Amarimu amasondo ezimayinizisebenza ngaphansi kwezimo zokusebenza ezinzima kakhulu: umthwalo osindayo omile, umthelela oqhubekayo ovela ezindaweni ezingalingani zomgwaqo wezimayini, ukungqubuzana okulimazayo nezingcezu zamadwala kanye nengcindezi yama-cyclic. Ngaphandle kokwelashwa okushisa okufanele, amarimu ensimbi enziwe ngomgunyathi kulula ukuguga, ukukhathala ukuqhekeka, ukuwohloka unomphela kanye nokuphuka kungazelelwe, okubangela ukwehla eqolo kanye nezingozi zokuphepha kumishini yokuthuthwa kwezimayini.
Imininingwane Yezobuchwepheshe Ithebula-Amapharamitha Wokwelashwa Kokushisa & Nemiphumela Yokusebenza
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Inqubo Yokwelapha-Yokushisa |
Ibanga Lezinga Lokushisa Lenqubo |
Isikhathi Sokubamba |
Umsebenzi Oyinhloko ku-Mining Wheel Rim |
Ukuqina Komphumela Wokuthuthukisa |
Ingozi Yokwehluleka Okujwayelekile Ngaphandle Kwalokhu Kulashwa |
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Ukujwayela |
860-920 degree |
1.5-3 h |
Cwenga ukwakheka okusanhlamvu, yenza i-homogenize ukwakheka kwensimbi yangaphakathi, susa ukucindezelwa kokusakazwa/kokwakha |
Thuthukisa ukuqina kwezinto ezibonakalayo, unciphise izinga lokukhubazeka kwangaphakathi; beka isisekelo esizinzile sokuqina okulandelayo |
Ubulukhuni obungalingani, ingcindezi yokudala eyinsalela, ukuqaliswa kokuqhekeka ngaphambi kwesikhathi ngaphansi komthelela onzima |
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Ukucisha |
I-840-900 degree, ukucisha amanzi / uwoyela |
1-2.5 h |
Ukupholisa okusheshayo ukwakha isakhiwo se-martensite, ukuphakamisa ubuso nobulukhuni bomgogodla |
Khulisa ukuguga{0}}ukumelana nokulayisha{1}}umthamo wokuthwala ngokumelene nokungqubuzana kwamatshe asemayini |
Ukuhuzuka okusheshayo kwendawo, ukuwohloka komphetho ngaphansi komthwalo osindayo-womsebenzi wokumba |
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I-Tempering (Medium-Phezulu) |
480-620 degree |
2-4 h |
Khipha ukuqina okucishayo, ubulukhuni bebhalansi kanye nokuqina komthelela |
Vimbela ukuphuka okuphukayo ngaphansi komthwalo wokushaqeka njalo ezimayini ezingaphansi komhlaba ezinokhahlo |
Cisha-ukuqhekeka kwangaphakathi okudalwe, ukuphuka kwerimu kungazelelwe ngaphansi komthelela |
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Ukuqina kwendawo (Ukuqina kokungeniswa) |
880-950℃(ukushisisa kwendawo) |
0.2-0.8 h (endaweni) |
Qinisa kuphela indawo{{0}yezingubo ezigqokiwe; gcina i-rim matrix yangaphakathi iqinile |
Ukugqokwa okuphezulu-okungazweli kwangaphandle kuyilapho kugcinwa ukushaqeka{1}}kumunca umzimba wangaphakathi |
Ukuguga okusheshayo, ukuvala-ukonakala kwendawo, umjikelezo wesevisi omfushane |
Ukwelashwa kokushisa kuyindlela esebenza kahle kakhulu yensimbi yokulungisa i-microstructure yangaphakathi yensimbi ye-wheel-rim, kunokumane uguqule ubukhulu bangaphandle. Isinyathelo ngasinye sokushisisa nokupholisa siqondise izindawo ezibuthakathaka ezithile zamarimu ezimayini.
I-normalizing isusa okusanhlamvu okungalingani okubangelwa ukubumba okushisayo. Ngemuva kokubumba, izinhlamvu zensimbi zikhula ngokungajwayelekile. Ngokushisisa izinga lokushisa elibekiwe kanye nokupholisa kancane, okusanhlamvu kuphenduka kube kuhle futhi kufane, ngakho ukucindezeleka ngeke kugxile ezindaweni ezibuthakathaka kancane lapho umugqa unesisindo esikhulu sezimayini.
Ukucisha kukhulisa ubulukhuni ngokumangazayo. Inqubo yokupholisa esheshayo ikhiya izakhiwo zekristalu eqinile ngaphakathi kwensimbi, okwenza unqenqema lumelane kakhulu nokukhuhla okugayiwe okusuka ezinsimbini nasemfucumfucu ecijile yasezimayini.
Ukushisa okuphezulu ngemuva kokucisha kubalulekile. Insimbi ecishiwe iba lukhuni kodwa ibe brittle. I-Tempering ikhulula ingcindezi yangaphakathi eqeda amandla futhi ihwebe ngobulukhuni obuyingxenye ukuze kube nomthelela omuhle kakhulu. Lesi sakhiwo sigcina unqenqema ukuthi lunganqamuki lapho ushaya imigodi emigodini engaphansi komhlaba noma ezimayini zemigodi evulekile.
Ukuqina kwendawo yokungeniswa kwendawo kunikeza isisombululo esiqondisiwe. Indawo yokuxhumana egqokwa kakhulu kuphela eba lukhuni, kuyilapho umzimba werimu oyinhloko uhlala uqinile. Lo mklamo ugwema isici esivamile: amarimu agcwele umzimba wonke aqhekeka kalula ngaphansi kokushaqeka okukhulu.
Ngokugeleza komsebenzi ophelele wokwelapha ukushisa, kuqediweamarimu amasondo ezimayinizuza impilo yesevisi ende, ukwehlisa izilinganiso zokungaphumeleli ezingalindelekile kanye nokuzivumelanisa nezimo kangcono kwezokuthutha ezimayini ezisindayo zesikhathi eside.