Qhib forging yog hais txog kev ua cov txheej txheem ntawm forging uas siv cov cuab yeej yooj yim thoob ntiaj teb lossis siv ncaj qha rau sab nraud ntawm sab sauv thiab sab qis ntawm cov khoom siv forging kom deform lub billet thiab tau txais cov duab geometric thiab sab hauv zoo. Forgings tsim siv txoj kev qhib forging yog hu ua qhib forgings.
Qhib forging tsuas yog tsim cov khoom me me ntawm forgings, thiab siv cov cuab yeej forging xws li rauj thiab hydraulic presses los tsim thiab ua cov khoom seem, tau txais kev tsim nyog forgings. Cov txheej txheem tseem ceeb ntawm kev qhib forging muaj xws li chim siab, elongation, xuas nrig ntaus, txiav, khoov, twisting, hloov chaw, thiab forging. Qhib forging txais cov txheej txheem kub forging.
Cov txheej txheem qhib forging suav nrog cov txheej txheem yooj yim, txheej txheem pabcuam, thiab txheej txheem tiav.
Cov txheej txheem yooj yim ntawm kev qhib forging muaj xws li chim siab, elongation, xuas nrig ntaus, khoov, txiav, twisting, hloov chaw, thiab forging. Hauv kev tsim khoom tiag tiag, cov txheej txheem siv feem ntau yog chim siab, elongation, thiab xuas nrig ntaus.
Cov txheej txheem pabcuam: Cov txheej txheem ua ntej deformation, xws li nias lub puab tsaig, nias steel ingot npoo, txiav lub xub pwg nyom, thiab lwm yam.
Cov txheej txheem tiav: Cov txheej txheem ntawm kev txo qhov tsis xws luag ntawm forgings, xws li tshem tawm qhov tsis sib xws thiab shaping nto ntawm forgings.
Qhov zoo:
(1) Forging muaj qhov yooj yooj yim, uas tuaj yeem tsim qhov me me ntawm tsawg dua 100kg thiab qhov hnyav txog li 300t;
(2) Cov cuab yeej siv yog cov cuab yeej siv yooj yim;
(3) Forging forming yog maj mam deformation ntawm billet nyob rau hauv txawv cheeb tsam, yog li ntawd, lub tonnage ntawm forging khoom yuav tsum tau rau forging tib forging yog ntau me dua li ntawm cov qauv forging;
(4) Tsawg precision yuav tsum tau rau cov khoom siv;
(5) Lub voj voog luv luv.
Disadvantages thiab kev txwv:
(1) Kev ua haujlwm ntau lawm qis dua li ntawm cov qauv forging;
(2) Forgings muaj cov duab yooj yim, tsis tshua muaj qhov tseeb, thiab qhov chaw ntxhib; Cov neeg ua haujlwm muaj kev siv zog ua haujlwm siab thiab yuav tsum muaj kev txawj ntse;
(3) Nws tsis yooj yim rau kev ua tiav tshuab thiab automation.
Kev puas tsuaj feem ntau tshwm sim los ntawm cov txheej txheem forging tsis raug
Cov teeb meem tshwm sim los ntawm cov txheej txheem forging tsis raug feem ntau suav nrog cov hauv qab no:
Cov nplej loj: Cov nplej loj feem ntau yog tshwm sim los ntawm qhov kub siab pib forging thiab tsis txaus deformation degree, siab kawg forging kub, los yog deformation degree poob rau hauv qhov tseem ceeb deformation cheeb tsam. Ntau dhau deformation ntawm aluminium alloy, ua rau kev ntxhib los mos; Thaum lub deformation kub ntawm high-temperature alloys tsawg dhau lawm, qhov tsim ntawm cov khoom sib xyaw deformation kuj yuav ua rau cov nplej ntxhib. Coarse grain loj yuav txo cov plasticity thiab toughness ntawm forgings, thiab txo lawv cov qaug zog kev ua tau zoo.
Cov qoob loo tsis sib xws: Cov qoob loo tsis sib xws yog hais txog qhov tseeb tias qee qhov ntawm lub forging muaj cov nplej tshwj xeeb, thaum lwm tus muaj cov nplej me. Qhov laj thawj tseem ceeb rau qhov tsis sib xws ntawm cov nplej yog qhov tsis sib xws ntawm cov pob zeb, uas ua rau muaj qhov sib txawv ntawm cov nplej tawg, lossis qhov deformation degree ntawm cov cheeb tsam hauv zos poob rau hauv qhov tseem ceeb deformation cheeb tsam, los yog lub zos ua hauj lwm hardening ntawm high-temperature alloys, los yog lub zos coarsening ntawm nplej thaum quenching thiab cua sov. Thaum tshav kub kub-resistant steel thiab high-temperature alloys yog tshwj xeeb tshaj yog rhiab heev rau uneven grain loj. Qhov loj me me ntawm cov nplej tsis sib xws yuav txo qhov ua haujlwm ntev thiab qaug zog ntawm forgings.
Txias hardening tshwm sim: Thaum lub sij hawm forging deformation, vim tsis kub los yog ceev deformation tus nqi, raws li zoo raws li sai txias tom qab forging, lub softening tshwm sim los ntawm recrystallization yuav tsis ua raws li lub zog (hardening) tshwm sim los ntawm deformation, uas ua rau ib feem tuav ntawm txias deformation qauv hauv forging tom qab kub forging. Lub xub ntiag ntawm lub koom haum no txhim kho lub zog thiab hardness ntawm forgings, tab sis txo cov plasticity thiab toughness. Qhov txias txias txias tuaj yeem ua rau forging tawg.
Cracks: Forging tej kab nrib pleb feem ntau yog tshwm sim los ntawm qhov tseem ceeb tensile kev nyuaj siab, shear stress, los yog ntxiv tensile kev nyuaj siab thaum lub sij hawm forging. Cov kab nrib pleb feem ntau tshwm sim hauv cheeb tsam nrog qhov siab tshaj plaws kev ntxhov siab thiab thinnest thickness ntawm billet. Yog hais tias muaj microcracks nyob rau saum npoo thiab sab hauv ntawm lub billet, los yog muaj lub koom haum tsis xws luag nyob rau hauv lub billet, los yog yog hais tias lub thermal ua hauj lwm kub tsis tsim nyog, ua rau ib tug txo nyob rau hauv cov ntaub ntawv plasticity, los yog yog hais tias tus deformation ceev yog heev ceev los yog lub thermal ua hauj lwm kub tsis tsim nyog. Deformation degree yog loj heev, tshaj qhov tso cai yas pointer ntawm cov khoom, cov kab nrib pleb yuav tshwm sim thaum lub sij hawm txheej txheem xws li coarsening, elongation, xuas nrig ntaus, expanding, dabtsi yog khoov, thiab extrusion.
Post lub sij hawm: Sep-19-2023
