Manufactur misali China API 5L 5CT Psl1/ Psl2 X42/X52/X46/X56/X60/X65/X70/X80 Bututun Karfe
Dubawa
Don zama sakamakon ƙwararrun namu da sanin yakamata, kamfaninmu ya sami kyakkyawan suna tsakanin abokan ciniki a duk faɗin duniya don API 5L 5CT Psl1 / Psl2 X42/X52/X46/X56/X60/X65/X70/X80 Layin Layi mara kyau Bututu, Ƙarfafawa tare da saurin samar da kasuwa na yanzu akan kayan abinci masu sauri da abubuwan sha a duk faɗin duniya, Muna neman aiki tare da abokan / abokan ciniki don ƙirƙirar kyakkyawan sakamako tare. Kullum muna ƙirƙirar sababbin fasaha don daidaita samarwa, da samar da samfurori tare da farashi masu gasa da inganci! Gamsar da abokin ciniki shine fifikonmu! Kuna iya ba mu damar sanin ra'ayin ku don haɓaka ƙira na musamman don ƙirar ku don hana yawancin sassa masu kama da juna a kasuwa! Za mu ba ku mafi kyawun sabis ɗinmu don biyan duk bukatun ku! Da fatan za a tuntube mu nan da nan!
Bututun bututu: man, iskar gas ko ruwan da ake hakowa daga kasa ana jigilar su zuwa masana'antar mai da iskar gas ta bututun bututun. Ƙarshen soket; Yanayin haɗin kai shine ƙarshen waldi, haɗin kwala, haɗin soket da sauransu.
Bututun bututu: man, iskar gas ko ruwa da aka hako daga ƙasa ana jigilar su zuwa masana'antar mai da iskar gas ta bututun bututun mai. An haɗa bututun welded ta hanyar bututun walda, gabaɗaya tsayin ya fi tsayi, zai iya gamsar da yawan mai amfani, amma kwanciyar hankali. ba a matsayin mai kyau kamar daya hadedde taro na sumul bututu, amma su ne kullum ya fi guntu tsawon da sumul tube, ba zai iya gamsar da mabukaci da yin amfani da dogon nisa, mabukaci ne a cikin amfani tsari bukatar gudanar da collocation amfani both. The bututun bututu kunshi duka biyu. Abubuwa biyu na banza da kuma welded bututu mai ƙarewa, ƙarshen bututu yana da ƙarewa, ƙarshen hanyar haɗin gwiwa; yanayin haɗi, haɗin haɗi, haɗin haɗin sodet da sauransu.
Tare da ci gaban da bututun karfe farantin fasaha da kuma ci gaban welded bututu kafa, waldi fasaha, aikace-aikace kewayon bututu tare da welded bututu a hankali fadada, musamman a cikin manyan diamita welded bututu aji ikon yinsa da amfani da karin rigar, da kuma kudin. dalilai, bututun welded ya kasance mafi rinjaye a fagen bututun layi, wanda ke iyakance haɓaka bututun layin bakin ƙarfe mara ƙarfi.
API5L bututu samar a halin yanzu ta amfani da microalloying dumama magani tsari, bakin karfe sumul bututu samar kudin ne muhimmanci mafi girma fiye da welded bututu, kuma tare da inganta karfe sa, kamar X80 karfe sa bututu a kan iyaka na carbon daidai, da al'ada tsari. na bututun ƙarfe mara nauyi yana da wahala don biyan buƙatun mai amfani
Transmission karfe bututu ne zuwa kashi PSL1, PSL2 biyu samfurin maki, babban bambanci shi ne cewa PSL2 idan aka kwatanta da PSL1 a kan carbon daidai, karaya tauri, matsakaicin yawan amfanin ƙasa ƙarfi da matsakaicin tensile ƙarfi bukatun.The iko da cutarwa abubuwa kamar phosphorus da sulfur ne ma. Gwajin mara lahani na bututun da ba su da lahani ya zama tilas. Abubuwan da ke cikin garanti da kuma gano bayan gwajin wajibi ne.
Babban bukatun aikin bututun mai da iskar gas don ƙarfe sun haɗa da:
1. Ƙarfi: An tsara bututun mai da iskar gas bisa ga ƙarfin ƙarfin ƙarfe.
2. Tauri: Higher tauri na karfe bututu iya kawo wani m kudi na man fetur da kuma iskar gas fashe hadarin, don haka API 5L kayyade cewa, ban da na al'ada inji Properties, v-notch Charpy tasiri gwajin da drop guduma hawaye gwajin ya kamata a supplemented, kuma bututun ƙarfe ya kamata a yi gwajin da ba zai lalata ba kafin barin masana'anta.
3. Weldability: Saboda yanayin yanayi mai tsanani don shimfida bututun mai, ana buƙatar mai kyau weldability a lokacin butt waldi na karfe bututu. da kuma yankin da ke fama da zafi, da kuma kara yawan yiwuwar fashewar bututun mai.Ka'idar ƙirar ƙirar ƙarfe na weldability shine kula da ma'anar canji na martensite da hardening. Bisa ga tasirin abubuwan da ke tattare da abubuwan da ke tattare da abubuwan da ke faruwa a kan martensite sauyin yanayi da kuma kwarewa mai amfani, ƙididdigar ƙididdiga. Ana iya amfani da daidaitattun carbon don kimanta weldability na karfe. Gabaɗaya, daidaitaccen carbon ya kamata a sarrafa shi ƙasa da 0.4%. A gaskiya ma, yawancin masana'antun ƙarfe ana sarrafa su a ƙasa da 0.35%.
4. Ductility: Idan ductility bai isa ba, zai haifar da samuwar farantin karfe na tsagawa a lokacin sanyin lankwasa ko fashewar cambium a lokacin walda.Saboda haka, API misali don welded bututu daga cikin ƙayyadaddun gwajin gwaji, amma kuma yana buƙatar abokin ciniki-shiryarwa. gwajin lankwasawa sanyi.Makullin don inganta ductility shine don rage abubuwan da ba na ƙarfe ba a cikin ƙarfe da sarrafa ilimin halittar jiki da rarraba abubuwan da aka haɗa.
5. Juriya na lalata: lokacin isar da man sulfur da iskar gas, hydrogen sulfide da carbon dioxide a cikin ruwa zai haifar da haɓakar hydrogen da damuwa lalata bututun ƙarfe. Matakai irin su sarrafa abun ciki na sulfur, sarrafa nau'in sulfide da haɓaka tauri tare da kauri daga bango. Gabaɗaya adopted.Its main halaye ne microalloying da sarrafawa mirgina, wanda zai iya samun babban ƙarfi, high tauri, high plasticity da kuma mai kyau weldability karkashin zafi mirgina yanayin.In domin cikakken cika da yi da bukatun na man fetur da gas bututun na karfe, m gami zane. , sulfur, phosphorous da sauran abubuwa masu cutarwa suma suna da ƙarfi sosai. Gabaɗaya, sulfur bai wuce 0.01% don haɓaka filastik da taurin ƙarfe ba, musamman taurin kai.
Aikace-aikace
Ana amfani da bututun ne wajen jigilar mai, tururi da ruwan da ake dibarwa daga kasa zuwa kamfanonin mai da iskar gas ta bututun.
Babban Daraja
Daraja don bututun layin API 5L: Gr.B X42 X52 X60 X65 X70
Abubuwan Sinadari
| Matsayin Karfe (Sunan Karfe) | Ragowar Jama'a, Dangane da Zafafawa da Nazarin Samfura,g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| max b | max b | min | max | max | max | max | max | |
| Bututu mara kyau | ||||||||
| L175 ya da A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| L175P ya da A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 ya da A | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 ya da B | 0.28 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| L290 ya da X42 | 0.28 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| L320 ya da X46 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L360 ya da X52 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L390 ya da X56 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L415 ya da X60 | 0.28e ku | 1.40e ku | - | 0.030 | 0.030 | f | f | f |
| L450 ya da X65 | 0.28e ku | 1.40e ku | - | 0.030 | 0.030 | f | f | f |
| L485 ya da X70 | 0.28e ku | 1.40e ku | - | 0.030 | 0.030 | f | f | f |
| Welded Pipe | ||||||||
| L175 ya da A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| L175P ya da A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 ya da A | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 ya da B | 0.26 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| L290 ya da X42 | 0.26 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| L320 ya da X46 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L360 ya da X52 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L390 ya da X56 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L415 ya da X60 | 0.26e ku | 1.40e ku | - | 0.030 | 0.030 | f | f | f |
| L450 ya da X65 | 0.26e ku | 1.45e ku | - | 0.030 | 0.030 | f | f | f |
| L485 ya da X70 | 0.26e ku | 1.65e ku | - | 0.030 | 0.030 | f | f | f |
| ku ≤ 0.50 %; Ni ≤ 0.50 %; Cr ≤ 0.50 % da Mo ≤ 0.15 %. b Ga kowane raguwa na 0.01 % ƙasa da ƙayyadadden ƙididdiga don carbon, haɓakar 0.05% sama da ƙayyadadden ƙididdiga na Mn ya halatta, har zuwa iyakar 1.65 % don maki ≥ L245 ko B, amma ≤ L360 ko X52; har zuwa matsakaicin 1.75% na maki> L360 ko X52, amma <L485 ko X70; kuma har zuwa matsakaicin 2.00% don Grade L485 ko X70. c Sai dai in an yarda, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Sai dai in akasin haka. Sai dai in an yarda da haka, Nb + V + Ti ≤ 0.15 %. g Ba a yarda da ƙarin B da gangan ba kuma ragowar B ≤ 0.001 %. | ||||||||
Kayan Injiniya
|
Bututu Grade | Jikin Bututu na Bututu mara sumul da Welded | Weld Seam na EW, LW, SAW, da SUNABututu | ||
| Ƙarfin Haɓakaa Rt0.5 | Ƙarfin Ƙarfia Rm | Tsawaitawa(a kan 50 mm ko 2 in.)Af | Ƙarfin Ƙarfib Rm | |
| MPa (psi) | MPa (psi) | % | MPa (psi) | |
| min | min | min | min | |
| L175 ya da A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L175P ya da A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 ya da A | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 ya da B | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| L290 ya da X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| L320 ya da X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| L360 ya da X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| L390 ya da X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| L415 ya da X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| L450 ya da X65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| L485 ya da X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
| a Don matsakaicin maki, bambanci tsakanin ƙayyadadden ƙayyadaddun ƙarancin ƙarfi da ƙayyadaddun ƙayyadaddun ƙarfin amfanin ƙasa don jikin bututu zai kasance kamar yadda aka bayar a cikin tebur don matsayi mafi girma na gaba.b Don matsakaicin maki, ƙayyadaddun ƙarancin ƙarancin ƙarfi don kabu na weld. za su kasance daidai da ƙimar da aka ƙaddara don jikin bututu ta amfani da bayanin ƙasa a) .c Ƙimar ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun lokaci,Af, wanda aka bayyana a cikin kashi kuma aka zagaye zuwa kashi mafi kusa, za a ƙayyade ta amfani da ma'auni mai zuwa:
ina C shine 1940 don lissafin amfani da raka'a SI da 625,000 don ƙididdigewa ta amfani da raka'a USC; Axc shine yanki na juzu'in gwaji na tensile, wanda aka bayyana a cikin murabba'in millimeters (inci murabba'in), kamar haka: 1) don madauwari na gwajin yanki, 130 mm2 (0.20 in.2) don 12.7 mm (0.500 in.) da 8.9 mm (0.350 in.) ƙananan gwajin diamita; 65 mm2 (0.10 in.2) don 6.4 mm (0.250 in.) ƙananan gwajin diamita; 2) don cikakkun yanki na gwaji, ƙaramin a) 485 mm2 (0.75 in.2) da b) yanki na yanki na yanki na gwajin, wanda aka samo ta amfani da ƙayyadaddun diamita na waje da ƙayyadadden kauri na bangon bututu, zagaye zuwa mafi kusa 10 mm2 (0.01 in.2); 3) don guntun gwajin tsiri, ƙaramin a) 485 mm2 (0.75 in.2) da b) yanki na yanki na yanki na gwajin, wanda aka samo ta amfani da ƙayyadadden nisa na yanki na gwajin da ƙayyadadden kauri na bangon bututun. , zagaye zuwa mafi kusa 10 mm2 (0.01 in.2); U shine ƙayyadadden ƙayyadaddun ƙarfin ƙarfi, wanda aka bayyana a cikin megapascals (fam a kowace inci murabba'i). | ||||
Diamita na waje, daga zagaye da kaurin bango
| Ƙayyadaddun Waje Diamita D (a) | Haƙurin diamita, inci d | Haƙuri na Ƙarfafawa a cikin | ||||
| Bututu banda karshen a | Ƙarshen bututu a,b,c | Bututu banda Karshen a | Ƙarshen bututu a,b,c | |||
| Farashin SMLS | Welded Pipe | Farashin SMLS | Welded Pipe | |||
| < 2.375 | -0.031 zuwa + 0.016 | - 0.031 zuwa + 0.016 | 0.048 | 0.036 | ||
| ≥2.375 zuwa 6.625 | 0.020D don | 0.015D don | ||||
| +/- 0.0075D | - 0.016 zuwa + 0.063 | D/t≤75 | D/t≤75 | |||
| Ta yarjejeniya don | Ta yarjejeniya don | |||||
| 6.625 zuwa 24.000 | +/- 0.0075D | +/- 0.0075D, amma mafi girman 0.125 | +/- 0.005D, amma mafi girman 0.063 | 0.020D | 0.015D | |
| > 24 zuwa 56 | +/- 0.01D | +/- 0.005D amma mafi girman 0.160 | +/- 0.079 | +/- 0.063 | 0.015D don amma max na 0.060 | 0.01D don amma max na 0.500 |
| Domin | Domin | |||||
| D/t≤75 | D/t≤75 | |||||
| Bisa yarjejeniya | Bisa yarjejeniya | |||||
| domin | domin | |||||
| D/t≤75 | D/t≤75 | |||||
| >56 | Kamar yadda aka amince | |||||
| a. Ƙarshen bututun ya haɗa da tsawon 4 a cinye kowane ɗayan bututun | ||||||
| b. Don bututun SMLS ana buƙatar haƙuri don t≤0.984in kuma haƙurin bututu mai kauri zai kasance kamar yadda aka yarda. | ||||||
| c. Don bututu mai faɗaɗa tare da D≥8.625in kuma don bututun da ba a faɗaɗa ba, ana iya ƙididdige haƙurin diamita da juriya na waje ta amfani da ƙididdige diamita na ciki ko auna cikin diamita maimakon ƙayyadaddun OD. | ||||||
| d. Don tantance yarda da jurewar diamita, an ayyana diamita na bututu azaman kewayen bututun a kowane yanki na kewayen da Pi ya raba. | ||||||
| Kaurin bango | Hakuri a |
| t inci | inci |
| SMLS bututu b | |
| 0.157 | -1.2 |
| 0.157 zuwa <0.948 | + 0.150t / - 0.125t |
| 0.984 | + 0.146 ko + 0.1t, duk wanda ya fi girma |
| - 0.120 ko - 0.1t, duk wanda ya fi girma | |
| Bututu mai walda c,d | |
| 0.197 | +/- 0.020 |
| 0.197 zuwa <0.591 | +/- 0.1t |
| 0.591 | +/- 0.060 |
| a. Idan odar siyan ya ƙididdige ƙarancin haƙuri don kaurin bango ƙasa da ƙimar da ake buƙata da aka bayar a cikin wannan tebur, ƙarin juriya na kauri na bango za a ƙaru da adadin da ya isa don kula da iyakar haƙurin da ya dace. | |
| b. Don bututu tare da D≥ 14.000 a cikin da t≥0.984in, haƙurin kauri na bango a gida na iya wuce ƙarin juriya don kauri na bango ta ƙarin 0.05t muddin ba a ƙetare ƙarin haƙuri ga taro ba. | |
| c. Haƙuri da ƙari ga kaurin bango baya shafi yankin walda | |
| d. Duba cikakken API5L ƙayyadaddun don cikakkun bayanai | |
Hakuri
Bukatar Gwaji
Gwajin Hydrostatic
Bututu don jure wa gwajin hydrostatic ba tare da yayyo ba ta cikin kabu ko jikin bututu. Ba dole ba ne a gwada masu haɗin haɗin gwiwa tare da samar da sassan bututun da aka yi amfani da su cikin nasara.
Lanƙwasa gwajin
Ba za a sami tsaga a kowane yanki na gwajin ba kuma ba za a buɗe walda ba.
Gwajin lallashi
Ma'auni na yarda don gwajin lallashi ya zama:
- EW bututu D<12.750 in:
- X60 tare da T500in. Ba za a sami buɗaɗɗen walda ba kafin nisa tsakanin faranti bai wuce 66% na ainihin diamita na waje ba. Ga duk maki da bango, 50%.
- Don bututu tare da D/t> 10, ba za a sami buɗaɗɗen walda ba kafin nisa tsakanin faranti ya kasance ƙasa da 30% na ainihin diamita na waje.
- Don wasu masu girma dabam koma zuwa cikakken ƙayyadaddun API 5L.
Gwajin tasiri na CVN don PSL2
Yawancin bututun PSL2 da maki suna buƙatar CVN. Za a gwada bututu marar sumul a cikin jiki. Za a gwada bututu mai walda a jiki, waldar bututu da yankin da zafi ya shafa. Koma zuwa cikakken ƙayyadaddun API 5L don ginshiƙi masu girma da maki da ƙimar kuzarin da ake buƙata.
