Dab tsi yog qhov kev sib raug zoo ntawm cov ntawv ci tooj liab lub zog tensile thiab elongation?

Lub zog tensile thiab elongation ntawmtooj liab ntawv ciyog ob qho tseem ceeb ntawm lub cev ntsuas, thiab muaj qee qhov kev sib raug zoo ntawm lawv, uas cuam tshuam ncaj qha rau qhov zoo thiab kev ntseeg siab ntawm cov ntawv ci tooj liab.

Lub zog tensile hais txog lub peev xwm ntawm cov ntawv ci tooj liab los tiv thaiv tensile tawg nyob rau hauv qhov kev txiav txim ntawm quab yuam, feem ntau hais hauv megapascals (MPa). Elongation yog hais txog lub peev xwm ntawm cov khoom siv los ua cov yas deformation thaum lub sij hawm ncab, qhia raws li feem pua. Lub zog tensile thiab elongation ntawmtooj liab ntawv ciyog ib txhij muaj kev cuam tshuam los ntawm thickness thiab grain loj, thiab cov lus piav qhia ntawm qhov loj me me yuav tsum qhia qhov dimensionless thickness-grain loj piv (T / D) raws li kev sib piv parameter. Lub variation qauv ntawm tensile lub zog yog txawv nyob rau hauv txawv thickness-grain loj piv ranges, thaum lub elongation txo nrog txo thickness thaum lub thickness-grain loj piv yog tib yam.

Hauv kev siv tswv yim, xws li hauv kev tsim khoomluam tawm Circuit Boards(PCBs), cov qauv tsim nyog rau lub zog tensile thiab elongation tuaj yeem xyuas kom meej tias cov khoom tsis tuaj yeem tawg lossis deformation thaum siv, yog li ua kom cov khoom zoo thiab kev ntseeg siab ntawm cov khoom. Rau kev ntsuas tensile ntawm cov ntawv ci tooj liab, muaj ntau yam qauv thiab txoj hauv kev los txiav txim siab cov khoom no, xws li IPC-TM-650 2.4.18.1A tus qauv, uas yog tsim tshwj xeeb rau cov ntawv ci tooj liab ntawm cov ntawv luam tawm hauv Circuit Court boards thiab muab cov ncauj lus kom ntxaws txog cov txheej txheem. thiab cov ntsiab lus.

Thaum kuaj lub zog tensile thiab elongation ntawm cov ntawv ci tooj liab, qhov tseem ceeb uas yuav tsum tau xav txog suav nrog qhov loj ntawm cov qauv, kev ntsuas ceev, qhov kub thiab txias, thiab lwm yam. Piv txwv li, ASTM E345-16 tus qauv muab cov txheej txheem rau kev ntsuas tensile ntawm cov ntawv hlau, nrog rau cov ncauj lus kom ntxaws. xws li cov qauv loj, kev ntsuas ceev, thiab lwm yam GB / T 5230-1995 tus qauv, ntawm qhov tod tes, teev cov kev xeem rau electrolytic tooj liab ntawv ci, nrog rau cov qauv loj, ntsuas qhov ntev, qhov deb ntawm clamps, thiab ntsuas tshuab clamp ceev.

Hauv cov ntsiab lus, lub zog tensile thiab elongation ntawm cov ntawv ci tooj liab yog cov cim tseem ceeb rau kev ntsuas nws lub cev, thiab lawv txoj kev sib raug zoo thiab kev sim yog qhov tseem ceeb rau kev ua kom zoo thiab kev ua haujlwm ntawmtooj liab ntawv cicov ntaub ntawv.