Top Quality Aluminium Powder Coating Plant
Top Quality Powder Coating Plant
| Part preparation processes and equipment | ||
| Purpose | Process | Method |
| Remove oil, soil, lubrication greases, metal oxides, welding scales etc. | prior to the powder coating process | done by a variety of chemical and mechanical methods. The selection of the method depends on the size and the material of the part to be powder coated, the type of soil to be removed and the performance requirement of the finished product. |
| The pre-treatment process both cleans and improves bonding of the powder to the metal.Recent additional processes have been developed that avoid the use of chromates, as these can be toxic to the environment. | multiple stages and consist of degreasing, etching, de-smutting, various rinses and the final phosphating or chromating of the substrate. Titanium zirconium and silanes offer similar performance against corrosion and adhesion of the powder. | Chemical pre-treatments involve the use of phosphates or chromates in submersion or spray application |
| In many high end applications to get high end performance characteristics | following the pretreatment process and subsequent to the powder coating application. | the part is electrocoated , This has been particularly useful in automotive and other applications |
| Another method of preparing the surface. Blast media and blasting abrasives are used to provide surface texturing and preparation, etching, finishing, and degreasing for products made of wood, plastic, or glass. | prior to coating. The most important properties to consider are chemical composition and density; particle shape and size; and impact resistance. | abrasive blasting or sandblasting and shot blasting. |
| to clean and prepare the surface | before coating.Shot blasting recycles the media and is environmentally friendly. This method of preparation is highly efficient on steel parts such as I-beams, angles, pipes, tubes and large fabricated pieces. | Cast steel shot or steel grit. |
| Conclusion | Different powder coating plants can require alternative methods of preparation such as abrasive blasting prior to coating. The online consumer market typically offers media blasting services coupled with their coating services at additional costs. | |
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