Cov khoom lag luam
ASTM ATM A123 yog tus qauv txheem tshwj xeeb rau kub - dip galvanized cov khoom siv ntawm kev sim ua kom zoo thiab ruaj khov ntawm cov txheej txheem kub. Tus qauv no them txhua yam ntawm cov khoom siv steel, suav nrog cov kav dej, cov ntaub ntawv tsim qauv, cov paib, thiab lwm yam.
I. Cov kev xav tau ntawm tus qauv
1. Cov qauv ntawm daim ntawv thov
Nws yog siv tau rau cov khoom lag luam steel (xws li cov kav hlau, cov khoom sib xyaw, thiab lwm yam.)
{{0- Tsis siv rau Galvanized nyias hlau daim hlau (tuab<0.76mm), wire rods or threaded fasteners in continuous production lines (this category is subject to ASTM A153).
2. Cov tswv yim rau txheej tuab tuab
Cov khoom siv cov khoom siv thiab cov ntaub tuab yas, qhov tsawg kawg nkaus nruab nrab txheej tuab tuab yuav tsum tau raws li cov cai ntawm cov lus hauv qab no:
| Cov Khoom Siv Khoom | Hlau tuab ntau yam (hli) | Yam tsawg kawg nkaus qhov nruab nrab txheej tuab (μm) |
| Kav dej thiab conduits | <1.5 | 45 |
| 1.5-3.0 | 45 | |
| 3.0-4.5 | 75 | |
| 4.5-6.0 | 75 | |
| Hlau Tuav | Ib qho tuab | 100 |
| Cov txheej txheem txheej txheem / phiaj | >6.0 | 100 |
Cov xwm txheej tshwj xeeb yuav tsum muaj: piv txwv li, lub tsev kho hluav taws xob yuav tsum muaj ntau dua lossis sib npaug ntawm 85μm / - ob sab).
3. PretreCent thiab txheej txheem
-}}} degreasingze thiab picking: kom huv si tshem roj thiab xeb kom ntseeg tau tias lub zog ntawm zinc.
{{0 {0} Kev kho flux: siv ammonium chloride / zinc chloride tov los tiv thaiv kev xeb theem nrab thiab txhawb nqa cov tshuaj tiv thaiv ntawm cov tshuaj tiv thaiv zinc thiab hlau.
Galvanizing kub: 435-450 degree, thiab lub sijhawm raug hloov kho raws li lub thickness ntawm cov tivthaiv (cov tuab tuab ntawm lub sijhawm).
- Txoj Kev Tsim Qauv: Rau Kaw Cov Yeeb Nkab Fittings (xws li Box-}} mus rau qhov tawg ("
4. Kev kuaj thiab kuaj
{{0- Kev Ua Samplling: Cov qauv yog xaiv los ntawm txhua pob. Cov yeeb nkab fittings nrog thaj chaw thaj tsam ntawm tsawg dua lossis sib npaug rau 100,000mm² tau suav tias yog cov qauv. Cov khoom siv loj yuav tsum tau kuaj hauv peb ntu.
{{0- thickness ntsuas kev ntsuas: coj ntau dua lossis muab cov qauv sib npaug (ASTM E376) lossis cov qauv me me (ASTM B487).
Ii. Cov khoom siv hauv chav kawm thiab cov qauv steel
ASTM A123 tswj cov khoom lag luam los ntawm daim foos thiab daim ntawv thov. Nws tsis txhais tau ncaj qha "steel qib", tab sis phim cov txheej txheem txheej txheej raws li cov ntaub ntawv qeb thiab cov tuab ntawm lub substrate:
{{0- kav dej thiab cov raj: haum rau cov kav dej zoo nkauj thiab cov txheej txheem tsim qauv, nrog nruab nrab txheej yuav tsum (45-75μμm).
{{0- Cov qauv qauv: xws li h {rajs thiab kuv} ci ci, uas yuav tsum muaj txheej txheem siab (75-100μm).
- rebar: Qhob txhawb kev tiv thaiv, tsis sib xws yuav tsum tau ua 100μm (corrosion tsis kam paub).
{{0- Daim Hlau: Thaum lub tuab yog ntau dua 6 hli, ib txheej ntxiv.
Nco tseg: Cov khoom siv hauv paus yuav tsum tau ua raws li kev txhawb nqa cov qauv xws li ASTM A105 (Carbon Steel Forgings) kom ntseeg tau cov khoom siv neeg kho mob.
III. Khoom nta thiab cov txiaj ntsig
1.long -} kav anti - corrosion
Qhov zinc txheej cais tawm cov pa thiab noo noo, nrog kev tshuaj tsuag dej noo), thiab cov tshuaj ntsev kom ntev tshaj li 500 teev.
2. Lub Zog Kev Ua Haujlwm Siab
Zinc -} xob hlau metallical kev sib koom tes (alloy txheej thickness 50-80μm), tsis yooj yim rau tev tawm.
3. Kev tiv thaiv kev lag luam thiab ib puag ncig
Tus nqi yog qis dua li ntawm stainless hlau, thiab tus nqi txij nkawm yog tsawg (tsuas yog kev tshuaj ntsuam tsis ntev tomqab). Zinc muaj peev xwm 100% siv tau 100%.
4. Yooj yim rau kev tsim kho
Galvanized kav yuav tau ncaj qha, tshem tawm cov kev xav tau ntawm - Corrosion cov txheej txheem (xws li kev tsim kho) thiab ua kom luv rau lub sijhawm tsim kho los ntawm ntau dua 30%.
IV. Daim ntawv thov tseem ceeb tseem ceeb
| Tshav pob | Cov xwm txheej raug | Cov ntaub ntawv / Qhov Zoo |
| Lub Tsev Cov Qauv | Hlau qauv ci thiab kab, choj txhawb nqa | Lub thawv ntawv ntim nrog cov pob zeb + galvanizing kom txhawb cov seismic tsis kam / thauj} bearing muaj peev xwm |
| Cov Chaw Hluav Taws Xob | Rectifier Vaj Tsev, Cable Tais | Av -} Raws li cov khoom siv yuav tsum tau ib txheej ntau dua los yog sib npaug rau 610g / m² (isti enctrochemical corrosion) |
| Cov dej num hauv lub laj kab | Dej muab dej rau hluav taws xob thiab cov dej ua haujlwm kom zoo | Ua raws li NSF tu cov qauv, tsis muaj kev pheej hmoo ntawm zinc ion ion takeage |
| Marine engineering | Cov txheej txheem txua roj av pipes, Wharf txhawb nqa | Hloov cov tsoos welded welded, tiv taus dej hiav txwv corrosion |
| Kev muaj Cheebtsam | Flange pob qij txha (xws li ovm 105+ galvanized) | 150psi qes {{- qhov system siab, nrawm- tso cov qauv |
V. Kev ceev faj
- Kev tswj Devormation:Nyias -} wallted leeg (<3mm) require a low-temperature slow zinc extraction process to prevent cooling deformation.
- Kev kho cov tshwj xeeb:Cov ntsiab lus puas yuav raug kho raws li ASTM A780, siv zinc - Raws li txheej.
- Hu nrog pob zeb ua:Lub rooj sib tham ntawm steel yuav tsum tau ua galvanized raws li tag nrho (ASTM A123), thiab cov kab xoob yuav tsum tau kho raws li AQhov A767.
Qhov kub - dip galvanized cov yeeb nkab tau ntawv pov thawj los ntawm ANTM AVOSIONS, thiab yog qhov kev xaiv zoo tshaj plaws rau cov av loj hauv chaw. Thaum tsim qauv, nws yog qhov tsim nyog kom nruj ua raws li cov tseev kom muaj xws li zinc outkicification qhov kev nyab xeeb ntawm txoj haujlwm kev nyab xeeb.
Cim npe nrov: ASTM AV123 kub DIP Galvanzied Yeeb, Tuam Tshoj, cov chaw muag khoom, chaw tsim khoom, Hoobkas, nqi
