Mitundu Ndi Mitundu Yazitsulo, Ndipo Magawo Anayi Akuluakulu Azitsulo Ndi Chiyani?

1,Ndi mitundu yanji yazitsulo

1. 40Cr, 42CrMo, etc.: Amatanthauza aloyi structural zitsulo, amene ali kwambiri mkulu-kutentha mphamvu ndi kukana kutopa, ndipo amagwiritsidwa ntchito popanga zigawo zikuluzikulu za makina aakulu zida.Chitsulo chapadziko lonse lapansi cha ASTM A3 ndi chitsulo chodziwika bwino cha ku America chopangidwa ndi mpweya, chomwe chimakhala ndi makina ocheperako ndipo chimagwiritsidwa ntchito popanga zida wamba.

2. Mitundu yayikulu yazitsulo imaphatikizapo zitsulo zapadera za carbon structural steel, carbon tool steel, carbon spring steel, alloy spring steel, alloy structural steel, alloy structural steel, alloy tool, alloy tool steel, high-speed tool zitsulo, zitsulo zosapanga dzimbiri. , zitsulo zosagwira kutentha, komanso ma alloys omwe ali ndi kutentha kwambiri, ma alloys olondola, ndi ma electrothermal alloys.

3. Mtengo wa E: 26 wa anthu onse okhala ndi a, 44 kwa omwe ali ndi b, ndi 24 kwa omwe ali ndi c.Utali uliwonse uli mu millimeters.Kukula kwachitsulo kumatanthawuza miyeso yofunikira kwambiri yamitundu yosiyanasiyana yazitsulo, kuphatikiza kutalika, m'lifupi, kutalika, m'mimba mwake, utali wozungulira, m'mimba mwake, m'mimba mwake, ndi makulidwe a khoma.

4. Chitsulo chimagawidwa m'magulu anayi: mbiri, mbale, zomangira, ndi mapaipi.Zida za mbiri ndi mbale zimatchulidwa kuti Q235B, Q345B, ndi Q355B, pomwe zida zazikulu zomangira ndi HRB400E, komanso zida zamapaipi zimakhalanso ndi Q235B.

Mitundu ya mbiriyi imaphatikizapo chitsulo chooneka ngati H, chitsulo chofanana ndi I, chitsulo chachitsulo, ndi zitsulo za ngodya.

5. Chitsulo chapadera: chimatanthawuza zitsulo zapadera zomwe zimagwiritsidwa ntchito m'magawo osiyanasiyana a mafakitale, monga zitsulo zamagalimoto, zitsulo zaulimi, zitsulo zoyendetsa ndege, zitsulo zopangira makina, zitsulo zopangira ng'anjo, zitsulo zamagetsi, waya wowotcherera, ndi zina zotero. specifications zosiyanasiyana welded chitoliro mankhwala ndi osiyana, kawirikawiri anasonyeza awiri mwadzina.

2, Momwe mungasiyanitsire mitundu ndi zitsanzo zachitsulo

1. Malingana ndi ntchito zosiyanasiyana ndi zofunikira, zitsulo zingathe kugawidwa mumitundu yosiyanasiyana ndi zitsanzo.Chitsulo cha kaboni chodziwika ndi mankhwala: Chitsulo chokhala ndi kaboni pakati pa 008% ndi 11%, chomwe chimagwiritsidwa ntchito kwambiri popanga zida zamakina, mawilo, mayendedwe, ndi zina zambiri.

2. Kufotokozera kwamagulu a njira yoyimira kalasi yachitsulo ku China: 1. Chitsulo cha carbon structural chimapangidwa ndi Q + nambala + chizindikiro cha khalidwe lapamwamba + chizindikiro cha njira ya deoxygenation.Chigawo chake chachitsulo chimakhala ndi "Q", chomwe chimayimira malo opangira zitsulo, ndipo manambala otsatirawa amaimira mtengo wamtengo wapatali, mu MPa.Mwachitsanzo, Q235 imayimira zokolola (σ s) 23 MPa carbon structural steel.

3. Chitsulo chimagawidwa m'mitundu inayi: mbiri, mbale, zomangira, ndi mapaipi.Mwa iwo, mbiri ndi mbale zitha kugawidwa mu Q235B, Q345B, ndi Q355B, pomwe zida zomangira ndi HRB400E ndi mapaipi ndi Q235B.Mitundu ya mbiriyo imatha kugawidwa muzitsulo zooneka ngati H, zitsulo zooneka ngati I, ndi zina zotero.

4. Chitsulo chopukutira;Kutaya chitsulo;Hot adagulung'undisa zitsulo;Chitsulo chozizira chokoka.Chitsulo chodziwika ndi mawonekedwe a metallographic mu annealed state: ① hypoeutectoid steel (ferrite+pearlite);② Eutectoid zitsulo (pearlite);③ Kugwa kwachitsulo kuchokera ku chitsulo cha eutectic (pearlite + simenti);④ Lainitic chitsulo (pearlite + simenti).

5. Chitsulo chozizira: mtundu wachitsulo wopangidwa ndi chitsulo chopindika chozizira kapena zitsulo.Mbiri yapamwamba: Chitsulo chapamwamba chozungulira, zitsulo zazikulu, zitsulo zosalala, zitsulo za hexagonal, etc. b.Mapepala achitsulo;Mbale yachitsulo yopyapyala: Mbale yachitsulo yokhuthala mamilimita 4 kapena kucheperapo.Zitsulo zapakatikati ndi zokhuthala: Ma mbale achitsulo okhala ndi makulidwe opitilira mamilimita 4.

6. Nambalayo imayimira mtengo wamtengo wapatali, mwachitsanzo, Q275 ikuyimira zokolola za 275Mpa.Ngati zilembo A, B, C, ndi D zalembedwa pambuyo pa kalasi, zimasonyeza kuti mlingo wa chitsulo ndi wosiyana, ndipo kuchuluka kwa S ndi P kumachepa motsatizana, pamene khalidwe lachitsulo likuwonjezeka motsatizana.