Coating technology: a spraying method of high temperature resistant insulating liquid coating

Core tip: the high temperature resistant insulating liquid coating is composed of insulating resin, diluent and filler The insulating resin and diluent are mixed evenly according to the viscosity value of the coating, 2cp-6cp The coating is applied according to the steps of surface treatment, preheating, coating blending, rotary coating, false burning, burning, testing and so on The high temperature resistant insulating liquid coating has both high temperature resistance and insulation effect, and the product surface sprayed with the coating can be well protected Follow these steps: 1) Surface treatment of products to be sprayed; 2) Preheating of spraying products: pre heating of products to be sprayed Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coating home news: high temperature resistant insulating liquid coating is composed of insulating resin, diluent and filler The insulating resin and diluent are mixed evenly according to the viscosity value of the coating, 2cp-6cp; the coating is applied according to the steps of surface treatment, preheating, blending, coating recycling, false burning, burning and testing of the products to be sprayed The high temperature resistant insulating liquid coating has both high temperature resistance and insulation effect, and the product surface sprayed with the coating can be well protected The following steps shall be followed: 1) surface treatment of products to be sprayed; 2) preheating of products to be sprayed: preheat the products to be sprayed, the preheating temperature shall be controlled at 150 ‑ 180 ℃, the preheating time shall be 5 ‑ 15 minutes, and put them into the coating basket after preheating; 3) coating blending: insulating resin, diluent and filler shall be 2cp according to the viscosity value of the coating according to the set viscosity standard The mixture of ‑ 6cp is uniform; a) the insulating resin is composed of the following components by weight percentage: amide ‑ imide resin 30% ‑ 50%, n ‑ methanol ‑ 2 ‑ pyrrolidone 40% ‑ 60%, color masterbatch 5 ‑ 10%; b) the diluent is composed of the following components by weight percentage: ethyl acetate 40 ‑ 50%, butanone 10 ‑ 20%, pyrrolidone 30 ‑ 50%; c) The filler is polytetrafluoroethylene, the dosage is 1 ‑ 3% of the total weight of insulating resin and diluent; 4) rotary coating: set the spraying air pressure as 0.2 ‑ 0.4MPa, spraying time as 10 ‑ 30min, spraying amount as 2.3 ‑ 2.5g/min, put quartz ball with particle size of 1.5 ‑ 2.0mm into the coating basket with the products to be sprayed, and the rotation speed of coating basket is 11 12 seconds / circle, rotate the products to be sprayed, and heat the air duct to heat the products to be sprayed at the same time; 5) false burning: after the completion of rotating coating, perform false burning for the products to be sprayed, the temperature of false burning is 150 ‑ 180 ℃, and the time of false burning is 5 ‑ 15 minutes, measure the thickness of the coating film, and decide whether to repeat the fourth step according to the set thickness of the coating film; 6) Burn: if the film thickness reaches the set value, burn the products to be sprayed The temperature of the burn is 200 ‑ 250 ℃, and the time is 30 ‑ 40 minutes 7) test: test the products to be sprayed according to the set insulation compression value and the coating appearance dimension standard, and the products to be sprayed are qualified Compared with the existing coating process, the spraying process can greatly save the time of placing parts one by one, reduce the investment cost of the electrophoresis coating equipment, and greatly improve the production efficiency The existing electrophoretic coating process requires 15 people to paint 200000 parts a day, but the coating plus the coating process only needs 2 people to paint 450000 parts a day Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,