For polyurea, three points polyurea, seven points spraying, polyurea construction has a great impact on the effect of polyurea, is the so-called: "work to do its job, must first benefit its device", polyurea spraying equipment itself maintenance is very important, do you know what precautions polyurea spraying equipment maintenance? 1, the use of various filters for a period of time, because the filter surface is stained with dust, so that the efficiency and viscosity of the filter is reduced, affecting the cleanliness of the air, which requires timely replacement of the filter. There are also some commonly used parts that often need to be replaced to prepare some goods, and damage can be replaced immediately. 2, polyurea equipment is not used in A short time, there is no need to clean with solvent, let the equipment work for 5-10 minutes A month (to insert the A material extraction pump in the remaining A material bucket), and then shut down normally, you can continue to save for one month. 3. When the polyurea spraying machine equipment is not in the working state for A long time, in order to prevent the crystallization, solidification and deterioration of the A, R material VAT and the pumping pump from contacting the humid air, it is necessary to remove the A and R material pump from the 200L VAT and insert it into the protective sleeve equipped with cleaning agent, and fill the A and R material barrel into nitrogen storage. Turn off the main engine, but turn off the air compressor and the A and R feed ball valves. 4. In normal operation, after DOP lotion is used to finish the raw materials in the tube during construction (experiment), DOP shall be used to carry out circulating cleaning, and the residual liquid shall be sealed in the material delivery tube after cleaning. During cyclic cleaning, the washing liquid is 20kg and the pressure is 3 ~ 5MPa for 30min, divided into 3 times. Cover with machine protective net cover and store in fixed warehouse.
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