A Pulse Current Assisted Incremental Restoration Method

Abstract

The invention relates to a pulse current auxiliary increment repair device and a pulse current auxiliary increment repair method. The method comprises the following steps: introducing high-frequency pulse current into a filler and the deletion position of a product to be repaired by using an upper electrode and a lower electrode; quickly fusing the filler by an autonomous heating mode; realizing temperature measurement and control by using an infrared temperature measuring device and a proportion integration differentiation (PID) control system; applying a certain pressure to the filter by using an upper pressing head and a lower pressing head; and realizing diffusion connection of the filler and the deletion position of the mother material under the action of pressure so as to fulfill the aim of increment repair. The pulse current auxiliary increment repair device and the pulse current auxiliary increment repair method have the benefits that the method is different from the traditional welding repair method and can realize automatic control of the temperature of the filler area, so that the consistency of the microstructures and the mechanical properties of the mother material and the repair area is effectively guaranteed, and the service life of an aluminum alloy tyre die is greatly prolonged. By adoption of the method provided by the invention, the heating efficiency can be increased by 300 to 500 percent, the forming period is shortened to 10 to 50 s, and the repair period of single defect is only 20 to 30 s.

Description

technical field [0001] The invention relates to a rapid incremental repair technology for tire molds, in particular to a pulse current assisted incremental repair device and method. Background technique [0002] The tire is an important part of the car. The quality of the tire is not only related to the rubber material, formula, vulcanization process, etc., but also has a considerable relationship with the quality of the tire mold. The tire mold is to ensure the tire size, surface quality and dynamic performance. important part of. In recent years, the design and manufacture of domestic automobile tire products and their molds have gradually been in line with the trend of advanced manufacturing technology in the world, and the three-dimensional design and manufacturing of molds have been realized. Automobile molds often need to be repaired during use. The special repair technology for tire molds can completely replace the manual repair process, which significantly shortens ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pulse current assisted incremental repair device and method for the above-mentioned defects in the prior art, which solves the difficulty of high-quality and effective incremental repair of existing tire molds, especially for large tire molds. Incremental fixes that avoid scrapping the entire product

Images