Method for manufacturing a steel component provided with a metallic corrosion protection layer and the steel component
A technology for anti-corrosion protection and steel components, which is applied in metal layered products, metal material coating processes, manufacturing tools, etc., and can solve problems such as inability to meet high requirements for paint surfaces
Active Publication Date: 2021-04-30
THYSSENKRUPP STEEL EURO AG +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, on steel strips of the "galvanized" type, in practice it is common to find visible cracks and holes in the corrosion protection layer of the metal, which are still visible even after the sheet metal has been painted and are therefore not Does not meet high demands on painted surfaces
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] exist image 3 The results of the macroscopic crack evaluation are shown in the Figure 4 The results of the microcrack evaluation shown in are based on small discs N made of zinc-coated annealed sheets with an alloyed Zn-Fe layer (GA) on the one hand and clad on the other hand. The thin sheets with the iron-based alloy (Fe-based) according to the invention are each produced by hot deep drawing.
[0035] The base material of the sheet metal used consists in each case of hardenable steel, for example 22MnB5 steel. The alloyed Zn-Fe layer of the zinc-coated annealed sheet contains about 11 wt. % Fe, about 0.3 wt. base) contains about 51% by weight of Fe, about 22% by weight of Mg and about 27% by weight of Zn.
[0036] The individual panel blanks were heated prior to hot deep drawing, ie to about 880° C., 900° C. or 920° C., and held at the above respective temperatures for a duration of 3 min, 5 min or 10 min. The correspondingly heated sheet metal parts are formed i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| depth | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for producing a steel component provided with a metallic corrosion protection layer, the steel component having very high mechanical properties, wherein an iron-based alloy containing : 50-80% by weight Fe, preferably 50-65% by weight Fe, 0-30% by weight Mg, 0-5% by weight Al, 0-5% by weight Ti, 0-10% by weight Si, 0-10% by weight of Li, 0-10% by weight of Ca, 0-30% by weight of Mn, remaining Zn and unavoidable impurities, and wherein the steel substrate coated with the iron-based alloy is hot-formed, thereby Obtain the steel member. By means of the method according to the invention, it is possible to realize a metal corrosion protection layer specially for steel components produced by the hot-forming process.
Description
technical field [0001] The invention relates to a method for producing a steel component provided with a metallic anti-corrosion protective coating and having very high mechanical properties, as well as to such a steel component. Background technique [0002] A method known and mentioned for many years for protecting steel substrates against corrosion is the hot-dip coating of sheet metal, in particular strip-shaped sheet steel, in molten baths containing zinc or zinc alloys. The layer thickness of the zinc coating is usually adjusted here by means of a stripping nozzle which is arranged above the molten bath and is aimed at the part of the steel strip which is drawn out of the molten bath substantially perpendicularly. This coating method is also called fire galvanizing. [0003] A variant of hot-galvanized sheet metal that has also been known for many years is the so-called "galvannealed". This modification is produced by heat-treating the steel strip in a furnace after ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/14C22C38/06C22C38/14C22C38/02C22C38/04C23C30/00
CPCB32B15/011C21D1/673C21D8/0405C21D8/0421C21D8/0447C21D8/0478C21D2251/02C22C38/002C22C38/02C22C38/04C22C38/06C22C38/14C23C14/16C23C14/30C23C14/562C23C14/5806C25D5/10C25D5/36C25D5/623C21D1/18C23C14/02C25D3/562C25D5/50
Inventor 贝恩德·舒马赫尔克里斯蒂安·施韦尔特阿克塞尔·施罗滕拉尔夫·鲍谢
Owner THYSSENKRUPP STEEL EURO AG