(1) Musiyano mukuru uripo pakati pezvinhu zvesimbi zvinoshandiswa pazvikamu zvecheni kumba nekune dzimwe nyika uri mumaplate echeni emukati nekunze. Kushanda kweplate yecheni kunoda simba rakawanda rekusimba uye kuomarara. MuChina, 40Mn ne45Mn zvinowanzo shandiswa pakugadzira, uye 35 simbi haiwanzo shandiswa. Kuumbwa kwemakemikari emaplate esimbi e40Mn ne45Mn kwakafara kupfuura esimbi dzekunze dzeS35C neSAEl035, uye pane 1.5% kusvika 2.5% ukobvu hwe decarburization pamusoro. Nokudaro, plate yecheni inowanzo tambura nekutyoka mushure mekudzima uye tempering yakakwana.
Munguva yekuyedzwa kwekuomarara, kuomarara kwepamusoro peplate yecheni mushure mekudzima kunenge kwakaderera (pasi pe40HRC). Kana ukobvu hwakati hwepamusoro hukapera, kuomarara kunogona kusvika kupfuura 50HRC, izvo zvinokanganisa zvakanyanya mutoro wecheni.
(2) Vagadziri vekune dzimwe nyika vanowanzo shandisa S35C neSAEl035, uye vanoshandisa maovheni e carburizing emabhandi epamusoro-soro. Munguva yekurapa kupisa, mhepo inodzivirira inoshandiswa pakurapa carburizing. Pamusoro pezvo, kudzora kwakasimba kwemaitiro panzvimbo yacho kunoitwa, saka macheni eplate haawanzoitiki. Mushure mekudzima nekudzikamisa, kupwanyika kwebrittle kana kuomarara kwenzvimbo kunoitika.
Kuongorora kwesimbi kunoratidza kuti pane chimiro chakakura chemartensite chakaita setsono (inenge 15-30um) pamusoro peplate yecheni mushure mekudzima, nepo pakati payo paine chimiro chemartensite chakaita sestrip. Pasi pechimiro cheplate yecheni imwe chete, mutoro we tensile mushure mekudziya wakakura kupfuura wezvigadzirwa zvemumba. Munyika dzekunze, maplate ane ukobvu hwe 1.5mm anowanzo shandiswa uye simba re tensile rinodiwa i >18 kN, nepo macheni emumba anowanzo shandisa maplate ane ukobvu hwe 1.6-1.7mm uye simba re tensile rinodiwa i >17.8 kN.
(3) Nekuda kwekuvandudzwa kuri kuramba kuchiitwa kwezvinodiwa zvezvikamu zvecheni yemudhudhudhu, vagadziri vemuno nevekunze vanoramba vachivandudza simbi inoshandiswa pamapini, maoko nemaroller. Mutoro we tensile mudiki uye kunyanya kuramba kwecheni kwakabatana nesimbi. Mushure mekunge vagadziri vemuno nevekunze vasarudza 20CrMnTiH steel sechinhu chepini panzvimbo pe20CrMnMo, mutoro we tensile cheni wakawedzera ne13% kusvika 18%, uye vagadziri vekune dzimwe nyika vakashandisa SAE8620 steel sechinhu chepini ne sleeve. Izvi zvine chekuitawo neizvi. Maitiro akaratidza kuti chete nekuvandudza mukana wekupinda pakati pepini ne sleeve, kuvandudza maitiro ekupisa uye mafuta, kuramba kwe tensile cheni kunogona kuvandudzwa zvakanyanya.
(4) Muzvikamu zvecheni yemudhudhudhu, ndiro yemukati yekubatanidza neruoko, ndiro yekunze yekubatanidza nepini zvese zvakasungirirwa pamwe chete nekubatana kwekupinda, nepo pini neruoko zvichiri pakati penzvimbo. Kubatana pakati pezvikamu zvecheni kune simba guru pakudzivirira kupfeka uye mutoro mudiki wecheni. Zvichienderana nekushandiswa kwakasiyana uye kukuvara kwecheni, yakakamurwa kuita mazinga matatu: A, B naC. Kirasi A inoshandiswa pakutumira zvinhu zvinorema, zvinomhanya zvakanyanya uye zvakakosha; Kirasi B inoshandiswa pakutumira zvinhu zvakawanda; Kirasi C inoshandiswa pakushandura magiya zvakajairika. Nokudaro, zvinodiwa pakubatanidza pakati pezvikamu zvecheni zveKirasi A zvakanyanya kuoma.
Nguva yekutumira: Gunyana-08-2023