S355J2 Phaj

S355J2 Plate

"S": Qhia tias steel phaj ua raws li European tus qauv (Euro Norm).

"355": Qhia cov qib siab ntawm cov hlau phaj, hauv MPa. Qhov no txhais tau hais tias nyob rau hauv cov qauv kev sim, qhov siab tshaj plaws uas cov phaj hlau tuaj yeem tiv taus (tsis muaj deformation mus tas li) yog 355MPa lossis siab dua.

"J2": Qhia cov qib zoo ntawm cov hlau phaj. Ntawm no, "J2" txhais tau hais tias cov phaj hlau muaj kev cuam tshuam zoo ntawm qhov kub ntawm -20 degree .

Txoj kev tsim muaj xws li steelmaking, cua sov, dov thiab normalizing txheej txheem; cov txheej txheem dov txais kev tswj cov txheej txheem dov. Nyob rau hauv cov txheej txheem dov, lub ingot dov kub yog {{0}} degree ; thawj theem tau txais kev ceev ceev loj-txo qis dov txheej txheem, theem siab kub yog 950-1000 degree, dov ceev yog 1.6-2.0 m / s, tus nqi txo ib zaug yog 15-20%, thiab tus nqi txo qis yog 40-45%, kom paub meej txaus deformation ntawm ingot. Thawj theem dov kub yog 910-930 degree , thiab qhov kawg dov kub yog tsawg dua los yog sib npaug rau 870 degree . 1. Cov txheej txheem steelmaking txais cov txheej txheem smelting ua ke nrog lub tshuab hluav taws xob + LF rauv. Thaum lub sij hawm VD nqus tsev kho mob, lub tshuab nqus tsev kawm ntawv tau lees tias yuav tsawg dua los yog sib npaug rau 66Pa, lub tshuab nqus tsev lub sij hawm yog 20-25min, thiab lub ingot yog ua tom qab tawg cua. 2. Nyob rau hauv cov txheej txheem cua sov, lub ingot yog rhuab nyob rau hauv ib tug sov so rauv, lub siab tshaj plaws cua sov kub yog 1270 degree, thiab lub soaking seem kub yog 1250-1260 degree, los xyuas kom meej uniform cua sov sab hauv thiab sab nraum lub ingot. 3. Normalizing txheej txheem: steel phaj yog normalized nyob rau hauv qab cub, qhov normalizing kub ntawm steel phaj yog 880-910 degree, thiab tuav lub sij hawm yog 1.8-2.2min/mm, thiab qhov yuav tsum tau S355J2+N-Z35 steel phaj tau txais.

Piv nrog rau lub teb chaws tus qauv GB/T1591-2007, GB/T3274-2008 Q345D, nws lub xeev tus me nyuam yog normalized, qhov cuam tshuam yog -20 degree cuam tshuam kuaj, J2 yuav tsum tsis zoo 20 degree cuam tshuam, raws li rau cov nram qab no + N txhais tau hais tias sib npaug dov ib txwm hluav taws tsis yog qhov hluav taws kub ib txwm, tab sis yog ib txoj hauv kev rau npe cov qib steel hauv tus qauv.

S355j2g3: Tsawg alloy siab lub zog steel Q345 S355J2G3 yog kwv yees sib npaug rau GB's Q345D S355J2G3. J2G3 txhais tau hais tias lub xeev xa khoom yog tus qauv, thiab lub zog cuam tshuam ntawm -20 degree yog 27J. G3 thiab G4 txhais tau tias deoxidation.

S355J2 steel phaj kuj muaj kev vuam zoo thiab tuaj yeem txuas nrog ntau txoj kev vuam, xws li phau ntawv arc vuam, submerged arc vuam, roj shielded vuam, thiab lwm yam. Thaum lub sij hawm vuam txheej txheem, cov hlau phaj tuaj yeem tswj tau zoo toughness thiab plasticity, thiab yog tsis yoog rau qhov tsis xws li cov kab nrib pleb.

S355J2 steel phaj kuj muaj qhov zoo ntawm qhov kub thiab txias tsis zoo thiab tuaj yeem tuav lub zog muaj zog ntawm -40 degree .

Kev cog lus rau kev tswj hwm nruj thiab kev pabcuam rau cov neeg siv khoom, peb muaj cov neeg ua haujlwm paub txog kev tsim khoom npaj kom tau raws li koj xav tau thiab ua kom cov neeg siv khoom txaus siab. Peb lav koj zoo nyob hauv Suav teb.

Yog tias koj muaj kev xav tau ntau ntxiv thiab cov lus nug txog steel, peb zoo siab los qhia koj!

Cim npe nrov: s355j2 phaj, Tuam Tshoj s355j2 phaj manufacturers, lwm tus neeg, Hoobkas