Muab piv rau Q355B thiab Q345B Hlau Rau Automotive Qhov Chaw
Q355B thiab Q345B yog ob qho tib si qis-} {{{3} {{3} {{3} {{3} { Thaum lawv cov tshuaj lom neeg muaj pes tsawg leeg sib txawv me ntsis, lawv txoj kev haum me ntsis, lawv cov kev haum rau cov khoom lag luam lag luam tseem txawv me ntsis.
Qhov txawv txawv ntawm cov khoom lag luam hauv tsheb
1. Lub zog tau zoo: Q355B yog qhov tsim nyog dua rau high- Log Cheebtsam
Cov txiaj ntsig lub zog ntawm Q355B yog 10 MPa siab dua li ntawm Q345b. Thaum qhov sib txawv tsis tseem ceeb, hauv cov khoom siv kom nquag ua haujlwm (kwv yees li ntawm lub tsheb sib tw
Q345B, nrog me ntsis qis zog, yog qhov tsim nyog dua rau cov khoom nrog nruab nrab tsheb chasger Thaum muaj zog heev yog tsis xav tau, nws cov ntawv muaj me ntsis zoo dua li Q355B (vim nws qis dua cov ntsiab lus carbon monoxide me ntsis) {} weldability: Q345B muaj qhov zoo me ntsis.
Q345B muaj cov ntsiab lus roj teeb txo qis (0.20%) dua Q355B (0.24%), ua rau muaj kev pheej hmoo qis dua thaum lub sij hawm vuam thiab qis dua kev pheej hmoo ntawm kev tawg. Qhov no yog qhov tseeb tshwj xeeb rau tuab lub phaj vuam (xws li hauv kev lag luam tsheb yog yooj yim thiab haum rau automated ntau lawm.
Q355B vuam yuav tsum muaj me ntsis stricter tshav kub kev tswj hwm (piv txwv li, txo cov ntsiab lus ntawm weld brittleness, tso me ntsis siab dua cov ntsiab lus ntawm cov txheej txheem vuam.
3. Daim ntawv Firability: Q345B yog qhov tsim nyog rau cov nyom.
Ob cov ntaub ntawv muaj elongation ntawm ntau dua los yog sib npaug rau 22%, tab sis Q345B, vim nws me ntsis cov ntsiab lus cov pa roj carbon, muaj me ntsis zoo dua zoo dua. Yog li ntawd, qhov kev pheej hmoo ntawm cov cracking yog qis dua me ntsis ntawm qhov ntawm no yog khoov ntawm txias thiab} bend ntawm lub qhov rooj anti {{5 5}} kev sib tsoo nqaj). Txog qhov yooj yim, xws li cov ncej crossmembers), qhov sib txawv hauv cov muaj kev muaj peev xwm ntawm ob qib yog negligible.
4. Tus nqi thiab daim ntawv thov kev xaiv
Tus nqi: Vim nws lub zog siab dua thiab tswj tau ntau dua ntawm cov khoom siv alloy thaum lub sijhawm smelting, q355b feem ntau kim dua Q345B.
Daim Ntawv Thov Qhia:
Q345B yog qhov tsim nyog dua rau tsis - cov txheej txheem kev txhawb nqa (xws li chasger lub zog, muab tus nqi zoo dua- kev piv.
Q355B yog qhov tsim nyog dua rau high {1} Gration Cov Khaub Ncaws (xws li tsav tsheb sab nraud (cov tsheb tsim khoom) hauv cov khoom lag luam hnyav dua (xws li cov thav duab bumper). III. Cov ntsiab lus: Qhov sib txawv tsawg kawg, xaiv raws li kev xav tau
Cov kev ua yeeb yam sib txawv ntawm Q355B thiab Q345B yog tsawg heev. Hauv qhov chaw lag luam lag luam, lawv tsis yog "hloov" tab sis theej "kev hloov kho" kev hloov kho "
Yog tias ib feem yuav tsum muaj kev deformation me ntsis tsis kam thiab tuaj yeem lees txais tus nqi ntau dua, xaiv Q355B;
Yog tias ib feem yuav tsum tau yooj yim dua cov txheej txheem vuam lossis ntau cov kev ua kom txias ntau ntxiv, xaiv Q345B.
Hauv kev siv cov kev siv, ob feem ntau sib pauv tau (raug rau kev pov thawj zog). Cov kev xaiv kawg yog nyob ntawm cov pob zeb zeb ntau rau cov khoom ruaj khov thiab tswj tus nqi.