I-ring die iyinhliziyo yesigayo se-pellet. Ukwakheka kwayo kwezinto kanye nekhwalithi yokukhiqiza kunquma ngqo ikhwalithi ye-pellet, umthamo wokukhiqiza, ukusetshenziswa kwamandla, kanye nesilinganiso esibaluleke kakhulu sezindleko ngethani. Lapho i-ring die iguga ngaphambi kwesikhathi, ivimba njalo, noma ikhiqiza ama-pellet angazinzile, imbangela eyinhloko ivame ukubuyela emuva ekukhetheni izinto noma izinqamuleli zokukhiqiza. Lesi sihloko sihlola imindeni emibili eyinhloko yezinto zokwakha i-ring die insimbi engagqwali ye-martensitic (X46Cr13/4Cr13) kanye nensimbi ye-alloy (20CrMnTi) kanye nezinqubo zokukhiqiza ezihumusha izakhiwo zezinto zibe ukusebenza kahle kokusebenza.
Kungani Izinto Eziyindandatho Zibalulekile
Ngesikhathi sokukhiqizwa kwe-pellet, i-ring die isebenza ngaphansi kokucindezela okuphezulu ngasikhathi sinye, ukungqubuzana okuphezulu, kanye nokucindezeleka komshini okujikelezayo. I-feed mash iphoqelelwa ukuthi idlule ezimbotsheni ze-die ngama-press rollers kuyilapho umusi, umswakama, amaminerali, kanye nezithako ezihudulayo ziqhubeka nokusebenza endaweni yokusebenza kanye nezindonga zemigodi. Ukukhetha izinto ezimbi kungangena ezinkingeni eziningi: ukuguguleka okusheshayo kwemigodi, ukwehla kokuqina kokucindezelwa, ukuncipha kokuqina kwe-pellet, ukuvaleka kwe-die okuvamile, ukukala kwangaphakathi kwendawo, kanye nengozi ephezulu yokuqhekeka [1].
Izingqinamba zomnotho zibalulekile. Idayi eshibhile edinga ukushintshwa njalo, ebangela ukungasebenzi isikhathi esiningi, noma ehlisa ikhwalithi yama-pellet ibiza kakhulu ngezindleko zobunikazi kunedayi esezingeni eliphezulu enempilo yesevisi ende.
Imindeni Yezinto Ezibonakalayo: Ukubuka Konke Okuqhathanisayo
Imboni ye-ring die isebenzisa ngokuyinhloko izigaba ezimbili zezinto ezibonakalayo, lapho ukukhetha kuqhutshwa ukwakheka kokudla, izimo zokusebenza, kanye nengozi yokugqwala.
Isigaba sokuqala yi-Martensitic Stainless Steel, enamazinga ajwayelekile afaka phakathi i-X46Cr13 kanye ne-4Cr13, okufinyelela ubulukhuni be-HRC 52 60. Amandla ayinhloko afaka phakathi ubulukhuni obuphezulu, ukumelana nokugqwala, kanye nokuphila isikhathi eside. Umkhawulo oyinhloko izindleko eziphezulu zamayunithi. Izicelo ezivamile zifaka phakathi izinkukhu, ukudla kwasemanzini, kanye namafomula aguga kakhulu.
Isigaba sesibili yi-Alloy Steel, enamazinga ajwayelekile afaka phakathi i-20CrMnTi, i-40Cr, kanye ne-42CrMo, okufinyelela ubulukhuni be-HRC 55 60. Amandla abalulekile afaka phakathi ukuqina okuhle, amanani angabizi, kanye namandla amahle kakhulu omshini. Umkhawulo oyinhloko ukumelana nokugqwala okuphansi. Izicelo ezivamile zifaka phakathi izinkukhu, imfuyo, kanye ne-biomass ejwayelekile. Imithombo: [1], [2].
I-X46Cr13 / 4Cr13: Izinga Lemboni Lama-Premium Ring Dies
I-X46Cr13 (DIN 1.4034, igama lesiShayina elithi 4Cr13) iyinsimbi engagqwali eyenziwe nge-martensitic futhi into esetshenziswa kakhulu ekudayiseni indandatho yobungcweti. Ukubusa kwayo akuveli ngengozi kodwa kuvela ebhalansini elihle lezakhiwo.
Ukuqina. Ngemva kokwelashwa ngokushisa kwe-vacuum, i-X46Cr13 ifinyelela i-HRC 52 60 endaweni yokusebenza ngenkathi igcina ukuqina okwanele kwe-core. Isibonelo, imininingwane yokukhiqiza ye-Shanbao ihlose i-HRC 52 55, kuyilapho i-premium dies ye-Hongyang ifinyelela i-HRC 58 60 ngokuqinisa i-vacuum [2], [3].
Ukumelana Nokugqwala. Okuqukethwe kwe-chromium (cishe u-13%) kunikeza ukumelana okungcono kakhulu nomswakama, umusi, kanye nezithako zokudla ezigqwala kancane kunezinsimbi ze-alloy. Kwamafomula okuphakelwa kwamanzi anokuqukethwe okuphezulu komswakama, noma ezigayweni ezisebenza ezindaweni ezinomswakama, lokhu kumelana nokugqwala kwandisa ngqo impilo yokufa [1].
Ukumelana Nokuguguleka. Inhlanganisela yokuqukethwe okuphezulu kwekhabhoni kanye nama-carbide e-chromium akhiwe ngesikhathi sokwelashwa kokushisa ikhiqiza indawo engagugi egcina i-geometry yemigodi ngaphezu kokukhiqiza okude. Ekuhlolweni okuqhathanisayo, ama-X46Cr13 ring dies ahlala edlula ama-alloy steel dies ezinhlotsheni zenkukhu eziguguleka kakhulu kanye nezicelo zokudla kwasemanzini [1].
Umthetho Wokukhetha Osebenzayo. Ezigayweni zokuphakelayo lapho imodi yokuhluleka okuyinhloko kungukuguguleka kwemigodi, ukuwohloka kobuso bangaphakathi, noma ukulahlekelwa amandla kunokuba kube ukugqwala kwamakhemikhali i-X46Cr13 imele inketho enamandla kunazo zonke yezinto ezibonakalayo. Ucwaningo lwecala lwaseHongyang Kazakhstan lubhale impilo yenkonzo yedayi yendandatho yamahora angu-880 (kusukela emahoreni angu-600 emshinini oshintshiwe) ngamadayi alingana ne-X46Cr13, okumele ukuthuthuka okungu-46.7% [3].
Insimbi Ye-Alloy engu-20CrMnTi: Ihhashi Elisebenzayo Elingabizi.
I-20CrMnTi iyinsimbi ye-carburizing alloy esetshenziswa kabanzi kuma-ring dies ezinkukhu ezijwayelekile, emfuyweni, nakwezinye izinhlelo zokusebenza ze-biomass lapho ingozi yokugqwala iphansi khona futhi isilinganiso sezindleko nokusebenza kahle yisona esibaluleke kakhulu.
Ukuqina. I-20CrMnTi inikeza ukuqina okuhle kakhulu, okubalulekile lapho umshini wokugaya i-pellet usebenza ngaphansi komthwalo oguquguqukayo, lapho amafomula okuphakelayo equkethe izinhlayiya eziqinile, noma lapho ukulungiswa kwe-roller kungenakuhlale kugcinwa ngokunemba okuphezulu [1].
Ukuqina. Ngemva kokufaka i-carburing kanye nokucima, i-20CrMnTi ifinyelela i-HRC 55 60 ebusweni nge-core eqinile. Le nhlanganisela imelana nokuguguleka kwendawo ngenkathi imunca imithwalo yomthelela engase iqhekeze into ephuka kalula [2].
Idatha Yempilo Yesevisi. Ekusebenzeni kwensimu, ama-20CrMnTi ring dies afinyelela amahora angu-2,000 kuya ku-3,000 ekudleni kwezinkukhu okujwayelekile okusekelwe kokusanhlamvu kanye namahora angu-1,200 kuya ku-1,800 ekukhiqizweni kwe-pellet yokhuni oluqinile olunobuthi obumaphakathi. Ezintweni ezihuquzelayo kakhulu njenge-rice husk (ubulukhuni be-Mohs 7 ngenxa yokuqukethwe kwe-silica), impilo yesevisi ingehla iye kumahora angu-800 kuya ku-1,500 [4].
Imikhawulo. Ubuthakathaka obuyinhloko ukumelana nokugqwala. Ezakhiweni ezinomswakama ophezulu, usawoti, noma izingxenye ze-asidi, i-20CrMnTi isengozini yokugqwala nokuhlaselwa ngamakhemikhali okugaya izindawo zemigodi efile, okwandisa ukungqubuzana, ukunciphisa ukuphuma, kanye nokunciphisa impilo yenkonzo esebenzayo kungakhathaliseki ukusebenza kokuguguleka komshini [1].
Izinto Ezisetshenziswayo Azifanelekeli Ama-Dies Endandatho Esezingeni Lokuphakelwa Kochwepheshe
Kubalulekile ukucacisa iphutha elivamile. Ngenkathi eminye imishini yokugaya ama-pellet ejwayelekile iqondisa izinsimbi ezithwala ama-bearing (njenge-GCr15 / 52100) njengezinto zokugaya ama-ring die, lezi zifanelekela kakhulu ama-flat dies emisebenzini ye-biomass encane. I-GCr15 inezici ezahlukene zokukhulisa ukushisa futhi ayinawo ukumelana nokugqwala kanye nokuqina komthelela okudingekayo kuma-ring die ochwepheshe abasebenza ngaphansi kwezimo zezimboni eziqhubekayo. Ama-feed pellet mills ochwepheshe kufanele asebenzise insimbi engagqwali ye-X46Cr13/4Cr13 martensitic noma insimbi ye-alloy engu-20CrMnTi kuma-ring die [1].
Inqubo Yokukhiqiza: Lapho Izinto Zihlangana Nokunemba
Ukukhethwa kwezinto zokwakha kuyadingeka kodwa akwanele. Inqubo yokukhiqiza inquma ukuthi izakhiwo zezinto zokwakha zihumusha yini ekusebenzeni kahle.
Ukwakha. Ukukhiqizwa kwedayi yendandatho esezingeni eliphezulu kuqala ngedayi eluhlaza. Abakhiqizi be-premium basebenzisa amadayi akhethekile ane-chromium eluhlaza kanye nokuqina okungenalutho okulawulwayo (HB 180 220). Ukwakha okufanele kucwengisisa isakhiwo sezinhlamvu, kususe izikhala zangaphakathi, futhi kungandisa impilo yokugcina yedayi cishe ngo-15% uma kuqhathaniswa nezinye izindlela ezingezona ezibunjiwe [5].
Ukubhoboza Izibhamu. Izimbobo ze-die zikhiqizwa kusetshenziswa imishini yokubhoboza izibhamu ye-CNC esebenza ngesivinini esifinyelela ku-15,000 RPM. Ukushelela kwezimbobo kuyipharamitha yekhwalithi ebalulekile: izimbobo eziqinile zandisa ukungqubuzana, zinciphisa ukuphuma, futhi zisheshise ukuguguleka. Abakhiqizi be-premium bathola ukuqeda kobuso okungu-Ra 0.4 0.8 μm odongeni lwembobo yangaphakathi, besondela ekhwalithini yokupholisha kwesibuko [5].
Ukwelashwa Kokushisa Nge-Vacuum. Ukwelashwa kokushisa kuyisinyathelo esibaluleke kakhulu sokucubungula. Ukuqina kwe-vacuum ngokungafani nezindlela zomoya noma zokugeza ngosawoti kufeza ubulukhuni obufanayo ngaphandle kokushiswa komhlaba noma ukuqedwa kwe-carburization. Le nqubo ihlose i-HRC 52 60 endaweni yokusebenza ngenkathi igcina ukuqina kwengaphakathi ukuze imelane nokuqhekeka ngaphansi kwesici sokulayisha esijikelezayo sezilinganiso ze-fiber ephezulu [5], [3].
Ukuqedwa kwe-CNC. Ngemva kokwelashwa ngokushisa, idayisi idlula ekuguqulweni kokuqeda kwe-CNC, ukucwiliswa kabusha, kanye nokugaywa kwebhore langaphakathi. Ukucwiliswa kabusha kwenziwa yimishini yokucwiliswa kabusha ye-CNC ezenzakalelayo ukuqinisekisa amaphrofayili okungena embobeni afanayo, kuyilapho ibhore langaphakathi ligaywa ukuze kube nokubekezelelana okuqondile okuqinisekisa igebe elihambisanayo phakathi kwe-roller-to-die kulo lonke umjikelezo [5].
Ukuqinisekiswa Kwekhwalithi. Abakhiqizi be-premium baqinisekisa ubulukhuni, ukubekezelelana kobubanzi bembobo (± 0.15 mm yamadayi anembe kakhulu), ukuqeda kobuso, kanye nesilinganiso sokucindezela ngaphambi kokuthunyelwa. Abanye abakhiqizi basika isilinganiso sokucindezela nge-laser kanye nezinga lezinto ngqo emzimbeni wedayi ukuze kubhekwe ku-opharetha [3].
Ukukhetha Izinto Ezifanele: Uhlaka Lwezinqumo
Uhlaka lwesinqumo sokukhetha izinto lulandelayo. Kokudla kwezinkukhu noma kwezilwane okujwayelekile endaweni eyomile, kunconywa i-20CrMnTi njengokukhetha okungabizi kakhulu. Kokudla kwezinkukhu noma kwezilwane ezifuywayo ezimweni zomswakama ezinomswakama noma eziguquguqukayo, kunconywa i-X46Cr13 noma i-4Cr13. Kokudla kwasemanzini (inhlanzi/izimfanzi) ezinomswakama ophezulu, kunconywa i-X46Cr13 noma i-4Cr13. Kokudla kwezinkuni okunengozi yokugqwala ephansi, kunconywa i-20CrMnTi. Kokwakheka okuguguleka kakhulu okuqukethe amaminerali noma i-silica, kunconywa i-X46Cr13 noma i-4Cr13. Kokubaluleke kakhulu empilweni yenkonzo, kunconywa i-X46Cr13 noma i-4Cr13 ngokwelashwa kokushisa kwe-vacuum ku-HRC 58 60. Kokusetshenziswa kwefomula ejwayelekile okulinganiselwe, kunconywa i-20CrMnTi.
Isiphetho
Ukukhethwa kwezinto ezisebenzisa i-ring die kuyisinqumo sobunjiniyela esinemiphumela eqondile yezezimali. Insimbi engagqwali ye-X46Cr13 martensitic enobunzima bayo obulinganiselayo, ukumelana nokuguguleka, kanye nokumelana nokugqwala imelela indinganiso yemboni yezindandatho ezisebenzisa i-premium feed pellet mill. Insimbi ye-alloy engu-20CrMnTi inikeza enye indlela engabizi kakhulu yezinhlelo zokusebenza ezijwayelekile ezinengozi ephansi yokugqwala. Inqubo yokukhiqiza ikakhulukazi ukwelashwa kokushisa kwe-vacuum kanye nokunemba kokubhoboza izibhamu kubaluleke ngokulinganayo ekuguquleni izakhiwo zezinto zibe ukusebenza kahle. Kuma-mill afuna ukunciphisa izindleko ngethani kanye nokwandisa izikhawu zokushintsha i-die, ukutshala imali kwikhwalithi yezinto ezibonakalayo kanye nokunemba kokukhiqiza kuvame ukuletha imbuyiselo edlula kakhulu izindleko zokuthenga ezengeziwe.
Isikhathi sokuthunyelwe: Juni-20-2026
