H series tungsten halogen lamp inorganic paint and method for producing same

Abstract

The invention discloses an inorganic coating for H series tungsten halogen lamps and its production process, which is characterized in that it is made of the following raw materials by weight: 20-28% water, 45-55% silicate solution with a concentration of 3.4 moulds. %, graphite, oxidized pigment 21-27%, soluble composite solvent 1-4%. The production process is as follows: first put the silicate solution, soluble composite solvent and water into the container, stir evenly, disperse naturally, emulsify and disperse, then precipitate and defoam; then add graphite and oxidized pigments into the container, stir first, and then pour Put it into a ball mill tank for ball milling; filter the solution obtained after ball milling, and divide the filtrate. The process of the invention is simple, and the produced paint has low price, good quality, convenient use, safety, environmental protection and no influence on human body.

Description

technical field [0001] The invention relates to a coating in the field of chemical industry, in particular to an inorganic light-shielding coating for a tungsten-halogen lamp and a production process thereof. Background technique [0002] The top of the H-type tungsten halogen lamps used for short-distance lighting of various motor vehicles usually needs to be coated with a layer of shading paint with high temperature resistance, strong adhesion, and tight covering. Completely dependent on imports, such as Germany's Osram, Holland's Phillip's composite coatings, etc. Although these coatings can play a shading effect, they have the following obvious defects: (1) benzene, esters, and alcohol organic solvents are used as raw materials in the production process, which are toxic, flammable, and harmful to health. There are safety hazards; (2) the cost is high, the cost of paint used for each tungsten-halogen lamp accounts for about one-tenth of the whole lamp, about 0.4 yuan, an...

AI Technical Summary

Problems solved by technology

Although these coatings can play a shading effect, they have the following obvious defects: (1) benzene, esters, and alcohol organic solvents are used as raw materials in the production process, which are toxic, flammable, and harmful to health. There are safety hazards; (2) the cost is high, the cost of paint used for each tungsten-halogen lamp accounts for about one-tenth of the whole lamp, about 0.4 yuan, and the market competitiveness is poor; (3) time-consuming and power-consuming when using paint, the product The pass rate is low. After dipping, it needs to be placed in an oven at about 200°C for 2-3 hours before the coating can be cured. The pass rate of one dip is less than 90%; It needs to be stored in the refrigerator, otherwise it is volatile and modified