Surley is a collection of pretreatment and electrophoresis processes Spray booth oven conveying system shower test bench environmental protection technology Accessories workstationstyle all in one store.
2021 Good Quality Standard Spray Booth - Pretreatment and electrocoating process – Surley
2021 Good Quality Standard Spray Booth - Pretreatment and electrocoating process – Surley Detail:
Product Description
Various materials and their products in the process of processing, transportation, storage, its surface is easy to produce or
stick foreign matter, such as machining burr, oxide skin, oil, etc., these surface contaminants will affect the compactness of the coating and the bonding strength with the matrix. Coating pretreatment of the mainThe objective is to remove these substances and perform the appropriate surface chemical conversion to provide suitableCoating requirements of the substrate, in order to increase the adhesion of the film, prolong the service life of the film, Give full play to the protective effect and decorative effect of coating.
Therefore, spray the content before processing. It mainly includes the following aspects:
Degreasing before coating
Steel and its parts in the process of storage and transportation to use antirust oil protection, sheet metal workpiece in drawing oil should be used when pressure processing, parts should contact emulsion when machining, heat treatment may contact cooling oil, when parts are often have oil stains and HanJi of the operator’s hands, the grease of the parts but also the impurities such as always and dust mixed together All this, all kinds of oil on the parts not only hinder the formation of phosphating film, but also affect the adhesion of the coating drying performance decorative performance and corrosion resistance Table 3-1 lists the different pretreatment of cold rolled steel plate. Effect of cathodic electrophoretic coating on corrosion resistance.
Phosphating
Phosphating is a simple, reliable, low-cost and convenient process to greatly improve the corrosion resistance of metal surface coating. It has been widely used at home and abroad, especially in automobile coating, which is more widely used in recent years. Almost 100% of the thin plate parts in the automobile industry are phosphating Phosphating process refers to the metal surface in contact with the acid solution containing dihydrogen phosphate salt, chemical reaction and generated in the metal surface stability of the insoluble inorganic compound membrane layer of a surface chemical treatment method and the generated film called phosphating film.
Phosphate film principle
phosphating film was able to provide a very appropriate base for paint coating, is due to the following effect ：
1) Provides a clean, uniform, grease-free surface on the basis of complete degreasing
2) enhances the adhesion of organic film to the substrate due to physical and chemical action It is not difficult to understand that the porous structure of phosphating film increases the surface area of the substrate, so that the connection area between the two increases correspondingly, and the beneficial mutual permeability between the two film layers is generated. At the same time, the chemical interaction between unsaturated resin and phosphate crystal also enhances its binding force
3) provide a stable non-conductive isolation layer, once the coating damage, it has the role of corrosion inhibition, especially for anode incision The first point is often neglected Only to completely to the best of the oil to form a satisfactory phosphating film So the phosphating film itself is the most intuitive effect of pretreatment technology of the most reliable a self-check.
Product Details
Product detail pictures:
Related Product Guide:
Innovation, good quality and reliability are the core values of our enterprise. These principles today extra than ever form the basis of our success as an internationally active mid-size organization for 2021 Good Quality Standard Spray Booth - Pretreatment and electrocoating process – Surley , The product will supply to all over the world, such as: Argentina, Algeria, Turkey, We have now a good reputation for stable quality goods, well received by customers at home and abroad. Our company would be guided by the idea of "Standing in Domestic Markets, Walking into International Markets". We sincerely hope that we could do business with car manufacturers, auto part buyers and the majority of colleagues both at home and abroad. We expect sincere cooperation and common development!
By Kevin Ellyson from Peru - 2018.06.09 12:42
It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
By Myrna from Lebanon - 2018.05.22 12:13
