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samedi 19 avril 2014

Understanding Electrocoating And Its Functionality

By Essie Osborn


It can be described as a painting technique that uses electrical energy to deposit the paint. Through electrocoating, manufacturers are able to produce products that are of high quality and long-lasting as well. The products also have a catchy appearance once they go through, which attracts a large number of customers.

The process is quite advantageous as it enhances the ability of a product to withstand corrosion for an extended period of time. The use of electricity to paint works due to the principle of opposites attracting each other. The process can be achieved by releasing a dc charge directly to a part that is metallic. The metallic part is then immersed into paint granules baths that are oppositely charged. As a result, the paint granules will shift towards the metal and attach themselves to it.

The amount of time to be spent on the process of painting varies accordingly, although there are several that can be mentioned. The rate and intensity of power supply that is released will determine how fast the process will take. In addition to this, the supply of power will in the long run affect the rate at which the paint will be delivered. Also, the machine model that you are using is able to determine the speed of paint. The paint's viscosity can also be a contributory factor as far as the whole process durability is concerned.

Depending on the kind of charge that is applied on the metal, anodic or cathodic painting can be achieved. Anodic process is as a result of voltage being introduced to a positive element and negative if introduced to a negative element. In this instance however, the paint should be negatively charged.

A combination of four different steps makes up the whole process. Pretreatment is the first step. In this step, the metallic surface undergoes cleansing and phosphate too. High quality products are the end products that can be expected from the procedure.

A standard bath is required for the metal where it is bathed in paint solids and water that has been ionized. These are the main components of a bath that is considered standard. The particles are allowed to move through water. Resin and pigments are the main components where resin is usually used to enhance a product's durability; pigment is mainly used for achieving the color that is desired.

The next step after painting an element is referred to as post rinsing. Here, the paint that attached itself to the component while being taken out of the bath is rinsed out and channeled back to the tank. Once this is done, the painting process becomes more successful and the appearance of a product becomes attractive.

After going through rinsing, they are taken into a bake oven. The temperature within the bake oven is quite high, which enables the layer of paint to dry up well. When the whole process is complete, the client is able to receive their goods in a carefully packaged delivery.




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