隨sui著zhe時shi代dai進jin步bu，一yi些xie機ji械xie設she備bei在zai我wo們men的de生sheng活huo中zhong會hui經jing常chang出chu現xian，比bi如ru挖wa掘jue機ji，就jiu是shi其qi中zhong最zui為wei常chang見jian的de設she備bei，人ren們men看kan到dao挖wa掘jue機ji，他ta的de造zao型xing最zui為wei突tu出chu的de就jiu是shi他ta的de鬥dou齒chi了le。想xiang一yi個ge大da象xiang的de鼻bi子zi，而er實shi際ji上shang他ta的de作zuo用yong也ye就jiu像xiang大da象xiang的de鼻bi子zi一yi樣yang。因yin此ci他ta的de損sun耗hao也ye是shi更geng大da的de。那na麼me我wo們men應ying該gai如ru何he減jian少shao寧ning波bo鬥dou齒chi的de損sun耗hao呢ne？
鬥(dou)齒(chi)的(de)用(yong)途(tu)相(xiang)當(dang)的(de)廣(guang)泛(fan)，不(bu)過(guo)用(yong)於(yu)挖(wa)掘(jue)機(ji)等(deng)機(ji)器(qi)上(shang)比(bi)較(jiao)多(duo)，鬥(dou)齒(chi)的(de)鑄(zhu)造(zao)方(fang)法(fa)也(ye)不(bu)是(shi)很(hen)多(duo)，有(you)兩(liang)種(zhong)分(fen)沙(sha)鑄(zhu)和(he)精(jing)密(mi)鑄(zhu)造(zao)。鍛(duan)造(zao)鬥(dou)齒(chi)成(cheng)本(ben)高(gao)，產(chan)量(liang)很(hen)小(xiao)。
鬥dou齒chi有you時shi候hou在zai工gong作zuo時shi會hui受shou到dao不bu同tong程cheng度du的de損sun傷shang，導dao致zhi鬥dou齒chi失shi效xiao，受shou力li分fen析xi一yi般ban鬥dou齒chi工gong作zuo麵mian與yu被bei挖wa掘jue物wu相xiang接jie觸chu，在zai一yi個ge完wan整zheng的de挖wa掘jue過guo程cheng中zhong不bu同tong的de工gong作zuo階jie段duan其qi受shou力li情qing況kuang不bu同tong。齒chi尖jian部bu位wei首shou先xian接jie觸chu物wu料liao表biao麵mian時shi，由you於yu速su度du較jiao快kuai，鬥dou齒chi尖jian部bu分fen受shou到dao較jiao強qiang烈lie的de衝chong擊ji。若ruo鬥dou齒chi的de屈qu服fu強qiang度du低di，將jiang會hui在zai尖jian部bu產chan生sheng塑su性xing變bian形xing。隨sui著zhe挖wa掘jue深shen度du的de加jia大da，鬥dou齒chi受shou力li情qing況kuang會hui有you所suo改gai變bian。當dang鬥dou齒chi切qie割ge物wu料liao時shi，鬥dou齒chi與yu物wu料liao發fa生sheng相xiang對dui運yun動dong，在zai表biao麵mian產chan生sheng很hen大da的de正zheng擠ji壓ya力li，從cong而er在zai鬥dou齒chi工gong作zuo麵mian和he物wu料liao之zhi間jian產chan生sheng較jiao大da的de摩mo擦ca力li。
所suo以yi建jian議yi鑄zhu造zao成cheng型xing後hou，對dui寧ning波bo鬥dou齒chi鑄zhu件jian進jin行xing適shi當dang的de正zheng火huo，以yi改gai善shan組zu織zhi和he性xing能neng，提ti高gao使shi用yong壽shou命ming。對dui鑄zhu件jian進jin行xing合he理li的de熱re處chu理li後hou，在zai相xiang同tong的de工gong況kuang條tiao件jian下xia，寧ning波bo鬥dou齒chi的de使shi用yong壽shou命ming提ti高gao了le近jin2倍。
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