Thaum xaiv cov zaub LED sab nraum zoov, feem ntau cov neeg yuav khoom tsom rau pixel suab, ci ntsa iab, thiab qhov ntsuas IP. Cov khoom txee, txawm li cas los xij, yog qhov kev txiav txim siab ncaj qha uas cuam tshuam ncaj qha rau cov cua sov dissipation, kev pabcuam lub neej, qhov hnyav, kev tiv thaiv corrosion, thiab tag nrho cov nqi ntawm cov tswv cuab - tseem tsis tshua tau txais kev saib xyuas nws tsim nyog.
Kab lus no sib piv peb lub ntsiab txee cov ntaub ntawv siv nyob rau hauv sab nraum zoov LED zaub: tuag- nrum txhuas alloy, magnesium alloy, thiab hlau (hlau), npog lawv lub cev, kev lag luam tawm tswv yim-offs, thiab cov ntawv thov scenarios.
1. Tuag-Ntaus Aluminium Alloy
Aluminium alloy (feem ntau ADC12 los yog A380 qib) yog cov khoom tseem ceeb rau cov khoom kim heev sab nraum zoov thiab xauj LED zaub txee. Nws yog tsim los ntawm lub siab - siab tuag- txheej txheem casting, uas yields meej qhov ntev thiab zoo ib yam phab ntsa thickness - ob qho tib si tseem ceeb rau seamless multi- txee installation.
Kev ua haujlwm thermal:Aluminium muaj cov thermal conductivity ntawm kwv yees li 96-155 W / (m·K), siab dua hlau (~ 50 W / (m·K)). Nyob rau hauv ncaj qha- tsav sab nraum zoov cov zaub khiav ntawm qhov kaj siab, kev ua kom muaj cua sov ua kom txo tau qhov kub ntawm LED qhov sib txuas, uas muaj qhov ncaj qha, ntsuas tau ntawm LED lifespan. Txhua 10℃txo qhov kub ntawm qhov sib txuas yog dav kwv yees rau kwv yees li ob npaug ntawm LED kev pab cuam lub neej.
Qhov hnyav:Tuag-ntaus txhuas cov txee feem ntau hnyav 30–50% tsawg dua li cov khoom siv hlau sib npaug. Rau kev txhim kho loj loj, qhov no txo cov txheej txheem thauj khoom thiab ua kom yooj yim mounting kho vajtse. Rau cov ntawv xauj tsev, cov khoom sib zog ua rau txo qis kev qaug zog thiab ua kom lub teeb rigging.
Corrosion kuj:Aluminium ib txwm tsim cov txheej txheem oxide ruaj khov uas tiv taus ya raws thiab ntsev- huab cua corrosion, ua kom zoo rau cov ntug hiav txwv dej los yog siab - av noo ib puag ncig. Nto anodizing lossis hmoov txheej ntxiv txuas ntxiv qhov kev tiv thaiv no.
Dimensional raug:Tuag-casting kam rau ua tuaj yeem ncav cuag ± 0.1–0.2 mm, ua kom cov txee- rau- txee flatness uas txo qis pom seams hauv cov phab ntsa loj video.
Tus nqi:Tuag- nrum txhuas cuab yeej yog peev- hnyav. Cov nqi tsev yog siab dua cov hlau, tshwj xeeb tshaj yog rau cov nqi qis - ntim xaj.
2. Magnesium alloy
Magnesium alloy txee sawv cev rau ib qho me me, tshwj xeeb dua ntu. Magnesium (AZ91D yog qib sib txawv) yog kwv yees li 35% sib zog dua li txhuas thiab li 75% sib zog dua hlau ntawm qhov sib npaug.
Qhov hnyav kom zoo dua:Qhov no yog qhov laj thawj tseem ceeb ntawm magnesium yog siv - feem ntau hauv ultra-thin sab hauv tsev zoo- suab lossis siab - qhov kawg qiv qhia qhov twg qhov hnyav yog qhov yuav tsum tau ua. Rau loj - hom kev ncig xyuas cov ntxaij vab tshaus uas xav tau kev thauj khoom thoob ntiaj teb ntau zaus, txawm tias qhov hnyav hnyav npaum li cas.
Thermal conductivity:Magnesium alloy thermal conductivity yog kwv yees li 51-72 W / (m·K), qis dua txhuas. Nyob rau sab nraum zoov siab - daim ntawv thov kev ci ntsa iab, qhov no yog qhov muaj txiaj ntsig txwv tshwj tsis yog tias tus qauv tsim heatsink ntxiv them.
Corrosion susceptibility:Magnesium yog electrochemically active thiab raug rau galvanic corrosion, tshwj xeeb tshaj yog nyob rau hauv ntsev - huab cua los yog acidic ib puag ncig. Kev kho saum npoo av (chromate txheej, epoxy primer, lossis pleev xim) yog qhov yuav tsum tau siv sab nraum zoov, thiab ntev - kev tiv thaiv yuav tsum tau ua tib zoo saib xyuas ntau dua li txhuas.
Machining thiab kho:Magnesium alloy yog nkig ntau dua li txhuas. Kev puas tsuaj ntawm thaj chaw - ib qho kev muaj tiag hauv kev qiv LED ua haujlwm - yog ib qho nyuaj rau kev kho, thiab magnesium hmoov av los ntawm machining ua rau muaj hluav taws kub nyhiab uas yuav tsum tau tswj cov kev cob qhia.
Tswv yim txiav txim:Magnesium yog ib qho kev xaiv muaj txiaj ntsig hauv qhov hnyav- tseem ceeb hauv tsev lossis kev tswj hwm - daim ntawv thov kev xauj ib puag ncig, tab sis nws tsis tshua muaj cov khoom nyiam rau kev teeb tsa sab nraum zoov uas tsis muaj kev cuam tshuam thiab kev tu lub voj voog yog qhov tsis tuaj yeem xav txog.
3. Hlau (Iron) Txee
Steel txee, ib zaug txheem nyob rau hauv sab nraum zoov LED zaub, tam sim no feem ntau pom nyob rau hauv nkag - theem los yog pob nyiaj siv - ntu cov khoom.
Cov qauv rigidity:Cov hlau muaj zog tensile ntau dua li txhuas, uas tuaj yeem ua tau zoo dua hauv qhov loj heev - hom ntawv qhia txog cov cua tseem ceeb. Txawm li cas los xij, niaj hnub txhuas tuag-ntaus qauv tsim los ntawm kev tsim cov qauv tsim, thiab qhov sib txawv ntawm cov qauv siv feem ntau yog tsawg.
Qhov hnyav:Cov khoom siv hlau hnyav hnyav dua - tus nqi tseem ceeb ntawm tus neeg tsav tsheb thaum kev txhim kho, kev thauj khoom, thiab kev teeb tsa kev ua haujlwm tau ua tiav. A 960 × 960mm steel sab nraum lub txee tuaj yeem hnyav 35-55 kg, piv rau 18-28 kg rau qhov sib npaug ntawm txhuas.
Corrosion:Cov hlau tsis kho rusts sai heev nyob rau hauv cov av ntub los yog ntug hiav txwv ib puag ncig. Galvanization thiab hmoov txheej ncua kev pab cuam lub neej, tab sis nyob rau hauv kev xyaum, teb khawb thiab kho vajtse tiv tauj cov ntsiab lus yog nquag corrosion pib qhov chaw. Lub sijhawm tu ncua yog luv dua piv rau txhuas.
Tus nqi:Cov khoom siv raw thiab cov cuab yeej siv tau qis dua rau cov hlau, uas suav nrog kev siv txuas ntxiv hauv tus nqi - ntu kev lag luam rhiab heev.
Thaum tshav kub kub dissipation:Steel's lower thermal conductivity, combined with heavier wall sections typical of welded steel cabinets, can create heat accumulation in densely packed module configurations - a factor that affects long-term LED stability in high-ambient-temperature climates.
| Khoom | Aluminium Alloy | Magnesium alloy | Hlau |
|---|---|---|---|
| Thermal conductivity | Siab | Nruab nrab | Nruab nrab -Low |
| Qhov hnyav | Teeb | Teeb heev | Hnyav |
| Corrosion kuj | Zoo (natural oxide) | Nruab nrab (yuav tsum tau txheej) | Tsawg (yuav tsum tau galvanizing) |
| Dimensional raug | Siab (tuag-ntaus) | Siab (tuag-ntaus) | Nruab nrab (welded) |
| Kev kho | Zoo | Txwv tsis pub | Zoo (weldable) |
| Chav tsev nqi | Nruab nrab -High | Siab | Tsawg |
| Tej daim ntawv thov | Sab nraum zoov tsau, xauj | Nyob sab hauv tsev zoo- suab, qhov hnyav- tseem ceeb heev | Nyiaj txiag sab nraum zoov, loj - hom ntawv tsau |
5. Kev txiav txim siab rau cov neeg yuav khoom
Cov khoom txee yuav tsum raug soj ntsuam nrog rau ib puag ncig kev teeb tsa, tsis nyob hauv kev sib cais. Cov lus nug tseem ceeb los nug tus neeg muag khoom:
- Dab tsi alloy qib thiab tuag-casting txuj siv? (ADC12, A380, thiab lwm yam)
- Dab tsi yog lub txee qhov chaw kho mob, thiab qhov kev tiv thaiv corrosion yog dab tsi?
- Qhov ntsuas flatness tolerances ntawm cov khoom nyob ib sab yog dab tsi?
- Dab tsi yog qhov tseeb txee qhov hnyav nrog modules ntsia?
Rau kev txhim kho sab nraum zoov mus tas li hauv ib puag ncig nrog cov av noo siab dua 70% lossis nyob rau hauv 5 km ntawm ntug hiav txwv, tuag- nrum txhuas nrog anodized lossis hmoov- coated nto yog qhov kev xaiv zoo tshaj plaws. Steel tseem yog tus nqi - kev xaiv zoo uas siv cov kev txwv nyiaj txiag thiab cov sijhawm saib xyuas tsis tu ncua nyob rau hauv qhov chaw.