ASTM A1045 Structural Steel Pipeinowanzoshanda kune zvinhu zvesimbi isina musono pombi.Seamless simbi pombi yakakamurwa GB8162 uye GB8163, ari maviri anowanzoshandiswa mitemo muChina.Nekudaro, ASTM A1045Structural Steel Pipeine GB8162 chete, inova chinhu chinowanzo shandiswa kugadzira.
ASTM A1045 simbi pombi inowanzoshandiswa svikiro kabhoni quenched uye hasha simbi pombi ine yakanaka comprehensive michina zvinhu, yakaderera kuomarara uye nyore kutsemuka panguva quenching mvura.Zvikamu zvidiki zvinofanirwa kudzimwa nekudzikamiswa, uye zvikamu zvakakura zvinofanirwa kuve zvakajairika, zvinonyanya kushandiswa kugadzira yakakwira simba rinofamba, senge turbine impeller uye compressor piston.Shaft, giya, rack, worm, nezvimwe.
ASTM1045 kabhoni simbi pombiine inenge 0.45% kabhoni, shoma shoma yemanganese, silicon, nezvimwewo, uye yakaderera sarufa uye phosphorus yemhando yepamusoro kabhoni structural simbi pombi.
Kupisa kupisa tembiricha: normalizing 850, quenching 840, tempering 600. ASTM1045 simbi imhando yepamusoro kabhoni structural simbi ine yakaderera kuoma uye nyore kucheka.Iyo mold inowanzoshandiswa sematemplate, mapini, mbiru dzekutungamira, nezvimwe, asi inofanira kunge ichipisa.1. ASTM1045 simbi inokodzera kana kuoma kwayo kwakakura kupfuura HRC55 (kusvika kuHRC62) mushure mekudzima uye kusati kwapisa.Hukukutu hwepamusoro-soro mukushandisa iHRC55 (high-frequency quenching HRC58).2. Iyo yekupisa yekurapa maitiro e carburizing uye kudzima haizoshandisirwe ASTM1045 simbi.Zvikamu zvinodzimwa uye zvinopisa zvine hunyanzvi hwakakwana hwemakina uye hunoshandiswa zvakanyanya munzvimbo dzakasiyana siyana dzakakosha, kunyanya dziya dzekubatanidza tsvimbo, mabhaudhi, magiya uye shafts anoshanda pasi pemitoro inochinjana.Zvisinei, kuoma kwepamusoro kwakadzikira uye hakubatike kupfeka.Kuoma kwepamusoro kwezvikamu kunogona kuvandudzwa nekudzima uye kudziya + pamusoro pekudzima.Carburizing kurapwa inowanzo shandiswa kune zvinorema mutoro zvikamu zvine pamusoro abrasion kuramba uye musimboti mhedzisiro kuramba, uye kuramba kwayo abrasion kwakakwira kupfuura iyo yekudzima uye kudziya + pamusoro pekudzima.Yayo pamusoro pekabhoni yemukati ndeye 0.8-1.2%, uye musimboti wayo kazhinji 0.1-0.25% (0.35% mune dzakakosha kesi).Mushure mekupisa kupisa, iyo yepamusoro inogona kuwana yakanyanya kuomarara (HRC58-62), uye iyo yepakati ine yakaderera kuomarara uye kukanganisa kupikisa.Kana ASTM1045 simbi yakashandiswa kuvharisa, yakaoma uye brittle martensite ichaonekwa mukati mepakati mushure mekudzima, ichirasikirwa nemabhenefiti ekurapa carburizing.Parizvino, iyo kabhoni yemukati yezvinhu zvinotora carburizing process haina kukwirira, uye iyo yakakosha simba inogona kusvika yakakwira zvakanyanya ne0.30%, iyo isingawanzo mukushandisa.0.35% havasati vamboona chero mienzaniso, uye vakangoiunza mumabhuku ekuverenga.Maitiro ekudzima uye kupisa + yakakwira-frequency yekudzima kwepamusoro inogona kushandiswa, uye iyo yekupfeka kuramba yakashata zvishoma kupfuura iyo yekuvharisa.Iyo yakakurudzirwa kupisa kupisa system ye45 simbi inotsanangurwa muGB/T699-1999 standard i850 ℃ normalizing, 840 ℃ quenching uye 600 ℃ tempering.Zvivakwa zvakawanikwa ndezvekuti simba regoho iri ≥ 355MPa.Kusimba kwesimbi ye45 simbi inotsanangurwa muGB/T699-1999 standard i600MPa, simba regoho i355MPa, kurebesa kuri 16%, kudzikiswa kwenzvimbo i40%, uye simba rekuita i39J.
Nguva yekutumira: Sep-24-2022