Cov lus tshaj lij rau kev lag luam roj hmab foob
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Hauv qab no yog cov lus piav qhia
Roj Hmab foob yog cov khoom sib khi uas siv los tiv thaiv cov kua, roj, plua plav thiab lwm yam tsis huv los ntawm kev xau lossis nkag los ntawm cov pob qij txha. Lawv feem ntau yog ua los ntawm cov khoom siv roj hmab, uas muaj qhov zoo elasticity thiab durability.
Lub luag haujlwm tseem ceeb ntawm cov khoom siv roj hmab yog tsim kom muaj kev sib khi los ua kom muaj kev sib khi ua haujlwm ntawm kev sib koom tes. Lawv tau siv dav hauv ntau yam kev lag luam thiab kev siv, suav nrog tsheb, aerospace, petrochemicals, tshuab thiab khoom siv, thiab lwm yam.
Lub gasket yog ib qho kev sib khi uas siv los sau qhov khoob ntawm cov pob qij txha kom tiv thaiv kom tsis txhob muaj dej los yog nkag mus rau cov kua, roj lossis hmoov av. Gaskets feem ntau yog ua los ntawm roj hmab, hlau, cellulose, yas los yog cov ntaub ntawv sib xyaw.
Lub luag haujlwm tseem ceeb ntawm lub gasket yog tsim kom muaj kev sib khi ntawm qhov chaw sib txuas kom ntseeg tau tias kev sib khi ua haujlwm. Lawv tau dav siv nyob rau hauv ntau yam kev lag luam thiab kev siv xws li cov kav dej, li qub, twj tso kua mis, cav, tshuab thiab khoom siv, thiab lwm yam.
Sealant yog cov khoom siv los sau qhov khoob lossis qhov tsis xws luag hauv cov pob qij txha kom ua tiav cov nyhuv sealing. Nws feem ntau tuaj nyob rau hauv cov kua los yog ib nrab ntawm cov khoom thiab muaj peev xwm muab sau thiab solidified thaum lub sij hawm txheej txheej los yog txhaj tshuaj.
Lub luag haujlwm tseem ceeb ntawm kev foob yog sau cov me me khoob hauv seem sib txuas thiab tiv thaiv kua qaub lossis plua plav lossis plua plav. Lawv tau siv dav hauv ntau yam kev lag luam thiab kev siv xws li kev tsim kho, tsheb, aerospace, khoom siv hluav taws xob, thiab lwm yam.
- Sherwood hardness: Qhov no yog qhov ntsuas ntawm hardness ntawm cov khoom thiab txiav txim siab los ntawm nias lub pob zeb diamond tshwj xeeb rau hauv cov khoom thiab ntsuas qhov tob ntawm qhov indentation.
- Lub zog tensile: Qhov no yog ib qho kev ntsuas ntawm qhov siab tshaj plaws tensile quab yuam cov khoom tuaj yeem tiv taus ua ntej tawg hauv qhov nro, feem ntau qhia hauv cov chav nyob ntawm Pascal (Pa) lossis Megapascal (MPa).
- Tear resistance: Qhov no yog lub peev xwm ntawm cov khoom siv los tiv thaiv tearing, feem ntau ntsuas los ntawm kev ntsuas tensile.
- Kev laus Resistance: Qhov no yog lub peev xwm ntawm cov khoom siv los tswj nws cov khoom qub thaum raug rau ib puag ncig (xws li UV rays, av noo) rau lub sijhawm ntev.
- Chemical resistance: Qhov no yog lub peev xwm ntawm cov khoom siv los tiv thaiv kev tawm tsam los ntawm cov tshuaj.
- Low Temperature Flexibility: Qhov no yog lub peev xwm ntawm cov khoom siv kom nyob twj ywm saj zawg zog thiab ductile ntawm qhov kub thiab txias.
- Vulcanization: Hauv kev lag luam roj hmab, vulcanization yog txheej txheem uas cov roj hmab molecules hnov mob nrog sulfur los hla kev txuas cov roj hmab molecules nrog ib leeg kom nws lub zog thiab kav ntev.
- Extrusion: Qhov no yog cov txheej txheem tsim khoom uas tau dhau los ntawm kev tuag ntawm cov duab tshwj xeeb nyob rau hauv lub siab ntawm extruder kom tau txais cov khoom ntawm ib qho tshwj xeeb.
- Txhaj Moulding: Qhov no yog txheej txheem tsim khoom uas thermoplastic yog txhaj rau hauv pwm thiab txias kom tau txais cov khoom ntawm cov duab tshwj xeeb.
- Rubber formula: Qhov no yog hais txog cov khoom siv raw thiab cov khoom siv hauv kev tsim cov khoom siv roj hmab.
- Roj Hmab Adhesion: Qhov no yog hais txog kev tsim kom muaj kev sib raug zoo ntawm cov roj hmab thiab lwm yam khoom, feem ntau yog los ntawm cov nplaum.
- Roj Hmab Expansion Joint: Qhov no yog ib hom tshwj xeeb ntawm kev sib koom ua ke feem ntau siv los nqus kev co thiab thermal expansion hauv cov kav dej.
- Roj Hmab rau Hlau Bonding: Qhov no yog hais txog cov txheej txheem ntawm kev sib txuas cov roj hmab thiab cov ntaub ntawv hlau ua ke, feem ntau los tsim cov ntaub ntawv sib xyaw lossis txhim kho lub cev ntawm ob qho tib si.
- Kev sim roj hmab: Qhov no suav nrog ntau yam kev sim, xws li kev sim hardness, tensile test, compression test, aging resistance test, thiab lwm yam, los ntsuas qhov kev ua tau zoo ntawm roj hmab.
Kev paub ntau ntxiv, koj tuaj yeem tiv tauj peb rau kev sib tham.