????? ????? ?????? ?????????? ??????? ???????.ZL108 (ZAlSi12Cu2Mg1) ?? ??????? ?????? ?? ????? ??????? ???????? ?????? ???? ????? ?????? ??????? ?????? ?????? ??????????? ?????? ?????. ??????? ?? ????? ???????????? ?????????? ?????????? ???? ?????????? ???? ????? ??????? ?????? ????????? ???????? ???????? ?? ?????? ??????? ?????? ???? ????? ?????? ?????? ?????????? ??????? ????? ?? ??????? ??????? ??? ???? ??????? ?????? ??? ???? ?????? ?? ????? ??????? ??????? ????????.

?????? ??????? ? ZL108 ?? ZAlSi12Cu2Mg1.

• ?????? ???????? ???????:: ????? ?? GB/T 1173? ??? ????? ??ZAlSi12Cu2Mg1. ???? ????? ??????? ???? ??????? ????????: ????????? (Si) ??????? (Cu) ??????????? (Mg).
• ??? ???????/???????:ZL108 ?? ????? ?????? ???? ???? ????????? ?? ???? ????? ???????? ????????.
• ????? ????????:: ???? ?????? ??????? ?????? T6 (?????? ???????? + ????? ??????? ????) ??????? ?????? ??? ???? ???? ????? ???? ?? ????? ??????? ???????.

???? ????? ????? ?????????? ZL108 ?? ????? ??????????

?????	???? ??????? (wt%)	????? ???????
????????? (Si)	11.0-13.0	??????? ?????? ????????.. ???? ?????? ??????? ??????? ??????? ????? ??????? ???? ????? ??? ????????? ?????? ??? ?????? ?? ???? ?????? ????????? (P).
?????? (??????)	1.0-2.0	????? ??????? ???????? ?? ????? ??????? ???????. ????? ????? ????? Al?Cu ??????? ??????? ???? ???? ?? ??? ?????? ????? ??????? ???????.
?????????? (Mg)	0.4-1.0	????? ??????? ????????. ??? ????? ??? Mg?Si? ????? ???? ?? ?????? ??? ?? ???? ????? ?????? ????? ??????? ???????.
???????? (Mn)	0.3-0.9	???? ?????? ??????? ????? ????? ?????? ??????? ????? ?? ?????? ?????? ?????? (Fe).
?????? (??)	0.3-0.9	????? ???? ?????? ???????. ????? ????? ?????? ?????? ??????? ?????? ?????? ????? ?? ????? ??????? ???????.
?????????? (Ti)	≤0.20	????? ??????
?????????? (Al)	?????	???? ???????.

???? ?????? ?????? ?????????? ???????????? ZL108 (????? ????????? ??? ?????? ???????? ???? T6)

?????? ??????	?????? ??????	??? ???? ????? ????????
???????	2.68 ??? 2.70 ??/?? ????	--
??? ???? ?? ???? ????? ?????? (Rm)	250-280 ???? ??????	????? ??? ????? ?????? ??????? ??????? ??????? ??????.
??? ???? ?? ????? ??????? ??????? (250 ???? ?????)	≥ 120 ???? ??????	???? ????? ????????????? ??? ??? ????? ?? ????? ??????? ??????? ???? ???? ?? ???? ????? ?????? ?? ??????.
????????? (?)	≤ 1.0%	?? ??????? ??????? ?????? ?? ??????? ???? ??????? ????? ????????.
????? ????? (HB)	100-130	????? ????????? ??? ?????? ?????? ??????.
????? ?????? ????? (20-200 ???? ?????)	18.5-20.0 × 10-?/°C	???? ????? ??????????? ??? ?? ???? ????? ??????????? ??????? ???? ???? ?? ????? ?????????? ??? ??? ??? ?????? ?? ???? ?????????.
?????? ??????	優	???? ?????? T6 ??? ???? ?????? ?? ???????? ?? ??????? ?? ?? ????????? ???? ?????.

?????? ????? ?????? ??????? ???????????
????? ????? ???? ZL108 ??? ?????? ?? ???????? ???????? ??????????:

1. ???? ???? ?? ?????? ???????:: ??? ?? ???? ??????? ???????? ???????? ???????? ??????? ??????? ??????? ???? ?????? ???? ????? ?? ??????? ???????? ???????. ??? ?????? ???? ?????????? ??????? ????????? (P) ?????? ???????? (P)?? ??? ????? ??????? ????????? ????? ????????? ?????????? ??? ????? ??????? ??????????? ?????? ??????? ??????? ?????.
2. ???? ???????? ???????? ????? (T6):
   • ?????? ??????? ?????:: ????? ????? ??? ???? ????? 505 ± 5 ???? ????? ?????? ???????? ?????? ??????? ??????? ??????? ???????.
   • ?? ???? ???????:: ????? ???? ?? ????? ????? ???? (200-220 ???? ????? ?????) ?????? ????? ????? ??????.??????? ?????? ?????? ????? ??????? ??????? ????? ???????.
3. ????? ???? ????????:: ????????? ?????? ??????? ?????????或???? ?????? ????????????? ??? ????? ???? ??????? ????? ????. ????? ???? ?????? ?? ???? ???????? ???????? ??????? ??????.

??????? ??????? ????????
?????????? ????? ???? ????????? ??? ??? ??????? ?? ???????? ???????:

• ??????? ?????? ??????:ZAlSi12Cu2Mg1 (GB/T 1173)
• ??????? ???????:A332.0 (ASTM? ???? ????)
• ????? ??????? ????????:EN AC-48000 (EN 1706)
• ??????? ????????:AC9A 或 AC9B (JIS)

????????? ZL108 ?? ????? ???????
????? ????????? ??????? ??????? ??? ???? ???? ???? ??????? ????????? ????? ?????? ???????? ??????? ???????? ???????:

1. ??????? (????????? ???????? ???????)
   • ????? ???? ??????:: ??????? ???????? ???????? ????????? ????? ??????? ??????? ?????? ??????? (?????????? ?? ????? ???????? ?? ????? ??????? ??????? ????????? ??????).
   • ????? ???? ??????? ????? ??????:: ??????? ??????? ??????? ??? ??????? ??????? ?????? ?????? ?????? ?????? ???????.
   • ??????? ??????? ?????? ??????:: ????? ???? ???? ??????? ???? ??????? ??????? ??????.
2. ??????? ?????? ???????? ??????? ???????
   • ????? ??????:: ??????? ??????? ???? ???????? ??????.
   • ????? ??????:: ???? ???? ???? ?????.
   • ????? ????? ???????(?? ??? ???? ?? ????????? ????? ??????).

??????? ????????? ?? ????? ?????????? ZL108

?1: ?? ?? ???? ????? ????? ?? ZL108?

• ???? ????????. ?????? ??????? ???? ????????? ??? ?????? ????? ??????????? ????????? ??????????????? ?? ??? ???? ?? ???????? ??? ???? ??? ????? ???? ?? ?????? ??????? ?? ???????. ??? ????? ??? ?? ?????????? ??????? ????????? (P) ?????? ???????? (P)(??? ???? ?????? ?? ???? ????? ????? ????? Cu-P) ?????? ????????? ??????? ??? ????? ZL108 ?????? ??????????? ????????.

?2: ????? ???? ??????? ZL108 ?????? ???????

• ??? ?? ????? ?????? ???? ??? ???? ???????? ????? ?????? ????? ?????? ???? ?????????? ???? ?? ??? ?? ????. ?????? ????????? ?? ?? ?? ????????? ?? ?? ?????? ??? ???????? ?????? ?????? ?? ?????? ??????? ???????? ??????? (???? ????? ??? ?????? ??????????? ???????)? ?? ????? ??????? ???????? ?? ????? ??????? ???????? ???? ????? ???? ???? ?? ????? ?????? ????????.

?3 ：?? ?? ???????? ??????? ???????? ?????? ZL108?

• ??????? ????? ??????? ?????? ?? ??? ????? ????? ZL108 ?????? ?? ????????? ???????:
  • ??????? ????????:: ????? ???? ?? ????? ?????????? ????? ??? ????? ?????? ??????? ?????? ?? ??? ??? ???? ???????? ???????????? ??????? ??????? ???????.
  • ???? ????????:: ?? ???? ??????? ?????? ??? ???? ?????? ?????? ?????? ?????? ????????.
  • ???????:: ???? ????? ?????? ???????? ??????.

?4: ??? ???? ?????? ZL108 ????? ?????? ??????? ??? ZL109 ?? ??????? ???? ?????????

• ZL108 (??? ???? ??????):????? ???? ?? ????????? (11-13%)(???????) ???????? ????? ?????? ??????? ????? ?????? ?????????? ???? ???????? ????? ?? ?????? ??????? ?????. ?????? ??????? ??????? ?? ?????? ???????????.
• ZL109 (??? ????????/??? ??? ????????) ???????? ????????:: ????? ??????? ??? ?????? (8-11%)? ???? ?? ????? ?????? ???? ??????? ?????? ????? ????????? ???? ???? ??? (???? ???????)? ?? ???? ?????? ?????? ????????? ??? ???? ????.????? ?????? ??????? ??????? ?????? ??? ?????? ?? ZL108.

?5: ?? ?? ????????? ?????? ??????? ????? ZL108?

• ????????? ????? ?? ????? ????????? ?????? ?? ??? ????? ???????? ?????? ????? ???? “????? ?????????? ???? ?????”。
  • ???????:: ??? ?????????????? ????? ?????? ??????? ??????????? (PCD)?? ????? ????? ????? ????? ??????.
  • ????????:: ??? ??????? ????? ??? ????? ?????? ?????.
  • ?????:: ??????? ??????? ?? ?????? ?????? ?????? ?? ??? ??????? ?????? ??? ???????? ???????.