Kev txhais lus ntawm plaub qhov tseem ceeb thev naus laus zis qauv tsim, teeb meem kev vibration, daim ntawv thov txheej, thiab nchuav. Txuag rau siv tom qab.

Jun 28, 2024

Tso lus

Poob ua npuas ncauj casting tshuab, raws li ib tug nyob ze-static forming txoj kev rau castings, tau tsim sai heev nyob rau hauv xyoo tas los no. Nyob rau hauv txawv teb chaws, vim kev ua tiav thiab commissioning ntawm mechanized thiab automated poob ua npuas ncauj casting ntau lawm kab thiab cov nyiaj txiag tseem ceeb thiab kev pab cuam generated, lub poob ua npuas ncauj casting tshuab tau qhia muaj zog vitality.

Txawm hais tias daim ntawv thov ntawm cov tshuab ua npuas ncauj ploj hauv kuv lub tebchaws tau ua haujlwm qeeb qee lub sijhawm dhau los, nws tau tsim kho sai hauv xyoo tas los no. Tshwj xeeb tshaj yog vim muaj kev nqis peev tsawg hauv cov khoom siv ua npuas ncauj ploj thiab cov txheej txheem luv luv, ntau lub tuam txhab me me thiab nruab nrab ntawm cov tuam txhab tsim khoom tau nce siv cov thev naus laus zis no. Txawm li cas los xij, qee lub tuam txhab tsis ua tib zoo saib qee qhov teeb meem kev ua haujlwm, ua rau qee qhov teeb meem thaum lub sijhawm tsim khoom, uas muaj kev cuam tshuam zoo rau qhov zoo ntawm castings.

1. Qauv ua

Hauv cov txheej txheem ua npuas dej ploj, kev tsim qauv yog qhov txuas tseem ceeb heev. Kev xaiv ntawm EPS raw khoom, qauv ua tshuab, qhov tseeb qhov tseeb, qauv ntom ntom, tswj cov khoom xws li cov khoom pyrolysis thaum lub sij hawm nchuav yog qhov yuav tsum tau ua ua ntej kom tau txais cov khoom zoo. Tam sim no muaj ntau txoj hauv kev los tsim cov qauv rau cov lag luam me thiab nruab nrab:

(1) Txiav thiab sib txuas los ntawm ntim EPS nplooj ntawv.

(2) Ua koj tus kheej pwm thiab tso siab rau cov chaw tsim khoom sab nraud los ua lawv.

(3) Ua koj tus kheej yooj yim pre-forming khoom.

Thaum ua cov qauv siv cov qauv saum toj no, muaj ib qho tshwm sim uas tsis tau them sai sai rau qhov kev hloov ntawm qhov ntom ntawm cov qauv. Tshwj xeeb tshaj yog thaum tus qauv tau tso siab rau lub Hoobkas sab nraud rau kev ua haujlwm, cov dej noo tsis yooj yim los tswj. Nws feem ntau tshwm sim tias molten hlau txau rov qab los ntawm lub qhov rooj thaum lub sij hawm pouring, los yog lub casting muaj txias rwb thaiv tsev, tsis txaus pouring, thiab lwm yam. Vim li no, qhov ceev ntawm tus qauv yuav tsum tau kuaj xyuas thaum lub sijhawm tsim khoom, thiab lub sijhawm ziab ntawm cov qauv yuav tsum tau nce ntxiv. Tom qab EPS hlaws raug xaiv los ntawm cov txheej txheem kev sim, cov khoom siv raw khoom tsis tuaj yeem hloov pauv ntawm qhov xav tau. Cov cuab yeej ntsuas yuav tsum tau siv los tswj cov hlaws dai thaum ua ntej tsim khoom. particle ntom, hloov txoj kev tswj cov hlaws ntom ntom raws li kev siv phau ntawv; tom qab siv cov txheej txheem saum toj no, qhov teeb meem tau daws.

2. Teeb meem nrog kev co

Vibration compaction yog ib qho ntawm plaub qhov tseem ceeb thev naus laus zis ntawm ploj ua npuas ncauj casting. Kev ua haujlwm ntawm kev vibration yog ua rau cov xuab zeb qhuav ntws mus rau hauv lub thawv xuab zeb, txhim kho qhov ntim thiab ntom ntawm cov xuab zeb qhuav, thiab tiv thaiv kev ua haujlwm tsis zoo. Thaum vibrating cov xuab zeb qhuav los sau, qhov xwm txheej zoo tshaj plaws yog tias cov xuab zeb qhuav ntws mus rau hauv ib qho kev txiav txim siab thaum lub sij hawm vibration txheej txheem, thiab tusyees sau tag nrho cov seem ntawm cov qauv tsis deforming tus qauv, yog li ntawd cov xuab zeb molding nyob rau hauv lub thawv xuab zeb tau txais ntau dua. thiab ntau uniform filling ceev.

Qhov poob ua npuas ncauj casting vibration ntxhuav ntawm cov lag luam me thiab nruab nrab feem ntau yog cov khoom siv ua tus kheej. Thaum vibrating, qhov tshwm sim feem ntau yog vim kev ua haujlwm tsis zoo ntawm kev co, ua rau cov qauv deformation, tawg ntawm cov xim txheej, thiab lwm yam, yog li ua rau cov khoom tsis xws luag. Qee lub rooj vibrating lawv tus kheej yog qhov yooj yim rau deformation vim lub zog excitation ntau dhau thiab tsis sib npaug polarizing blocks ntawm tib pab pawg ntawm cov motors. Txog qhov kawg no, lub zog excitation, amplitude thiab vibration lub sij hawm yuav tsum tau hloov kho; rau castings nrog qhov loj me thiab cov qauv yooj yim, qhov kev vibration peb-dimensional ntawm rau lub cev muaj zog tuaj yeem hloov mus rau ntsug lossis kab rov tav kev vibration ntawm dual motors; tshwj xeeb tshaj yog cov cuab yeej ntsuas kev vibration Txhua qhov ntsuas ntawm lub platform raug sim thiab hloov kho kom tau raws li cov qauv tsim.

3. Muaj teeb meem nrog kev siv cov xim

Hauv cov txheej txheem ua npuas dej ploj, kev siv cov txheej txheem tuaj yeem txhim kho qhov nruj thiab lub zog ntawm cov qauv, cais cov qauv EPS ntawm cov pwm, thiab tiv thaiv cov xuab zeb adhesion thiab pwm tawg; Thaum lub sij hawm casting txheej txheem, cov khoom kub-kub decomposition ntawm cov qauv raug tso cai tawm los ntawm txheej txheej raws sijhawm thiab du. Coatings feem ntau yog tsim los ntawm cov ntaub ntawv refractory, binders, suspending agents, thiab lwm yam. Qhov kev faib ua feem ntawm txhua yam muaj kev cuam tshuam zoo rau kev ua haujlwm ntawm txheej.

Txawm li cas los xij, qee lub tuam txhab tsis paub meej txog lub luag haujlwm ntawm cov txheej txheem txheej txheej, thiab lawv arbitrarily hloov cov txheej txheem txheej txheem thiab kev npaj, los yog txuas ntxiv npaj thiab siv nws vim tsis muaj ib qho kev tivthaiv, ua rau muaj kev poob qis hauv txheej txheej. ; qee lub tuam txhab muaj teeb meem hauv cov qauv dipping thiab ziab txheej txheem. Qee lub sij hawm txhawm rau ua kom lub sijhawm luv luv, cov txheej txheej tom ntej yog nqa tawm ua ntej thawj txheej qhuav, ua rau sab hauv ntawm tus qauv tsis tau qhuav tag thiab muaj cov dej noo; nyob rau lub caij ntuj sov, tsuas yog siv txoj kev ziab kom qhuav, thiab muaj qhov tsis ruaj khov hauv cov txheej txheem, uas ua rau cov tshuaj tsuag rov qab los yog qhov pores raug tsim thaum lub sij hawm nchuav; lub txheej thickness tsis hloov raws li qhov sib txawv castings, pouring kub thiab molten hlau siab lub taub hau.

Tsuas yog los ntawm kev saib xyuas thiab daws cov teeb meem saum toj no thiab ua haujlwm ntawm cov ntsiab lus ntawm kev ua haujlwm yuav tsis muaj qhov tsis xws luag los ntawm txheej txheej.

4. Muaj teeb meem hauv cov txheej txheem pouring

Thaum lub sij hawm pouring ntawm poob ua npuas ncauj casting, thiaj li yuav tso pa roj thiab qauv vaporization residue, lub sprue yuav tsum muaj qhov siab txaus kom lub molten hlau muaj txaus siab lub taub hau los thawb lub molten hlau ntws mus sau cov pwm stably thiab sai, kom ntseeg tau tias. qhov saum npoo ntawm casting yog tiav thiab meej. Hauv kev xyaum, qee lub tuam txhab siv lub khob qub sprue rau xuab zeb casting. Vim nws qhov me me, cov kua dej tsis ruaj khov yog qhov ua rau cov khoom tawg. Txhawm rau kom ntseeg tau tias muaj dej txaus los ua kom cov txheej txheem nchuav ntws thiab tsim kom muaj lub siab pib sai, siv lub khob loj dua tuaj yeem siv tau; lub sprue yog ua hollow los txo cov roj rov qab-txhaj tshuaj thiab nce lub siab thaum pib ntawm pouring. taub hau.

Poob ua npuas ncauj casting siv tsis zoo siab qhuav xuab zeb vibration molding. Thaum molded siv txoj kev no, lub zog ntawm pwm yog ntau dua li lub zog ntawm cov xuab zeb ntsuab. Kev siv lub siab tsis zoo tuaj yeem txhim kho kev ruaj ntseg ntawm cov pwm pwm thiab tshem tawm cov khoom lag luam pyrolysis thiab gasification sai thaum cov pwm vaporized. Txawm li cas los xij, thaum lub sijhawm tsim khoom, qee qhov chaw tsim khoom tsuas yog them sai sai rau kev saib xyuas qhov tsis zoo ntawm qhov chaw ua ntej nchuav, tab sis feem ntau tsis quav ntsej qhov kev hloov pauv hauv qhov tsis zoo ntawm cov txheej txheem pouring, uas ua rau muaj qhov tsis xws luag. Qhov teeb meem no tuaj yeem daws tau zoo los ntawm kev kho qhov tsis zoo thaum lub sij hawm nchuav txheej txheem raws li qhov loj ntawm cov casting thiab cov khoom ntawm pyrolysis.

Txoj kev siv ntau tshaj plaws yog xuab zeb casting, ua raws li cov txheej txheem tshwj xeeb, xws li hlau pwm casting, peev casting, plaster pwm casting, thiab lwm yam. Sand casting tuaj yeem muab faib ua av nplaum xuab zeb pwm, organic binder xuab zeb pwm, resin self-hardening. xuab zeb pwm, poob ua npuas ncauj pwm, thiab lwm yam.

Lub hauv paus ntsiab lus rau xaiv txoj kev casting:

1. Xuab zeb casting yog nyiam. Qhov laj thawj tseem ceeb yog tias piv nrog rau lwm txoj hauv kev casting, xuab zeb casting muaj tus nqi qis, cov txheej txheem tsim khoom yooj yim thiab lub voj voog luv luv. Thaum hom ntub dej tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, xav txog kev siv cov av nplaum xuab zeb ntawm cov xuab zeb qhuav, hom xuab zeb qhuav lossis lwm yam xuab zeb. Qhov hnyav ntawm castings ua los ntawm av nplaum ntsuab xuab zeb casting tuaj yeem muaj li ntawm ob peb kilograms mus rau kaum tawm kilograms, thaum lub castings ua los ntawm av nplaum qhuav pwm tuaj yeem hnyav kaum tawm tons.

2 Cov txheej txheem casting yuav tsum tsim nyog rau cov khoom tsim. Casting txoj kev xws li tsis tshua muaj siab casting, tuag casting, thiab centrifugal casting tsuas yog tsim rau huab hwm coj ntau lawm vim cov khoom kim heev thiab pwm.

3. Cov qauv qauv yuav tsum tsim nyog rau lub Hoobkas.

Piv txwv li, hauv kev tsim cov castings xws li cov cuab yeej siv lub txaj loj, cov txheej txheem molding feem ntau yog siv, tsis ua cov qauv thiab cov thawv xuab zeb, thiab cov tub ntxhais yog sib sau ua ke hauv lub qhov; thaum lwm lub Hoobkas siv cov xuab zeb moulding txoj kev los ua cov qauv. Cov tuam txhab sib txawv muaj cov kev tsim khoom sib txawv (nrog rau cov khoom siv, qhov chaw, cov neeg ua haujlwm zoo, thiab lwm yam), cov cwj pwm tsim khoom, thiab kev paub ntau ntxiv. Raws li cov xwm txheej no, peb yuav tsum xav txog yam khoom twg tsim nyog thiab cov khoom lag luam twg tsis haum (lossis tsis tuaj yeem) txiav txim siab

4. Cov kev cai precision thiab cov nqi ntawm cov castings yuav tsum tau muab rau hauv kev txiav txim siab.

Kev tsis zoo thiab kev tiv thaiv hauv pwm kev kho cua sov

1. Muaj qhov muag muag ntawm cov pwm nto

Muaj cov pob muag muag ntawm cov pwm tom qab kev kho cua sov, uas yuav cuam tshuam qhov hnav tsis kam ntawm pwm thiab txo qhov kev pab cuam lub neej ntawm pwm.

(1) Ua rau

Muaj oxide nplais, xeb me ntsis thiab ib nrab decarburization ntawm cov pwm ua ntej kev kho cua sov. Tom qab quenching thiab cua sov, qhov cua txias thiab quenching nruab nrab yog xaiv tsis raug, thiab muaj ntau dhau impurities lossis kev laus hauv qhov nruab nrab quenching.

(2) Kev tiv thaiv kev tiv thaiv

Oxide nplai thiab xeb yuav tsum tau muab tshem tawm ua ntej kev kho cua sov ntawm pwm. Qhov saum npoo ntawm cov pwm yuav tsum raug tiv thaiv kom zoo thaum quenching thiab cua sov. Lub tshuab nqus tsev hluav taws xob, lub qhov cub ntsev da dej thiab cov cua sov cua sov yuav tsum tau siv rau cua sov kom ntau li ntau tau. Thaum txias tom qab quenching thiab cua sov, yuav tsum xaiv qhov nruab nrab cua txias uas tsim nyog, thiab cov cua txias nruab nrab yuav tsum tau lim ntau zaus los yog hloov tsis tu ncua.

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2. Cov qauv tsis zoo ntawm cov pwm ua ntej kev kho cua sov

Qhov kawg spheroidized qauv ntawm cov pwm yog ntxhib thiab tsis sib xws, lub spheroidization yog imperfect, thiab cov qauv muaj mesh-zoo li, siv-zoo li thiab chain-zoo li carbides, uas yuav ua rau cov pwm yuav tawg tom qab quenching thiab ua rau cov pwm yuav. ua xua.

(1) Ua rau

Tus qauv qub ntawm cov khoom siv hlau pwm muaj qhov hnyav carbide segregation. Cov txheej txheem forging tsis zoo, xws li siab kub forging cua sov, me me deformation, siab forging nres kub, qeeb txias tus nqi tom qab forging, thiab lwm yam, ua rau cov qauv forging ntxhib thiab muaj network, band thiab saw carbides, uas ua rau spheroidization annealing. nyuaj tshem tawm. Tsis zoo spheroidizing annealing txheej txheem, xws li siab dhau los yog qis heev annealing kub, luv isothermal annealing lub sij hawm, thiab lwm yam, yuav ua rau uneven spheroidizing annealing qauv los yog tsis zoo spheroidization.

(2) Kev tiv thaiv kev tiv thaiv

Feem ntau, cov khoom zoo pwm hlau yuav tsum raug xaiv kom ntau li ntau tau raws li kev ua haujlwm ntawm pwm, ntau lawm batch loj thiab cov khoom toughening ntawm cov khoom nws tus kheej. Txhim kho cov txheej txheem forging los yog siv normalizing npaj kev kho cua sov kom tshem tawm cov inhomogeneity ntawm network thiab saw carbides thiab carbides nyob rau hauv raw cov ntaub ntawv.

High-carbon pwm steels nrog hnyav carbide segregation uas tsis tuaj yeem forged tuaj yeem raug rau cov khoom siv kho kom zoo nkauj kho cua sov. Txhawm rau tsim kom raug spheroidizing annealing txheej txheem specifications rau forged pwm dawb paug, quenching thiab tempering tshav kub kev kho mob thiab ceev uniform spheroidizing annealing yuav siv tau. Nruab lub qhov cub kom tsim nyog los xyuas kom meej qhov sib xws ntawm qhov kub thiab txias ntawm pwm puag hauv qhov cub.

3. Cov kab nrib pleb tshwm sim hauv cov pwm

Cov kab nrib pleb hauv pwm tom qab quenching yog qhov teeb meem loj tshaj plaws hauv cov txheej txheem kev kho cua sov ntawm cov pwm, uas yuav ua rau cov pwm ua tiav thiab ua rau poob zoo rau kev tsim khoom thiab kev lag luam.

(1) Ua rau muaj tshwm sim

Cov khoom siv pwm muaj kev sib koom ua ke ntawm carbide hnyav. Muaj cov tshuab ua haujlwm lossis cov yas txias deformation ntxhov siab hauv pwm. Kev kho cua sov tsis zoo (ua kom sov lossis txias sai heev, xaiv qhov tsis zoo ntawm quenching txias nruab nrab, txias txias qis, txias lub sij hawm ntev, thiab lwm yam).

Cov pwm muaj cov duab tsis sib xws, cov tuab tsis sib xws, cov kaum ntse ntse thiab cov xov lub qhov, uas ua rau muaj kev ntxhov siab ntau dhau thiab cov qauv kev ntxhov siab. quenching cua kub kub yog siab dhau los ua rau overheating lossis overburning. Lub tempering tom qab quenching tsis raws sij hawm los yog tempering thiab kub preservation lub sij hawm tsis txaus. Thaum lub sij hawm rework, quenching thiab cua sov, cov khoom yog rhuab thiab quenched dua tsis muaj intermediate annealing. Thaum tshav kub kub kho, kev sib tsoo tsis raug. Thaum lub sij hawm EDM tom qab kev kho cua sov, muaj zog tensile siab thiab microcracks nyob rau hauv hardened txheej.

(2) Kev tiv thaiv kev tiv thaiv

Strictly control the inherent quality of the mold raw materials, improve the forging and spheroidizing annealing process, eliminate network, ribbon, and chain carbides, and improve the uniformity of the spheroidized structure. After mechanical processing or cold plastic deformation, the mold should be stress-relieved annealed (>600 degree) thiab ces rhuab thiab quenched. Rau cov pwm uas muaj cov duab nyuaj, asbestos yuav tsum tau siv los ntsaws cov xov qhov, qhwv cov ntu txaus ntshai thiab cov phab ntsa nyias nyias, thiab siv cov graded quenching lossis isothermal quenching.

Annealing los yog high-temperature tempering yuav tsum tau thaum reworking los yog refurbishing pwm. Preheating yuav tsum tau siv thaum lub sij hawm quenching thiab cua sov, precooling ntsuas yuav tsum tau coj thaum lub sij hawm txias, thiab tsim nyog quenching media yuav tsum tau xaiv. Lub quenching cua sov kub thiab lub sij hawm yuav tsum nruj me ntsis tswj kom tsis txhob pwm los ntawm overheating thiab overburning.

Cov pwm yuav tsum tau tempered nyob rau hauv lub sij hawm tom qab quenching, thiab lub sij hawm txuag tshav kub yuav tsum txaus. High-alloy complex pwm yuav tsum tau tempered 2-3 zaug. Xaiv txoj kev sib tsoo txoj cai thiab txoj kev sib tsoo lub log. Txhim kho pwm EDM cov txheej txheem thiab ua kom muaj kev ntxhov siab thiab tempering.

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4. Cov qauv ntawm cov pwm ua ntxhib tom qab quenching

Cov qauv ntxhib ntawm cov pwm tom qab quenching yuav cuam tshuam rau cov khoom ntawm cov pwm. Thaum siv, pwm yuav tawg, cuam tshuam rau lub neej kev pab cuam ntawm pwm.

(1) Ua rau muaj tshwm sim

Pwm steel cov ntaub ntawv tsis meej pem, thiab qhov tseeb steel quenching kub yog qis dua qhov yuav tsum tau quenching kub ntawm cov khoom pwm (xws li kho GCr15 steel li 3Cr2W8V steel). Qhov tseeb spheroidization txheej txheem tsis tau ua ua ntej cov hlau raug quenched, ua rau cov qauv tsis zoo spheroidization. Lub quenching cua sov kub yog siab dhau los yog lub sijhawm tuav ntev dhau lawm. Qhov chaw tsis raug rau hauv qhov cub yuav ua rau overheating ze ntawm cov electrodes los yog cov khoom cua sov. Rau cov pwm uas muaj kev hloov pauv loj, kev xaiv tsis raug ntawm quenching cua sov txheej txheem yuav ua rau overheating nyob rau hauv nyias seem thiab ntse fab.

(2) Kev tiv thaiv kev tiv thaiv

Cov ntaub ntawv hlau yuav tsum tau soj ntsuam nruj me ntsis ua ntej nkag mus rau hauv lub tsev rau khoom kom tsis txhob muaj kev tsis sib haum xeeb thiab tsis muaj kev tso kawm ntawm cov ntaub ntawv steel. Kev forging thiab spheroidizing annealing yuav tsum tau ua ua ntej pwm quenching kom muaj ib tug zoo spheroidizing qauv. Txhim kho pwm quenching thiab cua sov txheej txheem specifications thiab nruj me ntsis tswj quenching cua sov kub thiab tuav lub sij hawm. Tsis tu ncua xyuas thiab ntsuas qhov ntsuas kub ntsuas ntsuas ntsuas kom ntseeg tau tias cov cuab yeej ua haujlwm ib txwm muaj. Khaws ib qho kev ncua deb ntawm cov electrodes los yog cov khoom cua sov thaum cua sov hauv qhov cub.

Xa kev nug