Coating classification: phosphating

It is suggested that phosphatization is a process of chemical and electrochemical reaction to form phosphate chemical conversion film, which is called phosphatization film The purpose of phosphating is to provide protection for the base metal and prevent the metal from corrosion to a certain extent; it is used for priming before painting to improve the adhesion and anti-corrosion ability of the paint film; it can be used for antifriction and lubrication in the metal cold working process Phosphating technology has been used in industry for more than 90 years, which can be roughly divided into three periods: the period of laying the foundation of phosphating technology Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Phosphatization is a process of chemical and electrochemical reaction to form phosphate chemical conversion film, which is called phosphating film The purpose of phosphating is to provide protection for the base metal and prevent the metal from corrosion to a certain extent; it is used for priming before painting to improve the adhesion and anti-corrosion ability of the paint film; it can be used for antifriction and lubrication in the metal cold working process Phosphating technology has been used in industry for more than 90 years, which can be roughly divided into three periods: the period of laying the foundation of phosphating technology, the period of rapid development of phosphating technology and the period of wide application The phosphating film is used as the corrosion protection film of steel The earliest reliable record is the patent (B.P No 3119) obtained by Charles Ross in England in 1869 Since then, the phosphating process has been applied to industrial production In the past century, phosphating technology has accumulated rich experience and made many important discoveries During the first World War, the development center of phosphating technology was transferred from Britain to the United States In 1909, T.W coslet of the United States dissolved zinc, zinc oxide or zinc phosphate in phosphoric acid to make the first zinc series phosphating solution This research result has greatly promoted the development of phosphating technology and broadened the development prospect of phosphating technology Parco power researched and developed by Parker antirust company has overcome many shortcomings in the preparation of phosphating solution The phosphating treatment time has been increased to LH (1 hour) In 1929, bonderizing phosphating process reduced the phosphating time to 10min In 1934, the phosphating treatment technology made a revolutionary development in industry, that is, the method of spraying phosphating solution on the workpiece was adopted After the end of World War II, there was little breakthrough in phosphating technology, but steady development and improvement Phosphating is widely used in anti-corrosion technology, metal cold deformation processing industry In this period, the important improvement of phosphating technology mainly includes: low temperature phosphating, various methods to control the weight of phosphating film, continuous steel strip high-speed phosphating At present, the research direction of phosphating technology mainly focuses on improving quality, reducing environmental pollution and saving energy The principle and application of phosphating is a common pretreatment technology In principle, it belongs to chemical conversion coating treatment It is mainly used for phosphating of steel surface, and phosphating can also be applied to non-ferrous metals (such as aluminum and zinc) Phosphating principle 1 Home of phosphating coatings focuses on news information and coatings of coatings, diatom mud, paint coating, coating process, fire retardant coating, diatom mud, paint coating, coating process, decoration knowledge and decoration effect map of fire retardant coating,