Quenching da tempering na crankshafts
2020-01-16
Quenching tsari da manufa
The workpiece ne mai tsanani zuwa austenitizing zafin jiki na wani ɗan lokaci sa'an nan sanyaya a wani kudi mafi girma fiye da m sanyaya kudi don samun wani zafi magani tsari na martensite tsarin.
Don inganta high taurin da kuma sa juriya na workpiece
Tsarin zafin jiki mai ƙarancin zafi da manufa
Wani tsari na maganin zafi wanda aka kashe karfe a 250 ° C. sa'an nan kuma sanyaya.
Domin kula da high taurin da sa juriya na quenched workpiece, rage saura danniya da brittleness a lokacin quenching.
Yadda za a bambanta tsakanin crankshaft da aka kashe da wanda ba a kashe ba?
Iron yana amsa sinadarai tare da iskar oxygen a cikin iska a yanayin zafi mai zafi don samar da baƙin ƙarfe trioxide. Wannan ya bambanta da abin da muke kira tsatsa. Abin da muke yawan faɗa game da tsatsa shi ne baƙin ƙarfe yana amsawa da iskar oxygen, ruwa, da sauran abubuwa a cikin iska a yanayin zafi don samar da (babban bangaren tsatsa) baƙin ƙarfe oxide, ja.
Iron yana zafi a cikin oxygen:
3Fe + 2O2 === Dumama ==== Fe3O4
Karfe tsatsa a cikin iska:
crankshaft wanda ba a kashe ba
quenched crankshaft
