Thaum tshav kub kub ua piv kev sib piv: Tuag cam khwb cia txhuas vs. cnc machined hlau

Lub hauv paus rau phau ntawv

Xaiv cov khoom zoo rau cov khoom uas yuav ua haujlwm rau nce qhov kub thiab txias yog qhov siab - cov ceg txheem ntseeg. Ob ntawm cov kev xaiv feem ntau yog tuag nrhav puab txhuas thiab cnc machined hlau. Txawm hais tias ob qho tib si tuaj yeem ua rau engineed los ua kom ntseeg tau nyob rau hauv kev xav tau ib puag ncig ib puag ncig, lawv tus cwj pwm nyob rau hauv tshav kub txawv heev. Kab lus no muaj nyob rau hauv {{qhov tob} Qhov tob, piv txwv li kev ntseeg siab, thiab cov ntaub ntawv uas muaj kev ntseeg siab, cov ntaub ntawv} Cov ntaub ntawv tsav tsheb rau koj qhov kev tsim qauv.

Peb txhais li cas los ntawm "tshav kub tiv taus"?

Hauv kev tsim kho cov lus, kub tawm tsam tsis yog ib qho khoom ntiag tug. Nws qhia txog qhov muaj peev xwm ntawm cov khoom siv thiab ib qho chaw tsim khoom los tswj hwm ua haujlwm thaum raug kub kom kub rau lub sijhawm. Ob peb ntu teeb meem teeb meem:

• Muab kev pab ntau tshaj plaws kub: Qhov ntsuas kub ib feem tuaj yeem ua siab ntev yam tsis muaj kev tsis tsim nyog ploj ntawm kev ua haujlwm txhua yam.

• Lub zog ua kom muaj zog: Yuav ua li cas tau cog lus / qhov kawg lub zog thiab hardness denade li kub nce.

• Muaj seem ruaj khov: tsis kam rau thermal distortion ntawm qis thermal nthuav dav thiab tawv txaus ntawm qhov kub.

• Creep tsis kam: muaj peev xwm tiv taus ntev - lub sij hawm, sij hawm {{depend depend {1} {1} {1} {{depend depend {1} {1} {1} {

• Oxidation thiab corrosion tus cwj pwm: yuav ua li cas txoj kev sib luag hauv huab cua thiab kev tshaj tawm thaum kub.

• Lub zog ua haujlwm thermal thiab cua sov: yuav ua li cas ceev ceev kub kis thiab ntau npaum li cas lub zog khaws cia ib qib ntawm kev hloov kub.

Tuag cam khwb cia txhuas: cov cua sov ua hauj hauv cov ntsiab lus teb

Tuag Aluminium Shines thaum koj xav tau lub teeb yuag nrog cov khoom siv hluav taws xob zoo heev thiab cov nyom, nyob rau hauv {}} duab geometry. Vim tias cov txheej txheem txhaj tshuaj Molten Alloy rau hauv cov hlau pwm ntawm kev kub ceev, koj tau txais cov phab ntsa nyias, cov yam ntxwv zoo, thiab ntau ntau lawm tus nqi. Los ntawm tshav kub -} Cov thermal kub conductivity pab txav cov tsev kub sai sai, cua sov, thiab cov khoom siv cua sov, thiab cov khoom cua sov.

Txawm li cas los xij, tib tus tuag casting txheej txheem tuaj yeem ua kom paub micro {{0} porosity thiab entrapped gases thiab enceting roj cua tshuab ntawm cov tshuab hluav taws xob ntxiv rau cov tshuab lossis cov khoom siv. Nquag tuag - Duab}}, A380-chav kawm), nyob ntawm geometry, thauj khoom, thiab cov khoom siv kev nyab xeeb. Saum toj no cov ntsuas kub, cov khoom nyiam lees txais lub zog thiab nkees ua rau poob qis, thiab thermal muag muag tuaj yeem dhau los ua qhov tseem ceeb.

Aluminium tus mob siab coefficient ntawm thermal expansion (~ 22-244 μ k) txhais tau tias tuag nrum li sov li kub thiab kub. Cov neeg tsim qauv feem ntau them nrog cov kev tshem tawm cov kev tshem tawm ntau dua, ua ke sib koom ua ke, lossis cov kab sib cais uas haum kev loj hlob. Ntawm sab zoo, Aluminium tsawg txo qis txo cov cua sov, yog li cov cua sov kom sov thiab txias sai sai {}} Qhov txiaj ntsig hauv kev ua kom muaj qhov sov.

Kev coj cwj pwm saum npoo av feem ntau yog feem ntau nyiam: ib qho khoom siv txhuas oxide zaj duab xis ib txwm muaj, kev ntsuas ntawm kev tiv thaiv. Anodizing thiab Ceramic Txheej Txheem tuaj yeem txhim kho oxidation tsis kam thiab emissality rau radiative txias, tab sis porosity yuav tsum tau xaiv kom zoo zoo mus txog lub voj voog.

CNC machined hlau: kub ua hauj hauv cov ntsiab lus teb

Hlau yog mus -} rau cov khoom siv tsev neeg thaum muaj zog} 1} stability lub zog thiab seem stability yog tsis {sib ceg. CNC Machining los ntawm bar lossis phaj Tshuag khaws cia micrerves wrought micructures uas feem ntau ua tau zoo dua ntawm kev nce siab dua li tuag cam mettration microstructures. Carbon thiab Alloy Steel khaws txhav thiab thauj khoom - Cov me nyuam muaj peev xwm txuas ntxiv ntawm lub qhov rai uas txuas ntxiv.

Thermal conductivity yog qhov qis dua qis dua txhuas, uas tuaj yeem yog ob npaug -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} yauv rab ntaj. Cov hlau tsis ua kom sov li sai sai sai li sai tau {2} Txawm li cas los ntshav rau hauv cov yam ntxwv uas nyob ze lossis cov sib tham. Nrog rau coefficient ntawm thermal expendansion ncig ~ 11-13 μm / mool, steel μ, cov khoom tseem ceeb rau kev ua kom zoo dua nyob rau hauv tshav kub, lossis cov khoom siv uas yuav tsum muaj kev tiv thaiv nruj.

Oxidation tus cwj pwm sib txawv rau qib. Cov pa roj carbon ntau hauv cov huab cua thaum lub siab tiv thaiv kub, yog li kev tiv thaiv txheej txheem tiv thaiv lossis tswj cov cua tsis raug. Stainless hlau daim ntawv chromium {{2} Cov yeeb yaj kiab nplua nuj fratedive uas tiv thaiv oxidation; Thaum tshav kub kub - Cov qhab nia pheej yig tuaj yeem zam kev pab ntau dua thaum muaj kev ntsuas ntsuas. Qhov twg corrosion thiab kub coexist- txheej txheem kav dej, thiab cov txheej txheem kub} stainless lossis tshwj xeeb cov hlau feem ntau nyob nrog.

Lub taub hau - rau -} lub taub hau: Tuag cam xim vs. cnc machined hlau

Thaum muab piv rau cov kub kub ua rau ncaj qha, CNC machined steel feem ntau outperforms tuag nrib pleb hauv kev pabcuam kub, lub zog ua kom muaj zog, thiab seem ruaj khov. Tuag cam khwb cia Aluminium yeej rau qhov hnyav, kub kis, thiab ua kom yooj yim, thiab cov net {{1} ge} tus phooj ywg geometries. Qhov kev xaiv tau zoo khawm ntawm siv rooj plaub, tsis yog ib qho khoom xwb.

Kev Lag Luam Tseem Ceeb - Offs suav nrog:

• Kev Pab Cuam Tshuam Kub Tshaj: Hlau feem ntau txhawb cov kev hloov pauv ntau dua yam tsis muaj lub zog loj lossis tawv tawv.

• Strength retention: Steels-especially alloyed or heat-treated-retain mechanical properties better as temperature rises.

• Kev nthuav dav thermal: steel qis CTE CTE txo qis kev loj hlob thiab kev pheej hmoo kev pheej hmoo; Aluminium hlob zoo dua thiab tej zaum yuav xav tau kev pab tsim qauv.

• Thermal conductivity: Txhuas kis tau thiab ua kom sov sai; Steel steel zos cov cua sov thiab sov sov uas nyob ib sab tau qeeb dua.

• Nyhav thiab inertia: Txhuas yog ~ 1/3 qhov ceev ntawm cov hlau, ua rau cov qauv sib zog thiab cov lus teb nrawm dua.

• Tsim thiab nqi: Tuag casting ntxim nyiam ntawm ntim thiab complexity; CNC Machining ci nyob rau hauv precision thiab cov khoom siv.

Daim Ntawv Thov Kev Qhuab Qhia Los Ntawm Kev Ua Haujlwm Kub

Hauv qab no yog ib phau ntawv qhia txog Pragmatic. Nco ntsoov paub meej nrog cov ntaub ntawv alloy tshwj xeeb, kev kho cua sov, thiab tsim qauv kev nyab xeeb:

• Up to ~120℃: Die cast aluminum is highly attractive for housings, brackets, and heat-spreading components; Tsawg npaum pawg thiab kev ua haujlwm zoo tau txais txiaj ntsig.

• ~ 120-200 Degree: Tuag Cam Khwb Cia Aluminium tseem siv tau ntau qhov chaw thiab cov cua sov yog tias tsim nyog; Xav txog cov tav thiab cov fillets dav.

• ~ 200-400 degree: CNC machined cov hlau, suav nrog cov hlau stainless lossis alloy hlau, dhau los ua kev nyab xeeb rau cov qauv hauv qab kev thauj khoom.

• Saum toj no ~ 400 degree: tshav kub kub - Cov hlau tiv taus cov hlau lossis alloks- kub stainless cov qib) feem ntau pom zoo. Aluminium cov cuab yeej kho tshuab ua rau muaj kev txwv tsis meej.

Cov tswv yim tsim qauv los txhim kho lub tshuab cua kub tiv taus kub

Kev xaiv cov khoom lag luam tsuas yog ib qib nkaus xwb. Geometry, tiav, thiab koom nrog cov tswv yim tuaj yeem ncab lub hnab ntawv ua haujlwm:

• Ribs, gussets, thiab fillets: ntim seem txhav thiab txo cov kev ntxhov siab, tshwj xeeb tshaj yog hauv cov vaj tawv.

• Tus thawj coj tsim: Zam cov ntse thiab nyias tus thawj coj uas yuav muag muag lossis cuam tshuam kub.

• Kev siv hluav taws xob thermal: siv slots, stugoffs, lossis tsawg {{{{-} Cov chaw sib txuam hauv cov sib tham sib txawv hauv cov sib tw hlau.

• Cov tsho hlau: Ceramic, Anodic, lossis siab -} Emissivity cov xim ntawm txhuas; Siab -} temp xim los yog diffusion co co hlau.

• Fasteners thiab pob qij txha: cia rau kev nthuav dav ntau; Sib tov cov ntaub ntawv yuav tsum muaj kev sib xyaw ua ke nrog cov ntsej muag nrog lub ntsej muag.

• Txoj Kev Yeem Cov Kab: Rau Tuag Nrum Qhov Chaw, Kev Ua Vaj Tse Txo kom tsawg, txhim kho - kub ua tau zoo.

Tus nqi, kev tsim khoom, thiab LifeCycle cov kev txiav txim siab

Thaum ntim, tuag casting muaj tus nqi tshwjxeeb {}} ib}}}}} kev ua haujlwm machining. Cov nqi tuam txhab Tooling yog siab dua pem hauv ntej, tab sis cov nqi marginal ib feem yog tsawg. Rau prototypes, luv khiav, lossis thaum siab- qhov kev lag luam tshuab raj yog ntau dua li kev nqis peev kub { Los ntawm lub neej pom kev, cov txo cov thermal deformation thiab siab dua lub zog rov tuav ntawm cov hlau tuaj yeem txhais tau cov kev pabcuam kub ntev dua hauv qhov chaw ib puag ncig.

Cov Lus Nquag Nug

1 exus tua pov tseg cov nyias ua haum rau kev ua kom siab nruam siab-} kub kev pab?

Nws nyob ntawm lub nra thiab geometry. Ntau tus tuag nrum aluminium qhov chaw ua tau zoo txog li ~ 120-200℃hauv kev pabcuam txuas ntxiv. Saum toj no tias, nrawm poob ntawm lub zog thiab kev pheej hmoo yuav ceev faj.

2 Vim li cas cov hlau uas tuav tau qhov ntsuas kub?

Hlau tus nqi qis dua thermal expansion thiab siab dua txhav ntawm qhov kub thiab txias pab tswj hwm. Wrought microstructures also support better elevated-temperature performance than typical die-cast microstructures.

5 au Aluminipa ua kom sov zoo dua, tsis yog qhov ntawd ua rau nws tiv thaiv cua sov ntau?

Thermal conductivity tseem yuav tau nthuav tawm tshav kub, tab sis kev tiv thaiv kub kuj tseem nyob ntawm lub zog khaws cia thiab nkag siab kub. Txhuas kis tau kub, tab sis cov hlau tiv taus deformation zoo dua thaum muaj kub.

4 · Tej zaum yuav muaj peev xwm txuas ntxiv nyob rau siab -} kub ua tau?

Cov tsho tuab tuaj yeem qeeb oxidation thiab nce emissivity, tab sis lawv tsis muaj kev hloov pauv kev coj mos. Xaiv cov txheej txheej ua ib feem ntawm cov tswv yim tsim qauv dav dav.

2 Kuv yuav txiav txim siab li cas ntawm ob rau kuv daim ntawv thov?

Start with operating temperature and load. If you expect >200℃nrog cov neeg siv tshuab tseem ceeb, cov hlau ib txwm muaj kev nyab xeeb dua. Yog hais tias qhov hnyav thiab cua sov kis hauv qab no ~ teev, tuag nrum hlau tej zaum yuav zoo tagnrho.

Tag

Thaum tshav kub kub ua yog ntau - qhov seem. Tuag cam khwb cia txhuas coj qis loj, siab thermal conductivity, thiab kev tsim khoom siv hlau ua kom zoo dua li {2} Lub zog txias, thiab kev ruaj khov ruaj khov. Soj ntsuam kev pab kub, thauj khoom profile, thev profile, thev naus laus zis, thiab ntau lawm ntim tau tus nqi raws li tus nqi thiab kev ua tau zoo. Thaum temperatures laub dhau ntawm ~ 200℃hauv qab cov neeg siv lub ntsiab siv hluav taws xob, cnc machined hlau feem ntau yog qhov ntau dua li cov kev pheej hmoo.

Powerwinx tshwj xeeb hauv kev tuag casting thiab cnc machining, ua kev lag luam nrog rau cov tsheb, kev kho mob, thiab kev sib tham. POWERWINX tau cog lus los muab cov txiaj ntsig siab - zoo, thiab cov khoom lag luam tshiab tau ua kom tau txais txiaj ntsig zoo hauv kev thov kev siv thoob ntiaj teb.