Ukwelashwa kokushisa okuku-inthanethi kokucisha nokushisa | ipayipi lensimbi ukucisha kanye nokushisa | round steel quenching futhi tempering

Ukushisa nokushisa iyinqubo yokwelapha yokushisa ebanzi yokucisha kanye nokushisa okuphezulu kokushisa. Izingxenye eziningi ezicishiwe neziqinile zisebenza ngaphansi komthwalo omkhulu oguquguqukayo. Bangaphansi kokungezwani, ukucindezelwa, ukugoba, ukukhwehlela noma ukugunda. Ezinye izindawo zibuye zibe nokungqubuzana, okudinga izinga elithile lokumelana nokugqokwa nokunye. Ngamafuphi, izingxenye zisebenza ngaphansi kokucindezeleka okuhlanganisiwe okuhlukahlukene. Izingxenye ezinjalo ngokuyinhloko ziyizingxenye zesakhiwo semishini ehlukahlukene kanye nezinqubo, njengemigodi, izinduku zokuxhuma, amabhawodi, amagiya, njll., ezivame ukusetshenziswa ezimbonini zokukhiqiza ezifana namathuluzi emishini, izimoto, nogandaganda. Ikakhulukazi ezingxenyeni ezinkulu ekwenziweni komshini osindayo, ukwelashwa kokucisha nokushisa kusetshenziswa kakhulu. Ngakho-ke, ukwelashwa kokucisha nokushisa kuthatha indawo ebaluleke kakhulu ekwelapheni ukushisa.

Ngokwezimo zokusebenza zezingxenye futhi ukuze kuqinisekiswe izidingo zokusebenza kwezingxenye, njengokunquma ukukhethwa kokwelashwa kokucisha nokushisa, into yokuqala okufanele icatshangelwe ngumbuzo wensimbi esetshenziselwa ukucisha nokushisa izingxenye. Ngokuvamile, amaphuzu alandelayo kufanele anakwe:

1. Ngokuphathelene nokusebenza kwenqubo, ngaphezu kokuqina okuhle nokuqina, into ebaluleke kakhulu ukuqina. Ngoba ukusebenza kwensimbi kunqunywa isakhiwo sensimbi, futhi isakhiwo sensimbi sihlobene ngokuqondile nokuqina kwayo. Ukuzijwayeza kufakazele ukuthi insimbi inezakhiwo zemishini ezibanzi kakhulu ngemuva kokuqina nokufutheka ngendlela efanele. Lapho ingxenye iqiniswe ngokuphelele, kungakhathaliseki ukuthi i-carbon steel noma i-alloy steel, kufanele ithonywe ubulukhuni obufanayo, futhi amandla ayo aqinile, amandla okukhiqiza kanye namandla okukhathala ngokuyisisekelo kuyafana.

2. Ngokuphathelene nezakhiwo zemishini, ngemva kokuba insimbi icishiwe futhi iyancipha, ukusebenza kufanele kukwazi ukuhlangabezana nezinkomba zokusebenza ezidingekayo izingxenye. Ngokwezidingo zokusebenza kwemishini yezingxenye eziningi ezicishiwe nezipholile, izinkomba zayo zokusebenza zingaphakathi kwebanga elilandelayo. Σb: 600-1200MPa. Σs : 320—800 MPa. . Σs/σb : 50-60% σ-1 : 380-620MPa. Δ : 10-20% ψ : 40-50%

Ukuqina kweBrinell 170—320HB