CN101352804A - Technique for processing sectional material of tungsten, molybdenum and other refractory metals - Google Patents

Abstract

The invention belongs to a technique for processing the proximate matters of refractory metals like tungsten, molybdenum, and the like, in the processing technical field of metal materials. The processing technique mainly includes the steps as follows: (1) machining the materials to be smooth; (2) coating a layer of copper outside the materials; (3) heating to a temperature above 900 DEG C; (4) extruding and shaping on an extruding press. The processing technique extrudes and shapes the refractory metals like tungsten, molybdenum, and the like, by the extruding press; the performance thereof is remarkably improved; besides, the processing times are reduced; the economic benefit is remarkably improved.

Description

The section bar processing technology of tungsten, molybdenum and other refractory metals

Technical field

The invention belongs to the machining of metal material processing technical field, particularly refractory metal.

Background technology

The section bar material section bar of tungsten, molybdenum and other refractory metals forges processing by heating the back in the past and since the metallic character of tungsten in heating process with air in hydrogen, oxygen, wait the gas contact after, the hardness of metal own is improved, become fragile.The performance and the structure of metal itself in the power effect distortion of forging process China and foreign countries, have also been influenced.

The meeting of forging changes material property repeatedly, and the air contact causes fragility to increase

Summary of the invention

Provide a kind of section bar processing technology of tungsten, molybdenum and other refractory metals during goal of the invention of the present invention, to overcome heating, to forge processing to the tungsten and molybdenum material Effect on Performance.

Specifically, the section bar processing technology of tungsten, molybdenum and other refractory metals, it is to implement according to following steps:

(1), stores van light;

(2), in material outsourcing one deck copper sheet protection, reduce the air contact and also play certain lubrication;

(3), be heated to more than 900 ℃;

(4), extrusion molding on extruder.

Squeeze pressure is not less than 1000 tons in the above-mentioned steps (4).

The present invention is with refractory materials such as tungstens, and through extruder, high warm-extrusion forming has increased tensile strength, and plasticity.Its performance significantly improves, and has reduced the processing number of times, and economic benefit obviously improves.

The specific embodiment

The section bar processing technology of tungsten, molybdenum and other refractory metals, it is to implement according to following steps:

(1), stores van light;

(2), protect the contact of minimizing air at material outsourcing one deck copper sheet; Play certain lubrication.

(3), be heated to more than 900 ℃;

(4), extrusion molding on extruder.Squeeze pressure is not less than 1000 tons.

Claims (2)

1, the section bar processing technology of tungsten, molybdenum and other refractory metals is characterized in that implementing according to following steps:

(1), stores van light;

(2), in material outsourcing one deck copper sheet protection, reduce the air contact and also play certain lubrication;

(3), be heated to more than 900 ℃;

(4), extrusion molding on extruder.

2, the section bar processing technology of tungsten, molybdenum and other refractory metals according to claim 1 is characterized in that squeeze pressure is not less than 1000 tons in the step (4).