Yog siv guide rails rau extrusion machines nyob rau hauv kev tsim thermal break yuav tsum xav txog dab tsi?

Cov raj tso caij muaj feem tseem ceeb li cas rau kev tsim kho cov hlwb kawg rau kev tsim kho cov hlwb kawg?

Cov rooj zaum kev nruab neeg yog qhov tseem ceeb heev thaum ua cov cuab yeej tsim los ntawm aluminum rau cov kev siv hluav taws xob no. Nws pab tiv thaiv peb kom txhob muaj kev sib txawv hauv qhov ntev thiab dej uas tseem ceeb rau kev ruaj khov hluav taws xob hauv tsev neeg, uas feem ntau yog ±0.1 mm. Muaj ib co ntim tshawb fawb hais tias, thaum cov khaub ncaws txhim kho cov rooj zaum kev nruab neeg, lawv tuaj yeem sau cov kev hloov kho tom qab khi rau ib lub profile thermal break los ntawm 38%. Qhov no tsim qhov chygal nyob rau hauv ob qhov chaw: tus nqi tsim kho thiab qhov zoo tshaj plaws hauv kev siv hluav taws xob raws li cov ntim tshawb fawb tau pub tseg hauv International Journal of Advanced Manufacturing Technology nyob ib xyoo 2023.

Yuav li cas rooj zaum kev nruab neeg pab tiv thaiv qhov ntev thiab dej nyob rau hauv thermal break profiles

Thaum siv qhov chaw ntxos hlau rau kev tsim kho, cov roj teeb pib muab tso rau hauv qhov chaw ntxos hlau los txhim kho kom zoo. Cov roj teeb pib tseem tswj xyuas qhov chaw tshwj xeeb ntawm qhov chaw nres thiab qhov chaw nres hlau. Kev suav xyaum los ntawm xyoo 2022 tau pom tias: thaum siv cov roj teeb pib nyob hauv kev tsim kho, muaj li 96 lossis 97 ntawm 100 qhov chaw nres tau txais ASTM E2934 lub hom phiaj. Yog tsis muaj cov roj teeb pib, ces tsuas muaj li 82 qhov chaw nres thiaj tau txais. Kev txhim kho no yog qhov tseem ceeb vim tias qhov chaw nres hlau yuav ua haujlwm zoo tshaj plaws yog tias txhua yam yog raug. Even small mistakes matter here. Peb hais txog ib feem dua ob millimeter uas tsis raug, thiab qhov no tuaj yeem cuam tshuam rau kev siv zog los ntawm 20%. Qhov no yog qhov tseem ceeb heev thaum cog lus txog kev ua haujlwm ntev thiab kev ruaj khov.

Cov teeb meem ntawm kev nthuav dav thiab nws txheej txheem rau kev tswj xyuas qhov chaw nres

Thaum cov cuab yeej tshuab tsim los ntawm hlau hloov loj li nyob rau haj yog 11 microns ib meter ib degrees Celsius, tab sis cov hlau aluminum hloov loj li nyob rau haj yog 23 microns nyob rau qhov sib xws, ces muaj teeb meem pib ntau tshaj li thaum siv ntev. Lub chaw tsim kho tshiab tau hloov mus siv cov ntsiab lus tshawb nrhiav uas tuaj yeem hloov qhov chaw nyob thaum txias lossis noog. Qhov kev pib? Kev sib xyawj feem ntau nyob rau haj qhov chaw ib millimeter, tshwj tsis yog thaum kub txias tshaj plaws txog 280 degrees Celsius raws li Thermal Processing Magazine piav los nug xyoo npaug. Thiab tsi txhob saib tsis tseeb qhov zoo tshaj plaws no - cov neeg tsim khoom pom tias muaj teeb meem tsawg dua li 60% ntxiv rau cov khoom siv tsis raug rau qhov chaw tsim tsha tshiab uas tsis tuaj yeem hloov.

Cov teeb meem nyob ze: Qhov sib xyawj thiab qhov hloov pauv nyob rau haj qhov chaw tsim

Qhov ceev faj tshwm sim rau qhov chaw tsim nyob rau haj qhov kub siab thiab siab zog sib tham

Kev txhim kho tshuab nruj qhov chaw ua siab ntawm kev tsim kho tshuab ua haujlwm ntau, nrog rau cheeb tsheb uas dhau li 450°C (842°F) thiab ntau dua 200 MPa nyob rau tias lub sijhawm no, muaj peb yam txoj hlua sib txawv:

• Kev ploj tso zis hauv qab nthab ntawm qhov chaw nruj tshuab cuam tshuaj rau kev tsim kho tshuab
• Cov kab ntsug ua haujlwm tsha tshaj 36% tawv rau carbon steel tsis muaj coating (ASM International standards)
• Hydrogen embrittlement txiav rau hauv kev kho tshuab kawg nkaus, tshwj tsis yog rau hauv cov roj sib txig aluminum-zinc

Cov kev tshwm sim no sib pua zog los tso kom meem ntawm kev sib xyaw nyob rau 0.02–0.05 mm saum ib txhaj 1,000 zaug ntawm kev tshuab, tsim tpenyias rau kev tsim kho tshuab thermal break profile tolerances.

Lus nug rau Kev Sau Npe Zoo Siab rau Guide Rail Nyob Rau Hauv Thermal Break Extrusion

Kev Sau Npe Txuj Ci Jij Yog Li Cas Thiab Kev Xaiv Vajtseb Rau Cov Chav Tsev Guide Rail Ua Tau Ntev

Cov ntaub ntawv siv rau kev tshaj xyuas lub kaum tes nyob rau hauv kev tshaj xyuas tsis cuam tshuam yuav tsum muaj qhov tsim nyog nyob rau hauv qhov khib nyiab ntawm 400 thiab 600 degrees Celsius tsis txhob muaj qhov khoob lossis hloov. Ntau tshwj tsis loj tshaj plaws muab ISO 6362-5 aluminum specs los kuaj nrog cov ntaub tungsten carbide, uas pab tau li 18 mus 22% zoo dua rau kev tsis cuam tshuam kom zoo dua kev siv cov ntaub steel tsha, raws li pom nyob rau hauv kev xam txheej los ntawm Journal of Materials Engineering lawm caug. Thaum siv rau qhov chaw uas muaj qhov siab tshaj plaws uas muaj qhov siab txog 80 MPa lossis ntau tshaj, cov ntaub tuab thiab muaj chromium molybdenum feem ntau yuav nyob ntev dua kom tsis txhob puav. Qhov no tau raug tso cai los ntawm kev xam txheej raws ASTM E466-21 standards rau kev kuaj qhov siab cyclical.

Qhov Chaw Tshaj Xyuas Muaj Txoj Kab Ua Nyob Ntev Thiab Muaj Qhov Zoo

Kev ntxig plasma rau kev txhard tsis tshaib tsim cov kab ntsug ntawm 0.1 mus 0.3 mm thiab muaj qhov loj li 1,200 mus 1,400 HV nyob rau hauv daim duab Vickers. Kev kho no cuam tshuam rau kev siv los ntawm 40% thaum kev tsim kho tsev nres kub. Ntau lub chaw tsim khoom feem ntau sib xyeeb kev siv PVD coatings xws li titanium aluminum nitride. Qhov sib xyeeb no tso cai rau kev tswj xyawj hli hauv ±0.05 mm tom qab 10,000 zaug tsim khoom, uas yog yooj yim tshaj plaws kom tau los ntawm EN 14024 standards rau kev ua haujlwm kub. Rau cov khoom siv los ntawm kev txhim kho kub, muaj ib qho phiaj xwm zoo dua. Lub khoom txaus siab dhau los, thiab qhov kub poob tuaj yeem hloov siab li 15% mus 18% kom raug rau kev txhim kho kub nyob rau hauv kev txhim kho kub. Qhov no tsim qhov tshwm sim tseem ceeb rau kev ua haujlwm ntawm cov khoom nyob rau hauv kev hloov kub.

Qhov Thaiv Tsi Siv Tau vs. Qhov Thaiv Siv Tau: Sauv Xam Qhov Tseem Ceeb Thiab Qhov Tseem Ceeb ntawm Qhov Tseem Ceeb

Qhov thaiv tseem ceeb muaj feem ntau tshaj li 0.02 mm rau ib meter qhov tseem ceeb, tab sis lawv xav tau kev kho tshuab ntau tshaj plaws rau kev tswj hwm qhov sib txawv ntawm kev cuam tshwv thiab siv khoom. Tom qab chav kawg, qhov kev siv tau siv tau muaj feem ntau ntawm 0.5 millimeter mus rau 2 millimeters ntawm kev tswj hwm kev tswj hwm los ntawm cov chaw tso tseg no. Cov no tuaj yeem tswj hwm kev loj hlob cuam tshwv ntawm 12 mus rau 18 microns rau ib meter nyob rau hauv kev tsav tsheb aluminum raws li ASME tshuaj xyuas dhau los ntawm 2024. Qhov tseem ceeb yog tias cov kev tswj hwm no tuaj yeem tshwm sim kev sib txawv ntxiv. Peb hais txog feem ntau ntawm 5 mus rau 8% hloov pauv rau kev tseem ceeb ntawm profiles. Qhov no txhais tau tias tus neeg siv tshuab yuav tsum tau siv kev check laser nyob rau lub sijhawm uas kub dua 200 degrees Celsius nyob rau lub sijhawm pib. Kev tswj hwm cuam tshwv yuav tsum tseem ceeb heev nyob rau qhov kub siab no.

Qhau keeb ntshai los tso caij siv siab ntau tiam thaum siv cov raj tshuab nrawm thiab nyiaj txiag

Keeb ntshai raws li muaj xwm yeem thiab nrhiav xyuas nyob rau hauv qhov chaw tsim kho tshuab nrawm

Cov chaw tsim kho tshuab nrawm tshiab siv cov raj tshuab nrawm uas muaj IoT tiv tauj kev nqus nqi, uas tau nce 40% dhau los ntawm 2022, thiab cov tshuab saib kub los nrhiav qhov tsis raug ntawm cov raj tshuab nrawm. Cov tshuab no nrhiav daim tes nqus nqi (feem ntau yog 12–18 kN rau hauv cov duab aluminum) thiab tus nqi kub sib txawv ntau dhau ±5°C los ntawm qhov pib, uas tig tias yuav tsum rov them kom raug.

Pej xeem ntawm ob pej xeem tseem ceeb tiam thaum keeb ntshai:

• Cov tshuab nqus nqi nqus nqi tes sab nraud ntawm cov raj tshuab nrawm
• Cov tshuab saib infrared soj ntsuam qhov kub ntawm cov raj tshuab nrawm
• Cov lus qhia tshuab computer theej tshuaj kom paub seb yuav nqus nqi ntau npaum li cas nrog 92% ntawm kev txaus siab (Manufacturing Intelligence Journal, 2023)

Qhau keeb ntshai thiab kev kho tshuab los kom kom meem friction thiab kev nqus nqi hlo li

Kev sib tshuam ntau (120–150 sib tshuam/minit) yuav xav tau kev them nyiaj lubrication systems xa 0.8–1.2 ml/hour ntawm qhov chaw sib tshuam. Qhov chaw tsim khoom siv diamond-like carbon (DLC) coatings sau tias muaj 34% kev txo hauv friction coefficient kom compared to traditional chromium plating.

Tswvy yig kev saib xyuas thiab kho kom zoo:

1. Saib xyuas lub tshuab them nyiaj lubrication system hnav hauv siab
2. Thiab saib xyuas thickness hnav hauv siab los ntawm ultrasonic
3. Hloov lub rail tag nrho thaum muaj 0.25 mm kev hloov form (per EN 12000-3 standards)

Sensors uas tuaj yeem pom kev cuam tshish ntawm huab cua nyiaj nyob rau hauv lub sijhawm yog li ntawd tuaj yeem tiv thaiv 78% ntawm cov ntaub ntawv lubricant viscosity thiab particulate contamination.