Category: Tutorial

The application of automatic spraying system has become an important factor to measure the level of the coating production line. Automatic electrostatic spraying is one of the widely used spraying systems. The setting of process properties directly affects the coating quality. This article takes automatic electrostatic turbo bell coating as an example to find the influence of various process parameters in coating application. 1 - high voltage value of atomizer The principle of electrostatic turbo bell coating is by atomized paint thrown out through the edge and center of bell rotating at high speed, forming a cone-shaped atomized substance under the action of shaping air and high voltage, the workpiece is grounded, and the paint particles are charged with an electrostatic charge. Under the action of the electrostatic field between…

The Air-Operated Diaphragm Pump (AODP) is the most popular and cost-effective paint pump for coating applications. The flexibility of this configuration often creates some confusion when selecting a pneumatic diaphragm. In each application, different pump materials are suitable for a variety of factors such as pH, abrasive, temperature and fluid density. It is important to check the manufacturer's specifications and chemical compatibility guidelines before purchasing or operating. I - control corrosion When configuring a pneumatic diaphragm pump, it is a challenge to specify the pH of the safe handling chemicals and fluctuations in different concentrations, requiring proper selection of the pump components and pump body to ensure compatibility, avoid pump corrosion and reduce maintenance time. In applications where pH changes or when chemical concentrations may vary, plastic pump bodies such…

There are many different processes for plastic painting over different materials such as nylon, PP, PET, etc., In order to reach the best quality, we must apply necessary pretreatment in advance. In this article we'll briefly introduce popular 4 types pretreatment for plastic painting system, that is removal of internal stress, cleaning, de-dust and solving the problem of coating adhesion on plastic material. 1. Removal of internal stress Plastic products are prone to internal stress during molding injection, and stress concentration is very likely to occur during painting process, resulting in cracks in plastic parts. Flamming or full-face treatment can be used to eliminate stress. Flamming treatment is quick and direct fix (popularly used for car parts coating such as bumper). We can also heat the plastic part below the…

With the development of technology, the application of industrial robot is more and more popular. Industrial robot is a multi-purpose manipulator that can realize automatic control, reprogrammable, multi-degree of freedom, and freedom of motion to create a space-right angle relationship. The way its working mainly by completing linear motion along the X, Y, and Z axes. Because of its wide variety, motion axes and coordinate systems, it is easy to make mistakes, especially for novices. Robot motion axis The so-called axis of an industrial robot is about available degree of freedom. If the robot has three degrees of freedom, it can move freely along the x, y, and z axes, but it cannot tilt or rotate. When the number of axes of the robot increases, it is more flexible for…

Anti corrosion coating is widely used in metal industry such as architecture, furniture, automotive, ship and aircraft etc. It's crutial process for surface protection in different working conditions. There're lots of anti crossion coatings for various application, normally available as single component and two component coatings. In this article we'll generally introduce the technical process and precautions of application. What should you pay attention to when spraying single component coating? The use of single component coating is relatively straightforward, such as alkyd paints, chlorinated rubber paints, acrylic paints, and the like. Single-component coatings can also be used after opening the barrel. Stirring is the minimum requirement. Below the primer, anti-rust pigments and fillers may precipitate and separate from the resin. For topcoats, the color may not bloom. Evenly. By mechanical…

Aluminum is popular material used for lots of daily products production such as 3C items, electric components, cookware and architecture parts etc. Thus the aluminum product surface treatment is very important technique. In this article we'll briefly introduce the popular solution of aluminum anodizing and electrophoresis coating. I - aluminum and alloy aluminum characteristics 1. Low density The density of aluminum is about 2.7g/cm3, the second light metal which is only higher than magnesium in metal structure material, only 1/3 of iron or copper. 2. High ductility Aluminum and its alloys have good ductility and can be made into various types, plates, foils, tubes and wires by pressure processing such as extrusion, rolling or drawing. 3. Easy to strengthen Pure aluminum is not strong, but it can be easily strengthened…

Many people asking: I want to do stainless steel coating, how to treat it, what paint to use, how to apply it? Stainless steel corrosion phenomenon mostly occur with seawater contact. Then what kind of coating do we use? What should I pay attention to during painting? What abrasive is used for surface treatment? Or what is the best way to deal with it? To what extent is it appropriate to handle it? What processing tools should be used for local processing? Non-metallic abrasives should be used for surface treatment. The abrasive should be free of chlorine and sandblasted to increase roughness. can not use zinc-containing primer, the chloride ion content in primer should be controlled, should not contain corrosion inhibitors commonly used in carbon steel anticorrosive primer to promote…

Linear guide is a crucial component for our spray coating machine. The moving guide choice will directly decide the machine performance, that's why it's considered the most important mechanical part on multi axis spray paint machine. In RPG, we will select the most appropriate mode according to different application requirements to ensure the highest accuracy and problem free operation in long time. This article we will generally introduce the linear moving guide techniques and top 5 linear guide choice. Linear guides available as recirculating ball guide and guide rail with bearing. Should I choose a recirculating ball guide or a guide rail with bearings? Before selecting the model, let's take a look at the advantages of the two rails. Analyze to determine the right linear guide. The first is the…

As the name implies, water base paints are water-based. For example, all our paints such as metal paint and car paint etc. all have corresponding water-based paint products. It has been widely used in various industries. Water base paint is the development direction of the future paint market. The demand of safe production from enterprises, the improvement of employees' safety awareness and labor costs, the focus of coating enterprises on water-based paints have contributed to the irreversible development of water base paints. Instruction Manual Water base paints have excellent non-stickiness and durability, but the construction steps are very strict, so we must fully read and understood when using. First, the pretreatment of product: product(aluminum or stainless steel) with (360°C × 30 minutes ~ 380°C × 10 minutes) burning or solvent…

Pneumatic diaphragm pump is a volumetric pump that is driven by a compressed air source and enters through the air inlet and reciprocally deforms through the diaphragm in the diaphragm pump chamber. The working principle of pneumatic diaphragm pump is similar to reciprocating pump. For a long time after the appearance of pneumatic diaphragm pump, there are many inappropriate ways of using it safely and correctly. We have summarized some of problems we have encountered so far for basic guides to operators. Pay attention to the following when using pneumatic diaphragm pump: 1. Ensure the biggest particles contained in liquid do not exceed the pump maximum safe passage diameter. 2. The intake pressure should not exceed pneumatic diaphragm pump maximum allowable operating pressure. Excessive pressure of compressed air can cause…