Papiso ea mocheso o futhumatsang le mocheso oa sebōpi

Ha e bapisoa le ho futhumala seboping, ho futhumatsa ho futhumatsang ho na le melemo e latelang:

1) Nako ea ho futhumatsa e khuts’oane mme tlhahiso e phahameng. Lebelo la ho phahama ha mocheso oa mocheso o futhumatsang ke 4-20T / s, mocheso o phahame ka mocheso o mahareng le o phahameng ke 5-30Y / s, liner ea silinda e sebelisa matla a maqhubu a matla, likotoana tse 3 ka nako, le bohale Nako ea 220Y ke 30-40s.

2) Thepa e tsitsitseng le e betere e ka fumaneha.

Motho e mong o entse liteko ho ho thatafalloa ho kenya letsoho, Induction futhumatsang le tempering (IH), sebōpi futhumatsang le tempering (FH) tsa PC tšepe mekoallo. Mekhahlelo ea tekheniki ea litlhaloso tse peli tsa kalafo ea mocheso e bonts’itsoe tafoleng.

Mefuta e ‘meli ea mocheso kalafo ga tlhaloso entsprechen botekgeniki

Liphetho tse peli tsa liteko li bontša hore:

1) Mekhoeng e ‘meli ea ho futhumatsa, thatafalo ea sampole ea tšepe ea tšepe e fokotseha ka tatellano le keketseho ea mocheso o futhumatsang.

2) Bakeng sa ho fumana bothata bo tšoanang ba tempering, mocheso o futhumetseng oa IH o 100-130 ℃ e phahameng ho feta ea FH. Phapang ena e ka etsa liphoso tse bakiloeng ke nako e khuts’oane ea ho futhumatsa ea IH.

3) U sebelisa tlhahlobo ea X-ray ea phapang, likaroloana tse ngata tsa austenite tse bolokiloeng li lekantsoe ke ho futhumatsa ha maqhubu a phahameng le lisebelisoa tse futhumatsang sebōpi ka kakaretso e ne e le 4.3% le 3%, ka ho latellana, ‘me butle-butle ea fokotseha ka keketseho ea mocheso o futhumatsang; empa bakeng sa Mocheso o tšoanang oa tempering, litaba tse bolokiloeng tsa austenite tsa sampole ea IH li phahametse tsa FH. Ka mocheso oa 400 ° C, karoloana ea boima ba austenite e bolokiloeng ho FH e ka tlase ho 1%, ha ea khale e le 2.7%. Ha mocheso oa tempering o le tlase ho 600 ℃, karoloana e kholo ea austenite e bolokiloeng e ke ke ea ba tlase ho 1%. Phapang molemong oa ho futhumatsa ka lebaka la mekhoa e fapaneng ea ho futhumatsa le eona ke e ‘ngoe ea litšobotsi tsa ho halefa ka mokhoa o kenang.

4) Kamano lipakeng tsa mokhoa oa kalafo ea mocheso le thepa ea mochini. Bakeng sa ho bapisa litšobotsi tsa mochini oa mehlala ea IH le FH, kamano lipakeng tsa matla, polasetiki, ho thatafala le thatafalo e fumanoeng litekong tse fapaneng tsa mochini li ile tsa akaretsoa, ​​mme liphetho li latelang:

Matla a tensile, matla a lihlahisoa le matla a ho kuta kaofela a eketseha ka keketseho ea thatafalo (phapang lipakeng tsa IH le FH ha e kholo). Ho phaella moo, le haeba mekhoa ea khatello ea mojaro e fapane, karolelano ea matla a ho kuta le matla a tensile e fapana hoo e ka bang ka 0.6 ho ea ho 0.7, kahoo phapang ea mokhoa oa liphetoho tse fapaneng tsa matla le eona e nyane haholo.

Boemong bofe kapa bofe bo thata, polasetiki le boima ba sampole ea IH li phahame ho feta tsa sampole ea FH. Ho sebelisa IH ho eketsa karolelano ea polasetiki, bolelele kamora ho robeha ke 10%, phokotso ea sebaka ke 30%, ‘me tse ling li phahame ho 70%. Ka hona, ha e bapisoa le sampole ea FH, sampuli ea IH e na le lithollo le matla a matle le ho ba thata. Kamora mocheso o phahameng oa mocheso, sampole e na le li-austenite tse bolokiloeng, tse ka ntlafatsang polasetiki le ho thatafala ha tšepe. ; Ha li-hardness tse peli li tšoana, IH e futhumatsa ka potlako le ka nako e khuts’oane, kahoo mocheso oa eona o futhumetseng o phahame ho feta FH.

Ka bokhutšoanyane, ts’ebetso ea sampole e ts’oaroang ke IH e betere ho feta ea sampole ea FH. Hoa lokela ho hlokomeloa hore ka lebaka la nako e potlakileng le e khuts’oane ea mocheso o kenang, mocheso o futhumetseng o batla o phahame ho feta bohale ba seboping ka 100-130 ° C. Ha ho bapisoa le ho halefa ka seboping, ho itaola ho eketsa mocheso haholo.