* KEV TXHIM KHO GALVANIZING
Cov yeeb nkab galvanized kub-dip yog ua kom cov hlau molten cuam tshuam nrog cov hlau matrix los tsim cov txheej alloy, yog li ua ke cov matrix thiab txheej. Kub-dip galvanizing thawj zaug acid ntxuav cov yeeb nkab hlau kom tshem tawm cov hlau oxide ntawm qhov chaw ntawm cov yeeb nkab hlau. Tom qab acid ntxuav, nws raug ntxuav hauv lub tank nrog ammonium chloride lossis zinc chloride aqueous kua lossis sib xyaw ntawm ammonium chloride thiab zinc chloride aqueous kua, thiab tom qab ntawd xa mus rau lub dab dej galvanizing kub-dip.
Kev kub-dip galvanizing muaj qhov zoo ntawm kev sib npaug zoo, kev nplaum zoo, kev tiv thaiv corrosion zoo, thiab lub neej ntev. Tshwj xeeb tshaj yog nyob rau hauv qhov chaw nyuaj, xws li av noo, nag, nag acid, ntsev tsuag thiab lwm yam chaw, kev ua tau zoo ntawm kev kub-dip galvanizing yog qhov tseem ceeb dua. Cov hlau substrate thiab cov kua plating molten dhau los ua cov tshuaj tiv thaiv lub cev thiab tshuaj lom neeg los tsim cov txheej txheem zinc-hlau alloy uas tiv taus corrosion nrog cov qauv nruj. Cov txheej txheem alloy, txheej zinc ntshiab, thiab cov hlau substrate tau sib xyaw ua ke. Yog li ntawd, nws muaj kev tiv thaiv corrosion zoo.
1. Kev sib xws ntawm cov txheej: Cov yeeb nkab hlau yuav tsum tsis txhob tig liab (xim tooj liab) tom qab raug muab tso rau hauv cov tshuaj tooj liab sulfate rau 5 zaug sib law liag.
2. Qhov zoo ntawm qhov chaw: Qhov chaw ntawm cov yeeb nkab galvanized steel yuav tsum muaj ib txheej galvanized tiav, thiab yuav tsum tsis muaj cov pob dub thiab cov npuas uas tsis tau coated. Nws raug tso cai kom muaj qhov chaw ntxhib me ntsis thiab cov zinc hauv zos.
| Qhov txawv ntawm kub dip galvanized thiab pre galvanized yog dab tsi? | |||||||
| Kub Dip Galvanized Steel Yeeb Nkab | Ua ntej Galvanized Steel Yeeb Nkab | ||||||
| Cov Yeeb Nkab Hlau Thickness | 1.0 hli thiab siab dua | 0.8 hli txog 2.2 hli | |||||
| Txheej Zinc | nruab nrab 200g/m2 txog 500g/m2 (30um txog 70um) | nruab nrab 30g/m2 txog 100g/m2 (5 txog 15 microns) | |||||
| Qhov zoo | txheej txheej zoo sib xws, muaj zog nplaum, sealing zoo, thiab lub neej ntev | du nto, xim kaj, thiab txheej nyias nyias | |||||
| Kev Siv | siv dav hauv kev thauj mus los kua dej qis rau dej, dej phwj tuaj, roj, cua sov, cua sov, kev tsim kho hauv nroog, petrochemical, nkoj tsim thiab lwm yam teb. | kev tsim kho vaj tse, kev tsim rooj tog thiab lwm yam teb. | |||||
* Pleev xim
Cov yeeb nkab hlau pleev xim yog siv cov xim sib txawv los tsuag rau saum npoo ntawm cov yeeb nkab hlau kom txhim kho qhov tiv taus xeb thiab kev zoo nkauj ntawm cov yeeb nkab. Cov yeeb nkab hlau pleev xim suav nrog cov yeeb nkab hlau uas muaj tshuaj tsuag thiab cov yeeb nkab hlau pleev xim.
Cov yeeb nkab hlau uas muaj tshuaj tsuag yog thawj zaug ntxuav nrog kua qaub, galvanized thiab phosphated, thiab tom qab ntawd tsuag electrostatically. Qhov zoo ntawm txoj kev no yog qhov nplaum zoo ntawm cov txheej, tsis yooj yim tev tawm, ua haujlwm tiv thaiv zoo, xim ci thiab zoo nkauj; qhov tsis zoo yog tias tus nqi kim heev, thiab xav tau cov khoom siv tsuag tshwj xeeb thiab cov neeg ua haujlwm txawj ntse los ua haujlwm.
Cov yeeb nkab hlau pleev xim yog cov xim sib txawv uas ncaj qha txau rau ntawm qhov chaw ntawm cov yeeb nkab hlau yam tsis muaj kua qaub ntxuav, galvanized lossis phosphating, txhawm rau txhim kho qhov tiv taus corrosion thiab kev zoo nkauj ntawm cov yeeb nkab. Qhov zoo ntawm txoj kev no yog tus nqi qis thiab yooj yim ua; qhov tsis zoo yog qhov tsis muaj zog lo, nyuaj rau ua tiav qhov cuam tshuam tiv taus corrosion mus sij hawm ntev, thiab xim tsis sib xws.
Thaum siv cov yeeb nkab hlau pleev xim, nws yog ib qho tsim nyog los xaiv hom xim, xim thiab tuab raws li cov xwm txheej tshwj xeeb ntawm kev siv thiab cov kev xav tau. Tib lub sijhawm, nws yuav tsum tau ua kom ntseeg tau tias qhov chaw ntawm cov yeeb nkab hlau qhuav, huv si thiab du kom ntseeg tau tias cov txheej txheem nplaum thiab lub neej ua haujlwm.
Cov yeeb nkab hlau uas muaj tshuaj tsuag
Cov yeeb nkab hlau pleev xim
* 3PE FBE
3PE (3-Txheej Polyethylene) thiab FBE (Fusion Bonded Epoxy) yog ob hom txheej txheej siv rau cov kav dej thiab cov kav dej hauv kev lag luam roj thiab roj kom qeeb lossis tiv thaiv kev xeb.
3PE yog ib txheej txheej peb txheej uas muaj cov tshuaj epoxy primer, cov nplaum copolymer, thiab cov polyethylene topcoat. Cov tshuaj epoxy primer muab qhov chaw sib txuas zoo rau cov nplaum copolymer, uas ua rau muaj qhov chaw sib txuas rau cov polyethylene topcoat. Peb txheej no ua haujlwm ua ke los tiv thaiv cov yeeb nkab los ntawm kev xeb, kev sib txhuam, thiab kev puas tsuaj los ntawm kev cuam tshuam.
FBE, ntawm qhov tod tes, yog ob txheej txheej txheej uas muaj cov khoom siv epoxy resin uas muaj cov khoom me me thiab cov txheej sab saud uas yog polyamide. Cov epoxy uas muaj cov khoom me me muab kev nplaum zoo rau cov hlau, thaum cov txheej sab saud muab kev tiv thaiv tshuaj lom neeg zoo heev thiab kev tiv thaiv kev sib txhuam. Cov txheej FBE siv rau ntau yam kev siv, xws li cov kav dej roj thiab roj mus rau cov dej thiab cov dej khib nyiab.
Ob qho tib si 3PE thiab FBE txheej txheem zoo rau kev tiv thaiv cov kav dej thiab cov kav dej los ntawm kev xeb, nyob ntawm qhov xav tau ntawm daim ntawv thov tshwj xeeb. Kev xaiv ntawm ob qho no feem ntau yog tsav los ntawm cov yam xws li hom kav dej, cov xwm txheej ua haujlwm, thiab tus nqi.
| 3PE VS FBE | |||||||
| Lub zog nplaum | 3PE txheej muab lub zog nplaum siab dua li FBE, vim tias cov nplaum copolymer hauv 3PE pab txhawb kev sib txuas zoo dua ntawm epoxy primer thiab polyethylene topcoat txheej. | ||||||
| Kev Cuam Tshuam thiab Kev Sib Txhuam | Cov polyethylene topcoat hauv 3PE txheej muab kev tiv thaiv zoo dua tiv thaiv kev cuam tshuam thiab kev puas tsuaj piv rau FBE. | ||||||
| Kev Siv | Cov txheej txheem FBE yog qhov zoo dua rau hauv cov kav dej uas qhov kub ua haujlwm siab vim lawv tuaj yeem tiv taus qhov kub siab zoo dua li 3PE txheej txheem. Ntawm qhov tod tes, 3PE txheej txheem yog qhov zoo dua rau hauv cov ntawv thov uas cov kav dej raug rau av thiab dej, vim nws muab kev tiv thaiv zoo dua tiv thaiv xeb thiab xeb. | ||||||
*Roj roj
Kev siv roj rau sab nraud ntawm cov yeeb nkab hlau yog ib txoj hauv kev los tiv thaiv kev xeb thiab kev tiv thaiv rau cov yeeb nkab hlau. Kev siv roj tuaj yeem ua rau qeeb qeeb kev sib cuag ntawm cov yeeb nkab hlau thiab ib puag ncig sab nraud, thiab tiv thaiv cov yeeb nkab hlau kom tsis txhob raug cuam tshuam los ntawm kev oxidation, kev xeb, kev hnav, thiab lwm yam.
* Stencil los yog Stamp
Lub Cim
Stencil
* Kev xuas nrig ntaus
Siv lub tshuab xuas nrig ntaus kom nias rau ntawm lub tshuab xuas nrig ntaus. Tswj kom lub zog ruaj khov kom txog thaum lub tshuab xuas nrig ntaus nkag mus rau hauv phab ntsa yeeb nkab hlau, ua rau lub qhov huv thiab meej.
Cov txheej txheem tho qhov yeeb nkab hlau muaj ntau yam kev siv, suav nrog tab sis tsis txwv rau cov hauv qab no:
1. Kev Txuas Cov Yeeb Nkab Hlau: Kev tho yog ib txoj hauv kev siv ntau tshaj plaws rau kev txuas cov yeeb nkab hlau. Los ntawm cov txheej txheem tho cov yeeb nkab hlau, cov qhov tuaj yeem qhib rau ntawm cov yeeb nkab hlau, kom cov ntsia hlau thiab cov txiv ntoo tuaj yeem ntsia rau ntawm cov pob qij txha thiab cov flanges, kom ua tiav lub hom phiaj ntawm kev txuas.
2. Kev kho cov kav hlau: Nws kuj yog ib qho kev siv ntau los kho cov kav hlau rau ntawm phab ntsa lossis lwm qhov chaw los ntawm cov txheej txheem tho cov kav hlau.
Kev siv hauv steel qauv hnub ci vaj huam sib luag bracke
Siv cov khoom siv hauv kev loj
* Kev sib txuas xov
NPT (National Pipe Thread) thiab BSPT (British Standard Pipe Thread) yog ob hom yeeb nkab txheem.
NPT xov feem ntau siv hauv North America thiab BSPT xov feem ntau siv hauv Tebchaws Europe thiab Asia.
Ob tus qauv muaj cov xov tapered uas tsim kom muaj lub foob nruj thaum nruj ua ke. Siv dav hauv dej, roj, roj thiab lwm yam kev sib txuas ntawm cov kav dej.
2. Kev kho cov kav hlau: Nws kuj yog ib qho kev siv ntau los kho cov kav hlau rau ntawm phab ntsa lossis lwm qhov chaw los ntawm cov txheej txheem tho cov kav hlau.
*Nruab nrab
Kev sib txuas ntawm cov kav dej hluav taws kub yog ib txoj kev sib txuas uas nrov heev vim nws muaj ntau yam zoo. Nov yog qee qhov txiaj ntsig tseem ceeb:
1. Kev teeb tsa yooj yim thiab ceev: Kev sib txuas ntawm Roll Groove tso cai rau kev teeb tsa cov kav dej thiab cov khoom siv sai thiab yooj yim, vim tsis tas yuav vuam lossis xov.
2. Kev tiv thaiv kev lag luam thiab ib puag ncig: Txoj kev sib txuas no pheej yig dua li lwm txoj hauv kev, ua rau nws yog qhov kev xaiv nrov rau ntau daim ntawv thov. Nws kuj tseem zoo rau ib puag ncig vim nws txo cov khib nyiab thiab siv cov peev txheej tsawg dua.
3. Khaws cov yam ntxwv qub ntawm cov kav dej: Kev sib txuas ntawm Roll Groove tsis cuam tshuam rau cov yam ntxwv qub ntawm cov kav dej, xws li lawv lub zog, kev ruaj khov, thiab kev tiv thaiv xeb.
4. Kev saib xyuas yooj yim: Yog tias xav tau kev saib xyuas thiab kho, kev sib txuas ntawm Roll Groove ua rau nws yooj yim rau kev rhuav tshem thiab hloov cov khoom, yam tsis tas yuav siv cov cuab yeej lossis khoom siv tshwj xeeb.
| DN | Sab Nraud Txoj Kab Uas hla | Qhov Dav Ntawm Qhov Chaw Sealing ±0.76 | Qhov Dav Dav ntawm Qhov Rooj ±0.76 | Groove Hauv Qab Txoj Kab Uas hla | |
| mm | Kev kam rau siab | ||||
| 50 | 60.3 | 15.88 | 8.74 | 57.15 | -0.38 |
| 65 | 73 | 15.88 | 8.74 | 69.09 | -0.46 |
| 65 | 76.1 | 15.88 | 8.74 | 72.26 | -0.46 |
| 80 | 88.9 | 15.88 | 8.74 | 84.94 | -0.46 |
| 100 | 114.3 | 15.88 | 8.74 | 110.08 | -0.51 |
| 125 | 141.3 | 15.88 | 8.74 | 137.63 | -0.56 |
| 150 | 165.1 | 15.88 | 8.74 | 160.78 | -0.56 |
| 150 | 168.3 | 15.88 | 8.74 | 163.96 | -0.56 |
| 200 | 219.1 | 19.05 | 11.91 | 214.4 | -0.64 |
*Ntsug
Txoj kab uas hla loj dua NPS 11/2 [DN 40] tiaj tus-kawg beveled nrog cov kawg beveled rau lub kaum sab xis ntawm 30 °, + 5 °, -0 °
* Cov Xaus tiaj tiaj
Kev txiav ob sab kawg ntawm cov yeeb nkab hlau ua daim duab dav dav ntawm 90◦ rau ntawm txoj kab yog qhov yuav tsum tau ua hauv ntau lub lag luam uas siv cov yeeb nkab. Qhov no feem ntau yog ua los npaj cov yeeb nkab rau kev vuam lossis lwm yam kev sib txuas, thiab xyuas kom meej tias cov kawg yog tiaj tus thiab perpendicular rau txoj kab ntawm cov yeeb nkab.
*Flanged
Cov yeeb nkab hlau flanged yog ib hom yeeb nkab uas muaj flange txuas rau ib lossis ob qho kawg. Flanges yog cov discs voj voog nrog cov qhov thiab bolts uas siv los txuas cov yeeb nkab, li qub, lossis lwm yam khoom siv. Cov yeeb nkab hlau flanged feem ntau yog ua los ntawm kev vuam flange rau qhov kawg ntawm cov yeeb nkab hlau.
Cov kav hlau flanged feem ntau siv rau hauv kev lag luam xws li kev muab dej, roj thiab roj av, thiab kev ua tshuaj lom neeg. Lawv nyiam dua lwm hom kav vim tias lawv tuaj yeem yooj yim ntsia thiab ruaj khov heev. Cov kav hlau flanged tuaj yeem tiv taus qhov siab siab thiab tuaj yeem yooj yim rhuav tshem rau kev saib xyuas lossis kho.
Cov flanges ntawm cov yeeb nkab hlau flanged muaj ntau yam duab thiab qhov loj sib txawv kom phim cov kev xav tau sib txuas. Cov hom feem ntau suav nrog cov flanges slip-on, weld neck flanges, threaded flanges, thiab socket weld flanges.
Hauv kev xaus, cov kav hlau flanged yog qhov kev xaiv nrov rau ntau lub lag luam vim tias lawv muab kev sib txuas ruaj khov thiab ruaj khov ntawm cov kav dej thiab cov khoom siv.
* Txiav Ntev
Cov thev naus laus zis txiav dej paub txog nws qhov kev ua kom raug thiab raug, nrog rau nws lub peev xwm los tsim cov npoo du, tsis muaj burr.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv tshuab txiav dej yog tias nws yog txoj kev txiav txias, txhais tau tias tsis muaj thaj chaw kub-cuam tshuam (HAZ) nyob ib puag ncig qhov txiav.
Kev txiav siv dej kuj zoo rau ib puag ncig, vim nws tsis tsim cov khib nyiab lossis cov pa phem. Lub kaw lus tsuas yog siv dej thiab cov khoom siv sib xyaw, thiab cov khoom pov tseg tuaj yeem sau thiab pov tseg tau yooj yim.
* Ntim thiab Xa Khoom
PVC Yas Ntim
Txhawm rau tiv thaiv cov kav dej hlau thaum lub sijhawm thauj mus los thiab khaws cia, lawv feem ntau raug ntim nrog cov yas PVC ntim khoom los muab ib txheej tiv thaiv uas tiv thaiv kev khawb, kev puas tsuaj, thiab lwm yam kev puas tsuaj.
Ntxiv rau kev tiv thaiv cov kav dej hlau, cov yas ntim khoom PVC kuj pab kom lawv huv thiab qhuav. Qhov no tseem ceeb heev rau cov kav dej uas yuav siv rau hauv cov ntawv thov uas qhov huv si yog qhov tseem ceeb, xws li hauv cov tshuab xa dej lossis cov chaw ua zaub mov.
* Txhua yam pvc ntim;
*Tsuas yog cov yeeb nkab kawg uas ntim los ntawm pvc xwb;
* Tsuas yog cov yeeb nkab lub cev pvc ntim.
Ntoo Ntim
Txhawm rau tiv thaiv cov khoom siv hlau thaum lub sijhawm thauj mus los thiab tuav, cov neeg siv khoom tuaj yeem xaiv cov thawv ntoo uas ua raws li lawv xav tau, thiab kuj tuaj yeem ua raws li cov ntawv lo ntawm cov neeg siv khoom kom yooj yim txheeb xyuas.
Qhov zoo ntawm kev siv cov thawv ntoo uas muaj kev txhawb nqa kawg yog tias lawv muab kev tiv thaiv ntxiv thiab txo qhov kev pheej hmoo ntawm kev puas tsuaj rau cov khoom hlau. Lawv kuj ua rau yooj yim ntawm kev tuav thiab kev thauj mus los, vim tias cov thawv tuaj yeem muab tso ua pawg thiab ruaj ntseg rau ntawm cov pallets rau kev thauj mus los ntawm av, hiav txwv, lossis huab cua.
Kev xa khoom
Feem ntau cov khoom siv hlau feem ntau raug thauj mus los ntawm hiav txwv, av, lossis huab cua, nrog rau feem ntau ntawm cov khoom xa tawm ntawm Tianjin chaw nres nkoj.
Rau kev thauj mus los hauv hiav txwv, muaj ob txoj hauv kev tseem ceeb: kev xa khoom hauv thawv lossis kev xa khoom ntau.
Kev thauj mus los hauv av feem ntau yog los ntawm tsheb ciav hlau lossis tsheb thauj khoom, nyob ntawm qhov chaw mus thiab lub tuam txhab thauj khoom siv.
*Kev Txhawb Nqa
Cov kev pab cuam ua ntej muag:
1. Qauv pub dawb: Qauv yeeb nkab hlau ntev 20cm pub dawb nrog cov nqi xa khoom uas tus neeg yuav khoom them.
2. Cov lus qhia txog khoom: siv peb cov kev paub txog cov khoom los qhia rau cov neeg siv khoom.
Cov kev pabcuam muag khoom nruab nrab:
1. Kev taug qab kev txiav txim: peb yuav ceeb toom rau cov neeg siv khoom txog qhov xwm txheej ntawm kev tsim khoom thiab kev xa khoom ntawm lawv cov xaj los ntawm email lossis xov tooj, kom ntseeg tau tias lawv nkag siab meej txog kev nce qib ntawm lawv cov xaj.
2. Muab cov duab tshuaj xyuas thiab xa khoom: peb yuav muab cov duab khoom ua ntej xa khoom rau cov neeg siv khoom kom paub tseeb tias lawv puas ua tau raws li qhov yuav tsum tau ua. Tib lub sijhawm, peb kuj tseem yuav ua qhov kev tshuaj xyuas nruj thiab kev tswj xyuas zoo ua ntej xa khoom kom ntseeg tau tias lawv ua tau raws li peb cov qauv zoo.
Cov kev pab cuam tom qab muag:
1. Kev soj ntsuam cov lus taw qhia ntawm cov neeg siv khoom tom qab tau txais cov khoom: peb saib cov lus taw qhia ntawm cov neeg siv khoom rau nqi thiab yuav soj ntsuam kom nkag siab txog lawv txoj kev siv thiab cov lus taw qhia ntawm peb cov khoom, txhawm rau txhim kho lawv cov khoom zoo thiab cov kev pabcuam tas mus li.
2. Cov qauv nqi thiab cov ntaub ntawv lag luam: peb nkag siab tias cov neeg siv khoom yuav ntsib kev hloov pauv ntawm kev ua lag luam thiab cov qauv kev lag luam, yog li peb yuav muab cov ntaub ntawv tsis tu ncua txog kev ua lag luam thiab kev lag luam kom pab cov neeg siv khoom nkag siab txog kev hloov pauv ntawm kev ua lag luam thiab kev lag luam raws sijhawm, ua rau lawv txiav txim siab tau zoo dua thiab zoo dua.