* GALVANIZING
Kub-dip galvanized yeeb nkab yog ua kom cov hlau molten hnov mob nrog cov hlau matrix los tsim cov txheej txheej hlau, yog li sib txuas cov matrix thiab txheej. Kub-dip galvanizing thawj cov kua qaub ntxuav cov yeeb nkab steel kom tshem tawm cov hlau oxide ntawm cov yeeb nkab steel. Tom qab ntxuav cov kua qaub, nws raug ntxuav hauv lub tank nrog ammonium chloride los yog zinc chloride aqueous tov los yog sib tov ntawm ammonium chloride thiab zinc chloride aqueous tov, thiab ces xa mus rau lub kub-dip galvanizing da dej.
Kub-dip galvanizing muaj qhov zoo ntawm txheej txheej, muaj zog adhesion, zoo corrosion kuj, thiab kev pab lub neej ntev. Tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav, xws li ntub dej, nag, kua qaub, tshuaj tsuag ntsev thiab lwm qhov chaw, kev ua haujlwm ntawm kub-dip galvanizing yog qhov tseem ceeb dua. Cov hlau substrate thiab cov molten plating tov tau ua rau lub cev thiab tshuaj lom neeg cov tshuaj tiv thaiv los tsim cov txheej txheem corrosion-resistant zinc-hlau alloy nrog cov qauv nruj. Lub alloy txheej, ntshiab zinc txheej, thiab steel substrate yog fused ua ke. Yog li ntawd, nws muaj zog corrosion kuj.
1. Kev tsis sib xws ntawm cov txheej txheem: Cov qauv steel yeeb nkab yuav tsum tsis txhob tig xim liab (tooj liab-plated xim) tom qab muab tso rau hauv cov tshuaj tooj liab sulfate rau 5 zaug sib law liag.
2. Nto zoo: Qhov saum npoo ntawm galvanized steel yeeb nkab yuav tsum muaj txheej txheej galvanized tiav, thiab yuav tsum tsis txhob muaj cov pob dub thiab npuas uas tsis coated. Nws raug tso cai kom muaj qhov ntxhib me ntsis thiab cov zinc nodules hauv zos tam sim no.
| Dab tsi yog qhov txawv ntawm kub dip galvanized thiab pre galvanized? | |||||||
| Kub Dip Galvanized Steel Yeeb Nkab | Pre Galvanized Steel Yeeb Nkab | ||||||
| Hlau yeeb nkab Thickness | 1.0mm thiab siab dua | 0.8mm txog 2.2mm | |||||
| Zinc Txheej | nruab nrab 200g / m2 txog 500g / m2 (30um rau 70um) | Qhov nruab nrab 30g / m2 txog 100g / m2 (5 txog 15 microns) | |||||
| Qhov zoo | txawm txheej, muaj zog adhesion, zoo sealing, thiab ntev lifespan | du nto, ci xim, thiab nyias txheej | |||||
| Kev siv | dav siv nyob rau hauv Low-pressure fluid thauj mus los rau dej, dej phwj tuaj, roj, huab cua, cua sov chav, municipal tsim, petrochemical, shipbuilding thiab lwm yam teb. | structural engineering, rooj tog tsim thiab lwm yam. | |||||
* POM ZOO
Painted steel yeeb nkab yog los tshuaj tsuag cov xim sib txawv ntawm cov yeeb nkab steel txhawm rau txhawm rau txhim kho corrosion kuj thiab zoo nkauj ntawm cov yeeb nkab. Painted steel kav muaj xws li tshuaj tsuag-coated steel kav thiab pleev xim rau steel kav.
Txau-coated steel yeeb nkab yog thawj cov kua qaub-ntxuav, galvanized thiab phosphated, thiab ces electrostatically sprayed. Qhov zoo ntawm txoj kev no yog qhov muaj zog adhesion ntawm txheej, tsis yooj yim rau tev tawm, kev tiv thaiv kev ua haujlwm zoo, cov xim ci thiab zoo nkauj; qhov tsis zoo yog tias tus nqi kuj tseem siab, thiab cov khoom siv tshuaj tsuag tshwj xeeb thiab cov neeg ua haujlwm txawj ntse yuav tsum tau ua haujlwm.
Painted steel yeeb nkab yog ncaj qha tshuaj tsuag-xim xim sib txawv ntawm cov yeeb nkab steel tsis muaj kua qaub ntxuav, galvanized los yog phosphating, txhawm rau txhim kho corrosion kuj thiab zoo nkauj ntawm cov yeeb nkab. Qhov zoo ntawm txoj kev no yog tus nqi qis thiab kev ua haujlwm yooj yim thiab yooj yim; qhov tsis zoo yog qhov tsis muaj zog adhesion, nyuaj rau kev ua tiav cov nyhuv corrosion mus ntev, thiab cov xim kuj monotonous.
Thaum siv cov kav dej pleev xim rau, nws yog ib qho tsim nyog los xaiv cov xim uas tsim nyog, xim thiab thickness raws li cov kev cai tshwj xeeb ntawm kev siv thiab kev xav tau. Nyob rau tib lub sijhawm, nws yuav tsum tau ua kom ntseeg tau tias qhov chaw ntawm cov yeeb nkab steel yog qhuav, huv si thiab du kom ntseeg tau tias cov txheej txheem adhesion thiab kev pab cuam lub neej.
Spray-coated steel yeeb nkab
Painted steel yeeb nkab
* 3 PEB FBE
3PE (3-Layer 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 corrosion.
3PE yog txheej peb txheej uas muaj epoxy primer, copolymer nplaum, thiab polyethylene topcoat. Lub epoxy primer muab qhov sib txuas zoo rau cov nplaum copolymer, uas nyob rau hauv lem muab ib qho chaw sib txuas rau polyethylene topcoat. Peb txheej ua haujlwm ua ke los tiv thaiv cov yeeb nkab los ntawm corrosion, abrasion, thiab kev puas tsuaj.
FBE, ntawm qhov tod tes, yog ob-txheej txheej txheej txheej txheej txheej uas muaj cov txheej txheem-filled epoxy resin puag thiab lub tsho sab saum toj uas yog polyamide. Cov khoom uas muaj cov epoxy muab cov adhesion zoo rau cov chaw hlau, thaum lub tsho sab saum toj muab cov tshuaj tiv thaiv zoo heev thiab kev puas tsuaj. FBE coatings yog siv rau ntau yam kev siv, xws li cov roj thiab cov kav dej rau cov dej thiab cov dej khib nyiab.
Ob leeg 3PE thiab FBE txheej txheej muaj txiaj ntsig zoo ntawm kev tiv thaiv cov kav dej thiab cov kav dej los ntawm kev xeb, nyob ntawm cov ntawv thov tshwj xeeb. Qhov kev xaiv ntawm ob feem ntau yog tsav los ntawm cov yam ntxwv xws li hom kav dej, kev ua haujlwm, thiab tus nqi.
| 3 PE VS FBE | |||||||
| Adhesion zog | 3PE txheej muab ntau dua adhesion zog tshaj FBE, raws li cov copolymer nplaum nyob rau hauv 3PE pab nyob rau hauv kev sib raug zoo zoo ntawm cov epoxy primer thiab polyethylene topcoat txheej. | ||||||
| Impact thiab Abrasion | Polyethylene topcoat nyob rau hauv 3PE txheej muab kev tiv thaiv zoo dua tiv thaiv kev cuam tshuam thiab kev puas tsuaj piv rau FBE. | ||||||
| Kev siv | FBE txheej yog nyiam nyob rau hauv cov kav dej uas qhov kev khiav hauj lwm kub siab vim lawv tuaj yeem tiv taus qhov kub thiab txias zoo dua li 3PE txheej. Ntawm qhov tod tes, 3PE coatings yog nyiam nyob rau hauv daim ntawv thov qhov twg cov raj xa mus rau cov av thiab dej, vim nws muab kev tiv thaiv zoo dua tiv thaiv corrosion thiab xeb. | ||||||
* Roj
Kev siv roj rau sab nrauv ntawm cov yeeb nkab steel yog ib txoj hauv kev muab kev tiv thaiv corrosion thiab kev tiv thaiv rau cov yeeb nkab steel. Oiling tuaj yeem ua rau qeeb ntawm kev sib cuag ntawm cov yeeb nkab steel thiab ib puag ncig sab nraud, thiab tiv thaiv cov yeeb nkab steel los ntawm kev cuam tshuam los ntawm oxidation, corrosion, hnav, thiab lwm yam.
* Stencil lossis Stamp
Stamp
Stencil
* Punching
Siv lub tshuab xuas nrig ntaus tshuab los siv lub zog rau lub punch siv lub tshuab xuas nrig ntaus tuag. Khaws lub siab ruaj khov kom txog thaum lub punch nkag mus rau phab ntsa ntawm cov yeeb nkab steel, ua kom lub qhov huv thiab meej.
Cov txheej txheem steel yeeb nkab drilling muaj ntau yam kev siv, suav nrog tab sis tsis txwv rau cov hauv qab no:
1. Kev sib txuas ntawm cov kav hlau steel: Drilling yog ib txoj hauv kev siv los txuas cov kav hlau. Los ntawm cov txheej txheem steel yeeb nkab drilling, qhov tuaj yeem qhib rau ntawm cov yeeb nkab steel, kom cov bolts thiab ceev tuaj yeem ntsia tau rau ntawm cov pob qij txha thiab flanges, thiaj li ua tiav lub hom phiaj ntawm kev sib txuas.
2. Kev kho cov yeeb nkab steel: Nws kuj yog ib qho kev siv los kho cov yeeb nkab steel rau phab ntsa lossis lwm qhov chaw los ntawm cov txheej txheem steel yeeb nkab.
Kev siv hauv steel qauv hnub ci vaj huam sib luag bracke
Kev siv cov khoom siv hauv kev loj
* Xov
NPT (National Yeeb Nkab Xov) thiab BSPT (British Standard Pipe Thread) yog ob hom yeeb nkab xov.
NPT threads feem ntau siv nyob rau hauv North America thiab BSPT threads feem ntau siv nyob rau hauv cov teb chaws Europe thiab Asia.
Ob qho tib si cov qauv muaj cov xov tapered uas tsim kom nruj thaum nruj ua ke. Dav siv nyob rau hauv dej, roj, roj thiab lwm yam kav dej txuas.
2. Kev kho cov yeeb nkab steel: Nws kuj yog ib qho kev siv los kho cov yeeb nkab steel rau phab ntsa lossis lwm qhov chaw los ntawm cov txheej txheem steel yeeb nkab.
* Grooved
Roll Groove kev twb kev txuas yog ib txoj kev nrov ntawm kev sib txuas cov kav hluav taws xob tiv thaiv vim nws muaj ntau yam zoo. Nov yog qee qhov txiaj ntsig tseem ceeb:
1. Yooj yim thiab ceev installation: Roll Groove kev twb kev txuas tso cai rau kev ceev thiab yooj yim installation ntawm cov kav dej thiab fittings, vim tsis tas yuav tsum tau vuam los yog threading.
2. Kev tiv thaiv kev lag luam thiab ib puag ncig: Txoj kev sib txuas no yog tus nqi ntau dua li lwm txoj hauv kev, ua rau nws muaj kev xaiv nrov rau ntau daim ntawv thov. Nws kuj yog ib puag ncig tus phooj ywg vim nws txo cov pov tseg thiab siv tsawg dua cov peev txheej.
3. Khaws cov yam ntxwv qub ntawm cov kav dej: Roll Groove kev sib txuas tsis cuam tshuam rau cov khoom qub ntawm cov kav dej, xws li lawv lub zog, durability, thiab tsis kam mus rau corrosion.
4. Kev saib xyuas yooj yim: Yog xav tau kev saib xyuas thiab kho, Roll Groove kev sib txuas ua rau nws yooj yim rau disassemble thiab hloov cov khoom, tsis tas yuav tsum muaj cov cuab yeej tshwj xeeb lossis khoom siv.
| DN | Sab nraud txoj kab uas hla | Sealing Nto Dav ± 0.76 | Groove Dav ± 0.76 | Groove Hauv qab Diameter | |
| mm | Ua siab ntev | ||||
| 50 | 60.3 | 15.88 Nws | 8.74 ib | 57.15 Nws | -0.38 Nws |
| 65 | 73 | 15.88 Nws | 8.74 ib | 69.09 ib | -0.46 |
| 65 | 76.1 ib | 15.88 Nws | 8.74 ib | 72.26 ib | -0.46 |
| 80 | 88.9 ua | 15.88 Nws | 8.74 ib | 84.94 ib | -0.46 |
| 100 | 114.3 ib | 15.88 Nws | 8.74 ib | 110.08 Nws | -0.51 |
| 125 | 141.3 ib | 15.88 Nws | 8.74 ib | 137.63 Nws | -0.56 |
| 150 | 165.1 ib | 15.88 Nws | 8.74 ib | 160.78 Nws | -0.56 |
| 150 | 168.3 ib | 15.88 Nws | 8.74 ib | 163.96 ib | -0.56 |
| 200 | 219.1 ib | 19.05 Nws | 11.91 Nws | 214.4 ib | -0.64 Nws |
* Beveled
Txoj kab uas hla loj dua NPS 11⁄2 [DN 40] Plain-end beveled nrog xaus beveled rau ib lub kaum sab xis ntawm 30 °, +5 °, -0 °
* Plain Ends
Txiav ob qhov kawg ntawm cov yeeb nkab steel rau hauv dav hlau ntawm 90◦ mus rau axis yog qhov yuav tsum tau muaj nyob hauv ntau qhov kev lag luam uas siv cov kav dej. Qhov no feem ntau yog ua los npaj cov yeeb nkab rau vuam lossis lwm hom kev sib txuas, thiab xyuas kom meej tias qhov kawg yog tiaj thiab perpendicular rau cov yeeb nkab axis.
* Flanged
Lub flanged steel yeeb nkab yog ib hom yeeb nkab uas muaj flange txuas rau ib lossis ob qho kawg. Flanges yog cov voj voog ncig nrog lub qhov thiab bolts uas yog siv los txuas cov kav dej, li qub, lossis lwm yam khoom siv. Lub flanged steel yeeb nkab feem ntau yog ua los ntawm vuam flange mus rau qhov kawg ntawm cov yeeb nkab steel.
Flanged steel kav feem ntau siv hauv kev lag luam xws li dej, roj thiab roj, thiab kev ua tshuaj lom neeg. Lawv nyiam dua lwm hom kav dej vim tias lawv tuaj yeem ntsia tau yooj yim thiab ruaj khov heev. Cov kav dej flanged tuaj yeem tiv taus siab thiab tuaj yeem yooj yim disassembled rau kev kho lossis kho.
Cov flanges ntawm lub flanged steel yeeb nkab tuaj nyob rau hauv cov duab sib txawv thiab qhov ntau thiab tsawg kom haum rau kev sib txuas. Cov hom muaj xws li plam-on flanges, weld caj dab flanges, threaded flanges, thiab qhov (socket weld flanges).
Hauv cov ntsiab lus, flanged steel kav yog ib qho kev xaiv nrov rau ntau qhov kev lag luam vim tias lawv muab kev sib txuas ruaj khov thiab ruaj khov ntawm cov kav dej thiab cov khoom siv.
* Txiav Ntev
Dej txiav tshuab paub txog nws qhov tseeb thiab qhov tseeb, nrog rau nws lub peev xwm los tsim cov npoo du, burr-dawb.
Ib qho txiaj ntsig tseem ceeb ntawm kev siv tshuab txiav dej yog tias nws yog txoj kev txiav txias, txhais tau tias tsis muaj qhov cuam tshuam los ntawm tshav kub (HAZ) nyob ib ncig ntawm qhov txiav.
Dej dav hlau txiav kuj yog ib puag ncig tus phooj ywg, vim nws tsis tsim cov khoom pov tseg los yog emissions. Lub kaw lus tsuas yog siv dej thiab abrasive, thiab cov khoom pov tseg tuaj yeem khaws tau yooj yim thiab pov tseg ntawm kev nyab xeeb.
* Ntim thiab xa khoom
PVC Yas Ntim
Txhawm rau tiv thaiv cov kav hlau thaum lub sijhawm thauj mus los thiab khaws cia, lawv feem ntau tau ntim nrog PVC hnab yas los muab cov txheej txheem tiv thaiv uas tiv thaiv khawb, dents, thiab lwm yam kev puas tsuaj.
Ntxiv rau kev tiv thaiv cov kav hlau, PVC ntim yas kuj tseem pab kom lawv huv si thiab qhuav. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov kav dej uas yuav siv rau hauv cov ntawv thov uas qhov kev huv huv yog qhov tseem ceeb, xws li hauv cov kav dej lossis cov chaw ua zaub mov.
* Tag nrho cov pvc ntim;
* Tsuas yog cov yeeb nkab kawg pvc ntim;
* Tsuas yog cov yeeb nkab lub cev pvc ntim.
Ntoo Ntim
Txhawm rau tiv thaiv steel fittings thaum thauj thiab tuav, cov neeg siv khoom tuaj yeem xaiv cov thawv ntoo, thiab tuaj yeem ua raws li cov neeg siv khoom daim ntawv lo rau kev txheeb xyuas yooj yim.
Qhov zoo ntawm kev siv cov thawv ntoo nrog 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 pab txhawb kev yooj yim ntawm kev tuav thiab kev thauj mus los, vim tias cov thawv tuaj yeem muab sib dhos thiab ruaj ntseg ntawm pallets rau kev thauj mus los ntawm av, hiav txwv, lossis huab cua.
Kev xa khoom
Cov khoom siv hlau feem ntau yog thauj los ntawm hiav txwv, av, lossis kev thauj mus los hauv huab cua, nrog rau feem ntau ntawm cov khoom xa tawm los ntawm Tianjin ports.
Rau kev thauj mus los hauv hiav txwv, muaj ob txoj hauv kev tseem ceeb: thawv shipping lossis bulk shipping.
Kev thauj mus los hauv av feem ntau yog los ntawm kev tsheb ciav hlau lossis tsheb thauj khoom, nyob ntawm qhov chaw thiab lub tuam txhab thauj khoom siv.
* Txhawb nqa
Cov kev pabcuam ua ntej muag:
1. Cov qauv dawb: Ntev 20cm dawb steel yeeb nkab qauv nrog tus nqi xa khoom los ntawm tus neeg siv khoom.
2. Cov lus pom zoo ntawm cov khoom: siv peb cov kev paub txog cov khoom lag luam kom pom zoo rau cov neeg siv khoom.
Kev muag khoom nruab nrab:
1. Kev txiav txim mus txog qhovtwg: peb yuav ceeb toom rau cov neeg siv khoom ntawm kev tsim khoom thiab kev xa khoom ntawm lawv cov xaj los ntawm email lossis xov tooj, kom ntseeg tau tias lawv muaj kev nkag siab meej txog kev nce qib ntawm lawv cov xaj.
2. Muab cov duab soj ntsuam thiab xa khoom: peb yuav muab cov duab khoom ua ntej xa khoom rau cov neeg siv khoom kom paub meej tias lawv ua tau raws li qhov yuav tsum tau ua. Nyob rau tib lub sijhawm, peb tseem yuav ua kev soj ntsuam nruj thiab kev tswj xyuas zoo ua ntej xa khoom kom ntseeg tau tias lawv ua tau raws li peb cov qauv zoo.
Kev pab cuam tom qab muag:
1. Ua raws li cov neeg siv khoom tawm tswv yim tom qab tau txais cov khoom muag: peb muaj txiaj ntsig rau cov neeg siv khoom tawm tswv yim thiab yuav ua raws li kom nkag siab txog lawv cov kev siv thiab kev tawm tswv yim ntawm peb cov khoom, txhawm rau txhim kho lawv cov khoom zoo thiab cov kev pabcuam.
2. Tus nqi sib txawv thiab cov ntaub ntawv kev lag luam: peb nkag siab tias cov neeg siv khoom yuav ntsib kev hloov pauv hauv kev lag luam thiab kev lag luam, yog li peb yuav niaj hnub muab cov ntaub ntawv ntawm kev lag luam thiab kev lag luam zoo los pab cov neeg siv khoom nkag siab txog kev lag luam thiab kev lag luam hloov raws sijhawm, ua rau lawv paub ntau ntxiv. thiab kev txiav txim siab zoo.