Continuous vacuum rapid quenching equipment and method for metal rapid quenching by using equipment

Abstract

The invention provides continuous vacuum rapid quenching equipment. Based on traditional rapid quenching equipment, the equipment is additionally provided with a transition cavity, a clamping device, a collecting device and a vacuuming device; the equipment improves such problems as need of opening / closing a main cavity door in each operation, manual loading of a heating body and manual collection of quenching products in the traditional equipment; and the equipment can realize continuous operation to reduce the energy and time consumption and to improve the production efficiency.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a continuous vacuum rapid quenching device and a method for metal rapid quenching using the device. Background technique [0002] For ease of use, bulk metals smelted from ores are usually first crushed into shapes such as granules, strips or flakes, and then shaped by powder metallurgy processes such as sintering or bonding, and finally processed into parts of mechanical and electronic equipment. [0003] The method of crushing bulk metal into particles was simple mechanical crushing in the early days, but the residual stress brought by this method was very large. Later, ball milling with steel balls and liquid medium, jet mill using high-pressure airflow to make materials collide with each other, and hydrogen absorption crushing for some rare earth alloys were developed. Among them, the melt quenching technology is used to spray the molten alloy liquid onto the water-cooled...

AI Technical Summary

Problems solved by technology

This method tries to use pressure to help inject the melt, but it does not solve the problem that the alloy liquid at the injection hole is poorly matched with the heating coil, and the injection hole may still be blocked.

[0010] In addition, small quick quenching furnaces also have the following disadvantages: (1) It often takes a long time for the furnace chamber to reach high vacuum from normal pressure, and when the volume in the chamber is large, the time required is longer; (2) Fast The alloy sprayed out after quenching still remains in the furnace cavity, and the furnace door must be opened to take out the product; in addition, after a work, the furnace door must be opened, the crucible must be reloaded manually, and then the furnace door should be closed and vacuumed to work again. circulation, which greatly limits the continuous working capacity of the vacuum quenching equipment and reduces the production efficiency

Images