1 Nti Thick Steel Phaj A387Gr11CL1

 

 

1 Nti Thick Steel Phaj A387Gr11CL1 muaj cov ncauj lus kom ntxaws txog tshuaj lom neeg thiab cov khoom siv kho tshuab:

Chemical composition (%):

• Carbon (C): 0 05 - 0.17

• Manganese (Mn): 0.40 - 0.65

• Silicon (Si): 0.15 - 0.35

• Phosphorus (P): Max 0.025

• Sulfur (S): Max 0.025

• Chromium (Cr): 1.00 - 1.50

• Molybdenum (Mo): 0.45 - 0.65

• Nickel (Ni): Max 0.25

• Copper (Cu): Max 0.25

• Vanadium (V): Max 0.08

Mechanical zog:

• Tensile zog: 515 - 690 MPa

• Yield zog (tsawg kawg): 275 MPa

• Elongation (% hauv 200mm): Min 20

• Elongation (% hauv 50mm): Min 22

• Txo thaj tsam (%): Min 45

• Hardness (Brinell): Max 170 HB

• Charpy V-notch cuam tshuam lub zog ntawm -29 degree (nruab nrab): Min 27 J

 

Cov txheej txheem tsim khoom ntawm 1 Nti Thick Steel Phaj A387Gr11CL1 yog ib qho nyuaj thiab meej ntawm kev ua haujlwm uas yuav tsum tau ua tib zoo saib xyuas kom meej thiab muaj peev xwm thev naus laus zis.

Cov txheej txheem pib nrog kev yuav khoom ntawm cov khoom zoo raw khoom. Kev xaiv cov hlau ore tsim nyog, coke, thiab lwm yam alloying ntsiab yog qhov tseem ceeb heev kom ua tiav cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov phaj kawg steel. Cov ntaub ntawv nyoos no tau ua tib zoo tshuaj xyuas thiab tshuaj xyuas kom ntseeg tau tias lawv cov purity thiab muaj pes tsawg leeg ua tau raws li cov qauv nruj rau A387Gr11CL1.

Thaum cov khoom siv raw tau npaj tiav, cov txheej txheem steelmaking pib. Qhov no feem ntau suav nrog kev siv hluav taws xob arc rauv lossis cov pa oxygen yooj yim, qhov twg cov ntaub ntawv nyoos yog yaj ntawm qhov kub siab heev. Thaum lub sijhawm no, kev tswj xyuas meej ntawm lub cub tawg, xws li qhov kub thiab txias, kev txhaj tshuaj oxygen, thiab kev tsim cov slag, yog qhov tseem ceeb kom tshem tawm cov impurities thiab ua tiav ib homogeneous molten steel da dej.

Tom qab cov hlau tau melted thiab refined, nws yog poured rau hauv loj pwm los ua ingots los yog nruam nrum rau hauv slabs. Cov txheej txheem casting yog ua tib zoo saib xyuas kom txo qis qhov tsim ntawm qhov tsis xws luag xws li porosity thiab kev sib cais.

Cov kauj ruam tom ntej yog cov txheej txheem kub dov. Cov ingots los yog slabs yog reheated rau ib tug haum kub thiab dhau los ntawm ib tug series ntawm dov mills. Qhov kub dov tsis tsuas yog txo cov thickness ntawm cov khoom, tab sis kuj refines lub microstructure, txhim kho cov neeg kho tshuab zog ntawm cov hlau. Tus naj npawb ntawm kev hla thiab qhov txo qis hauv txhua qhov hla tau raug tswj kom ua tiav qhov xav tau phaj tuab thiab cov khoom siv kho tshuab.

Tom qab kub dov, steel phaj yuav raug kho cua sov kom zoo dua nws cov khoom. Cov txheej txheem kev kho cua sov feem ntau rau A387Gr11CL1 muaj xws li annealing, quenching, thiab tempering. Annealing pab daws kev ntxhov siab sab hauv thiab txhim kho ductility, thaum quenching thiab tempering txhim khu lub hardness thiab toughness ntawm cov hlau.

Kev kho deg yog ib qho tseem ceeb ntawm cov txheej txheem tsim khoom. Lub phaj tuaj yeem raug ua raws li cov txheej txheem xws li txhaj tshuaj blasting lossis pickling kom tshem tawm cov nplai lossis cov kab mob ntawm qhov chaw thiab ua tiav qhov huv thiab du nto.

Thoob plaws hauv cov txheej txheem tsim khoom, kev ntsuas kev tswj kom zoo yog siv rau txhua theem. Cov qauv raug coj mus rau kev tshuaj ntsuam xyuas kom ntseeg tau qhov tseeb ntawm cov hlau, thiab cov kev sim uas tsis yog kev puas tsuaj xws li kev kuaj ultrasonic thiab kev tshuaj xyuas cov hlau nplaum yog siv los kuaj xyuas cov teeb meem sab hauv lossis qhov chaw.

Cov kauj ruam kawg suav nrog kev txiav cov hlau phaj mus rau qhov yuav tsum tau muaj qhov ntev thiab cov duab uas siv cov cuab yeej txiav qib siab xws li plasma txiav lossis laser txiav. Cov ntawv txiav yog tom qab kuaj xyuas ib zaug dhau los kom ntseeg tau tias lawv ua tau raws li tag nrho cov kev cai tshwj xeeb ua ntej muab ntim thiab xa mus rau cov neeg siv khoom.

Hauv kev xaus, cov txheej txheem tsim khoom ntawm 1 Nti Thick Steel Phaj A387Gr11CL1 yog kev sib xyaw ntawm cov thev naus laus zis, kev tswj xyuas meej, thiab kev kuaj xyuas zoo. Qhov no ua kom ntseeg tau tias cov khoom kawg muaj cov khoom siv zoo heev thiab cov khoom zoo tsim nyog rau nws cov kev xav tau hauv ntau qhov kev lag luam, tshwj xeeb tshaj yog nyob rau hauv cov hlab ntsha siab thiab qhov kub thiab txias.

 

 

Cim npe nrov: 1 nti tuab steel phaj a387gr11cl1, Tuam Tshoj 1 nti tuab steel phaj a387gr11cl1 lwm tus neeg, hoobkas