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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