Muaj ntau yam ntawm graphite daim hlau, tab sis lawv feem ntau tuaj yeem muab faib ua ob hom: cov txiav thiab ua tiav ncaj qha los ntawm cov khoom siv raw, thiab cov resin-impregnated graphite daim hlau (uas yog txiav los ntawm cov khoom siv raw thiab tom qab ntawd impregnated nrog resin lossis lwm yam khoom).
Graphite nplooj ntawv yog tsim los ntawm ntau yam ntaub ntawv los ntawm cov txheej txheem tshwj xeeb.
Piv rau lwm cov ntaub ntawv, graphite nplooj ntawv muaj kev ruaj ntseg zoo dua. Yog li ntawd, lawv tau dav siv los tiv thaiv- cov khoom siv corrosive, ua haujlwm zoo hloov pauv rau ferrous thiab non-ferrous hlau-tshwj xeeb stainless hlau.
Graphite phajtsis yooj yim oxidize hauv huab cua ntawm qhov kub thiab txias hauv qab 400 degree. Tsuas yog cov muaj zog oxidizing acids (xws li nitric acid, fuming sulfuric acid, chromic acid, thiab aqua regia), graphite tseem ruaj khov hauv txhua yam tshuaj lom neeg.
Lawv tau siv dav hauv kev lag luam xws li metallurgy, electronics, machinery, chemicals, thiab electrochemistry. Muab lawv daim ntawv thov dav, lawv cov yam ntxwv tshwj xeeb thiab qhov zoo yog dab tsi?
1. Yooj yim ntawm kev ua: Lawv tuaj yeem raug tuag- txiav rau ntau qhov ntau thiab tsawg, duab, thiab thicknesses; tuag- cov ntawv txiav tiaj tiaj muaj nyob rau hauv cov tuab ntawm 0.05 hli mus rau 1.5 hli.
2. Siab-kub tsis kam: Lawv tuaj yeem tiv taus qhov kub txog li 400℃thiab nyob twj ywm ua haujlwm ntawm qhov kub qis dua -40 degree.
3. Cov thermal conductivity siab: Hauv - dav hlau thermal conductivity ntawm graphite daim hlau tuaj yeem ncav cuag 1500 W / m·K. Lawv thermal kuj yog 40% qis dua li ntawm txhuas thiab 20% qis dua tooj liab.
4. Flexibility: Lawv tuaj yeem yooj yim laminated nrog hlau, rwb thaiv tsev txheej, los yog ob npaug -sided nplaum daim kab xev, muab kev yooj yim tsim; lawv tuaj yeem muab tau nrog cov nplaum nplaum.
5. Lub teeb yuag thiab nyias: Lawv yog 30% sib zog dua li txhuas daim hlau thiab 80% sib zog dua cov phaj tooj liab ntawm tib qhov ntev.
6. Yooj yim ntawm kev siv: Graphite heat spreaders tuaj yeem siv tau yooj yim rau ob qho tib si tiaj tus thiab nkhaus.
Vim lawv cov khoom siv hluav taws xob zoo heev, siab -kub tsis kam, tiv taus cov kua qaub thiab alkali corrosion, thiab yooj yim ntawm kev ua, graphite phaj yog dav siv hauv kev lag luam xws li metallurgy, tshuaj, thiab electrochemistry.
Zoo heev Corrosion Resistance
Cov graphite daim hlau no yog tsim los siv siab -zoo graphite- cov khoom siv carbon thiab cov organic tebchaw tiv taus cov acids muaj zog. Qhov no muaj pes tsawg leeg zoo txo porosity thiab nce bulk ntom, endowing cov khoom nrog zoo heev corrosion thiab hnav tsis kam.
Kev ua haujlwm ruaj khov thiab kav ntev
Impregnated graphite daim hlau siv lub siab - lub zog organic binder thiab cov additives siab heev, ua rau lub zog muaj zog, zoo heev hnav tsis kam, thiab kev ruaj ntseg tshwj xeeb. Cov khoom ntawm cov qauv tseem tsis cuam tshuam los ntawm qhov kub thiab txias.
Precision Dimensions
Tsim los ntawm compression molding, cov phaj feature siab molding zoo thiab meej cov duab thiab qhov ntev. Cov khoom lag luam tseem tuaj yeem tsim ua kom tau raws li cov kev xav tau tshwj xeeb, ua kom txaus siab rau qhov xav tau ntawm cov txheej txheem kev tsim kho masonry.
Tsawg Thermal Expansion thiab Linear Hloov Tus Nqi
Cov khoom xa tuaj ruaj khov thiab ua haujlwm ntev thaum siv nyob rau hauv qhov kub thiab txias txog li 180 degree.