Coating general knowledge: application of high temperature resistant coating and high temperature resistant insulating paint

Core tip: high temperature resistant insulating paint for motor The problem of what kind of insulating paint is used for motors is actually a little complicated What is commonly written on the network is "motor insulating paint, motor high temperature resistant insulating paint, motor class H insulating paint", etc.; I just don't know which type of insulating paint is the one I need How can I choose the insulating paint I need correctly, let alone high temperature resistant insulating paint The information on the network is a kind of sales effect term of the seller, which is generally not very professional Few of the salesmen really understand the technical specialty What they want is the effect of the network Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: what kind of insulating paint is used for high temperature resistant insulating paint of motors? This problem is actually a little complicated What is written on the network is "motor insulating paint, motor high temperature resistant insulating paint, motor H-class insulating paint", etc; I just don't know which one is the insulating paint I need How can I choose the insulating paint I need correctly, let alone the high temperature resistant insulating paint The information on the network is a kind of sales effect term for the seller Generally, it is not very professional Few people who do sales really know the technical specialty What they want is the effect of network capture and relative exposure rate Others are not important I'll give you a brief introduction of this knowledge, hoping to give you some help The right choice of insulating paint for motors is fanlishui First of all, we need to know how big our motors are The small ones are as big as a finger, and the big ones are as big as a house What we see is the motors with a height of 15cm-40cm and 50cm Knowing its size, it is much more convenient to choose insulating paint 1 For the motor with big finger to the motor with a height of more than ten centimeters (i.e fist size), choose to use solvent based insulating paint These motors are generally used in toys, fans, fans and so on So the solvent type insulating paint seen on the network has also written motor insulating paint, which is roughly the meaning General method of impregnation; that is, general vacuum impregnation I would like to recommend to you some high-end solvent type insulating paint commonly used in China; BC-359 low-temperature treatment insulating paint versish; advantages; temperature resistant class h, easy to use, good electrical performance, low-temperature baking treatment of 110 ℃ curing, suitable for various electrical components impregnation and various coil winding impregnation, widely used in high-frequency transformers Disadvantages: the price is relatively higher than that of domestic fanlishui Bc-346-a high-temperature treatment of versicolor; advantages; high temperature resistance, H-class, easy to use process, especially suitable for motor impregnation, high electrical performance, in the same industry is a legend of H-class insulating paint, in front of the market there is no insulating paint can replace its special effects Disadvantages: the baking temperature is high, which has certain damage to the non high temperature resistant components on some devices T-598 small motor insulating paint (fanlishui); features: fast drying, good fluidity, strong permeability, good adhesion, stable electrical performance, simple operation, good moisture-proof and corrosion resistance, good compatibility, especially the price is economic (23 yuan / L) Disadvantages: heat resistance is not too high (class B-F) Fs-1380 room temperature self drying insulation water; features: simple operation, fast drying, and can be dried or self drying at room temperature, good compatibility, high adhesion, moisture and corrosion resistance Disadvantages: heat resistant class F, light solid content, only suitable for low-frequency electrical use 2 Popular motor insulating paint: the motors from ten centimeters high to tens of centimeters high are generally impregnated with solvent-free insulating paint, which is the insulating paint, which is applied to the impregnation of motor stator winding (VPI impregnation and vacuum impregnation); also called vacuum impregnation, VPI impregnation, motor impregnation insulating paint and other professional terms The solventless impregnating varnish has the characteristics of low odor, high solid content, low volatile matter, strong penetration, good adhesion and so on The enameled wire winding can be connected into a whole through impregnation, which is also called imitated whole It has the functions of compression resistance, shockproof, stable and high mechanical stability under high-strength electric shock, etc 3 Super large motor insulation paint; like the large motor coil winding, the impregnation equipment of the manufacturer is not so large, and the potting insulation treatment is generally used For example, the price of fengluo's 13522 potting glue 13500 potting glue is 110-120 pieces per kilogram, and its performance is fair; they also have high permeability, super adhesion, superior electrical performance, unusual toughness and quick drying, etc The cb-1109 special potting adhesive and cb-1078 special potting adhesive of dolphon in the United States have different properties; flexibility - from - 70 ℃ to heat-resistant and high 200 ° C, low loss, excellent pressure resistance and thermal shock resistance They have passed more than 30 cycles (Olyphant gasket test), excellent room temperature curing performance, excellent adhesion property and excellent electrical performance, The smallest change in the entire temperature range of flexible free deployment, low temperature flexible treatment, excellent chemical and wear resistance, resistance to degreaser solvent and so on The above several potting adhesives are the best insulation potting adhesives in the market 4 Why it's called insulating varnish: we often see the words "insulating varnish" and "insulating varnish" in the insulating varnish of motors Actually, insulating varnish is also called "insulating varnish" We generally call it "insulating varnish" Our compatriots in Hong Kong, Macao and Taiwan call it "insulating oil" The function of insulating varnish is to wrap the conductive material so that it can stick together without conducting each other, so that it can be connected into a imitative whole through insulating varnish impregnation, and has the functions of shockproof, moisture-proof, corrosion-proof, compression resistance, mechanical stability and so on 2、 The high-temperature resistant insulating paint for motor is "high-temperature resistant" insulating paint for motor The so-called high-temperature resistance is higher than the general temperature, which can be called high temperature In the existing electronic industry, the temperature limit grade is y-class 90 ℃, A-class 105 ℃, E-class 120 ℃, B-class 130 ℃, F-class 155 ℃, H-class 180 ℃, C-class 200 ℃ High temperature resistant insulating paint is generally referred to as high temperature resistant insulating paint from F-class above 155 ℃, because the requirements of electronic heat resistance are getting higher and higher, and the application field is also expanding At present, the high temperature resistant insulating paint for motor is H-class 180 ℃ as the benchmark, and then up there are a few C-class 200 ℃ insulating paint for motor Of course, there are a few special requirements of 220 degree and 240 degree insulating paint for motors, which are used for motors with special requirements The price and use conditions are certain requirements Some people will say that I have seen the purchase of 500 ℃ insulating paint and 1000 ℃ insulating paint on the Internet I am temporarily silent on this issue, but the insulating paint that can be used on the motor winding coil is not so high temperature, and the impregnating paint that can be used on the motor winding coil is generally organic, and the organic impregnating resin has not yet been able to withstand such high temperature, which is too high The temperature is generally inorganic, and the inorganic can be used on the motor winding is just an imposed illusion For example, ceramic paint is cured at 1000 ℃ and 2000 ℃, which should be two concepts with motor insulating paint 3、 How to choose the insulating paint of high temperature resistant motor? Firstly, we need to know the insulation level of the motor itself, for example: the motor itself is a class B insulation system; then we have to choose class F when choosing the insulating paint of the motor, so as to avoid the damage of the insulation system caused by the temperature rise of the motor caused by the excessive current and the heavy load of the motor In the selection of high temperature resistant insulating varnish for motors, I recommend my personal opinion In the selection of popular impregnated varnish for motors, we should choose solventless impregnated varnish or less solvent impregnated varnish The less solvent impregnated varnish is an upgrade version of solventless impregnated varnish, and the less solvent impregnated varnish has more hanging capacity than solventless varnish What they have in common: more paint, low odor, low volatility, fast drying, strong penetration, high heat resistance, easy operation, all impregnation processes completed at one time and so on The general direction of selecting motor impregnating paint has been made clear Solvent-free impregnating paint or less solvent impregnating paint should be selected Next, we just need to consider its heat resistance If the motor insulation system itself is a class F insulation system, then when we choose the high temperature resistant insulating paint, we can choose the high temperature resistant class H insulating paint Some people think that as long as the insulating paint with solvent is solvent type insulating paint, this statement is not correct No matter what kind of paint, there must be thinner (diluent, also known as solvent), and the water-based insulating paint will be added with water The function of diluent is to adjust viscosity, and others have no effect You only need to pay attention to its solid content, heat resistance and other required indicators when choosing impregnating paint If you want high environmental protection, you can choose water-based insulating paint There is no absolute environmental protection There is no absolute environmental protection insulating paint at home or around the world, only the relative environmental protection I would like to recommend you several domestic high-end high-temperature resistant insulating paints; solventless or less solvent varnish; American dolphin series high-temperature resistant insulating paint varnish cc-1096 Its advantages are: low temperature rapid curing, super adhesion, ul180 ℃ certification, super permeability, low viscosity, easy and fast operation, flexible use, etc Disadvantages: short shelf life (6 months), two-component, active diluent, strong taste Cc-1105 solventless impregnated insulating varnish versicolor; advantages: high flash point, high solid content, good permeability, high heat resistance, freon resistant R134a / r123a, can be used for immersion, roll immersion, drop immersion, vacuum impregnation and VPI impregnation, can be used for sealing motor impregnation, low odor, low volatility, wide use, etc Disadvantages: high baking temperature (over 130 / 150 ℃) Cc-1305 less solvent impregnated insulating varnish versicolor; advantages; flexible use, high solid content, high heat resistance (220 ℃), good compatibility, can be used for immersion, roll immersion, drop immersion, vacuum immersion and VPI immersion, low odor, low volatility, more paint hanging, etc Disadvantages: the price is on the high side Bc-365 water-based insulating paint; advantages: environmental protection, high temperature resistance, using water as diluent, high adhesion, good permeability, flexible and convenient use, applicable to a wide price economy (30 pieces / kg), etc Disadvantages: baking must be cut to the bottom, customers must have a certain amount to get a lower price Fengluo vonroll series 3042 high temperature resistant insulating paint Vaseline; advantages; single component, high heat resistance (200 ℃), wide use, simple and flexible use, stability