Q345C ubushyuhe buke bwicyuma umuyoboro wukuri
Icyiciro cy'urukuta rw'uburebure bwa mm δ 5 ≥ %% imbaraga zitanga umusaruro δ S (MPA ≥) ubushyuhe bwikizamini ℃
Q345A ≤ 16 21 345 ntabwo bisabwa
Q345B ≤16 21 345 20
Q345C 16-35 22 ≥325 0
Icyiciro C Si Mn PSV NB Al Ti
Q345A ≤0.20 ≤0.55 ≤1.70 ≤0.045 ≤0.045 0.02-0.15 0.015-0.060 0.02-0.20
Q345B ≤0.20 ≤0.55 ≤1.70 ≤0.040 ≤0.040 0.02-0.15 0.015-0.060 0.02-0.20
Q345C ≤0.20 ≤0.55 ≤1.70 ≤0.035 ≤0.035 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20
Ahanini bitewe na karubone zitandukanye na manganese:
Q235-A
Ibirimo karubone C: 0.14 ~ 0.22; Mn: 0.30 ~ 0,65;
Q235-B
Ibirimo karubone C: 0.12 ~ 0.20; Mn: 0.30 ~ 0.70;
Ikoreshwa mubice bya karburize cyangwa cyanide hamwe ningufu zingirakamaro zingirakamaro, nko gukurura inkoni, guhuza inkoni, hook, bolt, shaft na weldment
Hagomba kubaho imbogamizi ku bushyuhe!
Cyane cyane Q345E. Impamyabumenyi icumi munsi ya zeru.
Mubyongeyeho, ugereranije nibisanzwe bishaje, ikigaragara cyane mubisabwa bishya ni uguhindura Mn mubyuma kuva 1.0-1.60 kugeza kuri 70 1.70, hanyuma ugahagarika igipimo ntarengwa cya ≥ 1.0.
Q345C umuyoboro wicyuma nikimwe mubikoresho byumuyoboro wibyuma.
Q345A, Q345B, Q345C, Q345D na Q345E ni amanota meza. Ziyongera kuva kuri a kugeza kuri e, cyane cyane bitewe nubudasa bwubushyuhe bwingaruka ziterwa nibintu bitandukanye bigize mikorobe nka fosifore na sulfure, ibyo bikaba bigaragaza itandukaniro ryubushyuhe bwingaruka hamwe nubukanishi bwibikoresho bya chimique.
Q345A, nta ngaruka; Q345B, 20 ° ingaruka zubushyuhe busanzwe; Q345C, Impamyabumenyi 0; Q345D, ni - Impamyabumenyi 20; Q345E ni - Ingaruka ya dogere 40. Ku bushyuhe butandukanye bwubushyuhe, ingaruka zingaruka nazo ziratandukanye.
Q imbaraga zumusaruro ntabwo ziri munsi ya 345mp, kandi urwego rwubuziranenge rwerekana ko rurimo ibintu byanduye (karubone, manganese, silikoni, sulfure na fosifore). Nubunini bwumwanda (element) mubyuma. Nyuma yaho A, B, C na D, ntigabanye ibirimo umwanda
Q345A irimo fosifore na sulferi munsi cyangwa ihwanye na 0.045%
Q345B irimo fosifore na sulferi munsi cyangwa ihwanye na 0.040%
Q345C irimo fosifore na sulferi munsi cyangwa ihwanye na 0.035%
Q345D irimo fosifore na sulferi munsi cyangwa ihwanye na 0.030%
Q345E irimo fosifore na sulferi munsi cyangwa ihwanye na 0.025%
Uko umwanda wa fosifore na sulfure byinshi mubyuma, niko ingaruka mbi zikomeye
Q345A
Q345B Akv ntabwo ari munsi ya 34 kuri 20 ℃
Kuri Q345C 0 ℃, Akv ntishobora kuba munsi ya 34
Q345D - Akv itari munsi ya 34 kuri 20 ℃
Kuri Q345E - 40 ℃, Akv ntabwo iri munsi ya 27
Impamvu yanyuma nuko igabanuka rya P na s mubyuma biteza imbere kunoza ubukana bwingaruka kubushyuhe buke. Imwe ni imiti ya Q345 indi ni imiterere ya Q345
C≤0.2% ， Mn 1.0-1,6% ，
Si ≤0.55%,
S ≤0.35%,
P ≤0.35%,
V 0.02-0.15%,
Nb 0.015-0.06%,
Ti 0.02-0.2%,
AL ≥0.015%
Ibikoresho bya mashini ni:
Imbaraga zitanga umusaruro: ≥ 345mpa (uburebure buri munsi ya 16mm)
Imbaraga zingana: 470-630mpa
Kurambura: 22%
Ingufu zingaruka: ≥ 34j (ubushyuhe bwikizamini 0 °)
180 ° ikizamini cyo kunama:
D = 2A (uburebure buri munsi ya 16mm)
Imbaraga zitanga umusaruro: ≥ 345mpa (uburebure buri munsi ya 16mm)
Imbaraga zingana: 470-630mpa
Kurambura: 22%
Ingufu zingaruka: ≥ 34j (ubushyuhe bwikizamini 0 °)
180 ° ikizamini cyo kunama:
D = 2A (uburebure buri munsi ya 16mm)
