Cov txiaj ntsig ntawm cov mineral casting marble txaj machining center yog dab tsi?
Cov khoom siv ua los ntawm cov pob zeb (cov granite ua los ntawm tib neeg aka resin concrete) tau txais kev lees paub dav hauv kev lag luam tshuab rau ntau tshaj 30 xyoo ua cov khoom siv hauv tsev.
Raws li cov ntaub ntawv txheeb cais, nyob hauv Tebchaws Europe, ib ntawm txhua 10 lub tshuab siv cov khoom siv ua los ntawm cov pob zeb ua lub txaj. Txawm li cas los xij, kev siv cov kev paub tsis raug, cov ntaub ntawv tsis tiav lossis tsis raug tuaj yeem ua rau muaj kev tsis ntseeg thiab kev ntxub ntxaug rau Cov Khoom Siv Ua Los Ntawm Cov Pob Zeb. Yog li ntawd, thaum ua cov khoom siv tshiab, nws yog qhov tsim nyog los tshuaj xyuas qhov zoo thiab qhov tsis zoo ntawm cov khoom siv ua los ntawm cov pob zeb thiab piv rau lwm cov ntaub ntawv.
Lub hauv paus ntawm cov tshuab siv hauv kev tsim kho feem ntau muab faib ua cov hlau cam khwb cia, cov khoom siv ua los ntawm cov pob zeb (polymer thiab/lossis cov pob zeb ua los ntawm cov pob zeb reactive), cov qauv hlau/welded (grouting/non-grouting) thiab cov pob zeb ntuj (xws li granite). Txhua yam khoom siv muaj nws tus yam ntxwv, thiab tsis muaj cov khoom siv zoo meej. Tsuas yog los ntawm kev tshuaj xyuas qhov zoo thiab qhov tsis zoo ntawm cov khoom siv raws li cov kev cai tshwj xeeb, cov khoom siv zoo tagnrho thiaj li xaiv tau.
Ob lub luag haujlwm tseem ceeb ntawm cov ntaub ntawv qauv - lav qhov geometry, qhov chaw thiab kev nqus zog ntawm cov khoom, feem ntau muab cov kev cai ua haujlwm (static, dynamic thiab thermal performance), cov kev cai ua haujlwm / qauv (qhov tseeb, qhov hnyav, phab ntsa tuab, yooj yim ntawm cov hlau qhia) rau kev teeb tsa cov ntaub ntawv, kev ncig xov xwm, kev thauj mus los) thiab cov nqi xav tau (tus nqi, ntau npaum li cas, muaj, cov yam ntxwv ntawm lub kaw lus).
I. Cov kev cai ua tau zoo rau cov ntaub ntawv tsim kho
1. Cov yam ntxwv zoo li qub
Cov qauv rau kev ntsuas cov khoom zoo li qub ntawm lub hauv paus feem ntau yog qhov tawv ntawm cov khoom siv - qhov tsawg kawg nkaus deformation nyob rau hauv lub nra hnyav, es tsis yog lub zog siab. Rau qhov static elastic deformation, cov khoom siv minerals tuaj yeem xav txog tias yog cov khoom siv isotropic homogeneous uas ua raws li Hooke txoj cai.
Qhov ceev thiab elastic modulus ntawm cov khoom siv castings yog 1/3 ntawm cov hlau cam khwb cia. Vim tias cov khoom siv castings thiab cov hlau cam khwb cia muaj tib lub zog tshwj xeeb, nyob rau hauv tib qhov hnyav, qhov rigidity ntawm cov hlau castings thiab cov khoom siv castings yog tib yam yam tsis xav txog qhov cuam tshuam ntawm cov duab. Hauv ntau qhov xwm txheej, qhov tsim phab ntsa tuab ntawm cov khoom siv castings feem ntau yog 3 zaug ntawm cov hlau castings, thiab qhov kev tsim no yuav tsis ua rau muaj teeb meem hauv cov khoom siv kho tshuab ntawm cov khoom lossis casting. Cov khoom siv castings yog tsim rau kev ua haujlwm hauv cov chaw ib puag ncig uas nqa lub siab (piv txwv li txaj, txhawb nqa, kem) thiab tsis haum rau cov phab ntsa nyias thiab / lossis cov thav duab me me (piv txwv li rooj, pallets, hloov cuab yeej, carriages, spindle txhawb nqa). Qhov hnyav ntawm cov khoom siv feem ntau yog txwv los ntawm cov khoom siv ntawm cov chaw tsim khoom casting, thiab cov khoom siv castings saum toj no 15 tons feem ntau tsis tshua muaj.
2. Cov yam ntxwv dynamic
Qhov ceev ntawm kev tig thiab/lossis kev nrawm ntawm lub qag ntau dua, qhov tseem ceeb dua rau kev ua haujlwm ntawm lub tshuab. Kev tso chaw sai, kev hloov cov cuab yeej sai, thiab kev pub ceev ceev txuas ntxiv ua kom muaj zog ntawm lub tshuab resonance thiab dynamic excitation ntawm cov khoom siv hauv tshuab. Ntxiv nrog rau qhov tsim ntawm qhov ntev ntawm cov khoom, qhov deflection, kev faib tawm ntawm pawg, thiab dynamic stiffness ntawm cov khoom raug cuam tshuam los ntawm cov khoom siv damping ntawm cov khoom.
Kev siv cov khoom siv ua los ntawm cov pob zeb muaj txiaj ntsig zoo rau cov teeb meem no. Vim tias nws nqus tau kev co 10 npaug zoo dua li cov hlau cam khwb ib txwm muaj, nws tuaj yeem txo qhov amplitude thiab zaus ntuj tsim.
Hauv kev ua haujlwm machining xws li machining, nws tuaj yeem coj qhov tseeb dua, qhov zoo dua ntawm qhov chaw, thiab lub neej ntev dua. Tib lub sijhawm, hais txog kev cuam tshuam suab nrov, cov khoom siv castings kuj ua tau zoo los ntawm kev sib piv thiab kev txheeb xyuas ntawm cov hauv paus, kev sib kis castings thiab cov khoom siv ntawm cov ntaub ntawv sib txawv rau cov cav loj thiab centrifuges. Raws li kev tshuaj xyuas suab nrov, cov khoom siv casting tuaj yeem ua tiav qhov kev txo qis hauv zos ntawm 20% hauv qib suab nrov.
3. Cov khoom siv thermal
Cov kws tshaj lij kwv yees tias kwv yees li 80% ntawm cov cuab yeej siv tshuab ua haujlwm tsis zoo yog los ntawm cov teebmeem thermal. Kev cuam tshuam ntawm cov txheej txheem xws li cov cua sov sab hauv lossis sab nraud, kev ua kom sov ua ntej, kev hloov pauv workpieces, thiab lwm yam yog txhua yam ua rau muaj kev hloov pauv thermal. Yuav kom xaiv tau cov khoom zoo tshaj plaws, nws yog qhov tsim nyog los qhia meej txog cov khoom siv uas yuav tsum tau ua. Qhov kub tshwj xeeb siab thiab kev ua kom sov qis ua rau cov khoom siv castings muaj qhov kub zoo rau kev cuam tshuam ntawm qhov kub thiab txias ib ntus (xws li kev hloov pauv workpieces) thiab kev hloov pauv ntawm qhov kub thiab txias. Yog tias xav tau kev ua kom sov sai sai xws li lub txaj hlau lossis qhov kub ntawm lub txaj raug txwv, cov khoom siv cua sov lossis txias tuaj yeem pov ncaj qha rau hauv cov khoom siv castings kom tswj tau qhov kub thiab txias. Kev siv hom khoom siv them nyiaj kub no tuaj yeem txo qhov kev hloov pauv los ntawm qhov kub thiab txias, uas pab txhim kho qhov tseeb ntawm tus nqi tsim nyog.
II. Cov kev cai ua haujlwm thiab cov qauv
Kev ncaj ncees yog ib qho tshwj xeeb uas ua rau cov khoom siv hlau sib txawv ntawm lwm cov khoom siv hlau. Qhov kub siab tshaj plaws rau cov hlau yog 45°C, thiab ua ke nrog cov pwm thiab cov cuab yeej ua haujlwm siab, cov khoom thiab cov hlau tuaj yeem sib xyaw ua ke.
Cov txheej txheem rov ua dua tshiab kuj tseem siv tau rau ntawm cov pob zeb ua los ntawm cov pob zeb, ua rau muaj kev teeb tsa thiab cov ntsia hlau uas tsis tas yuav siv tshuab. Ib yam li lwm cov ntaub ntawv tseem ceeb, cov pob zeb ua los ntawm cov pob zeb yog raws li cov cai tsim qauv tshwj xeeb. Qhov tuab ntawm phab ntsa, cov khoom siv thauj khoom, cov ntxig tav, cov txheej txheem thauj khoom thiab tshem tawm txhua yam txawv ntawm lwm cov ntaub ntawv mus rau qee qhov, thiab yuav tsum tau xav txog ua ntej thaum tsim qauv.
III. Cov nqi yuav tsum tau ua
Txawm hais tias nws yog ib qho tseem ceeb uas yuav tsum xav txog los ntawm qhov kev xav txog kev siv tshuab, kev siv nyiaj tsim nyog tau qhia txog nws qhov tseem ceeb. Kev siv cov khoom siv ua los ntawm cov pob zeb ua rau cov engineers txuag tau ntau yam kev tsim khoom thiab kev ua haujlwm. Ntxiv rau kev txuag cov nqi machining, casting, kev sib dhos zaum kawg, thiab kev nce nqi logistics (kev khaws khoom thiab kev thauj mus los) raug txo qis raws li. Xav txog qhov ua haujlwm siab ntawm cov khoom siv ua los ntawm cov pob zeb ua, nws yuav tsum tau saib ua ib qho project tag nrho. Qhov tseeb, nws yog qhov tsim nyog dua los ua qhov sib piv tus nqi thaum lub hauv paus tau teeb tsa lossis ua ntej teeb tsa. Tus nqi pib siab yog tus nqi ntawm cov pwm casting thiab cov cuab yeej, tab sis tus nqi no tuaj yeem diluted hauv kev siv mus sij hawm ntev (500-1000 daim / pwm hlau), thiab kev siv txhua xyoo yog li 10-15 daim.
IV. Scope ntawm kev siv
Ua ib yam khoom siv hauv kev tsim kho, cov khoom siv ua los ntawm cov pob zeb yeej ib txwm hloov cov khoom siv hauv kev tsim kho ib txwm muaj, thiab qhov tseem ceeb rau nws txoj kev loj hlob sai yog nyob rau hauv cov khoom siv ua los ntawm cov pob zeb, cov pwm, thiab cov qauv sib txuas ruaj khov. Tam sim no, cov khoom siv ua los ntawm cov pob zeb tau siv dav hauv ntau lub tshuab cuab yeej xws li cov tshuab sib tsoo thiab kev siv tshuab ceev ceev. Cov chaw tsim khoom siv tshuab sib tsoo tau ua cov thawj coj hauv kev lag luam cuab yeej siv cov khoom siv ua los ntawm cov pob zeb rau cov txaj tshuab. Piv txwv li, cov tuam txhab nto moo thoob ntiaj teb xws li ABA z&b, Bahmler, Jung, Mikrosa, Schaudt, Stude, thiab lwm yam tau txais txiaj ntsig los ntawm kev damping, thermal inertia thiab kev ncaj ncees ntawm cov khoom siv ua los ntawm cov pob zeb kom tau txais qhov tseeb siab thiab qhov zoo ntawm qhov chaw hauv cov txheej txheem sib tsoo.
Nrog rau qhov nce ntxiv ntawm cov khoom siv dynamic, cov khoom siv casting mineral kuj tau nyiam los ntawm cov tuam txhab ua lag luam thoob ntiaj teb hauv kev sib tsoo cuab yeej. Lub txaj casting mineral muaj kev ruaj khov zoo heev thiab tuaj yeem tshem tawm lub zog los ntawm kev ua kom nrawm ntawm lub cev muaj zog linear. Tib lub sijhawm, kev sib xyaw ua ke ntawm kev ua tau zoo ntawm kev nqus kev co thiab lub cev muaj zog linear tuaj yeem txhim kho qhov zoo ntawm qhov chaw ua haujlwm thiab lub neej ua haujlwm ntawm lub log sib tsoo.
Lub sijhawm tshaj tawm: Lub Ib Hlis-18-2022