????? ??? ???????? ???????????

???????????? ????? ????????? ???????????????, ???????????? ???????????????. ???????????? ???????????????? ????? ?8, ?10, ?11,?12, ?13 ?????????? ????? ???????????? ???????????????? ????????? ????? ????????? ???????????????, ? ??????? ??? ????? ????????? ??? ???????????? ????????? ????????.

????? ?10, ?11, ?12, ?13 ????????? ??? ???????? ??????????? (?????, ???????, ??????, ??????, ?????????? ? ?. ?.). ??? ????????????????????? ??????????? ????????? ????? ?7 ? ?8.

????? ????? ???????????? ? ???????? ???????? ??????????? ?????? ??? ??????? ? ????? ?????????, ??? ??? ?? ??????? ????????? (?10-?12 - 62-63HRC) ?????? ????????? ??? ??????? ???? 190-200�?.

???????????? ????? ?????????? ???????????????, ?? ?????????? ??????????????? (11??, 13?, ????, 9??, ?, ?2?) ???????? ??? ??????? ?????????? ????????? ????????? (s?=500�600???) ? ????????? ????????? (?? 5-8?/???). ?? ?????????? ??? ???????????, ?? ????????????? ? ?????? ??????? ????? 200-250�?. ???????????? ????? ?? ????????? ? ????????????? ???????? ??????? ????????????????.

????? ? - 0.95-1% ?, 0.15-0.4% Mn, 0.15-0.35% Si, 1.3-1.65% Cr, 64-65HRC.

????????????? ????? (?6?5, ?12?3, ?8?3?6?, ?9, ?8?3, ?8?5) ? ??????? ?? ?????? ???????????????? ?????? ???????? ??????? ??????????????? ? ?????????????? ??????? ?????????, ????????? ? ??????????????? ??? ?????????? ????????????, ??????????? ? ??????? ?????? ??? ??????? ? ??????? ?????????.

???????? ??????????? ?????????? ???? ?????? ???????? ????????, ????????, ??????? ? ???????.

????? ?18 - 0.7-0.8% ?, 3.8-4.4% Cr, 17.5-19% W, 1-1.4% V, 0.5-1% Mo.

????? ??? ?????????????? ???????????

??? (12?1, ?) ???????? ??????? ??????????, ????????????????, ????????? ??????????? ???????? ? ?????? ?????????. ?? ????????? ?????????? 63-64HRC.

????????????? ?????, ?????, ??????? ? ?????? ??????? ? ??????? ??????????? ??????????? ?? ???????? ?????? 15, 15?.

�

????? ??? ??????? ????????? ??????????????

??? ????? (?12?1, ?12?, ?6??, 6?5?3???, 7??2??) ?????? ???????? ??????? ??????????, ???????????????? ? ??????????, ???????????? ? ??????????? ?????????, ????? ?????? ???? ?????????????.

?? ?????? ??????? ??? ???????????? ??????? ??? ????????? ?????????????? ?????????? ????????????? ?????.

????? 7??2?? - 0.68-0.76% ?, 1.5-1.8% Cr, 0.1-0.25% V, 59-60HRC.

�

????? ??? ??????? ???????? ??????????????

??? ????? (5???, 5???, 4?3???, 4?5?2??, 3?2?8?, 4?2?5??) ?????? ????? ??????? ???????????? ???????? (????????? ? ????????) ??? ?????????? ???????????? ? ???????? ????????????????, ????????????????? ? ????????????????? ? ??????? ????????????????.

???????????? ???????? ????? 5??? ??? ??????????? 500�?: s?=900???, s0.2=650???, d=20-22%, y=70%.

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??????? ??????

???????? ???????? ?????? (??3, ??6, ??10, ?30?4, ?15?6, ?5?12, ??7?12, ??8?6, ??20?9), ????????????? ??????? ?????????? ??????????? ? ????????? ?? ???????? ??????????? ???????? (WC, TiC, TaC), ??????????? ??????????? ???????.

????? ??8 ????????? ??? ????????? ??????? ? ?????? ????? ???????? ?????????, ? ????? ??? ?????????, ?????????? ????, ??????? ? ?????????.  ?????? ??10, ??15 ????????????? ??? ???????????? ???????????????????? ???????. ?????????????????? ?????? ????????? ??? ????????? (?30?4) ? ????????? (?15?6, ?5?10) ???????, ???????????? ? ????????? ?????, ????????? ??????? 92-87HRC.