CN112221907A - Spraying process of constructional engineering machinery - Google Patents
Spraying process of constructional engineering machinery Download PDFInfo
- Publication number
- CN112221907A CN112221907A CN202010915857.1A CN202010915857A CN112221907A CN 112221907 A CN112221907 A CN 112221907A CN 202010915857 A CN202010915857 A CN 202010915857A CN 112221907 A CN112221907 A CN 112221907A
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- China
- Prior art keywords
- spraying
- workpiece
- finish paint
- primer
- engineering machinery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate 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
- 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
- B05D3/0218—Pretreatment, e.g. heating the substrate
- B05D3/0236—Pretreatment, e.g. heating the substrate with ovens
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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
- B05D3/10—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 other chemical means
- B05D3/102—Pretreatment of metallic substrates
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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
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/542—No clear coat specified the two layers being cured or baked together
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a spraying process of constructional engineering machinery, which comprises the following steps: a. surface pretreatment; b. washing with water; c. drying; d. spraying a primer; e. spraying finish paint; f. and (5) curing. Through the mode, the spraying process of the building engineering machinery, provided by the invention, is uniform in spraying, comprises the primer layer and the finish paint layer, improves the corrosion resistance on the basis of ensuring the coating effect, is not easy to peel off, prolongs the service life of a workpiece, and brings good economic benefit.
Description
Technical Field
The invention relates to the technical field of constructional engineering machinery, in particular to a spraying process of constructional engineering machinery.
Background
As is well known, a construction machine is generally used in a place with relatively high mechanical strength, and has relatively high operation strength, and since the construction machine is mostly made of metal materials, the construction machine is exposed to the outside or buried underground, and is easily rusted or corroded, thereby shortening the service life.
The coating of mechanical workpieces is one of essential production processes in modern production, and the traditional coating process has the defects of uneven spraying, rusting or corrosion due to various reasons, easy peeling and short service life of the mechanical workpieces.
Disclosure of Invention
The invention mainly solves the technical problem of providing a spraying process of the building engineering machinery, which has uniform spraying, comprises a primer layer and a finish paint layer, improves the corrosion resistance on the basis of ensuring the coating effect, is not easy to peel off, prolongs the service life of a workpiece, and brings good economic benefit.
In order to solve the technical problems, the invention adopts a technical scheme that: the spraying process of the construction engineering machinery comprises the following steps:
a. surface pretreatment: soaking the workpiece in 65-95 wt% phosphoric acid solution for 10-18min to eliminate oil stain and rust on the outer surface of the workpiece;
b. washing with water: taking out the workpiece, and washing the surface of the workpiece by water;
c. drying: drying the washed workpiece in a drying furnace until the water is completely dried, wherein the furnace temperature is controlled at 85-125 ℃ and the time is controlled at 15-25 min;
d. spraying a primer: uniformly spraying the primer on the surface of the workpiece by using a spray gun, standing for 5-10min, and forming a primer layer on the surface of the workpiece;
e. spraying finish paint: spraying finish paint on the primer layer by adopting an electric arc spraying method, standing for 3-5min, and forming a finish paint layer on the surface of the workpiece;
f. and (3) curing: baking in an oven at the temperature of 180 ℃ and 280 ℃ for 25-45min, and naturally cooling.
In a preferred embodiment of the invention, the workpiece is made of alloy steel material.
In a preferred embodiment of the invention, the primer has a thickness of 0.02-0.08 mm.
In a preferred embodiment of the invention, the thickness of the finish paint is 0.05-0.15 mm.
In a preferred embodiment of the invention, the spray gun sprays the workpiece at a distance of 5-12 cm.
In a preferred embodiment of the invention, the spraying distance from the workpiece in the electric arc spraying is 8-12 cm.
The invention has the beneficial effects that: the spraying process of the building engineering machinery, disclosed by the invention, is uniform in spraying, comprises the primer layer and the finish paint layer, improves the corrosion resistance on the basis of ensuring the coating effect, is not easy to peel off, and prolongs the service life of a workpiece, so that good economic benefits are brought.
Drawings
Fig. 1 is a flow chart of a spraying process of a construction machine according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
As shown in fig. 1, an embodiment of the present invention includes:
example 1:
a spraying process of constructional engineering machinery comprises the following steps:
a. surface pretreatment: soaking the workpiece in 65% phosphoric acid solution for 10min to remove oil stain and rust on the outer surface of the workpiece;
b. washing with water: taking out the workpiece, and washing the surface of the workpiece by water;
c. drying: drying the washed workpiece in a drying furnace until the water is completely dried, wherein the furnace temperature is controlled at 85 ℃ and the time is controlled at 15 min;
d. spraying a primer: uniformly spraying the primer on the surface of the workpiece by using a spray gun, standing for 5min, and forming a primer layer on the surface of the workpiece;
e. spraying finish paint: spraying finish paint on the primer layer by adopting an electric arc spraying method, standing for 3min, and forming a finish paint layer on the surface of the workpiece;
f. and (3) curing: baking in oven at 180 deg.C for 45min, and naturally cooling.
In the above, the workpiece is made of alloy steel material.
In this embodiment, the thickness of the primer is 0.02 mm; the thickness of the finish paint is 0.05 mm.
Further, the spraying distance from the spray gun to the workpiece is 5cm when the spray gun is used for spraying; the spraying distance from the workpiece is 8cm during electric arc spraying, and the spraying is uniform during spraying, so that the obtained primer layer and finish paint layer have improved corrosion resistance on the basis of ensuring the coating effect, and are not easy to peel off.
Example 2:
a spraying process of constructional engineering machinery comprises the following steps:
a. surface pretreatment: soaking the workpiece in a phosphoric acid solution with the mass fraction of 80% for 15min to remove oil stains and rust on the outer surface of the workpiece;
b. washing with water: taking out the workpiece, and washing the surface of the workpiece by water;
c. drying: drying the washed workpiece in a drying furnace until the water is completely dried, wherein the furnace temperature is controlled at 115 ℃ and the time is controlled at 20 min;
d. spraying a primer: uniformly spraying the primer on the surface of the workpiece by using a spray gun, standing for 8min, and forming a primer layer on the surface of the workpiece;
e. spraying finish paint: spraying finish paint on the primer layer by adopting an electric arc spraying method, standing for 4min, and forming a finish paint layer on the surface of the workpiece;
f. and (3) curing: baking in oven at 220 deg.C for 35min, and naturally cooling.
In the above, the workpiece is made of alloy steel material.
In this embodiment, the thickness of the primer is 0.06 mm; the thickness of the finish paint is 0.1 mm.
Further, the spraying distance from the spray gun to the workpiece is 8cm when the spray gun is used for spraying; the spraying distance from the workpiece is 10cm during electric arc spraying, and the spraying is uniform during spraying, so that the obtained primer layer and finish paint layer have improved corrosion resistance and are not easy to peel off on the basis of ensuring the coating effect.
Example 3:
a spraying process of constructional engineering machinery comprises the following steps:
a. surface pretreatment: soaking the workpiece in a phosphoric acid solution with the mass fraction of 95% for 18min to remove oil stains and rust on the outer surface of the workpiece;
b. washing with water: taking out the workpiece, and washing the surface of the workpiece by water;
c. drying: drying the washed workpiece in a drying furnace until the water is completely dried, wherein the furnace temperature is controlled at 125 ℃ and the time is controlled at 25 min;
d. spraying a primer: uniformly spraying the primer on the surface of the workpiece by using a spray gun, standing for 10min, and forming a primer layer on the surface of the workpiece;
e. spraying finish paint: spraying finish paint on the primer layer by adopting an electric arc spraying method, standing for 5min, and forming a finish paint layer on the surface of the workpiece;
f. and (3) curing: baking in oven at 280 deg.C for 25min, and naturally cooling.
In the above, the workpiece is made of alloy steel material.
In the embodiment, the thickness of the primer is 0.08 mm; the thickness of the finish paint is 0.15 mm.
Further, the spraying distance from the spray gun to the workpiece is 12cm when the spray gun is used for spraying; the spraying distance from the workpiece during electric arc spraying is 12cm, the spraying is uniform during spraying, so that the obtained primer layer and finish paint layer have improved corrosion resistance on the basis of ensuring the coating effect, and are not easy to peel off.
In conclusion, the spraying process of the constructional engineering machinery provided by the invention is uniform in spraying, comprises the primer layer and the finish paint layer, improves the corrosion resistance on the basis of ensuring the coating effect, is not easy to peel off, prolongs the service life of a workpiece, and brings good economic benefit.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A spraying process of constructional engineering machinery is characterized by comprising the following steps:
a. surface pretreatment: soaking the workpiece in 65-95 wt% phosphoric acid solution for 10-18min to eliminate oil stain and rust on the outer surface of the workpiece;
b. washing with water: taking out the workpiece, and washing the surface of the workpiece by water;
c. drying: drying the washed workpiece in a drying furnace until the water is completely dried, wherein the furnace temperature is controlled at 85-125 ℃ and the time is controlled at 15-25 min;
d. spraying a primer: uniformly spraying the primer on the surface of the workpiece by using a spray gun, standing for 5-10min, and forming a primer layer on the surface of the workpiece;
e. spraying finish paint: spraying finish paint on the primer layer by adopting an electric arc spraying method, standing for 3-5min, and forming a finish paint layer on the surface of the workpiece;
f. and (3) curing: baking in an oven at the temperature of 180 ℃ and 280 ℃ for 25-45min, and naturally cooling.
2. The spray coating process for a construction machine according to claim 1, wherein the workpiece is made of an alloy steel material.
3. The spray coating process for construction machinery according to claim 1, wherein the thickness of the primer is 0.02-0.08 mm.
4. The spray coating process for construction machinery according to claim 1, wherein the thickness of the finish paint is 0.05-0.15 mm.
5. The spraying process of construction machinery according to claim 1, wherein the spraying distance from the work piece when the spray gun sprays is 5-12 cm.
6. The spraying process for constructional engineering machinery as claimed in claim 1, wherein the spraying distance from the workpiece in the electric arc spraying is 8-12 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010915857.1A CN112221907A (en) | 2020-09-03 | 2020-09-03 | Spraying process of constructional engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010915857.1A CN112221907A (en) | 2020-09-03 | 2020-09-03 | Spraying process of constructional engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112221907A true CN112221907A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010915857.1A Pending CN112221907A (en) | 2020-09-03 | 2020-09-03 | Spraying process of constructional engineering machinery |
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| CN (1) | CN112221907A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010032786A1 (en) * | 2010-07-29 | 2012-02-02 | Basf Coatings Gmbh | Process for the corrosion-inhibiting coating of metal surfaces using phosphorus-containing low molecular weight compounds |
| CN102974518A (en) * | 2012-10-31 | 2013-03-20 | 广州擎天实业有限公司 | Coating process applying water-based paint to cast iron parts |
| CN105964510A (en) * | 2016-07-18 | 2016-09-28 | 河北惠驰装饰材料有限公司 | Varnish-baking surface coating technology |
| CN107234047A (en) * | 2017-04-14 | 2017-10-10 | 河北晨阳工贸集团有限公司 | The special-purpose aqueous paint spraying method of engineering machinery |
| CN107282388A (en) * | 2017-06-06 | 2017-10-24 | 青岛明珠钢结构有限公司 | A kind of anticorrosion of steel structure construction technique |
| CN111250375A (en) * | 2020-02-27 | 2020-06-09 | 中国铁建重工集团股份有限公司 | Water-based paint coating process for thick steel plate |
| CN111304664A (en) * | 2019-12-18 | 2020-06-19 | 重庆恒庐钢结构工程有限公司 | Steel structure rust removal method |
-
2020
- 2020-09-03 CN CN202010915857.1A patent/CN112221907A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010032786A1 (en) * | 2010-07-29 | 2012-02-02 | Basf Coatings Gmbh | Process for the corrosion-inhibiting coating of metal surfaces using phosphorus-containing low molecular weight compounds |
| CN102974518A (en) * | 2012-10-31 | 2013-03-20 | 广州擎天实业有限公司 | Coating process applying water-based paint to cast iron parts |
| CN105964510A (en) * | 2016-07-18 | 2016-09-28 | 河北惠驰装饰材料有限公司 | Varnish-baking surface coating technology |
| CN107234047A (en) * | 2017-04-14 | 2017-10-10 | 河北晨阳工贸集团有限公司 | The special-purpose aqueous paint spraying method of engineering machinery |
| CN107282388A (en) * | 2017-06-06 | 2017-10-24 | 青岛明珠钢结构有限公司 | A kind of anticorrosion of steel structure construction technique |
| CN111304664A (en) * | 2019-12-18 | 2020-06-19 | 重庆恒庐钢结构工程有限公司 | Steel structure rust removal method |
| CN111250375A (en) * | 2020-02-27 | 2020-06-09 | 中国铁建重工集团股份有限公司 | Water-based paint coating process for thick steel plate |
Non-Patent Citations (2)
| Title |
|---|
| 全国造价工程师执业资格考试培训教材编审委员会: "《建设工程技术与计量 安装工程》", 30 May 2013, 中国计划出版社 * |
| 赵晓伟: "《钢结构工程》", 30 September 2012, 中国铁道出版社 * |
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Application publication date: 20210115 |