Qhov tsis zoo ntawm annealing furnace khoom carburizing txoj kev:
Tso lus
Qhov tsis zoo ntawm annealing furnace khoom carburizing txoj kev:
(A) Carburizing qhov tob thiab cov pa roj carbon concentration tsis yooj yim rau kev kho kom raug, thiab muaj kev nyiam rau carburizing ntau dhau. Cov txheej txheem yog deformed heev.
(B) Thaum lub carburizing tiav lawm, nws tsis yooj yim rau quench ncaj qha thiab yuav tsum tau reheated.
(C) Ib puag ncig ua haujlwm tsis zoo thiab ntau tus neeg ua haujlwm.
(2) Txoj kev ua kua carburizing
Qhov zoo ntawm annealing rauv khoom carburizing txoj kev:
(A) Cov khoom siv yog pheej yig, kev ua haujlwm yooj yim, thiab tsis tas yuav siv tshuab siab.
(B) Cov cua kub cua sov tuaj yeem yog hluav taws xob, roj, lossis roj roj.
(C) Tsim nyog rau cov khoom loj thiab me me, tshwj xeeb tshaj yog rau cov uas xav tau cov txheej txheem loj lossis qub carburized.
(D) Haum rau ntau yam ntawm cov khoom ntim qis.
Deformation thiab cracking ntsuas ntawm annealing rauv:
1. Siv tsim nyog forging thiab pre-heat kev kho mob;
2. Siv cov txheej txheem kho cua sov kom tsim nyog;
3. Txais kev ua haujlwm kom raug;
4. Rau cov khoom uas yooj yim tawg thaum lub sij hawm quenching, xws li keyways, qhov, thiab lwm yam, thaiv lawv nrog asbestos.
Deformation thiab tawg ntawm annealing rauv
Ntev npaum li qhov deformation thiab tawg hauv quenching yog tshwm sim los ntawm kev ntxhov siab sab hauv los ntawm kev tsim cov kev ntxhov siab sab hauv thaum quenching, nws tuaj yeem muab faib ua ob hom: thermal stress thiab structural stress. Thaum lub thermal stress ua rau deformation ntawm lub workpiece, cov yam ntxwv ntawm lub workpiece: ua rau lub dav hlau ntug convex, thiab lub kaum sab xis ntug yog obtuse. , Qhov kev taw qhia ntev yuav luv, thiab kev taw qhia luv zuj zus. Nyob rau hauv ib lo lus, lub workpiece zoo li spherical. Cov yam ntxwv ntawm deformation ntawm lub workpiece tshwm sim los ntawm cov ntaub so ntswg kev nyuaj siab yog contraindications rau qhov no: lub dav hlau ua ib tug concave nto, lub kaum sab xis yog obtuse lub kaum sab xis, thiab cov kev taw qhia ntev yuav ntev; qhov kev taw qhia luv luv yog luv, nyob rau hauv ib lo lus, lub ntse lub kaum ntse ntse yuav protrude. Lub deformation thiab tawg ntawm lub workpiece yog tshwm sim los ntawm cov synthesis ntawm thermal stress thiab structural stress, tab sis cov kev taw qhia ntawm thermal stress thiab structural stress yog raws nraim opposite. Yog tias qhov kev kho cua sov tsim nyog, lawv tuaj yeem cuam tshuam ib leeg thiab txo qhov kev ntxhov siab seem, tab sis thaum cov kev ntxhov siab seem dhau los ntawm cov hlau, lub zog txhais tau hais tias lub workpiece yog deformed, thiab thaum cov residual kev nyuaj siab tshaj lub tensile lub zog ntawm lub workpiece. steel, lub workpiece yuav tawg.
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