Forgings ntxuavyog cov txheej txheem ntawm kev tshem tawm qhov tsis xws luag ntawmforgingslos ntawm kev siv tshuab lossis tshuaj lom neeg. Txhawm rau txhim kho qhov zoo ntawm qhov chawforgings, txhim kho cov kev txiav txim siab ntawmforgingsthiab tiv thaiv qhov tsis xws luag ntawm qhov loj, nws yuav tsum tau ntxuav cov dawb paug thiab forgings txhua lub sij hawm thaum lub sij hawm forging ntau lawm.

Txhawm rau txhim kho qhov zoo ntawm forgings, txhim kho qhov kev txiav ntawm forgings thiab tiv thaiv qhov tsis xws luag ntawm qhov loj, nws yuav tsum tau ntxuav qhov khoob thiab forgings txhua lub sijhawm thaum lub sijhawm forging ntau lawm. Hlau forgings feem ntau yog ntxuav nrog txhuam hlau los yog cov cuab yeej yooj yim ua ntej forged tom qab cua sov. Billet nrog qhov loj me me tuaj yeem ntxuav tau los ntawm kev txhaj tshuaj dej siab. Cov tawv nqaij oxide ntawm qhov txias forgings tuaj yeem raug tshem tawm los ntawm pickling lossis blasting. Lub oxide nplai ntawm nonferrous alloy yog tsawg, tab sis nws yuav tsum tau khaws cia ua ntej thiab tom qab forging kom pom thiab tshem tawm qhov tsis xws luag hauv lub sijhawm. Qhov deg tsis xws luag ntawm billet los yog forging feem ntau yog tawg, folds, khawb thiab inclusions. Cov teeb meem no, yog tias tsis muab tshem tawm raws sijhawm, yuav ua rau 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. Qhov tsis xws luag tshwm sim tom qab pickling ntawm nonferrous alloy forgings feem ntau yog ntxuav nrog cov ntaub ntawv, scrapers, grinder los yog pneumatic cov cuab yeej, thiab lwm yam. Qhov tsis xws luag ntawm steel forgings yog ntxuav los ntawm pickling, blasting (steev), tua blasting, cov menyuam, kev co thiab lwm yam.

Acid ntxuav

Cov tshuaj tiv thaiv yog siv los tshem tawm cov hlau oxide. Me me thiab nruab nrab forgings feem ntau yog muab tso rau hauv lub pob tawb thiab ua tiav los ntawm ntau cov txheej txheem xws li kev tshem tawm roj, pickling thiab corrosion, yaug thiab tshuab ziab. Txoj kev pickling muaj cov yam ntxwv ntawm kev ua haujlwm siab, ua haujlwm zoo, tsis muaj deformation ntawm forgings thiab unlimited cov duab. Nyob rau hauv tus txheej txheem ntawm pickling tshuaj tiv thaiv, nws yog inevitable los tsim gases teeb meem rau tib neeg lub cev. Yog li ntawd, yuav tsum muaj cov khoom tso tawm hauv chav pickling. Pickling sib txawv hlau forgings yuav tsum ua raws li cov khoom siv hlau los xaiv cov kua qaub sib txawv thiab muaj pes tsawg leeg, cov txheej txheem sib xyaw ua ke (kub, sijhawm thiab kev ntxuav) yuav tsum tau txais yuav.

Xuab zeb blasting (steev) thiab tua blasting tu

Xuab zeb blasting (steev) siv los ntawm compressed cua ua rau cov xuab zeb los yog hlau tua txav ntawm kev kub ceev (kev ua haujlwm siab ntawm cov xuab zeb blasting yog 0.2-0.3mpa, thiab kev ua hauj lwm siab ntawm kev txhaj tshuaj blasting yog 0.5-0.6mpa), uas yog txau rau ntawm forging nto los so tawm oxide nplai. Kev txhaj tshuaj blasting cia siab rau lub zog centrifugal ntawm tig impeller ntawm kev kub ceev (2000 ~ 30001r / min) los tua cov hlau txhaj tshuaj mus rauforging ntotxhawm rau tshem tawm cov nplai oxide. Xuab zeb blasting tu plua plav, tsis tshua muaj kev ua tau zoo, tus nqi siab, siv rau cov kev cai tshwj xeeb thiab cov ntaub ntawv tshwj xeeb forgings (xws li stainless hlau, titanium alloy), tab sis yuav tsum siv cov cuab yeej siv plua plav tshem tawm kom zoo. 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 vim nws cov khoom siv ntau lawm thiab kev siv tsawg.

Kev txhaj tshuaj peening thiab txhaj tshuaj blasting tuaj yeem tsis tsuas yog tshem tawm cov oxide ntawm daim tawv nqaij, tab sis kuj ua rau saum npoo ntawm forging ua hauj lwm nyuaj, uas yog qhov zoo los txhim kho lub peev xwm los tiv thaiv kev qaug zog ntawm qhov chaw. Rau cov forgings tom qab quenching los yog quenching thiab tempering kev kho mob, kev ua hauj lwm hardening nyhuv yog qhov tseem ceeb tshaj thaum loj loj steel txhaj siv, lub hardness yuav nce los ntawm 30% ~ 40%, thiab hardened txheej thickness yuav mus txog 0.3 ~ 0.5. mm. Hauv kev tsim khoom, kev txhaj tshuaj steel nrog cov khoom sib txawv thiab cov qoob loo loj yuav tsum raug xaiv raws li cov khoom siv thiab kev xav tau ntawm forgings. Yog hais tias cov forgings raug ntxuav los ntawm blasting (steev) thiab txhaj tshuaj blasting, nto tawg thiab lwm yam tsis xws luag yuav raug muab zais, uas tej zaum yuav yooj yim ua rau ploj mus kuaj. Yog li ntawd, cov txheej txheem xws li kev soj ntsuam hlau nplaum lossis tshuaj fluorescence (saib kev kuaj lub cev thiab tshuaj lom neeg ntawm qhov tsis xws luag) yuav tsum tau kuaj xyuas qhov tsis xws luag ntawm forging.

ntog

Nyob rau hauv lub nruas rotating, cov forgings yog bumped los yog hauv av kom tshem tawm cov oxide daim tawv nqaij thiab burrs ntawm lub workpiece. Txoj kev ntxuav no siv cov cuab yeej yooj yim thiab yooj yim, tab sis tsis muaj suab nrov. Haum rau me me thiab nruab nrab forgings uas tuaj yeem dais qee qhov cuam tshuam tab sis tsis yooj yim deform. Cov menyuam huv si tsis muaj abrasives, tsuas yog nrog daim duab peb sab hlau thaiv lossis steel pob nrog txoj kab uas hla ntawm 10 ~ 30mm tsis muaj abrasives, feem ntau yog los ntawm kev sib nrig sib cuam tshuam los ntxuav cov nplai oxide. Lwm qhov yog ntxiv cov abrasive xws li quartz xuab zeb, seem sib tsoo log, sodium carbonate, soapy dej thiab lwm yam khoom siv ntxiv, feem ntau los ntawm kev sib tsoo kom huv.

Kev vibration tu

Ib qho kev faib ua feem ntawm abrasives thiab additives yog tov nyob rau hauv forgings thiab muab tso rau hauv lub vibrating thawv. Los ntawm kev vibration ntawm lub thawv, lub workpiece thiab abrasive yog hauv av, thiab oxide daim tawv nqaij thiab burrs nyob rau saum npoo ntawm forgings yog av. Txoj kev ntxuav no yog tsim rau tu thiab polishing me me thiab nruab nrab precision forgings.