CN111013986A - Method for spraying aluminum template powder - Google Patents
Method for spraying aluminum template powder Download PDFInfo
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- CN111013986A CN111013986A CN201911269470.7A CN201911269470A CN111013986A CN 111013986 A CN111013986 A CN 111013986A CN 201911269470 A CN201911269470 A CN 201911269470A CN 111013986 A CN111013986 A CN 111013986A
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- template
- aluminum template
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- aluminum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/12—Applying particulate materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to the technical field of surface treatment of aluminum alloy templates, in particular to a method for spraying aluminum template powder, which utilizes a shot blasting machine to perform shot blasting treatment on the aluminum template; cleaning the surface of the aluminum template by using ultrahigh pressure water washing equipment, and cleaning dust and oil stains on the template after shot blasting; drying and preheating the aluminum template; and (4) spraying the preheated aluminum template by using matched template powder. The problems of environmental pollution and coating adhesion caused by the existing spraying mode are solved, and the service life of the sprayed aluminum template is prolonged; the treatment method is simple, the manufacturing cost is low, and good economic and social benefits can be brought.
Description
Technical Field
The invention relates to the technical field of surface treatment of aluminum alloy templates, in particular to a method for spraying aluminum template powder.
Background
As an environment-friendly novel building template, the aluminum alloy template is applied to a large amount of existing building construction at present, particularly high-rise building construction, because aluminum is a very active metal element, concrete is a strong alkaline substance, the pH value is not less than 12, and if the aluminum template is not subjected to spraying treatment, a large amount of compact bubbles can be formed on the surface of formed concrete due to chemical reaction generated by the aluminum and the concrete in the using process, so that the impression and the structural quality of the formed concrete are seriously influenced. And the aluminum template is after carrying out the spraying, because powder coating has kept apart aluminum template and concrete, the two will no longer produce chemical reaction to the surface of shaping concrete will no longer produce a large amount of bubbles. Therefore, the aluminum template is required and tends to be treated by powder spraying in the market.
At present, the surface treatment of the aluminum template is basically two types of coating and die protecting agent and electrostatic powder spraying. Because the adhesive force between the mold protecting agent and the aluminum template can not be controlled by adopting measures and methods, the mold protecting agent can fall off greatly when about 3-5 layers are used basically, the due effect of the mold protecting agent can not be achieved, and the coating of the mold protecting agent is difficult to realize in the construction process. In the conventional surface pretreatment of the electrostatic powder spraying of the aluminum template, a chromate solution is used for passivation treatment to generate trivalent or hexavalent chromium on the surface of the aluminum template. Harmful substances generated in the production process of the chromium compound seriously pollute the environment and harm the human health, and are not suitable for renovating the aluminum template. The method of directly spraying the new template after deoiling and directly spraying the old template after shot blasting is also available, the two spraying modes have extremely poor adhesion, and generally about 4-6 layers are used, so that the coating completely falls off.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides a reasonably designed method for spraying aluminum template powder, which solves the problems of environmental pollution and coating adhesion caused by the existing spraying mode and prolongs the service life of the sprayed aluminum template; the treatment method is simple, the manufacturing cost is low, and good economic and social benefits can be brought.
In order to achieve the purpose, the invention adopts the following technical scheme: the operation steps are as follows:
the method comprises the following steps of firstly, carrying out shot blasting treatment on an aluminum template by using a shot blasting machine;
cleaning the surface of the aluminum template by using ultrahigh pressure washing equipment, and cleaning dust and oil stains on the template after shot blasting;
step three, drying and preheating the aluminum template;
and step four, spraying the preheated aluminum template by using matched template powder.
Further, if the aluminum formwork in the first step is an old aluminum formwork, the concrete on the old aluminum formwork is cleaned, and then shot blasting is performed.
Further, after dust and oil stains on the template are cleaned in the second step, residual water stains on the template are sucked by the aid of the dirt suction cotton, and water spots are prevented from being generated in the drying process of the template.
Further, the drying temperature in the third step is 30-40 ℃, the drying time is 2-3 hours, and the preheating is carried out under the temperature.
And further, powder spraying is carried out on the template by using powder spraying equipment in the fourth step, firstly, a layer of 0.1-0.5mm powder layer is sprayed on the preheated aluminum template, then the aluminum template is sent into an oven to be continuously dried, the drying temperature is 50 ℃, the drying time is 0.5 hour, the aluminum template is taken out, then secondary powder spraying treatment is carried out on the aluminum template, a layer of 0.5-1mm powder layer is sprayed, then the aluminum template is sent into the oven to be dried again, the drying temperature is 30-50 ℃, the drying time is 0.5-2 hours, and the aluminum template is taken out and naturally cooled.
After the method is adopted, the invention has the beneficial effects that: the invention provides a method for spraying aluminum template powder, which solves the problems of environmental pollution and coating adhesion in the existing spraying mode and prolongs the service life of the sprayed aluminum template; the treatment method is simple, the manufacturing cost is low, and good economic and social benefits can be brought.
Description of the drawings:
FIG. 1 is a table of experimental data of the first, second and third examples and the comparative example.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The specific implementation mode (embodiment one) adopts the following technical scheme: the operation steps are as follows:
cleaning the concrete of the used aluminum template, and then performing shot blasting treatment on the aluminum template by using a shot blasting machine;
cleaning the surface of the aluminum template by using ultrahigh pressure washing equipment, cleaning dust and oil stains on the template after shot blasting, and then absorbing residual water stains on the template by using dirt absorbing cotton to avoid water spots generated in the process of drying the template;
step three, drying and preheating the aluminum template, wherein the drying temperature is 35 ℃, the drying time is 2 hours, and the preheating is carried out under the temperature;
step four, spraying the preheated aluminum template by using matched template powder, wherein the spraying steps are as follows: the method comprises the steps of performing powder spraying on a template by using powder spraying equipment, firstly, spraying a layer of 0.5mm powder layer on a preheated aluminum template, then sending the aluminum template into an oven to be continuously dried, taking out the aluminum template, performing secondary powder spraying treatment on the aluminum template, spraying a layer of 1mm powder layer, then sending the aluminum template into the oven to be dried again, wherein the drying temperature is 35 ℃, the drying time is 2 hours, and naturally cooling the aluminum template after taking out the aluminum template.
After the method is adopted, the beneficial effects of the specific embodiment are as follows: the specific embodiment provides a method for spraying aluminum template powder, which solves the problems of environmental pollution and coating adhesion in the existing spraying mode and prolongs the service life of the sprayed aluminum template; the treatment method is simple, the manufacturing cost is low, and good economic and social benefits can be brought.
Example two:
the embodiment adopts the following technical scheme: the operation steps are as follows:
taking a new aluminum template, and performing shot blasting treatment on the aluminum template by using a shot blasting machine;
cleaning the surface of the aluminum template by using ultrahigh pressure washing equipment, cleaning dust and oil stains on the template after shot blasting, and then absorbing residual water stains on the template by using dirt absorbing cotton to avoid water spots generated in the process of drying the template;
step three, drying and preheating the aluminum template, wherein the drying temperature is 40 ℃, the drying time is 3 hours, and the preheating is carried out under the temperature;
step four, spraying the preheated aluminum template by using matched template powder, wherein the spraying steps are as follows: powder spraying is carried out on the template by using powder spraying equipment, firstly, a layer of 0.5mm powder layer is sprayed on the preheated aluminum template, the aluminum template is sent into an oven to be continuously dried, the drying temperature is 50 ℃, the drying time is 0.5 hour, the aluminum template is taken out, secondary powder spraying treatment is carried out on the aluminum template, after a layer of 1mm powder layer is sprayed, the aluminum template is sent into the oven again to be dried, the drying temperature is 50 ℃, the drying time is 1.5 hours, and the aluminum template is naturally cooled after being taken out.
Example three:
the embodiment adopts the following technical scheme: the operation steps are as follows:
taking a new aluminum template, and performing shot blasting treatment on the aluminum template by using a shot blasting machine;
cleaning the surface of the aluminum template by using ultrahigh pressure washing equipment, cleaning dust and oil stains on the template after shot blasting, and then absorbing residual water stains on the template by using dirt absorbing cotton to avoid water spots generated in the process of drying the template;
step three, drying and preheating the aluminum template, wherein the drying temperature is 35 ℃, the drying time is 2.5 hours, and the preheating is carried out under the temperature;
step four, spraying the preheated aluminum template by using matched template powder, wherein the spraying steps are as follows: powder spraying is carried out on the template by using powder spraying equipment, firstly, a layer of 0.5mm powder layer is sprayed on the preheated aluminum template, the aluminum template is sent into an oven to be continuously dried, the drying temperature is 50 ℃, the drying time is 0.5 hour, the aluminum template is taken out, secondary powder spraying treatment is carried out on the aluminum template, after a layer of 0.5mm powder layer is sprayed, the aluminum template is sent into the oven again to be dried, the drying temperature is 45 ℃, the drying time is 1.5 hours, and the aluminum template is naturally cooled after being taken out.
And (3) test comparison:
taking aluminum templates with the same size, respectively carrying out powder spraying treatment by adopting the treatment methods in the first to third embodiments, taking the aluminum templates with the same size, carrying out powder spraying treatment by adopting the powder spraying method in the prior art to form a comparison example, cutting each powder-sprayed aluminum template into three small templates with the same size, and applying an impact force to each small template, wherein the force of the impact force is 2500N/m2Then, the peeling of the coating on each of the small templates was observed, and as can be seen from fig. 1, the peeling area was significantly smaller than that in the comparative example by the treatment described in examples one to three.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. A method for spraying aluminum template powder is characterized by comprising the following steps: the operation steps are as follows:
performing shot blasting treatment on the aluminum template by using a shot blasting machine;
cleaning the surface of the aluminum template by using ultrahigh pressure washing equipment, and cleaning dust and oil stains on the template after shot blasting;
step three, drying and preheating the aluminum template;
and (IV) spraying the preheated aluminum template by using matched template powder.
2. The method of claim 1, wherein the step of spraying the aluminum template powder comprises the steps of: and (c) if the aluminum template in the step (a) is an old aluminum template, cleaning the concrete on the old aluminum template, and then performing shot blasting treatment.
3. The method of claim 1, wherein the step of spraying the aluminum template powder comprises the steps of: and (2) after the dust and the oil stains on the template are cleaned in the step (II), residual water stains on the template are sucked by using the dirt suction cotton, so that water spots are prevented from being generated in the drying process of the template.
4. The method of claim 1, wherein the step of spraying the aluminum template powder comprises the steps of: and (3) drying at 30-40 ℃ for 2-3 hours, and preheating at the temperature.
5. The method of claim 1, wherein the step of spraying the aluminum template powder comprises the steps of: and (IV) performing powder spraying on the template by using powder spraying equipment, firstly spraying a layer of 0.1-0.5mm powder layer on the preheated aluminum template, then sending the aluminum template into an oven to be continuously dried, wherein the drying temperature is 50 ℃ and the drying time is 0.5 hour, taking out the aluminum template, performing secondary powder spraying treatment on the aluminum template, spraying a layer of 0.5-1mm powder layer, then sending the aluminum template into the oven to be dried again, the drying temperature is 30-50 ℃ and the drying time is 0.5-2 hours, taking out the aluminum template, and naturally cooling the aluminum template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269470.7A CN111013986A (en) | 2019-12-11 | 2019-12-11 | Method for spraying aluminum template powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269470.7A CN111013986A (en) | 2019-12-11 | 2019-12-11 | Method for spraying aluminum template powder |
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| CN111013986A true CN111013986A (en) | 2020-04-17 |
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| CN201911269470.7A Pending CN111013986A (en) | 2019-12-11 | 2019-12-11 | Method for spraying aluminum template powder |
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Citations (8)
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|---|---|---|---|---|
| KR20090095729A (en) * | 2008-03-06 | 2009-09-10 | 승현창 | The gilding method of the alloy wheel |
| CN102574152A (en) * | 2009-09-28 | 2012-07-11 | 开利公司 | Dual powder coating method and system |
| CN104307716A (en) * | 2014-09-23 | 2015-01-28 | 太仓万冠涂装设备有限公司 | Aluminum plate electrostatic spraying process |
| CN105457874A (en) * | 2015-12-10 | 2016-04-06 | 太仓贝斯特机械设备有限公司 | Electrostatic powder spraying method of aluminum material building door and window |
| CN106076784A (en) * | 2016-06-27 | 2016-11-09 | 肥西县碧涛建材有限公司 | A kind of spraying aluminum profile technique |
| CN108970932A (en) * | 2018-08-21 | 2018-12-11 | 湖北蓝华铝业有限公司 | A kind of aluminum profile Wood grain processing technique |
| CN110026326A (en) * | 2019-03-29 | 2019-07-19 | 安徽金源家居工艺品有限公司 | A kind of process of surface treatment of rattan chair frame aluminium alloy pipe |
| CN110252615A (en) * | 2019-06-21 | 2019-09-20 | 嘉兴佳源多彩铝业有限公司 | A kind of aluminium sheet roll coating process |
-
2019
- 2019-12-11 CN CN201911269470.7A patent/CN111013986A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090095729A (en) * | 2008-03-06 | 2009-09-10 | 승현창 | The gilding method of the alloy wheel |
| CN102574152A (en) * | 2009-09-28 | 2012-07-11 | 开利公司 | Dual powder coating method and system |
| CN104307716A (en) * | 2014-09-23 | 2015-01-28 | 太仓万冠涂装设备有限公司 | Aluminum plate electrostatic spraying process |
| CN105457874A (en) * | 2015-12-10 | 2016-04-06 | 太仓贝斯特机械设备有限公司 | Electrostatic powder spraying method of aluminum material building door and window |
| CN106076784A (en) * | 2016-06-27 | 2016-11-09 | 肥西县碧涛建材有限公司 | A kind of spraying aluminum profile technique |
| CN108970932A (en) * | 2018-08-21 | 2018-12-11 | 湖北蓝华铝业有限公司 | A kind of aluminum profile Wood grain processing technique |
| CN110026326A (en) * | 2019-03-29 | 2019-07-19 | 安徽金源家居工艺品有限公司 | A kind of process of surface treatment of rattan chair frame aluminium alloy pipe |
| CN110252615A (en) * | 2019-06-21 | 2019-09-20 | 嘉兴佳源多彩铝业有限公司 | A kind of aluminium sheet roll coating process |
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