Txhawm rau txhim kho qhov kev ua tau zoo ntawm cov pwm, ntau lub tuam txhab yuav ua lawv cov pwm kom zoo. Mould processing yog hais txog kev ua cov cuab yeej tsim thiab cov cuab yeej billet, thiab tseem suav nrog shearing tuag thiab tuag-txiav tuag. Nws tseem yuav muaj kev cuam tshuam txog kev ua haujlwm tsis zoo, ua rau muaj kev poob qis hauv pwm kev ua haujlwm, yog li yuav ua li cas los tsim pwm kev ua haujlwm tsis raug? Xya qhov ntsuas hauv qab no tuaj yeem daws qhov tsis xws ntawm kev ua pwm.
1. Tsim nyog xaiv thiab hnav khaub ncaws ntawm kev sib tsoo log
Kev sib tsoo lub log siv cov corundum dawb yog qhov zoo dua, nws qhov kev ua tau zoo yog qhov nyuaj thiab nkig, thiab nws yooj yim los tsim cov npoo tshiab, yog li lub zog txiav me me, qhov sib tsoo kub me me, thiab qhov nruab nrab particle loj yog siv rau hauv qhov loj me. , xws li {{0}} mesh zoo dua. Lub hardness ntawm kev sib tsoo log yog nruab nrab-mos thiab mos (ZR1, ZR2 thiab R1, R2), uas yog, coarse-grained, low-hardness sib tsoo lub log, uas muaj kev zoo siab rau tus kheej thiab tuaj yeem txo cov cua sov. Nws yog ib qho tseem ceeb heev uas yuav tau xaiv cov kev sib tsoo uas tsim nyog rau kev sib tsoo zoo. Rau siab vanadium thiab siab molybdenum tej yam kev mob ntawm cov pwm hlau, nws yog tsim nyog los xaiv GD ib leeg siv lead ua corundum sib tsoo log. Thaum ua cov cemented carbide thiab cov ntaub ntawv nrog siab quenching hardness, pob zeb diamond nrog organic binder yog nyiam. Sib tsoo log, organic binder sib tsoo log muaj qhov zoo ntawm tus kheej sib tsoo, thiab qhov roughness ntawm lub workpiece tuaj yeem ncav cuag Ra0.2μm. Nyob rau hauv xyoo tas los no, nrog rau kev siv cov ntaub ntawv tshiab, CBN (cubic boron nitride) kev sib tsoo log tau pom tias muaj kev ua haujlwm zoo heev. Ua tiav ntawm CNC txoj kev sib tsoo, sib koom tes sib tsoo, thiab CNC sab hauv thiab sab nraud cylindrical grinders, cov nyhuv zoo dua li lwm hom kev sib tsoo log. Thaum lub sij hawm sib tsoo, nws yog ib qho tsim nyog yuav tsum tau them sai sai rau kev hnav khaub ncaws sib tsoo lub sij hawm kom lub log sib tsoo ntse. Thaum lub log sib tsoo passivated, nws yuav swb thiab nyem rau ntawm qhov chaw ntawm lub workpiece, ua rau kub hnyiab ntawm qhov chaw ntawm lub workpiece thiab txo nws lub zog.
2. Kev siv lub tshuab ua kom txias txias
Ua si peb lub luag haujlwm tseem ceeb ntawm kev ua kom txias, ntxuav thiab lubrication, ua kom txias thiab lubrication kom huv si, thiaj li tswj tau cov cua sov sib tsoo hauv qhov kev tso cai, txhawm rau tiv thaiv thermal deformation ntawm workpiece. Txhim kho cov cua txias thaum lub sij hawm sib tsoo, xws li siv cov roj sib tsoo log los yog cov cua txias sib tsoo. Cov kua txiav yog nkag mus rau hauv nruab nrab ntawm lub log sib tsoo, thiab cov kua txiav tuaj yeem ncaj qha nkag mus rau hauv qhov sib tsoo kom ua kom cov cua txias zoo thiab tiv thaiv qhov chaw ntawm qhov chaw ua haujlwm los ntawm kev kub hnyiab.
3. Txo qhov kev ntxhov siab tom qab kev kho cua sov kom tsawg
Vim hais tias ntawm quenching kev nyuaj siab thiab lub network carbonized qauv nyob rau hauv qhov kev txiav txim ntawm kev sib tsoo quab yuam, theem transformation ntawm cov qauv yuav yooj yim ua rau tawg nyob rau hauv lub workpiece. Rau high-precision pwm, txhawm rau txhawm rau tshem tawm qhov seem ntawm kev sib tsoo, kev kho qhov kub thiab txias yuav tsum tau nqa tawm tom qab sib tsoo los txhim kho toughness.
4. Tshem tawm kev sib tsoo kev nyuaj siab
Nws kuj tseem tuaj yeem muab cov pwm tso rau hauv cov ntsev da dej ntawm 260-315 degree rau 1.5 feeb, thiab tom qab ntawd txias nws hauv cov roj ntawm 30 degree, kom lub hardness tuaj yeem txo los ntawm 1HRC, thiab qhov seem seem yuav txo tau. los ntawm 40 feem pua -65 feem pua .
5. Kev sib tsoo kub tsis tu ncua
Rau kev sib tsoo ntawm cov pwm precision nrog qhov ntev ntev nyob rau hauv 0.01 hli, yuav tsum tau them nyiaj rau qhov kub ntawm qhov kub thiab txias, thiab qhov kub thiab txias yuav tsum tau sib tsoo. Nws tuaj yeem pom los ntawm kev suav tias rau ib daim hlau nrog qhov ntev ntawm 300mm, thaum qhov kub thiab txias sib txawv yog 3 degree, cov khoom yuav hloov li ntawm 10.8μm, (10.8=1.2 × 3 × 3, qhov deformation ib 100mm yog 1.2μm / degree), thiab tag nrho cov txheej txheem tiav yuav tsum tau txiav txim siab tag nrho. kev cuam tshuam ntawm qhov xwm txheej no.
6. Siv electrolytic sib tsoo
Txhim kho pwm tsim raug thiab nto zoo. Thaum lub sij hawm electrolytic sib tsoo, lub sib tsoo log scrapes tawm ntawm oxide zaj duab xis es tsis txhob sib tsoo hlau, yog li lub sib tsoo quab yuam me me, lub sib tsoo kub kuj yog me me, thiab yuav tsis muaj kev sib tsoo burrs, tawg, kub hnyiab, thiab lwm yam. roughness yuav zoo dua Ra0 .16μm; Tsis tas li ntawd, qhov hnav ntawm lub log sib tsoo me me, xws li kev sib tsoo cemented carbide, qhov hnav ntawm silicon carbide sib tsoo log yog li 400 feem pua rau 600 feem pua ntawm qhov hnyav hauv av carbide. Tsuas yog 50 feem pua rau 100 feem pua ntawm kev tshem tawm cov cemented carbide.
7. Tsim nyog xaiv tus nqi sib tsoo
Kev sib tsoo zoo nrog me me radial pub lossis txawm tias zoo sib tsoo. Yog hais tias lub radial pub thiab qhov ceev ntawm lub sib tsoo log raug txo kom tsim nyog, thiab axial pub yog nce, qhov chaw sib cuag ntawm lub log sib tsoo thiab lub workpiece yuav raug txo, thiab cov cua kub dissipation tej yam kev mob yuav raug kho kom zoo, yog li ntawd zoo tswj qhov nce. hauv qhov kub thiab txias.
