txog yas khoom hardness

Lub zog feem ntau yog hais txog lub peev xwm ntawm cov khoom siv yas los tiv thaiv lub zog ntawm cov khoom siv tsis zoo, thiab nws tus nqi zauv yuav raug suav hais tias yog qhov kev xav ntawm qhov kev nplua thiab kev tawv ntawm cov yas. Txawm hais tias yas hardness tsis muaj kev sib txuas lus nrog lwm yam khoom siv dag zog zoo li cov hardness ntawm cov khoom hlau, hardness yog ib qho tseem ceeb ntawm cov khoom siv tswj thiab khoom tshuaj xyuas!

Xws li:

1. Elastomer yas raw khoom, lub hardness ntawm cov khoom ncaj qha cuam tshuam cov tes xav ntawm cov khoom tiav, cov nyhuv ntawm cov roj hmab txheej, thiab los ntawm qhov kev ua haujlwm yuav tsis ncaj nraim nkag siab txog lwm yam khoom siv cov khoom ntawm cov khoom, xws li kev tshem ntawm kev kawm, cov khoom, kev ruaj ntseg degree.

2. Lub zog ntawm cov khoom yas rau cov tsheb muaj cov kev cai sib thooj. Tib lub sijhawm, ntau qhov yuav tsum muab ntxiv nrog cov ntaub ntawv pab txhawb, uas yuav cuam tshuam lawv cov kev ua tau zoo. Yog li, kev ntsuam xyuas tawv yuav tsum tau ua.

Tom qab muab cov nqi ntawm cov khoom pov hwm los ntawm kev ntsuam xyuas, yuav ua li cas hloov qhov nyuaj ntawm qhov khoom kom zoo dua rau qhov khoom zoo?

1. Kev sib tov tuaj yeem ua rau kom muaj zog ntawm cov khoom hnyav

Ib txoj kev zoo dua qub kev sib tov yog siv los sib tov ua ib qho kev kub ntxhov nyob hauv kev sib zog ua kom tsis muaj zog kom ua rau tag nrho nws lub zog. Feem ntau yog siv mixed mixed yog: PS, PMMA, ABS thiab MF. Cov resins yuav tsum hloov kho yog mas PE, PA, PTFE thiab PP.

2. Cov ntaub ntawv sib txuam ua kom zoo dua qub

Ib txoj hauv kev ua kom muaj kev sib zog ntawm kev sib tov yog tsim kom muaj lub siab tawv tawv mus rau ntawm ib qho khoom tawv tshooj tshooj yas. Cov txheej txheem yog siv rau cov khoom siv extruded xws li daim ntawv, cov ntawv, cov yeeb yaj kiab thiab cov kav dej. Feem ntau siv cov kab sib txawv txaij yog PS, PMMA, ABS thiab MF.

3. Ua kom tawv nqaij nplaum

Qhov no tsuas yog ua rau kom qhov nyuaj ntawm qhov sab nrauv ntawm cov tshooj yas, thiab qhov nyuaj hauv qhov khoom yog tsis hloov. Qhov no yog qhov pheej yig tus nqi kho txoj hauv kev txhim kho. Cov kev hloov kho yog siv rau cov qhov dav hlau, cov ntaub ntawv zoo nkauj, cov ntaub ntawv kho qhov muag thiab txhua yam khoom txhua hnub. Cov kev hloov kho mas nws muaj peb txoj hau kev txheej, plating thiab kho cov av.

Kawm kom nkag siab txog cov ntsiab lus tseem ceeb uas muaj feem xyuam rau kev ua kom tawv nqaij ntawm cov khoom siv saum toj saud, tom qab ntawd yuav ua li cas yog qhov tawv nqaij?

Txoj kev los txiav txim nyuaj yog muab faib ua ntug dej thiab Rockwell hardness raws li tus qauv ntawm kev paub lub taub hau. Txij thaum kuaj dej yog qhov feem ntau siv rau hauv cov roj hmab thiab cov lag luam industries, hnub no peb tsom rau ntawm ntug dej.

Cov paib ntawm ntug dej yog ib txoj hauv kev qhia txog qhov nyuaj ntawm cov khoom, thawj zaug npaj los ntawm British Albert F. Shore. Cov qauv siv feem ntau yog Shaw A, C, thiab D. Lub hom phiaj ntawm txhua tus qauv yog raws li nram no:

Shaw Ib hom: tsim kom kuaj cov khoom nruab nrab thiab qis, tawv, txhua hom roj hmab, roj ntau, siv quav ciab thiab lwm yam.

Ntug C: Tsim nyog rau kev sim ua npuas dej, daim txhuam cev, cov ntaub ntawv microporous rau khau, thiab lwm yam.

Shore D: Qhov tsim nyog los soj ntsuam tawv roj hmab, tawv tawv, iav, thermoplastic, luam ntawv daim hlau, fibers, thiab lwm yam.

Thaum txiav txim siab txog cov dej khov, cov txheej txheem ISO, siv hom A thiab Hom D.

Hardness daim ntawv qhia

Nws tuaj yeem pom los ntawm Chore qhov sib npaug ntawm lub rooj sib hais tias qhov nyuaj ntawm cov khoom uas muaj ib qhov mob ntawm A 90 los sis tsawg dua yog ntsuas los ntawm qhov nyuaj A, thiab cov khoom ntawm cov khoom siab tshaj 90 A yog ntsuas los ntawm D ntsuas. Nyob rau theem ntawm qhov kev xeem tiag tiag, tus qauv tsim nyog yuav tsum tau xaiv raws li qhov nyuaj ntawm tus qauv.

zoo siab tos txais xaiv peb cov nqes tes ua qhov teeb meem:

https://www.chinatestequipments.com/tests-on-plastic-raw-materials/hardness-tester/digital-display-shore-hardness-tester.html