{"id":16195,"date":"2020-04-14T13:06:37","date_gmt":"2020-04-14T13:06:37","guid":{"rendered":"https:\/\/smartline.in.ua\/?p=16195"},"modified":"2021-07-12T13:24:13","modified_gmt":"2021-07-12T13:24:13","slug":"protsess-zaryada-poroshkovoy-kraski-v-pole-koronnogo-razryada","status":"publish","type":"post","link":"https:\/\/smartline.in.ua\/en\/powder-paint-charging-process-in-a-corona-discharge-field\/","title":{"rendered":"Powder paint charging process in a corona discharge field"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">In order to charge the powder paint in a corona-charged field, a high electric field between the spray gun and the painted item is must, and latter it should be grounded.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Thanks to this, the space between the gun and the item charges with ions (charged air molecules) which attach to the powder, charging it.<\/span><\/p>\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"949\" height=\"513\" class=\"wp-image-16196\" src=\"https:\/\/smartline.in.ua\/wp-content\/uploads\/2020\/04\/Poroshkovaya-pokraska.jpg\" alt=\"\" srcset=\"https:\/\/smartline.in.ua\/wp-content\/uploads\/2020\/04\/Poroshkovaya-pokraska.jpg 949w, https:\/\/smartline.in.ua\/wp-content\/uploads\/2020\/04\/Poroshkovaya-pokraska-300x162.jpg 300w, https:\/\/smartline.in.ua\/wp-content\/uploads\/2020\/04\/Poroshkovaya-pokraska-768x415.jpg 768w, https:\/\/smartline.in.ua\/wp-content\/uploads\/2020\/04\/Poroshkovaya-pokraska-600x324.jpg 600w\" sizes=\"(max-width: 949px) 100vw, 949px\" \/><\/figure>\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n<p><span style=\"font-weight: 400;\">At the same time, part of the air molecules remains free and does not attach to the powder particles. These free particles will follow the line of the electric field and flow towards the colored product at a speed that exceeds the speed of particles with powder.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">But if the surface of the part has a negative dielectric susceptibility, then the charge of air molecules simply flows down to the ground without taking part in the painting process.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">The free flowing properties of the ions are reduced during the powder coating process. So, a shaped charge is formed on the coating.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Reverse ionization often occurs due to charge accumulation. As a result, this leads to a deterioration of powder particles desublimation and to a deterioration in the quality of the coating.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">The dielectric susceptibility reduces If the product has dirt or old layers of paint.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Also, it is important to mention the peculiarity of the &#8220;corona charg<\/span><span style=\"font-weight: 400;\">e&#8221;, that is the Faraday cage. A Faraday cage <\/span><span style=\"font-weight: 400;\">is a defect that appears when powder coating is applied to <\/span><span style=\"font-weight: 400;\">arduous<\/span><span style=\"font-weight: 400;\"> places: grooves, corn<\/span><span style=\"font-weight: 400;\">ers, recess, ledges &#8211; e<\/span><span style=\"font-weight: 400;\">verywhere where the external electric field does not penetrate.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">It makes applying a uniformal paint layer difficult and sometimes impossible.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Therefore, in order to apply powder paint correctly and successfully to <\/span><span style=\"font-weight: 400;\">arduous<\/span><span style=\"font-weight: 400;\"> areas, you need to use the following:<\/span><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">well charged powder;<\/span><\/li>\r\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">optimal flow rate for the powder to fly into the cavity;<\/span><\/li>\r\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">the external electric field must be controlled to reduce the pushing of powder particles towards the edges of the Faraday cage.<\/span><\/li>\r\n<\/ul>\r\n<p><span style=\"font-weight: 400;\">And also use the right technique to make this whole process easier.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>In order to charge the powder paint in a corona-charged field, a high electric field between the spray gun and&#8230;<\/p>\n","protected":false},"author":1,"featured_media":16293,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/posts\/16195"}],"collection":[{"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/comments?post=16195"}],"version-history":[{"count":4,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/posts\/16195\/revisions"}],"predecessor-version":[{"id":17724,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/posts\/16195\/revisions\/17724"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/media\/16293"}],"wp:attachment":[{"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/media?parent=16195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/categories?post=16195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartline.in.ua\/en\/wp-json\/wp\/v2\/tags?post=16195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}