ASTM A214 simbi tubing ndeyemagetsi-resistance-welded kabhoni simbi tubing kuti ishandiswe mukutsinhanisa kupisa, macondensers, uye zvakafanana kupisa kupisa michina.Inowanzoiswa kune simbi tubing ine dhayamita yekunze isingapfuuri 3in [76.2mm].
Kazhinji anoshanda simbi pombi saizi variisingasviki 3in [76.2mm].
Mamwe saizi eERW simbi pombi anogona kupihwa, chero pombi yakadaro inosangana nezvimwe zvese zvinodiwa zveiyi tsanangudzo.
Zvishandiso zvakapihwa pasi peichi chirevo zvichaenderana nezvinodiwa zveizvino edition yeSpecification A450/A450M.kunze kwekunge zvapihwa neimwe nzira pano.
Machubhu achagadzirwa neelectric-resistance welding (ERW).
Nemutengo wayo wakaderera wekugadzira, kurongeka kwepamusoro, simba rakanakisa uye kusimba, uye kuchinjika kwedhizaini, ERW simbi pombi yave chinhu chinofarirwa kune dzakasiyana siyana dzemaindasitiri pombi masisitimu, structural engineering, uye akasiyana mapurojekiti ezvivakwa.
Mushure mewelding, machubhu ese anofanira kupiswa patembiricha inosvika 1650°F [900°] kana pamusoro uye zvichiteverwa nekutonhodza mumhepo kana mukamuri yekutonhorera yevira rinodzorwa.
Machubhu anodhonzwa nechando anofanira kucheneswa kupisa mushure mekupfuura nechando chekupedzisira patembiricha ye1200°F [650°C] kana kupfuura.
| C(Kabhoni) | Mn(Manganese) | P(Phosphorus) | S(Sulfur) |
| hukuru 0.18% | 0.27-0.63 | hukuru 0.035% | hukuru 0.035% |
Hazvibvumirwi kupa mamakisi esimbi alloy ayo anonyatso kudana kuwedzera kwechimwe chinhu kunze kweakanyorwa.
Zvinodiwa zvemuchina hazvishande kumachubhu ane dhayamita yemukati isingasviki 0.126 mu [3.2 mm] kana ukobvu isingasviki 0.015 mu [0.4 mm].
Tensile Property
Iko hakuna chaiko kunodiwa kune tensile zvivakwa muASTM A214.
Izvi zvinodaro nekuti ASTM A214 inonyanya kushandiswa kupisa kupisa uye condensers.Dhizaini uye kushanda kwezvishandiso izvi hazviwanzo kuisa kumanikidza kwakanyanya pachubhu.Kusiyana neizvi, kutariswa kwakanyanya kunoitwa pakukwanisa kwechubhu kutsungirira kumanikidza, maitiro ayo ekupisa kupisa, uye kusaita ngura.
Flattening Test
Kune welded pombi, inodiwa bvunzo chikamu kureba haisi pasi pe 4 mu (100 mm).
Kuedza kwakaitwa mumatanho maviri:
Nhanho yekutanga ndeye ductility bvunzo, mukati kana kunze kwepamusoro pepombi yesimbi, hapazovi nekutsemuka kana kuputsika kusvikira kureba pakati pemahwendefa kwakaderera kudarika kukosha kweH kuverengwa maererano neshoko rinotevera.
H=(1+e)t/(e+t/D)
H= chinhambwe pakati pemapureti ekufuratira, mukati [mm],
t= yakatsanangurwa madziro makubvu echubhu, mukati.[mm],
D= yakataurwa kunze kwedhayamita yechubhu, in. [mm],
e= 0.09(deformation per unit urefu)(0.09 ye low-carbon steel (yakanyanya kutaurwa kabhoni 0.18 % kana pasi)).
Danho rechipiri nderokuedzwa kweperero, iyo icharamba ichigadziriswa kusvikira muenzaniso waputsika kana madziro epombi asangana.Munguva yese yekuyedzwa kwekubata kumeso, kana laminated kana unsound zvinhu zvikawanikwa, kana weld isina kukwana, inorambwa.
Flange Test
Chikamu chepombi chinofanirwa kukwanisa kuchinjika panzvimbo pamakona ekurudyi kumuviri wepombi pasina kutsemuka kana kusakwana kunogona kurambwa pasi pezviga zvechigadzirwa.
Hupamhi hweflange yekabhoni uye alloy simbi haizove shoma pane iyo muzana.
| Kunze Diameter | Kufara kweFlange |
| Kusvika 2½ mukati[63.5mm], kusanganisira | 15% yeOD |
| Kupfuura 2½ kusvika 3¾ [63.5 kusvika 95.2], kusanganisira | 12.5% yeOD |
| Kupfuura 3¾ kusvika 8 [95.2 kusvika 203.2], kusanganisira | 15% yeOD |
Reverse Flattening Test
A in. 5 in. [100 mm] pakureba kwetubhi rakapedzwa rakaiswa weld muhukuru kudzika uye kusanganisira ½ mukati. [12.7 mm] kunze kwedhayamita ichapatsanurwa kureba 90° kudivi rega rega reweld uye sample yovhurwa nekupepetwa ne weld panzvimbo yepamusoro bend.
Pachave pasina humbowo hwekutsemuka kushaikwa kwekupinda kana kupindirana kunobva mukubviswa kwemwenje mu weld.
Kuoma Muedzo
Kuoma kwechubhu hakufaniri kudarika72 HRBW.
Pamachubhu 0.200 mu[5.1 mm] uye pamusoro mukukora kwemadziro, ingave Brinell kana Rockwell kuomarara bvunzo ichashandiswa.
Hydrostatic kana kusaparadza magetsi kuyedzwa kunoitwa pane imwe neimwe pombi yesimbi.
Hydrostatic Test
TheKunyanya kudzvinyirira kukoshainofanira kuchengetedzwa kweinenge 5s pasina kuvuza.
Iyo yakaderera hydrostatic test pressure ine chekuita neiyo kunze dhayamita uye kukora kwemadziro kwepombi.Inogona kuverengwa neformula.
Inch-Pound Units: P = 32000 t/DorSI Units: P = 220.6 t/D
P= hydrostatic test pressure, psi kana MPa,
t= kutsanangurwa kwemadziro ukobvu, mukati kana mm,
D= yakataurwa kunze kwedhayamita, mukati kana mm.
Maximum experimental pressure, kutevedzera zvinodiwa pasi apa.
| Kunze Diameter yeTube | Hydrostatic Test Pressure, psi [MPa] | |
| OD ＜1 mukati | OD ＜25.4 mm | 1000 [7] |
| 1≤ OD ＜1½ mukati | 25.4≤ OD ＜38.1 mm | 1500 [10] |
| 1½≤ OD ＜2 mukati | 38.≤ OD ＜50.8 mm | 2000 [14] |
| 2≤ OD ＜3 mukati | 50.8≤ OD ＜76.2 mm | 2500 [17] |
| 3≤ OD ＜5 mukati | 76.2≤ OD ＜127 mm | 3500 [24] |
| OD ≥5 mukati | OD ≥127 mm | 4500 [31] |
Nondestructive Electric Test
Imwe neimwe chubhu ichaongororwa nenzira dzisiri dzekuparadza dzekuyedza zvinoenderana neSpecification E213, Specification E309 (ferromagnetic zvinhu), Specification E426 (isina-magnetic zvinhu), kana Specification E570.
Iyi inotevera data inotorwa kubva kuASTM A450 uye inosangana nezvinodiwa zve welded simbi pombi chete.
Uremu Kutsauka
0 - + 10%, hapana kutsauka.
Uremu hwepombi yesimbi hunogona kuverengwa nemaitiro.
W = C(Dt)t
W= uremu, Ib/ft [kg/m],
C= 10.69 yeInch Units [0.0246615 yeSI Units],
D= yakataurwa kunze kwedhayamita, mukati. [mm],
t= yakataurwa shoma mudhuri ukobvu, mukati. [mm].
Kutsauka Kwemadziro
0 - +18%.
Kusiyana kwehukobvu hwemadziro chero chikamu chimwe chete chepiipi yesimbi 0.220 mu [5.6 mm] uye pamusoro haifaniri kudarika ± 5% yeavhareji chaiyo yemadziro ukobvu hwechikamu ichocho.
Avhareji yemadziro ukobvu ndiyo avhareji yehukobvu uye thinnest madziro makobvu muchikamu.
Kunze Diameter Kutsauka
| Kunze Diameter | Kusiyana Kunobvumirwa | ||
| in | mm | in | mm |
| OD ≤1 | OD ≤ 25.4 | ±0.004 | ±0.1 |
| 1＜ OD ≤1½ | 25.4＜ OD ≤38.4 | ±0.006 | ±0.15 |
| 1½＜ OD ＜2 | 38.1＜ OD ＜50.8 | ±0.008 | ±0.2 |
| 2≤ OD ＜2½ | 50.8≤ OD ＜63.5 | ±0.010 | ±0.25 |
| 2½≤ OD ＜3 | 63.5≤ OD ＜76.2 | ±0.012 | ±0.30 |
| 3≤ OD ≤4 | 76.2≤ OD ≤101.6 | ±0.015 | ±0.38 |
| 4＜ OD ≤7½ | 101.6＜ OD ≤190.5 | -0.025 - +0.015 | -0.64 - +0.038 |
| 7½＜ OD ≤9 | 190.5＜ OD ≤228.6 | -0.045 - +0.015 | -1.14 - +0.038 |
Mafuta akapedzwa anofanira kunge asina chiyero.Huwandu hushoma hweoxidation haizotorwa sechiyero.
Imwe neimwe chubhu ichanyorwa zvakajeka nezita remugadziri kana mhando, nhamba yetsanangudzo, uye ERW.
Zita remugadziri kana chiratidzo chinogona kuiswa zvachose pachubhu yega yega nekukunguruka kana kudzvanya mwenje isati yajairika.
Kana chitambi chimwe chete chikaiswa pachubhu nemaoko, chiratidzo ichi hachifaniri kunge chiri pasi pemamita 200 kubva kune rumwe rutivi rwechubhu.
Kupokana nekupisa kwakanyanya uye kumanikidza: Kugona kutsungirira tembiricha yakakwira uye kudzvanywa chinhu chakakosha kwazvo muzvirongwa zvekutsinhana kupisa.
Good thermal conductivity: Zvishandiso uye nzira yekugadzira iyi chubhu yesimbi inogonesa yakanakisa yekupisa conductivity yezvikumbiro zvinoda kuchinjisa kupisa kwakanaka.
Weldability: Imwe bhenefiti ndeyekuti ivo vanogona kunyatsobatanidzwa newelding, kuita kugadzika nekugadzirisa kuve nyore.
Inonyanya kushandiswa mukutsinhanisa kupisa, condensers, uye zvakafanana kupisa kupisa michina.
1. Heat exchangers: Mune akasiyana maindasitiri maitiro, kupisa kunopisa kunoshandiswa kuendesa kupisa simba kubva kune imwe mvura (mvura kana gasi) kuenda kune imwe pasina kuvabvumira kuti vabatane zvakananga.ASTM A214 simbi machubhu anoshandiswa zvakanyanya mumhando iyi yemidziyo nekuti anogona kumirisana nekupisa kwakanyanya uye kumanikidza kunogona kuitika mukuita.
2. Condensers: Macondenser anonyanya kushandiswa kubvisa kupisa mukutonhodza maitiro, semuenzaniso mufiriji uye air-conditioning masisitimu, kana kushandura chiutsi kuti chidzokere kumvura muzviteshi zvemagetsi.Izvo zvinoshandiswa mumasisitimu aya nekuda kweiyo yakanaka yekupisa conductivity uye simba remagetsi.
3. Midziyo yekutsinhanisa kupisa: Iri rudzi rwesimbi chubhu inoshandiswawo mune mamwe mashandisi ekupisa kupisa akafanana neanopisa uye condensers, zvakadai se evaporator uye coolers.
ASTM A179: isimbi isina musono-inodhonzwa yakapfava simbi yekupisa exchanger uye condenser tubing.Inowanzo shandiswa mumashandisirwo ane akafanana maapplication, akadai seanopisa kupisa uye macondensers.Kunyangwe A179 isina musono, inopa zvakafanana kupisa zvivakwa.
ASTM A178: Inovhara kuramba-welded kabhoni uye kabhoni-manganese simbi boiler machubhu.Aya machubhu anoshandiswa mumaboilers uye superheaters, uye anogona zvakare kushandiswa mukutsinhana kupisa ane zvinodiwa zvakafanana, kunyanya panodiwa nhengo dzakasungwa.
ASTM A192: inovhara isina musono kabhoni simbi boiler machubhu e-high-pressure service.Nepo machubhu aya achinyanya kuitirwa kushandiswa munzvimbo dzekudzvanya uye nepamusoro-soro, zvigadzirwa zvawo uye maitiro ekugadzira anoita kuti akwanise kushandiswa mune mamwe maturusi ekutamisa kupisa anoda kudzvanywa kukuru uye kushomeka kwekushisa.
Isu tiri yepamusoro-soro welded kabhoni simbi pombi inogadzira uye mutengesi kubva kuChina, uye zvakare isina musono simbi pombi stockist, inokupa iwe yakawanda yesimbi pombi mhinduro!
Kune chero kubvunza kana kudzidza zvakawanda pamusoro pezvipo zvedu, usazeza kutibata.Yako yakanaka simbi pombi mhinduro ingori meseji kure!
