Tianjin Brisk Metalwork Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm astm a53 qib b erw steel yeeb nkab dej hauv Suav teb. Peb muaj lub ntiaj teb- cov cuab yeej tsim khoom thiab muaj peev xwm tsim tau zoo. Thov koj xav tias dawb mus yuav cov khoom ruaj khov astm a53 qib b erw steel yeeb nkab dej los ntawm peb lub hoobkas.
Tianjin Brisk Steel yog ib qho ntawm ASTM A53 Qib B ERW Steel Pipe Water Supply hauv Suav teb. Peb cov khoom raug xa tawm mus rau Middle East, Southeast Asia, Europe, New Zealand, thiab lwm thaj chaw.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov hu rau peb thiab xa koj daim ntawv teev npe.
Qib A lossis Qib B - thiab vim li cas nws tsis yog lus nug lub zog xwb
A53 suav nrog ob qib, thiab rau kev pabcuam dej kev xaiv feem ntau yog ua los ntawm qhov tsis ncaj ncees lawm. Qib A (30,000 psi yam tsawg kawg nkaus tawm los) thiab Qib B (35,000 psi yam tsawg kawg nkaus tawm los) yog ob qho tib si niaj hnub muaj zog txaus rau kev ua haujlwm siab pom nyob rau hauv cov khoom siv - sab piping - feem ntau ntawm cov kab no khiav tau zoo nyob rau hauv qib ob qhov kev ntsuas muaj peev xwm, yog li lub zog ib leeg tsis tshua muaj kev txiav txim siab ib leeg.
Dab tsi tiag cais lawv rau dej -kev pabcuam kev sib cuag yog chemistry, tshwj xeeb tshaj yog cov khoom seem txwv:
| Element | Qib A max | Qib B max | Qhov cuam tshuam rau kev siv dej |
|---|---|---|---|
| Cov pa roj carbon | 0.25% | 0.30% | Siab dua C hauv Qib B me ntsis nce hardenability - cuam tshuam yog tias teb- xov me me- tho cov yeeb nkab |
| Manganese | 0.95% | 1.20% | Cov teebmeem me me ntawm weldability ntawm cov qib no |
| Phosphorus | 0.05% | 0.05% | Tib yam txwv ob qib - tswj pitting-corrosion susceptibility |
| Sulfur | 0.045% | 0.045% | Tib yam txwv ob qib - tswj pitting-corrosion susceptibility |
Qhov kev tiv thaiv corrosion- qhov txwv tsis pub muaj (P thiab S) zoo ib yam thoob plaws ob qib - yog li los ntawm cov dej ntshiab- tiv tauj qhov pom kev ruaj khov, Qib A thiab Qib B ua tib yam. Qib B tau qhia ntau zaus rau cov dej xau, feem ntau vim cov mills stock nws ntau tas li nyob rau hauv tag nrho cov loj thiab vim hais tias feem ntau cov khoom siv - sab specs default rau nws kom sib xws nrog kev sib kis-sab yeeb nkab ntawm tib qhov project, tsis yog vim corrosion los yog kev nyab xeeb kom zoo dua. Yog tias koj qhov spec tsis hu tawm qib thiab tus nqi tseem ceeb ntawm cov kab me me, nws tsim nyog nug koj tus kws ua haujlwm seb qib A puas tau ua ntej defaulting rau B.
Dab tsi "sib ntsibASTM A53"tsis qhia koj txog kev nyab xeeb dej haus
Qhov no yog qhov sib txawv uas ua rau feem ntau rov ua dua ntawm kev xaj dej: A53 yog tus qauv siv tshuab thiab qhov ntev. Nws hais tias tsis muaj dab tsi txog seb cov yeeb nkab lossis nws cov hauv ob sab phlu muaj kev nyab xeeb rau kev sib cuag nrog cov dej npaj rau tib neeg noj. Qhov kev txiav txim siab ntawd yog los ntawm ib daim ntawv pov thawj cais - NSF/ANSI/CAN 61 (Cov Dej Haus Dej Cheebtsam - Cov teebmeem Kev Noj Qab Haus Huv) hauv North America, lossis ib cheeb tsam sib npaug hauv cheeb tsam potable-water contact standard lwm qhov.
Hauv kev xyaum, qhov no plays tawm raws li hauv qab no:
- Pleev steel yeeb nkabtsis yog nws tus kheej NSF/ANSI 61 teev raws li cov khoom tiav qeb txoj kev yas yeeb nkab lossis fittings yog - cov ntawv pov thawj cuam tshuam siv rau cov khoom ntub dej - cov khoom siv saum npoo av, uas nyob rau hauv cov yeeb nkab kab yog cov hauv ob sab phlu, tsis yog lub hauv paus hlau.
- Cement mortar hauv ob sab phlu thiab NSF / ANSI 61- npe epoxy hauv ob sab phluyog ob lub hnab ntim khoom uas peb muab cov ntaub ntawv pov thawj pov tseg - dej kev pom zoo; daim ntawv pov thawj mus nrog cov khoom siv hauv ob sab phlu thiab batch, thiab peb muab cov ntaub ntawv ntawd cais los ntawm cov yeeb nkab tus kheej daim ntawv qhia txog kev xeem.
- Ib qho galvanized sab hauvqee zaum xav tias "huv txaus" rau cov dej haus los ntawm lub neej ntawd - nws tsis yog NSF / ANSI 61 tau teev tseg, thiab qee qhov dej tso cai txwv lossis txwv tsis pub cov galvanized tha xim sab hauv ntawm cov kab uas siv tau tshwj xeeb vim yog zinc leaching thiab lead- solder-era kav dej kev txhawj xeeb. Tshawb xyuas koj cov cai tswj dej hauv zos ua ntej qhia galvanized sab hauv rau ib txoj kab uas siv tau.
Yog tias koj qhov kev qhia tshwj xeeb yuav tsum tau ua raws NSF / ANSI 61 thiab tsis cais tawm cov ntawv pov thawj hauv ob sab phlu, uas tsim nyog chij rau koj tus engineer ua ntej qhov kev txiav txim muab tso rau - nws yooj yim heev rau "steel yeeb nkab, ASTM A53" yuav tsum tau nyeem raws li npog tag nrho cov kev xav tau thaum nws tsuas yog npog lub hauv paus yeeb nkab.
Qhov twg dej muab cov kav dej yeej mus
Muab khoom-sab A53 yeeb nkab zoo li khiav me me thiab xaus ze rau cov neeg siv kawg dua li cov yeeb nkab xa mus:
| Daim ntawv thov | Hom loj ntau yam | Cov ntaub ntawv / txheej txheej |
|---|---|---|
| Kev pabcuam dej hauv tsev | DN20-DN100 | Galvanized (qhov chaw tso cai hauv zos) lossis epoxy-lined |
| Siab -nce hauv tsev dej riser | DN50-DN200 | Epoxy-lined, NSF/ANSI 61 qhov twg tuaj yeem siv tau |
| Campus/community distribution loop | DN100-DN300 | Cement mortar lossis epoxy hauv ob sab phlu, sab nrauv FBE yog faus |
| Hluav taws kub standpipe mov (tsis yog-potable) | DN50-DN200 | Dub los yog pleev xim rau, tsis xav tau hauv ob sab phlu |
| Irrigation mov ceg | DN50-DN250 | Liab qab los yog FBE, tsis muaj lub hnab ntim khoom xav tau |
Kev loj hlob zoo rau sab saum toj zoo ua ntej lub ntsiab lus uas ERW cov txheej txheem ntau dhau los ua qhov txwv, uas yog kev sib tham sib txawv dua li ERW-vs-LSAW txoj kab uas hla kev lag luam tawm los ntawm kev xa tawm - kev txiav txim loj.
Case piv txwv
Ib lub tsev kawm ntawv cov chaw ua haujlwm tau txiav txim siab A53 Qib A yeeb nkab rau cov dej ntws tshiab hauv tsev, qhia txog kev ua tiav galvanized vim tias qhov ntawd yog qhov uas twb muaj lawm lub tsev risers siv. Lub xeev txoj cai kav dej, tshuaj xyuas thaum tso cai, txwv tsis pub galvanized tha xim sab hauv ntawm cov khoom siv hluav taws xob tshiab tshaj qhov loj me vim yog lub xeev - qib txhuas- thiab - txoj cai tooj liab hloov kho cov chaw pab pawg tsis tau taug qab. Qhov kev txiav txim tau hloov kho rau Qib B yeeb nkab nrog NSF / ANSI 61- npe epoxy hauv ob sab phlu ua ntej kev tsim khoom pib - ib qho kev sib pauv ncaj qha ib zaug tau chij, tab sis ib qho uas yuav ua tsis tau tiav kev tshuaj xyuas yog tias ntes tau tom qab kev teeb tsa es tsis txhob ntawm theem kev txiav txim. Tam sim no peb nug ncaj qha seb daim ntawv xaj khoom puas tuaj yeem siv tau thiab, yog tias muaj, qhov kev txiav txim siab txoj cai kav dej siv tau, ua ntej lees paub tiav.
Cov lus nug nquag nug (FAQ)
Q: Puas yog ASTM A53 yeeb nkab nws tus kheej tau lees paub muaj kev nyab xeeb rau cov dej haus?
A: Tsis yog. A53 yog ib qho kev qhia tshwj xeeb thiab qhov loj me uas tsis muaj kev pabcuam rau cov khoom siv hluav taws xob - dej tiv thaiv kev nyab xeeb. Daim ntawv pov thawj ntawd (NSF/ANSI/CAN 61 lossis ib qho kev sib npaug hauv cheeb tsam tus qauv) siv rau hauv ob sab phlu lossis txheej hauv kev sib cuag nrog dej, tsis yog rau lub hauv paus A53 yeeb nkab specification nws tus kheej.
Q: Kuv puas xav tau Qib B, lossis Qib A puas txaus rau cov kav dej?
A: Rau feem ntau cov khoom siv - sab kev ua haujlwm siab, qib ob yog cov khoom tsim nyog, thiab cov kev tiv thaiv corrosion - cov kev txwv chemistry (phosphorus thiab sulfur) zoo ib yam ntawm ob qib. Qib B feem ntau khaws cia thiab feem ntau teev raws li lub neej ntawd; Qib A tuaj yeem yog tus nqi tsim nyog-txuag kev xaiv yog tias koj tus kws ua haujlwm paub meej tias nws ua tau raws li qhov project spec.
Q: Dab tsi yog qhov txawv ntawm "dej" thiab "dej xa mus" yeeb nkab hauv kev xyaum?
A: Tsis muaj tus qauv ASTM cais rau txhua tus - ob qho tib si feem ntau A53 lossis, ntawm qhov loj dua, AWWA- cov yeeb nkab txheem. Qhov sib txawv yog qhov ua haujlwm zoo: cov yeeb nkab xa mus rau cov dej hauv qhov ntau ntawm qhov chaw, cov chaw kho mob, thiab cov chaw xa khoom, feem ntau ntawm txoj kab uas hla loj dua nrog kev nce siab - kev tsim siab raws li kev txhawj xeeb hauv nruab nrab. Cov yeeb nkab xa dej yog qhov kawg ntawm qhov kev siv - cov tsev, tsev kawm ntawv, kev sib txuas ntawm tus kheej - feem ntau ntawm cov kab me me nrog kev sib cuag - ntawv pov thawj kev nyab xeeb raws li qhov kev txhawj xeeb hauv nruab nrab.
Q: galvanized A53 yeeb nkab puas tuaj yeem siv rau cov kav dej?
A: Tsuas yog qhov twg cov kav dej hauv zos tso cai rau nws, thiab nce ntxiv nws txwv tsis pub siv cov khoom siv tshiab vim tias cov khoom siv sab hauv galvanized tsis tau txais NSF / ANSI 61 tau teev tseg thiab tuaj yeem ua rau muaj kev txhawj xeeb txog zinc thiab cov khoom qub qub - cov pob qij txha. Paub meej nrog koj tus lej hauv zos ua ntej qhia galvanized rau txhua yam nqa dej haus.
Cim npe nrov: astm a53 qib b erw steel yeeb nkab dej, Tuam Tshoj astm a53 qib b erw steel yeeb nkab dej muab manufacturers, lwm tus neeg, Hoobkas
