Structural Steel Heat Treatment Technology

Structural zitsulo workpiece mu Kutentha ndi kuzirala ndondomeko, chifukwa cha kusagwirizana kuzirala mlingo wa pamwamba wosanjikiza ndi gawo pachimake ndi nthawi kupanga kusiyana kutentha, zidzachititsa kuti voliyumu kukulitsa ndi chidule cha nkhawa osagwirizana kuti nkhawa kutentha. Mu matenthedwe nkhawa chifukwa cha kutentha m'munsimu padziko anayamba pachimake chigawo, ndi chidule ndi wamkulu kuposa kusiya pakati pachimake chigawo gawo mavuto, pamene mapeto a kuzirala, popeza pakati gawo la kuzirala komaliza buku contraction sangathe. momasuka kusiya pakati gawo la mavuto padziko mavuto. Izi ndi mchikakamizo cha kupsyinjika matenthedwe pamapeto pake workpiece pamwamba kuthamanga ndi mtima Utumiki mavuto. Chodabwitsa ichi ndi utakhazikika liwiro, zinthu zikuchokera ndi kutentha mankhwala ndi zinthu zina. Ikazizira, m'pamenenso imakhala yokwera kwambiri ya kaboni ndi aloyi, njira yoziziritsa yosagwirizana ndi mapindikidwe apulasitiki pansi pa kupsinjika kwamafuta komwe kumapangidwa ndi kuwonjezereka, mawonekedwe omaliza a kupsinjika kotsalira komwe amapeza.

 

Komano zitsulo pa kutentha mankhwala chifukwa cha kusintha kwa minofu mwachitsanzo austenite kuti martensite, limodzi ndi kuwonjezeka kwa voliyumu yeniyeni ya kukula kwa voliyumu ya workpiece, mbali zosiyanasiyana za workpiece ali ndi gawo kusintha, chifukwa cha kusagwirizana. kuchuluka kwa minofu yomwe yakula kupsinjika. Chotsatira chake ndi kupsinjika kwapang'onopang'ono kwapang'onopang'ono, kupsinjika kwa gawo la mtima, ndi kupsinjika kwamatenthedwe kosiyana ndendende. Kupanikizika mu kukula kwa workpiece ndi kuzizira kwa martensite kusintha zone factor, mawonekedwe, mankhwala zikuchokera zakuthupi.


Nthawi yotumiza: Apr-20-2023