Imiba emininzi efuna ukuqwalaselwa ukucima i-high-frequency yentsimbi yokuthwala?

1. Ubunzima be-Annealing: ubunzima kunye nesakhiwo seendawo ezifakwe kwi-anneal kufuneka zihlolwe ngaphambi kokuba unyango lobushushu. GCr15: 179-207HB (88-94HRB), abanye 179-217HB (88-97HRB). Ukuba ukuqina akufanelekile (kuphezulu kakhulu, kuphantsi kakhulu okanye kungalingani), izizathu kufuneka zihlalutywe ngokucophelela, ezinokuchaphazela ukucima (njengobunzima obunganelanga, i-decarburization, overheating, oval enkulu, njl.).

2. Ukucima kunye nokuqina kobunzima: xa ubukhulu bodonga abukho ngaphezu kwe-12mm, emva kokucima, ≥63HRC, emva kokushisa, i-60-65HRC; inokuhlangabezana neemfuno zobulukhuni obukhethekileyo bomthengi, njenge-61-64HRC, njl., kodwa uluhlu lokunyamezela ubunzima emva kokushisa Ubungakanani kufuneka bube ngaphantsi kwe-3HRC; ngexesha lokucima okuqhelekileyo, ixabiso lobulukhuni lixhomekeke ikakhulu kwiqondo lokushisa.

3. Ubulukhuni obufanayo: Umgangatho umisela ukuba ukufana kokuqina kwenxalenye efanayo ngokubanzi yi-1HRC; xa i-diameter yangaphandle inkulu kune-200mm, yi-2HRC xa ingekho ngaphezu kwe-400mm; xa ingaphezulu kwe-400mm, yi-3HRC.

Ukusebenza kobunzima obungenakufaneleka:

(1) Ubunzima obuphezulu: ukushisa okuphezulu kokucima okanye ixesha elide lokufudumeza, izinga lokupholisa ngokukhawuleza, amandla aphezulu ekhabhoni (i-carburization).

(2) Ubunzima obuphantsi: ukushisa okuphantsi kokucima okanye ixesha elifutshane lokufudumeza, izinga lokupholisa ngokukhawuleza, amandla aphantsi kwekhabhoni (nge-decarburization), kunye ne-decarburization yezinto.

(3) Ubunzima obungalinganiyo: ubushushu obuphantsi bokucima okanye ixesha elifutshane lokufudumeza, isantya esicothayo sokupholisa, i-decarburization yezinto, kunye nezithunzi zokunamathela.