PACKING COATING METHOD OF MANHOLE COVER

摘要

PURPOSE: A coating method of a packing to a manhole cover is provided to prevent the separation of a manhole cover from a manhole frame and to prevent the corrosion caused by the counter flow of noise, gas and waste water. CONSTITUTION: The coating method of a packing to a manhole cover(10) comprises the steps of: manufacturing a manhole cover(10) and a manhole frame(30) to remove surface impurities; applying adhesives(40) to the lower side and the outside of the manhole cover(10), then pressing a buffer sheet(20') of synthetic resins; placing the manhole cover(10) adhered with a buffer sheet(20') of synthetic resins in a steam vulcanizing tube(50), then heating and pressurizing; and grinding the manhole cover(10) provided with a packing by a grinder(60).