Hauv API 5CT tus qauv rau casing thiab tubing,Kev kho cua sovyog lub hauv paus tseem ceeb uas txiav txim siab cov yeeb nkab cov khoom siv kho tshuab, cov qauv metallographic, thiab kev pabcuam lub neej downhole. Cov txheej txheem kev kho cua sov sib txawv ua raws li "genetic code" rau cov hlau, tso cai rau nws hloov mus rau ib puag ncig xws li qhov dej ntiav mus rau qhov tob - hiav txwv lossis siab - corrosion kuj.
Kev sib piv ntawm cov txheej txheem kev kho cua sov
| Lub npe txheej txheem | Cov ntawv luv | Kev piav qhia | Hom Qib | Kev ua haujlwm nta |
| normalizing | N | Rhaub saum lub ntsiab lus tseem ceeb thiab txias ib txwm nyob hauv huab cua. | N80-1, J55 / K55 (yeem) | Refines grain loj, uniform qauv, nruab nrab nqi. |
| Normalizing & Tempering | N&T | Normalizing ua raws li cua sov hauv qab ntawm qhov tseem ceeb thiab txias. | N80-1 (ib nrab) | Tshem tawm cov kev ntxhov siab sab hauv los ntawm normalizing; txhim kho ductility / toughness. |
| Quenching & Tempering | Q&T | Kev txias sai sai (dej / roj) tom qab cua sov (Quenching), ua raws li Tempering. | N80-Q, L80, P110, Q125 | Superior mechanical kev ua tau zoo. Siab zog, siab toughness, thiab siab tshaj stability. |
| Raws li - dov | N/A | Cua- txias ncaj qha tom qab txheej txheem dov yam tsis muaj kev kho mob ntxiv. | J55, K55 | Tus nqi qis tshaj. Ua tau raws li qhov yuav tsum tau ua tab sis kev ua tau zoo tuaj yeem hloov pauv. |
Vim li cas Kev Kho Kub Kub Tseem Ceeb
(1) N80-1 (Normalized) vs N80-Q (Quenched & Tempered)
Qhov no yog cov lus nug nquag tshaj plaws los ntawm cov neeg ua haujlwm muag khoom txawv teb chaws. Txawm hais tias lawv qhia tib lub zog tawm los, lawv cov kev ntseeg sab hauv txawv:
N80-1:Mus txog lub zog los ntawm normalizing. NwsCollapse Resistanceyog tus qauv, ua rau muaj kev pheej hmoo siab dua hauv qhov nyuaj siab - ib puag ncig siab.
N80-Q:Ua raws li cov txheej txheem Q&T. Nws cov qauv yogTempered Sorbite, muab superior cuam tshuam toughness thiab siab dua vau tsis kam tshaj N80-1.
Cov lus qhia txog kev yuav khoom:Yog tias lub qhov dej sib sib zog nqus nrog kev hloov pauv siab, nco ntsoov qhia N80-Q.
(2) Kev Pab Cuam (H2S) thiab L80 Qib Tswj
Hlau yog qhov muaj feem cuam tshuam rau hydrogen embrittlement hauv H2S ib puag ncig.
L80 qibcevyuav tsumsiv covQ&Ttxheej txheem nrog nruj tswj kub. Lub hom phiaj yog los xyuas kom meej tias tsis muaj cov seem martensite seem thiab tias covHardness yog nruj me ntsis raws li 23 HRC.
Pain Point Solution:Tsuas yog ib txoj kab Q&T precision tuaj yeem lav hardness uniformity thoob plaws tag nrho cov yeeb nkab lub cev, tiv thaivSSC (Sulfide Stress Cracking)downhole.
Koj qhov kev txhawj xeeb thiab peb cov kev daws teeb meem
Thaum kuaj xyuas cov txheej txheem kho cua sov, cov neeg ua haujlwm yuav khoom feem ntau tsom rau peb qhov kev pheej hmoo no:
Tsis muaj Uniformity
Kev txhawj xeeb: Kev ua haujlwm tsis zoo ntawm cov yeeb nkab kawg thiab nruab nrab, lossis "nkim me ntsis" hauv ib pawg.
GNEE Solution: Peb siv lub tshuab ua haujlwm siab, taug kev- nqaj cua sov kho qhov cub nruab nrog siab- qhov ntsuas kub ntsuas qhov ntsuas kub, kom ntseeg tau tias qhov ntsuas kub sib txawv ntawm cov yeeb nkab yog nyob rau hauv± 5 degree.
Impact Toughness
Kev txhawj xeeb: brittle tsis ua hauj lwm thaum tuav lossis siab - kev ua haujlwm siab hauv thaj chaw txias (xws li Canada, Kazakhstan).
GNEE Solution: Rau PSL2 kev txiav txim, peb yuav tsum siv Charpy V-Kev ntsuas qhov cuam tshuam. Peb cov txheej txheem Q&T ua haujlwm tau zoo txo qis -kub toughness.
Authenticity ntawm MTC (Mill Test Certificate)
Kev txhawj xeeb: Cov neeg muab khoom hloov pauv Normalizing (N) rau Quenching & Tempering (Q) kom txuag tau nqi.
GNEE Solution: Peb MTCs qhia meej txog cov cai kho cua sov (xws li "Q"). Cov neeg yuav khoom kuj tuaj yeem txheeb xyuas qhov no los ntawm kev kuaj xyuasYield-rau-Tensile ratio-Q&T steel feem ntau qhia qhov sib piv zoo dua piv rau cov hlau tsis zoo.
GNEE Technical Advantages (Kev hloov pauv -Tom ntej)
Precision Control:GNEE covQuenched & Tempered (Q&T)kab nta lub tshuab dej quenching tag nrho uas tiv thaiv cov yeeb nkab deformation thaum ua kom muaj kev hloov pauv martensitic rau siab - qib zog.
Hardness Expertise:RauL80 thiab C90 Sour Servicecov kav dej, peb siv cov txheej txheem nruj tempering kom hardness tsis tu ncua hauv qab no23 HRC, tshem tawm txoj kev pheej hmoo ntawm HIC (Hydrogen-Induced Cracking).
Certified Quality:Txhua batch tau txais kev tshaj tawm nruj heev-kev kho cua sov NDE (Tsis yog-Kev Ntsuas Kev Ntsuas) kom paub tseeb tias lub voj voog thermal tsis tau qhia txog micro- tawg.
GNEE API 5CT OCTG txheej txheem kab
GNEE API OCTG test equipments
GNEE API Casing thiab Tubing daim ntawv pov thawj
FAQ
Q: Puas yog J55 thiab K55 yuav tsum tau kho cua sov?
A:Tsis yog API 5CT tso cai rau J55 / K55 xa hauv ib qhoRaws li - dovxeev. Txawm li cas los xij, txhawm rau ua kom muaj kev ruaj ntseg zoo, GNEE tuaj yeem muab qhov normalizing raws li qhov kev thov kom tau txais cov qauv microstructure ntau dua.
Q: Kuv tuaj yeem txheeb xyuas qhov kev kho cua sov ntawm cov yeeb nkab tiav li cas?
A:Tshaj li stenciling thiab MTC,Kev tshuaj xyuas metallographicyog txoj kev tseeb. Cov qauv zoo ib txwm muaj xws li Ferrite thiab Pearlite, thaum lub sijhawm Quenched & Tempered (Q&T) qauv muaj Tempered Sorbite.
