Powder coating applications are increasingly being used , there are appliances, metal furniture , automotive , mechanical and electrical products, electronic components, piping , architectural hardware, aluminum , radiators and so on.
This year the newly developed technology research and development of various temperatures show temperature powder coating has been successfully applied to the radiator, not only its beautiful decoration, but also as a winter heat sink temperature indicator is a function of temperature indication of special powder coatings.
Illustrates the principle of showing temperature powder coating temperature
The basic components of the powder coating temperature is shown as: color pigments , polymer -based material, other fillers . Where color pigments are shown by major component temperature powder coating color change temperature , the temperature of the core showing the paint . If appropriate, the number of organic dyes and inorganic salts can be used as color pigments , but the temperature required for the powder coating material must be resistant to high temperature 200 ℃ was not decomposed , so this may be a need for color pigments screening to ensure coating temperature resistance layer. Generally shows the temperature approaches the temperature materials are shown :
a, caused by the temperature of the phase change material , resulting in a color change .
b, caused by temperature changes in the molecular arrangement of the material , resulting in a color change .Wholesale masking tape
c, raw materials caused by the temperature electron transfer in organic compounds , resulting in a color change.
Shows the temperature powder coating general requirements : room temperature to a color , is heated to a certain temperature, the color becomes b , c reheating turned into color , etc., and can be repeated many times discoloration, not failure , is a reversible color change , eventually return b color , a color, according to the ratio of variable temperature characteristics of the pigment and pigment formulations can tune into a variety of colors , usually in -20 ℃ -200 ℃ temperature change range display a variety of different hues .
Performance testing shows the temperature powder coating
Shows the temperature on the performance of powder coatings and powder the same general performance testing , chemical and mechanical properties are in line with national standards. Conduct its color alternating hot and cold performance tests up to 2000 times without any change in the surface , and the color is still sensitive to the basic color temperature is the temperature reaches that will instantly change color , indicating that the temperature of the powder coating is shown with unlimited repeatability, unlimited color is reversible .
Shows the temperature powder coating significance and prospects of the radiator
Shows the temperature powder coating can display the current temperature of the radiator , radiator winter temperatures are generally in 50,60 ℃ or more, while showing temperature powder coating can be made in different colors at -20-200 ℃, my company after the temperature resistance of the pigment screening, elect several high temperature paint , its thermal resistance between the variable temperature 40-70 ℃, the temperature range of radiators have a good value. Assuming a temperature corresponding to a color , then ( of course, we can use this color pigments into a variety of different colors ) , you can use 50 ℃ or 70 ℃ temperature change powder coating , if the color of the radiator is kept at 50 ℃ constant color , indicating the temperature of the heat sink of about 50 ℃, if the color is between 50 ℃ and 70 ℃ between the temperature of the heat sink can be described at about 60 ℃, if the color is displayed as 70 ℃ , the Description of the radiator temperature is 70 ℃, then the heat sink temperature is too high, we can adjust the temperature of the heat sink through the water .
Shows the temperature powder coating not only beautiful and elegant decor , and there is a certain degree of functionality , you can visually display the correct temperature radiator for us , there are a lot of space in the future to promote the development of the radiator has great practical significance !Masking tape
Thermopaint powder coating methods and precautions on the radiator
Shows the temperature powder coating methods and ordinary radiator same powder coating , pre-treatment of the radiator must be qualified testing ; sanitation spray area must be clean, not cross-contamination ; shows temperature powder coating should be kept dry , use and storage process to prevent the powder from moisture , or easy to make the radiator surface bubbles, craters and pinholes ; recovery powder and recycled as ordinary flour , mixed spray, does not affect the extraction rate on the secondary .Washi tape
Baking furnace gas temperature has to show some effect powder curing oven tunnel furnace or whether it is a fixed furnace , there are problems in the furnace gas emissions. The reason is that the powder coating composition by a variety of chemical substances , and the coating by chemical reaction at a high temperature furnace , a large amount of gas . These gases are discharged if not , it will cause the furnace powder coating pinholes and loss of light and other phenomena, but also shows the temperature may destroy the chemical structure of organic pigment powder , it must be in place one to two rows high pores. Also, try not to spray the same furnace other different colors , different varieties of powder coatings to prevent mutual interference , affect the coating color , gloss and cross-contamination .
When the tube is removed from the oven when the color will remain the color temperature , when the temperature of the tube gradually decreased , the color will change as the temperature drops , this variable temperature range of pigment to decide what temperature display what color .Sellotape
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