Qib 12.9 ISO7379 allen taub hau xub pwg ntsia hlau

Siv tseem ceeb: Cov ntsia hlau ntsaws (ISO7379) kuj hu uaallen taub hau lub xub pwg ntsia hlauCov ntsia hlau ntsaws siv ua ke nrog cov ntsia hlau thiab cov pas nrig khi, thiab feem ntau yog siv ua cov khoom siv pwm rau kev tswj hwm qhov qhib pwm ntawm lub phaj zaum pwm, lub phaj thawb khiav thiab cov pwm qauv hauv peb lub phaj pwm. Vim tias nws tuaj yeem teeb tsa rau qhov chaw sib cais ntawm pwm, nws tuaj yeem ua rau cov qauv pwm me dua. Cov khoom no muaj qhov nyuaj siab, zoo toughness, hnav tsis kam thiab kub tsis kam, haum rau cov pwm precision, uas tuaj yeem txhim kho lawv lub neej kev pabcuam, tshwj xeeb tshaj yog qhov thermal deformation ntawm cov pwm precision tau raug tswj tau zoo, haum rau cov pwm hauv qhov chaw ua haujlwm kub siab.