Arc kunyunguduka inzira ye electrothermal metallurgical inoshandisa simba remagetsi kugadzira arc pakati pemaelectrodes kana pakati pemaelectrodes neyakanyungudutswa kunyungudutsa simbi. Arcs inogona kugadzirwa uchishandisa yakananga ikozvino kana alternating ikozvino. Paunenge uchishandisa alternating current, pachave nekukasika zero voltage pakati pema electrode maviri. Mukunyunguduka kwevacuum, nekuda kwekushomeka kwegasi pakati pema electrode maviri, zviri nyore kuita kuti arc idzime. Naizvozvo, magetsi eDC anowanzo shandiswa kunyungudika vacuum arc.
Zvinoenderana neyakasiyana nzira dzekudziya, kunyungudika kwearc kunogona kukamurwa kuita mapoka maviri: yakananga kupisa arc kunyunguduka uye isina kunanga kupisa arc kunyungudika. Iyo huru tekinoroji uye yehupfumi zviratidzo zvekunyunguduka kwearc zvinosanganisira nguva yekunyunguduka, huwandu hwechinhu chakasimba chevira chakanyungudutswa panguva yeyuniti (yekugadzira simba), unit solid solid furnace material mashandisirwo emagetsi, refractory zvinhu, electrode kushandiswa, nezvimwe.
1, Direct kudziyisa arc kunyunguduka
Iyo arc yemagetsi inogadzirwa nekudziya kwakananga arc kunyungudika iri pakati pemudonzvo we electrode uye iyo yakanyungudutswa yevira zvinhu. Chigadzirwa chevira chinopisa zvakananga nearc yemagetsi, iyo ndiyo inokonzera kupisa kwekunyunguduka. Kune marudzi maviri makuru ekudziya kwakananga arc kunyunguduka: isina vacuum yakananga yekudziya matatu-chikamu arc furnace kunyungudutsa nzira uye yakananga kupisa vacuum consumable arc furnace melting nzira.
(1) Non vacuum yakananga kudziyisa matatu-phase arc kunyungudutsa nzira. Iyi inzira inowanzoshandiswa mukugadzira simbi. Iyo steelmaking electric arc furnace ndiyo inonyanya kukosha mhando yenon vacuum yakananga kudziyisa matatu-phase yemagetsi arc furnace. Iyo yemagetsi arc furnace inowanzotaurwa nevanhu inoreva rudzi urwu rwevira. Kuti uwane yakakwirira alloy simbi, zvinodikanwa kuwedzera alloy components kune simbi, kugadzirisa kabhoni yemukati uye mamwe alloy zvirimo musimbi, bvisa tsvina inokuvadza senge sulfur, phosphorus, oxygen, nitrogen, uye isiri-metallic inclusions pazasi. huwandu hwakatarwa hwechigadzirwa. Aya mabasa ekunyungudutsa akanyanya nyore kupedzisa muchoto chemagetsi arc. Mhepo mukati memagetsi arc vira inogona kudzorwa kuve isina kusimba oxidizing kana kutodzikisa kuburikidza nekugadzira slag. Iyo alloy inoumbwa muchoto yemagetsi arc ine kurasikirwa kushoma kwekupisa, uye nzira yekudziya iri nyore kugadzirisa. Naizvozvo, kunyangwe kunyungudika kwearc kunoda huwandu hukuru hwesimba remagetsi, nzira iyi ichiri kushandiswa muindasitiri kunyungudutsa simbi dzakasiyana-siyana dzepamusoro-giredhi alloy.
(2) Yakananga kupisa vacuum arc choto kunyungudutsa nzira. Iyo inonyanya kushandiswa kunyungudutsa inoshanda uye yakakwirira kunyungudika simbi senge titanium, zirconium, tungsten, molybdenum, tantalum, niobium, uye alloys avo. Inoshandiswawo kunyungudutsa masimbi alloy akadai sesimbi inodzivirira kupisa, simbi isina tsvina, simbi yekushandisa, uye inotakura simbi. Simbi yakanyungudutswa neakananga kupisa vacuum consumable arc furnace ine kudzikira kwegasi uye inoputika tsvina yemukati, uye ingot kazhinji haina yepakati porosity. Iyo ingot crystallization yakawedzera yunifomu, uye simbi midziyo inovandudzwa. Dambudziko nekupisa kwakananga vacuum consumable arc furnace kunyunguduka nderekuti zvakaoma kugadzirisa kuumbwa kwesimbi (alloys). Kunyange zvazvo mari yemidziyo yevira yakaderera zvikuru kupfuura yevacuum induction furnace, yakakwirira kudarika iyo yemagetsi slag furnace, uye mari yekunyungudutsa zvakare yakakwirira zvikuru. Vacuum self-consuming electric arc furnace yakatanga kushandiswa mukugadzirwa kwemaindasitiri muna 1955, yakatanga kunyungudutsa titanium, uye gare gare yekunyungudutsa mamwe masimbi akakwira, simbi inoshanda, uye alloy simbi.
2, Indirect heat arc kunyunguduka
Iyo arc inogadzirwa neisina kunanga kupisa arc kunyunguduka iri pakati pema graphite electrode, uye iyo yechoto zvinhu zvinopiswa zvisina kunanga nearc. Iyi nzira yekunyungudutsa inonyanya kushandiswa kunyungudutsa mhangura nemhangura alloys. Indirect heat arc kunyunguduka kuri kuchinjwa zvishoma nezvishoma nedzimwe nzira dzekunyungudika nekuda kweruzha rwayo rwepamusoro uye husina kunaka hwesimbi.
Nguva yekutumira: Jan-25-2024