1.Yuav ua li cas kuv tuaj yeem tshawb xyuas yog tias cov qauv sab hauv yog "uniform"?
Lub microstructure ntawm cov khoom muaj feem cuam tshuam rau nws cov khoom khoov. Yog hais tias cov nplej loj hauv cov matrix tsis sib xws (nrog cov nplej loj loj), lossis yog tias muaj ntau cov carbide nag lossis daus ntawm cov ciam teb, cov khoom siv plasticity yuav raug txo kom tsawg, ua rau tawg raws li cov qoob loo ciam teb thaum khoov. Qhov xwm txheej no feem ntau yuav tsum tau daws los ntawm kev ua kom zoo ntawm steel zeb txoj kev kho cua sov (xws li annealing kub thiab sijhawm).
2.Kuv tuaj yeem txheeb xyuas tau li cas seb cov khoom muaj pes tsawg leeg ua tau raws li cov qauv?
Yog tias cov khoom siv zog siab dhau lawm, nws cov plasticity yuav tsis zoo. Rau qee qhov tshwj xeeb daim ntawv thov, xws li nyuaj- dov coils uas yuav tsum tau 90℃txoj cai- lub kaum sab xis dabtsi yog khoov, steel mills yuav siv tsawg-carbon thiab qis-manganese muaj pes tsawg leeg los xyuas kom meej tias cov khoom muaj softness thiab ductility txaus kom tau raws li qhov yuav tsum tau ntawm direct dabtsi yog khoov.
3.Yuav kuaj xyuas "kev puas tsuaj nyuaj" ntawm qhov chaw?
Qhov chaw tsis zoo hauv cov ntaub ntawv yog qhov pib ntawm kev ntxhov siab thaum lub sij hawm khoov, yooj yim ua rau tawg. Kev tshuaj xyuas kom zoo yog qhov tseem ceeb:
Kos thiab abrasions: Txhua qhov khawb ntawm qhov chaw tuaj yeem dhau los ua qhov chaw tawg thaum khoov.
Ntug kab nrib pleb: me me kab nrib pleb ntawm cov npoo ntawm cov kab nrib pleb tuaj yeem nthuav tawm sai sai hauv kev khoov nruj.
Npuas thiab folds: Cov kev cuam tshuam sab hauv lossis saum npoo tuaj yeem ua rau tawg hauv kev ntxhov siab.
4.Yuav ua li cas los txhim kho txoj kev khoov?
Kho lub vojvoog khoov: Qhov no yog ib qho tseem ceeb tshaj plaws. Yog hais tias lub vojvoog dabtsi yog khoov me me dhau, qhov tensile kev nyuaj siab ntawm sab nrauv ntawm cov khoom yuav nce sharply, yooj yim ua rau tawg. Lub hauv paus ntsiab lus dav dav yog tias sab hauv lub vojvoog dabtsi yog khoov yuav tsum muaj tsawg kawg yog sib npaug lossis siab dua cov khoom tuab. Rau cov ntaub ntawv uas muaj zog dua (xws li stainless hlau), nws raug nquahu kom siv 1.5 npaug ntawm cov phaj tuab lossis ntau dua.
Kev tswj kev nrawm nrawm: Kev nrawm nrawm yuav tiv thaiv cov khoom los ntawm deforming tusyees, ua rau muaj kev ntxhov siab ntau dhau. Siv qis- nrawm, du dabtsi yog khoov tso cai rau kev ntxhov siab sab hauv ntawm cov khoom kom tso tawm tag nrho, txo qhov kev pheej hmoo ntawm kev tawg.
Xav txog cov kauj ruam-los ntawm- kauj ruam ua: Rau cov khoom ua haujlwm nrog cov duab nyuaj lossis cov kaum sab xis loj, tsis txhob sim ua kom tiav qhov khoov hauv ib kauj ruam. Siv cov kauj ruam-los ntawm- kauj ruam dabtsi yog khoov lossis ntxiv cov txheej txheem ua ntej- dabtsi yog khoov kom cov khoom maj mam ua kom zoo, tsis txhob deformation ntau dhau ib zaug.
5.Yuav tshuaj xyuas thiab lubricate lub pwm li cas?
Txhim kho pwm tsim: Xyuas seb cov pwm npoo yog ntse lossis muaj burrs. Tsim cov npoo ntawm cov punch thiab tuag nrog cov fab sib npaug tuaj yeem faib cov kev ntxhov siab thiab tiv thaiv khawb lossis txiav cov khoom nto thaum khoov.
Xyuas kom lub lubrication txaus: Thaum lub sij hawm khoov, cov khoom thiab pwm muaj kev sib txhuam hnyav. Siv cov roj nplua nyeem tsim nyog tsis yog tsuas yog txo cov kev sib txhuam tab sis kuj tseem pab kom cov cua sov, tiv thaiv micro- tawg los ntawm kev sib sau ntawm cov khoom nto vim overheating.