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Mkpuchi AWWA C213 FBE maka Ọkụ Mmiri LSAW Steel

Nkọwa dị mkpirikpi:

Ọkọlọtọ mmebe: AWW AC213.
Ụdị nchedo corrosion: FBE (Fusion Bonded Epoxy).

Oke ngwa: Sistemụ ọkpọkọ mmiri n'okpuru ala ma ọ bụ nchara nchara.
Ọkpụrụkpụ mkpuchi: Opekempe 305 mm [12 mil].
mkpuchi agba: White, blue, isi awọ ma ọ bụ ahaziri na arịrịọ.
Uncoated ogologo nke ọkpọkọ ọgwụgwụ: 50-150mm, dabere na ọkpọkọ dayameta ma ọ bụ oru ngo mkpa.
Ụdị ọkpọkọ ígwè ọdabara: LASW, SSAW, ERW na SMLS.

Nkọwa ngwaahịa

Mkpado ngwaahịa

Ihe mkpuchi AWWA C213 FBE maka ọkpọkọ mmiri igwe

AWWA C213 ígwè mmiri ọkpọkọbụ mkpuchi FBE nke a na-etinye n'ime ime na mpụta nke ọkpọkọ ígwè maka iji mee ihe n'ime ala ma ọ bụ n'okpuru mmiri nchara ígwè mmiri mmiri.

Ihe mkpuchi a na-enye nchebe megide mmebi ma na-eme ka a na-arụ ọrụ a pụrụ ịdabere na ya nke usoro pipeline ruo ogologo oge n'ime ala dị n'okpuru ala ma ọ bụ n'okpuru mmiri.

Ụdị ọkpọ ígwè ọdabara

LSAW, SSAW, ERW,SMLS, wdg.dabere na mkpa ụfọdụ nke ọrụ ahụ.

Oke Oke

Dayameta dị n'èzí ≥ 660mm [24in].Epoxy resin lining na ịnweta ọkpọkọ maka nyocha na mmezi.

Ngwunye ọkpọkọ ígwè <660mm [24in] nwekwara ike dabara adaba, ma ọ bụrụhaala na enwere ụzọ dabara adaba iji lelee iguzosi ike n'ezi ihe nke mkpuchi dị n'ime.

Kedu ihe bụ FBE?

Fusion Bonded Epoxy (FBE)bụ otu akụkụ akọrọ ntụ ntụ thermosetting epoxy resin nke, mgbe ọkụ na-arụ ọrụ, na-emepụta mmeghachi omume kemịkalụ n'elu ọkpọkọ ígwè ka ọ na-ejigide ihe onwunwe ya.

Epoxy ntụ ntụ ga-enwe ihe ejikọtara ọnụ nke nwere otu akụkụ nke nwere resin epoxy, ihe na-agwọ ọrịa, ihe na-eme ka ọkụ, ihe ndochi, agba agba, ihe na-achịkwa eruba, na ihe mgbochi UV.

AWWA C213 Njirimara anụ ahụ nke ihe ntụ ntụ epoxy

Akụrụngwa ga-agbaso ihe achọrọ nkeIwu Ịṅụ Ọgwụ Nchekwa.

Mgbe achọrọ nrubeisi nke NSF, ihe ndị na-akpakọrịta na mmiri a na-aṅụ mmanya ga-enweta asambodo na NSF/ANSI/CAN Standard 61.

Okpomọkụ arụ ọrụ kacha

N'ozuzu, oke ngwa ngwa okpomọkụ maka mkpuchi bụ ihe dịka65°C (150°F).Ọzọkwa, ndụ ọrụ nke mkpuchi na-ebelata site n'ịnọgide na-enwe okpomọkụ dị elu ruo ogologo oge.

Usoro nrụpụta

Mgbe etinyere ya na isiokwu ekpo ọkụ site na ịgbasa electrostatic, akwa mmiri ma ọ bụ ikuku ikuku wee gwọọ ya, ntụ ntụ epoxy na-emepụta mkpuchi mkpuchi otu.

Arụmọrụ akọwapụtara dị ka ndị a:

Nyocha Pipe na tupu ọgwụgwọ

Elu agaghị enwe ntụpọ na-emetụta ngwaahịa ikpeazụ, dị ka burrs, gouges, na weld spatters, nke nwere ike wepụ site na ájá.

na elu agaghị enwe nke apịtị, agba igwe igwe, wax, coal tar, asphalt, mmanụ, griiz, chlorides, na ihe ọ bụla ọzọ si mba ọzọ ma ọ bụ combustible conteminants nke nwere ike na-enwu na fusion bonded epoxy ngwa okpomọkụ.Wepu ebe a na-ahụ anya nke mmanụ na griiz site na iji ihe mgbaze na-ahapụ ihe fọdụrụnụ.

Nkwadebe elu

Jiri ájá kpọrọ nkụ hichaa nchara n'elu site na ọkpọkọ ígwè.

Ihe chọrọ gburugburu ebe mgbawa: Mgbe okpomọkụ nke ọkpọkọ ígwè dị 3°C (5℉) n'elu ebe igirigi dị.

Ịdị ọcha nke dị n'elu: Elu nke ọkpọkọ ígwè a na-ekpochapụ ga-adị ka SSPC-SP10/NACE No. 2.

Ọdịmma dị n'elu: Omimi ọka arịlịka na oke 51-102 μm (2.0-4.0 mil) tụrụ dịka ASTM D4417 siri dị.Enwere ike iji ihe nrịbama arịlịka ma ọ bụ mita ụkpụrụ arịlịka tụọ nke a.

Ọkpụkpụ dị n'elu nke dị omimi ma ọ bụ nke na-emighị emi ga-emetụta arụmọrụ nke mkpuchi FBE ikpeazụ.

Cheta na: Biko mara na oge etiti oge n'etiti mmecha nke descaling na mkpuchi usoro iji zere nchara nchara.

Nchacha ikuku

A ga-eji ikuku mkpakọ na-enweghị mmetọ mee ka uzuzu, grit, ma ọ bụ ihe mba ọzọ ndị ọzọ sitere na mkpụrụ a kwadebere nke ọkpọkọ n'ụzọ na-adịghị emetụta elu ahụ ehichapụrụ, ọkpọkọ ndị ọzọ a kpochara, ma ọ bụ ọkpọkọ ka a ga-ekpuchi ma ọ bụ kpuchie ya.

Ọkụ kpo oku

Kpoo ọkpọkọ nchara na-eji isi iyi ọkụ nke na-agaghị emetọ n'elu ọkpọkọ, mana agaghị agafe 274°C (525°F).

Okpomọkụ dị elu nwere ike gbanwee njirimara anụ ahụ yana njirimara siri ike nke igwe.

Enwere ike tụọ okpomoku dị elu nke ọkpọkọ ígwè site na iji pen temometa ma ọ bụ temometa elele anya.

Ọ bụrụ na agba na-acha anụnụ anụnụ pụtara, ọkpọkọ ahụ kwesịrị ịdị jụụ ka ọ bụrụ ọnọdụ okpomọkụ ma gbawaa ọzọ.

Usoro mkpuchi

A na-etinye ntụ ntụ FBE n'otu n'otu n'elu ọkpọkọ igwe na-ekpo ọkụ site n'ịgbaze akwa, spraying electrostatic, ma ọ bụ ikuku ikuku.

Agaghị ekpuchi oghere, mgbawa, ma ọ bụ mgbọrọgwụ elu FBE.

Mgbe a na-eji nkwonkwo rọba-gasket ma ọ bụ ihe eji arụ ọrụ, epoxy ga-agbatị ruo na nsọtụ ọkpọkọ ma ọ bụrụ na onye zụrụ ya akọwapụtaghị ya.

Na-ajụ oyi

Enwere ike iji ikuku ma ọ bụ mmiri mee oyi.

AWWA C213 PQT (Nkwalite chọrọ nke sistemụ epoxy)

PQT: Zụrụ AWWA C213 Water Transmission Steel Pipe n'obere nnwale tupu ịzụrụ oke.A na-eme ihe nrịbama ma ọ bụ nnwale iji hụ na ngwaahịa ma ọ bụ sistemu tozuru oke na njirisi arụmọrụ.
Nke a gụnyere nnwale ụlọ nyocha, nyocha arụmọrụ yana usoro ndị ọzọ.

AWWA C213 Prequalification chọrọ nke usoro epoxy

Nleba ngwaahịa emechara

Ọdịdị

The epoxy ga-adịkarị ire ụtọ.

Epoxy agaghị enwe ọnya, mgbawa, afụ, delamination, ma ọ bụ ntụpọ ndị ọzọ a na-ahụ anya.

Agaghị atụle ezughị okè ịchọ mma, dị ka sags, dimpling, scuffing, curtaining, over spray, na/ma ọ bụ oroma-peel, agaghị atụle ihe kpatara ịjụ ma ọ bụ rụkwaa ya.

Nyocha eletrik maka ịga n'ihu (nnwale ezumike obere voltaji)

Ekwesịrị ịlele n'ihu mkpuchi mkpuchi dịka NACE SPO490 siri dị.

Maka liningna ọkpụrụkpụ nke 20 mils (508 um) ma ọ bụ ihe na-erughị ya, a ga-eji ihe nchọta ezumike dị ala nke edobere na kacha nke 75 V ka a ga-eji dịka NACE SPO188 siri dị.

Ọ bụrụ na ọnụ ọgụgụ nke ezumike karịrị ọnụ ọgụgụ dị n'okpuru mkpuchi ahụ ga-adị mkpa ka ewepụ ma megharịa ya.

Dayameta dị n'èzí (OD) <14in (360 mm), 1 ezumike/mita (3 ft).

Dayameta dị n'èzí (OD) ≥ 14in (360 mm), 1 ezumike/25 ft² (2.3 mm²).

Were ezumike ndị a nyochara, rụzie ha ma nwalee ha ọzọ.

Adhesion

Enwere ike nweta nchichi nke epoxy gwọrọ n'elu ọkpọkọ site na ịkwanye agụba dị nkọ site na epoxy n'elu ọkpọkọ ahụ na iji ihe na-akụ ihe na-eme mgbalị iji wepụ epoxy n'elu ọkpọkọ ahụ.

Ekwesịrị ịrapagidesi ike na ọkpọkọ ahụ nke ọma na ọkpọkọ ahụ wee guzogidesie ike ịkọ ihe wee nwee onwe ya pụọ ​​​​na irighiri ihe na-emebi emebi wee zuteogo adhesion nke 1-3.

AWWA C213 FBE mkpuchi maka LSAW Steel Water Pipe-Adhesion

Ọkpụrụkpụ

Ọkpụrụkpụ nke ihe nkiri mkpuchi agwọ ọrịa ekwesịghị ịbụ ihe na-erughị 305um (12mil), gụnyere eriri weld.

Na ụdị ochie nke AWWA C213, enwere oke nke 406 um (16 mils) mkpuchi mkpuchi kachasị, nke ewepụrụ na ụdị kachasị ọhụrụ n'ihi ihe isi ike iji nweta ihe a chọrọ n'oge usoro ọgbọ n'ezie.

Nnwale ndị ọzọ

Enwere ike ịkọwa ule ndị ọzọ iji chọpụta arụmọrụ nke epoxy.

1. Cross-ngalaba porosity.

2. Interface porosity.

3. Thermal analysis (DSC).

4. Nsogbu na-adịgide adịgide (bendability).

5. Mmiri mmiri.

6. Mmetụta.

7. Cathodic disbondment ule.

Ịka akara

A ga-ede ya nke ọma na aha onye nrụpụta, ụdị ihe, batch ma ọ bụ nọmba nza, ụbọchị nrụpụta na ọnọdụ nchekwa.

Ngwa

tumadi maka ọkpọkọ mmiri

A na-ejikarị ihe mkpuchi dị n'èzí na-echebe ọkpọkọ site na mmebi gburugburu ebe obibi, ebe a na-eji ihe mkpuchi ime eme ihe iji gbochie mmetọ mmiri, belata nkwụsị nke esemokwu, na ịgbatị ndụ ọkpọkọ.Ihe mkpuchi ndị a na-enyere aka hụ na ntụkwasị obi na ịdịte aka nke usoro ọkpọkọ, na-agbaso ụkpụrụ ịdị ọcha, ma belata mkpa nlekọta.

Ụkpụrụ emetụtara

ANSI/AWWA C203: Coal-Tar mkpuchi mkpuchi na mkpuchi maka ọkpọkọ mmiri igwe.

ANSI/AWWA C209: Ihe mkpuchi teepu maka ọkpọkọ mmiri igwe na ihe ndozi.

ANSI/AWWA C210: Ihe mkpuchi mmiri-Epoxy na ihe mkpuchi maka ọkpọkọ mmiri na ihe ndị dị nchara.

Uru Anyị

Steel Botop bụ ezigbo WeldedCarbon Steel Pipeonye na-emepụta ihe na onye na-ebubata ya sitere na China, bụkwa onye na-ahụ maka ọkpọkọ igwe anaghị agba nchara.

Botop Steel nwere nkwa siri ike maka ịdịmma yana mejuputa njikwa siri ike na nnwale nahụ na a pụrụ ịdabere na ngwaahịa.Ndị otu ya nwere ahụmahụ na-enye ngwọta ahaziri iche na nkwado ndị ọkachamara, na-elekwasị anya na afọ ojuju ndị ahịa.Anyị na-atụ anya ịrụ ọrụ na gị.


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