Copper pipe annealing system

Abstract

The invention relates to a copper pipe annealing system, and relates to the technical field of copper pipe machining equipment. The copper pipe annealing system comprises an annealing device, a nitrogen filling device which is arranged on a feeding side of the annealing device, a detection mechanism which is connected with the copper pipe and used for detecting the nitrogen filling state, and a driving part which is connected with the annealing device and drives the copper pipe penetrate through the nitrogen filling device and the annealing device, wherein the nitrogen filling device comprisesan air nozzle which is communicated with the copper pipe, an adjusting valve which is arranged on the air nozzle, an air conveying pipe which is communicated with the air nozzle, a nitrogen generatorwhich is communicated with the air conveying pipe and a sealing part which is connected with the air nozzle; and the detection mechanism comprises a detection part arranged at one end, far away fromthe nitrogen filling end, of the copper pipe. The copper pipe annealing system has the effects of detecting whether the copper pipe is full of nitrogen and accurately controlling the amount of nitrogen to improve the utilization rate of resources. The nitrogen overflows from the copper pipe and isolates oxygen outside a fire source, and then the flame is extinguished due to oxygen depletion, so that operators are reminded that nitrogen has filled the copper pipe and the waste of nitrogen is thus reduced.

Description

technical field [0001] The invention relates to the technical field of copper tube processing equipment, in particular to a copper tube annealing system. Background technique [0002] At present, annealing is a metal heat treatment process, which refers to the process of slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate speed. Copper tubes are generally produced by semi-continuous and continuous casting. Due to the fast cooling rate during the solidification process of this process, elements such as zinc and nickel in the copper tube will segregate. Ingots with compositional segregation are prone to cracking if they are directly press-worked. In addition, the ingot cools quickly, and there are quite serious internal stresses inside, which also aggravates the cracking tendency of the ingot during processing. Therefore, copper tubes are generally annealed to eliminate internal stress and improve the pl...

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: since the copper tubes used for online annealing are relatively long, more nitrogen gas needs to be fed in, and it is difficult to detect whether the nitrogen gas is filled with the copper tubes when the nitrogen gas is fed in, so it is difficult to precisely control the amount of nitrogen gas. It is easy to cause a lot of waste of nitrogen and reduce the utilization rate of resources

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