Amakuru - Amashanyarazi ashyushye ashyushye: Inkingi yumurima winganda

Muri sisitemu yinganda zigezweho, ibyuma bishyushye bishyushye ni ibikoresho byibanze, kandi itandukaniro ryikitegererezo hamwe nibitandukaniro ryimikorere bigira ingaruka kuburyo butaziguye mubyerekezo byiterambere byinganda zo hasi. Ubwoko butandukanye bwibyuma bishyushye bishyushye bigira uruhare rudasubirwaho mubikorwa byubwubatsi, ibinyabiziga, ingufu, nibindi hamwe nimiterere yihariye yimiti hamwe nubukanishi. Ibikurikira bizibanda ku gusesengura ibyuma bishyushye bishyushye hamwe nibisabwa ku isoko ryinshi kandi bitandukanye.

Imbaraga Zibanze: Q235B na SS400
Q235B nicyuma gikoreshwa cyane mububiko buke bwa karubone mubushinwa, hamwe na karubone igera kuri 0,12% -0,20%, kandi ifite plastike nziza hamwe nubudozi. Imbaraga zayo ni ≥235MPa kandi ikoreshwa cyane mukubaka amakadiri, gushigikira ikiraro hamwe nibice rusange byubukanishi. Mu nganda zubaka, I-beam, ibyuma byumuyoboro nibindi byuma bikozwe muri Q235B ibyuma bishyushye bishyushye bingana na 60%, bishyigikira skeleton yibikorwa remezo byo mumijyi.
SS400 nicyuma gikoreshwa mumahanga ibyuma bya karubone bifite imbaraga zisa na Q235B, ariko kugenzura cyane imyanda ya sulfure na fosifore hamwe nubuziranenge bwubutaka. Mu rwego rwo kubaka ubwato, SS400 ibishyushye bishyushye bikoreshwa mubice byubaka. Kurwanya kwangirika kwinyanja kuruta ibyuma bisanzwe bya karubone, bikarinda umutekano wurugendo rwinyanja.

Igishyushye Cyuzuye Cyuma - Itsinda ryumwami

Abahagarariye imbaraga nyinshi: Q345B na Q960
Q345B nicyuma gike cyane-cyuma-gifite imbaraga zingana na 1.0% -1,6% manganese yongeyeho, kandi imbaraga zumusaruro ziri hejuru ya 345MPa. Ugereranije na Q235B, imbaraga zayo ziyongereyeho 50%, mugihe gikomeza gusudira neza. Mu bwubatsi bwikiraro, udusanduku twibisanduku bikozwe muri Q345B ibyuma bishyushye bishyushye birashobora kugabanya ibiro 20%, bikagabanya cyane ibiciro byubwubatsi. Muri 2023, kubaka ikiraro murugo bizatwara toni zirenga miliyoni 12 za Q345B zishyushye zishyushye, bingana na 45% byumusaruro wose wubwoko.
Nkumuntu uhagarariye ibyuma byimbaraga-ndende cyane, Q960 igera ku musaruro wa 60960MPa ukoresheje tekinoroji ya microalloying (wongeyeho vanadium, titanium nibindi bintu) hamwe no kugenzura no gukonjesha. Mu rwego rwimashini zubwubatsi, ubunini bwikiganza cya crane bikozwe muri Q960 bishyushye bishyushye birashobora kugabanuka kugera kuri munsi ya 6mm, kandi ubushobozi bwo gutwara imizigo bwiyongereyeho inshuro 3, buteza imbere kuzamura ibikoresho byoroheje nka excavator na crane.

Ibipimo bidasanzwe: SPHC na SAPH340
SPHC nigicuruzwa cyo murwego rwohejuru hagati yicyuma gishyushye gike-karubone. Muguhindura uburyo bwo kuzunguruka kugirango ugenzure ingano yingano, kuramba bigera kuri 30%. Mu nganda zikoreshwa mu rugo, ibishishwa bishyushye bya SPHC bikoreshwa mu gukora inzu ya firigo ikonjesha. Igishushanyo cyimbitse cyerekana neza ko igipimo cyujuje uburinganire bugoramye burenze 98%. Mu 2024, ikoreshwa rya SPHC rishyushye rishyushye mu bikoresho byo mu rugo biziyongera 15% umwaka ushize kugera kuri toni miliyoni 3.2.
Nkicyuma cyubaka ibinyabiziga, SAPH340 igera kuburinganire hagati yimbaraga nubukomezi wongeyeho 0.15% -0,25% karubone na boron. Mugukora ibinyabiziga bishya byamashanyarazi, SAPH340 ibishishwa bishyushye birashobora kwihanganira imizigo irenga 500MPa kandi byujuje ibisabwa muburyo bwo gusudira. Muri 2023, igipimo cyibishishwa bishyushye byubwoko nkubu bikoreshwa mumodoka nshya yingufu zo murugo bigeze kuri 70% yibice byubatswe.

Icyitegererezo	Imbaraga Zitanga (MPa)	Kurambura (%)	Ikoreshwa risanzwe
Q235B	≥235	≥26	Inyubako zubaka, imashini rusange
Q345B	45345	≥21	Ikiraro, imiyoboro
SPHC	75275	≥30	Ibikoresho byo murugo, ibice byimodoka
Q960	60960	≥12	Imashini zubwubatsi, ibikoresho byo murwego rwohejuru