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 wholesale price Second Hand Powder Coating Oven - Pretreatment and electrocoating process – Surley
2021 wholesale price Second Hand Powder Coating Oven - 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:
We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for 2021 wholesale price Second Hand Powder Coating Oven - Pretreatment and electrocoating process – Surley , The product will supply to all over the world, such as: Kuwait, Slovenia, Adelaide, They're durable modeling and promoting effectively all over the world. Under no circumstances disappearing major functions in a quick time, it's a should for you of excellent good quality. Guided by the principle of "Prudence, Efficiency, Union and Innovation. the company make a terrific efforts to expand its international trade, raise its company profit and raise its export scale. We're confident that we are going to possess a vibrant prospect and to be distributed all over the world within the years to come.
By Evelyn from Qatar - 2017.02.14 13:19
Adhering to the business principle of mutual benefits, we have a happy and successful transaction, we think we will be the best business partner.
By Prima from Turin - 2018.06.12 16:22
