A copper pipe roller bottom type continuous bright annealing furnace

Abstract

The invention relates to a continuously bright annealing furnace with copper pipe roller hearth type which includes an inlet and an outlet air locking chambers, a feeding and an unloading roller, a heating furnace and a cooling chamber; a fan, a cold pressing groove, a cold pressing pipe and a heat exchanger are arranged out of the cooling chamber at the severe cold section, while a plurality of gas pipes opposite spraying up and down are arranged in the cooling chamber; the inlet of the heat exchanger is connected to a cavity chamber of the cooling chamber of the severe cold section, while the outlet of the heat exchanger is connected with the inlet of the cold pressing groove; the fan is mounted on the cold pressing groove; the outlet of the cold pressing groove is connected with the cold pressing pipe; the outlet of the cold pressing pipe is connected with a cold pressing guide groove; the cold pressing guide groove is connected with the gas pipes opposite spraying up and down; a plurality of upper spray nozzles are spreaded on the upper horizontal section of each gas pipe, and a plurality of lower spray nozzles are spreaded on the lower horizontal section of each gas pipe; the nozzle mouths of the upper and the nozzle mouths of the lower spray are arranged oppositely. The annealing furnace of the invention has fast cooling speed and high evenness, is applicable in the continuous annealing technology treatment of a large number of copper pipes with different length, diameter and wall thickness.

Description

technical field [0001] The invention relates to an annealing furnace for processing non-ferrous metal materials, in particular to a continuous bright annealing furnace of a copper tube (disc) roller bottom type, which belongs to the technical field of heat treatment equipment. Background technique [0002] In the non-ferrous metal material processing industry, the temperature of the copper tube during bright annealing in the annealing furnace under the protective atmosphere reaches about 900°C. Before being released from the furnace, it must be cooled to below 50°C with the participation of the protective gas in the furnace, otherwise the surface of the tube will be easily oxidized after being released from the furnace. Discoloration. There are two types of traditional copper tube bright annealing furnace cooling devices: one is the external cooling type of the furnace, that is, the copper tube is installed in the annealing furnace that is sealed and has a protective gas, an...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a copper tube roller hearth continuous bright annealing furnace. The cooling speed and cooling uniformity make it suitable for continuous bright annealing of copper tubes with different length specifications and different diameters and wall thicknesses

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