Continuous rotary forging method special for multi-component tungsten electrode

Abstract

The invention discloses a continuous rotary forging method special for a multi-component tungsten electrode. A continuous rotary forging device composed of a first heating furnace, a first rotary forging machine, a first guide roller, a second heating furnace, a second rotary forging machine and a second guide roller is used in the continuous rotary forging method. The continuous rotary forging method includes the steps that the temperature of the first heating furnace and the temperature of the second heating furnace firstly rise to range from 1450 DEG C to 1500 DEG C, then multi-component rare earth tungsten electrode materials which are 6.5 mm in diameter phi and are obtained after B203 rotary forging are fed into the continuous rotary forging device at the speed of 2 m / min to 3 m / min, and three-pass B202-stage processing and two-pass B201-stage processing are sequentially carried out. The continuous rotary forging method is suitable for the mechanical property of the multi-component rare earth tungsten electrode materials, and efficient tungsten material processing can be achieved. The phi6-to-phi3 multi-component rare earth tungsten electrode materials can be obtained.

Description

technical field [0001] The invention relates to a rare earth refractory metal material processing technology, in particular to a special continuous swaging method for multi-element composite tungsten electrodes. Background technique [0002] Refractory metals such as tungsten and molybdenum have poor processability, so rotary forging is usually used, that is, the rotary hammer performs radial reciprocating motion while rotating at high speed, so that the billet is uniformly deformed. For the processing of tungsten and tungsten alloys, swaging equipment with a single swaging head is often used for processing. [0003] In the prior art, the patent 200710099090.4 uses this single-head rotary forging machine for the spin-off processing of the multi-element composite rare earth tungsten electrode. The multi-element composite rare earth tungsten electrode material needs to go through 6 processes in the B202 stage, and 4 processes in the B201 stage. The process is complicated and ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the patent 200710099090.4 uses this single-head rotary forging machine for the spin-off processing of the multi-element composite rare earth tungsten electrode. The multi-element composite rare earth tungsten electrode material needs to go through 6 processes in the B202 stage, and 4 processes in the B201 stage. The process is complicated and labor-intensive. In order to improve the processing efficiency, it is an effective way to combine two rotary forging machines to form a set of continuous rotary forging equipment. At present, similar equipment has been used in the processing of pure tungsten, tungsten-aluminum and molybdenum. , and for rare earth-doped tungsten materials, especially multi-element rare-earth composite tungsten materials, there is no such special equipment application at present, mainly because the machinability of multi-element composite tungsten is very poor, and rare earth second-phase particles The impact on the material structure changes the plastic-brittle transition temperature of the tungsten material. Therefore, for the continuous rotary forging process, in addition to requiring consistent feeding speed, the mold matching system and processing temperature are also particularly important.

Images