CN110833985A - Paint spraying pull head and preparation method thereof - Google Patents
Paint spraying pull head and preparation method thereof Download PDFInfo
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- CN110833985A CN110833985A CN201911167409.1A CN201911167409A CN110833985A CN 110833985 A CN110833985 A CN 110833985A CN 201911167409 A CN201911167409 A CN 201911167409A CN 110833985 A CN110833985 A CN 110833985A
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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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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
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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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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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
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
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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
- B05D2202/30—Metallic substrate based on refractory metals (Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W)
-
- 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
- B05D2502/00—Acrylic polymers
-
- 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
- B05D2503/00—Polyurethanes
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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
- B05D2504/00—Epoxy polymers
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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 provides a preparation method of a painting pull head, which comprises the following steps: cold spraying gloss oil on the deoiled zinc alloy pull head to be painted, preheating for the first time, cold spraying primer after drying for the first time, preheating for the second time, spraying finish paint by hand after drying for the second time, preheating for the third time, and drying for the third time to obtain the paint spraying pull head; the gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint; the spraying amount of the cold spraying gloss oil and the spraying amount of the primer are both 20-50 cc/min; the temperature of the first drying and the second drying is 130-180 ℃. The invention adopts the gloss oil and the primer of specific types to spray the gloss oil and the primer in a cold mode, controls the spraying amount and the drying temperature of cold spraying, and then sprays the finish paint by hand, so that the prepared paint-spraying pull head has higher washing fastness and surface smoothness.
Description
Technical Field
The invention belongs to the technical field of pull heads, and particularly relates to a paint spraying pull head and a preparation method thereof.
Background
With the rapid development of society, people have more and more aspirations on the diversity and individuation of life style demands, more and more desirable products with personalized customization and higher environmental protection quality requirements are presented in the field of clothes, shoes and hats, and the zipper of the puller is used as an important component of the zipper, so that the quality of the zipper directly influences the quality of the zipper and the quality of the whole clothes. At present, the surface treatment of the inner pull head in the industry mainly comprises two processes of electroplating and paint spraying. The zipper head adopting electroplating treatment has high grade and good fastness, but has few colored varieties. The color can be blended according to the requirement by adopting the paint spraying treatment, but the color fastness is relatively poor, and the paint falling phenomenon can occur after a plurality of times of water washing.
Disclosure of Invention
In view of the above, the invention aims to provide a painting slider and a preparation method thereof, and the slider prepared by the method has higher washing fastness and surface smoothness.
The invention provides a preparation method of a painting pull head, which comprises the following steps:
cold spraying gloss oil on the deoiled zinc alloy pull head to be painted, preheating for the first time, cold spraying primer after drying for the first time, preheating for the second time, spraying finish paint by hand after drying for the second time, preheating for the third time, and drying for the third time to obtain the paint spraying pull head;
the gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint;
the spraying amount of the cold spraying gloss oil and the spraying amount of the primer are both 20-50 cc/min; the temperature of the first drying and the second drying is 130-180 ℃.
Preferably, the viscosity of the gloss oil adopted by the cold spray gloss oil is measured for 7-15 s by No. 1 cup viscosity measurement of the rock field.
Preferably, the rotating speeds of the cold gloss oil spraying and the cold primer spraying are both 25-40 rpm, and the coating time is 40-70 s; the temperature of the first preheating is 80-100 ℃, and the temperature of the second preheating is 80-110 ℃.
Preferably, the acrylic resin gloss oil is EU; the acrylic resin paint is selected from WJEU-540.
Preferably, the spraying amount of the cold gloss oil and the spraying amount of the primer are both 35cc/min, and the temperature of the first drying and the second drying are both 160 ℃.
Preferably, the rotating speed of the cold spraying gloss oil and the rotating speed of the cold spraying primer are both 30 rpm; the coating time is 50 s; the temperature of the first preheating and the second preheating is 90 ℃.
Preferably, the thickness of the cold gloss oil is 2-10 μm; the thickness of the cold spraying primer is 15-30 mu m.
Preferably, the time for the first drying is 16-17 min; the time for the second drying is 16-17 min; the time for the third drying is 30-60 min.
Preferably, the spraying amount of the hand-spraying finish paint is 20-50 cc/min, the temperature for third preheating is 65-75 ℃, and the temperature for third drying is 120-135 ℃.
The invention provides a paint spraying pull head which is manufactured by the manufacturing method of the technical scheme.
The invention provides a preparation method of a painting pull head, which comprises the following steps: cold spraying gloss oil on the deoiled zinc alloy pull head to be painted, preheating for the first time, cold spraying primer after drying for the first time, preheating for the second time, spraying finish paint by hand after drying for the second time, preheating for the third time, and drying for the third time to obtain the paint spraying pull head; the gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint; the spraying amount of the cold spraying gloss oil and the spraying amount of the primer are both 20-50 cc/min; the temperature of the first drying and the second drying is 130-180 ℃. The invention adopts the gloss oil and the primer of specific types to spray the gloss oil and the primer in a cold mode, controls the spraying amount and the drying temperature of cold spraying, and then sprays the finish paint by hand, so that the prepared paint-spraying pull head has higher washing fastness and surface smoothness. The experimental results show that: the QB/T2172 and 2014 standard is adopted for detection, so that the water-washing appearance of the painting pull head is qualified, and the surface smoothness is good.
Drawings
FIG. 1 is a schematic external view of a paint slider prepared in comparative example 1 of the present invention;
FIG. 2 is a schematic external view of a paint slider prepared in example 1 of the present invention;
fig. 3 is an external view schematically showing a paint slider prepared in example 2 of the present invention.
Detailed Description
The invention provides a preparation method of a painting pull head, which comprises the following steps:
cold spraying gloss oil on the deoiled zinc alloy pull head to be painted, preheating for the first time, cold spraying primer after drying for the first time, preheating for the second time, spraying finish paint by hand after drying for the second time, preheating for the third time, and drying for the third time to obtain the paint spraying pull head;
the gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint;
the spraying amount of the cold spraying gloss oil and the spraying amount of the primer are both 20-50 cc/min; the temperature of the first drying and the second drying is 130-180 ℃.
The invention adopts the gloss oil and the primer of specific types to spray the gloss oil and the primer in a cold mode, controls the spraying amount and the drying temperature of cold spraying, and then sprays the finish paint by hand, so that the prepared paint-spraying pull head has higher washing fastness and surface smoothness. The experimental results show that: the QB/T2172 and 2014 standard is adopted for detection, so that the water-washing appearance of the painting pull head is qualified, and the surface smoothness is good.
In the invention, the deoiled zinc alloy to-be-painted slider is preferably obtained according to the following method:
deoiling the zinc alloy to-be-painted pull head for 50-90 s at 30-80 ℃ by using a deoiling agent to obtain the deoiled zinc alloy to-be-painted pull head.
The degreasing agent is preferably selected from a phosphorus degreasing agent and/or phosphorus-free degreasing powder; preferably phosphorus-free defatted powder. The oil removing agent is preferably used after being diluted, and the mass ratio of the oil removing agent to water is preferably 1: 10 to 50, and more preferably 1: 20.
The oil removal temperature is preferably 50 ℃; the oil removal time is preferably 60 s.
Cleaning the degreased oil for later use.
In the invention, the gloss oil adopted in cold spraying of gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; preferably acrylic gloss oil; more preferably an acrylic gloss oil selected from the type EU. The gloss oil is preferably diluted for use; the diluent for diluting the gloss oil is preferably selected from low-benzene organic solvents used for acrylic resin paints, and more preferably from a diluent of type EU-01. The mass ratio of the gloss oil to the diluent is preferably 1:0.5 to 3, and more preferably 1: 1. The viscosity of the gloss oil adopted by the cold spray gloss oil is preferably 7-15 s measured by No. 1 cup viscosity of the rock field, and more preferably 9.5 +/-0.2 s.
In the invention, the spraying amount of the cold spraying gloss oil is 20-50 cc/min, preferably 30-40 cc/min, and more preferably 35 cc/min. The coating time of the cold spray varnish is preferably 40 to 70 seconds, more preferably 45 to 60 seconds, and most preferably 50 seconds. The rotating speed of the cold spraying gloss oil is preferably 25-40 rpm, and more preferably 30 rpm. The temperature of the first preheating is preferably 80-100 ℃, more preferably 85-95 ℃, and most preferably 90 ℃. The temperature of the primary drying is preferably 160-180 ℃, and more preferably 160 ℃. The time for primary drying is preferably 16-17 min; more preferably 1000 s. The thickness of the cold-spraying gloss oil is preferably 2-10 μm, and more preferably 3 μm.
Cold spraying primer after primary cold spraying drying; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint; preferably an acrylic pigmented paint; in a specific embodiment, the primer is selected from acrylic resin colored paints with the model number of WJ EU-540.
The primer is preferably diluted and then used; the diluent for diluting the primer is preferably selected from low-benzene organic solvents used for acrylic resin paints, and more preferably from the diluent of type EU-01. The mass ratio of the primer to the diluent of the diluted primer is preferably 1: 0.5-2, and more preferably 1: 1. The viscosity of the diluted primer is preferably measured for 7-15 s by adopting a No. 1 cup viscosity of a rock field, and more preferably 10.0 s.
In the invention, the spraying amount of the cold spraying primer is preferably 20-50 cc/min, more preferably 30-45 cc/min, and most preferably 35 cc/min. The rotating speed of the cold spraying primer is preferably 25-40 rpm, and more preferably 30 rpm; the coating time of the cold spray primer is preferably 40-70 s, and more preferably 50 s. The temperature of the second preheating is preferably 80-110 ℃, more preferably 85-100 ℃, and most preferably 90 ℃. The temperature of the second drying is preferably 130-180 ℃, more preferably 150-170 ℃, and most preferably 160 ℃. The thickness of the cold spraying primer is preferably 15-30 μm, and more preferably 20 μm.
And hanging the cold-sprayed primer and dried puller on a hanger frame for hand-spraying finish paint. In the present invention, the finish paint is preferably selected from an epoxy finish paint, a polyurethane finish paint, an acrylic finish paint or a nitro-resin finish paint, and is preferably an acrylic finish paint or an epoxy finish paint. The finish paint is preferably used after being diluted, and the mass ratio of the finish paint to the diluent of the diluted finish paint is preferably 1:0.5 to 2, and more preferably 1: 1. The viscosity of the finish paint is preferably 7-15 s measured by No. 1 cup viscosity of the rock field, and more preferably 10s measured by No. 1 cup viscosity of the rock field.
The spraying amount of the hand-sprayed finish paint is 20-50 cc/min; the spraying time is preferably 30-50 s, more preferably 35-45 s, and most preferably 40 s. The temperature of the third preheating is preferably 65-75 ℃, and more preferably 70 ℃. The time for the third preheating is preferably 5-15 min, and more preferably 10 min. The temperature of the third drying is preferably 120-135 ℃, and more preferably 125 ℃. The time for the third drying is preferably 30-60 min, and more preferably 45 min.
The method provided by the invention controls the technological parameters of the cold spraying gloss oil and the primer, such as spraying amount, preheating temperature and time, drying temperature and time, cold spraying gloss oil amount and primer amount, and combines with hand spraying finish paint, so that the prepared paint-spraying pull head is qualified in water washing appearance and good in surface smoothness.
The invention provides the paint spraying pull head prepared by the preparation method in the technical scheme.
To further illustrate the present invention, a paint slider and a method for manufacturing the same according to the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
Comparative example 1
Removing oil of a slider to be painted, which is made of zinc alloy, for 60s at 50 ℃ by taking a mixture of phosphorus-free degreasing powder and water in a mass ratio of 1:20 as an oil removing agent, and cleaning the slider for later use;
1. cold spray bottoming
The gloss oil is: acrylic resin gloss oil
Proportioning: polishing oil: diluent 1:1
Viscosity: rock field No. 1 cup viscosity measurement benchmark 9.5 seconds
Coating parameters
Discharge amount: 35 cc/min;
rotating speed: 30 rpm;
coating time: 50 seconds;
preheating temperature: 90 ℃;
drying temperature: 160 ℃;
coating thickness: 3 μm;
2. cold spraying primer
Painting: acrylic resin (WJ EU-540)
And (3) proportioning the paints: acrylic resin: the weight ratio of EU-01 diluent is 1: 1;
the viscosity requirement is as follows: measuring reference of viscosity of No. 1 cup in rock field: 10.0 seconds;
coating parameters
Discharge amount: 35 cc/min;
rotating speed: 30 rpm;
coating time: 50 seconds;
preheating temperature: 90 ℃;
drying temperature: 160 ℃;
coating thickness: 20 μm;
obtaining a cold spray painted puller; fig. 1 is a schematic external view of a paint slider prepared in comparative example 1 of the present invention. As seen from fig. 1: the color of the pull head meets the requirement of an order, and the surface smoothness is general (between dull and bright effects). The color fastness detected by washing is 3 grade, which does not meet the requirements of the finished products.
The properties of the product prepared in comparative example 1 are shown in table 1:
table 1 results of performance test of spray painting slider prepared in comparative example 1
| Item | Detection standard | Detection requirements | The result of the detection |
| Washed appearance | QB/T 2172-2014 | Washing with water for 5 times without obvious color fading | Qualified |
| Surface finish | QB/T 2172-2014 | / | In general |
| Strength of washing with water | Standard of common water washing | Grade 3, no specification |
Example 1
Removing oil of a slider to be painted, which is made of zinc alloy, for 60s at 50 ℃ by taking a mixture of phosphorus-free degreasing powder and water in a mass ratio of 1:20 as an oil removing agent, and cleaning the slider for later use;
1. cold spray bottoming
The gloss oil is: EU gloss oil
Proportioning: EU gloss oil: the weight ratio of EU-01 diluent is 1: 1;
viscosity: measuring the viscosity of a No. 1 cup in the rock field for 9.5 seconds;
coating parameters:
discharge amount: 35 cc/min;
rotating speed: 30 rpm;
coating time: 50 seconds;
preheating temperature: 90 ℃;
drying temperature: 160 ℃;
coating thickness: 3 μm;
2. cold spraying primer
Painting: acrylic resin (WJ EU-540)
And (3) proportioning the paints: acrylic resin: the mass ratio of the EU-01 diluent is 1: 1;
the viscosity requirement is as follows: measuring reference of viscosity of No. 1 cup in rock field: 10.0 seconds;
coating parameters:
discharge amount: 35 cc/min;
rotating speed: 30 rpm;
coating time: 50 seconds;
preheating temperature: 90 ℃;
drying temperature: 160 ℃;
coating thickness: 20 μm;
(3) hand-sprayed cap surface:
3.1 hanging the cold-sprayed primed pull head on a corresponding hanger frame;
3.2 preparing the paint according to the color requirement for spraying, wherein the technological parameters are as follows
The paint types are as follows: acrylic resin finish paint
And (3) proportioning the paints: acrylic resin finish: the mass ratio of the diluent is 1: 1;
the viscosity requirement is as follows: measuring reference of viscosity of No. 1 cup in rock field: 10.0 seconds;
baking process parameters
Spraying amount: 30 cc/min;
spraying time: 40 seconds;
preheating and drying temperature: 70 ℃;
preheating time: 10 minutes;
drying temperature: 125 ℃;
drying time: 45 minutes;
3.3 hanging down to obtain the finished product of the painting puller.
Fig. 2 is a schematic external view of a paint slider prepared in example 1 of the present invention, and as seen from fig. 2: the color of the pull head meets the requirement of an order, and the surface smoothness is smooth. The color fastness detected by washing is level 4, which meets the requirements of finished products and can meet the requirements of customers.
The results of the performance test of the paint sliders prepared in example 1 are shown in table 2:
table 2 results of performance test of painted slider prepared in example 1
| Item | Detection standard | Detection requirements | The result of the detection |
| Washed appearance | QB/T 2172-2014 | Washing with water for 5 times without obvious color fading | Qualified |
| Surface finish | QB/T 2172-2014 | / | Good taste |
| Strength of washing with water | Standard of common water washing | Grade 4, qualified |
Example 2
Removing oil of a slider to be painted, which is made of zinc alloy, for 60s at 50 ℃ by taking a mixture of phosphorus-free degreasing powder and water in a mass ratio of 1:20 as an oil removing agent, and cleaning the slider for later use;
1. cold spray priming varnish coating
The gloss oil is: EU gloss oil
Proportioning: EU gloss oil: the mass ratio of the EU diluent is 1: 1;
viscosity: measuring the viscosity of a No. 1 cup in the rock field for 9.5 seconds;
coating parameters
Discharge amount: 35 cc/min;
rotating speed: 30 rpm;
coating time: 50 seconds;
preheating temperature: 90 ℃;
drying temperature: 160 ℃;
coating thickness: 3 μm;
2. cold spraying primer paint
Painting: acrylic resin (WJ EU-540)
And (3) proportioning the paints: acrylic resin: diluent 1: 1;
the viscosity requirement is as follows: measuring reference of viscosity of No. 1 cup in rock field: 10.0 seconds;
coating parameters:
discharge amount: 35 cc/min;
rotating speed: 30 rpm;
coating time: 50 seconds;
preheating temperature: 90 ℃;
drying temperature: 160 ℃;
coating thickness: 20 μm;
(3) hand-sprayed cap surface:
3.1 hanging the cold-sprayed primed pull head on a corresponding hanger frame;
3.2 preparing the paint according to the color requirement for spraying, wherein the technological parameters are as follows
The paint types are as follows: epoxy resin finish paint
And (3) proportioning the paints: epoxy resin: curing agent: the mass ratio of the diluent is 3: 1: 1;
the viscosity requirement is as follows: measuring reference of viscosity of No. 1 cup in rock field: 10.0 seconds;
baking process parameters
Spraying amount: 30 cc/min;
spraying time: 40 seconds;
preheating and drying temperature: 70 ℃;
preheating time: 10 minutes;
drying temperature: 125 ℃;
drying time: 45 minutes;
3.3 hanging down to obtain the finished product of the painting puller.
Fig. 3 is a schematic external view of a paint slider prepared in example 2 of the present invention, and as seen from fig. 3: the color of the pull head meets the requirement of an order, and the surface smoothness is smooth. The color fastness detected by washing is level 4, which meets the requirements of finished products and can meet the requirements of customers.
The properties of the product prepared in example 2 are shown in table 3:
table 3 results of performance test of painted slider prepared in example 2
| Item | Detection standard | Detection requirements | The result of the detection |
| Washed appearance | QB/T 2172-2014 | Washing with water for 5 times without obvious color fading | Qualified |
| Surface finish | QB/T 2172-2014 | / | Good taste |
| Strength of washing with water | Standard of common water washing | Grade 4, qualified |
From the above embodiment, the invention provides a preparation method of a painting slider, which comprises the following steps: cold spraying gloss oil on the deoiled zinc alloy pull head to be painted, preheating for the first time, cold spraying primer after drying for the first time, preheating for the second time, spraying finish paint by hand after drying for the second time, preheating for the third time, and drying for the third time to obtain the paint spraying pull head; the gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint; the spraying amount of the cold spraying gloss oil and the spraying amount of the primer are both 20-50 cc/min; the temperature of the first drying and the second drying is 130-180 ℃. The invention adopts the gloss oil and the primer of specific types to spray the gloss oil and the primer in a cold mode, controls the spraying amount and the drying temperature of cold spraying, and then sprays the finish paint by hand, so that the prepared paint-spraying pull head has higher washing fastness and surface smoothness. The experimental results show that: the QB/T2172 and 2014 standard is adopted for detection, so that the water-washing appearance of the painting pull head is qualified, and the surface smoothness is good; the washing strength reaches 4 grades, and the product is qualified.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A preparation method of a painting pull head comprises the following steps:
cold spraying gloss oil on the deoiled zinc alloy pull head to be painted, preheating for the first time, cold spraying primer after drying for the first time, preheating for the second time, spraying finish paint by hand after drying for the second time, preheating for the third time, and drying for the third time to obtain the paint spraying pull head;
the gloss oil is selected from acrylic resin gloss oil, epoxy resin gloss oil, nitro resin gloss oil or polyurethane resin gloss oil; the primer is selected from acrylic resin colored paint, epoxy resin colored paint, nitro resin colored paint or polyurethane resin colored paint;
the spraying amount of the cold spraying gloss oil and the spraying amount of the primer are both 20-50 cc/min; the temperature of the first drying and the second drying is 130-180 ℃.
2. The preparation method of claim 1, wherein the viscosity of the gloss oil adopted by the cold spray gloss oil is measured in a No. 1 cup viscosity of a rock field for 7-15 s.
3. The preparation method of the paint, wherein the rotating speeds of the cold spraying gloss oil and the cold spraying primer are both 25-40 rpm, and the coating time is 40-70 s; the temperature of the first preheating is 80-100 ℃, and the temperature of the second preheating is 80-110 ℃.
4. The method according to claim 1, wherein the acrylic gloss oil is EU type; the type of the acrylic resin colored paint is selected from WJ EU-540.
5. The method according to claim 1, wherein the cold gloss oil and the primer are sprayed at 35cc/min and the primary drying temperature and the secondary drying temperature are 160 ℃.
6. The preparation method according to claim 3, wherein the rotation speed of the cold spraying gloss oil and the cold spraying primer is 30 rpm; the coating time is 50 s; the temperature of the first preheating and the second preheating is 90 ℃.
7. The preparation method according to claim 1, wherein the thickness of the cold-spraying varnish is 2 to 10 μm; the thickness of the cold spraying primer is 15-30 mu m.
8. The preparation method according to claim 1, wherein the time for the first drying is 16-17 min; the time for the second drying is 16-17 min; the time for the third drying is 30-60 min.
9. The preparation method of claim 1, wherein the spraying amount of the hand-spraying finish paint is 20-50 cc/min, the temperature of the third preheating is 65-75 ℃, and the temperature of the third drying is 120-135 ℃.
10. A paint-spraying slider produced by the production method according to any one of claims 1 to 9.
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| CN201911167409.1A CN110833985A (en) | 2019-11-25 | 2019-11-25 | Paint spraying pull head and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798381A (en) * | 2021-01-29 | 2022-07-29 | 浙江伟星实业发展股份有限公司 | Puller produced by environment-friendly paint spraying process and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833202A (en) * | 2017-02-15 | 2017-06-13 | 珠海富邦新材料科技有限公司 | Cold spray painting of water-based and preparation method and application |
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Application publication date: 20200225 |