An apparatus and method for controlling surface oxidation of a furnace brazed product

CN116748622BActive Publication Date: 2026-07-07XIAN SPACE ENGINE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN SPACE ENGINE CO LTD
Filing Date
2023-06-26
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing technologies suffer from surface oxidation during furnace brazing, leading to decreased product quality, low production efficiency, and high costs. This is especially true for complex parts with intricate structures, where processing is both complicated and costly.

Method used

A furnace-based brazing product surface oxidation control device is used. The product is placed in an inert gas environment under the semi-enclosed protection of a protective cover. The gas flows uniformly on the product surface until it is cooled after being removed from the furnace, thus avoiding a vacuum environment and complex surface treatment processes.

Benefits of technology

It achieves oxidation-free surface treatment for products with complex surface structures, simplifies the production process, improves production efficiency, reduces production costs, and simplifies the structure of product protection devices.

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Abstract

The application relates to a furnace brazing product surface oxidation control device and method, belonging to the technical field of welding. By using the oxidation control device, a protective gas is injected to the product surface in a directional and fixed-flow manner during brazing, the dynamic airflow of the product surface is uniform, the product surface is prevented from being oxidized during high-temperature brazing and the cooling process, and the product surface quality is improved. The method can realize brazing of the same or different materials, such as stainless steel, high-strength stainless steel, high-temperature alloy, copper and the like, and complex structure products, has the characteristics of simple structure, easy operation, low cost and repeated use, can be widely used for furnace brazing of different materials and structure products, and solves the problem of product surface oxidation during brazing.
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