Kusiyana pakati pa matenthedwe a silika gel ndi mafuta otentha

1. Kodi matenthedwe a silika gel (zomatira zomatira) ndi zotani?

Silicone yochititsa chidwi nthawi zambiri imatchedwanso guluu wa thermally conductive potting kapena guluu wa RTV wa thermally conductive. Ndi moto wochepera Ikhoza kuchiritsidwa kutentha kapena kutentha. Kutentha kukakhala kokwera kwambiri, mankhwala ake amachira msanga. zapaderazi. Kusiyanitsa kwakukulu ndi mafuta a silicone amatenthedwa ndikuti silicone yotentha imatha kuchiritsidwa ndipo imakhala ndi zinthu zina zomatira.

Thermally conductive silika gel (thermally conductive potting guluu) ndi mtundu wa mphira silikoni, amene ndi wamadzi mphira wa chimodzi-chigawo kutentha vulcanization chipinda. Kamodzi powonekera mlengalenga, ma monomers a silane momwemo amasunthika kuti apange maukonde, dongosololi limalumikizidwa, silingasungunuke ndi kusungunuka, ndi zotanuka, zimakhala za rubbery, ndipo zimamatira ku zinthu nthawi yomweyo. Kutentha kwake ndikokwera pang'ono kuposa mphira wamba, koma ndikotsika kwambiri kuposa mafuta a silicone conductive conductive, ndipo akachiritsidwa, zimakhala zovuta kulekanitsa zinthu zomangika.

2. Kodi mafuta otentha ndi chiyani?
Thermally conductive silikoni mafuta nthawi amatchedwanso "thermally conductive phala", "silicon phala", thermally conductive silikoni girisi ndi mtundu wa mkulu matenthedwe conductivity insulating silikoni zakuthupi, sachiza, ndipo akhoza kukhalabe mkhalidwe wa mafuta kwa nthawi yaitali. pa kutentha kwa -50°C-+230°C thermally conductive material. Sikuti ali ndi kutchinjiriza kwambiri magetsi, komanso ali ndi madutsidwe kwambiri matenthedwe matenthedwe, ndipo nthawi yomweyo ali otsika mafuta kulekana (amakonda ziro), mkulu ndi otsika kutentha kukana, madzi kukana, ozoni kukana, ndi nyengo kukana kukalamba.

Itha kugwiritsidwa ntchito kwambiri pazinthu zosiyanasiyana zamagetsi, komanso kukhudzana pakati pa zinthu zotenthetsera (machubu amphamvu, zowongolera zoyendetsedwa ndi silicon, matumba amagetsi amagetsi, etc.) , shock-umboni ndi katundu wina.

Ndi yoyenera kupaka pamwamba kapena kuyika poto pazida zosiyanasiyana za microwave monga kulumikizana kwa microwave, zida zotumizira ma microwave, magetsi apadera a microwave, ndi magetsi okhazikika. Mtundu uwu wa zinthu za silicon umapereka matenthedwe abwino kwambiri azinthu zamagetsi zomwe zimapanga kutentha. Monga: ma transistors, ma CPU Assembly, thermistors, sensors kutentha, zida zamagetsi zamagalimoto, mafiriji agalimoto, ma module amagetsi, mitu yosindikizira, ndi zina zambiri.

3. Kufanana ndi kusiyana pakati pa gel osakaniza silika ndi mafuta otentha
Zomwe amafanana: onse ali ndi matenthedwe otenthetsera ndi kusungunula, ndipo onse ndi zida zolumikizirana ndi kutentha.

kusiyana kwake:

Silicone yotentha kwambiri (yomata potting guluu): yomata (yokakamira, yovuta kuchotsa,

Chifukwa chake, amagwiritsidwa ntchito kwambiri pazochitika zomwe nthawi imodzi yokha - kulumikizana nthawi kumafunika. Zimasungunuka, zimasungunuka kutentha kwambiri (viscous liquid), zimakhazikika (zowonekera) pa kutentha kochepa, sizingasungunuke ndi kusungunuka, ndipo zimakhala zotanuka.

Thermally conductive silikoni girisi (thermally conductive phala): Adsorptive, non-yomata, phala theka-zamadzimadzi, osasunthika, osachiritsika (sakhuthala pakatentha kwambiri, ndipo sawonda pakatentha kwambiri).

4. Kuchuluka kwa ntchito

Poyerekeza ndi gel osakaniza a silica, kugwiritsa ntchito mafuta a silicone ndikokwanira. Zogulitsa zambiri zamafakitale ndi zamagetsi zimagwiritsa ntchito mafuta otenthetsera a silicone pomwe kutentha kumafunikira.

Kuphatikiza apo, pali mitundu yambiri yamafuta a silikoni, ndipo anthu amawonjezera "zonyansa" kumafuta oyera amafuta a silicone kuti apititse patsogolo kutenthetsa kwake.

Zonyansazi ndi ufa wa graphite, ufa wa aluminiyamu, ufa wamkuwa ndi zina zotero.

Mafuta a silikoni oyera ndi oyera amkaka, mafuta a silicone osakanikirana ndi graphite ndi akuda, mafuta a silicone osakanikirana ndi aluminiyamu ufa ndi otuwa komanso onyezimira, ndipo mafuta a silicone osakanikirana ndi ufa wamkuwa amakhala achikasu.