反擊式破碎機(jī)用錘頭的材料與熱處理工藝選擇.pdf

1、西南交通大學(xué)碩士學(xué)位論文反擊式破碎機(jī)用錘頭的材料與熱處理工藝選擇姓名：夏志興申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料工程指導(dǎo)教師：楊川20080101西南交通大學(xué)碩士研究生學(xué)位論文第Ⅱ頁(yè)AbstractImpactcrusherhammerisoneofthemainpartoftheimpactcrusherwhichiseasytobeWOl“nEveryyearweconsumeagreatdealofmc無(wú)almaterialCurrent

2、lyausteniteantifrictionsteelwasusedinagreatpartofthehammerdomestic，butbecauseitisdifficulttoformthevalidhardeninglayerwhenitworks，it’Swearresistantisnotgood，andtheservicelifeisveryshortThisisnotbenefitforthebrokenupproce

3、ssoftherocksandlowerproductionefficiencyMeanwhile，itincreasesthecostofproductiongreatlyInordertesolvethisengineeringproblem，thisarticlecarriesonthetestandtheexperimentofthehardnessandtheopticalmicrostructures，thetransmis

4、sionelectronmicroscope(TEM)andthescanningelectronmicroscope(SEM)，makesadetailanalysisofthemicrostructure，theperformanceandtheW@aI“modeandSOontotheusedausteniteantifiiOionsteelhammerandthenfindsoutthereasonwhythehanimerha

5、sapoorwearresistantandexpiredinearlydaysAndafterputtingforwardontheseconclusions，thearticleraisesseveralsuggestionstoimprovethistypehammer’SservicelifeIntheaboveonthebasisoftheresearchwork，thisarticlechooses42CrMo、60Si2M

6、nandCrl2MoVtobethematerialofthenowhammer，andestablishestheirheattreatmentwaysandmeasures，makesthesenewhammershavethegoodhardnessandtoughnessComparedwi也theausteniteantifiictionsteelh咖％theproductionexperimentshowsthattheWe

7、arresistanceofthenewhammerincreasesmorethantwotimesThroughthetestsandtheexperimentsofhardness，theopticalmicrostmcturesandthescanningelectronmicroscope(SEM)，Weanalyzethereasonthatthewearresistantincreasesfromthemicrostruc

8、ture，theperformanceandtheWearmodeandSOon，andcomparetheeconomicbeIlefitofthesehammers，thenprovideatheoreticalbasisthatwecallselectthematerialandtheheattreatmentwaysandmeasuresoftheimpactcrusherhammerunderthesimilarworking