I-ring die yeyona nto iphambili kwi-pellet mill. Ukwakheka kwayo kunye nomgangatho wokwenziwa kwayo kumisela ngokuthe ngqo umgangatho we-pellet, amandla okuvelisa, ukusetyenziswa kwamandla, kunye nemilinganiselo ebalulekileyo yexabiso ngetoni nganye. Xa i-ring die iguga ngaphambi kwexesha, ivala rhoqo, okanye ivelisa ii-pellets ezingazinzanga, unobangela oyintloko uhlala ubuyela emva ekukhetheni izinto okanye iindlela ezimfutshane zokuvelisa. Eli nqaku lihlola iintsapho ezimbini eziphambili ze-ring die material martensitic stainless steel (X46Cr13/4Cr13) kunye ne-alloy steel (20CrMnTi) kunye neenkqubo zokuvelisa eziguqulela iipropati zezinto zibe kukusebenza kokusebenza.
Kutheni Izinto Ezisetyenziswa KwiRing Die Zibalulekile?
Ngexesha lokuveliswa kwepellet, i-ring die isebenza phantsi koxinzelelo oluphezulu ngaxeshanye, ukungqubana okuphezulu, kunye noxinzelelo loomatshini olujikelezayo. I-feed mash inyanzeliswa kwimingxunya ye-die yi-press rollers ngelixa umphunga, umswakama, iiminerali, kunye nezithako ezirhabaxa zihlala zisebenza kumphezulu wokusebenza kunye neendonga zemingxunya. Ukukhetha izinto ezingalunganga kunokungena kwiingxaki ezininzi: ukuguguleka kwemingxunya ngokukhawuleza, ukuncipha kozinzo lokucinezelwa, ubunzima be-pellet obuncitshisiweyo, ukuvaleka rhoqo kwe-die, amanqaku angaphakathi, kunye nomngcipheko ophezulu wokuqhekeka [1].
Ingozi yezoqoqosho ibalulekile. Idayi exabiso liphantsi efuna ukutshintshwa rhoqo, ibangela ukungasebenzi ixesha elide, okanye yonakalise umgangatho we-pellet ibiza kakhulu kwixabiso elipheleleyo lokuba ngumnini kunedayi ekumgangatho ophezulu enobomi obude benkonzo.
Iintsapho zezinto eziphathekayo: Isishwankathelo esithelekisayo
Ishishini le-ring die lisebenzisa ikakhulu iindidi ezimbini zezinto eziphathekayo, apho ukhetho luqhutywa yindlela yokutya, iimeko zokusebenza, kunye nomngcipheko wokugqwala.
Udidi lokuqala yiMartensitic Stainless Steel, enemigangatho eqhelekileyo equka iX46Cr13 kunye ne4Cr13, efikelela kubunzima be-HRC 52 60. Amandla aphambili aquka ubulukhuni obuphezulu, ukumelana nokugqwala, kunye nobomi benkonzo ende. Umda ophambili kukunyuka kwexabiso leyunithi. Izicelo eziqhelekileyo ziquka iinkukhu, ukutya kwasemanzini, kunye neefomyula ezigugileyo.
Udidi lwesibini yi-Alloy Steel, enemigangatho eqhelekileyo equka i-20CrMnTi, i-40Cr, kunye ne-42CrMo, efikelela kubunzima be-HRC 55 60. Amandla aphambili aquka ukuqina okuhle, amaxabiso aphantsi, kunye namandla abalaseleyo oomatshini. Umda ophambili kukumelana nokugqwala okuphantsi. Izicelo eziqhelekileyo ziquka iinkukhu, imfuyo, kunye ne-biomass eqhelekileyo. Imithombo: [1], [2].
I-X46Cr13 / 4Cr13: Umgangatho woShishino lweeDies zeRingi zePremium
I-X46Cr13 (DIN 1.4034, igama lesiTshayina elithi 4Cr13) yintsimbi engagqwali eyenziwe nge-martensitic kwaye yeyona nto isetyenziswa kakhulu kwiringi yobungcali iyafa. Ulawulo lwayo alukho ngengozi kodwa luvela kwibhalansi elungileyo yeempawu.
Ukuqina. Emva konyango lobushushu be-vacuum, i-X46Cr13 ifikelela kwi-HRC 52 60 kumphezulu wokusebenza ngelixa igcina ukuqina okwaneleyo kwe-core. Umzekelo, iinkcukacha zokwenziwa kweShanbao zijolise kwi-HRC 52 55, ngelixa i-premium ye-Hongyang ifikelela kwi-HRC 58 60 ngokuqinisa i-vacuum [2], [3].
Ukumelana Nokugqwala. Umxholo we-chromium (malunga ne-13%) ubonelela ngokumelana okungcono kakhulu nokufuma, umphunga, kunye nezithako zokutya ezingcolisayo kancinci kuneentsimbi ze-alloy. Kwiifomyula zokutya zasemanzini ezinomthamo ophezulu wokufuma, okanye kwiifektri ezisebenza kwiindawo ezifumileyo, olu kumelana nokugqwala lwandisa ngokuthe ngqo ubomi bokufa [1].
Ukumelana nokuguguleka. Ukudibanisa umxholo ophezulu wekhabhoni kunye neekhabhoyidi ze-chromium ezenziwe ngexesha lonyango lobushushu kuvelisa umphezulu onganyangekiyo ogcina i-geometry yemingxuma ngexesha lokuveliswa okude. Kuvavanyo oluthelekisayo, ii-X46Cr13 ring dies zihlala ziphumelela ngakumbi kwii-alloy steel dies kwizicelo zokutya kwenkukhu ezigugulekileyo kunye ne-aqua [1].
Umthetho Wokukhetha Osebenzayo. Kwiindawo zokutyela apho indlela yokusilela ephambili kukuguguleka kwemingxunya, ukuwohloka komphezulu wangaphakathi, okanye ukulahleka komthamo endaweni yokubola kweekhemikhali i-X46Cr13 imele ukhetho oluqinileyo lwezinto ezijikeleze yonke indawo. Isifundo setyala saseHongyang Kazakhstan sibhale ubomi benkonzo ye-ring die yeeyure ezingama-880 (ukusuka kwiiyure ezingama-600 kumatshini otshintshiweyo) kunye nee-die ezilingana ne-X46Cr13, ezimele ukuphucuka kwe-46.7% [3].
Intsimbi ye-alloy ye-20CrMnTi: Ihashe Elisebenzayo Elinoqoqosho.
I-20CrMnTi yintsimbi ye-carburizing alloy esetyenziswa kakhulu kwii-ring dies kwiinkukhu eziqhelekileyo, kwimfuyo, nakwezinye iindawo apho umngcipheko wokugqwala uphantsi kwaye umlinganiselo weendleko zokusebenza yeyona nto iphambili ekufuneka iqwalaselwe.
Ukuqina. I-20CrMnTi inika ukuqina okugqwesileyo, okuxabisekileyo xa i-pellet mill isebenza phantsi komthwalo oguquguqukayo, xa iifomyula zokutya ziqulethe amasuntswana arhabaxa, okanye xa ukulungiswa kwe-roller kungenakusoloko kugcinwa ngokuchanekileyo [1].
Ukuqina. Emva kokuyitshisa nokuyicima, i-20CrMnTi ifikelela kwi-HRC 55 60 kumphezulu ngesiseko esiqinileyo. Olu xube lumelana nokuguguleka komphezulu ngelixa lufunxa imithwalo yempembelelo enokuqhekeza izinto ezibuthathaka ngakumbi [2].
Idatha yoBomi beNkonzo. Entsimini, ii-20CrMnTi ring dies zifikelela kwiiyure ezingama-2,000 ukuya kwezingama-3,000 kukutya okuqhelekileyo kweenkukhu okusekwe kwingqolowa kunye neeyure ezili-1,200 ukuya kwezingama-1,800 kwimveliso yepellet yokhuni oluqinileyo olunoburhabaxa obuphakathi. Kwizinto ezirhabaxa kakhulu ezifana nerayisi husk (ubulukhuni beMohs 7 ngenxa yomxholo we-silica), ubomi benkonzo bunokwehla bufikelele kwiiyure ezingama-800 ukuya kwezingama-1,500 [4].
Imida. Ubuthathaka obuphambili kukumelana nokugqwala. Kwiifomyula ezinomswakama ophezulu, ityuwa, okanye izinto ezine-asidi, i-20CrMnTi isengozini yokugqwala kunye nokuhlaselwa ziikhemikhali ezirhabaxa imiphezulu yemingxuma, zinyusa ukungqubana, zinciphise ukuphuma, kwaye zinciphise ubomi benkonzo esebenzayo nokuba zisebenza njani na iimoto [1].
Izixhobo AZIFANELEKANGA KWIIDIE ZERINGCINEZELO ZOKWENZIWA KWENGXENYE YEZINTO EZIPHAMBILILEYO
Kubalulekile ukucacisa ingcamango ephosakeleyo eqhelekileyo. Nangona ezinye iipellet mill zikhokela iintsimbi ezineentsimbi (ezifana ne-GCr15 / 52100) njengezixhobo ze-ring die, ezi zilungele kakhulu ii-flat dies kwimisebenzi ye-biomass encinci. I-GCr15 ineempawu ezahlukeneyo zokwandiswa kobushushu kwaye ayinayo ukumelana nokugqwala kunye nokuqina kwempembelelo okufunekayo kwii-ring dies zobungcali ezisebenza phantsi kweemeko zoshishino ezizinzileyo. Ii-pellet mills zobungcali kufuneka zisebenzise i-X46Cr13/4Cr13 martensitic stainless steel okanye i-20CrMnTi alloy steel kwii-ring dies [1].
Inkqubo Yokuvelisa: Apho Izinto Zidibana Nokuchaneka
Ukukhethwa kwezinto kuyimfuneko kodwa akwanelanga. Inkqubo yokuvelisa imisela ukuba iimpawu zethiyori zezinto ziguqulela ekusebenzeni.
Ukufakelwa. Ukwenziwa kweedayi zeringi ezisemgangathweni kuqala ngedayi eluhlaza. Abavelisi beprimiyamu basebenzisa iidayi ezenziwe ngokwezifiso ezine-chromium ephezulu kunye nobunzima obulawulwayo obungenanto (HB 180 220). Ukufakelwa ngokufanelekileyo kuphucula isakhiwo sengqolowa, kususa ii-voids zangaphakathi, kwaye kunokwandisa ubomi bokufa obupheleleyo malunga ne-15% xa kuthelekiswa nezinye iindlela ezingezizo ezifakelweyo [5].
Ukubhola ngezibhamu. Imingxuma yedayi iveliswa kusetyenziswa oomatshini bokubhola ngezibhamu be-CNC abasebenza ngesantya esifikelela kwi-15,000 RPM. Ukuguda kwemingxuma yiparameter ebalulekileyo yomgangatho: imingxuma eqinileyo yonyusa ukungqubana, inciphisa ukuphuma, kwaye ikhawulezise ukuguguleka. Abavelisi beprimiyamu bafumana ukugqitywa komphezulu weRa 0.4 0.8 μm eludongeni lomngxuma wangaphakathi, besondela kumgangatho wepolishi yesipili [5].
Unyango lobushushu beVacuum. Unyango lobushushu lelona nyathelo libalulekileyo lokucubungula. Ukuqina kwevacuum ngokuchaseneyo neendlela zomoya okanye zokuhlamba ngetyuwa kufezekisa ubulukhuni obufanayo ngaphandle kokunyibilikiswa komphezulu okanye ukubola kwekhabhoni. Le nkqubo ijolise kwi-HRC 52 60 kumphezulu wokusebenza ngelixa igcina ubulukhuni be-core ukuze imelane nokuqhekeka phantsi kophawu lokulayisha olujikelezayo lwe-high-fiber rations [5], [3].
Ukugqitywa kweCNC. Emva konyango lobushushu, idayethi idlula kwi-CNC finish return, countersinking, kunye nokusilwa kwe-inner bore. Countsinking yenziwa ngoomatshini be-CNC countersinking abazenzekelayo ukuqinisekisa iiprofayili zokungena kwemingxuma ezifanayo, ngelixa i-inner bore igutyungelwe ukuya kumlinganiselo ochanekileyo oqinisekisa ukuba i-roller-to-die gap ihambelana kakuhle kumjikelezo opheleleyo [5].
Ukuqinisekiswa koMgangatho. Abavelisi beprimiyamu baqinisekisa ubulukhuni, ukunyamezelana kobubanzi bemingxuma (± 0.15 mm kwiidayi ezichanekileyo), ukugqitywa komphezulu, kunye nomlinganiselo wokucinezelwa ngaphambi kokuthunyelwa. Abanye abavelisi basika umlinganiselo wokucinezelwa nge-laser kunye nomgangatho wezinto ngqo emzimbeni wedayi ukuze babhekisele kumqhubi [3].
Ukukhetha Izinto Ezifanelekileyo: Isakhelo Sezigqibo
Isakhelo sesigqibo sokukhetha izinto zezi zilandelayo. Kwinkukhu okanye ukutya kwemfuyo okuqhelekileyo kwindawo eyomileyo, i-20CrMnTi iyacetyiswa njengokhetho olungabizi kakhulu. Kwinkukhu okanye ukutya kwemfuyo okufumileyo okanye okuguquguqukayo, i-X46Cr13 okanye i-4Cr13 iyacetyiswa. Kwi-aqua feed (intlanzi/iishrimp) enomswakama ophezulu, i-X46Cr13 okanye i-4Cr13 iyacetyiswa. Kwi-pellet yomthi enomngcipheko omncinci wokugqwala, i-20CrMnTi iyacetyiswa. Kwi-formula ezirhabaxa kakhulu eziqulethe iiminerali okanye i-silica, i-X46Cr13 okanye i-4Cr13 iyacetyiswa. Kwi-service life priority, i-X46Cr13 okanye i-4Cr13 enonyango lobushushu be-vacuum kwi-HRC 58 60 iyacetyiswa. Kwi-formula esemgangathweni enqongopheleyo, i-20CrMnTi iyacetyiswa.
Isiphelo
Ukukhethwa kwezinto ze-ring die sisigqibo sobunjineli esinemiphumo ethe ngqo yezemali. I-X46Cr13 martensitic stainless steel enobunzima bayo obulinganiselayo, ukumelana nokuguguleka, kunye nokumelana nokugqwala imele umgangatho woshishino lwee-premium feed pellet mill ring dies. I-20CrMnTi alloy steel inikezela ngenye indlela engabizi kakhulu kwizicelo eziqhelekileyo ezinomngcipheko ophantsi wokugqwala. Inkqubo yokuvelisa ngakumbi unyango lobushushu be-vacuum kunye nokuchaneka kokubhola izibhamu kubaluleke ngokulinganayo ekuguquleleni iipropati zezinto zibe kukusebenza okusebenzayo. Kwii-mills ezifuna ukunciphisa iindleko ngetoni nganye kunye nokwandisa amaxesha okutshintshwa kwe-die, ukutyala imali kumgangatho wezinto kunye nokuchaneka kwemveliso kudla ngokuvelisa imbuyekezo edlula kakhulu iindleko zokuthenga ezinyukayo.
Ixesha lokuthumela: Juni-20-2026
