Potting tebchaw, dav siv nyob rau hauv electronics, hluav taws xob, thiab kev lag luam teb rau kev tiv thaiv thiab encapsulation, tshuav lawv cov kev ua tau zoo heev rau lub scientific tsim ntawm lawv formulation thiab lub rational xaiv ntawm cov khoom tseem ceeb. Kev nkag siab txog lawv cov khoom tseem ceeb thiab cov txheej txheem ntawm kev ua haujlwm yuav pab kom nkag siab zoo dua ntawm cov khoom siv thiab kev siv ciam teb.
Lub hauv paus qauv ntawm potting tebchaw feem ntau muaj xws li lub hauv paus resin, curing agent, muab tub lim, additives, thiab diluent. Ntawm cov no, lub hauv paus cob txiav txim siab cov cuab yeej cuab tam, qhov kub thiab txias, thiab cov yam ntxwv ntawm cov khoom sib txuas, ua haujlwm raws li lub hauv paus txheej txheem. Tam sim no, lub hauv paus ntsiab lus tseem ceeb yog epoxy resin, silicone resin, thiab polyurethane resin: epoxy resin muaj lub zog txhua yam thiab cov khoom siv hluav taws xob zoo heev, tsim cov qauv tawv thiab ntom tom qab kho; silicone resin excels nyob rau hauv yooj, siab thiab tsis kub tsis kam, thiab huab cua tsis kam, ua rau nws haum rau ib puag ncig nrog kub sib txawv los yog yuav tsum tau anti- laus zog; polyurethane resin excels elasticity thiab abrasion tsis kam, thiab feem ntau yog siv nyob rau hauv daim ntawv thov yuav tsum tau ib tug tej yam℃ntawm deformation.
Tus neeg sawv cev kho yog cov khoom tseem ceeb uas ua rau lub hauv paus resin hloov pauv los ntawm cov kua mus rau lub xeev ruaj khov, ua tiav - txuas thiab kho los ntawm cov tshuaj tiv thaiv nrog cov resin. Ntau hom resins sib haum rau cov txheej txheem sib txawv. Piv txwv li, amines thiab anhydrides yog siv nyob rau hauv epoxy systems, thaum platinum - catalyzed ntxiv los yog condensation curing agents yog siv nyob rau hauv silicone systems. Hom thiab tus nqi ntawm curing tus neeg saib xyuas ncaj qha cuam tshuam rau qhov ceev ceev, qhov kawg hardness, thiab kub tsis kam.
Fillers nyob rau hauv potting tebchaw pab ntau lub zog, nrog rau kev txhawb zog, thermal conductivity, nplaim taws retardancy, thiab viscosity hloov. Feem ntau siv inorganic fillers muaj xws li alumina, silica fume, calcium carbonate, thiab txhuas hydroxide. High thermal conductivity muab tub lim tuaj yeem txhim kho lub peev xwm ntawm cov cua sov ntawm cov colloid, thaum nplaim hluav taws- cov khoom siv retardant pab txhim kho qhov ntsuas hluav taws kub. Cov khoom siv ntxiv muaj xws li cov khoom sib txuas, cov defoamers, cov neeg ua haujlwm theem, thiab cov tshuaj tiv thaiv - cov tshuaj tiv thaiv, siv los txhim kho cov dej ntub dej, tshem tawm cov npuas, ua kom zoo rau daim ntawv thov kev ua haujlwm, thiab tiv thaiv kev khaws cia stratification. Diluents tuaj yeem kho viscosity thaum tsim nyog, ua kom yooj yim potting lossis automated txheej, tab sis lawv qhov cuam tshuam rau kev kho cov tshuaj tiv thaiv yuav tsum tau txiav txim siab.
Kev sib xyaw ua ke ntawm qhov sib txawv ntawm qhov sib txawv tso cai rau potting tebchaw kom tau raws li ntau yam kev xav tau. Piv txwv li, siab - fais fab hluav taws xob modules hais txog qhov sib npaug ntawm thermal conductivity thiab rwb thaiv tsev, thaum cov khoom siv sab nraum zoov tseem ceeb rau huab cua tiv thaiv thiab UV tsis kam. Raws li daim ntawv thov ib puag ncig tau nce zuj zus, kev tsim cov khoom tsim tau nce mus rau ntau qhov kev sib koom ua ke, ua kom cov txheej txheem hloov pauv tau thiab txhim kho ntev ntev - kev ntseeg tau. Kev nkag siab tob txog cov khoom tseem ceeb thiab kev ua haujlwm ntawm potting tebchaw tuaj yeem muab lub hauv paus kev tshawb fawb rau kev xaiv cov khoom siv thiab kev ua haujlwm zoo, tsav tsheb kev nce qib thiab kev txhim kho zoo hauv kev lag luam.
