Ukubuka konke kobuchwepheshe be-SAW Flux-cored Wire Hardfacing
Isimiso Sokusebenza kanye Nezimpawu Zenqubo
2.1 Isimiso Sokusebenza
Uma i-SAW hardfacing isebenzisa i-flux-cored wire, i-arc iyasha phakathi kokuphela kwentambo kanye nobuso be-substrate. I-granular flux emboze indawo ye-arc ihlukanisa umoya echibini elincibilikisiwe futhi ivikele insimbi encibilikisiwe ekungcolisweni nasekungcolisweni yi-nitriding. I-metal sheath ye-flux-cored wire iyancibilika ngaphansi kokushisa kwe-arc, kuyilapho i-alloy powder engaphakathi kwe-core incibilika echibini elincibilikisiwe, ilungisa ukwakheka kwamakhemikhali kwengqimba yokumboza. Ngemva kokupholisa, i-slag eyakhiwe yi-flux iyaqina ebusweni be-weld, engasuswa kalula, ishiye ungqimba lokumboza olubushelelezi noluqinile.
2.2 Izici Zenqubo Eyinhloko
Ukusebenza Kahle Kokufaka Isikhundla: I-SAW ingasebenzisa ugesi omkhulu (ngokuvamile ongu-300~800A) wokushisela okuqhubekayo, izinga lokufakwa lingafinyelela ku-8~12 kg/h, okuphindwe kabili kuya kathathu kunelokushisela i-arc ngesandla, okufanelekela ukukhiqizwa ngobuningi kwamapuleti okuguguleka endaweni enkulu.
Ukwakheka kwe-Alloy Okulawulwayo: Intambo ene-flux-core ingangeza izinto ezahlukahlukene ezakha i-carbide njenge-chromium, i-molybdenum, i-vanadium, i-tungsten kanye ne-niobium engxenyeni yempuphu, engalawula ngokunembile ubulukhuni kanye nokumelana nokuguguleka kwengqimba yokumboza ngokulungisa okuqukethwe kwalezi zinto, uma kuqhathaniswa nentambo eqinile, inokuguquguquka okukhulu ekwakhiweni kwe-alloy.
Ikhwalithi Enhle Yokwakha: Ngaphansi kokuvikelwa kwe-arc flux engaphansi kwamanzi, ungqimba lokufaka ungqimba luyafana futhi lubushelelezi, alunawo ama-splatter asobala, futhi umthwalo wokusebenza ngemva kokushisela uncane. Ukujula kokungena kungalungiswa ngokushintsha amapharamitha okushisela, okungalawula ngempumelelo izinga lokuxuba le-substrate kuya kungqimba lokufaka ungqimba, kuqinisekiswe ubulukhuni kanye nokumelana nokuguguleka kongqimba lokufaka ungqimba.
Ukusebenza Okuzenzakalelayo Okuzinzile: Yonke inqubo ingafezeka ngokusebenza ngomshini nangokuzenzakalela, okunciphisa izidingo zamakhono abasebenzi futhi kuqinisekiswe ukuhambisana kwekhwalithi yepuleti ngalinye lokuguguleka.
Ukuhlukaniswa Kwesistimu Ejwayelekile Ye-Alloy kanye Nokusebenza
Izintambo ze-SAW flux-core ze-wear plate hardfacing zihlukaniswa kakhulu ngokuya ngokwakheka kwazo kwe-alloy, futhi izinhlelo ezahlukene ze-alloy zihambisana nezimo ezahlukene zokusetshenziswa kanye nokumelana nokuguguleka. Izigaba ezivamile yilezi ezilandelayo:
| Uhlelo lwe-alloy | Izinto Eziyinhloko Ze-alloy | Ibanga Lokuqina (HRC) | Izici Eziyinhloko Zokusebenza | Izicelo Ezijwayelekile |
| Uhlobo lwe-Chromium Cast Iron oluphezulu | Cr 15~30%, C 2~5%, inani elincane le-Mo, Ni, Nb | 55~65 | Ukumelana okuhle kakhulu nokuguguleka, ukumelana okuthile komthelela, izindleko eziphansi, uhlelo lwe-alloy oluvuthiwe | Amapuleti okuguguleka okujwayelekile okumbiwa phansi, ama-crusher liner, ama-cement mill liner, amapuleti okuhambisa i-scraper |
| Uhlobo lwe-Chromium Carbide Composite | I-Cr 25~40%, C 3~6%, kufakwe i-V, W, Ti | 60~68 | Ingxenye enkulu ye-carbide eqinile, ukumelana nokugqokwa okukhulu kakhulu, ukuqina okuncane okungekuhle | Izimo ezidinga ukuguguleka okukhulu njengemishini yokwenza isihlabathi, amazinyo okuchoboza insimbi, amapuleti amazinyo ebhakede lokumba |
| Uhlobo lwe-Martensite ye-Alloy ye-Carbon ephansi | Cr 4~10%, Mo 1~3%, Mn 1~2%, C 0.2~0.6% | 35~50 | Ukuqina okuhle komthelela, ukumelana okuhle kokuphambuka kokushisela, kungathwala umthwalo omkhulu womthelela, ukumelana okuphakathi kokuguguleka | I-blade ye-bulldozer, ipuleti lomphetho webhakede lomgodi, indawo enkulu yefosholo yokumba edinga ukumelana nokushaya okukhulu |
| Uhlobo lwe-Niobium Vanadium Carbide | I-Nb 10~20%, V 5~15%, Cr 10~15% | 62~68 | I-carbide eqinile enezinhlamvu ezinhle, ukumelana okuhle kakhulu nokuguguleka kanye nokusebenza kahle kokushisa okuphezulu | Izimo zokuguguleka kwezinga lokushisa eliphezulu njengezingqwembe zokuhambisa ezishisa kakhulu, ama-liner emishini yokuthulula |
| Uhlobo Oluqinisiwe Lwe-Ceramic Oluhlanganisiwe | Kwengezwe izinhlayiya ze-ceramic ezifana ne-WC, i-TiC engxenyeni eyinhloko yempuphu | 65~72 | Ukumelana nokuguguleka okukhulu, izindleko eziphezulu | Izimo zokuguguleka okukhulu njengezigubhu zokugunda amalahle, izibambo zomshini wokugaya imigwaqo |
Izinkomba Zokusebenza Eziyinhloko Zepuleti Lokugqoka
Ukusebenza kwepuleti lokuguguleka eliqinile kuhlolwa kakhulu yizinkomba ezilandelayo ezibalulekile:
4.1 Ukuqina Kwesendlalelo Sokumboza
Ukuqina kuyisibonakaliso esiyisisekelo kakhulu sokulinganisa ukumelana nokuguguleka. Ngokuvamile, uma ubunzima buphakeme, kulapho ukumelana nokuguguleka okungcono khona. Ukuqina kwamapuleti okuguguleka aqinile emakethe kugxile kakhulu ku-50~65 HRC, futhi imikhiqizo ekhethekile ingafinyelela ngaphezu kwe-70 HRC. Kufanele kuqashelwe ukuthi ukuhlolwa kokuqina kudinga ukwenziwa ngemuva kokuba ungqimba lobuso luzinzile, ngokuvamile ngemva kokususa ungqimba lwe-slag oluyi-1~2mm kanye ne-dilution ukuqinisekisa ukuthi umphumela wokuhlolwa uyiqiniso.
4.2 Izinga Lokuncibilikisa
Izinga lokuxuba libhekisela engxenyeni yezingxenye ze-substrate ezincibilikisiwe ezixutshwe nengqimba yokufakelwa. Izinga lokuxuba eliphezulu kakhulu lizonciphisa okuqukethwe kwezinto ze-alloy kungqimba yokufakelwa, okuholela ekunciphiseni ubulukhuni kanye nokumelana nokuguguleka. Ku-hardfacing ye-SAW enentambo ye-flux-core, ukulawulwa kwenqubo okunengqondo kungalawula izinga lokuxuba ngaphakathi kuka-10 ~ 20%, kanti i-multi-layer surfacing inganciphisa kakhulu ithonya lokuxuba.
4.3 Ukumelana Nokuqhekeka
Iningi lezendlalelo eziqinile eziguga kakhulu ziyizinto ezinekhabhoni ephezulu kanye ne-alloy ephezulu, ezivame ukukhiqiza imifantu yokushisela ngesikhathi sokupholisa. Umklamo wefomula onengqondo wentambo ene-flux-core kanye nokushisa ngaphambi kokushisela (ngokuvamile ukushisa kusengaphambili kufike ku-150~300℃ ngokwezinhlelo ezahlukene ze-alloy) kunganciphisa ngempumelelo ukuthambekela kokuqhekeka. Ngezinhlelo zokusebenza ezingadingi imifantu ebusweni bepuleti yokuguga, izinhlelo ze-alloy ezinekhabhoni ephansi noma amafomula akhethekile amelana nokuqhekeka angakhethwa.
4.4insimbi yekhabhoni, kanye nepuleti lokugqokwa elihlanganisiwe eliqinisiwe lingafinyelela ngaphezu kwama-tim angu-20Ukumelana Nokugqoka
Isibonakaliso esiqondile kakhulu sokuhlola ukusebenza kwepuleti lokuguguleka ukumelana nokuguguleka okuhlobene, okungukuthi, isilinganiso sokulahlekelwa yisisindo sepuleti lokuguguleka elivivinyiwe kanye nesampula ejwayelekile ngaphansi kwezimo ezifanayo zokuhlolwa kokuguguleka. Ukumelana nokuguguleka kwepuleti eliqinile lensimbi elino-chromium ephezulu ngokuvamile kuphindwe ka-5 ~ 10 kunokwezinga eliphansi elijwayelekile.
Umhlahlandlela Wokukhetha Wezimo Ezihlukene Zohlelo Lokusebenza
Uma ukhetha ucingo olune-SAW flux-core lwe-wear plate hardfacing, ludinga ukuhambisana nohlobo oluyinhloko lokwehluleka kwengxenye yokuguga:
Ukuguguleka okubukhali okunethonya eliphansi: Njenge-chute yezinto zokusetshenziswa zesamente, ipuleti lokuhlola i-ore, i-conveyor yesihlabathi. Kunconywa ukukhetha ucingo olune-flux-core olunohlobo lwe-chromium olune-58~62 HRC, olusebenza kahle kakhulu futhi olungahlangabezana nezidingo zesikhathi senkonzo.
Umthelela onamandla kanye nokugqokwa okukhuhlayo: Njenge-blade ye-bulldozer, ibhakede lemishini yobunjiniyela, ikhanda lesando semayini. Kuyadingeka ukuthi ungqimba olungagugi lube nokuqina okuthile ngenkathi lunokumelana nokuguguleka, futhi kunconywa ukukhetha ucingo olune-martensitic alloy flux-core olune-40~50 HRC ukuze kugwenywe ukuxebuka nokuqhekeka kongqimba olungaphezulu lapho lushayisana.
Izimo zokuguga kakhulu: Njengezingxenye zokusebenza zemishini yokumba amalahle, amapuleti okugaya okwakhiwa komgwaqo, ama-liner okuchoboza i-iron ore. Kunconywa ukukhetha i-chromium carbide composite noma i-ceramic reinforced flux-core wire ene-62~68 HRC, engandisa kakhulu impilo yenkonzo yezingxenye, yize izindleko ziphezulu.
Ukushisa okuphezulu: Njengeziphalethi zomshini wokusinta, amapuleti okuhambisa i-coke oven, amapuleti okucubungula i-metallurgical slag. Kunconywa ukukhetha ucingo oluhlanganisiwe lwe-niobium-vanadium alloyed flux-core, olugcina ubulukhuni obuphezulu kanye nokumelana ne-oxidation emazingeni okushisa asebenzayo afinyelela ku-600℃.
Amaphuzu Okufanele Uwaqaphele Enqubweni Yokushisela
Ukuze uthole amapuleti okugqoka aqinile asezingeni eliphezulu, kubalulekile ukulawula amaphuzu abalulekile enqubo yokushisela:
Amalungiselelo Ngaphambi Kokushisela: Ubuso be-substrate kufanele buhlanzwe kusuka ku-oyela, ukugqwala kanye ne-oxide scale ukuze kugwenywe ukubhoboka kanye nokukhubazeka kokufakwa. Ku-substrate ezijiyile kanye nezintambo ezine-alloy ephezulu, ukushisa kusengaphambili kufike ku-150~300℃ kunganciphisa ukucindezeleka kokushisela futhi kugweme ukuqhekeka.
Ukukhethwa Kwepharamitha: Ngocingo olujwayelekile olune-flux-core oluyi-1.2mm ~ 2.4mm ububanzi, umsinga wokushisela ngokuvamile u-250 ~ 600A, i-voltage yokushisela ingu-28 ~ 38V, kanti isivinini sokushisela singu-300 ~ 600mm/min. Uma ububanzi bocingo bukhulu, kulapho umsinga ohambisanayo uphakama khona. Ukunciphisa umsinga wokushisela ngokufanele nokwandisa isivinini sokushisela kunganciphisa izinga lokuxuba le-substrate.
Umklamo Wezingqimba Zokumboza: Ubukhulu besendlalelo esingagugi ngokuvamile buklanywe njengo-3 ~ 12mm. Kokumboza okunezingqimba eziningi, izinga lokushisa lesendlalelo esiphakathi kufanele lilawulwe lingadluli ku-300℃ ukuze kugwenywe ukukhula okukhulu kakhulu kokusanhlamvu okuphazamisa ukusebenza. Kumapuleti okuguga adinga ukugoba nokucubungula ngemuva, ukumboza kufanele kwenziwe ku-substrate ngemuva kokugoba ngaphambi kwesikhathi ukuze kugwenywe ukuqhekeka okubangelwa ukugoba ngemva kwesikhathi.
Ukwelashwa Ngemva Kokushisela: Ngemva kokushisela, kufanele ipholiswe kancane kancane, ikakhulukazi ngezintambo ezine-alloy ephezulu, ukuze kugwenywe ukuqhekeka okubangelwa ukupholisa okusheshayo. Ezingxenyeni ezidinga ukukhululeka ekucindezelekeni, ukushisela kokukhululeka ekucindezelekeni kungenziwa ku-200 ~ 300℃ ngemva kokushisela ukuze kuqedwe ukucindezeleka okusele kokushisela.
Ithrendi Yentuthuko Yemboni
Eminyakeni yamuva nje, ucingo olune-SAW flux-core lwe-wear plate hardfacing luneziqondiso ezilandelayo zokuthuthukiswa:
Okokuqala,umklamo we-alloy osebenza kahle kakhulu, izinhlelo zokusebenza eziningi zidinga ukumelana nokuguguleka okuphezulu kanye nokuphila isikhathi eside kwenkonzo, ngakho-ke ukuthuthukiswa kwezintambo eziqinisiwe ezihlanganisiwe njenge-WC kanye ne-TiC kuyashesha, futhi isilinganiso sezintambo ezine-alloy ephezulu emakethe siyanda unyaka nonyaka.
Okwesibili,ukuthuthukiswa kokuqina okungenamifantu, izinhlelo zokusebenza eziningi zobunjiniyela zidinga ukuthi ubuso bepuleti lokuguguleka bungavumeli imifantu, okukhuthaza ukuthuthukiswa kwezakhi ezimelana nemifantu ephansi yekhabhoni, ezilinganisela ubulukhuni nokuqina ngokwenza ngcono isilinganiso se-alloy kanye nokulawulwa kwesakhiwo esincane.
Okwesithathu,ukukhiqizwa okungenangozi kwezemvelo, isizukulwane esisha sentambo ene-flux-core sinciphisa okuqukethwe kwezinto eziyingozi njenge-cobalt kanye nezinto ezinemisebe, kanti i-arc flux ehlanganisiwe nayo ithuthukela ekungcoleni okuphansi kanye nezinkomba ezingaphinde zisetshenziswe, ezihlangabezana nezidingo zokukhiqiza okuluhlaza.
Okwesine,ukuthuthukiswa okwenziwe ngokwezifiso, ngezimo ezahlukene zokuguguleka kwezimboni ezahlukene, abakhiqizi bethule imikhiqizo ehlukanisiwe ehlukaniswe kakhulu, engafinyelela ukuhambisana kokusebenza okunembe kakhudlwana, igweme ukuchitha ukusebenza noma impilo enganele ebangelwa ukusetshenziswa kwemikhiqizo ejwayelekile.
Isingeniso Senkampani
I-Tangshan Runxing Machinery Co., Ltd., umkhiqizi ochwepheshe oseTangshan, eSifundazweni saseHebei ogxile ku-R&D, ekukhiqizweni kanye nasenkonzweni yokwakha endaweni yemikhiqizo yensimbi eqinile engagugi, yasungulwa ngo-2010.
Imikhiqizo yethu eyinhloko ifaka amapuleti okugqokwa e-chromium carbide overlay (CCO), ama-wear liners acutshungulwe ngokwezifiso, amapayipi angagugi kanye nokufakwa kwamapayipi, izintambo zokushisela ezine-hardfacing flux-core, imishini yokushisela ezenzakalelayo, kanye nensizakalo yobuchwepheshe yokulungisa i-roller surfacing. Silandela umqondo webhizinisi othi “Ubuqotho, Ikhwalithi Ephakeme, Ukusungula Izinto Ezintsha kanye Nentuthuko Eqhubekayo” kanye nobuchwepheshe bethu obuvuthiwe obuthuthukisiwe be-hardfacing surface yensimbi.
Sihlinzeka ngezixazululo ezilungiselelwe ngokwezifiso ezingagugi zezimboni zesimende, insimbi, izimayini, amachweba kanye nokugaya izinsimbi emhlabeni wonke, futhi sithole idumela elihle emakethe eRussia nase-Asia Ephakathi.
Lonke ibhizinisi lokuthumela ngaphandle ligunyaziwe futhi liphathwa yiHebei Yuwan International Trade Co., Ltd. Le nkampani yokuhweba iqeda yonke imisebenzi yokuthumela ngaphandle okuhlanganisa ukusulwa kwempahla, ukuthunyelwa, amadokhumenti kanye nokuqoqwa kwezinkokhelo. Ifektri yethu igxile ekuthuthukisweni nasekukhiqizweni komkhiqizo ukuqinisekisa ikhwalithi yomkhiqizo ezinzile kanye nokulethwa ngesikhathi.
I-Runxing Machinery inethemba elikhulu lokusungula ukubambisana kwesikhathi eside futhi izuze nawe!
Umbukiso
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