Maitiro ekugadzira ma electrodes e graphite ane simba rakawanda anofanira kusangana nezvinodiwa zvakasimba zvehuwandu hwemagetsi akawandisa, kushushikana kwakanyanya kwekupisa, uye hunhu hwakasimba hwe physicochemical. Zvinodiwa zvikuru zvinoratidzwa muzvikamu zvishanu zvakakosha: kusarudzwa kwezvinhu zvisina kugadzirwa, tekinoroji yekuumba, maitiro ekuisa impregnation, kurapwa kwe graphitization, uye machining chaiyo, sezvakatsanangurwa pazasi:
I. Kusarudzwa Kwezvinhu Zvisina Kugadzirwa: Kuenzanisa Kuchena Kwakanyanya uye Magadzirirwo Akakosha
Zvinodiwa Zvikuru Zvezvinhu Zvisina Kugadzirwa
Needle coke inoshanda sechigadzirwa chikuru nekuda kwehuwandu hwayo hwegraphitization uye low coefficient yekuwedzera kwekupisa (α₀-₀: 0.5–1.2×10⁻⁶/℃), ichizadzisa zvinodiwa zvakasimba zvekupisa kwema electrodes ane simba rakawanda. Huremu hwe needle coke hwakakwira zvakanyanya kupfuura huri muma electrodes ane simba rakawanda, huchiverengera pamusoro pe60% muma electrodes ane simba rakawanda, nepo ma electrodes ane simba rakawanda anoshandisa petroleum coke.
Kugadzirisa Zvinhu Zvekubatsira
Pitch yakagadziriswa tembiricha yepamusoro inoshandiswa se binder nekuda kwekukura kwayo kwakawanda kwecarbon residue uye kuderera kwe volatile content, zvichiwedzera huwandu hwe electrode (≥1.68 g/cm³) uye simba remakanika (flexural strength ≥10.5 MPa). Pamusoro pezvo, metallurgical coke inowedzerwa kugadzirisa kugoverwa kweparticle size, kugadzirisa conductivity uye thermal shock resistance.
II. Tekinoroji Yekuumba: Kuumba Kwechipiri Kunokunda Miganhu Yehukuru
Kuumbwa kweComposite yeKudzungudza-Kuwedzeredza
Maitiro echinyakare anoshandiswa pakushandisa ma extruder makuru pakugadzira ma electrode ane dhayamita hombe, nepo ma electrode ane simba rakawanda achishandisa nzira yechipiri yekuumba:
- Kuumba Kwepakutanga: Chinhu chinobuda muchimiro chisina kuenzana chinoshandiswa kutanga kudzvanya zvinhu zvakasanganiswa kuita zvidimbu zvegirini.
- Kuumba Kwechipiri: Tekinoroji yekuumba vibration inobvisawo zvikanganiso zvemukati muzvimedu zvakasvibira, zvichiita kuti huwandu hwezvinhu hufanane.
Maitiro aya anogonesa kugadzirwa kwemaerekitirodhi makuru (semuenzaniso, anosvika 1,330 mm) uchishandisa michina midiki, zvichikunda zvipingamupinyi zvemaitiro echinyakare.
Kushandiswa kweMidziyo yeExtrusion yeIntelligent
Chishandiso che graphite electrode che 60 MN chine magadzirirwo akangwara ekureba, kuchekerera pamwe chete, uye masisitimu ekutumira zvinhu chinovandudza kurongeka kwekureba ne 55% zvichienzaniswa nemaitiro echinyakare, zvichiita kuti kugadzirwa kuenderere mberi otomatiki uye kuwedzera kushanda zvakanaka uye kugara zvakanaka kwechigadzirwa.
III. Maitiro Ekuisira: Kuisira Kwemuviri Nekumanikidzwa Kwakanyanya Kunowedzera Kuwanda Kwemuviri Uye Simba
Kubika neKuisa Mishonga Yakawanda
Maelectrode ane simba rakawanda anoda ma electrode maviri kusvika matatu ane simba guru rekuisa mvura mumhepo achishandisa pitch yakagadziriswa yepakati nepakati semushonga, nekuwedzera kwehuremu kunodzorwa pa15%–18%. Kuisa kwega kwega kunoteverwa nekubika kwechipiri (1,200–1,250℃) kuzadza maburi, zvichiita kuti huwandu hwekupedzisira hwemvura hupfuure 1.72 g/cm³ uye simba rekumanikidza re ≥26.8 MPa.
Kurapa Kwakakosha Kwema Connector Blanks
Zvikamu zvekubatanidza zvinoiswa mu "high-pressure impregnation" (≥2 MPa) uye zvinobikwa kakawanda kuti zvive nechokwadi chekuti hazvipindike pa "contact resistance" ye≤0.15 mΩ, zvichizadzisa zvinodiwa ne "high-current transmission".
IV. Kurapa kweGraphitization: Kuchinja Tembiricha Yakanyanya uye Kugadzirisa Kushanda Kwesimba Nesimba
Kugadziriswa kweAcheson Furnace Kunopisa Zvakanyanya
Tembiricha ye graphitization inofanira kusvika ≥2,800℃ kuti ishandure maatomu ekabhoni kubva muchimiro chisina kurongeka chemativi maviri kuita chimiro che graphite chakarongeka mativi matatu, zvichiita kuti pave nekusagadzikana kwakaderera (≤6.5 μΩ·m) uye kupisa kwakanyanya. Semuenzaniso, rimwe bhizinesi rakapfupisa graphitization cycle kusvika kumwedzi mishanu uye rakaderedza kushandiswa kwesimba nekushandisa ma insulation material formulations.
Matekinoroji Akabatanidzwa Ekuchengetedza Simba
Tekinoroji dzinochengetedza simba dzinochinja-chinja uye mamodheru ekushandisa simba zvine simba zvinogonesa kutarisa mitoro yemidziyo panguva chaiyo uye kuchinja otomatiki kwemaitiro ekushanda, zvichideredza kushandiswa kwesimba remapoka epombi ne30% uye kudzikisa mari yekushanda zvakanyanya.
V. Kugadzira Machining Nemazvo: Kudzora Kwakanyatsonaka Kunoita Kuti Kushande Zvakanaka
Zvinodiwa Pakunyatsoita Machining Emakanika
Kukwanisa kushivirira dhayamita ye electrode kuri ±1.5%, kushivirira kwehurefu hwese kuri ±0.5%, uye kurongeka kweshinda yekubatanidza kunosvika Kirasi 4H/4h. Kudzora kwakanyatsojeka kwejometri kunowanikwa uchishandisa CNC machining uye online detection systems, kudzivirira kushanduka kwemagetsi kunokonzerwa nekusagadzikana kwe electrode panguva yekushanda kwe electric arc furnace.
Kugadzirisa Hunhu Hwepamusoro
Tekinoroji yekubvisa tsvina isina marara inoderedza mvumo yekugadzira michina, ichivandudza kushandiswa kwezvinhu zvakabikwa. Magadzirirwo emuromo ane denderedzwa anowedzera kufambisa kwemhepo, achiwedzera goho rezvigadzirwa ne3% uye anowedzera kufambisa kwemhepo ne8%.
Nguva yekutumira: Chikunguru-21-2025