1、 549092012( 683-15:1992) ISO 683-15:1992Heat-treatable steels, alloy steels and free-cutting steels Part 15: Valve steels forinternal combustion engines(MOD) 27 2002 . 184- , 1.02004 . 1 - . . ( . . ) , 42 375 3 1 2012 . 101-4 - 683-15:1992 , . 15. (ISO 683-15:1992 Heat-treatable steels, alloysteels
2、 and free-cutting steels Part 15: Valve steels for internal combustion engines) - , , , 1.52004 ( 4.2 4.3). - . , , , , , - / , . 10 - , , , , , , - / . - 1.52004 ( 3.5)5 , - . - () . , , 2012 , - - II 5490920121 12 13 24 25 .36 37 37.1 37.2 37.3 47.4 47.5 .47.6 .87.7 .88 88.1 .88.2 .88.3 98.4 98.5
3、98.6 .99 1010 1011 10 () .11 () - () 549092012, 563272 10090:1998 .17 () .18 () 18 () 10090 19 () , .20 () .23 25III 549092012 683-15 , :- ;- . 4 683-15 ;- ;- 10090.IV 549092012 Metal products from alloyed steel and alloys for valves of internal combustion engines. Specifications 201210011 1.1 - , -
4、 ():-;- ;- ;- .1.2 - , .1.3 1.2 : 538452010 ( 377:1997) . , - 25902006 . 558275 -, . 563272 -, . 594975 -, . 735077 -, . 756581 ( 377-289) , . 756694 . , , , 1024375 . 123442003 . 1 549092012( 683-15:1992) 123452001 ( 67182, 493589) . 1234678 ( 43982, 4829-186) . 1234777 . 1234878 ( 62982) . - 12350
5、78 . 1235281 . 1235481 . 1235578 . 1235681 . 1235784 . 123612002 . 1236379 . 1236484 . 1495577 . - 1774590 . 1814372 - -. 1889597 . 2505481 - . 2803389 . - - - , 1 , , . (), - () . , , - , , .3 :3.1 (): , - , , , , , , . - - .3.2 : .4 4.1 : , Si , Mn , , S , N , Cr ,Ni , Ti , Al , Nb , , u , Zr , ,
6、, W , V .4.2 :Rp0,2(c1150,2) 0,2 % , /2;Rm(c115) , /2;2 5490920125(c1005) , %. - L0=5,65 S0;Rp1,0; T; t , 1 % , /2, - t. , -.5 5.1 () ( 1).5.2 :- , ;- , .6 :- ;- (, );- / , -, (7.2.1, 3) (7.6);- : ();- ;- ();- (7.2);- , ( );- , 2.7 7.1 , - . NiCr 15 Fe 7 TiAl, NiFe 25 Cr 20 NbTi NiCr 20 TiAl . , .7.2 7.2.1 .1 , , - , 3.2 ( .1 .5, ).3 :- () ;- () ;3 549092012-;- ;- () , ;- .7.3 7.3.1 () -, 1 .1 ( ).7.3.2 , 1 .1, 2.7.3.3 -.7.3.4 , 1, 14 5632 .7.4 (201015c45c43) 3 .2 .3 ( ) , / , .1.4 .7.5 7.5.1 () . - .7.5.1.1 , ()-