Shrinkage (tseem hu ua cov kab nrib pleb lossis fissures) yog ib qho teeb meem tshwm sim thiab cuam tshuam hauv cov txheej txheem forging. Shrinkage tsis tsuas yog txo lub zog thiab durability ntawm forged Cheebtsam tab sis kuj nce nqi ntau lawm. Txhawm rau kom ntseeg tau tias qhov zoo ntawm forged qhov chaw, nws yog ib qho tseem ceeb kom nkag siab txog qhov ua rau shrinkage, kev tiv thaiv kev tiv thaiv, thiab cov txheej txheem tswj kom zoo.
Ua rau Shrinkage
Shrinkage tsim feem ntau yog txuam nrog cov hauv qab no:
- Material Inhomogeneity: Inhomogeneous chemical muaj pes tsawg leeg lossis cov khoom tsis zoo hauv cov khoom siv raw tuaj yeem ua rau shrinkage thaum lub sij hawm forging.
- Kev tswj qhov kub tsis zoo: Kev tswj qhov kub tsis txaus thaum lub sij hawm forging, tshwj xeeb tshaj yog cua sov thiab cua txias tsis sib xws, tuaj yeem ua rau muaj kev ntxhov siab nyob rau hauv cov khoom, ua rau shrinkage.
- Cov Txheej Txheem Txheej Txheem: Kev teeb tsa tsis raug ntawm kev ua haujlwm tsis raug (xws li deformation ceev thiab siab) thaum lub sij hawm forging tuaj yeem ua rau shrinkage.
- Cov Teeb Meem thiab Tuag: Cov cuab yeej tsim tsis zoo lossis cov cuab yeej hnav hnyav thiab tuag tuaj yeem ua rau muaj kev ntxhov siab tsis sib xws ntawm qhov forged, ua rau shrinkage.
Txoj kev los tiv thaiv Shrinkage
Txawm hais tias shrinkage tsis tuaj yeem zam tag nrho hauv cov txheej txheem forging, cov hauv qab no tuaj yeem txo qhov tshwm sim:
Kev xaiv cov khoom siv thiab kev kho mob: Xaiv cov khoom zoo, homogeneously tsim cov ntaub ntawv thiab ua cov pretreatments tsim nyog (xws li annealing thiab homogenization) ua ntej forging tuaj yeem txo qhov tsis xws luag.
Optimizing Temperature Control: nruj me ntsis tswj cov cua sov thiab cua txias thaum lub sij hawm forging kom ntseeg tau tias txawm kub tis thiab txo qhov tsim ntawm sab hauv kev ntxhov siab. Cov txheej txheem xws li theem cua sov thiab txias txias tuaj yeem txo qhov kub thiab txias.
Txhim kho cov txheej txheem ua haujlwm: Tsim nyog tsim cov txheej txheem ua tiav, xws li deformation ceev thiab siab, kom tsis txhob deformation ntau dhau thiab kev ntxhov siab. Cov lej simulation thiab kev tshawb nrhiav kev sim tuaj yeem pab txhim kho cov kev ntsuas no.
Rational Tool thiab Die Design: Tsim cov cuab yeej thiab tuag kom ntseeg tau tias muaj kev ntxhov siab thaum lub sij hawm forging. Kev tshuaj xyuas tsis tu ncua thiab hloov cov tuag hnyav hnyav tuaj yeem tswj xyuas qhov ua tau zoo.
Txoj kev los tswj Shrinkage
Thaum shrinkage twb tshwm sim, raws sij hawm thiab zoo txoj kev tswj yuav txo tau nws cov kev cuam tshuam rau forged ib feem zoo:
Kev kho cua sov: Siv cov txheej txheem kho cua sov zoo li annealing thiab normalizing kom tshem tawm cov kev ntxhov siab sab hauv los ntawm shrinkage thiab txhim kho lub toughness thiab lub zog ntawm forged ib feem.
Kev Kho Cov Txheej Txheem: Rau qhov chaw me me ntawm qhov shrinkage, kho cov txheej txheem xws li vuam thiab cov khoom siv ntxiv tuaj yeem siv tau. Txawm li cas los xij, txoj kev no yuav tsum muaj kev txawj ua haujlwm siab thiab tuaj yeem cuam tshuam rau kev ua haujlwm tag nrho ntawm qhov forged.
Kev soj ntsuam zoo thiab kev tshuaj ntsuam xyuas: Siv cov kev sim uas tsis muaj kev puas tsuaj xws li kev kuaj ultrasonic thiab X-ray tshuaj xyuas kom paub thiab tshem tawm cov forged qhov chaw nrog cov shrinkage loj, kom ntseeg tau qhov zoo ntawm cov khoom kawg.
IV. Xaus
Shrinkage nyob rau hauv cov txheej txheem forging tsis tuaj yeem zam tag nrho, tab sis los ntawm kev xaiv cov khoom tsim nyog, kev tswj qhov kub thiab txias, txhim kho cov txheej txheem, thiab cov cuab yeej tsim tau zoo thiab tuag, nws qhov tshwm sim tuaj yeem txo qis. Tsis tas li ntawd, kev kho cua sov, kev kho cov txheej txheem, thiab kev soj ntsuam zoo tuaj yeem tswj xyuas qhov shrinkage uas twb muaj lawm, kom ntseeg tau tias qhov zoo thiab ua haujlwm ntawm forged qhov chaw. Hais txog thiab tswj cov teeb meem shrinkage hauv cov txheej txheem forging yog qhov tseem ceeb rau kev ua kom cov khoom zoo, txhim kho kev tsim khoom, thiab txo cov nqi.Shrinkage (tseem hu ua cov kab nrib pleb lossis fissures) yog ib qho teeb meem tshwm sim hauv cov txheej txheem forging. Shrinkage tsis tsuas yog txo lub zog thiab durability ntawm forged Cheebtsam tab sis kuj nce nqi ntau lawm. Txhawm rau kom ntseeg tau tias qhov zoo ntawm forged qhov chaw, nws yog ib qho tseem ceeb kom nkag siab txog qhov ua rau shrinkage, kev tiv thaiv kev tiv thaiv, thiab cov txheej txheem tswj kom zoo.
Ua rau Shrinkage
Shrinkage tsim feem ntau yog txuam nrog cov hauv qab no:
- Material Inhomogeneity: Inhomogeneous chemical muaj pes tsawg leeg lossis cov khoom tsis zoo hauv cov khoom siv raw tuaj yeem ua rau shrinkage thaum lub sij hawm forging.
- Kev tswj qhov kub tsis zoo: Kev tswj qhov kub tsis txaus thaum lub sij hawm forging, tshwj xeeb tshaj yog cua sov thiab cua txias tsis sib xws, tuaj yeem ua rau muaj kev ntxhov siab nyob rau hauv cov khoom, ua rau shrinkage.
- Cov Txheej Txheem Txheej Txheem: Kev teeb tsa tsis raug ntawm kev ua haujlwm tsis raug (xws li deformation ceev thiab siab) thaum lub sij hawm forging tuaj yeem ua rau shrinkage.
- Cov Teeb Meem thiab Tuag: Cov cuab yeej tsim tsis zoo lossis cov cuab yeej hnav hnyav thiab tuag tuaj yeem ua rau muaj kev ntxhov siab tsis sib xws ntawm qhov forged, ua rau shrinkage.
Txoj kev los tiv thaiv Shrinkage
Txawm hais tias shrinkage tsis tuaj yeem zam tag nrho hauv cov txheej txheem forging, cov hauv qab no tuaj yeem txo qhov tshwm sim:
Kev xaiv cov khoom siv thiab kev kho mob: Xaiv cov khoom zoo, homogeneously tsim cov ntaub ntawv thiab ua cov pretreatments tsim nyog (xws li annealing thiab homogenization) ua ntej forging tuaj yeem txo qhov tsis xws luag.
Optimizing Temperature Control: nruj me ntsis tswj cov cua sov thiab cua txias thaum lub sij hawm forging kom ntseeg tau tias txawm kub tis thiab txo qhov tsim ntawm sab hauv kev ntxhov siab. Cov txheej txheem xws li theem cua sov thiab txias txias tuaj yeem txo qhov kub thiab txias.
Txhim kho cov txheej txheem ua haujlwm: Tsim nyog tsim cov txheej txheem ua tiav, xws li deformation ceev thiab siab, kom tsis txhob deformation ntau dhau thiab kev ntxhov siab. Cov lej simulation thiab kev tshawb nrhiav kev sim tuaj yeem pab txhim kho cov kev ntsuas no.
Rational Tool thiab Die Design: Tsim cov cuab yeej thiab tuag kom ntseeg tau tias muaj kev ntxhov siab thaum lub sij hawm forging. Kev tshuaj xyuas tsis tu ncua thiab hloov cov tuag hnyav hnyav tuaj yeem tswj xyuas qhov ua tau zoo.
Txoj kev los tswj Shrinkage
Thaum shrinkage twb tshwm sim, raws sij hawm thiab zoo txoj kev tswj yuav txo tau nws cov kev cuam tshuam rau forged ib feem zoo:
Kev kho cua sov: Siv cov txheej txheem kho cua sov zoo li annealing thiab normalizing kom tshem tawm cov kev ntxhov siab sab hauv los ntawm shrinkage thiab txhim kho lub toughness thiab lub zog ntawm forged ib feem.
Kev Kho Cov Txheej Txheem: Rau qhov chaw me me ntawm qhov shrinkage, kho cov txheej txheem xws li vuam thiab cov khoom siv ntxiv tuaj yeem siv tau. Txawm li cas los xij, txoj kev no yuav tsum muaj kev txawj ua haujlwm siab thiab tuaj yeem cuam tshuam rau kev ua haujlwm tag nrho ntawm qhov forged.
Kev soj ntsuam zoo thiab kev tshuaj ntsuam xyuas: Siv cov kev sim uas tsis muaj kev puas tsuaj xws li kev kuaj ultrasonic thiab X-ray tshuaj xyuas kom paub thiab tshem tawm cov forged qhov chaw nrog cov shrinkage loj, kom ntseeg tau qhov zoo ntawm cov khoom kawg.
IV. Xaus
Shrinkage nyob rau hauv cov txheej txheem forging tsis tuaj yeem zam tag nrho, tab sis los ntawm kev xaiv cov khoom tsim nyog, kev tswj qhov kub thiab txias, txhim kho cov txheej txheem, thiab cov cuab yeej tsim tau zoo thiab tuag, nws qhov tshwm sim tuaj yeem txo qis. Tsis tas li ntawd, kev kho cua sov, kev kho cov txheej txheem, thiab kev soj ntsuam zoo tuaj yeem tswj xyuas qhov shrinkage uas twb muaj lawm, kom ntseeg tau tias qhov zoo thiab ua haujlwm ntawm forged qhov chaw. Hais txog thiab tswj cov teeb meem shrinkage nyob rau hauv cov txheej txheem forging yog ib qho tseem ceeb rau kev ua kom cov khoom zoo, txhim kho kev tsim khoom, thiab txo cov nqi.
Post lub sij hawm: Lub Xya hli ntuj-24-2024
