?????? ????? ?????? (JIS)????? ?????????? ??????????? ????? ????????? ???????? ??????? ?? ?????????????????? ?????????? ??ADC8 ?? ??????????? ????? ?????? ?????? ?????? ??????? ???? ?????? ??????? ???? ??????.?????? ???. ??????? ?????? ???????????? (Mg) ???????? ???? ??????? ???????? ??????? ?????? ?? ????? ????????? (Si) ??????? (Cu) ???????? ????????? ????? ???? ????? ????????? ???????? ?? ????? ?????????? ???????? ?? ?????? ??? ??????? ??????????? ?????? ??????? ??? ???? ????? ?? ???????????? ????? ??? ??????? ????? ?? ??????? ??????? ??????? ??????? ?????? ?????? ????? ??????.???? ???? ?????? ??????? ????? ????????? ???????? ????????? ???????? ???????????? ???????? ?????? ?????? ?? ???????? ??? ?????? ????????? ???????.

?????? ?????? ADC8

• ??????? ???????? JIS:: ????? ??????? ??????? ???????? JIS H 5302? ??? ??????? ?? ADC8???? “ADC” ??? “?? ?????????? ???????”. ???? “ADC” ??? "???????? ???? ???????" ?"8" ?? ??? ??????? ?? ??????? ??? ??????? ???????? ???????.
• ??????? ????????:???????? ????? (3.0-5.01 TP3T) ???? ????? ???? ??????? ????? ?????? ????? ??????;????? ????? ???? ?? ????????? (≤0.5%) ???? ??????? ????? ??????? ???? ????;????? ????? ??? ?????? (≤0.2%)? ??????? (≤1.0%) ???????? ?????????? ???? ???????? ??????? ?????? ?? ??????? ???? ???????? ??????? ?????? ?? ??????? ??????? ?????? ??????? ??????;???? ???????? ???????????? ????? ????? ???? ??? ?????? T5 ?? T6? ?? ?????? ??? ????????? ???????.

???? ?????? ????? ?????????? ADC8 (????? ??? ????????? ????????? JIS H 5302)

?????	???? ??????? (wt%)	????? ???????
?????????? (Mg)	3.0-5.0	?????? ???????. ???? ??????? ????? ?????? ?????? ???? ????? ????? ???? ?????? ??????? ???????? ??????? ??????.
????????? (Si)	≤ 0.5	????? ?????? ??????. ???? ??????? ??????? ???? ?? ????????? ??????? ????? ??????? ???? ??????.
?????? (??????)	≤ 0.2	????? ?????? ??????. ???? ??????? ??????? ?? ?????? ?????? ?????? ?????? ????????.
?????? (Fe)	≤ 1.0	???? ?????? ?????? ????? ?? ??????? ???? ??? ?????? ??? ???? ????? ??????? ??????? ??????.
???????? (Mn)	≤ 0.3	???? ??? ????????? ?????? ?????? ????? ?????? ??????.
????? (Zn)	≤ 0.5	????? ???????.
?????????? (Ti)	0.1-0.2 (???? ???????)	????? ??????
?????????? (Al)	?????	?????? ????? ??????.

???? ?????? ?????? ?????????? ???????????? ADC8 (???? ?????? ???????? ????? ?????????)

?????? ??????	?????? ?????? (???? ?????? ??????? - F)	????? ????? (????? ADC6)	???? ????? ????????
???????	2.64 - 2.67 ??/?? ????	??? ???? ADC6	-
??? ???? (Rm)	180-240 ???? ??????	??? ????? ?? ADC6	????? ?????? ??? ???????? ???????? ????????? ??? ???? ???????.
??? ?????? (Rp0.2)	80-120 ???? ??????	???? ADC6	???? ?????? ?????? ????? ?????? ???????? ?????.
????????? (?)	8.0-15.0%	???? ????? ?? ADC6	???? ????? ????????:: ???? ??????? ?????? ?????? ?? ????? ?????????? ???????.
????? ????? (HB)	45-55	???? ADC6	????? ???? ??????? ???? ????? ???????? ?????.
?????? ??????	?????	????? ? ADC6	???? ????? ????????:: ???????? ???? ????? ?????? ????? ????? ????? ??????? ??????? ?? ?????? ?????.
?????? ??????	??????	????? ? ADC6	???? ????? ????????:: ????? ????? ?????? ?? ????????? ???? ????? ?????? ????? ?????? ???????.
????? ???????	?????	???? ?? ADC6	???? ???? ??? ?????? ???? ???????? ??????? ???? ???????.
???? ????	?????	????? ? ADC6	????? ????????? ????? ?????? ???????? ???? ???? ??? ????? ????????? ???????.

???? ????? ???? ADC8 ???????? ???????

?? ????? ADC8 ?????? “??????? ?????? ??????? ?????? ??????? ?????”：

1. ??????? ????? ?????? ???????? ?????: ????? ????????? ≤0.5% ?? ??????? ?????? ??? ??????? ????? ?? ADC8. ????? ????????? ?????? ????????? ?????? ?? ????? ??????????? ??? ?? ???? ?? ????????? ???? ????? ?????? ADC8 ??? ????????? ??? ????? ????? ??????? ??? ???????????? ??? ??? 8-15% 8-15%???? ????? ?? ???? ????? ????? ?????????? ???????? ??????? ?? ??? ??????? ??? ?????? ???? ??? ???????? ??????? ?????? ??????? ????????? ???????.
2. ???? ?????????? ?????? ?????? ?????? ???? ???????:: ????? ?????????? ?? 3.0-5.01 TP3T? ??? ???? ????? ??????? ????? ?? ????? ???? ????? ????? ????? ???????.????? ?????? ?????? ???? ?????. ???? ????? ?????????? ???????? ????? ?????????? ADC8 ??????? ??? ????? ????? ?? ?????? ??? ??? ????? (180-240 ???? ??????) ?????? ??????? ???????? ????????.
3. ????? ????? ??? ????????? ????? ??????????? ?????? ??????? ?????? ≤ 0.2% ??????? ≤ 1.0% ?? ????? ???????? ???????? ?????? ??? ???? ??????? ??? ??????????? ?????? ??????? ??????? ??????????? ????? ADC8 ?? ?????? ????? ?? ?? ??????? ???????????.
4. ???? ???? ?????:: ????? ????? ?????? ?? ????????? ??????? ???????? ????? ?????? ??? ?????? ?????? ?? ?????????? ??????? ????? ?????? ????? ????????? ??? ?????? ???? ??????? ???????? ??????? ???? ????? ??? ?????? ????????. ????? ????? ?? ?????? ?? ??????? ???????? ???????? ??? ??????.
5. ???? ?? ???? ???????? ???????? ?? ???:: ???? ??????? ADC8 ?????????????? ???????? T5 (????? ???????) ?? T6 (????? + ?????)????? ????? ?????. ??????? ?????????: ???????? ???????? 400-450 ???? ?????? ???????? 150-200 ???? ?????. ???? ????? ??? ???? ??? 220-280 ???? ?????? ??? ???????? ????????? ???? ????????? ????? ??? 5-10%.

ADC8??????? ??????? ????????

????? ADC8 ????? ???? ???? ???????? ????? ?? ?????????? ??????????? ????? ?????????:

???????	???????	??????
JIS ???????	ADC8	-
ASTM? ???????? ??????? ?????????	A518.0 (???? Al-Mg)	???? ?????? ???? ?? ???? ????? ?????????? ????????
????? GB	YL302 (YZAlMg5) ????? ???? ??????	?????? ????? ?? ADC8
??????? ???????? EN	EN AC-51400 (AlMg5)	??????? ?? ???????
??????? ??????? ?????? ????????	?????5	???? ???????

????? ADC8 ?? ????? ???? ???????

???????? ?????????? ?????? ??????? ?????? ??????? ??????? ???? ????????????? ???????? ??????? ?? ADC8 ???? ????? ?? ???????? ???????:

1. ?????? ????? ???????? (????????? ????????)
   • ????? ??????? ???????:: ????? ??????? ????????? ??????? ????? ??????? ???????? ???????? ??????? ???????.
   • ?????? ????? ???????:: ???? ??????? ?????? ???????? ?????? ???????? ?????? ??????? (?????? ??????? ???? ???????).
   • ????? ?????? ???????:: ???? ???? ???? ???????? ????? ??????.
2. ????? ?????? ????? ????????
   • ????? ??????:: ?????? ???????? ????????? ?????? ??????? ??????? ???? ??????? ?????? ??????? ????????.
   • ??????? ????????:: ??????? ???????? ?????? ??????? ?????? ???????? ????????.
3. ????? ???????????? ??????????
   • ??????? ???????:: ??? ????? ??????? ?????? ??????? ???????? ???????? ???????? ??????? ??????.
   • ????? ?????????:: ???? ???? ?????? ??????? ????? ????? (????? ??? ?????? ????? ??? ??????).
4. ??????? ??????? ????????
   • ???????? ???????:: ????? ????? ????????? ?????? ????? ???? ?????? ???????? ??????? (???????? ??????? ????? ??????? ????? ???????).
5. ??????? ??????
   • ??????? ????????:: ????? ??????? ???????? ?????? ??????? ?????? (????? ????? ??? ????? ??? ???? ???????).

??????? ????????? ?? ????? ?????????? ADC8

?1: ?? ????? ??????? ??? ADC8 ?ADC6? ??? ????? ??????

• ???? ???????? ????????:
  • ADC8:: ????? ?????????? 3.0-5.0%? ????????? ≤ 0.5%.??????? ???? (8-15%)? ?????? ????? ?????? ???? ???????.???? ?????? ??? ??????.
  • ADC6:: ????? ?????????? 2.5-4.01 ???????? ????? ???????? ?? ????? ???????? (0.4-0.61 ???????? ????? ????????).??? ???? ?????? ??????? ???? ?????? ???????????? ????????? (6-12%) ??? ?????? ?? ADC8.
• ????????:???? ??????? ??????? ???????選ADC8；??? ??????? ??????? ??????選ADC6.

?2: ????? ????? ADC8 ???? ????????? ????????

• ????? ?????
  1. ????? ????? ???? ?? ????????? (≤0.5%):: ???? ??? ??????? ?????? ?????? ????????? ?????.
  2. ????? ??? ???? ??????????:: ??? ????? ?????????? ?? ?????? ?????????? ???? ??? ??????? ??? ???? ??????? ????? ????? ???????? ???? ????? ????? ???.
  3. ????? ????? ??? ???????:: ???? ?????? ?????? ??????? ?? ????? ?????? ??? ??????? ??????.

?3: ?? ?? ???? ???? ?? ADC8? ?? ???? ??? ???????? ???? ??? ????????

• ??????? ???????. ???? ????? ????????? ≤0.5% ???? ???????? ??? ????? ?? ????? ????????? ??????? (??? ADC12). ??? ???? ????? ??? ????? ???? ????:
  • ?? ?????? ??? ??????? ???? ????? ?????? ???? ????? ???? (???? ????? ????? 680-720 ???? ?????) ????? ????? ?????? (200-250 ???? ?????).
  • ???? ??????? ????? ??????? ???? ???? (???? ?????? ?????? ?? ???? ?????? ≥ 2.5 ??).
  • ????? ????? ?????? ???? ???? ????????.
  • ?????? ????????? ?????? ???? ?????? ??? ??????? ??????? ??????.

?4: ?? ?? ??????? ????? ?????? ? ADC8?

• ?????? ???? ??????? ????? ???? ????????? ???? ??????:
  • ?????? ???? ??????? (TIG/MIG):: ?????? ??? ???? ?????? (???? Al-Mg? ??? ???? ?????? 5356)? ???? ????? ??? ?????? ?????? ???? ???????.
  • ?????? ?????? ?????????:: ?????? ??????? ??????? ?? ????? ????? ?? ?????? ??????.
  • ?????? ???????:: ????? ?????? ?? ????? ????? ?????? ????????.
  • ?? ??? ????? ????? ??????? ??? ??????? ???????? ?????? ??? ??????? ???? ????? ?? ???? ???? ?????? ?????.

?5: ?? ???? ?????? ADC8 ????????? ?? ?? ????????

• ???????? ????? ????? ADC8 ?? ???? ???????? ????????:
  • ????? ???? T5:: 150-200 ???? ????? × 4-8 ?????? ???? ?? ???? ????? 10-20%? ?????????? ?? ???? ????? ??? 8-12%.
  • ??????? ????? T6 + ???????:: ??????? ????? ??? ???? ????? 400-450 ???? ?????? ???????? ??????? ?????? ???????. ???? ?????? ??? ??? ???? (220-280 ???? ??????) ?? ????? ????????? ??? 5-10%.
  • ???? ????? ????? ?????????? ??? ???????? ???????? ???????? ??? ????? ?????????? ??? ???????? ???????? ??????? ??? ???? ????? ??????? ????????.

?6: ?? ??? ?????? ADC8 ??????? ?? ????? ??? ?????? ??????

• ?????. ???? ??????? ?????? ?? ?????????? ?????? ???? ????? ????? ??????? ??? ??? ?????? ??????????.?????? ?????? ????? ????? ??????? ??????? ?? ?????? ?????.?? ???? ???????? ?? ???? ????? ?????? ????? ??????. ?? ???? ???????? ?? ???? ????? ?? ?????? ????? ??????. ??? ???? ??????? ???????? ??????? ??????? ???? ????? ????? ?????? ?????? ??? ???? ????? ????? ??????? ???? ????? ?????? ???? ??? ?????? ?? ??? ???????? ?? ??????? ????? ?????????.

?7: ?? ???? ??????? ADC8 ?????? ??????? ??????? ?????? ????????

• ????? ??????ADC8 ????? ?? ????? ???????? ?????? ???????.????? ?? ???? ??????? ?????? ?????????? ?? ????????? ??????? ?????? ?????? ????? ??? ?????? ????? ????? ?? ???? ??????? ??? ???? ??? ??? ??? ?????? ?????? ??????? ??????? ???????? ???????? ???????? ????????.

---

?? ?????? ??????: ????? ????? ??? ADC8 ?ADC6 ?ADC5

???? ????????	ADC8 (Al-Mg ???? ???????)	ADC6 (Al-Mg-Mn)	ADC5 (?????????? ???? ??????????)
????????? (Si) %	≤0.5	≤0.8	≤0.5
?????????? (Mg) %	3.0-5.0	2.5-4.0	4.0-8.5
???????? (Mn) %	≤0.3	0.4-0.6	≤0.3
??? ????	180-240 ???? ??????	200-260 ???? ??????	180-240 ???? ??????
?????????	8.0-15.0%	6.0-12.0%	5.0-12.0%
??? ??????	80-120 ???? ??????	110-150 ???? ??????	90-130 ???? ??????
????? ???????	?????	?????	??????
?????? ??????	?????	????? (?????? ?????? ????????)	?????
?????? ??????	??????	?????	?????
???? ????	?????	?????	?????
??????? ????????	?????? ??????? ???????? ????????	?????? ?????? ??????? ???????	???????? ????????? ????? ???????????

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

• ??? ADC8:: ????? ????? ????????? ??????? ??????? ?????? ????????????? ??? ???? ??????? ??? ??????? ???????? ???????? ???????? ????????? ???????? ???????? ???????.
• ??? ADC6:: ??????????? ????? ?????? (????? ?? ?????? ????????) ??????? ?? ??? ?????????? ??? ???? ??????? ???????? ???????? ???????? ???????.
• ??? ADC5:: ??????????? ?????? ?????? ??????? ???? ???????????? ??? ???? ??????? ???????? ????????? ????? ???????????.