Mu kutentha mankhwala forging, chifukwa cha mphamvu yaikulu ya Kutentha ng'anjo ndi yaitali kutchinjiriza nthawi, mphamvu mowa ndi yaikulu mu ndondomeko yonse, mu nthawi yaitali, mmene kupulumutsa mphamvu mu kutentha mankhwala forging wakhala vuto lovuta.

Otchedwa "ziro kutchinjiriza" quenching, ndi kuloza kwa Kutentha forging, pamwamba ndi pachimake kufika quenching Kutentha kutentha, palibe kutchinjiriza, nthawi yomweyo quenching yozizira process.According ndi chiphunzitso chikhalidwe austenitic, ndi forging ayenera kukhala ndi nthawi yaitali kutchinjiriza mu Kutentha ndondomeko, kuti amalize nucleation ndi kukula kwa austenisoalism ndi mbewu za disenisoal ndi kutsitsimuka kwa mbewu ya austenisotic. wa austenitic.The panopa quenching ndi Kutentha luso la forgings amapangidwa motsogozedwa ndi chiphunzitso ichi.Poyerekeza ndi ndondomeko quenching panopa, "zero kutentha kuteteza" quenching amapulumutsa nthawi ya kuteteza kutentha chofunika ndi homogenization wa dongosolo austenitic, osati akhoza kupulumutsa 20% -30% ya mphamvu, kuthetsa- 30 % mphamvu, kuthetseratu- 30 % mphamvu, kuchepetsa kupanga-302% mphamvu, komanso kuchepetsa kupanga-302%. makutidwe ndi okosijeni, decarbonization, mapindikidwe ndi zina zotero, zomwe zimathandizira kuwongolera kwazinthu.

Pamene zitsulo za carbon ndi otsika aloyi zitsulo zimatenthedwa kwa Ac1 kapena Ac2, ndondomeko ya homogenization ya austenite ndi kusungunuka kwa carbides mu pearlite ndi mofulumira. Pamene kukula kwachitsulo kumakhala kwa gawo lochepa thupi, kuwerengera kwa nthawi yotentha sikuyenera kuganizira za kutentha kwa kutentha, ndiko kuti, kukwaniritsa ziro kutentha kwapakati kapena makulidwe a zitsulo, mwachitsanzo, palibe chitsulo chozimitsa 5. 100mm, Kutentha mu ng'anjo ya mpweya, kutentha kwa pamwamba ndi pachimake pafupifupi kufika pa nthawi yomweyo, kotero nthawi yake yunifolomu akhoza kunyalanyazidwa, poyerekeza ndi chikhalidwe kupanga ndondomeko (r = aD) ndi coefficient Kutentha lalikulu, akhoza kuchepetsedwa ndi pafupifupi 20% -25% quenching Kutentha nthawi.

The ongowona kusanthula ndi zotsatira experimental zikusonyeza kuti ndi zotheka kutengera "zero kutchinjiriza" quenching ndi normalizing Kutentha structural zitsulo makamaka, 45, 45 mn2 mpweya structural chitsulo kapena single element aloyi structural zitsulo, ntchito "zero kutchinjiriza" ndondomeko akhoza kuonetsetsa makina katundu zofunika; "zero kutchinjiriza" Kutentha kuposa Kutentha kwachikhalidwe kumatha kupulumutsa nthawi yotentha pafupifupi 50%, kupulumutsa mphamvu kwa 10% -15%, kumapangitsa kuti 20% -30% igwire bwino ntchito, nthawi yomweyo "zero kutchinjiriza" kuzimitsa kumathandizira kuyeretsa tirigu, kuwongolera mphamvu.

(Kuchokera: 168 forgings net)