COATING METHOD OF EPOXY COATING COMPOSITION OF WATER SUPPLY PIPELINES AND COATING WATER SUPPLY PIPELINES

摘要

The present invention relates to a coating method of epoxy coating composition on water supply pipelines, which comprises a step of holding pipelines at the upper part of a rotary base in the longitudinal direction; a step of installing a cable passing through the pipelines with tension on cable installation stands on both sides of the rotary base; a step of forming an adhesive layer by spraying a rapid-drying adhesive in the inner surface of the pipelines by a driving spraying device moving on the cable; and a step of coating an epoxy coating composition right after coating the rapid-drying adhesive by continuously spraying. The coating method of an epoxy coating composition on water supply pipelines of the present invention performs coating by spraying a rapid-drying adhesive and an epoxy coating composition in the inner surface of the pipelines while the driving spraying device reciprocally moves riding on the cable installed with tension to pass through the pipelines, and therefore, enhances the durability and the lifetime of the pipelines by improving the adhesion of the epoxy coating composition coated on the inner surface of the water supply pipelines. Furthermore, the coating method of an epoxy coating composition on water supply pipelines of the present invention is able to minimize the working space of a coating factory performing coating work, and to simplify the facilities, thereby facilitating operations.