① Sab nraud txoj kab uas hla kam rau ua
Seamless steel yeeb nkab: Cov txheej txheem kub dov yog siv, thiab qhov ntsuas tau ua tiav ntawm thaj tsam 8000C. Cov khoom siv raw muaj pes tsawg leeg, cov cua txias, thiab cov xwm txheej txias ntawm cov yob ntawm cov yeeb nkab steel muaj qhov cuam tshuam zoo rau nws txoj kab uas hla. Yog li ntawd, kev tswj txoj kab uas hla sab nraud yog qhov nyuaj rau qhov tseeb thiab hloov pauv. Ntau yam loj dua.
ERW steel yeeb nkab: txais yuav txias khoov thiab sizing los ntawm 0.6% txoj kab uas hla. Cov txheej txheem kub yog qhov tsis tu ncua ntawm chav tsev kub, yog li lub taub sab nraud yog tswj kom raug thiab qhov kev hloov pauv me me, uas yog qhov tsim nyog rau kev tshem tawm cov buckles dub;

② Phab ntsa thickness kam rau ua
Seamless steel yeeb nkab: Ua los ntawm puag ncig steel perforation, phab ntsa thickness sib txawv yog loj. Tom qab kub dov tuaj yeem tshem tawm cov phab ntsa tuab tsis sib xws, tab sis tam sim no, cov chav siab tshaj plaws tsuas tuaj yeem tswj tau hauv ± 5 ~ 10% t.
ERW steel yeeb nkab: kub-dov coils yog siv los ua cov ntaub ntawv raw, thiab lub thickness kam rau ua niaj hnub kub dov strips tuaj yeem tswj tau li ntawm 0.05mm.

③ Cov tsos mob
Cov txheej txheem sab nrauv ntawm cov blanks siv hauv seamless steel kav tsis tuaj yeem raug tshem tawm los ntawm cov txheej txheem kub dov. Lawv tsuas tuaj yeem polished tom qab cov khoom tiav tiav. Txoj kev kauv sab laug tom qab perforation tsuas yog tshem tawm ib nrab thaum lub sij hawm txo cov phab ntsa.
ERW steel kav siv kub dov coils ua raw khoom. Qhov zoo ntawm cov coils yog qhov zoo ntawm ERW steel kav. Qhov zoo ntawm qhov kub-dov coils yog qhov yooj yim los tswj thiab muaj qhov zoo dua. Yog li ntawd, qhov zoo ntawm ERW steel kav yog zoo dua li seamless steel kav.

④Ovality
Seamless steel yeeb nkab: Siv cov txheej txheem kub dov, cov khoom siv raw muaj pes tsawg leeg, cov cua txias, thiab cov txheej txheem txias ntawm cov yob tag nrho muaj kev cuam tshuam zoo rau sab nraud ntawm cov yeeb nkab steel. Yog li ntawd, kev tswj txoj kab nruab nrab sab nraud yog qhov nyuaj rau kev tswj kom raug, thiab qhov kev hloov pauv loj yog qhov loj.
ERW steel yeeb nkab: Nws yog tsim los ntawm txias dabtsi yog khoov, yog li lub sab nraud txoj kab uas hla yog tswj kom raug thiab qhov sib txawv ntawm qhov sib txawv me me.

⑤ Tensile xeem
Lub tensile kev ua tau zoo ntawm seamless steel kav thiab ERW steel kav ob leeg ua tau raws li API cov qauv, tab sis lub zog ntawm seamless steel kav feem ntau yog nyob rau sab sauv txwv thiab cov yas yog nyob rau hauv qis qis. Nyob rau hauv kev sib piv, lub zog Performance index ntawm ERW steel kav yog qhov zoo tshaj plaws, thiab cov plasticity index yog 33.3% siab tshaj tus qauv. , yog vim li cas yog qhov kev ua tau zoo ntawm cov kub dov coils, cov khoom siv raw ntawm ERW steel kav, tau lees paub siv microalloying smelting, tawm ntawm qhov cub refining, thiab tswj kom txias thiab dov; seamless steel kav feem ntau vam khom cov ntsiab lus ntawm cov pa roj carbon ntau ntxiv, uas ua rau nws nyuaj los xyuas kom meej lub zog thiab plasticity. kev sib tw tsim nyog.

⑥ Hardness
Cov khoom siv raw ntawm ERW steel kav - kub dov coils, muaj qhov siab tshaj plaws hauv kev tswj kom txias thiab dov thaum lub sijhawm dov, uas tuaj yeem ua kom muaj kev ua tau zoo ntawm txhua qhov ntawm cov coils.

⑦ Cov qoob loo loj
Cov khoom siv raw ntawm ERW steel yeeb nkab - kub dov sawb kauj yog ua los ntawm dav thiab tuab nruam casting billet, uas muaj cov tuab zoo-grain nto solidification txheej, tsis muaj columnar siv lead ua cheeb tsam, shrinkage kab noj hniav thiab looseness, me me sib txawv, thiab ntom. qauv; Nyob rau hauv cov txheej txheem dov tom ntej Ntawm lawv, daim ntawv thov ntawm kev tswj cua txias thiab tswj dov tshuab ntxiv kom paub meej cov nplej loj ntawm cov khoom siv raw.

⑧ Kev ntsuas qhov sib tsoo
ERW steel yeeb nkab yog tus cwj pwm los ntawm nws cov khoom siv raw thiab cov txheej txheem ua yeeb nkab. Nws cov phab ntsa thickness uniformity thiab ovality yog zoo dua li cov seamless steel kav, uas yog lub ntsiab yog vim li cas vim li cas nws cov anti-collapse kev ua tau zoo siab tshaj ntawm seamless steel kav.

⑨ Kev sim cuam tshuam
Txij li qhov cuam tshuam toughness ntawm lub hauv paus khoom ntawm ERW steel kav yog ob peb zaug ntawm seamless steel kav, qhov cuam tshuam toughness ntawm weld yog tus yuam sij rau ERW steel kav. Los ntawm kev tswj cov impurity cov ntsiab lus ntawm raw cov ntaub ntawv, qhov siab thiab kev taw qhia ntawm slitting burrs, cov duab ntawm tus tsim sawv, lub vuam lub kaum sab xis, vuam ceev, cua sov zog, thiab zaus, vuam extrusion tus nqi, nruab nrab zaus tshem tawm kub thiab qhov tob, huab cua Qhov txias txias ntev thiab lwm cov txheej txheem tsis ua kom ntseeg tau tias qhov cuam tshuam lub zog ntawm lub vuam ncav cuag ntau dua 60% ntawm lub hauv paus hlau. Yog tias ua kom zoo dua ntxiv, qhov cuam tshuam lub zog ntawm cov vuam tuaj yeem nyob ze rau ntawm cov niam txiv hlau. cov ntaub ntawv, uas ua rau ib tug seamless kev ua tau zoo.

⑩Explosion test
Kev ntsuas tawg ntawm ERW steel kav yog ntau dua li cov qauv yuav tsum tau ua, feem ntau yog vim qhov siab sib xws ntawm cov phab ntsa tuab thiab cov kab nruab nrab ntawm ERW steel kav.

⑪ Kev ncaj ncees
Seamless steel kav yog tsim nyob rau hauv ib lub xeev yas, thiab nrog ib tug ib tug kav (3 mus rau 4 zaug ib tug pas ntsuas rau nruam dov), qhov ncaj ntawm cov yeeb nkab kawg yog qhov nyuaj rau tswj;
ERW steel kav yog cov txheej txheem txias thiab muaj online ncaj nraim hauv lub xeev txoj kab uas hla. Tsis tas li ntawd, lawv yog infinitely multiplied, yog li qhov ncaj yog zoo dua.

⑫Ntau cov hlau siv rau casing ib 10,000 meters ntawm footage
Cov phab ntsa thickness ntawm ERW steel kav yog ib yam thiab nws cov phab ntsa thickness kam rau ua yog negligible, thaum lub sij hawm tswj qhov tseeb txwv ntawm phab ntsa thickness sib txawv ntawm seamless steel kav yog ± 5% t, uas yog feem ntau tswj ntawm ± 5 ~ 10% t. Txhawm rau kom ntseeg tau tias qhov tsawg kawg nkaus ntawm phab ntsa tuab tuaj yeem ua tau raws li cov qauv kev xav tau thiab kev ua tau zoo, qhov kev daws teeb meem nkaus xwb yog txhawm rau txhim kho phab ntsa tuab kom tsim nyog. Yog li ntawd, rau casing ntawm tib yam specifications thiab hnyav, ERW steel kav yog 5 mus rau 10% ntev tshaj seamless steel kav, los yog ntau tshaj, uas txo cov steel noj casing ib 10,000 meters ntawm footage los ntawm 5 mus rau 10%. Txawm hais tias tib tus nqi, ERW steel kav zoo li txuag cov neeg siv 5 txog 10% ntawm cov nqi yuav khoom.

Cov ntsiab lus: Txawm li cas los xij, tam sim no lub teb chaws thiab txawv teb chaws tseem siv seamless, vim tias tam sim no casing steel qib ntawm ERW steel kav tsuas yog tswj tau siab tshaj K55. Yog tias qib steel siab dua, peb tsis muaj peev xwm tsim khoom hauv tsev. Raws li qhov tam sim no ERW steel yeeb nkab kev lag luam muaj kev txhawj xeeb, cov khoom siv Japanese ntau lawm thiab cov tshuab tsim khoom tseem tuaj yeem ncav cuag ib theem rau kev tsim cov casing, tab sis lawv tsuas tuaj yeem tsim tau txog N80. Yog tias koj xav tsim P110 lossis siab dua qib steel, tam sim no muaj qee qhov txwv. Kev nyuaj, yog li ERW steel yeeb nkab tsuas yog siv tau los ua ib qho saib.