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Cobalt-doped magnesium-molybdenum alloy electrode wire and manufacturing method thereof

A manufacturing method and electrode wire technology, applied in the direction of electrode manufacturing, manufacturing tools, electric processing equipment, etc., can solve the problems of insufficient damage resistance of materials, loss of molybdenum wire, insufficient discharge performance of materials, etc., to improve comprehensive performance, improve High temperature performance, effect of improving application value

Active Publication Date: 2016-05-11
CHENGDU HONGBO INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 2. The strength of the material is low
[0009] 3. Insufficient discharge performance of the material
[0010] 4. Insufficient damage resistance of materials
[0011] 5. Insufficient comprehensive performance of materials
When the diameter is Φ0.18mm, under the same cutting conditions, the average metal cutting amount of the first wire electrode is about 200000mm in a single feeding 2 , the second type of electrode wire has an average metal cutting amount of 300,000mm in a single feeding 2 , the molybdenum wire will be broken or the molybdenum wire will be seriously worn out and need to be replaced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) 200kg molybdenum dioxide powder is packed in the mixer;

[0039] (2) 1.0 liter of cobalt content is that the cobalt nitrate solution of 30 grams per liter and 2.0 liters of magnesium content are put into the liquid feeder after being mixed with the magnesium nitrate solution of 30 grams per liter, and are added in the mixer with spray mode, Mix while adding;

[0040] (3) Add 300 milliliters of pure water to wash the dosing device, and add the washing liquid to the mixer;

[0041] (4) After mixing molybdenum dioxide powder with cobalt nitrate solution and magnesium nitrate solution for 1 hour, turn on the heating steam to heat and dry the powder, mix while heating, and stop heating after mixing for 4 hours;

[0042] (5) take out the doped molybdenum dioxide powder after being cooled to room temperature;

[0043] (6) Doped molybdenum powder is made by secondary reduction, which is sieved, mixed, compacted, intermediate frequency sintered, then swaged, stringed, wire...

Embodiment 2

[0046] (1) 400kg molybdenum dioxide powder is packed in the mixer;

[0047] (2) 3.0 liters of cobalt content is that the cobalt nitrate solution of 40 grams per liter and 3.6 liters of magnesium content are 50 grams per liter of magnesium nitrate solution after being mixed and put into the liquid feeder, join in the mixer with spray mode, Mix while adding;

[0048] (3) Add 400 milliliters of pure water to wash the dosing device, and add the washing liquid to the mixer;

[0049] (4) with embodiment 1;

[0050] (5) with embodiment 1;

[0051](6) Doped molybdenum powder is made by secondary reduction, which is sieved, mixed, compacted, intermediate frequency sintered, then swaged, stringed, wire-drawn and annealed to Φ1.0mm, and then drawn to Φ0.18mm by machining. A cobalt-doped magnesium-molybdenum alloy electrode wire with a cobalt content of 411ppm and a magnesium content of 615ppm was produced.

[0052] The tensile strength of the above-mentioned cobalt-doped magnesium-mo...

Embodiment 3

[0054] (1) 500kg molybdenum dioxide powder is packed in the mixer;

[0055] (2) 3.125 liters of cobalt content is the cobalt nitrate solution of 60 grams per liter and 4.375 liters of magnesium content is the magnesium nitrate solution of 60 grams per liter and puts into the liquid feeder after mixing, joins in the mixer with spraying mode, Mix while adding;

[0056] (3) Add 500 milliliters of pure water to wash the dosing device, and add the washing liquid to the mixer;

[0057] (4) with embodiment 1;

[0058] (5) with embodiment 1;

[0059] (6) Doped molybdenum powder is made by secondary reduction, which is sieved, mixed, compacted, intermediate frequency sintered, then swaged, stringed, wire-drawn and annealed to Φ1.0mm, and then drawn to Φ0.18mm by machining. A cobalt-doped magnesium-molybdenum alloy electrode wire with a cobalt content of 515ppm and a magnesium content of 718ppm was produced.

[0060] The tensile strength of the above-mentioned cobalt-doped magnesium...

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Abstract

The invention provides a cobalt and molybdenum doped magnesium alloy electrode wire and a manufacturing method thereof. The electrode wire is a molybdenum alloy electrode wire for wire cutting, wherein the molybdenum alloy electrode wire for wire cutting is manufactured in the manner of adding a cobalt element and a molybdenum element to molybdenum dioxide powder and carrying out powder metallurgy and machining. The manufacturing method comprises the steps that the molybdenum dioxide powder is loaded in a blender mixer; a cobalt nitrate solution and a magnesium nitrate solution are mixed and then placed in a liquid adding device and are added into the blender mixer in a spray manner, and mixing is carried out while adding is carried out; after adding is finished, pure water is added to wash the liquid adding device, and washing liquid is added into the blender mixer; mixing and drying are carried out; the molybdenum dioxide powder doped with the cobalt element and the molybdenum element is taken out after being cooled to room temperature; and secondary reduction is carried out to manufacture doped molybdenum powder and the cobalt and molybdenum doped magnesium alloy electrode wire is manufactured in a machined manner through powder screening, mixing, blank pressing, intermediate-frequency sintering, rotary swaging, stringing, drawing and annealing. The high temperature performance, strength of extension, discharging efficiency and damage resistance of molybdenum wires for electrospark wire cutting are improved, and the application value of the electrode wire for wire cutting is increased.

Description

technical field [0001] The invention relates to a molybdenum alloy electrode wire for wire cutting and a manufacturing method thereof, in particular to a cobalt-doped magnesium-molybdenum alloy electrode wire and a manufacturing method thereof. Background technique [0002] Wire cutting production technology is widely used in the machine processing industry. The electrode wire used for wire cutting is the main consumable. The wire cutting molybdenum wire is a molybdenum metal electrode wire made of molybdenum, which is used for wire cutting machine tools with continuous movement of high-voltage electric fields To process the workpiece, the molybdenum metal electrode wire can perform pulse spark electrocorrosion on the workpiece, and cut the metal into shape. [0003] At present, there are mainly two types of wire cutting electrode wires: [0004] 1. Use pure molybdenum molybdenum wire with molybdenum content greater than 99% as wire cutting electrode wire to cut metal workp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H7/24B23H7/22C22C1/05C22C23/00
Inventor 李伟高观金赵登华骆银福蒋月冰
Owner CHENGDU HONGBO INDAL