Coquille - dab tsi yog qhov no?

Coquille - ib tug reusable pwm rau casting hlau. Nws tej zaum yuav yog phua (nyob rau hauv ob qhov chaw), los yog tsis (co txias). Cob phum pwm casting muaj ob peb zoo dua nws lub hnab, tab sis muaj ib co drawbacks, piv txwv li, nrog hlau casting castings yuav tsum tau ntxiv thaum tshav kub kub kev kho mob.

zoo

Thaum lub sij hawm tsim ntawm lub cam khwb cia tshwm sim intensive hloov lwm lub tsev ntawm tshav kub ntawm lub molten hlau nyob rau hauv lub hlau pwm. Qhov no tshwm sim muab ib tug ntau dua ceev, zoo dua txhua yam khoom ntawm cov hlau, siab precision, zoo qauv thiab ib tug tsawg dua nto roughness nyob rau hauv kev sib piv nrog castings los ntawm cov xuab zeb tuaj pwm.

txias casting txheej txheem yog yus muaj los ntawm qhov tseeb hais tias cov hlau pwm (hlau pwm) yuav siv tau dua. Nws yog ua los ntawm ib cov khoom ntawm siab zog, uas ua hauj lwm nto ntawm lub puab yog ua ntau yog. Qhov no tej nto zoo ntawm castings thiab vim lub high thermal conductivity ntawm lub casting pwm sai sai solidify.

Lwm zoo dua rau siv ntsawj txias casting xuab zeb tuaj pwm - ib tug tsawg dua degree ntawm ntxiv txhua yam ua ntawm lub castings, thiab qhov no thiaj li khoom noj ntawm molding.

Health thiab Ecology

Ntawj txias casting nyob rau hauv 2-3 lub sij hawm tsub kom tsim tau, vim hais tias ntawm tus txheej txheem yog muab cais tawm los ntawm lub sij hawm-siv ua hauj lwm xws li kev npaj ntawm sib tov, tu thiab molding khoom. Txij li thaum lub lawm cheeb tsam no yog tseem txo, kev siv nyiaj rau kev kho thiab kev tsim kho ntawm tshiab nroj tsuag yog me npaum li cas.

Ntawm tus txheej txheem eliminates ib tug ntau ntawm tsis zoo ua hauj lwm ua hauj lwm xws li co-tawm cov ntaub ntawv, tu castings thiab fettling. Qhov no muaj txhawb tsis tau tsuas yog los txhim kho tej yam kev mob nyob rau hauv lub chaw ua hauj lwm, tab sis kuj yuav txo qhov ib puag ncig kev ua qias tuaj.

shortcomings

Raug cov nqi ntawm tus tuag yog heev kim vim lub complexity ntawm tus txheej txheem. Nyob rau hauv lub xub ntiag ntawm undercuts nyob rau hauv lub casting pwm nqi nce vim qhov yuav tsum tau complicating cov qauv: siv inserts, pov tseg thiab separable zeb hlau rods.

Lub neej ntawm tus tuag yog txiav txim los ntawm tus xov tooj ntawm zoo zoo castings hais tias nws yuav tau txais. Kuj zoo thiab txiav txim seb lub economic feasibility ntawm tus txheej txheem, tshwj xeeb yog thaum lub sij hawm lub casting ntawm hlau thiab hlau. Kev txhim kho lub neej ntawm lub pwm yog ib yam ntawm cov loj hauj txoj kev sib tw nyob rau hauv daim teb no ntawm ntau lawm.

Vim lub ceev ceev txias thiab thooj qhuav compounded tau nyias-walled cov khoom uas ntev txias casting. Qhov no kuj ua rau yus lub fact tias cov cam khwb cia hlau ua khoom, bleached txheej. Daim ntawv no malleable, nws yuav ua tau kom txhawj xeeb thiab tej kab nrib pleb nyob rau hauv castings. Thaum uas siv cov pov tseg xuab zeb tub ntxhais yog txo precision castings tsub kom qhov chaw roughness ntawm qhov chaw ntawm kev sib cuag nrog lub pas nrig.

zoo castings

Lub casting daim ntawv thiab nrog high efficiency. Casting solidifies thiab cools nyob rau hauv cov xuab zeb daim ntawv yog ntev npaum li cas tshaj nyob rau hauv tus tuag, txawm li cas los, cov nyob ntawm cov xuab zeb tuaj pwm yog feem ntau zoo dua, ua yooj yim dua lawm txoj los ntawm txias casting castings uas tsis yog-ntws hlau, thiab txhawb kev txwv parameter xws li cov casting loj thiab qhov tsawg kawg nkaus thickness phab ntsa. Aluminium casting nyob rau hauv ib tug hlau pwm (thiab tooj liab thiab lwm yam uas tsis yog-ferrous co) yog lub nrov tshaj plaws nyob rau hauv Russia.

Txawm li cas los, vim rau sai txias yuav tsum tau ib tug uas tsis yog-ntxeem tau, zoo-grained qauv, uas tsub kom tsis tsuas lub dag lub zog, tiam sis kuj ductility ua casting. Nyob rau hauv lub chaw ua khoom ntawm cov khoom ua los ntawm hlau los ntawm tuag casting ib tug xov tooj ntawm cov teeb meem: vim lub peculiar crystallization nyob rau hauv castings can daim ntawv carbides, ferrite-graphite eutectic. Qhov no thiaj li lub toughness thiab hnav kuj muaj hlau. Bleached nto txheej nyob rau hauv xws castings yog heev nyuaj, yog li ntawd cov khoom yog tsim rau tej tsuas yog tom qab lub tshav kub kev kho mob (annealing), uas eliminates lub ntsawj txias.

Tus qauv ntawm daim ntawv no

Cov tuag - qhov no yog feem ntau ob tug tuaj pwm, uas yog mounted clamps (pins), thiab sai li sai tau ua ntej pouring lub molten hlau pwm tsau locks. Nreg casting yog ua los ntawm thiaj li hu ua lub hwj huam cua qhov thiab qhib siab plugs. Hlau pwm tsis connector nta hu ua Co Coquille.

Ua ntej pouring siv, zoo li tus ua hauj lwm nto kho txheej ntawm cov ntaub ntawv uas tiv thaiv ib tug hlau pwm los ntawm thermal poob siab los ntawm cov ceev kub sawv. Xws li ib tug kev ntsuas kuj tiv thaiv qhov chaw ntawm lub casting nrog cov pwm.

Steel thiab hlau

Ntawj txias casting ntawm hlau thiab hlau tshwm sim siv pulverized quartz, graphite, dej iav thiab refractory av nplaum raws li ib tug refractory txheej. Ua ntej sau cov hlau pwm yuav tsum tau rhuab mus rau ib tug tej yam kub uas nyob ntawm lub thickness ntawm cov phab ntsa hauv lub casting thiab cov hlau siv.

Lub ntsiab yuav tsum tau yuav tsum tau ntsib los ntawm cov khoom ntawm pwm - yog kuj mus teploudaram inevitable los ntawm pouring molten hlau. Yog siv rau cov uas ua tuaj pwm, grey cam khwb cia hlau, zas hlau, yam ntxwv, carbon thiab hlau steel, thiab alloys ntawm tooj liab thiab txhuas.

hlua hlau pwm

Qhov no zoo ntawm technology, uas muab qhov zoo sheath thiab ruaj khov tuaj pwm casting thiab disadvantages ntawm ob txoj kev yog smoothed. Qhov no technology yog yus muaj los ntawm tsis tsuas yog tus puas toughness tab sis kuj cov pliability uas tso cai rau yuav tsim high-precision castings, thiab thaum muab piv rau sheath txhaj tshuaj, kim molding material nqi yog tsawg heev.

Hlua hlau pwm yog manufactured los ntawm sau qhov chaw ntawm cov hlau casting qauv thiab lub puab nto ntawm cov pwm. Cov feem ntau siv txoj kev peskoduvny thiab muab tub lim. Rau sau nqa mus xuab zeb-cob sib tov, nyob rau lub txuas caij yog ib tug phenol formaldehyde cob (2-2.6%) thiab methenamine (txog 10% los ntawm qhov hnyav), thiab nws tus kheej-hardening (phau ntawv - dej iav) thiab tej hub compositions (tsevneeg - ethyl silicate). Cov tuag thiab casting qauv muaj qhov kub ntawm 200 degrees, lub tshav kub kis sib tov, uas hardens thiab ntaub ntawv ib tug cladding txheej 3-5 hli tuab. Pa los yog plhaub cores yog siv mus nqa tawm lub muaj kab noj hniav nyob rau hauv lub castings.

casting txheej txheem

Cov tuag coated nrog ib tug txheej ntawm refractory khoom yog rhuab. Cov kev khiav hauj lwm kub yuav tsum muaj tsawg kawg yog ob puas degrees, tab sis nyob tsis tau tsuas yog nyob rau hauv lub hlau siv rau casting, tab sis kuj nyob rau hauv lub loj ntawm lub casting, lub thickness ntawm cov phab ntsa thiab cov khoom uas yuav tsum tau ntawm nws. Tom qab cov cua kub nyob rau hauv ib tug hlau pwm yuav nruab ib lub rods, tej hub los yog xuab zeb, yog hais tias nws yog, ntawm chav kawm, yuav tsum tau los ntawm lub casting txoj kev npaj, thiab ces tus pwm halves yog koom thiab muab tub nruj nreem los ntawm tshwj xeeb clips. Yog hais tias zus tau tej cov casting tshwm sim nyob rau hauv clamping machine, nws yuav siv nws tus kheej locking mechanism cov ntaub ntawv. Tom qab no npaj nyob rau hauv ib tug hlau pwm yuav tsum tau sau nrog molten hlau.

Thaum casting twb nrhiav ib tug ib lub zog ntawm nws muaj peev xwm yuav cov tshem tawm hlau rods. Qhov no tom qab tswj lub extraction ntawm qhov kawg castings ntawm lub rods vim lub thawj ntawm siab rau lawv los ntawm lub solidifying hlau.

Tom qab lub casting tau txias mus rau cov yam kub, hlau pwm yuav tau qhib. Rau ntawm no theem lub rho hlau rods, thiab cov casting raug tshem tawm los ntawm cov pwm. Xuab zeb tuav khob qhov rooj tawm, profits, risers thiab runners yog txiav thiab manufactured khoom zoo tswj, tom qab uas tag nrho cov txheej txheem yuav tau rov qab.

Ua ntej zus tau tej cov tshiab cam khwb cia ua tib zoo soj ntsuam parting dav hlau thiab tej cov pwm. Lub refractory muaj pes tsawg leeg yog thov ib zaug los yog ob zaug ib ua haujlwm, tab sis nyob rau hauv cov ntaub ntawv ntawm tshwv nws los ntawm qhov ua hauj lwm nto txheej yog tsim nyog los.
Coquille yuav tsum tau coj mus rau kev khiav hauj lwm kub dua li nws cools thaum lub sij hawm lub sij hawm kom txog thaum lub cam khwb cia yog muab tshem tawm. Yog hais tias cov khoom yog ib tug nyias-walled, zoo cools; yog hais tias tus manufactured casting yog sufficiently loj heev, lub ntsawj txias pwm tej zaum yuav sov txog li kom saum toj no cov ua hauj lwm kub, thiab ces siv tshwj xeeb muab rau lub txias system, yog li ntawd ua ntej lub tom ntej no casting zoo yuav lawm txias.

Tuag casting tsis koom nrog tej complex thiab lub sij hawm ntev ntawm kev txiav txim, xa tus txheej txheem ntawm txias casting mus rau lub yam kub. Feem ntau cov hauj lwm yuav tsum tau ua nyob rau hauv ib tug tsis siv neeg yam lub tshuab, uas yog ib tug ntawm cov tseem ceeb kom zoo dua txog cov txheej txheem, tab sis lub tseem ceeb tshaj plaws - uas cov hlau pwm tsis yog ib tug ib tug-off daim ntawv.