Magnesium oxide thin film roll coating method
A magnesia, roller coating technology, applied in coating, device for coating liquid on surface, surface pretreatment, etc., can solve the problems of unsuitability for mass production, long production cycle of thermal spray method, complicated process flow, etc. Achieve the effect of high productivity, simple processing method and easy operation
Inactive Publication Date: 2019-02-01
BEIJING SHUGUANG AERO ELECTRICAL
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Problems solved by technology
However, the thermal spraying method has a long production cycle and complicated process flow, which is not suitable for mass production
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0027] Example 1, XXXX product 1J22 material punching sheet outer diameter ф160, roll-coated magnesium oxide film 10-20um.
[0028] (1) Pre-treatment of roll coating: clean the surface of the parts to ensure that the surface of the parts is oil-free and rust-free;
[0029] (2) Roll coating solution deployment: add 100ml / L water to the magnesium oxide coating solution with a concentration of 10%,
[0030] (3) Preheating of the roller coating solution: heat the roller coating solution to 85°C with an induction cooker, and keep it warm;
[0031] (4) Parts preheating: bake the parts in an oven at 170°C and keep warm for 15 minutes;
[0032] (5) Roller coating: roll coating with a roller coater, put the coating liquid into the liquid accumulation tank of the roller coater after preheating, and keep warm with an electromagnetic oven at the same time. When the temperature reaches 195°C, the time from entering the box to leaving the box is 25 seconds.
[0033] The slime cloth on th...
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The invention belongs to the technical field of surface treatment and relates to a magnesium oxide thin film roll coating method, in particular to a fast magnesium oxide thin film roll coating treatment process for 1J22 material punching sheets. The method for carrying out magnesium oxide thin film roll coating on the 1J22 material punching sheets comprises the steps of (1) carrying out roll coating pretreatment: cleaning the surface of a parts; (2) preparing a roll coating solution: adding 100ml / L of water into a magnesium oxide coating solution with the concentration being 10 percent; (3) preheating the roll coating solution: heating the roll coating solution to 80 to 90 DEG C through an induction cooker, and preserving heat; (4) preheating the parts: baking the parts in an oven at 170 DEG C, and preserving heat for 15 to 20min; and (5) roll coating: roll coating through a roll coating machine, putting the coating solution into a solution accumulation groove of the roll coating machine after preheating, and meanwhile, preserving heat through the induction cooker, wherein the length of a conveying tank of the roll coating machine is 18m, the temperature of the conveying tank of the rolling coating machine is risen to 190 to 200 DEG C, and the time for the process from feeding the parts to discharging the parts is 20 to 30 seconds. The method provided by the invention is simple, convenient to operate, high in productivity, and suitable for mass production of thin magnesium oxide films for 1J22 and other magnetically soft alloy materials.
Description
technical field [0001] The invention belongs to the technical field of surface treatment, and relates to a rolling coating method of magnesium oxide film, in particular to a processing technology problem of fast rolling coating of magnesium oxide film punched from 1J22 material. Background technique [0002] At present, the processing method of magnesia film coating on 1J22 material punching is thermal spraying method, which is 100% single-sided spraying of 1J22 material punching magnesia, or 50% double-sided spraying of magnesia on 1J22 material punching, single-side spraying The number of magnesium oxide spraying sheets is large and the spraying surface, burr surface or non-burr surface should be selected uniformly. It is not necessary to uniformly select the spraying surface for double-sided spraying of magnesium oxide, but it must be turned over and then sprayed when spraying. The coating liquid has temperature, and the surface temperature of the parts is above 120°C. T...
Claims
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IPC IPC(8): B05D7/24B05D3/02
CPCB05D3/0218B05D7/24
Inventor 李忠山毛玉龙李宇飞郑昭卓
Owner BEIJING SHUGUANG AERO ELECTRICAL