Iingenelo zezixhobo zegrafiti kunye nezinto zokufudumeza ngombane kwi-vacuum furnace

Iingenelo zezixhobo zegrafiti kunye nezinto zokufudumeza ngombane kwi-vacuum furnace

Ngokuphuculwa kwenqanaba lesithando sonyango lobushushu lwevalvu yevacuum, unyango lobushushu bevacuum luneengenelo ezikhethekileyo, kwaye unyango lobushushu bevacuum luye lwathandwa ngabantu abakweli shishini ngenxa yoluhlu lweengenelo ezinje ngokususa igesi, ukususa amafutha, ukungabi naoksijini kunye nokuzisebenzela. Nangona kunjalo, kuyaphawuleka ukuba isithando sonyango lobushushu bevacuum sinomgangatho ophezulu wezinto zokufudumeza ngombane, ezinje ngokuguquguquka kobushushu obuphezulu, ukuqhekeka kwezakhi zofuzo. Ukuguquguquka kube yinto ebalulekileyo ethintela uphuhliso lweisithando somlilo esingenamoya.
Ukuze kulungiswe le ngxaki, eli shishini lijolise kwi-graphite.Igrafayithiyenziwe ngezinye izinyithi kwaye ineenzuzo ezingenakuthelekiswa nanto. Kuyaqondakala ukuba i-graphite ithandwa kakhulu kwiintlobo ezahlukeneyo zee-vacuum heat treatment furnaces njengento yokufudumeza ngombane.
Emva koko iingenelo zonyango lobushushu lwe-graphite vacuum thermal elements
1) Ukumelana nobushushu obuphezulu: iqondo lokunyibilika kwe-graphite yi-3850 ± 50 ℃ kwaye iqondo lokubila yi-4250 ℃. Nokuba itshiswe yi-arc yobushushu obuphezulu kakhulu, ukulahleka kobunzima kuncinci kakhulu kwaye i-coefficient yokwandiswa kobushushu incinci kakhulu. Amandla e-graphite ayanda ngokunyuka kobushushu. Kwi-2000 ℃, amandla e-graphite aphindaphindwa kabini.
2) Ukuqhuba kunye nokuqhuba ubushushu: ukuqhuba kwegrafiti kuphindwe kalikhulu kuneeminerali ezingezizo ezesinyithi. Ukuqhuba ubushushu kudlula oko kwentsimbi, isinyithi, ilothe kunye nezinye izinto zesinyithi. Ukuqhuba ubushushu kuyancipha ngokunyuka kobushushu. Nokuba kubushushu obuphezulu kakhulu, igrafiti iba yi-insulator. Igrafiti inokuqhuba umbane kuba iathom nganye yekhabhoni kwigrafiti yenza kuphela iibhondi ezintathu ze-covalent nezinyeikhabhoniiiathom, kwaye iathom nganye yekhabhoni isagcina i-electron enye yasimahla yokudlulisa itshaja.
3) Ukutyeba: ukusebenza kwe-grafiti yokuthambisa kuxhomekeke kubukhulu besikali se-graphite. Okukhona isikali sikhulu, kokukhona i-friction coefficient incinci, kwaye kokukhona ukusebenza kwe-lubrication kubhetele. Uzinzo lweekhemikhali:igrafayithiinozinzo oluhle lweekhemikhali kubushushu begumbi kwaye inokumelana nokugqwala kwe-asidi, i-alkali kunye ne-organic solvent.
4) Ukuqina: i-graphite inokuqina okuhle kwaye ingagaywa ibe ngamaphepha amancinci kakhulu. Ukumelana nobushushu: xa i-graphite isetyenziswa kubushushu begumbi, inokumelana notshintsho olukhulu lobushushu ngaphandle komonakalo. Xa ubushushu butshintsha ngequbuliso, umthamo we-graphite utshintsha kancinci kwaye imingxunya ayizukubakho.
Xa siyila kwaye sicubungula i-vacuum furnace, kufuneka siqwalasele ukuba ukumelana kwento yokufudumeza yombane kutshintsha kancinci ngobushushu kwaye ukumelana kwayo kuzinzile, ngoko ke i-graphite yeyona nto ikhethwayo.