。如粉(fen)末產品成(cheng)(cheng)(cheng)形(xing)、塑(su)膠制(zhi)(zhi)品成(cheng)(cheng)(cheng)形(xing)、冷(熱)擠金屬材料成(cheng)(cheng)(cheng)形(xing)、板才拉申(shen)、橫著抑制(zhi)(zhi)、彎折抑制(zhi)(zhi)、旋轉校準等。 機(ji)(ji)(ji)器具(ju)有獨立的動(dong)(dong)(dong)力機(ji)(ji)(ji)構和(he)電氣系統，采用(yong)按鈕集中控制(zhi)(zhi)，可(ke)實(shi)現調整、手(shou)動(dong)(dong)(dong)及半自(zi)(zi)(zi)動(dong)(dong)(dong)三種工(gong)(gong)(gong)(gong)(gong)作(zuo)方式： 機(ji)(ji)(ji)器的工(gong)(gong)(gong)(gong)(gong)作(zuo)壓(ya)(ya)(ya)力、壓(ya)(ya)(ya)制(zhi)(zhi)速度，空載快下行和(he)減(jian)速的行和(he)范圍，均可(ke)根據工(gong)(gong)(gong)(gong)(gong)藝(yi)需要(yao)進行調整，并能完成(cheng)(cheng)(cheng)頂(ding)(ding)出工(gong)(gong)(gong)(gong)(gong)藝(yi)，不頂(ding)(ding)出工(gong)(gong)(gong)(gong)(gong)藝(yi)、拉伸工(gong)(gong)(gong)(gong)(gong)藝(yi)三種工(gong)(gong)(gong)(gong)(gong)藝(yi)方式，每(mei)種工(gong)(gong)(gong)(gong)(gong)藝(yi)又(you)為定壓(ya)(ya)(ya)，定程(cheng)兩種工(gong)(gong)(gong)(gong)(gong)藝(yi)動(dong)(dong)(dong)作(zuo)供選擇，定壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)型工(gong)(gong)(gong)(gong)(gong)藝(yi)在壓(ya)(ya)(ya)制(zhi)(zhi)后具(ju)有頂(ding)(ding)出延(yan)時(shi)及自(zi)(zi)(zi)動(dong)(dong)(dong)回(hui)程(cheng)。頂(ding)(ding)出缸還具(ju)有頂(ding)(ding)出、延(yan)時(shi)、自(zi)(zi)(zi)動(dong)(dong)(dong)退(tui)回(hui)。生產加工(gong)(gong)(gong)(gong)(gong)效率高(gao)。

粉未冶金廣泛(fan)運用(yong)(yong)于零件(jian)加工。雖然很(hen)多應(ying)(ying)用(yong)(yong)十分經濟實用(yong)(yong)，但它被普遍應(ying)(ying)用(yong)(yong)，并具備下(xia)列優勢:

1.一般來說，粉末冶金中非常少(shao)有生(sheng)產(chan)制造全過程。

2.選用粉末(mo)冶(ye)金生(sheng)產制造時，原(yuan)材料使用率達到(dao)95%之上。

3.粉(fen)末冶(ye)金的(de)可重復性非常好(hao)。因(yin)為粉(fen)末冶(ye)金傳動齒輪是用磨具抑(yi)制(zhi)而成(cheng)的(de)，因(yin)此在一切正(zheng)常應用標(biao)準下，一個(ge)磨具能(neng)夠抑(yi)制(zhi)數十萬(wan)到數十萬(wan)個(ge)金屬(shu)粉(fen)零件。

4.粉(fen)末冶金(jin)能夠集(ji)成化好(hao)多個一部分(fen)。

5.粉末(mo)冶(ye)金(jin)的原(yuan)材料相對(dui)密度(du)是可控性的。

6.在粉末冶金生產制造中，磨具工作中表層的表面粗糙度很好，便于于成形后從磨具中取下壓坯。