PROCESS OF CHEMICAL AND THERMAL TREATMENT OF INTERNAL SURFACES OF PIPES IN MELT OF CYANATES AND GEAR FOR ITS IMPLEMENTATION

chemical and thermal treatment of pipes. SUBSTANCE: process of chemical and thermal treatment of internal surfaces of pipes consists in placement of pipe into bath with melt of cyanates preheated to 200-250 C by means of external source and in keeping it under high-temperature tampering with constan...

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Bibliographische Detailangaben
Hauptverfasser:	KLIMOV V.P, GUSEVA M.A, KOZLOVSKIJ A.M, FEDORIN V.R
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	chemical and thermal treatment of pipes. SUBSTANCE: process of chemical and thermal treatment of internal surfaces of pipes consists in placement of pipe into bath with melt of cyanates preheated to 200-250 C by means of external source and in keeping it under high-temperature tampering with constant blow-through of melt with oxidizing gas and circulation of melt through space of pipe. Gear for implementation of process has electric muffle furnace and two furnaces-baths to melt cyanates mounted on rocking platform for interconnection by system of communicating vessels with the aid of treated pipe. EFFECT: decreased usage of metal and electric energy, improved uniformity of treatment of pipe over its length with carbonization of internal surface. 2 cl, 1 dwg