Ngokuthuthuka okusheshayo kwemboni yensimbi, ukuze kuthuthukiswe ukukhiqizwa kwensimbi futhi kuthuthukiswe izinga lokusebenzisa kanye nokukhiqiza kwesigayo esigaywayo, ukunciphisa izikhathi zokuvala umshini wokugaya, ukwamukela i-tungsten carbide roller enempilo ende yesevisi kubalulekile. indlela.

Iyini i-Tungsten Carbide Roller

I-carbide roller enosimende, eyaziwa nangokuthi iringi ye-carbide roller, isho umqulu owenziwe nge-tungsten carbide ne-cobalt ngendlela ye-powder metallurgical. I-tungsten carbide roll inezinhlobo ezimbili zokuhlanganisa futhi ihlanganisiwe. Inokusebenza okuphezulu, ikhwalithi ezinzile, ukunemba okuphezulu kokucubungula nokumelana okuhle kakhulu kokugqoka kanye nokumelana nomthelela omkhulu. I-Carbide roller isetshenziswa kakhulu ukugingqa induku, intambo yocingo, insimbi ecushiwe kanye nepayipi lensimbi elingenamthungo, okuthuthukisa kakhulu ukusebenza kahle kwesigayo.

Ukusebenza okuphezulu kwe-Tungsten Carbide Roller

I-carbide roll inobunzima obuphezulu futhi ukubaluleka kwayo kokuqina kuyahlukahluka kuncane kakhulu ngezinga lokushisa. Inani lokuqina elingaphansi kuka-700 ° C liphakeme izikhathi ezingu-4 kunensimbi enesivinini esikhulu. I-elastic modulus, amandla acindezelayo, amandla okugoba, i-thermal conductivity nayo iphakeme ngokuphindwe ka-1 kunensimbi yamathuluzi. Njengoba i-thermal conductivity ye-cemented carbide roll iphezulu, umphumela wokushisa ukushisa muhle, ukuze ubuso bomqulu bube ngaphansi kwezinga lokushisa eliphezulu isikhathi esifushane futhi ngaleyo ndlela isikhathi sokuphendula ukushisa okuphezulu kokungcola okuyingozi emanzini okupholisa futhi umqulu mfishane. Ngakho-ke, ama-tungsten carbide rollers amelana kakhulu nokugqwala nokukhathala okubandayo nokushisayo kunamarola ensimbi amathuluzi.

Ukusebenza kwe-tungsten carbide rollers kuhlobene nokuqukethwe kwesigaba sensimbi yebhondi kanye nobukhulu bezinhlayiya ze-tungsten carbide. I-tungsten carbide icishe ibe ngu-70% kuya ku-90% wengqikithi yokwakheka kanye nosayizi wezinhlayiyana ezimaphakathi ngu-μm ka-0.2 kuya ku-14. Uma okuqukethwe kwebhondi yensimbi kukhushulwa noma kukhulisa usayizi wezinhlayiyana ze-tungsten carbide, ubulukhuni be-carbide kasimende buyancipha futhi ukuqina kuyathuthukiswa. Amandla okugoba e-tungsten carbide roller ring angafinyelela ku-2200 MPa. Ukuqina komthelela kungafinyelelwa (4 ~ 6) × 106 J / ㎡, futhi i-HRA ingu-78 kuya ku-90.

I-tungsten carbide roller ingahlukaniswa ngezinhlobo ezimbili zokuhlanganisa kanye nenhlanganisela ngokusho kwesakhiwo sesakhiwo. I-integral tungsten carbide roller isetshenziswe kabanzi ekugoqeni okunembayo kanye nokuqedela ukuma kwezigayo zokugingqa izintambo ezinesivinini esikhulu. I-roller ye-carbide eyinhlanganisela ehlanganisiwe ihlanganiswa nge-tungsten carbide nezinye izinto. I-carbide rollers ehlanganisiwe iphonswa ngqo ku-roller shaft, esetshenziselwa umshini wokugoqa ngomthwalo osindayo.

Indlela Yokwenza I-Tungsten Carbide Roller Nemithetho Yokukhetha Yamathuluzi Ayo Okusika

Nakuba impahla ye-tungsten carbide ingcono kunezinye izinto, kunzima ukwenza imishini ngenxa yobunzima obukhulu futhi isetshenziswa kabanzi embonini yensimbi.

1.Mayelana nobulukhuni

Lapho wenza ama-tungsten carbide rolls anobulukhuni obuncane kune-HRA90, khetha impahla ye-HLCBN noma ithuluzi le-BNK30 lempahla ngenani elikhulu lokuphenduka futhi ithuluzi aliphukile. Lapho kwenziwa i-carbide roller ngobulukhuni obungaphezu kwe-HRA90, ithuluzi ledayimane le-CDW025 ngokuvamile liyakhethwa noma ligaywe ngesondo lokugaya idayimane le-resin. Ngokuvamile, ukuphakama kobulukhuni bunjalo, i-material iba crisper, ngakho-ke iqaphela kakhulu ukusikwa kwezinto ezinobunzima obuphezulu kanye nesabelo sokugaya esigciniwe esibekiwe.

2.Imvume yomshini nezindlela zokucubungula

If indawo yangaphandle yenziwe ngomshini futhi imvume inkulu, ngokuvamile ithatha impahla ye-HLCBN noma impahla ye-BNK30 ukuze icutshungulwe cishe, bese igaywa ngesondo lokugaya. Ukuze uthole isibonelelo esincane somshini, i-roller ingagaywa ngokuqondile ngesondo lokugaya noma iphrofayili ecutshungulwa ngamathuluzi edayimane. Ngokuvamile, ukusika okunye ukugaya kungathuthukisa ukusebenza kahle kwemishini futhi indlela yokusika isiza kakhulu ekuthuthukiseni isikhathi sokuhola sokukhiqiza.

3.Passivating treatment

Lapho kwenziwa i-tungsten carbide roller, ukwelashwa okudlulayo kuyadingeka ukuze kuncishiswe noma kuqedwe inani lobukhali, ngenhloso yokuba flat kanye nokushelela ngokuqina okuphezulu. Kodwa-ke, ukwelashwa kwe-passivation akufanele kube kukhulu kakhulu, ngoba indawo yokuxhumana ye-blade yamathuluzi inkulu ngemva kokudlula futhi ukumelana nokusika kuyanda, okulula ukubangela ukuqhekeka, ukulimaza umsebenzi womsebenzi.

Yini Okufanele Inakwe Ngokukhiqizwa Nokusetshenziswa Kwe-Tungsten Carbide Roller

Eminyakeni yamuva, ama-tungsten carbide rollers athole ukusetshenziswa okubanzi ngokwengeziwe ekukhiqizeni insimbi ngokusebenza kwawo okuhle kakhulu. Kodwa-ke, kusenezinkinga ezithile ekukhiqizeni nasekusetshenzisweni kwama-carbide rolls.

1. Yakha uhlobo olusha lwe-roller shaft material. Izinsimbi ezivamile ze-ductile iron roller shafts kuzoba nzima ukumelana namandla amakhulu okugoqa futhi zilethe i-torque enkulu. Ngakho-ke, izinto ezisetshenziswayo ze-carbide composite roll shaft ezisebenza kahle kakhulu kufanele zenziwe.

2. Ngesikhathi senqubo yokukhiqiza ama-carbide rollers, ukucindezeleka okushisayo okusele okubangelwa ukwanda kokushisa phakathi kwensimbi yangaphakathi kanye ne-carbide yangaphandle enosimende kumele kuncishiswe noma kuqedwe. I-carbide residual ye-thermal stress iyisici esibalulekile esithinta impilo ye-roller. Ngakho-ke, i-coefficient yomehluko wokwandisa okushisayo phakathi kwensimbi ekhethiwe yangaphakathi kanye ne-carbide yangaphandle enosimende kufanele ibe mncane ngangokunokwenzeka, kuyilapho icubungula ukuqeda ukucindezeleka okushisayo okusele kwendandatho ye-carbide roller ngokusebenzisa ukwelashwa kokushisa.

3. Ngenxa yomehluko wamandla aginqikayo, i-torque egingqikayo, ukusebenza kokudlulisa ukushisa kuma-rack ahlukene, ama-rack ahlukene kufanele athathe amamaki ahlukene ama-tungsten carbide roller ukuze kuqinisekiswe ukufana okunengqondo kwamandla, ubulukhuni, nokuqina komthelela.

Isifinyezo

Ukuze rolling of wire, induku, tungsten carbide roller esikhundleni ezivamile cast iron rolls kanye ingxubevange yensimbi rolls, ubonise eziningi ukuphakama, kanye nokuthuthukiswa okuqhubekayo amasu okukhiqiza roller kanye nokusebenzisa ubuchwepheshe, uzoqhubeka nokwandisa izicelo carbide roller izindandatho. futhi zizoba zibaluleke kakhulu ekukhiqizeni imishini enezinhlelo zokusebenza ezibanzi.