CN106319417A - Galvanizing method of steel plate - Google Patents
Galvanizing method of steel plate Download PDFInfo
- Publication number
- CN106319417A CN106319417A CN201510357265.1A CN201510357265A CN106319417A CN 106319417 A CN106319417 A CN 106319417A CN 201510357265 A CN201510357265 A CN 201510357265A CN 106319417 A CN106319417 A CN 106319417A
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- CN
- China
- Prior art keywords
- steel plate
- plating bath
- hot galvanizing
- clad layer
- galvanizing
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Abstract
A galvanizing method of a steel plate belongs to the field of a galvanizing process of a steel plate. The steel plate is subjected to hot galvanizing operation after being acid-pickled and annealed, and the method is characterized in that in the hot galvanizing operation process, the temperature of the steel plate during plating bath is 480 DEG C, a plating bath temperature in a zinc pot is 450-460 DEG C, in the plating bath, the Fe content is smaller than 0.03%, the Al content in plating bath is 0.26%, a unit velocity is 100-110m/min, a cooling rate of the steel plate is 0-2%, and a high span temperature is 246-258 DEG C. Due to hot galvanizing process conditions of the present invention, a Fe-Al intermediate transition layer between a steel plate base material and a magnetic clad layer can stop mutual diffusion between Fe and Zn, formation of a Fe-Zn alloy layer is reduced, the adhesiveness of the hot galvanizing steel plate clad layer is improved, and the phenomena of falling off and stripping of magnetic powder of the clad layer are reduced; due to the hot galvanizing process conditions, crystal orientation of the clad layer of the hot galvanizing steel plate is optimized, and the scratching resistance, wear resistance and adhesiveness of the clad layer are obviously improved.
Description
Technical field
The present invention provides the galvanized method of a kind of steel plate, belongs to steel plate zincincation field.
Background technology
Hot-dip galvanizing sheet steel is due to its good decay resistance, excellent coating performance and the outer present household electric of cleaning
The manufacturing industry such as device, body of a motor car plate are widely used.It is that coating is strong with the adhesive force of substrate that hot dip stops the requirement of steel plate coating, does not falls off, additionally to have good welding performance, decay resistance and phosphorus characteristic during Pressing Deformation, to guarantee the corrosion resistance after the adhesive force of paint film and japanning.But, there is the problems such as efflorescence and the stripping of coating in hot-dip galvanizing sheet steel in the Punching Process that reality is applied, causes the destruction of coating, have influence on the corrosion resistance of coating and the property removed further.
By changing the composition of steel plate or making surface shape by the surface roughness controlling hot-dip galvanizing sheet steel in prior art
Become the tack being improved coating and base steel by membrane technology, but do not obtain preferable effect, the method that the composition by controlling coating and organizational structure improve coating and the tack of base steel does not the most also occur.
Summary of the invention
According to above deficiency of the prior art, problem to be solved by this invention is: provide the heat that a kind of adhesive force is strong
The galvanized method of galvanized steel plain sheet.
The technical solution adopted for the present invention to solve the technical problems is: the galvanized method of a kind of steel plate, steel plate carries out galvanizing operation after pickling, annealing, it is characterized in that: in galvanizing operating process, when entering plating bath, steel billet temperature is 480 DEG C, and in zinc pot, plating bath is 448 DEG C, Fe content ＜ 0.03% in plating bath, Al content in plating bath: 0.26%, unit speed: 100～110m/min, steel plate cooldown rate is 0-2%, high across temperature: 246-258 DEG C.
Described steel plate is cooled to air-cooled, and cooldown rate is 1%.
Compared with prior art, the galvanized method of this steel plate has the beneficial effect that the hot dip of (1) present invention stops process conditions and makes the Fe-Al intermediate layer between substrate of steel plate with diction coating can stop the phase counterdiffusion between Fe, Zn, reduce the formation of Fe-Zn alloy-layer, improve the tack of hot dip galvanizing steel plate coating, the phenomenon such as coating diction powder comes off, stripping reduces；(2) the hot dip galvanizing process condition of the present invention makes the coating crystal grain orientations optimized of hot-dip galvanizing sheet steel, and the scratch resistant of coating, wearability and adhesion property significantly improve；(3) hot dip galvanizing production process of the present invention is simple, and cost is relatively low.
Detailed description of the invention
The present invention will be further described below:
Embodiment 1:
Steel plate carries out galvanizing operation after pickling, annealing, it is characterized in that: in galvanizing operating process, when entering plating bath, steel billet temperature is 480 DEG C, in zinc pot, plating bath is 448 DEG C, Fe content ＜ 0.03% in plating bath, Al content in plating bath: 0.26%, unit speed: 100～110m/min, steel plate cooldown rate is 0-2%, high across temperature: 246-258 DEG C.
On the basis of above example, described steel plate is cooled to air-cooled, and cooldown rate is 1%.
Claims (2)
1. a galvanized method for steel plate, steel plate carries out galvanizing operation after pickling, annealing, it is characterised in that: in galvanizing operating process, when entering plating bath, steel billet temperature is 480 DEG C, in zinc pot, plating bath is 448 DEG C, Fe content ＜ 0.03%, Al in plating bath in plating bath
Content: 0.26%, unit speed: 100～110m/min, steel plate cooldown rate is 0-2%, high across temperature: 246-258 DEG C.
2. according to the galvanized method of the steel plate described in claim 1, it is characterised in that: described steel plate is cooled to air-cooled, and cooldown rate is 1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357265.1A CN106319417A (en) | 2015-06-26 | 2015-06-26 | Galvanizing method of steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357265.1A CN106319417A (en) | 2015-06-26 | 2015-06-26 | Galvanizing method of steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319417A true CN106319417A (en) | 2017-01-11 |
Family
ID=57728658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510357265.1A Pending CN106319417A (en) | 2015-06-26 | 2015-06-26 | Galvanizing method of steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319417A (en) |
-
2015
- 2015-06-26 CN CN201510357265.1A patent/CN106319417A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |