Category: Tutorial

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…

Two pack paint mixing and dosing system is a unique entry solution for 2K applications. It is an economical, compact and easy-to-use system for a wide range of demands, including high viscosity materials and high delivery rates. The external magnetic stroke meter is an effective alternative to gear flow meters and allows mixing ratios up to 20:1 with a high ± 2 % precision. As a result, it is the perfect solution to mixing and applying 2K materials in the wood and metal industries, especially for protective coating requirements. The Working Scheme Two piston pumps supply the base (A) and the hardener (B).The stroke meters measure the quantity of the A and B materials delivered and send a signal to the electronic box. The system automatically controls an injection valve,…

Many customers are not sure about the conditions that need to be met before using electrostatic spray gun. Today, we will discuss about the conditions and tips of the electrostatic spray gun operation. 1. Painting room air flow speed When spraying with an electrostatic spray gun, it is recommended the air flow speed and exhaust volume of spray booth be less than normal air based spraying. Firstly, electrostatic spraying paint fog and solvent evaporation is small, does not need too high exhaust air volume. On the other hand, if air flow is too big, it will directly affect paint absorption force in electric field and affect the electrostatic effect. The general electrostatic spray gun, recommended air flow speed is 0.5 ~ 0.7 m/s. 2. Grounding requirements for electrostatic spray gun…

Paints are accompanied by a variety of hazardous factors, whether during handling, use or during the coating process. Paints may contain hazardous substances so lassified as dangerous. Inadvertent inhalation, contact or ingestion during use may cause injury and illness. These hazardous substances also include thinners, degreasers, paint strippers and dust generated by surface treatment activities. The main danger during spray painting process are fire and explosion, followed is by the equipment used, electricity, pressurized paint, heavy paint containers and noise. 1 - Harmful substances Hazardous materials include paints, thinners, equipment cleaners, degreasers, paint strippers, and products for surface treatment. Exposure to these harmful substances can cause short-term and/or long-term health effects. 1) Short-term impact. Irritant dermatitis; skin and eye burns; vomiting; nose, throat and lung irritation; headache, dizziness, fatigue. 2)…

When the coating is not properly adjusted, it will cause problems during spraying, which will affect the quality of surface treatment. Following is a list of some problems commonly encountered in the painting process and solutions to the problem. Sag: Overdilution. Cracking: The curing agent is used too much not properly matched. Orange peel: Add too much or less curing agent. Pinhole: too much curing agent, too high viscosity, etc. Causes and fix of coating problems 1- sag Overdilution. The coating is too thick at one time, the surface is uneven, unclean, complicated in shape or oily. The nozzle is too big or too close to object surface. Improper spraying speed. Solution Reduce the dilution ratio. Spray a few more times to avoid overcoating at one time. Sand object surface…

[vc_row][vc_column][vc_single_image image="771" img_size="full" alignment="center"][vc_column_text]Electrostatic spray gun is a popular device in modern spray painting industry. The biggest advantage is its affordable cost, paint and man power saving. Electrostatic spray gun brief introduction Electrostatic spray gun is a basic device in modern industrial spray equipment. In coating line system, electrostatic spray gun is core part of surface treatment. It's configured to spray paint efficiently using a low-pressure high-atomizing device and an electrostatic force generated by the device.So it is a paint atomizer as well as an electrostatic electrode generator. Working principle: The electrostatic spray gun is based on the principle of electric spray. Object is grounded as positive electrode, paint atomization device as negative electrode, paint atomization device with a high negative voltage, forming a static electricity boundary between the two…

[vc_row][vc_column][vc_single_image image="746" img_size="full" alignment="center"][vc_column_text]Robotic paint spray is fast growing for high quality and man power saving purpose. Especially for automotive industry, more than half painting service is handled by robot. Robotic spraying not only maintains the adaptation of manual spraying to complex shapes, but also accurate and repeatable. This article will discuss various factors affecting the final coating thickness during robotic spraying. Why coating thickness control? For coating applications, film thickness is the most important controlling factor in coating process as by following points: 1- Prevention of coating defects due to improper film thickness. According to experience, more than half of appearance coating are caused by improper film thickness control. Some common issues such as sagging, thin paint, and undercoating are directly caused by loss control of coating thickness. For…