Novel tungsten-nickel-cobalt material and preparation method thereof

A new type of tungsten-nickel technology, applied in the field of new tungsten-nickel-cobalt materials and their preparation, can solve the problems of limited corrosion resistance and poor mechanical properties of tungsten-nickel-cobalt series materials, so as to improve efficiency, avoid material oxidation problems, reduce Effect of subsequent sintering temperature

Active Publication Date: 2019-06-04
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the tungsten-nickel-copper series materials in the existing mobile phone motor mass block materials need to be electroplated to enhance the corrosion resistance, the tungsten-nickel-iron series materials have limited corrosion resistance and are magnetic, and the mechanical properties of the tungsten-nickel-cobalt series materials are not good, which leads to the current mobile phone. There is no suitable material for the preparation of the motor mass block. The present invention provides a new type of tungsten-nickel-cobalt material

Method used

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  • Novel tungsten-nickel-cobalt material and preparation method thereof
  • Novel tungsten-nickel-cobalt material and preparation method thereof
  • Novel tungsten-nickel-cobalt material and preparation method thereof

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Embodiment 1～5

[0041] A novel tungsten-nickel-cobalt material, the novel tungsten-nickel-cobalt material is prepared by the following process:

[0042] 1) Batching: weighing the raw materials according to the proportion;

[0043] 2) Wet milling: 30 kg of raw materials weighed, 60 kg of stainless steel balls and 6 kg of ethanol were mixed and placed in a 40L ball mill for milling for 6 hours at a speed of 40 r / min. After milling, the milling medium was separated and removed to obtain a mixture;

[0044] 3) Drying: place the mixture at 70°C and vacuum degree -0.06MPa for 2 hours in vacuum;

[0045] 4) Glue blending and drying: use PVA forming agent to blend the dried mixture under the condition of heating to 90°C, and continue to dry at 90°C after the stirring and blending is completed;

[0046] 5) Granulation: After the drying is completed, wipe the sieve on the sieve to granulate. After the granulation is completed, dry and pass through 80 mesh, 100 mesh and 120 mesh sieves for use;

[004...

Embodiment 6～10

[0071] A novel tungsten-nickel-cobalt material, the novel tungsten-nickel-cobalt material is prepared by the following process:

[0072] 1) batching: according to the proportioning described in embodiment 3, raw material is weighed batching;

[0073] 2) Wet milling: Mix the weighed raw materials, stainless steel balls and absolute ethanol and place them in a ball mill for ball milling. After ball milling, the ball milling medium is separated and removed to obtain the mixture;

[0074] 3) drying: carry out vacuum drying to mixture;

[0075] 4) Adhesive drying: use PVA molding agent to carry out adhesive drying treatment on the dried mixture under heating conditions;

[0076] 5) Granulation: After the drying is completed, wipe the sieve on the sieve to granulate. After the granulation is completed, dry and classify and sieve for later use;

[0077] 6) Molding: According to the size requirements of the product, the mold is used for compression molding to obtain the embryo;

[...

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Abstract

The invention relates to the field of alloy materials, in particular to a novel tungsten-nickel-cobalt material and a preparation method thereof. The novel tungsten-nickel-cobalt material is preparedfrom the following raw materials in percentage by weight: 95-97% of tungsten powder, 0.8-1.5% of cobalt, 1.5-3.0% of nickel, 0.1-0.5% of iron and 0-0.5% of chromium. The preparation method includes the steps of blending, wet grinding, drying, glue mixing and drying, granulating, molding, and glue discharging and sintering. The prepared novel tungsten-nickel-cobalt material has extremely high strength and toughness, and is far better than existing tungsten-nickel-cobalt materials; good high-temperature and high humidity resistance and salt mist corrosion resistance are achieved, and generationof magnetism can be avoided; compared with traditional processes, the preparation method has the characteristics of higher preparation efficiency and better preparation effect; and use of an electroplating process is avoided, and more environmental protection is achieved.

Description

technical field [0001] The invention relates to the field of alloy materials, in particular to a novel tungsten-nickel-cobalt material and a preparation method thereof. Background technique [0002] Mobile phone motor quality block materials are used in the field of mobile phone vibration motors, so the requirements for product density are high, and tungsten-based alloys are generally used for production and preparation. It is required that the material cannot be magnetized, and because the mobile phone needs to be used under different conditions for a long time, it will inevitably come into contact with a small amount or a small amount of corrosive gases such as water vapor, so the vibration motor mass block material is also required to have certain corrosion resistance. , the specific anti-corrosion performance is detected and reflected through high temperature, high humidity and salt spray tests. Most importantly, due to the requirements of the mobile phone motor product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/04C22C1/04
Inventor 裘利铭
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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