MANUFACTURING METHOD OF METAL PIPE WITH INNER ANTI-CORROSION COATING

摘要

FIELD: machine building. ^ SUBSTANCE: anti-corrosion coating is applied to inner pipe surface, bushes made from corrosion-resistant metal and having on outer surface the sealing layers in the form of elastic coating are installed inside ends of pipe with covering some part of coating and bushes are fixed by their expansion till they tightly touch inner pipe surface. Sealing layer can be made from elastic polymer material. ^ EFFECT: reducing labour intensity of production and reducing the cost of products. ^ 6 cl, 3 dwg