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沖頭又叫沖針、頂針,是模具配件的一種,經常用于在五金沖壓模具以及塑膠模具中,沖(chong)(chong)頭(tou)在工作的(de)過(guo)程中,既要(yao)(yao)有(you)(you)硬(ying)度(du)(du)(du),又必須要(yao)(yao)有(you)(you)韌性(xing)。影響沖(chong)(chong)針使(shi)用次數的(de)因素有(you)(you)很多(duo),那么什么材質的(de)沖(chong)(chong)頭(tou)不(bu)(bu)容易(yi)斷(duan)呢?這也(ye)是做精(jing)密(mi)模(mo)具配件(jian)的(de)企業一(yi)(yi)直(zhi)要(yao)(yao)致(zhi)力(li)解決(jue)的(de)問(wen)題(ti)。盡(jin)管材質是其中比較重要(yao)(yao)的(de)一(yi)(yi)種,也(ye)并非決(jue)定性(xing)因素,沖(chong)(chong)針不(bu)(bu)容易(yi)斷(duan)在材質方面主(zhu)要(yao)(yao)看材質的(de)韌性(xing)和硬(ying)度(du)(du)(du),以硬(ying)度(du)(du)(du)來說,硬(ying)度(du)(du)(du)高,沖(chong)(chong)針會比較耐(nai)磨,但過(guo)高的(de)硬(ying)度(du)(du)(du)會使(shi)得沖(chong)(chong)頭(tou)變脆,有(you)(you)易(yi)硬(ying)碰硬(ying)而(er)崩掉的(de)可能(neng)性(xing),因此在加(jia)工生產(chan)沖(chong)(chong)頭(tou)過(guo)程中,我們會先(xian)對(dui)(dui)材料進行熱(re)處理(li),熱(re)處理(li)可以讓材質達到(dao)相對(dui)(dui)合(he)理(li)的(de)硬(ying)度(du)(du)(du)范圍內,從而(er)保證沖(chong)(chong)針的(de)正常使(shi)用。
沖頭(tou)(tou)在五金沖(chong)(chong)壓模(mo)(mo)(mo)具當中也叫、上模(mo)(mo)(mo)、陽(yang)模(mo)(mo)(mo)、等(deng)(deng)(deng),而沖(chong)(chong)頭(tou)(tou)又分為A型(xing)沖(chong)(chong)頭(tou)(tou)、T型(xing)沖(chong)(chong)頭(tou)(tou)、異型(xing)沖(chong)(chong)頭(tou)(tou)。沖(chong)(chong)頭(tou)(tou)是(shi)安(an)裝在上的(de)金屬零件,應用(yong)于(yu)與材(cai)料的(de)直接接觸,使材(cai)料發生形變、裁切材(cai)料。模(mo)(mo)(mo)具沖(chong)(chong)頭(tou)(tou)一般采用(yong)高(gao)速鋼和等(deng)(deng)(deng)作為材(cai)質(zhi),有高(gao)速鋼沖(chong)(chong)頭(tou)(tou)和鎢鋼沖(chong)(chong)頭(tou)(tou)等(deng)(deng)(deng),而高(gao)速鋼是(shi)最常用(yong)的(de)材(cai)質(zhi),常用(yong)的(de)有、、asp23、skd11、skd51、等(deng)(deng)(deng)等(deng)(deng)(deng),鎢鋼材(cai)質(zhi)一般用(yong)在要求(qiu)較高(gao)的(de)沖(chong)(chong)剪模(mo)(mo)(mo)具上。
沖頭一般是用于塑膠模具中。它又可以叫做頂針推桿、鑲(xiang)針(zhen)(zhen)(zhen)、中針(zhen)(zhen)(zhen),托針(zhen)(zhen)(zhen)等(deng)(deng)(deng),有時候車床(chuang)用(yong)(yong)的(de)(de)(de)頂(ding)(ding)(ding)(ding)尖也(ye)(ye)被叫做(zuo)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)。頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)在(zai)精(jing)密模(mo)(mo)(mo)(mo)具(ju)(ju)配件加(jia)工(gong)(gong)的(de)(de)(de)應用(yong)(yong)有:在(zai)塑(su)膠(jiao)模(mo)(mo)(mo)(mo)具(ju)(ju)中,將(jiang)產品從模(mo)(mo)(mo)(mo)具(ju)(ju)上分(fen)(fen)離下來,也(ye)(ye)是最常用(yong)(yong)的(de)(de)(de);硬質合金(jin)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)如鎢鋼(gang)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)等(deng)(deng)(deng),則可(ke)以用(yong)(yong)來通較(jiao)長較(jiao)細的(de)(de)(de)孔;裝配在(zai)車床(chuang)或者磨床(chuang)上的(de)(de)(de)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)也(ye)(ye)叫頂(ding)(ding)(ding)(ding)尖,是來支(zhi)持工(gong)(gong)件并(bing)使工(gong)(gong)件圍繞它(ta)轉動的(de)(de)(de)頭部圓錐形金(jin)屬棒,與模(mo)(mo)(mo)(mo)具(ju)(ju)配件加(jia)工(gong)(gong)中的(de)(de)(de)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)是兩(liang)種(zhong)截然不同的(de)(de)(de)物件。塑(su)膠(jiao)模(mo)(mo)(mo)(mo)具(ju)(ju)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)也(ye)(ye)可(ke)以用(yong)(yong)于(yu)模(mo)(mo)(mo)(mo)具(ju)(ju)里面(mian),它(ta)可(ke)以起到穩(wen)固作用(yong)(yong),也(ye)(ye)被叫做(zuo)鑲(xiang)針(zhen)(zhen)(zhen)。塑(su)膠(jiao)模(mo)(mo)(mo)(mo)具(ju)(ju)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)的(de)(de)(de)種(zhong)類有:扁頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)、圓頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)、托針(zhen)(zhen)(zhen)、標準(zhun)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen),非(fei)標準(zhun)頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)等(deng)(deng)(deng)。扁頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)也(ye)(ye)叫扁銷,主要用(yong)(yong)于(yu)塑(su)料產品筋(jin)條部分(fen)(fen)的(de)(de)(de)頂(ding)(ding)(ding)(ding)出,還有就是長條形的(de)(de)(de)膠(jiao)位,與圓頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)無法擺下的(de)(de)(de)時候,我們選(xuan)擇用(yong)(yong)扁頂(ding)(ding)(ding)(ding)針(zhen)(zhen)(zhen)。在(zai)精(jing)密模(mo)(mo)(mo)(mo)具(ju)(ju)配件加(jia)工(gong)(gong)中應用(yong)(yong)的(de)(de)(de)材(cai)料有SKH51 SKD61 SKD11 等(deng)(deng)(deng)。
東莞市高準精密機(ji)械制(zhi)造有限公司
聯系電話:13827243769(微信同號)
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