Maitiro ekugadzira maumbirwo akaiswa
Impregnation idanho rekusarudzika rinoitwa kuitira kuvandudza zvimiro zvechigadzirwa chekupedzisira. Tars, Pitches, resins, simbi dzakanyungudutswa uye mamwe mareagents anogona kuwedzerwa kune akabikwa maumbirwo (mune akakosha maficha magirafu maumbirwo anogona zvakare kuiswa) uye mamwe mareagents anoshandiswa kuzadza ma voids akaumbwa mune carbonised zvinhu. Kunyura nemvura inopisa yemarasha ine kana isina vacuum uye autoclaving inoshandiswa. Nzira dzakasiyana dzekuisa pamuviri dzinoshandiswa zvichienderana nechigadzirwa senge asi batch kana quasi-kuenderera mberi maoparesheni anoshandiswa. Iyo impregnation cycle inowanzo sanganisira preheating maumbirwo, impregnation uye kutonhora. Iyo yekuomesa reactor inogona kushandiswa zvakare. Electrodes iyo ichave yakasvibiswa inogona kupiswa nemarara inopisa ye thermal oxidiser. Makabhoni akasarudzika chete anoiswa nesimbi dzakasiyana siyana. Izvo zvakabikwa kana graphised zvikamu zvinogona kuisirwa pamwe nezvimwe zvinhu, semuenzaniso resins kana simbi. Impregnation inoitwa nekunyura, dzimwe nguva pasi pevacuum uye dzimwe nguva pasi pekumanikidzwa, autoclaves inoshandiswa. Zvikamu zvakaiswa pamuviri kana kusungwa nemarasha tara zvinodzoreredzwa. Kana resin bonding yakashandiswa, inorapwa.
Maitiro ekugadzira maumbirwo akadzokororwa kubva kune akaiswa pamuviri
Kubika nekubika zvakare Kubika zvakare kunoshandiswa chete kune maumbirwo asina pamuviri. Maumbirwo egirini (kana maImpregnated shapes) anodzoserwa patembiricha inosvika 1300 °C vachishandisa mavira akasiyana-siyana senge tunnel, single chamber, multiple chamber, annular uye push rod furnaces zvichienderana nekukura nekuoma kwechigadzirwa. Kuramba kubheka kunoitwa zvakare. Mashandiro echoto akafanana neaya anoshandiswa kugadzira ma electrode kubheka maitiro, asi iyo
mavira kazhinji maduku.
Nguva yekutumira: Mar-02-2021