Cov chaw tsim khoom lag luam paub tias tom qab quenching, cov teeb meem zoo sib xws yog quenching mos me ntsis. Vim li cas cov menyuam bearing quenching soft dots? Dab tsi yog quenching soft spots?
Dab tsi yog quenching soft spots?
Tom qab quenching mos dots, qhov tshwm sim ntawm tsawg hardness tom qab quenching. Vim tsis tshua muaj hardness, softness yuav ncaj qha cuam tshuam qhov zoo ntawm kev sib tsoo ua. Thaum siv, qaug zog puas yuav tshwm sim. Tsis txhob tshwm sim ntawm cov ntsiab lus muag muag hauv kev tsim khoom.
Muaj ob yam tseem ceeb ntawm quenching cov ntsiab lus muag, ib qho yog decarburized: yog tias cov cua hauv lub cub tawg tsis zoo thaum cua sov los yog cua sov hauv lub cub tawg, nws yooj yim los ua decarbon; Tsis txaus, kom lub substrate tsis txaus macro-ainerized. Tom qab quenching, nws tsis tuaj yeem hloov mus rau hauv cov ntaub so ntswg. Qhov loj methanol yog ncaj qha dripped rau ntawm qhov chaw ntawm lub workpiece, los yog qhov chaw uas lub workpiece thiab workpiece nyob ze ze tuaj yeem ua rau qhov kub ceev ceev, thiab tsis tuaj yeem hloov mus rau hauv cov ntaub so ntswg martarinosteen.
Dab tsi yog vim li cas vim li cas cov menyuam bearing quenching qhov muag muag?
1. Kev soj ntsuam ntawm macro -appearance soj ntsuam thiab mos dot piv
Tom qab cov menyuam ib txwm quenching los ntawm cov kua qaub txias, qhov saum npoo ntawm cov menyuam yuav tsum ua tib yam li lub teeb grey; thiab cov menyuam uas yog quenching lub mos dot yog ntxuav los ntawm cov kua qaub txias, thiab qhov chaw ntawm cov menyuam nto yog ib feem nyob rau ntawm qhov chaw dov.
2. Yog vim li cas rau qhov muag taw tes ntawm cov kabmob cov menyuam quenching
Los ntawm kev soj ntsuam macro tsos, tshuaj lom neeg muaj pes tsawg leeg, kev kuaj hardness thiab kub theem kev soj ntsuam ntawm ib txwm cov menyuam thiab cov dot dot rollers, peb tuaj yeem pom tias qhov chaw mos dot roller cov kub theem cov ntaub so ntswg hauv vitro, kuj tseem muaj koob-puab thiab me me. daim, thiab lub hardness yog ho qis dua li ib txwm cov menyuam, thiab cov hardness tis yog uneven. Lub ntsiab yog vim li cas rau cov ntaub so ntswg thiab hardness ntawm cov menyuam dov nto tej zaum yuav hais tias qhov txias ceev ntawm dov nto thaum lub sij hawm quenching txheej txheem yuav qeeb dua. Lub over-cold Octoba ntawm dov nto thaum lub sij hawm quenching txheej txheem tsis tau hloov tag nrho cov koob-shaped los yog thaiv-shaped flexion ntaub so ntswg, yog li nws tsim cov nqaij mos tom qab quenching.
Los ntawm kev ua kom sov sov, ua kom lub sij hawm txuag hluav taws xob, thiab kho qhov tsis zoo uas cuam tshuam rau qhov txias txias, ua kom cov cua sov thiab qhov ceev ntawm kev txav mus los, qhov muag muag ntawm cov menyuam Qu lub cev tseem yuav tshwm sim. Nco tseg. Raws li kev txheeb xyuas, qhov dov nto ntawm cov kabmob cov menyuam tau txias thaum lub sijhawm quenching. Qhov laj thawj qeeb qeeb tuaj yeem yog qhov dov saum npoo ntawm ob lub chais thaum cov menyuam quenchs sib cuag, yog li cov kua dej ntawm cov ntsev ntawm cov dov nto yog qhov tsis zoo. Lub tshav kub tsim thaum lub sij hawm quenching txheej txheem yog sai sai tshem tawm, uas ua rau lub txias ceev ntawm lub dov nto mus rau lub cheeb tsam kom qeeb thiab cov mos mos ntawm quenching.
Yog vim li cas rau qhov chaw mos ntawm cov menyuam quenching Qu lub cev yog tias thaum lub sij hawm quenching txheej txheem, vim muaj kev sib cuag ntawm lub dov nto ntawm cov menyuam, nqaij nyuj yog tsim. Hauv cov txheej txheem kev kho cua sov tiag tiag, txhawm rau kom tsis txhob muaj qhov muag muag ntawm cov menyuam, cov menyuam yuav tsum tau muab tso rau hauv qhov sib npaug, thiab nws yog nruj me ntsis txwv tsis pub sib cuag ntawm qhov chaw dov.