CN104762580A - Galvanizing technology good for uniformity of galvanizing layer thickness - Google Patents
Galvanizing technology good for uniformity of galvanizing layer thickness Download PDFInfo
- Publication number
- CN104762580A CN104762580A CN201510124946.3A CN201510124946A CN104762580A CN 104762580 A CN104762580 A CN 104762580A CN 201510124946 A CN201510124946 A CN 201510124946A CN 104762580 A CN104762580 A CN 104762580A
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- CN
- China
- Prior art keywords
- inhibiter
- galvanizing
- photovoltaic
- zinc liquid
- layer thickness
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
Abstract
The invention discloses a galvanizing technology good for uniformity of galvanizing layer thickness, which is used for anticorrosion processing on the surface of a photovoltaic flat rack. The technology comprises the steps of cleaning, drying, galvanizing and cooling in order, and the cleaning comprise comprises the steps of degreasing, examining, pickling and washing in order, the degreasing step employs a water-based metal degreasing agent for removing oil on the surface of the photovoltaic flat rack, the pickling step is characterized in that when the temperature scope is between 30-35 DEG C, a pickle containing hydrogen chloride, hexamethylene tetramine and corrosion inhibitor are employed for washing the photovoltaic flat rack; the corrosion inhibitor contains a nitrogen compound-containing corrosion inhibitor and a sulfur compound-containing corrosion inhibitor; the galvanizing step is characterized in that zinc liquid is heated to 455-480 DEG C, the photovoltaic flat rack is placed in the zinc liquid for keeping for 1-1.5 minutes and then is taken out, and the zinc liquid contains aluminium. The galvanizing technology has simple process, and a galvanizing layer with better combination quality, thickness quality and uniformity quality can be conveniently obtained.
Description
Technical field
The present invention relates to solar power plant manufacture field, particularly relate to a kind of zincincation being beneficial to galvanized layer thickness homogeneity.
Background technology
The conventional energy resourcess such as coal, oil, Sweet natural gas are day by day exhausted, the problem that energy shortage causes in the world gets more and more, clean as one, pollution-free, the inexhaustible energy of sun power, utilization of new energy resources has in recent years played very important effect, existing city street lamp lighting installation, the solar energy photovoltaic panel generating group of beginning to take shape, or even the photovoltaic panel be arranged on family roof, be and alleviate the dependence of existing productive life to coal electrical travelling industry and made outstanding contribution.
Under normal circumstances, fixed type photovoltaic plate be arranged on photovoltaic grillage with make photovoltaic panel and horizontal plane angle certain, to obtain optimum power stage, in prior art, above photovoltaic grillage is owing to will bear the natural cause such as gravity or wind loading, adopt shape more, like this, the aseptic technic of photovoltaic grillage has become to affect the key factor of photovoltaic grillage life-span and regeneration.
Summary of the invention
For photovoltaic grillage above in above-mentioned prior art due to the natural cause such as gravity or wind loading will be born, adopt shape more, like this, the aseptic technic of photovoltaic grillage has become to affect the problem of the key factor of photovoltaic grillage life-span and regeneration, the invention provides a kind of zincincation being beneficial to galvanized layer thickness homogeneity.
For the problems referred to above, a kind of zincincation being beneficial to galvanized layer thickness homogeneity provided by the invention is achieved the goal by following technical essential: a kind of zincincation being beneficial to galvanized layer thickness homogeneity, for the surface anticorrosion process of photovoltaic grillage, comprise cleaning that order carries out, oven dry, pot galvanize and cooling step, described cleaning comprises degreasing that order carries out, inspection, pickling and water-washing step, it is characterized in that, described degreasing carries out oil removal treatment for adopting water-base metal grease-removing agent to photovoltaic board holder surface; Describedly verify as the photovoltaic grillage after by degreasing and be immersed in the water and pull out, whether the surface observing photovoltaic grillage is all flooded profit; Described pickling be in temperature range under the condition of 30 DEG C-35 DEG C, the pickle solution containing hydrogenchloride, hexamethylenetetramine and inhibiter is adopted to clean photovoltaic grillage, wherein, the concentration value of described hydrogenchloride in scavenging solution is between 17%-22%, and the content of hexamethylenetetramine is between 2.5-4g/L;
Described inhibiter comprises nitrogenous compound inhibiter and sulfocompound inhibiter simultaneously;
Photovoltaic grillage, for zinc liquid is heated to 455-480 DEG C, receives into after keeping 1-1.5min in zinc liquid and takes out by described pot galvanize step, and is the aluminium of 0.07-0.1% containing accounting for zinc liquid mass ratio in described zinc liquid.
In the present invention, adopt traditional hot dip galvanizing process, be convenient to the zinc coating compacted, coating is thicker like this; Simultaneously, the present invention is in the follow-up step of testing of defatting step, described checking procedure judges degreasing effect by the surface of water whether complete wetting photovoltaic grillage, like this, be beneficial to the sticking power ensured between coating and base material, zinc-plated failure or the caducous defect of zinc coating can be prevented, simultaneously, this checking procedure method is simple, is easy to realize; In acid pickling step, adopt the pickle solution of specific proportioning and carry out at specified temp, adopt the mixed inhibitor simultaneously containing nitrogenous compound inhibiter and sulfocompound inhibiter simultaneously, be conducive to preventing base material from producing excessive erosion further and reducing the hydrogen－sucking amount of base material, be convenient to obtain better slow release effect, be beneficial to mechanics and the Corrosion Protection of photovoltaic grillage in photovoltaic grillage galvanizing quality and follow-up use procedure; The selection of described galvanizing flux temperature, makes the good fluidity of zinc liquid, also can avoid photovoltaic grillage and the larger iron loss of zinc pot simultaneously, avoid producing a large amount of cadmia, thus is beneficial to and improves galvanizing quality and reduce zinc consumption; The technological design of aluminium is added in zinc liquid, to be convenient to make in zinc liquid be the aluminium of 0.07-0.1% containing accounting for zinc liquid mass ratio all the time, above aluminium can further improve the flowable of zinc liquid, be convenient to obtain bright and clean, combine compact, the uniform zinc coating of thickness of coating, meanwhile, because aluminium can loss gradually in hot galvanizing process, thus described in account for zinc liquid mass ratio be that the processing requirement of the aluminium of 0.07-0.1% makes aluminium will repeatedly or continuously add in hot dip process, like this, the sufficient homogeneity of zinc coating is more conducive to.
Further technical scheme is:
For preventing precipitation sour gas too much from pickle solution in pickle solution proportioning process, affect the component content of pickle solution, the proportioning operation of pickle solution is also comprised in described acid pickling step, described proportioning operation is after stirring in the solvent first inhibiter being added pickle solution and fully dissolving, then adds hydrogenchloride and hexamethylenetetramine.
For avoiding when zinc-plated due to the temperature of photovoltaic grillage sharply height and too much thermal distortion occurs, simultaneously because photovoltaic board holder surface contains moisture and causes that zinc liquid is quick-fried to be spattered, described baking step is for be heated to 130 DEG C-160 DEG C by photovoltaic grillage, and soaking time is between 2-3min.Choosing of above temperature range and soaking time, photovoltaic board holder surface oxidized amount in heat-processed is few, dewater thoroughly.
Be easy to obtain as a kind of and have the inhibiter of good slow release effect, described nitrogenous compound inhibiter is 826 restrainers.
Be easy to obtain as a kind of and have the inhibiter of good slow release effect, described sulfocompound inhibiter is thiocarbamide.
The present invention has following beneficial effect:
1, in the present invention, adopt traditional hot dip galvanizing process, be convenient to the zinc coating compacted, coating is thicker like this; Simultaneously, the present invention is in the follow-up step of testing of defatting step, described checking procedure judges degreasing effect by the surface of water whether complete wetting photovoltaic grillage, like this, be beneficial to the sticking power ensured between coating and base material, zinc-plated failure or the caducous defect of zinc coating can be prevented, simultaneously, this checking procedure method is simple, is easy to realize; In acid pickling step, adopt the pickle solution of specific proportioning and carry out at specified temp, adopt the mixed inhibitor simultaneously containing nitrogenous compound inhibiter and sulfocompound inhibiter simultaneously, be conducive to preventing base material from producing excessive erosion further and reducing the hydrogen－sucking amount of base material, be convenient to obtain better slow release effect, be beneficial to mechanics and the Corrosion Protection of photovoltaic grillage in photovoltaic grillage galvanizing quality and follow-up use procedure.
2, in zinc liquid, add the technological design of aluminium, to be convenient to make in zinc liquid be the aluminium of 0.07-0.1% containing accounting for zinc liquid mass ratio all the time, above aluminium can further improve the flowable of zinc liquid, be convenient to obtain bright and clean, combine compact, the uniform zinc coating of thickness of coating, simultaneously, due to aluminium meeting loss gradually in hot galvanizing process, therefore described in account for zinc liquid mass ratio be that the processing requirement of the aluminium of 0.07-0.1% makes aluminium will repeatedly or continuously add in hot dip process, like this, the sufficient homogeneity of zinc coating is more conducive to.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
Embodiment 1:
A kind of zincincation being beneficial to galvanized layer thickness homogeneity, for the surface anticorrosion process of photovoltaic grillage, comprise cleaning that order carries out, oven dry, pot galvanize and cooling step, described cleaning comprises degreasing that order carries out, inspection, pickling and water-washing step, it is characterized in that, described degreasing carries out oil removal treatment for adopting water-base metal grease-removing agent to photovoltaic board holder surface; Describedly verify as the photovoltaic grillage after by degreasing and be immersed in the water and pull out, whether the surface observing photovoltaic grillage is all flooded profit; Described pickling be in temperature range under the condition of 30 DEG C-35 DEG C, the pickle solution containing hydrogenchloride, hexamethylenetetramine and inhibiter is adopted to clean photovoltaic grillage, wherein, the concentration value of described hydrogenchloride in scavenging solution is between 17%-22%, and the content of hexamethylenetetramine is between 2.5-4g/L;
Described inhibiter comprises nitrogenous compound inhibiter and sulfocompound inhibiter simultaneously;
Photovoltaic grillage, for zinc liquid is heated to 455-480 DEG C, receives into after keeping 1-1.5min in zinc liquid and takes out by described pot galvanize step, and is the aluminium of 0.07-0.1% containing accounting for zinc liquid mass ratio in described zinc liquid.
In the present embodiment, adopt traditional hot dip galvanizing process, be convenient to the zinc coating compacted, coating is thicker like this; Simultaneously, the present invention is in the follow-up step of testing of defatting step, described checking procedure judges degreasing effect by the surface of water whether complete wetting photovoltaic grillage, like this, be beneficial to the sticking power ensured between coating and base material, zinc-plated failure or the caducous defect of zinc coating can be prevented, simultaneously, this checking procedure method is simple, is easy to realize; In acid pickling step, adopt the pickle solution of specific proportioning and carry out at specified temp, adopt the mixed inhibitor simultaneously containing nitrogenous compound inhibiter and sulfocompound inhibiter simultaneously, be conducive to preventing base material from producing excessive erosion further and reducing the hydrogen－sucking amount of base material, be convenient to obtain better slow release effect, be beneficial to mechanics and the Corrosion Protection of photovoltaic grillage in photovoltaic grillage galvanizing quality and follow-up use procedure; The technological design of aluminium is added in zinc liquid, to be convenient to make in zinc liquid be the aluminium of 0.07-0.1% containing accounting for zinc liquid mass ratio all the time, above aluminium can further improve the flowable of zinc liquid, be convenient to obtain bright and clean, combine compact, the uniform zinc coating of thickness of coating, meanwhile, because aluminium can loss gradually in hot galvanizing process, thus described in account for zinc liquid mass ratio be that the processing requirement of the aluminium of 0.07-0.1% makes aluminium will repeatedly or continuously add in hot dip process, like this, the sufficient homogeneity of zinc coating is more conducive to.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, for preventing precipitation sour gas too much from pickle solution in pickle solution proportioning process, affect the component content of pickle solution, the proportioning operation of pickle solution is also comprised in described acid pickling step, described proportioning operation is after stirring in the solvent first inhibiter being added pickle solution and fully dissolving, then adds hydrogenchloride and hexamethylenetetramine.
For avoiding when zinc-plated due to the temperature of photovoltaic grillage sharply height and too much thermal distortion occurs, simultaneously because photovoltaic board holder surface contains moisture and causes that zinc liquid is quick-fried to be spattered, described baking step is for be heated to 130 DEG C-160 DEG C by photovoltaic grillage, and soaking time is between 2-3min.Choosing of above temperature range and soaking time, photovoltaic board holder surface oxidized amount in heat-processed is few, dewater thoroughly.
Be easy to obtain as a kind of and have the inhibiter of good slow release effect, described nitrogenous compound inhibiter is 826 restrainers.
Be easy to obtain as a kind of and have the inhibiter of good slow release effect, described sulfocompound inhibiter is thiocarbamide.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (5)
1. one kind is beneficial to the zincincation of galvanized layer thickness homogeneity, for the surface anticorrosion process of photovoltaic grillage, comprise cleaning that order carries out, oven dry, pot galvanize and cooling step, described cleaning comprises degreasing that order carries out, inspection, pickling and water-washing step, it is characterized in that, described degreasing carries out oil removal treatment for adopting water-base metal grease-removing agent to photovoltaic board holder surface; Describedly verify as the photovoltaic grillage after by degreasing and be immersed in the water and pull out, whether the surface observing photovoltaic grillage is all flooded profit; Described pickling be in temperature range under the condition of 30 DEG C-35 DEG C, the pickle solution containing hydrogenchloride, hexamethylenetetramine and inhibiter is adopted to clean photovoltaic grillage, wherein, the concentration value of described hydrogenchloride in scavenging solution is between 17%-22%, and the content of hexamethylenetetramine is between 2.5-4g/L;
Described inhibiter comprises nitrogenous compound inhibiter and sulfocompound inhibiter simultaneously;
Photovoltaic grillage, for zinc liquid is heated to 455-480 DEG C, receives into after keeping 1-1.5min in zinc liquid and takes out by described pot galvanize step, and is the aluminium of 0.07-0.1% containing accounting for zinc liquid mass ratio in described zinc liquid.
2. a kind of zincincation being beneficial to galvanized layer thickness homogeneity according to claim 1, it is characterized in that, the proportioning operation of pickle solution is also comprised in described acid pickling step, described proportioning operation is after stirring in the solvent first inhibiter being added pickle solution and fully dissolving, then adds hydrogenchloride and hexamethylenetetramine.
3. a kind of zincincation being beneficial to galvanized layer thickness homogeneity according to claim 1, it is characterized in that, described baking step is for be heated to 130 DEG C-160 DEG C by photovoltaic grillage, and soaking time is between 2-3min.
4. a kind of zincincation being beneficial to galvanized layer thickness homogeneity according to claim 1, is characterized in that, described nitrogenous compound inhibiter is 826 restrainers.
5. a kind of zincincation being beneficial to galvanized layer thickness homogeneity according to claim 1, is characterized in that, described sulfocompound inhibiter is thiocarbamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124946.3A CN104762580A (en) | 2015-03-23 | 2015-03-23 | Galvanizing technology good for uniformity of galvanizing layer thickness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124946.3A CN104762580A (en) | 2015-03-23 | 2015-03-23 | Galvanizing technology good for uniformity of galvanizing layer thickness |
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| CN104762580A true CN104762580A (en) | 2015-07-08 |
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| CN201510124946.3A Pending CN104762580A (en) | 2015-03-23 | 2015-03-23 | Galvanizing technology good for uniformity of galvanizing layer thickness |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981000728A1 (en) * | 1979-09-13 | 1981-03-19 | L Rennerfelt | Purification process for spent pickling baths |
| CN1166538A (en) * | 1997-03-07 | 1997-12-03 | 沈阳市巨龙防腐技术研究所 | Normal-temp copper pickling corrosion inhibitor |
| CN101634009A (en) * | 2009-08-26 | 2010-01-27 | 无锡市堰微精密轴承厂 | Galvanized method of bearing |
| CN103014732A (en) * | 2013-01-07 | 2013-04-03 | 常州市卯旺化工有限公司 | Environmentally-friendly steel oil and rust removing solution at normal temperature |
-
2015
- 2015-03-23 CN CN201510124946.3A patent/CN104762580A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981000728A1 (en) * | 1979-09-13 | 1981-03-19 | L Rennerfelt | Purification process for spent pickling baths |
| CN1166538A (en) * | 1997-03-07 | 1997-12-03 | 沈阳市巨龙防腐技术研究所 | Normal-temp copper pickling corrosion inhibitor |
| CN101634009A (en) * | 2009-08-26 | 2010-01-27 | 无锡市堰微精密轴承厂 | Galvanized method of bearing |
| CN103014732A (en) * | 2013-01-07 | 2013-04-03 | 常州市卯旺化工有限公司 | Environmentally-friendly steel oil and rust removing solution at normal temperature |
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Application publication date: 20150708 |