Vertical annealing furnace for coated superconducting substrate

Abstract

The invention provides a vertical annealing furnace for a coated superconducting substrate, belonging to the technical field of annealing furnaces. The vertical annealing furnace is characterized in that a substrate extending wheel is arranged in a substrate extending box; the substrate extending box is provided with a gas inlet and is connected and communicated with one end of an annealing furnace body by an inlet sealing device; the other end of the furnace body is connected and communicated with a substrate retracting box by an outlet sealing device; a substrate retracting wheel, a paper rolling wheel, a guide wheel and a variable frequency motor are placed in the substrate retracting box; a gas outlet is arranged on the substrate retracting box; heat insulating materials for protecting the annealing furnace body and heating control elements are arranged on the periphery of the annealing furnace body; temperature control elements are connected with the heating control elements to control the heating temperatures of the heating control elements; a condition machine is connected with the temperature control elements and the heating control elements; and the annealing furnace body is connected with a mechanical pump. The vertical annealing furnace meets the use requirement of coated superconducting substrate annealing, is easy to operate and ensures the quality of the coated superconducting substrate to be more stable.

Description

technical field [0001] The invention belongs to the technical field of annealing furnaces, and relates to a vertical annealing furnace, which is mainly used for annealing treatment of second-generation coated superconducting substrates. Background technique [0002] With YBa 2 Cu 3 o 7-x (YBCO) high-temperature coated superconducting materials are widely used in many fields. As a ductile Ni5W alloy substrate for epitaxially grown YBCO, it should have high texture, shallow grain boundaries and good mechanical properties. Annealing of the baseband can increase the content of cubic texture and eliminate deformation hardening and residual stress. Continuous annealing furnaces are divided into horizontal annealing furnaces and vertical annealing furnaces. In the former, the span between the two fulcrums of the base belt is relatively large during the annealing process, and it is easy to sink due to its own weight and the steel properties of the strip will deteriorate at high t...

AI Technical Summary

Problems solved by technology

Continuous annealing furnaces are divided into horizontal annealing furnaces and vertical annealing furnaces. In the former, the span between the two fulcrums of the base belt is relatively large during the annealing process, and it is easy to sink due to its own weight and the steel properties of the strip will deteriorate at high temperatures. , it is not easy to control the annealing quality

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