Thaum nws los txog rau sealants thiab adhesives, ob lub ntsiab lus feem ntau tsis meej pem - RTV thiab silicone.Puas yog lawv tib yam lossis puas muaj qhov sib txawv tseem ceeb?Txhawm rau txiav txim siab txog kev xaiv cov khoom tsim nyog rau koj cov kev xav tau tshwj xeeb, cia peb demystify lub ntiaj teb tsis meej ntawm RTV thiab silicone.
Cov ntsiab lus ntawm RTV thiab Silicone:
RTV, los yog chav tsev kub vulcanization, hais txog lub sealant los yog nplaum uas kho nyob rau hauv chav tsev kub tsis tas yuav tsum tau cua sov.Silicones, ntawm qhov tod tes, yog cov khoom siv hluavtaws uas muaj cov silicon, oxygen, hydrogen, thiab carbon atoms.Vim nws cov khoom siv ntau yam, nws yog dav siv los ua sealant lossis nplaum.
Tshuaj muaj pes tsawg leeg:
Thaum ob qho tib si RTV thiab silicone yog sealants, lawv muaj cov tshuaj sib txawv.RTVs feem ntau muaj lub hauv paus polymer ua ke nrog cov muab tub lim, kho cov neeg ua haujlwm thiab lwm yam khoom ntxiv.Lub hauv paus polymers yuav txawv thiab suav nrog cov ntaub ntawv xws li polyurethane, polysulfide lossis acrylic.
Silicone, ntawm qhov tod tes, yog cov khoom siv los ntawm silicon.Nws feem ntau tov nrog lwm cov tebchaw xws li oxygen, carbon thiab hydrogen, uas ua rau cov khoom siv tau yooj yim thiab ruaj khov.Kev sib xyaw tshwj xeeb ntawm cov ntsiab lus no tso cai rau silicones tswj lawv cov khoom nyob rau hauv ntau yam ntawm ib puag ncig.
Nta thiab kev siv:
Ib qho ntawm qhov sib txawv tseem ceeb ntawm RTVs thiab silicones yog lawv cov khoom thiab kev siv.
1. RTV:
- Muaj kev tiv thaiv zoo rau cov tshuaj, roj thiab roj.
- Muab siab tensile zog thiab yooj.
- Feem ntau siv hauv kev lag luam xws li tsheb, kev tsim kho thiab kev tsim khoom.
- Zoo heev rau sealing seams, sau qhov khoob thiab sib txuas cov substrates.
2. Silica gel:
- Kev tiv thaiv kub heev, UV rays, av noo thiab huab cua.
- Cov khoom siv hluav taws xob zoo heev.
- Nrhiav cov ntawv thov hauv thaj chaw xws li hluav taws xob, kev kho mob thiab kev lag luam aerospace.
- Rau sealing, potting, gasketing thiab bonding qhov twg yuav tsum tau tiv thaiv huab cua.
Curing txheej txheem:
Lwm qhov sib txawv tseem ceeb ntawm RTV thiab silicone yog lawv cov txheej txheem kho.
1. RTV:
- Atmospheric humidity los yog saum npoo yuav tsum tau pib txheej txheem curing.
- Lub sijhawm kho sai, feem ntau hauv 24 teev.
- Tej zaum yuav xav tau ib qho primer los ua raws li qee cov ntaub ntawv.
2. Silica gel:
- Kho los ntawm noo noo nyob rau hauv cov huab cua los yog siv ib tug catalyst.
- Lub sijhawm kho yog ntev dua, txij li ob peb teev mus rau ob peb hnub, nyob ntawm qhov xwm txheej xws li kub thiab av noo.
- Adheres rau feem ntau qhov chaw tsis tas yuav tsum tau primer.
Kev xav txog tus nqi:
Thaum xaiv ntawm RTV thiab silicone, tus nqi feem ntau yog qhov tseem ceeb.
1. RTV:
- Feem ntau siv nyiaj ntau dua li silicone.
- Muab kev ua tau zoo hauv nws cov nqi ntau.
2. Silica gel:
- Vim nws superior nta thiab kev ua tau zoo, tus nqi yog me ntsis siab dua.
- Txaus siab rau cov ntawv thov uas xav tau kev tiv thaiv huab cua.
Txhawm rau suav nrog, txawm hais tias RTV thiab silicone muaj qee qhov zoo sib xws li sealants, lawv qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, kev ua tau zoo, kev siv, kev kho cov txheej txheem thiab cov nqi.Nkag siab txog cov nuances no yog qhov tseem ceeb rau kev xaiv cov khoom raug rau koj qhov kev xav tau tshwj xeeb.Txawm hais tias koj xaiv RTV rau nws cov kav ntev lossis silicone rau nws cov kav ntev, kev txiav txim siab paub yuav pab koj ua tiav koj cov txiaj ntsig xav tau.
Post lub sij hawm: Sep-07-2023