Khoom Internal Metallurgical Structure & Tubular Mechanical Structure
Peb lub siab toughness alloy structural steel raj txais tag nrho seamless ib tug tubular qauv, kiag li tso tseg welded yeeb nkab seam tsis xws luag uas yooj yim ua rau kev nyuaj siab concentration thiab nkig tawg nyob rau hauv alternating load. Lub hauv paus hlau metallurgical qauv yog refined tempered sorbite cov ntaub so ntswg tom qab meej quenching & tempering tshav kub kho, matched nrog micro-alloy grain refinement system tsim los ntawm Cr, Mo, Mn, Ni, Nb composite alloy ntsiab nyob rau hauv steel matrix. Los ntawm tus ntoo khaub lig-section tubular qauv, peb tswj cov phab ntsa thickness kam rau ua nyob rau hauv ± 0.7% txheej kab, phab ntsa thickness yuam kev tsawg dua los yog sib npaug rau 0.04 hli rau precision txias- kos series; cov phab ntsa sab hauv thiab sab nrauv tau txais cov oxide du - dawb ua tiav tom qab descaling txhaj tshuaj blasting, tsis muaj qhov tawg, quav, khawb lossis suav nrog qhov tsis xws luag. Cov ntaub so ntswg hauv cov hlau ua tiav equiaxed grain piv ntau dua 38%, qhov nruab nrab xoob qib tswj qis dua Qib 1.5, tsis tshua muaj sab hauv micro-kev pheej hmoo tawg, uas yog lub hauv paus tseem ceeb kom paub txog ultra- muaj kev cuam tshuam toughness ntawm qis kub thiab hnyav load. Sib txawv ntawm cov pa roj carbon monoxide zoo tib yam thiab cov yeeb nkab sib txuas, cov khoom siv no tsim cov qauv qis -carbon low- cov tshuaj lom neeg tsis huv: cov pa roj carbon pawg nruj nruj txwv tsawg dua lossis sib npaug li 0.28%, sulfur & phosphorus teeb meem impurities tswj qis dua 0.020% raws li kev tiv thaiv brittleness ntawm cov nplej. Alloy cov ntsiab lus yog proportioned nyob rau hauv gradient: chromium txhim kho oxidation kuj thiab hardenability, molybdenum tshem tawm temper brittleness nyob rau hauv ntev -lub sij hawm alternating kub, npib tsib xee stabilizes qis- kub yas deformation muaj peev xwm, niobium & vanadium me me particles pin grain coarse senature 1} temperate kev pab cuam thaum lub sij hawm grain dual kev tiv thaiv ntawm tubular macro qauv thiab hlau micro ntaub so ntswg
High Toughness Performance Core Production Process High Toughness Performance
Tag nrho cov kev tsim tawm nruj me ntsis ua raws li lub tshuab nqus tsev smelting-kub tho-precision dov-tswj kev kho cua sov- tsis muaj kev puas tsuaj kaw cov txheej txheem, txhua tus txheej txheem tsom rau kev ua kom zoo dua qub:
Ua ntej, cov khoom siv raw round billet txais LF refining + VD nqus tsev degassing, tshem tawm hydrogen, oxygen gas hauv molten steel kom tsis txhob hydrogen-induced cracking nyob rau hauv kev cuam tshuam load; ces 1200℃qhov kub thiab txias annular rauv cua sov, conical roller skew tho los ua cov raj dawb paug, cov hlau tsis sib xws los tiv thaiv ib qho - cov ntaub so ntswg segregation; nruam dov zeb faib deformation gradient tsim nyog los txo cov seem rolling kev nyuaj siab nyob rau hauv cov yeeb nkab phab ntsa.
Cov txheej txheem tseem ceeb uas txiav txim siab siab tawv yog kev kho cua sov sib xyaw: quenching kub 860-890℃kev txuag hluav taws xob, roj txias kom sib npaug zog thiab plasticity; nruab nrab kub tempering ntawm 540-630℃adjustable kub, cov neeg tuaj yeem xaiv qis tempering rau siab dua tensile lub zog los yog siab tempering rau ultra-siab low-temperature impact toughness. Tom qab kev kho cua sov, kev ntxhov siab ntxiv tuav yog ntxiv kom tshem tawm cov kev ntxhov siab hauv kev ua haujlwm, tsis txhob deformation thaum lub sij hawm tom qab machining thiab sib dhos.
Tus qauv & txheej txheem-Drived Unique Product Characteristics
Uniform tag nrho cov ntaub so ntswg kev ua tau zoo: Tsis muaj lub hauv paus toughness attenuation, tag nrho cov yeeb nkab muaj peev xwm dais cyclic cuam tshuam, dabtsi yog khoov, torsion composite load tsis nkig puas;
Tsis tshua muaj kub los tiv thaiv- cov khoom nkig: Charpy cuam tshuam lub zog tseem ceeb tshaj 60J ntawm -40 degree, haum rau alpine, polar regional engineering qauv;
Kev sib sib zog nqus ua tau zoo heev: Hardness HB180-230 tom qab kev kho cua sov, txiav yooj yim, drilling, khoov, vuam yam tsis muaj txheej txheem ua ntej;
Cov qauv ruaj khov: Cov thermal expansion coefficient me me, tsis muaj deformation mus tas li nyob rau hauv ntev -lub sij hawm siab kub thiab kub hloov ua haujlwm.
Cim npe nrov: siab toughness alloy structural steel raj, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, pheej yig, luv nqi
