1.What yog cov kev ua haujlwm tseem ceeb ua tau zoo?
Yield zog (σS)
Lus Txhais: Kev ntxhov siab tseem ceeb uas cov khoom siv hloov chaw ntawm Elastic Discormation (zoo dua tom qab tsis muaj zog) rau cov khoom siv yas tom qab kev tiv thaiv). Tsuas yog muab tso, nws lub zog xav tau rau cov khoom uas yuav pib khoov / ncab thiab tsis tuaj yeem ua rau rov qab.
Ntsuas hauv megapascals (MPA), nws yog ib qho ntawm cov khoom siv tseem ceeb ntawm Galvanized chev.
Daim ntawv thov tseem ceeb:
Rau cov qauv txheej txheem (xws li cov keyels tsev thiab thawv rau cov khoom siv hluav taws xob (piv txwv li cov khoom siv ntau dua li 350mpa, ua rau nws thauj khoom zoo li cas los yog sib npaug rau cov khoom siv thauj khoom).
Rau machined seem (xws li cov rooj rooj tshuab hluav taws xob (xws li lub tsev muag khoom siv) Siab heev lub zog zog tuaj yeem ua rau tawg thaum lub sij hawm stamping, thaum dhau lawm prop comce zog tau yooj yim coj mus rau thim rov qab deformation tom qab ua.
Tensile lub zog (ulb)
Kev txhais: Qhov kev ntxhov siab sib raug zoo rau qhov siab tshaj plaws tensile yuam cov khoom tuaj yeem tiv taus ua ntej tawg hauv nro. Nws yog qhov qhia tau qhov kawg ntawm cov khoom siv "fracture kuj."
Chav: MegapScals (MPA).
Daim Ntawv Thov:
Nws ncaj qha cuam tshuam cov ntaub ntawv "thauj khoom txwv" thiab yog tshwj xeeb tshaj yog rau cov ntawv siv yuav ua rau cov khoom siv tshwj xeeb lossis cov tsev nyob thiab cov teeb meem tsheb).
Thaum siv ua ke nrog cov txiaj ntsig zoo (xws li suav lub zog (xws li suav lub txiaj ntsig {}}} {}}}}}} muaj zog piv txwv kev nyab xeeb. Qhov siab dua lub tensile lub zog, tsawg kawg cov ntaub ntawv yuav tawg thaum siv sijhawm.
Elongation (Δ)
Kev txhais: qhov sib txawv ntawm qhov pib thiab zaum kawg tom qab cov khoom tawg nyob rau hauv qhov nro yog feem pua ntawm qhov ntev ntawm qhov ntev. Qhov no yog qhov taw qhia tseem ceeb ntawm cov khoom siv plasticity (ductility).
Chav:% (feem pua).
Daim Ntawv Thov:
Qhov siab dua elongation, qhov yooj yim dua nws yog txhawm rau ncab thiab khoov cov khoom uas tsis muaj kev tawg. Nws yog qhov taw qhia tseem ceeb rau cov kev ua (xws li kev sib sib zog nqus thiab dabtsi yog khoov).
2.Qhov dab tsi yog cov ntsuas tseem ceeb uas cuam tshuam rau cov txheej txheem moulding?
Yield relier
Kev txhais: Qhov sib piv ntawm lees lub zog los tensile lub zog. Nws yog tus tseem ceeb derivative qhia rau kev txiav txim siab cov khoom siv "software" (underless, zauv).
Daim ntawv thov tseem ceeb:
Qhov qis dua cov txiaj ntsig sib piv, tus dav cov khoom siv "Elastic Discormation ntau, thiab tsawg dua nws yog tawg lossis rov qab ua haujlwm.
Dabtsi yog khoov cov cuab yeej
Kev txhais: qhov muaj peev xwm ntawm cov khoom siv los tiv thaiv kev khoov rau ib lub kaum sab xis (piv txwv li, 90 degree) thiab ib qho kev sib tw tsis muaj qhov tawg lossis tev. Qhov no yog kev ntsuas ntawm cov khoom siv tsis kam mus rau qhov khoov tawg.
Kev sim cov qauv feem ntau yuav tsum muaj "khoov kaum sab xis ntawm 180 degree, ib qho kev hloov pauv r {} t los yog qhov tsis xws luag thaum khoov ntawm qhov deb.
Daim Ntawv Thov:
Qhov tseem ceeb rau cov ntawv thov uas yuav tsum tau khoov (piv txwv li, qhov rooj thiab qhov rai thav ntawv, cov ntawv kaw txee).
3.Qhov kom ntseeg tau tias qhov kev ua tau zoo ntawm lub galvangized txheej?
Zinc Txheej Adhesion
Kev Txhais Tes: Qhov nyiaj sib zog ntawm cov txheej galvanized thiab cov txheej txheem (txias {{rolled steel ntawv los yog flakes.
Txoj kev xeem:
Khoov xeem: khoov cov hnoos qeev 180℃thiab saib seb cov txheej zinc lossis peels.
Kev kuaj: Siv riam riam los ua tus ntoo khaub lig {{} Daim phiaj zoo nkauj duab (piv txwv li 1 hli x 1 hli) rau saum npoo. Thov cov kab xev nplaum, tom qab ntawd tshem tawm cov kab sib chaws thiab saib rau zinc txheej flakes.
Erichsen kuaj: punch saum npoo los tsim ib qho chaw tsa nto. Qhov kev ntsuas no cov nplaum ruaj ntseg ntawm zinc txheej ntawm zinc txheej thaum lub sijhawm muaj kev cuam tshuam yas deformation.
Daim Ntawv Thov:
Phom Zinc Txheej Admesion tuaj yeem ua rau zinc txheej ya ri thaum ua lossis siv, ua rau muaj kev tiv thaiv substrate thiab poob rau kev tiv thaiv corrosion.
4.Qhov dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv tshuab hauv cov xwm txheej sib txawv?
Qhov yooj yim stamping seem: tawm lub zog, elongation
Kev sib sib zog nqus chaw: paib lub zog sib piv, elongation, zinc txheej adhesion
Txheej txheem qhov chaw: paib lub zog, lub zog tensile
Bent qhov: Dab tsi yog khoov cov khoom, Zinc Txheej Adhesion
5.Txhua li cas xaiv raws li cov txheej txheem tshwj xeeb thiab kev siv tau siv?
Thaum txiav txim xaiv, nws yog ib qho tsim nyog los ua ntej cov ntsuas kev ua haujlwm thiab cov kev siv tsis tau zoo tshaj plaws "{{} round zoo tshaj plaws" kom tsis txhob muaj tus nqi pov tseg.