Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of tungsten-copper heat sink component for optical module

An optical module, tungsten copper technology, applied in the field of powder metallurgy, can solve the problems of difficult to obtain high density, high material waste, low thermal conductivity, etc., to achieve the effect of excellent surface condition, high utilization rate of raw materials, and excellent thermal performance

Pending Publication Date: 2022-05-27
XIAN UNIV OF TECH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since W and Cu are completely insoluble, it is difficult to obtain high-density W-Cu composites by liquid phase sintering, so the thermal conductivity of W-Cu composites prepared by liquid phase sintering is low.
In addition, although the infiltration method can prepare high-density and high-performance W-Cu composite materials, the infiltration method can only prepare blocks with simple shapes, which require a lot of processing to manufacture heat sink components for optical modules, and waste materials many, low efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of tungsten-copper heat sink component for optical module
  • Preparation method of tungsten-copper heat sink component for optical module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of the tungsten copper heat sink component for an optical module of the present invention is specifically implemented according to the following steps:

[0026] Using tungsten powder with a particle size of 0.5 μm, copper sulfate and nickel nitrate as raw materials, the raw materials are mixed uniformly in the mass ratio of W:Cu:Ni=79.8:20:0.2 by wet grinding, and then the slurry is prepared by spray drying equipment. The slurry was prepared into spherical composite powder; then the spherical composite powder was calcined and reduced in hydrogen to obtain spherical W / Cu / activated sintered element composite powder. ℃ / min heated to 800 ℃ for 2 h, to obtain spherical composite powder with a particle size of 25 μm, the sphericity was 95.5%; the spherical W / Cu / activated sintering element composite powder and the wax-based binder were mixed at 150 ℃ for 2 h , the volume ratio of the powder to the wax-based binder is 58:42, and the injection molding feed...

Embodiment 2

[0029] The preparation method of the tungsten copper heat sink component for an optical module of the present invention is specifically implemented according to the following steps:

[0030] Using tungsten powder with a particle size of 0.4 μm, copper sulfate and ferric sulfate as raw materials, the raw materials are mixed uniformly in the mass ratio of W:Cu:Fe=79.65:20:0.35 by wet grinding, and then the slurry is prepared by spray drying equipment. The slurry was prepared into spherical composite powder; then the spherical composite powder was calcined and reduced in hydrogen to obtain spherical W / Cu / activated sintered element composite powder. ℃ / min heated to 800 ℃ for 2 hours to obtain spherical composite powder with a particle size of 18 μm and a sphericity of 96.5%; the spherical W / Cu / activated sintering element composite powder and the wax-based binder were mixed at 150 ℃ for 2 hours , the volume ratio of powder and wax-based binder is 50:50, and the injection molding fe...

Embodiment 3

[0033] The preparation method of the tungsten copper heat sink component for an optical module of the present invention is specifically implemented according to the following steps:

[0034] Using tungsten powder with a particle size of 0.8 μm, copper nitrate and nickel sulfate as raw materials, the raw materials are mixed uniformly in the mass ratio of W:Cu:Ni=84.5:15:0.5 by wet grinding to prepare a slurry, and then spray drying equipment is used. The slurry was prepared into spherical composite powder with a sphericity of 95.0%; then the spherical composite powder was calcined and reduced in hydrogen to obtain spherical W / Cu / activated sintered element composite powder. ℃ / min, holding for 2h, then heating to 800℃ for 2h at 5℃ / min to obtain spherical composite powder with a particle size of 30μm; the spherical W / Cu / activated sintering element composite powder and the binder were mixed at 150℃ 2h, the volume ratio of powder and wax-based binder was 58:42, and the injection mol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a tungsten-copper heat sink component for an optical module, spherical composite powder is prepared based on wet grinding and spray drying granulation, a copper phase and activated sintering elements are distributed in gaps of tungsten particles with nano sizes, and the sintering process not only has copper phase filling and tungsten particle rearrangement caused by a copper liquid phase, but also has the advantages of low cost and high efficiency. And the solid-phase sintering of the nano tungsten powder particles is realized, so that the sintering temperature and the production cost can be greatly reduced. The tungsten-copper heat sink component for the optical module is prepared through the injection molding process, the raw material utilization rate is high, the size precision of the component is good, and the heat sink component is excellent in thermal performance and surface state.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy, and in particular relates to a preparation method of a tungsten copper heat sink component for an optical module. Background technique [0002] With the advent of the 5G era, the demand for high-power optical modules is increasing, and the power of a single optical module is also increasing, which puts forward higher requirements for the thermal conductivity of the heat sink components of the optical module. The thermal conductivity of the existing Kovar alloy has been difficult to meet the requirements, and the tungsten copper (W-Cu) composite material with excellent thermal conductivity and low thermal expansion coefficient can meet its thermal conductivity requirements. However, the heat sink parts of the optical modules are generally small in size, and the parts have thin walls and complex shapes. The W-Cu composites are mostly prepared by liquid phase sintering and infiltration. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/22B22F9/02B22F1/065B22F1/10B22F3/22C22C27/04C22C1/04
CPCB22F9/22B22F9/026B22F3/225C22C27/04C22C1/045
Inventor 陈铮梁淑华张乔邓楠肖鹏邹军涛
Owner XIAN UNIV OF TECH