发明名称 |
Zinc-coated steel for press hardening application and method of production |
摘要 |
A zinc-coated steel may be produced by performing a pre-alloying heat treatment after galvannealing the steel and prior to the hot stamping the steel. The pre-alloying heat treatment is conducted at a temperature between about 850°F and about 950°F in an open coil annealing process. The pre-alloying heat treatment allows for shorter time at the austenitization temperature to form a desired a-Fe phase in the coating by increasing the concentration of iron. This also decreases the loss of zinc, and a more adherent oxide exists after hot stamping. |
申请公布号 |
AU2014265241(B2) |
申请公布日期 |
2017.01.19 |
申请号 |
AU20140265241 |
申请日期 |
2014.05.16 |
申请人 |
AK Steel Properties, Inc. |
发明人 |
Mutschler, Ralph;Thomas, Grant Aaron;Janavicius, Paul Valdas;Garza-Martinez, Luis G. |
分类号 |
C23C2/06;B21D22/02;C21D1/673;C21D1/78;C23C2/28 |
主分类号 |
C23C2/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|