Roj hmab foob yog siv dav hauv ntau yam kev lag luam thiab tshuab tshuab. Lawv cov txheej txheem compression yog qhov taw qhia tseem ceeb rau kev ntsuas kev ua haujlwm foob thiab lub neej.
Cov txheej txheem compression yog hais txog qib uas cov khoom siv roj hmab tsis tuaj yeem rov qab los rau nws qhov loj me tom qab compressed thiab tso tawm.
Lub ntsiab lus ntawm compression set
Cov txheej txheem compression yog hais txog feem pua ntawm cov thickness hloov thiab thawj lub thickness ntawm cov roj hmab foob tom qab nws tau khaws cia ntawm qhov kub thiab txias rau qee lub sijhawm, lub siab tso tawm thiab txias rau hauv chav tsev kub.
Cov txheej txheem compression qhia txog qhov elastic rov qab muaj peev xwm ntawm cov khoom siv roj hmab thiab yog qhov tseem ceeb rau kev ntsuas kev ua haujlwm ruaj khov ntawm cov ntsaws ruaj ruaj hauv kev siv mus ntev.
Yam cuam tshuam rau compression set
1. Khoom siv:
- Hom roj hmab: Cov roj hmab sib txawv (xws li roj hmab nitrile, fluororubber, silicone roj hmab, thiab lwm yam) muaj cov yam ntxwv sib txawv.
- Crosslinking ceev: Qhov siab dua qhov crosslinking ceev ntawm cov roj hmab, qhov zoo dua nws cov elastic rov qab muaj peev xwm thiab qhov me me ntawm compression teeb.
- Fillers: Fillers xws li carbon dub thiab silica muaj qee yam cuam tshuam rau lub compression txheej ntawm roj hmab. Hom thiab tus nqi ntawm cov fillers yuav cuam tshuam qhov kev ua tau zoo kawg.
2. Kub thiab sijhawm:
- Kub: Kub kub yuav ceev cov laus thiab creep ntawm cov ntaub ntawv roj hmab, uas ua rau muaj zog compression txheej.
- Sijhawm: Lub sijhawm compression ntev dua, qhov ntau dua qhov deformation mus tas li ntawm cov khoom siv roj hmab.
3. Siab:
Lub siab loj: qhov siab dua, qhov ntau dua qhov deformation ntawm cov khoom siv roj hmab, qhov ua rau rov qab muaj peev xwm, thiab ntau dua cov txheej txheem compression.
4. Ib puag ncig nruab nrab:
Tshuaj nruab nrab: Kev ua haujlwm ntawm cov khoom siv roj hmab hauv cov tshuaj lom neeg sib txawv yog txawv. Qee cov tshuaj lom neeg tuaj yeem ua rau cov khoom siv roj hmab aging thiab nce compression set.
5. Vulcanization tej yam kev mob:
Vulcanization kub thiab sijhawm: Qhov kub thiab lub sijhawm ntawm cov txheej txheem vulcanization yuav cuam tshuam rau qhov sib txuas ntawm cov roj hmab, yog li cuam tshuam rau cov txheej txheem compression.
Compression set test method
1. Cov khoom siv kuaj:
- Compression fixture: siv los kho thiab compress cov qauv roj hmab.
- Kev tswj qhov kub thiab txias: siv los tswj qhov ntsuas kub ib puag ncig.
- Cov cuab yeej ntsuas: xws li calipers, ntsuas qhov tob, thiab lwm yam, yog siv los ntsuas qhov tuab ntawm cov qauv.
2. Cov kauj ruam xeem:
- Npaj cov qauv: Npaj cov qauv roj hmab raws li tus qauv loj, feem ntau yog cylindrical lossis square.
- Nruab tus qauv: Nruab tus qauv hauv qhov compression fixture thiab kho nws mus rau qhov teev compression npaum li cas.
- Thaum tshav kub kub thiab tuav: Muab cov khoom tso rau hauv lub thawv kub tas li, ua kom sov rau qhov kub thiab txias, thiab khaws cia rau ib lub sijhawm (xws li 22 teev).
- Txias thiab ntsuas: Tso lub siab, txias rau hauv chav tsev kub, ntsuas lub thickness ntawm cov qauv, thiab xam cov compression mus tas li deformation.
3. Cov qauv thiab specifications:
- TS EN ISO 815: Cov txheej txheem thoob ntiaj teb uas qhia txog cov txheej txheem kev ntsuas compression rau cov khoom siv roj hmab.
- ASTM D395: American Society for Testing and Materials standard uas piav qhia txog cov txheej txheem compression teem rau cov khoom siv roj hmab sib txawv.
Daim ntawv thov thiab kev soj ntsuam ntawm Compression Set
1. Kev ntsuas kev ua tau zoo:
Sealing kev ua tau zoo: qhov me me ntawm compression mus tas li deformation, qhov zoo dua lub sij hawm ntev sealing kev ua tau zoo ntawm lub foob.
Kev pab lub neej: Cov ntsaws ruaj ruaj nrog loj compression mus tas li deformation feem ntau muaj lub neej ua haujlwm luv dua.
2. Kev xaiv cov khoom siv:
Xaiv cov ntaub ntawv raws li daim ntawv thov ib puag ncig: Nyob rau hauv qhov kub thiab txias, kev kub siab, los yog tshuaj lom neeg corrosion ib puag ncig, xaiv cov ntaub ntawv nrog me me compression mus tas li deformation.
Optimize formula design: Txhim kho qhov compression mus tas li deformation kev ua tau zoo ntawm cov khoom los ntawm kev kho tus neeg sawv cev sib txuas, muab tub lim, thiab lwm yam hauv cov qauv roj hmab.
3. Tsim thiab tsim khoom:
Tsim nyog tsim ntawm compression: Hauv kev tsim cov ntsaws ruaj ruaj, qhov compression yuav tsum raug xaiv kom tsim nyog kom tsis txhob muaj deformation tshwm sim los ntawm compression ntau dhau.
Ua kom zoo rau cov txheej txheem vulcanization: Los ntawm kev ua kom zoo ntawm vulcanization kub thiab lub sijhawm, qhov sib txuas ntawm cov roj hmab yog nce thiab compression mus tas li deformation txo.
4. Kev soj ntsuam tsis ua haujlwm:
Cov dej tsis ua hauj lwm: Cov ntsaws ruaj ruaj nrog loj compression mus tas li deformation yuav ua rau to, tshwj xeeb tshaj yog nyob rau hauv high-pressure los yog high-temperature ib puag ncig.
Lub neej luv luv: Tsis tu ncua xyuas cov compression mus tas li deformation ntawm cov ntsaws ruaj ruaj thiab hloov cov laus los yog ntau dhau deformed seals hauv lub sijhawm.
Xaus
Lub compression txheej ntawm roj hmab foob yog ib qho tseem ceeb qhia rau kev ntsuam xyuas lawv cov kev ua tau zoo thiab lub neej. Los ntawm kev nkag siab txog yam cuam tshuam rau compression set, xeem txoj kev, thiab kev soj ntsuam ntawm daim ntawv thov, peb tuaj yeem xaiv cov khoom siv roj hmab zoo dua, thiab txhim kho cov txheej txheem tsim thiab tsim khoom, yog li txhim kho cov kev sib khi thiab kev pabcuam lub neej ntawm cov ntsaws ruaj ruaj thiab ua kom muaj kev ntseeg siab thiab kev nyab xeeb ntawm lub cev.
Peb lub Hoobkas tsim txhua yam roj hmab foob nrog raucustomized seals. Thovtiv tauj pebyog tias koj xav tau lawv.