Technical Requirements for Friction Materials (1)
1. Tsim nyog thiab ruaj khov kev sib txhuam coefficient. Cov coefficient ntawm kev sib txhuam yog ib qho tseem ceeb tshaj plaws ntawm kev ua tau zoo rau kev ntsuam xyuas txhua yam ntawm cov khoom sib txhuam, thiab nws muaj feem xyuam rau kev ua haujlwm ntawm kev sib kis thiab kev sib tsoo ntawm cov phaj txhuam. Nws tsis yog qhov tas li, tab sis tus lej hloov pauv vim qhov cuam tshuam ntawm qhov kub thiab txias, siab, kev sib txhuam ceev lossis lub xeev nto thiab ib puag ncig nruab nrab. Qhov zoo tshaj plaws coefficient ntawm kev sib txhuam yuav tsum muaj qhov zoo tshaj plaws txias coefficient ntawm kev sib txhuam thiab qhov kub hnyiab uas tuaj yeem tswj tau. Vim lub tshav kub tsim los ntawm kev sib txhuam, kev ua haujlwm kub yog nce, uas ua rau muaj kev hloov pauv ntawm kev sib txhuam coefficient ntawm cov khoom sib txhuam.
Zoo abrasion tsis kam. Kev hnav tsis kam ntawm cov ntaub ntawv sib txhuam yog ib qho kev xav ntawm nws lub neej kev pab cuam, thiab nws kuj yog ib qho tseem ceeb ntawm kev lag luam thiab kev lag luam ntsuas los ntsuas qhov ua tau zoo ntawm cov khoom sib txhuam. Qhov zoo dua qhov hnav tsis kam, lub neej ua haujlwm ntev dua. Txawm li cas los xij, qhov hnav ntawm cov khoom sib txhuam thaum lub sij hawm ua hauj lwm yog feem ntau tshwm sim los ntawm lub shear quab yuam generated los ntawm kev sib txhuam nto. Kev khiav hauj lwm kub yog qhov tseem ceeb cuam tshuam rau qhov hnav. Thaum qhov kub thiab txias ntawm cov khoom mus txog qhov thermal decomposition kub ntau ntawm cov organic binders, organic binders xws li roj hmab thiab resin yuav decompose, carbonize thiab poob phaus. Raws li qhov kub thiab txias, qhov tshwm sim no hnyav zuj zus, qhov kev sib txuas ntawm cov nyhuv txo qis, thiab qhov hnav tau nce zuj zus, uas yog hu ua "thermal hnav".
