Chiyambi Chachidule cha Chitsulo Chosamva Kuvala

Pakati pa mitundu yambiri yazitsulo zotayira, zitsulo zosagwira ntchito ndizitsulo zomwe zimagwiritsidwa ntchito kwambiri. Kuvala zosagwira kuponyedwa zitsulo makamaka bwino avale kukana wazitsulo castingspowonjezera zinthu zosiyanasiyana za aloyi, monga manganese, chromium, carbon, etc., ku alloy. Nthawi yomweyo, kukana kuvala kwa ma castings osagwira zitsulo kumadaliranso njira yochizira kutentha yomwe imagwiritsidwa ntchito ndimazikondi kapangidwe kawo.

Malingana ndi mavalidwe osiyanasiyana, kuvala kwazitsulo kungathe kugawidwa kukhala kuvala kwa abrasive, kuvala zomatira, kutopa, kuvala kwa dzimbiri ndi kuvala kovutitsa. Zopangira zitsulo zosamva kuvala zimagwiritsidwa ntchito kwambiriminda ya mafakitalendi zovuta zogwirira ntchito komanso zofunikira zamakina apamwamba, monga migodi, zitsulo,kumanga, mphamvu, petrochemical, madzi conservancy,ulimindi mafakitale amayendedwe. Zopangira zitsulo zosamva kuvala zimagwiritsidwa ntchito kwambiri pakatundu wa abrasion ndi katundu wina wake, monga zida zogaya, zofukula, zophwanyira, mathirakitala, ndi zina zambiri.

M'makampani opangira zinthu, mitundu yomwe imagwiritsidwa ntchito kwambiri yachitsulo chosamva kuvala imaphatikizapo chitsulo chosamva manganese, chitsulo cha chromium chosamva kuvala, chitsulo chosamva kuvala cha alloy low-alloy cast ndi chitsulo chosamva kuvala cha kaboni. Ku RMC Foundry, chitsulo chosamva kuvala chitha kuponyedwa ndi njira zingapo zoponyera kuphatikizakuponya mchenga wobiriwira, kuponyera mchenga kwa utomoni, kuponyera nkhungu osaphika, kuponyera ndalama, kutaya thovu ndi kutaya.kuponya vacuum.

1) Chitsulo Chosamva Kuvala kwa Manganese
Malinga ndi zinthu zosiyanasiyana za manganese, chitsulo chosamva manganese choponyera chimagawidwa kukhala chitsulo chotsika cha manganese chosamva kuvala, chitsulo chapakatikati cha manganese chosamva kuvala komanso chitsulo chambiri cha manganese chosamva kuvala. Chitsulo cha manganese chosamva kuvala chimakhala cholimba kwambiri ndipo sichapafupi kuthyoka mukachigwiritsa ntchito. Panthawi imodzimodziyo, imakhala ndi ntchito yabwino kwambiri yowumitsa ntchito, kotero kuti chitsulo chosamva manganese ndi choyenera pa kuvala kwa abrasive.

Zomwe zimagwiritsidwa ntchito kwambiri pazitsulo za manganese zosagwira ntchito ndi: M13 (Hadfield Steel), Mn5, Mn6, Mn7, Mn8, Mn17 ZG120Mn7Mo1, ZG120Mn13, ZG120Mn13Cr2, J9119, J91130, J91130, J91130, J91134, J91139, J91139, etc.

2) Chitsulo cha Chrome chosamva kuvala
Chitsulo cha chromium chosamva kuvala choponyera chimasintha kulimba ndi kulimba kwachitsulo chonyezimira powonjezera kuchuluka koyenera kwa chromium kuchitsulo cha alloy. Kuchulukitsa zomwe zili mu chromium mu sing'anga kaboni chitsulo kumatha kupititsa patsogolo kuuma kwa chitsulo choponyedwa komanso kumapangitsanso kulimba kwachitsulo choponyedwa. Kuwonjezera pang'ono molybdenum kungathe kupititsa patsogolo kuuma kwa chitsulo choponyedwa. Njira yochizira kutentha yachitsulo cha chromium chosamva kuvala nthawi zambiri imakhala yozimitsa kutentha + kutentha kochepa. Tiyenera kukumbukira kuti pamene kaboni wachitsulo cha chromium chosamva chiwonjezeko chikuwonjezeka nthawi iliyonse, kuuma kwazitsulo kudzawonjezeka, koma kulimba kwake kudzachepa.

Zomwe zimagwiritsidwa ntchito nthawi zambiri zachitsulo cha chromium chosagwira ntchito poponya ndi: ZG30CrMo, ZG35CrMo, ZG40Cr, ZG40CrMo, ZG42CrMo, ZG50CrMo, ndi zina.

3) Kuvala-Kusamva Low-alloy Cast Steel
Chitsulo chochepa cha alloy chimatanthawuza chitsulo cha alloy chokhala ndi alloying element zosakwana 5%. Popeza kuuma ndi kulimba kwachitsulo chochepa cha alloy cast kungasinthidwe mumtundu waukulu, chitsulo chosamva kuvala chochepa cha alloy chimagwiritsidwa ntchito mochulukira. Posankha njira yopangira zitsulo ndi kutentha, m'pofunika kuganizira mozama mphamvu, mphamvu, mphamvu ndi kuvala kukana kwachitsulo chochepa cha alloy kuvala chosagwira ntchito kuti mukwaniritse zotsatira zabwino kwambiri. Zomwe zimagwiritsidwa ntchito pazitsulo zotsika zotayidwa za alloy zimaphatikizira molybdenum, chromium, manganese, faifi tambala, ndi silicon.

Zomwe zimagwiritsidwa ntchito nthawi zambiri zachitsulo chotsika cha aloyi chosamva kuvala ndi: ZG30Mn2Si, ZG30Mn2SiCr, ZG30CrMnSiMo, ZG30CrNiMo, ZG40CrNiMo, ndi zina.

4) Chitsulo cha Carbon Chosamva Kuvala
Kukaniza kuvala kwa zitsulo za kaboni kumapezeka makamaka pakuumitsa kwazitsulo zazitsulo. Pamene mpweya wa carbon ndi woposa 0.35%, kuuma kwapansi kumagwiritsidwa ntchito pamwamba pa chitsulo choponyera chitsulo. Pamene mpweya zili zosakwana 0,35%, ndi mpweya zitsulo castings akhoza carburized, nitrided kapena carbonitrided kusintha kuvala kukana.