Roj hmab sealing strips, raws li kev soj ntsuam cov khoom lag luam hauv kev lag luam niaj hnub thiab kev tsim kho, qhov rooj thiab lub qhov rais, thiab cov khoom siv txhua yam. Lawv lub luag haujlwm tseem ceeb yog los tiv thaiv cov kua qaub, thaiv cov plua plav thiab suab nrov, thiab muab cov hnoos qeev thiab poob siab. Cov kev ua tau zoo ntawm cov roj hmab ntsaws ncaj qha cuam tshuam ncaj qha cuam tshuam cov khoom lag luam kev ua haujlwm zoo thiab kev xaiv ntawm lawv cov txheej txheem npaj thiab cov txheej txheem tseem ceeb. Kab lus no yuav tham txog cov kev npaj tseem ceeb, cov txheej txheem tseem ceeb, thiab cov ntawv thov tseem ceeb rau cov roj hmab sealing strips.
I. Cov ntaub ntawv xaiv rau cov roj hmab sealing strips
Kev npaj ntawm cov roj hmab sealing strips feem ntau yog nyob ntawm kev xaiv ntawm cov khoom siv ntawm cov khoom siv. Cov roj hmab feem ntau suav nrog roj hmab tej khoom siv roj hmab (NR), antrile roj hmab (epdm), roj hmab roj hmab silicoprene (CR). Cov ntaub ntawv sib txawv muaj cov khoom sib txawv thiab tsim nyog rau ib puag ncig ib puag ncig:
1.6: Nrog huab cua zoo heev, thiab cov cua tsis kam, nws yog qhov tsim hluav taws xob hauv lub sijhawm ntev, nws yog qhov chaw sib khi ua tsev thiab lub qhov rai thiab tsheb tshav ntuj.
2.Nws cov roj hmab butadiene roj hmab (nbr): Muaj cov roj tsis tshua muaj nyob hauv cov ntawv thov kev sib tw ua haujlwm, xws li cov cuab yeej siv tshuab hluav taws xob thiab cov cuab yeej siv khoom lag luam.
3.Silicone Roj Hmab (silicone): Muaj cov kub siab heev ({degree), ua nws haum rau siab- qhov chaw uas xav tau cov ntaub ntawv khaws cia.
4.Chloroprene Roj Hmab (CR): Muaj kev kub siab heev thiab cov nplaim hluavtaws rov qab, ua kom haum rau cov kev siv hluav taws xob tiv thaiv.
Ib qho ntxiv, txhawm rau txhim kho qhov kev ua tau zoo tag nrho ntawm cov kab txaij, cov tshuaj tiv thaiv kab mob, cov tshuaj tiv thaiv kab mob, elasticity, hnav tsis kam, thiab kev laus tsis kam.
Ii. Roj Hmab Sealing Sawb Npaj Cov Txheej Txheem
Kev npaj ntawm cov roj hmab sealing strips feem ntau muaj cov kauj ruam tseem ceeb: kev sib xyaw, extrusion molding, vulcanization, thiab post {{0} {0} {{{kev ua.
1. Cov txheej txheem sib xyaw
Kev sib xyaw yog cov kauj ruam tseem ceeb hauv kev npaj roj hmab sealing strips. Nws lub hom phiaj yog txhawm rau sib xyaw cov khoom siv roj hmab raw nrog ntau yam ntxiv los ua cov roj hmab ntxiv nrog cov khoom tshwj xeeb. Kev sib xyaw yog feem ntau ua hauv kev sib xyaw sab hauv lossis qhib cov khoom siv qhib. Cov txheej txheem tsis xws li qhov kub thiab txias, lub sijhawm, thiab nrawm yuav tsum tau nruj me ntsis kom muaj kev sib cais thiab tsis txhob ua rau cov roj hmab degradation.
2. Extrusion
Tom qab txias thiab tso cai rau cov roj hmab sib xyaw kom so, nws nkag mus rau theem extrusion. Cov txheej txheem Extrusion siv cov roj hmab extruder mus nias cov kev sib xyaw los ntawm kev tuag rau hauv cov duab uas xav tau (xws li puag ncig, lossis d- zoo li lub ntsej muag). Kev tswj qhov kub thiab txias yog qhov tseem ceeb thaum lub sijhawm ua haujlwm. Kev kub dhau heev tuaj yeem ua rau muaj cov roj hmab ua ntej ntawm cov roj hmab, thaum ntau dhau tsawg dua tsawg zaus tuaj yeem cuam tshuam rau cov neeg tsis zoo.
3. Vulcanization
Vulcanization yog cov kauj ruam tseem ceeb hauv kev ua tiav cov duab ntawm cov roj hmab sealing strips. Cua sov hla cov roj hmab molecular chains, imparting zoo elasticity thiab kev kho tshuab zog. Volcanization txoj kev muaj xws li huab cua kub yaj, chav vulcanization, thiab microwave vulcanization, nyob ntawm cov khoom hom thiab cov khoom lag luam. Piv txwv li, Epdm Sealing ib daim hlab feem ntau yog vulcanized siv siab siv siab {3} roj hmab rhawv hlua cia siv cov huab cua kub lossis huab cua kub.
4. Post -} ua
Tom qab vulcanization, cov hlua khi khi yuav xav tau trimming, txiav, kev kho mob, lossis kev kho mob saum npoo (xws li txau lossis kev ua kom raws li kev sib dhos lossis kev ua kom zoo nkauj. Piv txwv li, kev siv tsheb thauj khoom feem ntau siv cov flocking los txhim kho kev sib khi thiab cov cuab yeej xav tau, thaum cov khoom siv dej tsis kam ua kom muaj huab cua tsis kam.
III. Kev Tswj Xyuas Zoo Ntawm Cov Roj Hmab Sealing Strips
Txhawm rau kom ua tau zoo ntawm cov roj hmab sealing strips, cov ntsuas tseem ceeb hauv qab no yuav tsum tau tswj hwm nruj thaum lub sijhawm tsim khoom:
• Qhov chaw nyob sab nrauv: Tus ntoo khaub lig- ntu ntu ncaj qha cuam tshuam ncaj qha rau cov kev sib dhos ncaj qha, thiab kev sib xws yuav tsum ua kom raug kev tsim kho kom zoo.
• Hardness thiab elasticity: los ntawm kev kho cov roj hmab raw cov ntaub ntawv thiab cov xwm txheej tsis zoo, cov kab ke ntawm kev sib khi tau kom muaj kev tsim nyog thiab cov khoom sib txawv.
• Kev laus tiv thaiv: Cov kev ntsuam xyuas sai sai yog siv los xyuas qhov ntev -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} term ua tau ruaj khov ntawm cov ntsaws txoj sawb.
• Xov Xwm Tshaj Tawm: Rau cov ntawv thov tshwj xeeb, acid thiab alkali tsis kam), kev xeem tshwj xeeb yog yuav tsum muaj kom paub meej.
IV. Siv cov tshuab ntawm roj hmab sealing strips
Daim ntawv thov ntawm cov roj hmab sealing strips nyob tsis yog nyob ntawm lawv cov ntaub ntawv thiab kev tsim khoom, tab sis kuj ntawm kev ua kom zoo raws li cov rooj sib tham tshwj xeeb. Piv txwv li:
• Automotive Sealing strips: cov yuav tsum muaj ob qho tib si dynamic sealing thiab kaw) thiab feem ntau siv ntau {{}}}} cov qauv hluav taws xob.
• Lub qhov rooj thiab qhov rai sealips strips: Cov no yuav tsum tau muaj huab cua zoo thiab epdm thiab PVC {{extrusion yog ib qho kev daws teeb meem.
• Muaj cov yeeb nkab sealing strips: cov no yuav tsum tau tiv thaiv kev kub siab lossis corrosive media, thiab feem ntau siv fluororububber (FKM) lossis txhawb nqa roj hmab composites.
Tag
Kev npaj ntawm cov roj hmab sealing strips yuav cuam tshuam nrog ntau thaj teb, suav nrog cov khoom siv science, txheej txheem engineering, thiab siv tshuab. Ua kom zoo dua lawv cov kev ua tau zoo yuav tsum muaj kev tswj txhua yam, los ntawm RAW cov khoom xaiv thiab sib xyaw kom moulding technology thiab post - ua. Nrog kev nce qib hauv kev lag luam thev naus laus zis, siab {3} {} Lub cev siv roj hmab), thiab kev txawj ntse roj hmab (piv txwv li, sensor {{{}}}}} Nyob rau hauv lub neej yav tom ntej, nrog kev sib txuas nruam nyob rau hauv cov ntaub ntawv tshiab thiab cov thev naus laus zis, roj hmab sealing strips yuav ua lub luag haujlwm tseem ceeb nyob rau hauv ntau-}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} kawg teb.
