CN112834504A - Method for easily observing precision hole and precision surface coating protection effect of part - Google Patents
Method for easily observing precision hole and precision surface coating protection effect of part Download PDFInfo
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- CN112834504A CN112834504A CN202011590018.3A CN202011590018A CN112834504A CN 112834504 A CN112834504 A CN 112834504A CN 202011590018 A CN202011590018 A CN 202011590018A CN 112834504 A CN112834504 A CN 112834504A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
The invention relates to a method for easily observing the coating protection effect of a precision hole and a precision surface of a part, which comprises the following steps: (1) a protective coating preparation method; (2) brushing; (3) checking the integrity of the glue coating layer; (4) a glue line drying detection method; (5) and removing the protective coating, and checking the precision hole and precision surface coating protective effect during the part anodizing treatment. The invention is easy to observe the coating effect, simple in method and convenient to apply.
Description
Technical Field
The invention relates to the technical field of detection methods, in particular to a method for easily observing the precision hole and precision surface coating protection effect of a part.
Background
In the anodizing process of aluminum and aluminum alloy, the traditional gluing protection method for precision holes and surfaces is to directly coat Q98-1 nitro glue solution on precision parts, wherein the glue solution is colorless and transparent after being dried, so that the coating effect is not easy to observe, and the parts are easy to be corroded and scrapped due to over-coating or over-coating; after anodization, the part is easily scratched by a knife when the part is scraped, and the precision surface is damaged.
Disclosure of Invention
The invention aims to provide a method for easily observing the coating effect, which is simple and convenient to apply, and is used for easily observing the precision hole of a part and the protection effect of precision surface coating.
The technical scheme of the invention is as follows:
a method for easily observing the coating protection effect of a precision hole and a precision surface of a part comprises the following steps:
(1) the preparation method of the protective coating comprises the following steps: pouring methyl red into a container, adding acetone to dissolve, standing for a period of time, pouring the clear solution on the upper layer into the container containing the glue solution, and adding acetone again to adjust the viscosity to the required value; preparing the first acetone adding amount and the glue solution according to the volume ratio of 1:5 to obtain the protective coating;
(2) the brushing process comprises the following steps: dipping the prepared protective coating with a clean soft brush or a brush pen, uniformly coating at least three layers of protective coatings on the non-anodized surface of the part, naturally drying for 20-30 minutes after each coating, and drying the last layer for more than 60 minutes;
(3) checking the integrity of the glue coating layer: placing the part in an environment with the illumination intensity not lower than 70LX, and visually checking that the red gluing layer is continuous and uniform;
(4) the glue line drying detection method comprises the following steps: the protective coating is touched by blunt hard objects with force, and anodization can be carried out without deformation;
(5) and (4) removing the protective coating, and checking the precision hole and precision surface coating protective effect during anodizing of the part.
Preferably, the glue solution is Q98-1 nitro glue solution and is red.
Preferably, the methyl red is added in an amount of 1 g per 100 ml of acetone in the first addition of acetone.
Preferably, the desired viscosity is acceptable as measured in a paint-1 cup for 60-100 seconds.
Preferably, the standing time of the step (1) is 20-30 h.
Preferably, the removing means of the protective coating comprises: (1) soaking in acetone: completely immersing the part in acetone, taking out the part after the protective coating is dissolved, and then washing the part with acetone or deionized water; (2) the paint protective layer was peeled off using a knife.
The invention has the beneficial effects that:
the invention solves the problems that the coating leakage or the coating multiple times are easy to occur during the coating protection in the anodizing process of aluminum and aluminum alloy and the parts are easy to scratch when the glue solution is removed after anodizing. The invention is easy to observe the coating effect, simple in method and convenient to apply.
Detailed Description
Example 1
A method for easily observing the coating protection effect of a precision hole and a precision surface of a part comprises the following steps:
(1) the preparation method of the protective coating comprises the following steps: pouring 5g of methyl red into a container, adding 500mL of acetone for dissolving, standing for 20h, pouring the clear solution on the upper layer into the container filled with the glue solution, adding acetone again to adjust the required viscosity, wherein the required viscosity is qualified after being detected by a coating-1 cup for 80 seconds; preparing the first acetone adding amount and the glue solution according to the volume ratio of 1:5 to obtain the protective coating; the glue solution is Q98-1 nitro glue solution and is red;
(2) the brushing process comprises the following steps: dipping the prepared protective coating with a clean soft brush or a brush pen, uniformly coating at least three layers of protective coatings on the non-anodized surface of the part, naturally drying for 20-30 minutes after each coating, and drying the last layer for more than 60 minutes;
(3) checking the integrity of the glue coating layer: placing the part in an environment with the illumination intensity not lower than 70LX, and visually checking that the red gluing layer is continuous and uniform;
(4) the glue line drying detection method comprises the following steps: the protective coating is touched by blunt hard objects with force, and anodization can be carried out without deformation; the blunt hard object refers to stone, brick, etc., and the touch with force refers to the touch with force on the adult hand, which is common knowledge of the technicians in the field.
(5) And removing the protective coating, and checking the precision hole and precision surface coating protective effect during the part anodizing treatment. The protective coating is removed by (1) acetone soaking: and completely immersing the part into acetone, taking out the part after the protective coating is dissolved, and then washing the part with acetone or deionized water.
Visual inspection: 1. the surface of the part is not damaged, and corrosion products such as pits, black spots and the like do not exist. 2. The hole size of the micrometer or the plug gauge meets the requirement of a drawing.
Example 2
A method for easily observing the coating protection effect of a precision hole and a precision surface of a part comprises the following steps:
(1) the preparation method of the protective coating comprises the following steps: pouring 5g of methyl red into a container, adding acetone to dissolve 500mL of methyl red, standing for 30h, pouring the clear solution on the upper layer into the container filled with the glue solution, adding acetone again to adjust the required viscosity, wherein the required viscosity is qualified after being detected by a coating-1 cup for 60 seconds; preparing the first acetone adding amount and the glue solution according to the volume ratio of 1:5 to obtain the protective coating; the glue solution is Q98-1 nitro glue solution and is red;
(2) the brushing process comprises the following steps: dipping the prepared protective coating with a clean soft brush or a brush pen, uniformly coating at least three layers of protective coatings on the non-anodized surface of the part, naturally drying for 20-30 minutes after each coating, and drying the last layer for more than 60 minutes;
(3) checking the integrity of the glue coating layer: placing the part in an environment with the illumination intensity not lower than 70LX, and visually checking that the red gluing layer is continuous and uniform;
(4) the glue line drying detection method comprises the following steps: the protective coating is touched by blunt hard objects with force, and anodization can be carried out without deformation;
(5) and removing the protective coating, and checking the precision hole and precision surface coating protective effect during the part anodizing treatment. The protective paint is removed by (2) peeling off the paint protective layer by using a cutter.
Visual inspection: 1. the surface of the part is not damaged, and corrosion products such as pits, black spots and the like do not exist. 2. The hole size of the micrometer or the plug gauge meets the requirement of a drawing.
Example 3
A method for easily observing the coating protection effect of a precision hole and a precision surface of a part comprises the following steps:
(1) the preparation method of the protective coating comprises the following steps: pouring 5g of methyl red into a container, adding acetone to dissolve 500mL, standing for 25h, pouring the clear solution on the upper layer into the container filled with the glue solution, adding acetone again to adjust the required viscosity, wherein the required viscosity is qualified after being detected by a coating-1 cup for 100 seconds; preparing the first acetone adding amount and the glue solution according to the volume ratio of 1:5 to obtain the protective coating; the glue solution is Q98-1 nitro glue solution and is red;
(2) the brushing process comprises the following steps: dipping the prepared protective coating with a clean soft brush or a brush pen, uniformly coating at least three layers of protective coatings on the non-anodized surface of the part, naturally drying for 20-30 minutes after each coating, and drying the last layer for more than 60 minutes;
(3) checking the integrity of the glue coating layer: placing the part in an environment with the illumination intensity not lower than 70LX, and visually checking that the red gluing layer is continuous and uniform;
(4) the glue line drying detection method comprises the following steps: the protective coating is touched by blunt hard objects with force, and anodization can be carried out without deformation;
(5) and removing the protective coating, and checking the precision hole and precision surface coating protective effect during the part anodizing treatment. The protective paint is removed by (2) peeling off the paint protective layer by using a cutter.
Visual inspection: 1. the surface of the part is not damaged, and corrosion products such as pits, black spots and the like do not exist. 2. The hole size of the micrometer or the plug gauge meets the requirement of a drawing.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A method for easily observing the coating protection effect of a precision hole and a precision surface of a part is characterized by comprising the following steps:
(1) the preparation method of the protective coating comprises the following steps: pouring methyl red into a container, adding acetone to dissolve, standing for a period of time, pouring the clear solution on the upper layer into the container containing the glue solution, and adding acetone again to adjust the viscosity to the required value; preparing the first acetone adding amount and the glue solution according to the volume ratio of 1:5 to obtain the protective coating;
(2) the brushing process comprises the following steps: dipping the prepared protective coating with a clean soft brush or a brush pen, uniformly coating at least three layers of protective coatings on the non-anodized surface of the part, naturally drying for 20-30 minutes after each coating, and drying the last layer for more than 60 minutes;
(3) checking the integrity of the glue coating layer: placing the part in an environment with the illumination intensity not lower than 70LX, and visually checking that the red gluing layer is continuous and uniform;
(4) the glue line drying detection method comprises the following steps: the protective coating is touched by blunt hard objects with force, and anodization can be carried out without deformation;
(5) and (4) removing the protective coating, and checking the precision hole and precision surface coating protective effect during anodizing of the part.
2. The method for easily observing part precision hole and precision surface coating protection effect according to claim 1, wherein the glue solution is Q98-1 nitro glue solution and is red.
3. The method for easily observing the protective effect of the precision hole and precision top coating of the part according to claim 1, wherein the methyl red is added in an amount of 1 g per 100 ml of acetone added for the first time.
4. The method for easily observing the protective effect of the coating on the precision hole and the precision surface of the part according to claim 1, wherein the required viscosity is qualified by using a coating-1 cup for 60-100 seconds.
5. The method for easily observing the protective effect of the precision hole and the precision surface coating of the part according to claim 1, wherein the standing time of the step (1) is 20-30 h.
6. The method for easily observing the protective effect of the coating on the precision hole and the precision surface of the part according to claim 1, wherein the protective coating is removed in a manner that comprises the following steps: (1) soaking in acetone: completely immersing the part in acetone, taking out the part after the protective coating is dissolved, and then washing the part with acetone or deionized water; (2) the paint protective layer was peeled off using a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011590018.3A CN112834504A (en) | 2020-12-29 | 2020-12-29 | Method for easily observing precision hole and precision surface coating protection effect of part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011590018.3A CN112834504A (en) | 2020-12-29 | 2020-12-29 | Method for easily observing precision hole and precision surface coating protection effect of part |
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|---|---|
| CN112834504A true CN112834504A (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011590018.3A Pending CN112834504A (en) | 2020-12-29 | 2020-12-29 | Method for easily observing precision hole and precision surface coating protection effect of part |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584150A (en) * | 2016-12-06 | 2017-04-26 | 石家庄飞机工业有限责任公司 | Clamp and method for removing coating layer of aluminum alloy sheet |
| CN108277517A (en) * | 2017-12-15 | 2018-07-13 | 石家庄飞机工业有限责任公司 | The guard method of precision holes and precision face in aluminium and Anodizing Process |
-
2020
- 2020-12-29 CN CN202011590018.3A patent/CN112834504A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584150A (en) * | 2016-12-06 | 2017-04-26 | 石家庄飞机工业有限责任公司 | Clamp and method for removing coating layer of aluminum alloy sheet |
| CN108277517A (en) * | 2017-12-15 | 2018-07-13 | 石家庄飞机工业有限责任公司 | The guard method of precision holes and precision face in aluminium and Anodizing Process |
Non-Patent Citations (1)
| Title |
|---|
| 向德轩等: "《涂料化学及工艺学实验》", 30 April 2019, 辽宁大学出版社 * |
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Application publication date: 20210525 |
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