Claims
- 1. A method of producing galvanized ferrous strip having a zinc base alloy coating adapted for the later application of a paint coating on the surface thereof which comprises: moving a continuous ferrous strip through a molten zinc base alloy galvanizing bath and delivering galvanized strip from the molten galvanizing bath, said zinc base alloy galvanizing bath containing 4.85-10% by weight of aluminum, 0.007-0.10% by weight of lead, 0.005-0.02% by weight of tin, and one or more members selected from the group consisting of magnesium in an amount of 0.01-0.5% by weight, calcium in an amount of 0.01-0.3% by weight, beryllium in an amount of 0.01-0.2% by weight, titanium in an amount of 0.01-0.2% by weight and copper in an amount of 0.1-1.0% by weight, and the total weight of the other elements being limited to less than 0.5% by weight.
- 2. A method of producing galvanized ferrous strip having a Zn-Al alloy coating adapted for the later application of a paint coating on the surface thereof which comprises: moving a continuous ferrous strip through a molten Zn-Al alloy galvanizing bath and delivering galvanized strip from the molten galvanizing bath, said zinc base alloy galvanizing bath containing 4.85-10% by weight of aluminum, more than 0.10% by weight of lead, more than 0.02% of tin and one or more members selected from the group consisting of Mg, Ca, Be, Ti and Cu in amounts specified below in terms of the total weight of the lead and tin:
- 0.4A.ltoreq.Mg.ltoreq.0.5%
- 0.3A.ltoreq.Ca.ltoreq.0.3%
- 0.3A.ltoreq.Be.ltoreq.0.2%
- 0.3A.ltoreq.Ti.ltoreq.0.2%
- 1.5A.ltoreq.Cu.ltoreq.1.0%
- (wherein A=Pb(%)+5.times.Sn(%)).
Priority Claims (1)
Number |
Date |
Country |
Kind |
48/31713 |
Mar 1973 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 628,494, filed on Nov. 3, 1975 now abandoned, which, in turn, is a continuation of application Ser. No. 451,230, filed on Mar. 14, 1974, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1127407 |
Sep 1968 |
GBX |
Continuations (2)
|
Number |
Date |
Country |
Parent |
628494 |
Nov 1975 |
|
Parent |
451230 |
Mar 1974 |
|