Coating is an important part of the surface manufacturing process. Anti-rust, anti-corrosion, aesthetic and changing the shortcomings of the material itself is one of the important aspects of coating quality. Coating equipment is a vital part of the entire painting process. So what are the uses of each coating equipment?
painting is an important part of surface manufacturing technology. rust prevention, corrosion resistance, aesthetics, and the modification of material usage drawbacks are important aspects of coating quality. and painting equipment is a crucial part of the entire painting process. so what are the uses of each painting equipment?
The coating production line equipment is mainly divided into surface pretreatment equipment before coating, painting equipment, coating film drying and curing equipment, mechanized conveying equipment, dust-free constant temperature and humidity air supply equipment and other ancillary equipment.
the painting equipment is mainly divided into surface pretreatment equipment before painting, painting equipment, coating drying and curing equipment, mechanized conveying equipment, dust-free constant temperature and humidity air supply equipment, and other auxiliary equipment.
1. Surface pretreatment equipment before painting.
1. surface pretreatment equipment before painting
The purpose of pretreatment is to remove the foreign matter carried by the painted parts, such as oxide scale, rust spots, grease, etc., and provide a good substrate suitable for the coating requirements, such as phosphating, oxidation, and passivation, so as to ensure that the coating has good anti-corrosion performance and decorative properties. Pretreatment equipment is mainly divided into physical formula and chemical formula.
the purpose of pre-treatment is to remove foreign objects such as oxide skin, rust spots, grease, etc. from the coated parts, and provide a good substrate suitable for painting requirements, such as phosphating, oxidation, and passivation, to ensure that the coating has good anti-corrosion and decorative properties. the pre-treatment equipment is mainly divided into physical and chemical formulas.
Physical formula: Remove impurities that adhere to the surface of the steel plate, and remove dirt such as grease with thinner. If there are sulfates or corrosive salts, they should be washed with clean water and dried with compressed air. On the steel plate pretreatment line, the scale, rust and other impurities are removed by shot blasting or sandblasting and rust removal, and then the steel surface is cleaned with a vacuum cleaner or purified compressed air.
physical formula: remove impurities attached to the surface of the steel plate, and use a diluent to remove grease and other dirt. if there are sulfates or corrosive salts, they should be washed with clean water and dried with compressed air. on the steel plate pretreatment assembly line, oxide scale, rust, and other impurities are removed by shot blasting or sandblasting, and then the surface of the steel is cleaned using a vacuum cleaner or purified compressed air.
Chemical formula: impregnation, jetting, immersion-spraying, spraying-spraying. It is mainly composed of tank, tank liquid heating system, ventilation system, tank liquid stirring system, phosphating slag removal system, oil-water separation system, etc. Among them, phosphating slag removal and oil-water separation device are the key systems, and there are common methods such as settling method, cyclone liquid separation method, inclined plate sedimentation method, bag filtration method, plate and frame filter press, etc. Oil-water separation mainly includes: adsorption method, ultrafiltration method, hot oil separation method and centrifugal method.
chemical formula: immersion type, spray type, immersion spray combination type, spray immersion spray combination type. it mainly consists of tank body, tank liquid heating system, ventilation system, tank liquid mixing system, phosphating slag removal system, oil-water separation system, etc. among them, the phosphating slag removal and oil-water separation device are key systems, and commonly used methods for phosphating slag removal include sedimentation method, rotary liquid separation method, inclined plate sedimentation method, bag filtration method, plate and frame filter press, etc. the main methods for oil-water separation include adsorption, ultrafiltration, hot oil separation, and centrifugation.
2. Painting equipment.
2 spray painting equipment
There are many methods of painting, including brushing, dipping, air spraying, high-pressure airless spraying, electrostatic spraying, electrophoretic painting, painting, etc. The ideal painting environment should meet the requirements of good lighting, proper temperature, humidity and cleanliness, good ventilation and fire and explosion protection.
there are many methods for spray painting, including brushing, immersion painting, air spraying, high-pressure airless spraying, electrostatic spraying, electrophoretic spraying, spray painting, etc. the ideal spray painting environment should meet the requirements of good lighting, appropriate temperature, humidity, cleanliness, good ventilation, and fire and explosion prevention.
The function of the painting equipment is to limit the oversprayed paint mist to a certain area and filter it, so that the operator can get a working environment that meets the sanitary conditions and safety specifications. In addition, construction conditions with a certain temperature, humidity and cleanliness should also be provided.
the function of spray painting equipment is to limit the sprayed paint mist to a certain area and filter it, so that the operator can obtain a working environment that meets hygiene conditions and safety standards. in addition, construction conditions with certain temperature, humidity, and cleanliness should also be provided.
Common paint booths are divided into:
common paint spraying rooms are divided into:
Dry paint booth --- suitable for painting small batches of workpieces
dry spray painting room - suitable for painting small batches of workpieces;
Spray booth --- suitable for painting small workpieces
spray painting room - suitable for painting small workpieces;
The water curtain paint booth --- suitable for painting medium workpieces
water curtain painting room - suitable for painting medium workpieces;
The water spin spray booth --- suitable for painting large workpieces with high decorative requirements.
water spiral spray painting room - suitable for painting large workpieces with high decorative requirements.
3. Painting booth. 3 spray paint room
Also known as the paint booth, it is composed of the following parts and equipment:
also known as spray painting room, it consists of the following parts and equipment:
1) Chamber: The function is to limit the overspray paint mist to a certain range.
1) chamber: its function is to limit the spray paint mist within a certain range.
2) Paint mist filtration device: dry type and wet type. Dry type filters the paint mist down through a baffle or filter paper. The wet type separates the paint mist particles from the air by mixing air and water.
2) paint mist filtration device: divided into dry and wet types. dry filter the paint mist through a baffle or filter **wet separation is the process of separating paint mist particles from the air through a mixture of air and water.
3) Water supply system: ensure the normal circulation of the water required by the wet paint booth.
3) water supply system: ensure the normal circulation of water required for the wet spray painting room.
4) Ventilation system: It is composed of air supply and exhaust air, which provides air with a certain temperature, humidity and cleanliness to the equipment to ensure that the indoor air is in a laminar flow state.
4) ventilation system: composed of air supply and exhaust, providing equipment with air with a certain temperature, humidity, and cleanliness, ensuring that indoor air is in a laminar flow state.
5) Lighting fixture: ensure that the equipment has good lighting.
5) lighting device: ensure that the equipment has good lighting.
6) Paint dipping equipment: The workpiece is immersed in the paint liquid, and a layer of paint is adhered to the surface of the workpiece by using the adhesion of the paint liquid. The impregnation equipment is mainly composed of a tank, a residual paint removal device, a stirring device, a heating device, a ventilation device and a fire safety device.
6) dipping equipment: immerse the workpiece in the paint solution and use the adhesion of the paint solution to adhere a layer of paint to the surface of the workpiece. the impregnation equipment mainly consists of a tank, a residual paint removal device, a stirring device, a heating device, a ventilation device, and a fire safety device.
7) Electrostatic spraying equipment: based on the principle of electrostatic field on electric charge. Generally, it consists of an electrostatic spray room, a high-voltage electrostatic generator, an electrostatic spray gun device, a paint supply device, a safety device, etc.
7) electrostatic spraying equipment: it is implemented based on the principle of the action of electrostatic field on charges. it generally consists of an electrostatic spray booth, a high-voltage electrostatic generator, an electrostatic spray gun device, a paint supply device, a safety device, etc.
8) Electrophoretic painting equipment: Electrophoretic painting is to form a protective coating by coating the ionized paint particles dispersed in water on the working surface through electrophoresis under the action of an external electric field. The electrophoresis equipment is generally composed of a tank, a stirring circulation system, an electrode device, a paint liquid temperature regulating device, a paint supply device, a ventilation device, a power supply device and a post-electrophoresis flushing device.
8) electrophoretic spray painting equipment: electrophoretic spray painting is a protective coating formed by applying ionized paint particles dispersed in water to the working surface through electrophoretic coating under the action of an external electric field. electrophoresis equipment generally consists of a tank, a stirring circulation system, an electrode device, a paint temperature regulation device, a coating supply device, a ventilation device, a power supply device, and a post electrophoresis washing device.
9) Powder electrostatic spraying equipment: powder coating has good economy, no environmental pollution, high efficiency, and the coating thickness can reach more than 50 m in one spraying. Powder electrostatic spraying equipment mainly includes powder spraying chamber, high-voltage electrostatic generator, electrostatic powder spraying gun, powder feeder, powder ** device and so on.
9) powder electrostatic spraying equipment: powder coating has good economy, no environmental pollution, high efficiency, and can achieve a coating thickness of 50 in one spraying μ above m. the powder electrostatic spraying equipment mainly includes a powder spraying room, a high-voltage electrostatic generator, an electrostatic powder spraying gun, a powder feeder, a powder recovery device, and other components.
4. Drying equipment.
4 drying equipment
According to the heating method, it is divided into --- convection drying, radiation drying, and convection radiation dryingAccording to the structural form, it can be divided into --- straight-through type, bridge type, font type, etc.
according to heating methods, it can be divided into convection drying, radiation drying, and convection+radiation drying; classified by structural form: through type, bridge type п font type, etc.
Main components: the chamber body --- so that the circulating hot air does not overflow, so that the indoor temperature is kept within a certain range;The heating system --- radiant heating and convection heating to ensure that the indoor air temperature is controlled within the range of process requirementsThe air curtain system --- prevent hot air from escaping and improve thermal efficiencyThe temperature control system --- device to ensure that the temperature of each section of the room meets the process requirements.
main components: chamber - prevents the circulating hot air from overflowing and maintains the indoor temperature within a certain range; heating system - equipped with radiation heating and convection heating, ensuring that the indoor air temperature is controlled within the required range of the process; wind curtain system - prevents hot air from overflowing and improves thermal efficiency; temperature control system - a device that ensures that the indoor temperature of each section meets the process requirements.
5. Mechanized conveying equipment.
5 mechanized conveying equipment
Mechanized conveying equipment is mainly divided into two categories: air conveying and ground conveying.
mechanized conveying equipment is mainly divided into two categories: aerial conveying and ground conveying.
There are ordinary overhead conveyors, double-chain overhead conveyors, light overhead conveyors, accumulation overhead conveyors, and self-propelled hoist conveyors.
air transportation includes ordinary suspension conveyor, double chain suspension conveyor, light suspension conveyor, stacking suspension conveyor, and self-propelled hoist conveyor.
Ground conveying includes ground reverse accumulation conveyor, skid conveyor, tank chain conveyor, and ordinary ground conveyor. The role of mechanized equipment is to play an organizational and coordinating role in the entire coating production line.
ground conveyor includes ground reverse stacking conveyor, sled conveyor, tank chain conveyor, and ordinary ground conveyor. the role of mechanized equipment is to organize and coordinate throughout the entire painting production line.
6. Electronic control system.
6 electronic control system
Purpose: The controller is distributed and installed near the equipment, which is convenient for inspection and maintenance, and the controller equipment can be displayed in a centralized manner to improve the stability of operation.
usage: the controller is installed near the equipment for easy maintenance and repair. the controller equipment can be centrally displayed to improve operational stability.
Features: The equipment can be connected to the company's network, or use 4G network ** card to achieve remote data collection, intelligent production monitoring, and realize industry 40。Remote equipment maintenance, monitoring the operation status of the equipment monitoring system, transmitting data through the Internet of Things platform, and collecting and analyzing reports from industrial computers.
features: the device can be connected to the company network or use 4g network telephone cards to achieve remote data collection, intelligent production monitoring, and industry 4.0. remote equipment maintenance, monitoring the operation status of the equipment monitoring system, transmitting data through the internet of things platform, and collecting and analyzing reports on industrial computer data.