Kev sib raug zoo ntawm cov ntawv ci tooj liab lub zog tensile thiab elongation yog dab tsi?

Lub zog tensile thiab elongation ntawm cov khoomntawv ci tooj liabyog ob qho tseem ceeb ntawm cov khoom siv lub cev, 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 yog hais txog lub peev xwm ntawm cov ntawv ci tooj liab los tiv taus qhov tawg tensile nyob rau hauv qhov kev ua ntawm lub zog, feem ntau qhia hauv megapascals (MPa). Elongation yog hais txog lub peev xwm ntawm cov khoom siv los hloov pauv yas deformation thaum lub sijhawm ncab, qhia ua feem pua. Lub zog tensile thiab elongation ntawmntawv ci tooj liabraug cuam tshuam los ntawm qhov tuab thiab qhov loj ntawm cov noob tib lub sijhawm, thiab cov lus piav qhia ntawm qhov loj me no yuav tsum qhia txog qhov sib piv ntawm qhov tuab thiab qhov loj ntawm cov noob (T/D) uas tsis muaj qhov ntev ua qhov sib piv. Tus qauv sib txawv ntawm lub zog tensile sib txawv ntawm qhov sib piv ntawm qhov tuab thiab qhov loj ntawm cov noob sib txawv, thaum qhov ntev txo qis nrog qhov txo qis ntawm qhov tuab thaum qhov sib piv ntawm qhov tuab thiab qhov loj ntawm cov noob zoo ib yam.

Hauv kev siv tiag tiag, xws li kev tsim khoom siv hluav taws xob,cov laug cam luam tawm(PCBs), cov qauv tsim nyog rau lub zog tensile thiab elongation tuaj yeem ua kom cov khoom tsis yooj yim tawg lossis deformation thaum siv, yog li ua kom ntseeg tau tias qhov zoo thiab kev ntseeg siab ntawm cov khoom. Rau kev sim tensile ntawm cov ntawv ci tooj liab, muaj ntau yam qauv thiab cov txheej txheem los txiav txim siab cov khoom no, xws li IPC-TM-650 2.4.18.1A tus qauv, uas tau tsim tshwj xeeb rau cov ntawv ci tooj liab ntawm cov laug cam luam tawm thiab muab cov txheej txheem kuaj thiab cov ntsiab lus ntxaws.

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

Hauv kev xaus, lub zog tensile thiab elongation ntawm cov ntawv ci tooj liab yog cov cim tseem ceeb rau kev ntsuas nws cov khoom siv lub cev, thiab lawv txoj kev sib raug zoo thiab kev sim cov txheej txheem yog qhov tseem ceeb rau kev ua kom zoo thiab kev ua haujlwm ntawmntawv ci tooj liabcov ntaub ntawv.