Paint lines and the use of paint sprayers and paint spray equipment, which are considered an integral part of the production department in some large factories, are one of the important processes in the preparation of parts. Among the methods of spraying paint on equipment is the use of an electrostatic powder paint sprayer, which is also known as a furnace paint machine due to the use of a baking oven to fix the paint. The use of furnace color machine is a multi-stage process of completing the parts production process.
What is an electrostatic powder sprayer?
Paint lines and the use of paint sprayers and paint spray equipment, which are considered an integral part of the production department in some large factories, are one of the important processes in the preparation of parts. Among the methods of spraying paint on equipment is the use of an electrostatic powder paint sprayer, which is also known as a furnace paint machine due to the use of a baking oven to fix the paint. The use of furnace color machine is a multi-stage process of completing the parts production process.
Specifications of the furnace paint machine
When using the electrostatic paint machine, be sure to pay attention to the fact that the selected part can withstand the temperature of the drying oven up to 200 degrees Celsius. Also, before starting painting with an electrostatic powder paint sprayer, it is better to completely clean the part and remove all debris. The structure of the electrostatic paint machine is designed in such a way that the paint spraying is done by a robotic paint sprayer or manually. The coating created with the electrostatic powder paint sprayer is much more durable and attractive than other paint spray methods after melting and is widely used in many industries, including automotive and related industries.
Types of Color Line
To buy a suitable electrostatic powder paint sprayer, you should note that in its paint line equipment, there are two types of paint lines, which are as follows:
Horizontal powder paint line of the electrostatic powder paint sprayer In this method, the piece must be cleaned first and then dried. The color spraying is done in the horizontal powder paint line by the machine, and then the piece is transferred to the baking oven for 10 to 15 seconds at a temperature of 180 to 200 degrees Celsius. In short, the use of the powder paint line includes the following steps:
Part washing
Spraying system
Spraying cabin
Powder recycling and collection system
Baking oven and conveyor system
How to operate the electrostatic powder paint machine
Pre-treatment or washing and drying stage: To achieve a uniform and resistant color coating, the product must be clean and free of any contamination. The washing station is where the parts are cleaned with detergents or chemicals such as iron phosphate along with hot water and increase the adhesion of powder paint to the surface of the part. Spraying using a paint machine gun Electrostatic powder spraying: Spraying paint powder on the surface of the piece is usually done with an electrostatic powder paint spray gun. This action is done by charging the paint powder to an electrostatic charge. In this method, compressed air moves the powder directly through the gun into the box and ejects it as a compressed cloud. The powder ejected from the gun has an electrostatic charge that sticks to the surface of the part.
Electrostatic paint room: In the paint spraying operation, one of the important points is to keep the workshop clean, which is The operation is possible by using a powder paint room or an electrostatic paint room. In order to have a suitable color room for your production line, you need to consider various things. We recommend that you contact the experts of Hyper Sanat Famco before taking any action so that you can receive more guidance. Powder paint, the last step, is exposing the piece to the heat of the electrostatic paint oven to cure the paint. These furnaces usually produce temperatures between 160 and 230 degrees Celsius. When the electrostatic powder paint oven reaches the right temperature, the temperature stabilizes. Products coated with an electrostatic powder coating machine are exposed to hot air at a precise temperature for a certain period of time. When the cooking process is complete, the pieces are removed and must be completely cooled before handling.
Purchase tips
Purchasing a powder paint spraying machine and setting up a furnace paint line is a complex and sometimes exhausting process. The steps of analyzing your workshop needs should be reviewed and engineered before any action to predict and control design and implementation costs as much as possible. To get advice and guidance on buying an electrostatic paint sprayer and other necessary raw materials, you can contact us through the communication channels listed on the website.
Safety items. Using a furnace paint machine
Items such as recycling filters or usable powder paint should match the equipment size of the electrostatic powder paint sprayer as much as possible.
To prevent the paint powder of the electrostatic powder paint sprayer from hardening. Inside the carton, keep it in favorable conditions and it is better to sift the powder paint with a 60 to 80 grade sieve before use.
If the powder does not remain suspended inside the powder paint sprayer electrostatic, it is better to control the air pressure under the tank and check and clean the holes of the fluidizing screen.
Note that the paint level in the tank of the electrostatic powder sprayer should not be more than three quarters of the volume of the tank, otherwise The powder may fall out from inside.
Using powder paint with fine granularity increases the air pressure under the tank of the electrostatic powder paint sprayer, in which case powder paint with some granularity should be used. coarse should be combined.
If the powder collects inside the hoses of the electrostatic powder sprayer and it is dispersed, it is better to increase the air pressure in the tank and replace the worn parts of the injector. If the problem is not solved, you can replace the hose with a shorter one.
Using recycled paint in a large amount of electrostatic powder paint sprayer causes irregular and scattered powder, so it is better Reduce the amount of recycled paint as much as possible.
The maximum suitable distance from the part to the gun for spraying paint is between 17 and 20 cm, otherwise the paint output on the part may be uneven.
Note that the high speed of the air in the spray gun causes the lack of paint coverage in the corners and dimples.
The incompatibility of the electrostatic paint spray gun with paint powder It causes the powder to not be charged enough and fall off the part.
The standard temperature of the oven for baking electrostatic paint is between 50 and 70 degrees Celsius, and increasing the temperature of the oven too much causes the skin of the surface to turn orange. color
Complete washing of the piece in order to prepare the surface of the object is required to use the electrostatic powder paint sprayer. Otherwise, the paint may not adhere well to the work surface and it may become flaky.