新型無(wú)機(jī)淬火介質(zhì)G35物理化學(xué)性質(zhì)及適應(yīng)性研究.pdf

1、蘭州理工大學(xué)碩士學(xué)位論文新型無(wú)機(jī)淬火介質(zhì)G35物理化學(xué)性質(zhì)及適應(yīng)性研究姓名：李曉宇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：馬勤20100410新掣無(wú)機(jī)淬火介質(zhì)G35物理化學(xué)一阽能及適應(yīng)性研究曼曼曼曼曼蔓曼曼!曼曼曼!曼!曼曼!曼曼曼曼!曼曼曼曼詈I一一III—III—I曼曼寰曼蔓曼毫蔓曼曼!!曼!!!曼苧曼曼曼曼曼曼曼曼曼!皇曼窒曼!笪蔓皇!!曼曼!曼曼曼曼AbstractAimingatresearchandproductionofa

2、companyzhengzhouG35typeofthequenchantstestofphysicalandchemicalproperties，F(xiàn)orG35watersolublequenchingprocessperformanceofmediawerestudiedrespectivelyindifferentsamples：steelquenchingtemperaturecondition，quenchingmediumfo

3、rwater，oil，G35typeinorganicwatersolublequenchingagent(differentmediumtemperature)，afterquenchingmappedthehardeninglayerdistributioncurve，compareindifferentmediumsamplesofhardeninglayerdepth，afteranalyzingallkindsofcircum

4、stancesquenchingcrackingdeformationofthesampleAndtheywerecarriedoutonmechanicalpropertiestest(impacttoughness)Withelectronicmicroscope，semofdifferentheattreatmentofsteelfracturemorphologymicrostructureG35usedforsamplemat

5、erialgainexcellentquenchingquenchingprocessGetthefollowingconclusions：(1)G35typewaterquenchingmediumwithmediumtemperaturefrom30℃to60“Cincreasing，thelargestcoolingspeedfrom1627。C／sto1074。C／sdecreasedgradually(2)Accordingt

6、otoxicitytest，afterquenchingthesampledonotproduceharmfulgases(3)Throughtheanalysisofitsquench—hardeningabilitytest，G35typeindifferentmediumwaterquenchingtemperaturequenching(from820。Cto860。C)，mediumtemperaturerespectivel

7、yfor25℃、40。C、550CHardnessdistributionHRCdoesnotexistplungedforthequenchingtemperature840C，thetemperatureofthemediumfor40。Cand’hardnessto5965HRC；otherprocessingconditionsofhardeninglayerdepth(4)Throughthetendencyofdeforma

8、tionandcrackingexperiments，sampleswereheatedfrom820。Cto8600Cafterheatingpreservation30min，respectivelytowater，32#oilandtheG35typewaterquenching，mediumtemperaturefor25℃，quenchingtemperaturefor840degrees，mediumtemperaturef

9、or25℃，usingG35medium，guaranteesthequenchinghardnessHRCisbest(60—65)andnocracks，deformationisthesmallestonlyO01mm(5)BasedonGCrl5specimens，G35steelusequenchingmediumquenchingprocessinquenchingtemperaturefor840degrees30minu