Tsis hais txog ntawm kev lag luam uas tsim thiab ua tiav cov khoom tiav, ces yuav muaj qee qhov kev tsim khoom thiab kev ua haujlwm ntawm cov khoom tsis raug, tab sis peb thiaj li yuav tsum tsis txhob muaj cov nqi nce ntxiv thiab txo cov nqi tsim khoom, muaj qee cov ntsiab lus tuaj yeem daws cov teeb meem no. Tom qab ntawd tus ntsia thawv residue, peb yuav ua li cas zam, cov hauv qab no peb yuav piav qhia cov ntsiab lus uas yuav tsum tau sau tseg.
Cov ntsia hlau yog crooked: yog tias qhov teeb meem no tshwm sim, ces tus ntsia thawv riam yog crooked li tawg, los yog pwm yog xoob. Thiab peb yuav daws li cas, thawj zaug yog xyuas seb tus ntsia thawv riam puas tawg los yog nkhaus qhov teeb meem tshwm sim, yog hais tias tus ntsia thawv riam crooked, nws yog ib qho tsim nyog yuav tau tsim cov ntsia hlau kuj yuav muaj crooked qhov teeb meem, yog li nyob rau hauv peb li niaj zaus tu, tu thiab kev siv cov txheej txheem, peb yuav tsum tsis tsuas yog them sai sai rau cov ntsia hlau riam thiab kev tiv thaiv, tab sis kuj yog los txhim kho peb cov tsim ntawm cov ntsia hlau tsim nyog tus nqi. Khaws lub tshuab kom huv si, ntsia thawv pwm yuav tsum tau ntxuav tsis tu ncua thiab tsis txhob siv cov khoom siv raw rau cov ntsia hlau. Qhov thib ob, yog tias muaj cov cim qhia ntawm xoob ntawm tus ntsia thawv pwm, cov rau tes yuav raug skewed mus rau qhov sib txawv, yog li peb tsis tuaj yeem tsis quav ntsej qhov skew ntawm tus ntsia thawv pwm ib yam.
Tus ntsia thawv tsis ncaj los yog khoov: yog tias qhov no tshwm sim, tus ntsia thawv tuag yog xoob lossis ntug ntawm txiab tsis ua raws li qhov yuav tsum tau ua, lossis lwm tus qauv ntawm txiab tsis hloov. Thawj peb yuav tsum xyuas seb lub taub hau trapezoidal ntsia hlau puas ua tau raws li peb cov kev xav tau compression ntsia thawv ua tshuab txiv ntoo xoob, zawm cov txiv ntoo; thib ob ntsia thawv ua tshuab cuab yeej hauv shear hardness ntawm cov khoom sib txawv, ntug sib txawv; nyob rau hauv kev tshuaj xyuas cov ntsia hlau ua tshuab shear qhov chaw, yog tias tsim nyog, peb tuaj yeem hloov qhov chaw los daws qhov teeb meem.
Post lub sij hawm: Jun-07-2023