Insulating paint varnish water composition, classification and use
Hangzhou Anfeili Technology Co., Ltd. 152--6818--6621 Mr. Tan shared the basic combination, use, classification and some use techniques of insulating paint varnish water. I hope to join hands with friends for China's insulation technology. Work hard with new steps. Our company is always ready to guide you in your work and always ready to discuss solutions with you. I am always waiting for your call, I will be happy to help you; can proudly say that we have different services and professional technical team. Our ambitions and the foundation of the original humanity are fundamental; we wear the ideals and strategies of time and space, from the original to the madness of the monopoly and profession. . . . . . .
First, insulating varnish, also known as insulating coating, varnish, insulating oil, etc.; is a coating with excellent electrical insulation, has good electrical, thermal, mechanical and chemical properties, generally varnish, also Paint.
With the development of science and technology, people gradually realize that insulating materials are indispensable materials for electrical equipment, and their quality plays a key role in the economic and technical indicators and operating life of electrical equipment, and compares it to the heart of the motor heart. .
With the continuous innovation of technology, from the birth of the E-class phenolic resin in the early 19th century to the H-class silicone synthetic resin in the 1940s, the unsaturated resin and epoxy resin were developed, and it developed rapidly in the 1980s. Nowadays, not only various kinds of resin materials appear, but also higher-end insulating materials are also available in the market.
Second, the composition of the insulation material:
Insulating varnish (commonly known as: 凡立水) is composed of base materials, additives, curing agents, pigments and solvents.
The binder refers to a polyester resin, a polyester imide resin, a polyurethane, an epoxy resin, a silicone resin, or the like, which is referred to as a binder. Flame retardant: It is divided into reactive flame retardant and additive flame retardant; in Group, the composition is inorganic and organic flame retardant.
The purpose of adding pigment and filler to the coating is to improve the performance of the coating and to prepare the required color. The commonly used pigments are titanium white, red oxide, carbon black, complex yellow, mica powder and the like.
Curing agent is an indispensable component in most coatings. In epoxy resin-based flame retardant coatings, curing agents such as amine adducts, acid anhydride derivatives and synthetic resins must be added; flame retardant based on vinyl resin An appropriate amount of peroxide should be added to the coating as an initiator.
Auxiliaries are one of the indispensable components for the manufacture, storage, construction and improvement of insulating coatings. They play a special role in the coating and play an important role in the process and durability of the binder to form the film. According to the mechanism of action, it is divided into a curing accelerator, a surfactant, a rheology regulator, a storage stabilizer and an anti-aging agent. The curing accelerator can lower the curing temperature and speed up the curing.
The solvent is a diluent we often call. The solvent, as a medium for manufacturing the coating, can adjust the viscosity of the insulating coating during construction to meet the performance required in the construction. The dilution solvent in the insulating coating ensures that the coating composition of the insulating paint is not reacted, and the insulating paint is popular with a lazy diluent.
Third, insulating paint varnish classification
Insulating paint varnish water according to its use, resin used, heat resistance grade and coating curing mechanism
Classified by use: Insulating varnish, varnish water can be divided into "enamel wire lacquer, impregnated insulating varnish, covering insulating varnish, silicon steel sheet insulating varnish, adhesive insulating varnish and electronic component insulating varnish" according to the use in motors and electrical appliances.
1,
Enameled wire insulation paint (Fan Lishui)
The insulation effect of the enamelled wire lacquer is to create a good amount of insulation between the wire and the wire to prevent the flow of current. Enameled wire Van Lishui is a large category of electrical insulating varnish. As electrical insulating varnish, in addition to good dielectric and chemical properties, it must have excellent mechanical properties and certain heat resistance. Therefore, the enameled wire lacquer not only requires the film to have excellent mechanical strength and wear resistance, scratch resistance and excellent adhesion, but also must have good elasticity and flexibility, and can withstand the intricate machinery during the processing and motor operation. Resilience (such as: friction, bending, pulling, compression, impact, etc.), as well as physical strain. The paint film is heat-resistant, cold-resistant, and can withstand the temperature change under stress, and the paint film must also withstand the combined effects of heat, electrical breakdown, and mechanical properties. Due to the different specifications, models and operating conditions of the enamel-coated insulating varnish, the requirements for mechanical, electrical, heat-resistant and chemical resistance of the enamel-coated insulating varnish are also different. However, it is required to maintain its original performance under the conditions of long-term moisture, heat, mechanical operation and chemical attack. Therefore, the basic requirements of the enameled wire insulation paint varnish water can meet the heat resistance, impact resistance, softening breakdown and oil resistance, and also have high mechanical strength, anti-refrigerant and impregnated insulating varnish compatibility.
Enameled wire is generally divided into several types: E, B grade insulating enamel wire lacquer; generally used three types of acetal, polyurethane, polyester; also a small amount of oil paint, alkyd paint, epoxy paint used in enameled wire.
The main varieties of F/H grade enameled wire lacquer: polyurethane, polyamideimide, and polyimide are developed rapidly in Europe and America. Low-pollution enamelled wire lacquer is the current research direction.
2, 
Impregnated insulating varnish varnish: In order to enhance the electrical insulation performance and mechanical strength of the motor winding or electrical coil, improve the thermal conductivity and make it have good moisture resistance, acid and alkali resistance, solvent resistance, corona resistance, mold resistance, winding The coil must be immersed and insulated, and then solidified at a certain temperature. The density of the film layer after curing, the loss of paint during baking, the amount of paint lacquered in the winding, and the stability of the lacquer are all resistant to heat. Both sex and electrical performance can have a major impact.
Commonly used impregnating insulating varnishes are generally divided into: E/B grade impregnating insulating varnish; mainly using amino alkyd resin varnish, epoxy resin lacquer, solventless epoxy lacquer. F/H grade impregnating varnish; generally used for traction motors, high voltage motors, freeze-resistant motors, etc. Matching high temperature insulating varnish varnish is made of imine epoxy, phenolic impregnating varnish, silicone and unsaturated polyester.
3, 
Bonded insulating varnish: It is an important material for the main insulation of the motor (insulation of the stator coil) and slot insulation. It is mainly used for bonding mica, magnetic pole coil, film and other insulating materials. Currently, B/F grade adhesive lacquer is used, epoxy resin-based thermosetting resin and modified epoxy grease; Imide, polybenzimidazole high temperature adhesive for use in insulation systems requiring high temperature resistance.
4,
Covering paint: It is mainly used for impregnating wire package windings to prevent the mechanical damage, atmospheric influence and so on. The cover paint is usually used as a color paint to improve the appearance and color. Covering varnishes are generally self-drying and have a small amount of special requirements for drying. More commonly used are synthetic alkyd resins, epoxy resins and silicone resins. Among them, anti-corona paint is also a kind of cover paint, which has special effects on motor anti-halation, so it is used more.
5,
Silicon steel sheet insulation Fan Lishui: Silicon steel sheet insulation paint Fan Lishui is used to coat the surface of silicon steel sheet with oil resistance, anti-fouling, and prevent vortex flow and edge thickening effect after the silicon steel sheet stack. Generally, phenolic resin paint, alkyd resin paint and modified epoxy phenolic resin paint are used, and the self-drying type and quick-drying type insulating varnish water are popularized.
6,
Electronic communication components insulation paint Fan Lishui: Telecommunication components insulation paint Fan Lishui is mainly used for resistance, temperature, moisture, insulation, electrical performance, stability and mechanical strength of resistors, capacitors, potentiometers and other components.
The above information is provided by “Anfeili Technology Co., Ltd. (Hangzhou Office)â€, and I hope to have some help for friends in this industry. At present, the insulating resin lacquer is mainly imported from abroad. I sincerely hope that the colleagues in the domestic R&D class will break the backward thinking that can be used, available, and safe. At the same time, I wish China's insulation technology is booming and develop Chinese people. Its high-tech insulating resin paint replaces the dependence of imports. We are willing to work together with friends from all walks of life to create a better future; welcome friends from all walks of life to visit our website http:// "Hangzhou Anfeili Technology Co., Ltd." for exchange of ideas.
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