Ziziphi izinto kunye neemfuno zonyango lobushushu kwiSingle Stand Multi-Groove Reducing Rolling Mill

       Imiqulu yeI-I-Single Stand Multi-Groove Reducing Rolling Millziphantsi kwemithwalo ejikelezayo kunye nokunxitywa okungalinganiyo kwiindawo ezininzi zokudlula. Eli nqaku liquka izinto ezisetyenziswa ngokuqhelekileyo roll, izalathisi yokusebenza, iinkcukacha unyango ubushushu, kunye nengqwalasela ebalulekileyo unyango ubushushu imiqulu multi-pass.

       Indawo enye-indawo enye yokunciphisa iisayingi yokunciphisa ilitye isebenza njengesixhobo esingundoqo sokwenza ityhubhu. Ngexesha lokusebenza, imiqulu yayo isoloko ibonakaliswe kuxinzelelo oluqengqelekayo, imithwalo yempembelelo etshintshanayo, ukukhuhlana kobushushu obuphezulu, kunye noxinzelelo lwe-thermal cyclic. Xa kuthelekiswa nemiqulu eqhelekileyo yokupasa enye, ibhodi eqengqelekayo ye-multi-pass rolls iqulethe iipasile ezininzi. Ukwabiwa komthwalo ongalinganiyo phakathi kweepaseji kubangela ukuguga kwasekhaya, ukuqhekeka, ukuqhekeka kunye nokuqhekeka. Ke ngoko, ukhetho lwezinto eziphathekayo kunye nenkqubo yonyango lobushushu lumisela ngokuthe ngqo ubomi benkonzo ye-roll, ukuchaneka kwe-tube dimensional kunye nokusebenza komgca wemveliso ozinzileyo.

1. IiMeko zokuSebenza ezichaphazela uKhetho lweMathiriyeli kwiiRolo zeMulti-Pass zeSingle-Standi sokuNciphisa iSizingi

       1. Iipasile ezininzi ze-grooved zenziwe ngomatshini kwi-barrel enye. Uxinzelelo loxinzelelo lubalasele kwimimandla yendawo ngenxa yomthwalo ongahambelaniyo kwipasi ngalinye.

       2. Ukunxiba okungapheliyo kwenzeka ngexesha lokuqengqeleka. Amazinga okunxiba ahluka kakhulu phakathi komzantsi wokupasa kunye namagxa okupasa, okukhokelela ekungaphumelelini kwangaphambi kwexesha lokupasa komntu ngamnye.

       3. Ukutshintshana kweemeko ezishushu nezibandayo zenza ukudinwa kwe-thermal phantsi kweemeko zokunciphisa ezishushu, ezidla ngokuvelisa iintanda zenethiwekhi kwiindawo eziqengqelekayo.

       4. Iimpembelelo zokuluma ngamaxesha athile zifuna i-matrix eqengqelekayo ukuba ibenobulukhuni obuphezulu kunye nokumelana nokuspaliswa kunerolo eziqhelekileyo.

       Ukunikezelwa kwezi meko zokusebenza zingentla, ii-multi-pass reduction rolls azikwazi ukuxhomekeka kuphela kubulukhuni obuphezulu. Indibaniselwano elungeleleneyo yokumelana nokunxiba komphezulu, amandla e-matrix, ukumelana nokudinwa kwe-thermal kunye nokuqina kwempembelelo kunyanzelekile.

2. UKhetho lweMathiriyeli eqhelekileyo kwiMiqulu

       Intsimbi yokuphoswa kwechromium yeyona nto yamkelwe ngokubanzi kwimiqulu ye-single-stand multi-pass hot ityhubhu sizeng mill.

       Izinto eziluncedo: I-carbides enobulukhuni obuphezulu ihambisa ukuxhathisa okugqwesileyo kunye nokusebenza kwe-thermal yokunxiba, ezifanelekileyo kwiinkqubo zokunciphisa ubushushu obuphezulu.

       Unyino: Ukuqina okuphantsi ngokwentelekiso; ukuchaphazeka kwiindawo zokudlula kunokwenzeka phantsi kwemithwalo enzima yempembelelo.

       Isicelo: Ukunciphisa okushushu, umthwalo ophakathi kunye nobuninzi obuqhubekayo betyhubhu.

2.2 Imiqulu ye-ayini ye-alloy Ductile

       Izinto eziluncedo: Ulungelelwaniso olubanzi lweepropathi zoomatshini, ukumelana nempembelelo engcono kunye nokumelana nokuqhekeka kwe-thermal kune-high-chromium cast iron, machinability elungileyo.

       Unyino: Ukuxhathisa okungaphantsi kancinci komphezulu xa kuthelekiswa nentsimbi ephezulu yechromium.

       Isicelo: Iimeko eziqengqelekayo ezinempembelelo enzima kunye neemfuno ezingqongqo zokuchasa ukuqhekeka kwiiyunithi zokunciphisa iipasiti ezininzi.

2.3 IiRolo zeNtsimbi eQithiweyo (UkuNcitshiswa kweCold/Usetyenziso oluchanekileyo)

       Amabanga aqhelekileyo: CrMo, CrNiMo series alloy forged steel.

       Izinto eziluncedo: Imatrix exineneyo, ukuqina okuphezulu, ukuxhathisa okunamandla kunye nokuqina okuhle kunye nesibonelelo esaneleyo sokubuyisela.

       Unyino: Ukumelana nokunxiba okuphantsi kumanqanaba entsimbi kunye neendleko eziphezulu zemveliso.

       Isicelo: Ukunciphisa ubukhulu betyhubhu ebandayo, ukuveliswa kwetyhubhu enodonga oluchanekileyo oluchanekileyo oluchanekileyo kunye neemeko zokusebenza ezinzima ezinempembelelo enzima.

2.4 IiRolo zentsimbi ezikwisantya esiphezulu (usetyenziso olukwinqanaba eliphezulu)

       Imiqulu yentsimbi enesantya esiphezulu ibonakalisa ukumelana nokunxiba okugqwesileyo kunye nokuqina okubomvu kunye nokumelana nokudinwa okuphezulu kwe-thermal. Nangona kunjalo, beza neendleko eziphezulu zempahla kunye neemfuno zolawulo olungqongqo kwiinkqubo zonyango lobushushu. Ziye zifakwe kwi-high-speed, i-high-demand ityhubhu yokunciphisa imigca yokuvelisa.

       UmGaqo wokuKhetha: Vavanya umthwalo omkhulu wokuqengqeleka, ubushushu obuqengqelekayo kunye nobunzulu bokupasa xa ukhetha imiqulu yokupasa emininzi. Izalathi zokuqina ziya kuphuculwa ngokufanelekileyo kumagxa okupasa apho uxinizelelo lugxile khona ukuthintela ukuqhekeka kwiikona zokupasa.

3. IiMfuno zobuChwephesha boNyango loBushushu kwiiRolo eziBalulekileyo

       Injongo yonyango lobushushu bomqulu kukuphumeza umaleko wokusebenza ongagugiyo kunye nobunzima obuphezulu kunye ne-matrix enzima. Umaleko womphezulu uqinisekisa ukunxitywa kweepasi ezigrunjiweyo ngelixa i-matrix ithintela ukwaphuka komqulu.

3.1 Inkqubo yoNyango loBubushushu kwi-High-Chromium Cast ye-Iron Rolls

       Indlela yenkqubo: Ukusasaza → Ukufakela isiqabu soxinzelelo → Ukucoca okurhabaxa → Ukucinywa

       I-Anealing: Ukuphelisa ukuphosa uxinzelelo olushiyekileyo kunye nokuphucula ukusika ukutshiza.

       Ukucima: Ukucima umoya okanye ukudubula komoya ukunyusa ukuqina komphezulu.

       I-Tempering: Ubushushu obuphantsi bokushisa ukususa uxinzelelo lokucima, ukuzinzisa i-microstructure kunye nokunciphisa umngcipheko wokuqhekeka.

       Ukucaciswa kobunzima: Ukuqina komphezulu we-Roll HSD 80 ~ 92 ngelixa ugcina ukuqina okuphezulu kwe-roll core.

3.2 UNyango loBubushushu kwi-Alloy Ductile Iron Rolls

       Indlela yenkqubo: Isakhelo → Ukuqhotyoshela → Ukucoca ngokurhabaxa → Ukucinywa + Ukufudumeza

       Ulawulo oluphambili: Ukuzinzisa iqhezu le-pearlite kwi-matrix ukuphucula ukuxhathisa ukukhathala kwe-thermal.

       Uluhlu lobunzima: HSD 75 ~ 88. Xa kuthelekiswa nentsimbi ephoswe ngechromium ephezulu, ibonelela ngokuqina komda omkhulu ukulungiselela ukutshintshwa kwemithwalo yempembelelo yokuqengqeleka kweepasi ezininzi.

3.3 UNyango loBubushushu kwi-Alloy Forged Steel Rolls

       Indlela yenkqubo: Ukwenziwa → Emva kokufota ukuFaka iSihlomelo → Ukucoca ngokurhabaxa → Ukucinywa kunye nokuthoba

       Ukucima kunye nokuthoba: Qinisekisa ukomelela okuphezulu kunye nokuqina okuphezulu kwe-matrix eqengqelekayo.

       Ukuqiniswa komphezulu we-Induction: Yandisa kuphela ubulukhuni bomphezulu wokusebenza ogrunjiweyo ngelixa ugcina ukuqina kumbindi ukunqanda ukuqina ngokupheleleyo.

       Ukuqina: Umphezulu osebenzayo HRC 48~58.

3.4 Unyango loBushushu kwiiRolo zentsimbi ezikwisantya esiphezulu

       Inkqubo: Ukucima ubushushu obuphezulu + ubushushu obuphindaphindeneyo ukuze bugqithise ngokupheleleyo ialloy carbides.

       Iimpawu: Ubulukhuni bubola ngokucothayo kumaqondo obushushu aphezulu (ubulukhuni obuhle obubomvu). Ulawulo olungqongqo lwe-deformation yonyango lokushisa luyafuneka. Ulawulo lokuchaneka komgangatho wegrooves eneendlela ezininzi kulucelomngeni.

4. Iingqwalasela eziKhethekileyo zoNyango loBushushu kwiiRolo zeSingle-Stand Multi-Pass

1. Ulawulo loXiniso loXhazelelo lweJiyometri yeePasi ezininzi

       Amagxa okudlula kunye neekona zokudlula ziindawo ezigxininiswe kuxinzelelo. Ngexesha lonyango lobushushu, amazinga okufudumeza kunye nokupholisa kufuneka alawulwe ukuthintela ukucima iintanda kwiikona zokudlula. Ukufudumala ngokupheleleyo emva kokucima kunciphisa uxinzelelo olushiyekileyo. Lo ngowona mahluko ubalulekileyo phakathi kwemiqulu yokupasa eninzi kunye nemiqulu yokupasa enye.

2. Ukuqina Ukulawula Ukufana

       Iipasile ezininzi ezigudileyo zenziwe ngoomatshini kumqulu omnye. Ukutenxa kobulukhuni bemigangatho yokusebenza kuzo zonke iipasi emva konyango lobushushu kufuneka kugcinwe kwimida eyamkelekileyo. Ubulukhuni obungafaniyo bukhokelela ekunxityweni okungahambelaniyo kweepasi ezahlukeneyo kunye nokuguquguquka kwetyhubhu yangaphandle yokunyamezela ukunyamezela.

3. Ulawulo loTshintsho loNyango loBushushu

       Imiqulu emininzi yokupasa ifaka umphanda omde kunye nemijelo emininzi. Ukuguqulwa konyango lobushushu kuchaphazela ngokuthe ngqo ukugxila kokudlula. Ukuphuculwa kokulungiswa konyango lobushushu kunye nendlela yokupholisa iyafuneka. Ukuguqulwa okugqithisileyo kwandisa umthwalo wokubuyisela kwakhona umsebenzi olandelayo.

4. Uhlolo lweNxibelelo olushiyekileyo

       Uxinzelelo olushiyekileyo luya kuhlolwa emva konyango lobushushu. Uxinzelelo oluphezulu olushiyekileyo lunokuqalisa iintanda zokudinwa eziqala kwiikona zokudlula phantsi kwemithwalo eqengqelekayo etshintshiweyo kwaye ibangele ukusilela kwangaphambi kwexesha.

5. Unxulumano phakathi kwezinto eziphathekayo, ukuNyangwa kobushushu kunye neendlela zokungaphumeleli

       Ukunxiba okukhawulezileyo komphezulu: Ukungonelanga kokuqina komphezulu okanye umxholo ophantsi we-carbide wemathiriyeli yokuqengqeleka.

       Ukuqhekeka kunye nokuthanda kwiikona zokudlula: Uxinzelelo olugqithileyo olushiyekileyo emva konyango lobushushu, ukuqina okungonelanga kunye nomonakalo wokudinwa okushushu.

       Ukuqhekeka kunye nokuqhekeka komphezulu wokudlula: Umaleko oqinileyo womphezulu oqinileyo kunye nobunzima obunganelanga bematriksi okanye inkqubo engafanelekanga yokucima.

       Umahluko obalulekileyo wokunxiba phakathi kweepaseji: Ubunzima obungalinganiyo emva konyango lobushushu zidityaniswe nokuhanjiswa komthwalo oqengqelekayo okungenangqiqo.

6. Isiphelo

       Izixhobo kunye neenkqubo zonyango lobushushu kwimiqulu ye-single-stand multi-pass sizeng sizeng mill ayinakwamkelwa ngokuthe ngqo kwimigangatho ye-single-pass rolls. Ukugxininiswa koxinzelelo kunye nomthwalo ongalinganiyo oveliswe yi-multi-pass grooved geometry ifuna ukulingana phakathi kokumelana nokunxiba kunye nokuqina ekukhethweni kwezinto eziphathekayo. Unyango lobushushu kufuneka lugxininise kuxinzelelo olushiyekileyo kwimimandla enemingxuma, ubunzima obufanayo kunye nokuguqulwa konyango lobushushu. Ukuhambelana ngokufanelekileyo kwezinto kunye neenkqubo zonyango lobushushu kwandisa umjikelo wenkonzo ye-roll, kuzinzisa i-tube ububanzi obungaphandle, i-ovality kunye nezinye izalathisi ezigqityiweyo, kunye nokunciphisa ixesha lokuphumla kunye neendleko zokutshintshwa.