API 5L X42, wanda kuma aka sani da L290, wani nau'in bututun layi ne da ake amfani da shi a masana'antar mai da iskar gas.
Kayayyakin kayan abu suneƙarancin ƙarfin yawan amfanin ƙasa na 42,100 psi(290 MPa) da kuma amafi ƙarancin ƙarfin tensile na 60,200 psi(415 MPa). Yana da matsayi ɗaya mafi girma fiye da API 5L Grade B kuma ya dace da aikace-aikacen matsakaici mai ƙarfi.
Ana ƙera X42 a cikin Seamless, SSAW, LSAW, da ERW. Ana iya samun murfin da ƙarewa don biyan takamaiman buƙatun aikace-aikace.
Yanayin Isarwa
Dangane da yanayin isarwa da matakin PSL, ana iya rarraba shi kamar haka:
PSL1: X42 ko L290;
PSL2: X42R, X42N, X42Q, X42M ko L290R, L290N, L290Q, L290M;
Haruffan kari na PSL2 kowannensu yana wakiltar maganin zafi daban-daban.
R: An birgima;
N: Daidaita tsari;
Q: An kashe shi kuma an yi masa zafi;
M: Maganin thermo-mechanical.
Tsarin Masana'antu
X42 yana ba da damar aiwatar da masana'antu mai zuwa:
Idan kana ganin waɗannan gajerun bayanai suna da wahalar fahimta, duba tarin labaranmu a kangajerun gajerun kalmomi na yau da kullun don bututun ƙarfe.
Botop Steel zai iya samar muku da nau'ikan bututu iri-iri kamar yadda aka nuna a teburin da ke ƙasa.
Tsarin Samar da Kayayyakinmu
Daidaitacce: API 5L (ISO 3183);
PSL1: X42 ko L290;
PSL2: X42R, X42N, X42Q, X42M ko L290R, L290N, L290Q, L290M;
Bututun ƙarfe mai walda:LSAW(SAWW), (SAWW)HSAW), DSAW, ERW;
Bututun ƙarfe mara sumul:SMSS;
Jadawalin Bututu: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 da SCH160.
Ganewa: STD (Na yau da kullun), XS (Na musamman), XXS (Na biyu mafi ƙarfi);
Rufi: fenti, varnish,3LPE, FBE, 3LPP, HDPE, galvanized, mai arzikin sinadarin epoxy zinc, mai nauyin siminti, da sauransu.
Marufi: Zane mai hana ruwa shiga, akwatin katako, bel ɗin ƙarfe ko haɗin waya na ƙarfe, mai kariya daga ƙarshen bututun filastik ko ƙarfe, da sauransu. An keɓance shi.
Kayayyakin da suka dace: Lanƙwasa,flanges, kayan haɗin bututu, da sauran kayayyakin da suka dace suna samuwa.
Tsarin Sinadaran API 5L X42
Sinadaran da aka Haɗa don Bututun PSL 1 tare da t ≤ 25.0 mm (inci 0.984)
Sinadaran da aka yi amfani da su wajen hada bututun PSL 2 tare da t ≤ 25.0 mm (inci 0.984)
Don samfuran bututun ƙarfe na PSL2 da aka bincika tare dasinadarin carbon na ≤0.12%, daidai da carbon CEkwamfutaana iya ƙididdige shi ta amfani da dabarar da ke ƙasa:
CEkwamfuta= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Don samfuran bututun ƙarfe na PSL2 da aka bincika tare dasinadarin carbon > 0.12%, daidai da carbon CEllwana iya ƙididdige shi ta amfani da dabarar da ke ƙasa:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
Sinadaran da aka haɗa da t ＞ 25.0 mm (inci 0.984)
Ana iya yin shawarwari kan wannan ta hanyar komawa ga sinadaran da ke sama.
Kayayyakin Inji na API 5L X42
Halayen Tashin Hankali
Gwajin tensile gwaji ne mai mahimmanci don kaddarorin injina na bututun ƙarfe, wanda ke iya auna ƙarfin samarwa, ƙarfin tensile, da mahimman sigogi na tsawaitawa.
Ƙarfin yawan amfanin X42 shine 42,100 psi ko 290 MPa.
Ƙarfin ƙarfin X42 shine 60,200 psi ko 415 MPa.
Kayayyakin Tensile na PSL1 X42
Kayayyakin Tensile na PSL2 X42
BayaniAn yi cikakken bayani game da buƙatun a cikin sashin Kayayyakin Inji naAPI 5L X52, wanda za a iya gani ta hanyar danna kan rubutun shuɗi idan kuna da sha'awa.
Sauran Gwaje-gwajen Inji
Gwajin Lanƙwasa
Gwajin Faɗin Ƙasa
Gwajin lanƙwasawa mai jagora
Gwajin Tasirin CVN don Bututun PSL 2
Gwajin DWT don Bututun PSL 2 da aka haɗa
Ba shakka, ba dukkan bututun ake buƙatar a gwada su don samun cikakken tsarin kayan aikin injiniya ba, amma ana zaɓar gwaje-gwajen ne bisa ga nau'in bututun. Ana iya samun takamaiman buƙatu a cikin Tebur 17 da 18 na ma'aunin API 5L.
Hakanan zaka iya tuntuɓar mu don wannan bayanin.
Gwajin Hydrostatic
Lokacin Gwaji
Duk girman bututun ƙarfe marasa sumul da na walda waɗanda girmansu ya kai D ≤ 457 mm (inci 18):Lokacin gwaji ≥ 5s;
Bututun ƙarfe mai walda D > 457 mm (inci 18):Lokacin gwaji ≥ 10s.
Mita na Gwaji
Kowace bututun ƙarfekuma ba za a sami ɓuɓɓuga daga jikin walda ko bututu ba yayin gwajin.
Matsi na gwaji
Matsin gwajin hydrostatic P na abututun ƙarfe mai sauƙiana iya ƙididdige ta ta amfani da dabarar.
P = 2St/D
Sshine matsin lamba na ƙwallo. ƙimar daidai take da ƙayyadadden ƙarfin yawan amfanin da aka ƙayyade na bututun ƙarfe xa kashi, a cikin MPa (psi);
tshine kauri na bango da aka ƙayyade, wanda aka bayyana a cikin milimita (inci);
Dshine diamita na waje da aka ƙayyade, wanda aka bayyana a cikin millimeters (inci).
Binciken da ba ya lalatawa
Ga bututun SAWhanyoyi guda biyu,UT(gwajin ultrasonic) koRT(gwajin rediyo), yawanci ana amfani da su.
ET(gwajin lantarki) bai shafi bututun SAW ba.
Za a duba dinkin da aka yi da walda a kan bututun da aka haɗa masu maki ≥ L210/A da diamita ≥ 60.3 mm (inci 2.375) ba tare da lalata su ba don ganin cikakken kauri da tsayi (100%) kamar yadda aka ƙayyade.
Gwajin UT mara lalatawa
Jarrabawar RT mara lalatawa
Duk bututun PSL 2 marasa sumul, da kuma bututun PSL1 Grade B da aka kashe kuma aka daidaita, za a yi musu gwaji mai tsayi (100%) wanda ba zai lalata su ba.
Ana iya amfani da ɗaya ko haɗin ET (Gwajin Electromagnetic), UT (Gwajin Ultrasonic), da MT (Gwajin Magnetic Barticle) don NDT.
Juriyar Girma
An yi cikakken bayani game da buƙatun API 5L don haƙurin girma a cikinAPI 5L Grade BDomin gujewa maimaitawa, za ka iya danna kan rubutun shuɗi don ganin cikakkun bayanai masu dacewa.
Jadawalin Jadawalin Bututun API 5L
Domin sauƙin kallo da amfani, mun tsara fayilolin PDF masu dacewa. Kuna iya saukewa da duba waɗannan takardu idan ana buƙata.
Bugu da ƙari, API 5L yana ƙayyade diamita na waje da aka yarda da shi da kuma kauri na bango da aka ƙayyade.
Juriyar Girma
An yi cikakken bayani game da buƙatun API 5L don haƙurin girma a cikinAPI 5L Grade BDomin gujewa maimaitawa, za ka iya danna kan rubutun shuɗi don ganin cikakkun bayanai masu dacewa.
Kayayyakinmu Masu Alaƙa
Tun lokacin da aka kafa ta a shekarar 2014,Botop Karfeya zama babban mai samar da bututun ƙarfe na carbon a Arewacin China, wanda aka san shi da kyakkyawan sabis, kayayyaki masu inganci, da kuma cikakkun hanyoyin magance matsaloli.
Kamfanin yana bayar da nau'ikan bututun ƙarfe na carbon da kayayyaki masu alaƙa, gami da bututun ƙarfe na ERW, LSAW, da SSAW marasa sulɓi, da kuma cikakken jerin kayan haɗin bututu da flanges. Kayayyakinsa na musamman sun haɗa da ƙarfe masu inganci da ƙarfe marasa austenitic, waɗanda aka ƙera don biyan buƙatun ayyukan bututu daban-daban.
