Aluminum alloy pipe cycle annealing treatment equipment furnace

Abstract

The invention discloses an aluminum alloy pipe cycle annealing treatment equipment furnace comprising at least two annealing furnace bodies placed in a heat preservation foundation inner groove parallelly side by side. Penetrable temperature measuring probes are arranged on the two sides of the tops of annealing furnace body covers. The interiors of the annealing furnace bodies are uniformly layered, and aluminum alloy pipe plates are annularly placed in the layers correspondingly. A furnace partitioning wall is fixedly laid in the position, perpendicular to the bottom of the heat preservation foundation, between every two adjacent annealing furnace bodies. Two-way air pumps are mounted on the tops of the furnace partitioning walls through fixed bottom plates and matched with air pump motors. The two ends of the two-way air pumps are connected with the annealing furnace bodies through the air pump connectors, pipe connectors in threaded connection with the air pump connectors and thread pipes in threaded connection with the pipe connectors. The other ends of the thread pipes penetrate through heat preservation furnace liners to be connected to the interiors of the annealing furnace bodies. Ordered working and positive and negative working of the two-way air pump are achieved through a simple and effective electrical control circuit (a time relay), so that cycling and reutilization of high temperature nitrogen are achieved when the annealing nitrogen is cyclically heated and subjected to heat preservation in the annealing furnace bodies, and electric heating energy sources used in annealing are saved effectively.

Description

technical field [0001] The design of the invention belongs to the technical field of pipe material heat treatment, and in particular relates to a furnace for circulating annealing treatment equipment for aluminum alloy pipes. Background technique [0002] In the manufacture of aluminum alloy tubes, the final heat treatment process is usually a nitrogen annealing furnace heat preservation operation to reduce the remaining residual stress and structural instability in the aluminum alloy tube. When the existing annealing furnace is in use, it is basically an annealing heating, and the high-temperature gas in the furnace is cooled and discharged directly. Therefore, such aluminum alloy heat treatment equipment has problems such as high energy consumption and high pollution, which causes energy consumption. a great waste. Therefore, it is necessary to develop an intelligent energy-saving and environment-friendly circulating annealing furnace to meet the requirements of industria...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the existing annealing furnaces, the object of the present invention is to provide a cyclic annealing furnace for aluminum alloy tubes, which can not only eliminate defects such as internal residual stress and uneven structure of aluminum alloy tube coils during annealing, but also It can adapt to the requirements of energy saving and environmental protection, and realize the recycling and reuse of high-temperature heat-retaining nitrogen inside several annealing furnaces

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