METHOD FOR PRODUCTION OF SELECTIVE ISOLATED FILTER

摘要

A method of manufacturing a selective isolation screen includes steps of preparing for a tubular screen (2) provided with spacer members (4) and a wire (5) on a base member (3), and supplying sealing material from a sealing material supply device (6) which supplies sealing material at a location where sealing is required on the tubular screen while rotating the sealing material supply device relative to the tubular screen thereby filling the annulus between the spacer members which are adjacent to each other in the circumferential deirection to form seal means (7). Difficulty in welding can thereby be avoided and location and state of mounting of sleeves can be visually checked.