重力鑄造模具都是金屬制品，內部是中空的，倒入金屬材料液進行再冷成型，沙洲組的實體模型都像商品形狀，但鍛造模型的實體模型與商品形狀相反。這樣充電的金屬材料液進入冷林后，會產生類似鑄件的形狀，但金屬型鑄造也有很多種。重力鑄造機

重(zhong)力鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)模(mo)(mo)(mo)具(ju)是金(jin)(jin)(jin)屬(shu)(shu)材(cai)料(liao)液將模(mo)(mo)(mo)具(ju)引入地球重(zhong)力功效的加工(gong)工(gong)藝，也稱為(wei)鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)模(mo)(mo)(mo)具(ju)。理(li)論重(zhong)力鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)包括私募(mu)型鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)、金(jin)(jin)(jin)屬(shu)(shu)材(cai)料(liao)型鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)、熔模(mo)(mo)(mo)鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)、泥模(mo)(mo)(mo)鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)等。狹義的重(zhong)力鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)是指金(jin)(jin)(jin)屬(shu)(shu)材(cai)料(liao)型鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)。重(zhong)力鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)加工(gong)過(guo)程中不(bu)可缺少的一部分(fen)(fen)重(zhong)力鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)模(mo)(mo)(mo)具(ju)是比較(jiao)普遍的工(gong)業設備。鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)模(mo)(mo)(mo)具(ju)還(huan)可以分(fen)(fen)為(wei)鋁鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)、分(fen)(fen)段鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)、型沙(sha)鍛(duan)造(zao)(zao)(zao)(zao)、模(mo)(mo)(mo)具(ju)為(wei)金(jin)(jin)(jin)屬(shu)(shu)型鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)和模(mo)(mo)(mo)擬金(jin)(jin)(jin)屬(shu)(shu)型鑄(zhu)(zhu)(zhu)造(zao)(zao)(zao)(zao)。

在模(mo)(mo)(mo)具(ju)(ju)、工(gong)(gong)(gong)(gong)(gong)(gong)業生產(chan)中加(jia)入注射加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、注射成(cheng)型、擠(ji)(ji)壓(ya)(ya)(ya)(ya)(ya)、鋁壓(ya)(ya)(ya)(ya)(ya)鑄或鑄造(zao)(zao)成(cheng)型、冶煉廠(chang)、沖(chong)壓(ya)(ya)(ya)(ya)(ya)模(mo)(mo)(mo)具(ju)(ju)等，獲得所需商品(pin)的(de)(de)(de)各種(zhong)模(mo)(mo)(mo)板和(he)專(zhuan)用(yong)(yong)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)(ju)。在外(wai)力(li)下，將(jiang)毛坯(pi)(pi)制作成(cheng)具(ju)(ju)有一(yi)定(ding)(ding)形(xing)(xing)狀和(he)規(gui)格(ge)的(de)(de)(de)產(chan)品(pin)的(de)(de)(de)專(zhuan)用(yong)(yong)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)(ju)。通常用(yong)(yong)于冷(leng)沖(chong)壓(ya)(ya)(ya)(ya)(ya)、自由鍛(duan)造(zao)(zao)、冷(leng)擠(ji)(ji)壓(ya)(ya)(ya)(ya)(ya)、擠(ji)(ji)壓(ya)(ya)(ya)(ya)(ya)成(cheng)型、抑制粉末(mo)冶金制品(pin)、工(gong)(gong)(gong)(gong)(gong)(gong)作壓(ya)(ya)(ya)(ya)(ya)力(li)鍛(duan)造(zao)(zao)、橡膠(jiao)制品(pin)、硫化橡膠(jiao)、陶瓷等產(chan)品(pin)使(shi)用(yong)(yong)的(de)(de)(de)鑄造(zao)(zao)機或注射加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)成(cheng)型。模(mo)(mo)(mo)具(ju)(ju)有一(yi)定(ding)(ding)的(de)(de)(de)走廊(lang)或內(nei)(nei)壁(bi)形(xing)(xing)狀，使(shi)用(yong)(yong)帶刀片的(de)(de)(de)走廊(lang)形(xing)(xing)狀可以將(jiang)毛坯(pi)(pi)分(fen)(fen)離成(cheng)中心線形(xing)(xing)狀(冷(leng)沖(chong)壓(ya)(ya)(ya)(ya)(ya))。使(shi)用(yong)(yong)內(nei)(nei)壁(bi)形(xing)(xing)狀可以得到毛坯(pi)(pi)相對立體形(xing)(xing)狀。模(mo)(mo)(mo)具(ju)(ju)由模(mo)(mo)(mo)具(ju)(ju)和(he)前(qian)模(mo)(mo)(mo)具(ju)(ju)(包括模(mo)(mo)(mo)架和(he)型腔)兩(liang)部分(fen)(fen)組成(cheng)，可分(fen)(fen)為兩(liang)部分(fen)(fen)。分(fen)(fen)離時(shi)去除產(chan)品(pin)，關(guan)閉時(shi)將(jiang)毛坯(pi)(pi)引入模(mo)(mo)(mo)具(ju)(ju)模(mo)(mo)(mo)具(ju)(ju)成(cheng)型。模(mo)(mo)(mo)具(ju)(ju)是(shi)(shi)精細的(de)(de)(de)專(zhuan)用(yong)(yong)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)(ju)，形(xing)(xing)狀繁雜(za)，承受毛坯(pi)(pi)的(de)(de)(de)膨(peng)脹(zhang)力(li)，對結構(gou)的(de)(de)(de)抗(kang)壓(ya)(ya)(ya)(ya)(ya)強度、彎(wan)曲剛(gang)度、表(biao)面強度、粗糙(cao)度和(he)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度有很高的(de)(de)(de)規(gui)定(ding)(ding)。模(mo)(mo)(mo)具(ju)(ju)生產(chan)制造(zao)(zao)的(de)(de)(de)發展趨勢水平(ping)是(shi)(shi)機械設備制造(zao)(zao)水平(ping)的(de)(de)(de)核心標志(zhi)。