- ASTM A106 / A106M Txuj Specification rau Seamless Carbon Steel Pipe rau Kev Pabcuam Kub Kub
Kev tsim thiab siv cov kav dej seamless carbon steel yog tswj hwm los ntawm ASME SA106 code, uas yog qhov tseem ceeb rau cov roj, roj, thiab petrochemical sectors. Cov qauv no, uas tau tsim los ntawm American Society of Mechanical Engineers (ASME), tau lees paub qhov ua tau zoo thiab kev nyab xeeb ntawm cov kua dej hauv cov xwm txheej ntawm kev kub siab thiab kub siab. Boiler seamless carbon steel yeeb nkab uas ua raws li ASME SA-106 hu ua ASME SA-106B. Cov hlau tshwj xeeb no yog cov hlau, cov hlau feem ntau ua los ntawm cov hlau thiab cov pa roj carbon monoxide, cov nyiaj uas cuam tshuam rau cov hlau alloy lub zog thiab lwm yam khoom siv. Ib qho me me ntawm cov ntsiab lus ntxiv xws li silicon, manganese, thiab cov alloys ntawm cov kab mob tseem muaj nyob hauv SA-106.
Chemical Composition (%) ntawm ASME SA-106B
| CHEMICAL COMPOSITION (%) | ||||||||||
| Txuj | C, max | Mn | P, max | S, max | Si, min | Cr, max | Nim, max | Mo, max | Cu, max | V, max |
| ASME SA-106B | 0.30 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
ASTM A106 / A106M cov kev cai tshwj xeeb yog ua tau raws li cov khoom siv zoo ntawm SA-106B yeeb nkab. Tensile zog, yield zog, elongation, hardness, thiab tej yam kuj yog ib co ntawm cov yam ntxwv. Txhawm rau kom paub tseeb tias nws qhov zoo thiab kev ncaj ncees, SA-106B piping kuj tau muab los ntawm ntau yam kev ntsuas tsis muaj kev puas tsuaj, suav nrog kev sim hydrostatic thiab kuaj ultrasonic.
Mechanical Properties of ASME SA-106B
| MECHANICAL PROPERTIES | |||
| Tensile zog, MPa, min | Yield zog, MPa, min | Elongation (%), min | Hardness, max |
| 335 | 205 | 24 | - |
Ntau cov txheej txheem tseem ceeb, suav nrog kev tsim steel, kev tsim cov yeeb nkab, kev kho cua sov, thiab kev sim, mus rau hauv kev tsim cov ASME SA-106B yeeb nkab. Txhawm rau lav qhov tsim cov kav dej zoo thiab muaj kev ntseeg siab, nws yog qhov tseem ceeb kom nkag siab txog cov haujlwm no. Hauv qhov cub tawg, cov khoom siv raw xws li hlau ore, thee, thiab limestone yog thawj melted ua ntej cov txheej txheem steelmaking yuav pib. Tom ntej no, impurities raug tshem tawm los ntawm cov hlau molten, thiab cov pa roj carbon concentration raug kho raws li cov qauv. Nws kuj tseem tuaj yeem ntxiv cov khoom siv alloying los txhim kho qee yam zoo. Ib qho khoom siv hlau yog perforated los tsim ib lub raj hollow, uas yog li cas ASME SA -106B yeeb nkab yog tsim los siv txoj kev seamless. Ib theem tseem ceeb hauv kev tsim cov SA-106B kav dej yog kev kho cua sov. Nws koom nrog ua tib zoo tswj cov yeeb nkab cua sov thiab cua txias kom txhim kho nws cov yam ntxwv ntawm kev siv tshuab, xws li lub zog thiab toughness. Cov txheej txheem ntawm normalizing, quenching, thiab tempering yog nquag siv hauv kev kho cua sov. Cov txheej txheem rau kev tswj xyuas kom zoo thiab kev ntsuam xyuas yog qhov tseem ceeb rau kev lees paub tias ASME SA-106B yeeb nkab ua raws li cov lus qhia tshwj xeeb. Siv cov kev sim ua kom tsis txhob muaj kev soj ntsuam kom pom cov raj xa hluav taws xob, xws li kev sim ultrasonic, ntsuas ntsuas, thiab kev sim sib nqus. Kev sim hydrostatic kuj tau ua kom ntseeg tau tias cov kav dej muaj zog thiab tsis muaj paug.
ASME SA-106B carbon steel feem ntau yog siv los tsim cov high-pressure thiab siab dua-parameter boiler yeeb nkab fittings, low-temperature section superheaters, reheaters, economizers, thiab water-cooled walls; dej-txias phab ntsa raj, economizer raj, thiab lwm yam .; loj-diameter raj rau chav kav nrog ib tug phab ntsa kub ntawm 450 degree; headers (economizers, phab ntsa dej txias, low-temperheater, thiab reheater headers); nruab nrab kub 450 degree pipeline accessories, thiab lwm yam.
Qhov tseeb, peb tseem xav txog qhov zoo li thiab qhov zoo ntawm cov khoom tiag tiag thaum xaiv SA106B high-pressure boiler hlab thiaj li yuav xaiv cov raj hlau uas ua raws. Nws tsis raug qhia kom xaiv yog tias qhov zoo tsis ncav cuag tus qauv tsim nyog vim tias yuav tsum muaj teeb meem nrog cov yeeb nkab steel zoo. Yog li ntawd, peb tuaj yeem xaiv qhov zoo SA-106B boiler raj li cas?
Lub SA106B high-pressure boiler yeeb nkab yuav tsum tseem yuav tsum tau xaiv nyob rau hauv thiaj li yuav xyuas kom meej tias qhov zoo ntawm cov yeeb nkab steel ua tau raws li qhov yuav tsum tau thiab hais tias cov corrosion kuj thiab cuam tshuam tsis kam yog guaranteed, txawm lub fact tias nyob rau hauv lub steel yeeb nkab yog hollow. Kev ntsuam xyuas tuaj yeem ua tiav siv micrometers lossis ultrasonic thickness gauges. Peb yuav tsum xyuas kom meej tias cov thickness ua tau raws li peb cov kev xav tau. Koj tuaj yeem siv calipers thiab vernier calipers los ntsuas cov yeeb nkab steel sab nraud. Txawm hais tias qhov ntau thiab tsawg thiab qhov tshwj xeeb ntawm txhua cov yeeb nkab steel sib txawv, qhov kev ruaj ntseg ntawm qhov yuav tsum tau lav kom ntseeg tau tias kev teeb tsa thiab kev siv yav tom ntej tsis cuam tshuam. Txawm hais tias qhov ntev thiab qhov tshwj xeeb ntawm txhua cov yeeb nkab steel sib txawv, qhov kev ruaj ntseg yuav tsum tau lav kom ntseeg tau tias kev teeb tsa thiab kev siv yav tom ntej tsis cuam tshuam. Nws tseem yuav tsum tau soj ntsuam cov degree ntawm dabtsi yog khoov vim hais tias qhov verticality ntawm SA106B high-pressure boiler raj yuav tsum tau xyuas. Txhawm rau kuaj xyuas, koj tuaj yeem siv lub ntsuas ntsuas ntsuas, saib seb leej twg tuaj yeem noj tau, thiab lwm yam. Nws yuav tsum tsis txhob ua raws li yog tias qhov khoov mus rau saum toj qhov kev tso cai.
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