Blow bar for ekyuma ekikuba ebyuma (steel millcasting liner plate) .

 

 

High-Chromium cast iron liners zirina high wear resistance n’obulamu obuwanvu, era zibadde zimanyiddwa okuva edda n’okumanyibwa amakolero. Omulimu gwazo ogwa waggulu gukiikirira omutindo ogw’oku ntikko ogw’ebintu eby’ekyuma ekiriwo kati-ebiziyiza. Wabula olw’okuba nti aloy ennyingi n’ebisale by’okufulumya ebingi, okutumbula kwazo n’okubikozesa bikoseddwa ku ddaala ery’enjawulo, ekivaamu obutakozesebwa nnyo. High-Chromroum cast iron liners zimanyiddwa olw’amaanyi gazo aga waggulu, obugumu n’okuziyiza okwambala. Zibadde zikozesebwa nnyo mu byuma ebinene eby’omupiira mu mulimu gwa seminti ebweru w’eggwanga, nga zirina obulamu bw’obuweereza obw’enjawulo obw’emyaka nga 8, ate mu kisenge eky’okubiri n’ekyokusatu, ziyinza okusukka emyaka 12, ate ezimu zisobola okumala emyaka 20, nga ziraga nti ziziyiza bulungi okwambala.

 

 

 

Ekipande kya Liner Liner eky’ekika kya chromroum sugh{{0} .

1. Ebikozesebwa mu kukola ebintu: high chromium alloy cast wear-Liner egumikiriza okusinga ekolebwa chromium, carbon, molybdenum, nickel n’ebintu ebirala. Ebirungo bya chromium bitera okuba wakati wa 12% ne 30%, ate kaboni ali 1.0% ku 3.0%. Okugezesa ebirungo by’eddagala mu chromium alloy liner erimu chromium omungi kulaga nti ekirungo kya chromium kiri 25%, kaboni alimu ebitundu 2.0%, ate ekirungo kya molybdenum kiri 2.5%, era kirimu n’omuwendo omutono ogwa nickel ne vanadium, ekituukana n’ekitundu ekyetaagisa chromium ekisuuliddwa waggulu nga kiwandiikiddwa mu GB/T17444-2-2011.
2. Ebifaananyi by’ebyuma: Ensengekera y’ebyuma ey’okwambala kwa chromium alloy high aloy cast okwambala-Liner egumikiriza erimu matrix ya martensite, eutectic carbides ne secondary carbides. Eutectic carbides zigabibwa mu mutimbagano ogugenda mu maaso oba ogutakoma, nga gukaluba okutuuka ku HV1600. Ekigezo ky’ebyuma (metallographic test) kya layini ezimu kiraga nti ekitundu kya eutectic carbides kiri 35%, nga kigabanyizibwa kyenkanyi ku matrix ya martensite, nga kikakasa okuziyiza kwa kwambala okulungi ennyo.
3. Ebiraga omutindo gw’ebyuma: high chromium alloy cast wear-Liner eziyiza erina obugumu obw’amaanyi n’okuziyiza okwambala. Obukaluba bwa Rockwell HRC busobola okutuuka ku 58-65. Obukakanyavu obwennyini obwa liner ezimu buli HRC62, ate mu kugezesebwa kwa quartz sand wear, omuwendo gw’okwambala guli 0.08g/cm’ zokka. Mu nsonga z’okukaluba okukosa, amaanyi g’okunyiga okukosa gasobola okutuuka ku 15-25J. Amasoboza ag’okunyiga ag’ekika ekimu aga liner agagezesebwa wansi w’amasoboza ag’okukuba 20J kwe kuba nti tewali njatika oba kumenyeka kubaawo.
4. Enkola y’okusuula Ensonga enkulu: Liner ya chromium high chromium esuulibwa nga ekozesa okusuula omusenyu oba okusuula foam okubula. Ku musenyu, ebikozesebwa mu kubumba birondebwa nga silika omusenyu ne resin, era ekibumbe kyetaaga okukalizibwa ku bbugumu erya waggulu. Mu nkola ya liner casting, ebbugumu ly’okukala liri 300℃, ate obudde bw’okukwata buba bwa ssaawa 4 okuziyiza okusuula obulema. Mu kusuula foam okubula, ekibumbe kya foam kyetaaga okusiigibwa langi etali ya kuziyiza, okukalira, n’oluvannyuma ne kifukibwako puleesa embi. Liner ekolebwa omukozi omulala okuyita mu nkola ya foam eyabula erina obukaluba ku ngulu RA < 12.5hb, n’obutuufu bwa CT9 level.
5. Ebikwata ku nkola y’okulongoosa ebbugumu: Okulongoosa ebbugumu mu layini ya chromium aloy erimu okuzikiza n’okukkakkanya ebbugumu. Ebbugumu ly’okuzikiza liri 950-1050℃, era obudde bw’okukwata busalibwawo okusinziira ku buwanvu. Ku liner ya mm 20, obudde bw’okukwata buba bwa ssaawa 2. Okunyogoza amafuta oba okunyogoza empewo kukozesebwa. Obukakanyavu bwa liner ezimu oluvannyuma lw’okuzikira ye HRC60. Ebbugumu ly’obusungu liri 200-300℃, ate obudde bw’okukwata buba bwa ssaawa 2 okumalawo situleesi ey’omunda. Amasoboza ag’okunyiga agakwata ku layini ezimu oluvannyuma lw’okukkakkanya geeyongera ebitundu 10%, ate nga gakuuma obukaluba obw’amaanyi.

Lwaki tulonda .

 

Ebintu ebikozesebwa amangu nga biriko ebintu ebikozesebwa mu kukola emirimu egy’omutindo ogwa waggulu nga biriko omutindo gwa waggulu

Lwaki londa ebintu byaffe .

 

1. 20 Emyaka egy'obumanyirivu mu kusuula ekyuma ekisuuliddwa, okukakasa omutindo, okutuusa mu budde
2. Ebikozesebwa mu kukola ebyuma ebituukiridde n’okukebera bisobola okukuwa butereevu ebitundu ebiwedde n’okutuukiriza ebisaanyizo by’okukebera bakasitoma .
3. Erina eddembe eryetongodde eriyingiza n’okufulumya ebintu era esobola okufulumya ebintu mu bitundu by’ensi byonna .

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