A method for preparing titanium-based spherical powder with fine particle size by gas atomization

A spherical powder, gas atomization technology, applied in the field of powder metallurgy, can solve the problem of high technical requirements, achieve the effect of improving the yield of fine powder, high yield of fine powder, and improving the problem of hollow ratio
CN107498059BActive Publication Date: 2019-01-22NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
8 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Publication Date
2019-01-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for preparing titanium-based spherical powder with fine particle size by gas atomization. The method is as follows: 1. Put titanium-based raw materials and tin materials into a melting crucible, and then place them in vacuum induction melting gas atomization equipment Vacuum induction smelting is carried out in the smelting chamber; 2. After the titanium-based raw material and tin material are melted by vacuum induction smelting, they are filled with argon for protection, and then the graphite guide tube at the bottom of the melting crucible is heated, and the titanium-based raw material is The molten liquid produced after melting with the tin material falls freely into the atomization chamber through the heated graphite guide tube, and the atomized powder is obtained after the vacuum induction melting gas atomization treatment, and the titanium-based spherical powder is obtained in the collection tank. In the present invention, the tin element is introduced into the titanium raw material or titanium alloy raw material to reduce the viscosity of the molten liquid obtained after smelting, so that it is easy to be broken during gas atomization, and the particle size of the obtained powder becomes finer. Among them, the titanium-based spherical powder The yield of powder with a medium particle size less than 45 μm is not less than 28%, the internal pores of the powder are reduced, and the number of hollow powders is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of powder metallurgy, and in particular relates to a method for preparing titanium-based spherical powder with fine particle size by gas atomization. Background technique

[0002] Spherical titanium and titanium alloy powders are important basic raw materials for high-performance powder metallurgy titanium and titanium alloy near-net shape manufacturing and processing because of their good fluidity, less pore inclusions, and low impurity content. In recent years, the demand for high-performance powder metallurgy titanium and titanium alloy parts in aviation, aerospace, shipbuilding, energy, automobile and biomedical industries has doubled. At the same time, the new rapid prototyping equipment and process technology represented by 3D printing technology (Laser rapid manufacturing, electron beam selective melting technology) has achieved rapid development, and powder metallurgy titanium and titanium alloys hav...

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