1.Dab tsi yog vim li cas muaj feem xyuam rau cov khoom nws tus kheej?
Plasticity tsis txaus (tsawg elongation): Qhov no yog qhov ua rau ntau tshaj. Yog tias cov khoom siv elongation (A80) tsawg dhau, nws txhais tau hais tias nws tsis muaj "ductility" txaus kom haum rau qhov tob ntawm qhov tuag, thiab quab yuam stretching yuav ua rau tawg.
High yield zog piv: Cov yield zog piv yog qhov piv ntawm yield zog rau tensile zog. Yog tias qhov piv txwv no siab dhau (piv txwv li, ntau dua 0.8), nws txhais tau hais tias lub zog ntawm cov khoom pib deform yog ze rau lub zog uas nws thiaj li tawg. Qhov no ua rau cov khoom nyias nyias thaum ncab, tsis hloov kev ntxhov siab rau thaj tsam ib puag ncig hauv lub sijhawm, ua rau muaj kev ntxhov siab hauv cheeb tsam sai thiab tawg.
High hardness (tsis txaus annealing): Yog tias koj sab laj txog qib hardness ua ntej, ua tib zoo mloog. Yog tias cov khoom siv qib yog 1/8 nyuaj (qib 8) los yog nyuaj, thiab koj tab tom ua cov khoom uas yuav tsum tau kos duab sib sib zog nqus (feem ntau yog qib A lossis annealed), tawg yuav luag tsis muaj. Cov khoom siv yog tawv dhau lawm thiab tsis muaj peev xwm txaus cov yas ntws.
Qhov tseem ceeb anisotropy: Txias- dov coils qee zaum pom cov khoom sib txawv hauv qhov kev taw qhia dov (ntev) thiab txoj kab nruab nrab (transverse). Yog tias anisotropy ntawm cov khoom loj dhau lawm, kev tawg yuav tshwm sim nyob rau hauv cov kev taw qhia ntawm lub zog tsis muaj zog thaum stretching ncig los yog complex - zoo li qhov chaw.
2.Dab tsi yog qhov ua rau muaj teeb meem sab hauv / deg?
Kev suav nrog: Tsis yog -hlau suav nrog hauv cov hlau nplaum tuaj yeem cuam tshuam qhov txuas ntxiv ntawm matrix, tsim cov ntsiab lus kev ntxhov siab uas ua rau "lub sijhawm foob pob," ua rau tawg.
Scratches: Yog hais tias lub leveled nto muaj qhov sib sib zog nqus khawb (txawm los ntawm dov los yog leveling thiab conveying), cov khawb lawv tus kheej ua cov ntsiab lus ntawm kev ntxhov siab, ua rau tearing raws khawb thaum ncab.
3.Dab tsi yog vim li cas rau pwm thiab txheej txheem tsis?
Tsis txaus lossis hnav lub kaum sab xis ntawm lub kaum sab xis (R-angle): Lub vojvoog me me dhau ntawm cov xuas nrig lossis tuag yuav ua rau muaj kev tiv thaiv ntau ntxiv thaum cov khoom ntws, uas ua rau quab yuam thinning thiab tawg ntawm khoov. Hnav thiab roughening ntawm kaum lub vojvoog tseem yuav khawb cov khoom nto thiab ua rau muaj zog.
Ntau dhau qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Yog tias qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Cov khoom nyob rau hauv nruab nrab yuav raug quab yuam stretched thiab thinned kom txog thaum tawg.
Kev tshem tawm tsis txaus: Yog tias qhov kev tshem tawm ntawm cov punch thiab tuag tsawg dua li daim ntawv tuab, nws yuav ua rau "sib tsoo" thiab nyias cov khoom, ua rau nws tawg.
Kev kos ntau dhau: Thaum tsim cov khoom, yog tias qhov sib sib zog nqus sib sib zog nqus ntawm ib feem ntawm txoj kab uas hla (piv txwv li, kos coefficient tsawg dhau), dhau ntawm cov khoom siv qhov sib piv ntawm qhov kev txwv, kev tawg yuav tsis muaj kev zam.
4.Dab tsi yog vim li cas rau lubrication thiab kev ua haujlwm?
Lub lubrication tsis zoo: Cov txheej txheem ncab yuav tsum tau lubricating roj los tsim cov roj zaj duab xis kom txo kev sib txhuam. Yog tias muaj roj tsis txaus, siv cov roj tsis zoo, lossis cov roj lubricating tsis tuaj yeem tsim cov roj zoo, cov coefficient ntawm kev sib txhuam nce, ua rau cov khoom ntws nyuaj thiab ua rau tawg.
Cov ntawv tsis raug tso cai: Yog tias qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Sab nrog cov khoom tsawg yuav nyias thiab tawg vim overstretching.
Sheet hlau ntug mob: Yog hais tias muaj burrs ntawm qhov blanking los yog shearing npoo, cov burrs tuaj yeem dhau los ua qhov pib rau micro- tawg nyob rau hauv cov theem thaum ntxov ntawm ncab, uas tuaj yeem nthuav mus rau hauv kua muag.
5.Yuav daws teeb meem thiab daws qhov teeb meem no li cas?
Tshawb xyuas qhov tawg ntawm qhov chaw:
Yog hais tias cov pob txha tawg yog grey thiab fibrous nrog pom tseeb thinning ntawm cov npoo (caj dab), nws feem ntau qhia tias cov khoom siv tsis txaus lossis kev ncab ntau dhau.
Yog hais tias lub pob txha tawg yog tiaj tus thiab ci, los yog muaj ib tug herringbone qauv, thiab tsis pom tseeb thinning, nws feem ntau qhia tau hais tias sab hauv, micro- tawg, los yog sab nraud puas tsuaj rau cov khoom.
Test hardness/material: Paub meej tias cov khoom qib thiab qib hardness phim cov kev xav tau ntawm qhov ncab.
Kos lub lubrication: Xyuas seb cov roj zaj duab xis ntawm qhov saum npoo yog sib xws thiab yog tias muaj kev ntxhib los mos ntawm qhov tuag.
Kho qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob.