Chii chinonzi Hot Dip Galvanizing?
Kupisa dip galvanizing inzira-yekugadzira ngura yekudzivirira umo simbi yakacheneswa kana simbi inonyudzwa zvizere mubhavhu rezinc rakanyungudutswa, rinowanzochengetwa pa815–850℃F (435–455 dhigirii)ine zinc bath chemistry inotsanangurwa pasi apaASTM B6. Kana simbi yabata zinc yakanyungudutswa, zingi inobatwa nesimbi yoita zinc-aron alloy layers ine zinc rekunze. Iyi metallurgical reaction ndiyo musimboti mutsauko pakati pekupisa dip galvanizing uye yakapfava pamusoro pekuputira.
Nekuda kwekuti maitirwo acho anoitwa mushure mekucheka, kucherwa, welding, nekugadzira, kupisa{0}}kunyudzwa kwemalata kunodzivirira kumucheto, makona, mabhaudhi maburi, nzvimbo dzeweld, mabhuraketi, uye yakaoma yakagadzirwa geometry muchikamu chimwe chekunyudza. Izvi zvinoita kuti zvikodzere zvikamu zvesimbi zvinoratidzwa nemhepo yekunze, hunyoro hwechirimwa, munyu wemumugwagwa, mvura inopfachuka, uye nguva refu yekugadzirisa, kusanganisira mafuremu ezvimiro, zvinotsigira pombi, simbi dzinorinda, zvishandiso zvekushandisa, uye masimbi akagadzirwa.
Hunhu hwekupisa-dip galvanized steel hautariswe nekupenya chete. Kuongorora kwehunyanzvi kunowanzo tarisa pakukora, kuenderera kwepamusoro, kunamatira, nzvimbo dzisina kana kuvharwa, mamiriro ekugadzirisa, uye chiyero chinoshanda senge.ASTM A123, ASTM A153, ASTM F2329, ASTM A780, kanaISO 1461. Mukutaura, kupisa dip galvanizing kunosarudzwa kana simbi inoda kuyerwa, yakasimba zinc coating iyo inogona kudzivirira chaiyo yakagadzirwa nzvimbo pane kungopa kutaridzika kwakachena.
Kupisa-Dip Galvanizing Inoshanda Sei?
Kupisa-dip galvanizing inoshanda kuburikidza neinodzorwa metallurgical reaction pakatizinc yakanyungudutswa uye nzvimbo yakachena yesimbi. Mushure mekubvisa mafuta, kunhonga, uye kuyerera, pamusoro pesimbi haina mafuta, ngura, mill scale, uye oxides, zvichiita kuti zinc yakanyungudutswa ibatane nesimbi isina chinhu zvakananga. Kana chikamu chacho changopinda muzinc kettle, zinc inonyorovesa pamusoro uye inotanga kupararira muchikamu chekunze chesimbi.
Panguva yekunyudzwa, zinki nesimbi zvinopindirana kuita nhevedzano yezinc-iron intermetallic layerszvinokura kubva pamusoro pesimbi zvichienda kunze. Kana chikamu chacho chikabviswa, chidimbu chezinc yakanyanya kuchena chinoramba chiri kunze uye chinoomesa senzvimbo yekupedzisira. Mhedzisiro iyi yekuvhara sisitimu yakasungirirwa kune simbi nekuita, kwete kungobatanidzwa nemuchina adhesion, iyo inobatsira iyo yekupfekedza kutevera mipendero, makona, weld zones, mabhoti maburi, uye mamwe madhizaini akagadzirwa kana kuchenesa, venting, uye mvura inodzorwa zvakanaka.
Iyo nzira inogona kunzwisiswa mumatanho matatu:
- Nzvimbo yesimbi inocheneswa nemakemikarisaka zinc inogona kubata simbi isina chinhu.
- Zinc yakanyungudutswa inopindirana nesimbiuye inoita zinc-iron intermetallic layers.
- Kuvhara kunodzivirira simbikuburikidza nedziviriro, kuchengetedzwa kwekuzvipira, uye-nguva refu zinc patina kugadzirwa.
Ichi ndicho chikonzero kugadzirira kwepamusoro kwakakosha. Kana mafuta, ngura, mill scale, pendi, welding slag, kana oxide ikaramba iri pamusoro, zinc haigoni kuumba inoenderera ichiita layer. Mhedzisiro yacho inogona kunge yakashama makwapa, kusakura zvakanaka kwekuputira, kana kusasimba kuenderera.
Kupisa-dip galvanized steel inodzivirira base simbi nenzira dzakawanda:
- Barrier protection:iyo zinc yekuputira inoparadzanisa simbi kubva kuokisijeni, mwando, uye zvinosvibisa media.
- Cathodic protection:kana jasi racho rikakwenya, zinc corrodes zviri nani uye inobatsira kudzivirira simbi iri pedyo yakafumurwa.
- Patina kudzivirira:mushure memamiriro ekunze, iyo zinc inogadzira zvigadzirwa zvakagadzikana zvekuora zvinononoka kukora.
Kusanganiswa uku ndiko kunoita kuti dip rinopisa rive rakasiyana kubva kune akawanda akaonda zinc coatings kana pendi masisitimu.
Kupisa Dip Galvanizing Maitiro Matanho
Kupisa dip galvanizing kunotanga nekugadzirira pamusoro, nekuti zinc yakanyungudutswa inogona chete kuita nemazvo nesimbi yakachena. Oiri, ngura, mill scale, weld slag, kana hunyoro hwakabatwa hunogona kudzivirira zinc kunyorova uye kutungamirira kunzvimbo dzisina chinhu kana kukura kusina kuenzana. Mushure mekuchenesa nekushanduka-shanduka, simbi inonyudzwa muzinc yakanyungudutswa, apo zinc-aron alloy layers inoita pamusoro. Kuongorora kwekupedzisira kunobva kwatarisa kana kukoira kuri kuenderera, kuyerwa, uye kutenderwa kushanda.
| Danho | Process | Chinangwa cheTechnical |
|---|---|---|
| 1 | Degreasing / caustic kuchenesa | Inobvisa mafuta, girisi, tsvina, uye organic kusvibiswa |
| 2 | Pickling | Inobvisa ngura nechigayo kubva panzvimbo yesimbi |
| 3 | Rinsing | Inoderedza kutakurwa kwemakemikari-pakati pematangi |
| 4 | Fluxing | Inobvisa maokisi emwenje uye inobatsira yakanyungudutswa zinc kunyorovesa simbi |
| 5 | Kuomesa / preheating | Inoderedza hunyoro usati wanyudzwa |
| 6 | Kunyudzwa mu zinc yakanyungudutswa | Inogadzira zinc-iron alloy layers kuburikidza nemetallurgical reaction |
| 7 | Kubvisa uye drainage | Inobvisa yakawandisa zinc uye inodzora coating buildup |
| 8 | Kutonhora | Inodzikamisa coating surface |
| 9 | Inspection | Inotarisa ukobvu hwekuputira, kutaridzika, nzvimbo dzisina chinhu, uye nzvimbo dzekugadzirisa |
Dhawunirodha:Hot Dip Galvanizing process Checklist
Mumabasa mazhinji ekugadzira mabhechi, simbi yakagadzirwa inonyudzwa mushure mekucheka, kukwesha, kudhirowa, kana kugadzira. Izvi zvakakosha nekuti mipendero, maburi, nzvimbo dzakasungirirwa, uye nzvimbo dzakagadzirwa zvese zvinogona kugamuchira zinc yekumisikidza mune imwe kunyudzwa kutenderera, chero dhizaini ichibvumira kufefetera uye kudhonza mvura.
HDG Coating Layers uye Corrosion Dziviriro
Iyo yekuputira chimiro ndiyo inonyanya kukosha tekinoroji poindi mukupisa dip galvanizing. Kupisa-kunamatidza kunonyudza harisi rimwe firimu rezinc chairo. Iro iine layered system inoumbwa nekupatsanurwa uye kuita pakati pe zinc ne iron. Yakajairika HDG coating inosanganisira zinc-aron alloy layers pedyo nepamusoro pesimbi uye zinc layer yakachena kunze.
| Coating Zone | Typical Layer | Hunhu Hukuru | Function |
|---|---|---|---|
| Base simbi | Simbi substrate | Structural material | Inopa simba uye mutoro wekutakura |
| Inner alloy layer | Gamma layer | Zinc yakatetepa-iron reaction layer pedyo nesimbi | Inogadzira yekutanga metallurgical bond |
| Pakati alloy layer | Delta layer | Dense zinc{0}}iron alloy layer | Inowedzera kuoma uye kusagadzikana kweabrasion |
| Outer alloy layer | Zeta layer | Zinc -rich alloy layer | Inotsigira coating ukobvu uye kusimba |
| Kunze kwekunze | Eta layer | Kunyanya yakachena zinc | Inopa mamiriro ekunze uye kudzivirira kwechibayiro |
| Weathered surface | Zinc patina | Yakagadzikana zinc corrosion zvigadzirwa | Inoderedza kuwedzera kuora mukuratidzwa kwemhepo |
Dhaunirodha:Hot-Dip Galvanized Coating Anatomy uye Corrosion ProtectionGuide
Zinc-aron alloy layers dzakaoma kudarika zinc chaiyo uye dzakabatanidzwa zvakasimba nesimbi. Izvi zvinobatsira iyo yekupfeka kuramba kubata kukuvadzwa, kutakura abrasion, kuisa kubata, uye kupfeka kwenzvimbo pamakona kana makona. Iyo yekunze Eta layer yakapfava uye yakawanda ductile, iyo inobatsira kutora diki mhedzisiro uye inopa iyo huru zinc pamusoro pemamiriro ekunze.
Chikonzero Nei Chimiro Chine Mutsara Chinokosha
Iyo yakaturikidzana inopa inopisa-simbi yakanyungudutswa yakawanda yakanaka:
- Iyo yekupfeka inosungirirwa kune simbi kuburikidza ne metallurgical reaction.
- Makona nemapendero anowanzo gamuchira kuvharika kwakanaka nekuti chikamu chose chakagadzirwa chinonyudzwa.
- Diki coating kukuvadzwa hakungo fumura simbi kukurumidza kuora.
- Zinc inogona kupa kudzivirira kwechibairo kwakatenderedza madiki madiki kana nzvimbo dzakachekwa.
- Iyo yekupfekedza inogona kuyerwa, kuongororwa, uye kutsanangurwa nezviyero.
Ichi chivakwa chakaturikidzana zvakare chikonzero nei HDG yekupfekedza kutaridzika inogona kusiyana. Zvimwe zvikamu zvinopenya uye zvakapetana, nepo zvimwe zvisingaite grey kana matte. Kusviba kwe grey hakungorevi kuti kusanaya zvakanaka. Kemikari yesimbi, kunyanya silicon nephosphorus content, inogona kuita kuti zinc{3}}ikurumidze kukura kweiron alloy uye kugadzira kukora, kusviba.
Zinc Patina uye-Term Protection
Mushure mekunge-dip galvanized steel yaiswa mumhepo, zinc yekunze inotanga kuita neoxygen, mwando, uye carbon dioxide. Nokufamba kwenguva, zinc patina yakagadzikana inoumba pamusoro. Iyi patina inoderedza kuparara kwezinc uye inowedzera hupenyu hwebasa.Zvisinei, simbi ichangoburwa inofanira kuchengetwa zvakanaka. Kana zvikamu zvakaturikidzana zvakasimba mumamiriro ekunyorova pasina kuyerera kwemhepo, ngura chena inogona kuumba. Ngura chena inowanzoenderana neyakavharirwa mwando uye kusafefetera zvakanaka panguva yekuchengetera kana kutakura, kwete hazvo kutadza kweiyo galvanizing process pachayo.
Kune mapurojekiti anosanganisira kuchengetera kunze, kufambiswa kwemugungwa, kana nzira refu dzekutakura, zvikamu zvemarara zvinofanirwa kurongedzerwa nekuchengetwa ne:
- nzvimbo yekudhonza mvura pakati penzvimbo
- dry storage pazvinogoneka
- kutenderera kwemhepo kwakanaka
- kuparadzaniswa nemakemikari ane utsinye
- kuongorora kusati kwaiswa
Kupisa Dip Galvanizing Standards uye Kuongorora
Kupisa dip galvanizing kunofanirwa kutsanangurwa uye kuongororwa zvinoenderana nechiyero chakakodzera. Zviyero zvakasiyana zvinoshanda kune zvimiro zvesimbi, hardware, reinforcing bar, threaded fasteners, uye nzvimbo dzekugadzirisa.
| Standard | Typical Scope |
|---|---|
| ASTM A123 / A123M | Zinc inopisa-inonyudza marata pane zvigadzirwa zvesimbi nesimbi |
| ASTM A153 / A153M | Zinc yekupfekedza pane simbi uye simbi Hardware |
| ASTM A767 / A767M | Zinc-yakavharidzirwa masimbi ekusimbisa |
| ASTM F2329 / F2329M | Inopisa-dip zinc coating ye carbon and alloy steel bolts, screws, washers, nzungu, and threaded fasteners |
| ASTM A780 | Kugadziriswa kwenzvimbo dzakakuvadzwa uye dzisina kuvharwa nemarara |
| ISO 1461 | Dip inopisa marata pamidziyo yakagadzirwa nesimbi nesimbi |
Kuongorora hakusi kungoona chete. Kuongororwa kweHDG kunowanzo sanganisira kuyerwa kwekuyerwa, kuongororwa kwechitarisiko, kushama nzvimbo kutarisa, kugadzirisa ongororo, uye kusimbisa kuti madhiraini kana madhigirii emhepo haakonzeri kushandiswa kwakarongwa.
Zvinhu zvinozivikanwa zvekuongorora zvinosanganisira:
- Coating ukobvu:kuyerwa nemagineti ukobvu geji kana dzimwe nzira dzinogamuchirwa.
- Chitarisiko chepamusoro:yakatariswa kushata, mapundu, kumhanya, dota, marara, kana kuwanda kwakanyanya.
- Nzvimbo dzakaoma:yakaongororwa kuti ione kana kugadziriswa kunodiwa.
- Kunamatira:yakatariswa kana ichidikanwa neyakajairwa chiyero kana purojekiti yakatarwa.
- Nzvimbo dzine thread:yakadzokororwa kuti ikwane mushure mekupfekedzwa uko mabhaudhi, nzungu, kana zvikamu zvakarukwa zvakabatanidzwa.
- Kugadzirisa nzvimbo:yakagadziriswa maererano neyakatsanangurwa nzira yekugadzirisa uye maitiro ekugamuchira.
Kune akagadzirwa simbi, ukobvu zvinodiwa kazhinji zvinoenderana simbi ukobvu uye zvinhu chikamu. Tsanangudzo yakajeka inofanira kutsanangura zvinopfuura zvinodikanwa zvekugadzira; inofanira kutaura chiyero chinoshanda, rudzi rwechigadzirwa, chiyero chekuongorora, uye chero nzvimbo yakakosha kana mamiriro egungano.
Kupisa Dip Galvanizing vs Mamwe Zinc Coatings
Haasi ese galvanized simbi ane akafanana coating chimiro. Izwi rekuti "galvanized" rinogona kureva nzira dzinoverengeka dzekupfeka zinc, asi kusimba kwavo, ukobvu hwekuputira, kuchengetedzwa kwemupendero, uye kuita sevhisi kunogona kusiyana zvakanyanya.
| Item | Kupisa{{0}Dip Galvanizing | Electro-Galvanizing / Zinc Plating | Pre-Galvanized Steel |
|---|---|---|---|
| Coating nzira | Simbi yakagadzirwa inonyudzwa mu zinc yakanyungudutswa | Zinc inoiswa ne electrochemical process | Simbi yesimbi kana chubhu inoputirwa isati yagadzirwa |
| Coating chimiro | Zinc-iron alloy layers pamwe nekunze zinc layer | Mutete wakaiswa zinc layer | Fekitori inoenderera{0}yakaisa zinc coating |
| Bonding | Metallurgical reaction | Surface deposition | Factory coating isati yacheka kana kuumba |
| Kudzivirira kumucheto | Zvakanaka pane zvakanyudzwa zvakagadzirwa zvikamu | Yakaganhurirwa pane inopinza geometry | Micheto yakachekwa inogona kuratidza simbi isina chinhu |
| Kushandiswa kwakajairika | Simbi yekuvaka, zvitsigiro zvepombi, magadhi, mativi akagadzirwa ekunze | Zvikamu zvemukati, zvidiki, zvinoonekwa-zvinhu zvinonzwa | Sheet, light chubhu, akaumbwa zvigadzirwa |
| Main ganhuriro | Kettle saizi, venting, drainage, coating buildup | Lower heavy{0}duty corrosion reserve | Nzvimbo dzakasungwa kana dzakachekwa dzingada kuchengetedzwa kwakawedzerwa |
Dhaunirodha:Hot-Dip Galvanizing vs Mamwe Zinc Coatings
Kupisa dip galvanizing kazhinji kunofarirwa kana chikamu chekupedzisira chakagadzirwa chinofanirwa kuchengetedzwa mushure mekucheka, kucheka, kuchera, kana kugadzira. Pre-galvanized steel ingakodzera kureruka-mashizha ebasa kana machubhu zvigadzirwa, asi macheto nenzvimbo dzakaiswa weld inoda kutariswa. Electro-galvanizing uye zinc plating zvinogona kupa kupera kwakapfava, asi anowanzo shandiswa panobvumirwa kupfekwa kutetepa.
Ndekupi Kupisa Dip Galvanized Simbi Inoshandiswa?
Kupisa dip galvanized simbi inoshandiswa uko kudzivirira ngura kunofanirwa kurarama kunze chaiko kana kuratidzwa kwemaindasitiri. Mashandisirwo akanyatsokodzera ndeaya anonetsa kupenda patsva, asingakwanise kupinda, kana nzvimbo yesimbi ingave iine mwando, mabrasion, kana{1}}nguva refu.
Mamiriro ekushandisa akajairika anosanganisira:
- Mafuremu ekunze ekunze:nzvimbo dzekupaka, mapuratifomu, masitepisi, njanji dzemaoko, uye mafuremu ekutsigira anoratidzirwa kunaya, mwando, uye kusvibiswa kwemhepo.
- Pipe racks uye pombi zvinotsigira:mabhuraketi, masadhi, ma hangers, uye simbi yekutsigisa inoshandiswa muzvirimwa umo kudzika, mvura inopfachuka, uye kukuvadzwa kwekupfeka kunogona kuitika panguva yekuisa.
- Highway components:magadhi, zvikwangwani, mapango ekuvheneka, mabhiriji ekuisa, uye zvipingamupinyi zviri pachena kumvura yemumugwagwa, huruva, munyu, uye kugadzirisa.
- Utility uye simba zvimiro:transmission tower parts, mapango, cross arms, uye hardware zvakaiswa munzvimbo dzakashama uko kugaro pendi kusingaite.
- Yakagadzirwa simbi assemblies:base plates, welded brackets, frames, and hollow sections uko maedge, welds, nemaburi akaboorwa zvinoda post{0}}kugadzirwa kuchengetedzwa.
Kune pombi yesimbi, chubhu, uye makomba makomba, dhizaini ruzivo rwunonyanya kukosha. Zvikamu zvakavharwa zvinofanirwa kubvumira mhepo uye zinc yakanyungudutswa kufamba zvakanaka. Pasina kufefetera kwakaringana uye kwemvura, kumanikidzwa kwakasungwa, kuchengetwa kweasidhi, kana kupfeka kusina kukwana kunogona kuitika. Zvemapurojekiti ekupa pombi,inopisa-pombi yesimbi yakanyudzwainofanira kuongororwa pamwe chete nepiipi standard, zinc coating inodikanwa, yekupedzisira mhando, nzira yekurongedza, uye magwaro ekuongorora.
Dhizaini uye Manotsi eKugadzira Pamberi Pekupisa Dip Galvanizing
Kupisa dip galvanizing inzira yekunyudza yakazara, saka dhizaini yechikamu inobata zvakananga kunaka kwekupfeka uye kuchengetedzeka. Imwe-yakagadzirwa marata inobvumira zvinwiwa zvekuchenesa, flux, mhepo, uye zinc yakanyungudutswa kupinda nekudonha pasina kuteya mvura kana kudzvanywa.
Zvikamu zvakakosha zvekugadzira zvinosanganisira:
- Hollow zvikamu zvinoda saizi chaiyomaburi uye maburi emvura.
- Nzvimbo dzakaturikidzana uye maburi akasimba anogona kuteya makemikari ekuchenesa kana unyoro.
- Weld slag, pendi, mafuta, uye zvinorema mamaka zvinofanirwa kubviswa zvisati zvaitwa.
- Shinda, maburi chaiwo, uye masiraidhi anotsvedza anoda mvumo yekuvaka.
- Magungano mahombe anofanirwa kuenderana neketero yekubatisa kana kugadzirwa kuti ienderere mberi.
- Welding kana kugaya mushure mekurovera kunobvisa kuchengetedzwa kwenzvimbo uye kunoda kugadziriswa.
- Zvisimbiso{{0}masesesheni ane simbi anofanirwa kuongororwa zvine hungwaru kudzivirira mhepo kana ngozi yekuputika panguva yekunyudzwa.
Kune akaomesesa mafuremu, pombi zvinotsigira, uye tubular zvimiro, galvanizing dhizaini inofanirwa kuongororwa isati yagadzirwa. Kupinza mhepo kwakaringana uye kudonhedza mvura hakusi zvizorwa; zvinokanganisa kuenderera mberi kwekupfeka, kuchengetedzwa kwevashandi, kukwana kwechimiro, uye kugamuchirwa kwekupedzisira.
Zvakanakira uye Kuganhurirwa kweHot Dip Galvanizing
Kupisa dip galvanizing kunokosheswa nekuti inopa yakasimba, inotarisika, uye yakaderera-maintenance corrosion protection system. Kuita kwayo kunobva ku zinc-iron alloy structure uye kuzvipira kwe zinc.
Zvakanakira
- Metallurgically bonded coating nekunamatira kwakasimba
- Zinc-iron alloy layers isingabatike nekupwanya
- Dziviriro yeBarriers pamwe necathodic kuchengetedza
- Kuvhara kwakanaka pamakona, makona, welds, uye maburi mushure mekugadzirwa
- Inokodzera akawanda ekunze uye maindasitiri simbi zvikamu
- Kudzikira kudiwa kwekugadzirisa kana zvichienzaniswa nemasisitimu mazhinji ependi{0}chete
- Kuzivikanwa zviyero zvekuvharisa ukobvu, kugadzirisa, uye kuongorora
Kuganhurirwa
- Chikamu saizi inoganhurwa nehukuru hwekettle uye kugona kubata.
- Kemikari yesimbi inogona kukanganisa ruvara rwekupfeka, ukobvu, uye kuumbwa kwepasi.
- Vhara-zvinoshivirira zvingada machining kana kuchenesa shinda mushure mekunatsa.
- Zvikamu zvakavharwa zvinoda kupinza mhepo kwakaringana uye mvura.
- Ngura chena inogona kuitika kana zvikamu zvitsva zvemarara zvakachengetwa zvakanyorova pasina kutenderera kwemhepo.
- Welding, kucheka, kana kukuya mushure mekuputira kunobvisa chinodzivirira mukati menzvimbo.
FAQ
01.Kupisa kwakanyanyisa here-kupeta marata kunogara kuri nani?
02.Sei inopisa-inonyudza simbi dzimwe nguva ichiita seyakasvibira?
03.Kupisa-kunyika ngura yesimbi panguva yekuchengeta kana kutumira?
04.Chii chinofanira kuongororwa usati wataura inopisa dip galvanizing?
Certifications
CE Certificate
ISO 9001 Chitupa
API Q1 Chitupa
ABS Chitupa
AP-5L Chitupa
API-5CT Chitupa
