Los ntawm Zinc Los ntawm Galvanized Steel Pipes

Tianjin Lefin Industrial Co., Ltd yog ib qho ntawm cov tuam txhab kev paub ntau tshaj plaws thiab cov neeg muag khoom ntawm cov xau ntawm zinc los ntawm galvanized steel kav hauv Suav teb. Thov koj xav tias dawb mus yuav cov khoom zoo ntawm zinc los ntawm galvanized steel kav los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi tsim nyog muaj.

Zinc leakage yog hais txog qhov xwm txheej uas cov zinc txheej ntawm cov kav hlau galvanized yog ib feem uas ploj lawm los yog tev tawm, nthuav tawm cov hlau hauv qab.

Lub ntsiab yog vim li cas rau zinc to los ntawm galvanized steel kav yog raws li nram no:

1. Tsis txaus ua ntej-kev kho mob:Cov roj stains, xeb lossis impurities tseem tshuav ntawm cov yeeb nkab muaj feem cuam tshuam rau adhesion ntawm zinc txheej.
2. Qhov tsis zoo ntawm cov txheej txheem galvanizing:Tsis sib npaug zinc kua kub, tsis txaus soaking lub sij hawm los yog ua tsis tiav ntawm cov hlau txheej.
3. Cov teeb meem khoom siv:Cov yeeb nkab nws tus kheej muaj qhov tsis xws luag xws li pores, tawg lossis tsis sib xws.
4. Ib puag ncig corrosion:Ntev -lub sij hawm raug rau acidic los yog alkaline ib puag ncig los yog nyob rau hauv damp ntsev tsuag accelerates noj cov zinc txheej.
5. Mechanical puas:Kev sib tsoo lossis kev sib txhuam thaum lub sijhawm thauj lossis kev teeb tsa ua rau cov zinc txheej puas.

Cov kev ntsuas tseem ceeb kom tsis txhob poob zinc yog raws li hauv qab no:

• Kev kho qhov chaw nrujnt:Siv cov txheej txheem xws li ntxuav cov kua qaub thiab pab plating kom huv si saum npoo ntawm cov kav dej steel.

• Optimize Galvanizing Parameters:Tswj qhov kub ntawm zinc tov (440 - 460 degree), lub sij hawm immersion nyob rau hauv zinc da dej, thiab tus nqi cua txias.

• Txhim khu kev soj ntsuam zoo:Siv cov txheej txheem xws li txheej thickness ntsuas ntsuas thiab adhesion xeem los saib xyuas qhov zoo ntawm zinc txheej.

• Standardize cia thiab thauj:Tsis txhob sib tsoo thiab sib txhuam. Hauv qhov chaw ntub dej, yuav tsum tau siv cov ntaub ntawv pov thawj- pov thawj.

• Lub hom phiaj xaiv:Nyob rau hauv ib puag ncig corrosive, xaiv cov khoom uas muaj zinc txheej tuab (xws li Ntau dua lossis sib npaug ntawm 80 μm) lossis zinc- aluminium alloy txheej.

Nws raug nquahu kom xaiv cov kav dej galvanized uas ua tau raws li lub teb chaws tus qauv (GB / T 3091), thiab ua zinc plating ntawm cov npoo txiav tom qab vuam thiab txiav kom ntev lub neej kev pab cuam.

Yog hais tias zinc yog los ntawm cov yeeb nkab steel galvanized, cov kev ntsuas kho yuav tsum tau ua raws li thaj chaw, qhov chaw thiab qhov hnyav ntawm qhov to. Cov hauv qab no yog cov txheej txheem tuav tswj:

Ua ntej, txiav txim siab qhov hnyav ntawm zinc to:

• Me me zinc to:Tsuas yog ib cheeb tsam ntawm cov zinc txheej uas ploj lawm, thaum lub hauv paus steel yeeb nkab tseem zoo lawm thiab tsis muaj qhov to lossis deformation.

• Nruab nrab zinc leakage:Cov txheej zinc yog qhov hnyav heev, thiab qhov ntiav ntawm lub substrate kuj raug cuam tshuam. Tej zaum yuav muaj me ntsis dej seepage.

• Zinc leakage hnyav:Cov khoom siv hauv paus muaj qhov tawg thiab tawg heev, lossis nws yog siv rau lub ntsiab siab -cov kav dej.

Raws li lub teb chaws tus qauv GB / T 13912, tag nrho cheeb tsam ntawm plated tsis xws luag yuav tsum tsis txhob ntau tshaj 0.5% ntawm tag nrho cov saum npoo ntawm lub Cheebtsam, thiab cheeb tsam ntawm txhua plated defect yuav tsum tsis txhob ntau tshaj 10 cm². Yog tias qhov kev txwv no dhau lawm, cov khoom yuav tsum raug xa rov qab mus rau lub Hoobkas rau rov- plating.

Hom kev kho:
1. Zinc-raws li kev kho alloy (kub-kub kho)

• Muaj feem xyuam rau: thaj chaw me me ntawm zinc to, yuav tsum tau siv cov cuab yeej tshaj lij.
• Cov kauj ruam: Kev ntxuav → Preheat rau 300 - 400℃→ Siv zinc-raws li alloy rods rau kev sib txhuam deposition → Tom qab txias, ntsuas lub thickness.

2. Zinc-nplua nuj xim kho (txheej txheej kho)

• Daim Ntawv Thov: Ntawm - kho qhov chaw, feem ntau siv.
• Cov khoom siv: Xaiv zinc-cov txheej txheem uas muaj zinc cov ntsiab lus ntau dua lossis sib npaug li 92% (xws li Roberu txias galvanized coatings).
• Kauj Ruam: Polish thiab huv si kom txog thaum cov xim hlau ua tiav → Thov 2-3 txheej ntawm zinc-nplua nuj xim → Qhuav zaj duab xis thickness Ntau dua los yog sib npaug rau 80 μm (30 μm thicker dua li qub zinc txheej).

3. Thermal Spraying Zinc Kho

• Muaj feem xyuam rau: Cov cheeb tsam loj lossis qhov tseem ceeb.
• Cov kauj ruam: Sandblasting tu → Kub txau ntawm zinc → Uniform txheej tsis muaj lumps → Thickness ntsuas.

1. Kev kho deg:

Siv lub kaum sab xis grinder, steel hlau txhuam, los yog xuab zeb blasting kom huv si tshem tawm xeb thiab roj stains los ntawm zinc to qhov chaw kom txog rau thaum lub hlau nto yog ib tug metallic luster. Ntxiv cov zinc txheej tsis zoo ib ncig ntawm 3-5 cm los tsim kev hloov pauv.

2. Environmental Requirements:

Kub siab dua los yog sib npaug li 5 degree, av noo tsawg dua los yog sib npaug li 85%. Zam kev tsim kho thaum nag lossis huab cua pos huab.

3. Painting Tsim:

• Siv cov "hloov txoj kev" rau painting los xyuas kom meej uniformity.
• Txhua txheej txheej yuav tsum tau tso cai kom qhuav raws li cov khoom qhia (feem ntau 30 feeb mus rau 1 teev).
• Tag nrho cov yeeb yaj kiab qhuav tuab rau kev kho yuav tsum yog 250-300 micrometers, thiab nws yuav tsum tsis txhob tsawg dua li cov zinc txheej qub.

4. Kev Xeem Txais:

• Thickness yog ntsuas los ntawm kev ntsuas magnetic thickness.
• Kev kuaj tev nplaum yuav ua rau 24 teev tom qab (tus qhab nia ntawm 0 tau suav tias yog qhov zoo heev).
• Lub siab-cov kav dej yuav tsum tau mus rau qhov kev sim ntawm 1.5 npaug ntawm kev ua haujlwm siab, thiab khaws cia hauv siab rau 30 feeb yam tsis muaj qhov xau.

• Vuam / Txiav Cheeb Tsam:Lub vuam slag yuav tsum tau muab tshem tawm los ntawm kev sib tsoo thiab kho raws li cov txheej txheem saum toj no.
• Cov kab nrib pleb hnyav hauv siab-cov kav dej muaj zog:Nws raug nquahu kom hloov cov raj xa dej thiab nruj me ntsis txwv tsis pub ua haujlwm raws li qhov tsis raug.
• Kev kub ceev rau zinc to ntawm lub boiler:Tam sim ntawd kaw lub qhov cub, tshem tawm cov zinc, thiab tom qab ntawd txias nws ua ntej nws welded los ntawm cov kws tshaj lij.

• Ua kev tshuaj xyuas tsis tu ncua tom qab kho, thiab tshuaj xyuas cov txheej txheem txhua 6 lub hlis.
• Lub installation siv nylon slings los tiv thaiv cov hlau xaim hlua los ntawm kev puas tsuaj rau zinc txheej.
• Kev vuam ncaj nraim yog txwv nruj rau ntawm qhov chaw galvanized. Yog tias qhov vuam tsim nyog, kev tiv thaiv yuav tsum tau ua ua ntej thiab kev kho yuav tsum tau ua tom qab.

Lus Cim: Tsis txhob siv cov tshuaj tiv thaiv zoo tib yam - xeb xim lossis cov hmoov hmoov xim es tsis txhob siv zinc - cov xim nplua nuj. Txwv tsis pub, corrosion yuav kis tau rau hauv qab ntawm qhov chaw, ua rau bulging thiab detachment nyob rau hauv ib lub sij hawm luv luv. Txawm hais tias tus nqi ntawm kev kho tus qauv yog siab dua txhua zaus, nws tuaj yeem txuas ntxiv lub sijhawm txij nkawm mus rau 5-8 xyoo, ua rau 60% txo tus nqi tu lub sijhawm ntev.