Nyob rau hauv lub tshav pob ntawm cov roj drilling thiab roj zoo, high-frequency hluav taws xob kuj welded casing (hu ua ERW casing) piv nrog seamless casing yog siab qhov tseeb, weld toughness, anti-extrusion ntawm high-kev ua tau zoo, thiab tus nqi qis zoo, uas. tau siv dav hauv cov teb chaws txawv teb chaws, thiab tau txais txiaj ntsig zoo.

Cov yam ntxwv ntawm ERW casing (piv nrog seamless casing)
Qhov siab qhov tseeb: ERW casing siv cov txheej txheem sizing tom qab molding, precision seamless casing tau nce nws qhov loj me (sab nraud txoj kab uas hla, phab ntsa thickness, roundness, thiab lwm yam), thiab nws txoj kab uas hla sab nraud sib txawv tsis tshaj ± 0 Qhov Nruab Nrab .5%. Xws li ua los ntawm Nippon Steel 6244.5 n'un ERW casing thickness standard deviation ntawm <0.10 zeb coj seamless casing txheem deviation yog 0.41 zeb.

Zoo weld toughness: ERW casing manufacturing txheej txheem tuaj yeem lav kom tau txais C, S thiab P cov ntsiab lus tsawg hauv cov koom haum tivthaiv thiab cov khoom siv ntawm lub zog siab, siab tawv ntawm cov vuam, lub tes tsho weld toughness seamless kom lub tes tsho raj. .

Anti-extrusion lub antiknock zog: siab zog 30% mus rau 40% piv nrog zoo xws li API seamless casing, ERW casing anti-extrusion, anti-knock zog (sab hauv siab) txog 50% siab dua.

Advanced technology, khoom zoo tswj: ERW lub tes tsho puag hlau tswj dov kauj, isotropic, 100% tsis muaj kev puas tsuaj.

Tus nqi qis: piv nrog seamless casing zoo sib xws, ERW casing 5% mus rau 10% tus nqi qis, kev ua haujlwm siab, qib siab ntawm kev siv tshuab thiab automation, tsawg zog noj thiab ntau lawm; ERW casing tiav cov khoom lag luam tus nqi ntawm 93% mus rau 98%, thiab seamless casing cov khoom tiav ntawm 85% mus rau 90%; ERW casing tag nrho qhov project peev yog 40% qis dua qhov project seamless casing.

Cov yam ntxwv ntawm ERW casing
(1) Kev xaiv cov khoom siv raw tswj dov kauj, kev tswj nruj ntawm cov ntsiab lus ntawm S thiab P, thiab cov pa roj carbon sib npaug, feem ntau W (S) ≤ 0.015%, carbon sib npaug ≤ O. 25%. Thiab siv cov khoom siv micro-alloying xws li Nb, V, Ti, thiab cu txhim kho cov tawv tawv ntawm cov hlau los txhim kho weldability thiab corrosion kuj.

(2) Thick coil tom qab kho ntug milling, tuaj yeem txo qhov vuam burrs tshwm sim los ntawm lub zos overheating thiab oxidation.

(3) Kev siv dav dav siv cov hlua khi rau kev tsim khoom tas mus li, tsis muaj qhov yob-rau-ntim batch tsim los ntawm kev sib tsoo, ua rau rov pib vuam, vuam tam sim no, tsis muaj zog vim cov khoom tsis zoo.

(4) Feem ntau siv nyob rau hauv lub xeev-of-the-art hydraulic tshem tawm cov txheej txheem burrs, casing puab burr siab tswj 1.14 NLNL.

(5) Tsis siv neeg vuam nruj, suav nrog lub zog nkag, vuam V-zoo li lub kaum sab xis, vuam ceev, vuam kub tswj. Vuam kub los ntawm high-frequency welding ceev ntawm lub voj kaw lub hwj chim tswj, tswj qhov hloov pauv ntawm tsawg dua ± 5 ℃.

(6) Kev tsom mus rau kev kho cua sov tom qab vuam, los ntawm kev kho cua sov tom qab vuam los txhim kho lub koom haum thiab kev ntxhov siab sab hauv ntawm thaj chaw weld.

(7) Ua kom lub zog siab thiab sizing chav tsev, txo qhov loj precision tiav.

(8) Rau cov vuam thiab hlau raws li tag nrho-kab kab lossis off-line tsis muaj kev puas tsuaj, kev kuaj xyuas raws sijhawm thiab raug, txhawm rau txhawm rau kho cov txheej txheem tsim khoom raws sijhawm kom ntseeg tau cov khoom zoo.