Forging ntxuavyog cov txheej txheem ntawm kev tshem tawm qhov tsis xws luag ntawm forgings los ntawm kev siv tshuab lossis tshuaj. Txhawm rau txhim kho qhov zoo ntawm forgings, txhim kho qhov kev txiav ntawm forgings thiab tiv thaiv qhov tsis xws luag los ntawm kev nthuav dav, nws yuav tsum tau ua kom huv si saum npoo ntawm billets thiab forgings txhua lub sijhawm hauv txheej txheem forging.
Txhawm rau txhim kho qhov zoo ntawm qhov chawforgings, txhim kho cov kev txiav txim siab ntawmforgingsthiab tiv thaiv qhov chaw tsis xws luag los ntawm kev nthuav dav, nws yuav tsum tau ua kom huv si saum npoo ntawm billets thiabforgingsthaum twg los tautxheej txheem forging. Hlau forgingsfeem ntau yog cua sov ua ntejforgingnrog cov txhuam hlau los yog cov cuab yeej yooj yim tshem tawm cov nplai oxide. Qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Scales ntawm txias forgings yuav raug tshem tawm los ntawm pickling los yog blasting (pellets). Nonferrous alloy oxide nplai yog tsawg, tab sis ua ntej thiab tom qab forging rau pickling tu, nrhiav kom tau raws sij hawm thiab tshem tawm ntawm deg tsis xws luag. Qhov chaw tsis xws luag ntawm billet los yog forgings feem ntau suav nrog cov kab nrib pleb, folds, khawb thiab suav nrog. Yog tias cov teeb meem no tsis raug tshem tawm hauv lub sijhawm, lawv yuav muaj kev cuam tshuam tsis zoo rau cov txheej txheem forging tom ntej, tshwj xeeb tshaj yog rau txhuas, magnesium, titanium thiab lawv cov alloys. Cov teeb meem tshwm sim tom qab pickling ntawm non-ferrous alloy forgings yog feem ntau ntxuav nrog cov ntaub ntawv, scrapers, grinders los yog pneumatic cov cuab yeej. Qhov tsis xws ntawm steel forgings yog ntxuav los ntawm pickling, xuab zeb blasting (steev), tua blasting, cov menyuam, kev co thiab lwm yam.

Acid ntxuav

Kev tshem tawm cov hlau oxides los ntawm cov tshuaj tiv thaiv. Rau me me thiab nruab nrab forgings feem ntau yog loaded rau hauv lub pob tawb hauv batch, tom qab tshem tawm roj, pickling corrosion, yaug, ziab thiab lwm yam txheej txheem. Txoj kev pickling muaj cov yam ntxwv ntawm kev ua haujlwm siab, ua haujlwm zoo, tsis muaj deformation ntawm forgings thiab tsis txwv cov duab. Pickling tshuaj tiv thaiv txheej txheem yuav inevitably tsim teeb meem gases, yog li ntawd, lub pickling chav tsev yuav tsum muaj cov pa tawm. Pickling sib txawv hlau forgings yuav tsum xaiv cov kua qaub sib txawv thiab muaj pes tsawg leeg raws li cov khoom siv hlau, thiab txais yuav cov txheej txheem pickling sib xws (kub, sijhawm thiab tu txoj kev).

Xuab zeb blasting (steev) thiab tua blasting tu
Nrog compressed cua raws li lub zog ntawm sandblasting (steev), ua rau cov xuab zeb los yog hlau txhaj tshuaj uas tsim high-ceev txav (sandblasting ua hauj lwm siab ntawm 0.2 ~ 0.3Mpa, txhaj peening ua hauj lwm siab ntawm 0.5 ~ 0.6Mpa), dav hlau mus rau lub forging nto rau ntaus tawm ntawm oxide nplai. Kev txhaj tshuaj blasting yog los ntawm kev kub ceev (2000 ~ 30001r / min) rotating centrifugal quab yuam ntawm lub impeller, cov hlau txhaj tshuaj mus rau lub forging nto los khob tawm lub oxide nplai. Sandblasting hmoov av, tsis tshua muaj kev ua tau zoo, tus nqi siab, siv ntau dua rau cov kev cai tshwj xeeb thiab cov ntaub ntawv tshwj xeeb forgings (xws li stainless hlau, titanium alloy), tab sis yuav tsum tau txais cov kev ntsuas kev tshem tawm plua plav. Kev txhaj tshuaj peening yog qhov huv si, kuj tseem muaj qhov tsis zoo ntawm kev tsim khoom qis thiab tus nqi siab, tab sis kev tu kom zoo dua. Kev txhaj tshuaj blasting yog dav siv rau nws cov khoom siv ntau lawm thiab kev siv tsawg.
Tua peening thiab tua blasting huv si, tib lub sij hawm, khob tawm ntawm oxide nplai, ua rau lub forging nto ua hauj lwm hardening, yog tsim nyog los txhim kho lub qaug zog tiv thaiv ntawm qhov chaw. Rau forgings tom qab quenching los yog quenching thiab tempering kev kho mob, kev ua hauj lwm hardening nyhuv yog qhov tseem ceeb thaum siv loj loj steel txhaj, lub hardness yuav nce los ntawm 30% ~ 40%, thiab lub thickness ntawm hardening txheej yuav ncav cuag 0.3 ~ 0.5 hli. Hauv kev tsim khoom raws li cov khoom siv thiab kev xav tau ntawm forgings xaiv cov khoom sib txawv thiab qhov loj me ntawm cov hlau txhaj tshuaj. Kev siv cov xuab zeb blasting (steev) thiab txhaj tshuaj blasting txoj kev los ntxuav cov forgings, nto tawg thiab lwm yam tsis xws luag yuav raug them, yooj yim ua rau tsis pom. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau siv cov khoom sib nqus los yog kev tshuaj xyuas fluorescence (saib kev kuaj lub cev thiab tshuaj lom neeg ntawm qhov tsis xws luag) los tshuaj xyuas qhov tsis xws luag ntawm forgings.

ntog
Cov forgings, nyob rau hauv ib lub nruas rotating, sib tsoo los yog sib tsoo ib leeg kom tshem tawm cov oxide nplai thiab burr ntawm lub workpiece. Txoj kev ntxuav no siv cov khoom siv yooj yim thiab yooj yim, tab sis nrov nrov. Haum rau me me thiab nruab nrab forgings uas tuaj yeem dais qee yam cuam tshuam thiab tsis yooj yim rau deform. Nruas tu tsis muaj abrasive, tsuas yog ntxiv daim duab peb sab hlau los yog steel pob txoj kab uas hla ntawm 10 ~ 30mm ntawm tsis-abrasive tu, feem ntau yog los ntawm kev sib tsoo kom tshem tawm cov oxide nplai. Lwm qhov yog ntxiv quartz xuab zeb, cov khoom sib tsoo log thiab lwm yam abrasives, sodium carbonate, soapy dej thiab lwm yam khoom siv ntxiv, feem ntau yog los ntawm kev sib tsoo rau kev ntxuav.

Kev vibration tu
Nyob rau hauv lub forgings tov nrog ib tug tej feem ntawm abrasives thiab additives, muab tso rau hauv lub vibrating thawv, los ntawm kev co ntawm lub thawv, thiaj li hais tias lub workpiece thiab abrasive sib tsoo ib leeg, nto ntawm forgings oxide thiab burr tawm. Txoj kev tu no yog tsim rau kev tu thiab polishing ntawm me me thiab nruab nrab-qhov loj me precision forgings.