Shin karfe 45 # yana buƙatar fushi?

Bukatar ƙarin tempering an ƙaddara ta halin da ake ciki. Idan za a iya sarrafa zafin zafin jiki na saura yayin kashewa, babu buƙatar ƙarin ƙarancin zafin jiki.

Tsarin da kaddarorin 45 # karfe bayan annealing, normalizing, quenching da tempering.

45 # karfe annealing: ferrite + pearlite;

45 # karfe normalizing: ferrite + pearlite;

45 # karfe quenching: martensite;

45# karfe tempering: tempered martensite (ƙananan zafin jiki tempering), tempered troostite (matsakaicin zafin jiki tempering), tempered sorbite (high zazzabi tempering).

Tsarin 45 # karfe bayan daidaitawa shine tsarin ferrite + pearlite, tsarin bayan quenching shine tsarin martensite, kuma tsarin bayan quenching + 400 ℃ zafin jiki shine tsarin troostite. Taurin aikin daidaitawa bai wuce HB200 ba, amma kayan yana da sauƙin sarrafa shi, wanda har yanzu shine babban tsarin aiwatarwa. Quenching +400 ℃ zafin zafin jiki yana da kyau sosai, sama da HB300.

Taurin karfe 45 # da aka kashe da zafin yana tsakanin HRC20 ~ HRC30;

Ƙarfe 45 # karfe yana tsakanin HRC55 ~ 58, kuma ƙimar zata iya kaiwa HRC62;

Yana ɗaukar kwanaki 15-20 don amfani da karfe 45 # don yana buƙatar maganin tsufa don daidaita aikin karfe.

Mafi girman taurin aikace-aikace shine HRC55 (madaidaicin quenching HRC58).

45# karfe ne high quality-carbon tsarin karfe tare da low tauri da sauki yankan aiki. Ana amfani da shi a cikin ƙira a matsayin samfuri, tukwici, jagororin jagora, da sauransu, amma ana buƙatar maganin zafi