(A)?????????????

1
???????????
????????
2
(4)??????? ????????,????????????????????,?????
???????????,??????????,?????????????????????????,?
??????????
3
(A)?????????????
???? ?? ???? ??
4
(B)??????????????? ??????????????,????,?
???? ????????????,????,???????
?????????????,????
5
(C)??????????????????
6
2. ??????(1)??????????

• ?????????HRC60???
• ???????????????,????????????
• ????????????,???????
• ???????????????
• ??????????????????

7
(2)?????? (A)?????? (a)??????
???0.71.3,??HRC6165,???200250?,??0.10.2m
/s??????????,?????????????,???????????????T10A?T1
2A? (b)?????? ????????????(Cr)??(W)??(Mn)??(S
i)?????,?????????????????? HRC6165,???300350?,
??0.250.3m/s????????????????????????????????????
???,??????????????CrWMn?9SiCr?? (c)????
?????????(??)?,?????(Cr)??(W)? ?(V)??(Mo)?????????
????????HRC6367,???500? 600?,??????40m/min ?
8
???????????????,??????,?????,????????????????? ???
??,??????????????????,?????W18Cr4V?W6Mo5Cr4V2??
(d)????? ??????????????????(WC)????(TiC)????
?????,??(Co)??(Ni)??(Mo)????,???????????????HRC74
82,?????8001000?,????100300m/min,?????410?,?
??????????.??????????????,?????????,??????????????
,????????????????GB2075-87,????????P?M?K???????
? P?????(??)??????????YT,?WCTiCCo
????????TiC,????????K???????,?????Co???,????,?????
???????,????????????P01?P10?P20?P30?P40?P50??????
,TiC?????,?????????,????????????TiC????(?P01),????
???TiC????(?P50)?
9

• ? M?????(??)?????????YW,?TiCTaC(NbC)????????????
  ??????????????????,??????????????????,???????????
  ???????????????M10?M20?M30?M40?,????,??????????,?
  ????M10,??????M20,?????M30?
• ? K?????(??)?????????YG,?WCCo???????,??????,???
  ??,???????????????????????,????????????????????K0
  1?K10?K20?K30?K40?,????,Co????,????????????????K01
  ??????K10?K20 ?????K30?K40?
• (e)?????? ????????????????????,??????(512µm)???
  ?????????????(TiC?TiN?AL2O3?)?????????????????????
  ???13?,????????????????????210???????????????CN?
  CA?YB??
• TiC???????,57µm?
• TiN???????,812µm?

10
(B)?????? (a)????????AL2O3??AL2O3????????
??????,??????????????????????????,??9195HRA,???1
200?,????100400m/min,?????750m/min,???????????1
4?????????,????,??????,??????,???????????????????
??????????????????? (b)????????(PCD)?????????????
?????????,????(HV5000)??,?????(10000HV),?????,????
???????????????,??????????????????????????,??????
?1/4??????,700800?,??????????????????,????????,
???????????????,???????????????????????????
11
(c)??????(CBN)???????????????????,???70008000HV
,????,????1200?,?12001300?????????????,??????????
?????????????????????????
12
??????????????????
???? ???? ??? ??? ?? ??? ???? ?????? ??? ??????? ???
??? ??? v v v v v v v
???? P? v v
???? M? v v v v v v
???? K? v v v v v v
?????? ?????? v v v v
???? ?? v v v v
???? ??? v v
???? ????? v v v
13
????????,???????????????,????????K01,K10,K20,
P01,P10,P20,P30,W18Cr4V,W6M05Cr4V2? ?????(
) ?????( ) ?????(
) ??????????( ) ???????(
) ??????( ) ????????????(
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