Continuous removal of organic coating, e.g. resin, from steel pipe - involves heating pipe with a medium frequency induction coil and burning off to remove coating completely without thermally degrading steel

• Main Authors: REINEKING, KLAUS-JUERGEN., 4330 MUELHEIM, DE, HOFMANN, GEORG., 4000 DUESSELDORF, DE, FOERSTER, HERBERT., 4000 DUESSELDORF, DE
• Format: Patent
• Language: English; German
• Published: 24.02.1994
• Edition: 5
• Subjects: CLEANING; CLEANING IN GENERAL; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PREVENTION OF FOULING IN GENERAL; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An organic coating on hollow metal bodies, esp. steel pipes, is removed where they have an epoxy undercoat and an ethylene-copolymer to coat, and the surface is cleaned off mechanically for renewed application of the organic coating. The metal wall is uniformly heated to at least 200 deg.C but max....