Treatment process for titanium condensation pipe used for distillation cooling device

The invention discloses a treatment process for a titanium condensation pipe used for a distillation cooling device. Hot-dip galvanizing treatment, zinc drainage treatment, cooling treatment, internal blowing treatment and passivation treatment are conducted on a titanium alloy cogging pipe. In zinc...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN DAOXIANG, LI MINGXIANG, ZHU DONGHONG
Format:	Patent
Sprache:	eng
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS 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 FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a treatment process for a titanium condensation pipe used for a distillation cooling device. Hot-dip galvanizing treatment, zinc drainage treatment, cooling treatment, internal blowing treatment and passivation treatment are conducted on a titanium alloy cogging pipe. In zinc drainage treatment, the hot-dip galvanized cogging pipe is obliquely placed, the inclination angle ranges from 45 degrees to 60 degrees, molten zinc flowing internally and externally is drained to a zinc bath and contained for 3 to 5 minutes, the inner portion and the outer portion of the hot-dip galvanized cogging pipe are cooled to the temperature from 120 DEG C to 200 DEG C, and zinc-iron alloy layers are generated on the inner surface and the outer surface. By the adoption of the treatment process for the titanium condensation pipe used for the distillation cooling device, due to the fact that composite films of phosphate, titanium salt and organosilicone modified epoxy resin can be formed on the hot-dip galvanized surfaces through the after-treatment technology, the technological process can be obviously shortened, preparation efficiency is improved, energy is saved, and the yield is improved. The titanium condensation pipe used for the distillation cooling device has the excellent corrosion resistance.