CN200943104Y - Band steel continuous hot zinc coating process equipment - Google Patents
Band steel continuous hot zinc coating process equipment Download PDFInfo
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- CN200943104Y CN200943104Y CN 200620084901 CN200620084901U CN200943104Y CN 200943104 Y CN200943104 Y CN 200943104Y CN 200620084901 CN200620084901 CN 200620084901 CN 200620084901 U CN200620084901 U CN 200620084901U CN 200943104 Y CN200943104 Y CN 200943104Y
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Abstract
The utility model discloses a technical equipment with continuous hot steel galvanization which comprises a primary rinsing station used to clean and remove remains on the steel surface, an alkaline cleaning station sued to remove the grease on the steel surface, a pickling station used to remove oxidation peel on the steel surface, a secondary rinsing station used to remove the alkaline cleaning and pickling products on the steel surface, a hot processing station used to conduct hot processing of the steel surface and to send the steel to the galvanization procedure under the atmosphere of protective gas, and a galvanization station used to coat the steel surface; wherein the outlet of the primary rinsing station is connected to the import of the alkaline cleaning station; the outlet of the alkaline cleaning is connected to the import of the pickling station; the outlet of the pickling station is connecter to the import of the secondary; the outlet of the secondary rinsing station is connected to the import of the hot processing station; and the outlet of the hot processing station is connected to the import of the galvanization station. The utility model has benefiting effect that the oxidation peel, grease and the remains on the surface can be removed, the tensile force on the melting metal can be reduced and the coalescence force of the galvanization can be increased.
Description
Affiliated technical field
The utility model relates to a kind of processing unit with the steel continuous hot galvanizing.
Background technology
The processing unit of traditional band steel continuous hot galvanizing comprises that a scouring stage, that is used for cleaning the resistates of removing belt steel surface is used for will delivering to the zinc-plated station that heat treatment station, in zinc-plated operation is used for coating on belt steel surface with steel at shielding gas atmosphere thermal treatment band steel and in shielding gas atmosphere; wherein; the scouring stage outlet is connected to the heat treatment station import, and the heat treatment station outlet is connected to the import of zinc-plated station.Heat-treat through just beginning to send into heat treatment station behind the scouring stage, then the fat of belt steel surface and oxide skin can't be removed, and not only can improve molten metal surface tension force, but also can reduce the wetting capacity of zinc liquid, reduce the bonding force of coating.
The utility model content
Can not remove the fat of belt steel surface and the deficiency of oxide skin for the processing unit that overcomes existing band steel continuous hot galvanizing is existing, the utility model provides a kind of processing unit with the steel continuous hot galvanizing, this processing unit can be removed the fat and the oxide skin of belt steel surface, the activation steel surface, reduce molten metal surface tension force, improve the wetting capacity of zinc liquid, increase the bonding force of zinc coating.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of processing unit with the steel continuous hot galvanizing; it comprises that one is used to clean first scouring stage of the resistates of removing belt steel surface; one is used to remove the alkali cleaning station of the fat of belt steel surface; one is used to remove the acid treatment plant of the oxide skin of belt steel surface; one in cleaning the alkali cleaning of removal belt steel surface; second scouring stage of acid-leached product; one is used for will delivering to heat treatment station in zinc-plated operation with steel at shielding gas atmosphere thermal treatment band steel and in shielding gas atmosphere; one is used for the zinc-plated station of coating on belt steel surface; wherein; the outlet of first scouring stage is connected to the import of alkali cleaning station; the outlet of alkali cleaning station is connected to the acid treatment plant import; the acid treatment plant outlet is connected to the second scouring stage import; the outlet of second scouring stage connects sub-heat treatment station import, and the heat treatment station outlet is connected to the import of zinc-plated station.
Comprise that also one is used for plating the anti-oxidation protective layer of one deck for belt steel surface and will deliver to protective layer plating station in the heat treatment station import with steel in shielding gas atmosphere in shielding gas atmosphere, it is connected between outlet of second scouring stage and the heat treatment station import.
Described heat treatment station has (94-99.5) % nitrogen and (6-0.5) the hydrogen blended shielding gas of % for the annealing heat treatment station in it.
The beneficial effects of the utility model are:
One, processing unit of the present utility model comprise first scouring stage, alkali cleaning station, acid treatment plant and second scouring stage, but the resistates on scale removal, fat and surface, the activation steel surface, reduce molten metal surface tension force, improve the wetting capacity of zinc liquid, increase the bonding force of zinc coating;
Its two, the protective layer plating station, by protective layer boundary belt steel, oxidized once more to prevent being with steel;
They are three years old; behind first scouring stage, alkali cleaning station, acid treatment plant and second scouring stage; (94-99.5) % nitrogen in the annealing furnace and (6-0.5) shielding gas of the hydrogen of %; just be enough to reduce oxygen level through the remnants of the belt steel surface after the above-mentioned cleaning through calculating and test this hydrogen content; because within the scope of hydrogen content less than explosion hazard; then can reduce the sealing grade of shielding gas; also stop combustion explosion danger; also reduced the consumption of making the ammonia of shielding gas, reduced cost.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the synoptic diagram of processing unit of the present utility model.
Embodiment
A kind of processing unit with the steel continuous hot galvanizing, as shown in Figure 1, it comprises:
One first scouring stage 1, it is used to clean the resistates of removing belt steel surface;
One alkali cleaning station 2, it is used to remove the fat of belt steel surface, the solution that adopts in this alkali cleaning station 2 is 15% sodium hydroxide solution, the solution that present embodiment adopts is sodium hydroxide solution, but do not exceed, can adopt the mixed solution of sodium hydroxide, water glass, sodium phosphate, yellow soda ash etc. yet with sodium hydroxide solution;
One acid treatment plant 3, it is used to remove the oxide skin of belt steel surface, and the solution that adopts in this acid treatment plant 3 is hydrochloric acid soln, and the solution that present embodiment adopts is hydrochloric acid soln, but does not exceed with hydrochloric acid soln, also can adopt sulfuric acid etc.;
One second scouring stage 4, it is used for cleaning the alkali cleaning of removal belt steel surface, acid-leached product;
One protective layer plating station 5, it is used for plating the nickel dam of the anti-oxidation thickness of one deck for (5 sodium rice-1 micron) in shielding gas atmosphere for belt steel surface, will be with steel to deliver in heat treatment step then in shielding gas atmosphere;
One heat treatment station 6, it is used at shielding gas atmosphere thermal treatment band steel and will be with steel to deliver in zinc-plated operation in shielding gas atmosphere;
One zinc-plated station 7, it is used for coating on belt steel surface.
1 outlet of first scouring stage is connected to 2 imports of alkali cleaning station; 2 outlets of alkali cleaning station are connected to acid treatment plant 3 imports; acid treatment plant 3 outlets are connected to 4 imports of second scouring stage; 4 outlets of second scouring stage are connected to 5 imports of protective layer plating station; 5 outlets of protective layer plating station are connected to heat treatment station 6 imports, and heat treatment station 6 outlets are connected to 7 imports of zinc-plated station.
Heat treatment station is the annealing heat treatment furnace, and its shielding gas composition mainly comprises (94-99.5) % nitrogen and (6-0.5) hydrogen of %.Wherein, a nitrogen content gets 95%, and hydrogen content gets 5%, and above-mentioned ratio is a volume ratio.Through calculating and experiment, under the condition of above-mentioned shielding gas content, annealing temperature is (780-840) degree in this annealing furnace.
The band steel is successively by first scouring stage 1, alkali cleaning station 2, acid treatment plant 3, second scouring stage 4, protective layer plating station 5, heat treatment station 6 and zinc-plated station 7, even also processing step comprises first rinse step, alkali cleaning step, acid pickling step, second rinse step, protective layer plating step, heat treatment step and zinc-plated step.
As required, in second scouring stage 4 and protective layer plating station 5, also comprise a dry station, be used for the arid zones steel.
As mentioned above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (3)
1. processing unit with the steel continuous hot galvanizing; it is characterized in that: it comprises that one is used to clean first scouring stage of the resistates of removing belt steel surface; one is used to remove the alkali cleaning station of the fat of belt steel surface; one is used to remove the acid treatment plant of the oxide skin of belt steel surface; one in cleaning the alkali cleaning of removal belt steel surface; second scouring stage of acid-leached product; one is used for will delivering to heat treatment station in zinc-plated operation with steel at shielding gas atmosphere thermal treatment band steel and in shielding gas atmosphere; one is used for the zinc-plated station of coating on belt steel surface; wherein; the outlet of first scouring stage is connected to the import of alkali cleaning station; the outlet of alkali cleaning station is connected to the acid treatment plant import; the acid treatment plant outlet is connected to the second scouring stage import; the outlet of second scouring stage is connected to the heat treatment station import, and the heat treatment station outlet is connected to the import of zinc-plated station.
2. the processing unit of band steel continuous hot galvanizing according to claim 1; it is characterized in that: comprise that also one is used for plating the anti-oxidation protective layer of one deck for belt steel surface and will deliver to protective layer plating station in the heat treatment station import with steel in shielding gas atmosphere in shielding gas atmosphere, it is connected between outlet of second scouring stage and the heat treatment station import.
3. the processing unit of band steel continuous hot galvanizing according to claim 1 is characterized in that: described heat treatment station is the annealing heat treatment station, has the hydrogen blended shielding gas of 94%-99.5% nitrogen and 6%-0.5% in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084901 CN200943104Y (en) | 2006-05-25 | 2006-05-25 | Band steel continuous hot zinc coating process equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084901 CN200943104Y (en) | 2006-05-25 | 2006-05-25 | Band steel continuous hot zinc coating process equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943104Y true CN200943104Y (en) | 2007-09-05 |
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ID=38717737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620084901 Expired - Fee Related CN200943104Y (en) | 2006-05-25 | 2006-05-25 | Band steel continuous hot zinc coating process equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943104Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941290A (en) * | 2020-07-24 | 2020-11-17 | 绍兴电力设备有限公司 | Galvanizing process for steel |
-
2006
- 2006-05-25 CN CN 200620084901 patent/CN200943104Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941290A (en) * | 2020-07-24 | 2020-11-17 | 绍兴电力设备有限公司 | Galvanizing process for steel |
| CN111941290B (en) * | 2020-07-24 | 2021-04-06 | 绍兴电力设备有限公司 | Galvanizing process for steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fangming Steel Industry (Zhangzhou) Co., Ltd. Assignor: Fujian Fangming Steel & Iron Co., Ltd. Contract record no.: 2010350000183 Denomination of utility model: Band steel continuous hot zinc coating process equipment Granted publication date: 20070905 License type: Exclusive License Record date: 20100727 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20140525 |