Category: Tutorial

Paint drying is to transfer wet paint to solid state. Paint or coating drying is a crucial process after precise spraying. If the paint is not properly cured in right condition, the paint layer can not stick to object or even lead to pollution to other components after assembled. In this article we provide general guides how to select a suitable drying device and introduce the current popular curing technologies. As we know, different paints are produced by different chemicals, some are solvent based and some are water based. Thus, the different rate components result in different drying conditions. Some paints can be fast dry in room temperature without any device, but some paints require extremely high temperature in a precise furnace. Generally, paints are categorized in liquid and powder…

Definition of coating Coating is a kind of liquid or powder substance, which can be uniformly covered and attached to object surface to form a continuous and dense coating layer. After dried and cured by natural or thermal condition then a solid coating film will be formed. Coating layer has protection, decoration or other special functions to object. Although the definitions of coating are slightly different in different documents, they all emphasize two characteristics of coating - it contain film-forming properties and has important impact on the substrate. Classification of film-forming substances Generally, the composition of paint is divided into three types: main film-forming substances, secondary film-forming substances, and auxiliary film-forming substances. 1. Main film-forming substances Main film-forming substance refers to the polymer material which is the basic substance in…

Our robotic painting machine is quite flexible configuration to meet with customer various paint spraying requirements. For quick understanding how we can setup the machine, we post the following for new user on how to get started. Firstly we must know what kind product to paint. For example the physical dimensions and its painting requirement(full painting or partial painting on specific area). Once we leant the actual product and it's spraying needs, we can then choose a suitable machine(machine size and available motions etc). Once the machine basic model confirmed, we can then customize machine technical properties as following. Motor - machine motion control is powered by servo motors. By default it's configured by Panasonic production which is very stable since from the very start. But if you have specific…

No matter how you compare from various robot solutions, global robot precision speed reducers are basically monopolized by Japan. In recent years, although there are other RV reducers, rarely used by robot companies like us. As a traditional manufacturing powerhouse, reducer products in Germany, Italy, Japan are leading the industry in terms of materials, design level, quality control, accuracy, power density, reliability and service life. In the field of mechanical transmission, reducer is an intermediate device that connects the power source and actuator. Usually, it uses the high-speed power of the motor and internal combustion engine to engage the large gear on the output shaft through small gear on the input shaft to reduce speed And transfer more torque. Driven by the development of aerospace, robotics, and medical equipment, the…

The work principle of electrostatic powder coating is almost the same as liquid electrostatic coatings, except that powder spraying is dispersed not atomized. It is a coating sprayed by an electrostatic powder spray gun. While dispersing, the powder particles are negatively charged. The charged powder particles are processed by air flow (or other forces such as centrifugal) and electrostatic attraction to be coated on workpiece. Then heated to melt and solidify to form a hard film. Electrostatic powder coating is primary choice for lost of hardware coating projects. Electrostatic Powder Coating Advantage Electrostatic powder coating is popularly known as "plastic powder spraying". Electrostatic powder coating is powered by a coating machine with an atomizing nozzle (to atomize the powder) and a discharge level (to generate electricity and current) to atomize…

In plastic painting line system, flame(or flamming) treatment is a popular setup to meet with high end painting requirements over different plastic materials. Especially for PP plastic, flamming is a must process for guaranteed contact to coating film. In this article we will introduce why it's important and how it works. Flame treatment refers to the process of oxidizing plastic surface with a strong oxidizing flame. It is mainly used to improve the painting characteristics and adhesive characteristics of polyolefin plastics. The technique is to increase surface activity and increase the primer adhesion to workpiece surface. Definition In order to facilitate the foaming compounding process, plastic surface tension value must meet the production requirements, surface tension value is generally required to reach about 41 dyne. However, polypropylene material surface tension…

UV painting is the most popular technology in lots of industries for various products surface finishing. Unlike most other type painting line system that can be easily operated, UV painting line has extremely high cleanness requirement. Not only to machine itself but also entire workshop construction. For some high end production requirements, the painting line clean room setup is same as medical grade. In this article we will indepth describe the operation process flow and some crucial parts technical configuration. Above is a typical UVpainting line layout for plastic vacuum metalization paint shop. Following is detailed process description NO. Content Method TEMP,℃ Time  NOTE 1 Load workpiece to fixture Manual RT   Fix product on custom jig 2 Load fixture to conveyor Manual RT     3 Electrostatic dust leaning…

Plastic metalization are often processed through uv painting and vacuum coating for various metal materials. UV painting and vacuum metalizing are two crucial steps to get perfect metal surface on plastic. To deal with different evironment requirements, we often need to apply various tests on plastic surface. That means we must choose a propriate technique to handle with. In this article we'll introduce the used technologies and compare the difference and advantages of the two vacuum coating solutions. UV Painting UV painting includes both base coat and top coat. Before vacuum metalizing, we must apply uv base coat first to get guaranteed contact between plastic and metal layer. Following is a typical chart of uv painting line system configuration. This design is workable with different plastic materials such as ABS,…