Titanium alloy surface boronizing method

A titanium alloy and boronizing technology, applied in metal material coating process, coating, solid-state diffusion coating, etc., can solve the unfavorable high temperature boronizing of titanium alloy, increase the contact area between titanium alloy and oxygen, and increase the looseness of boronizing agent. It is easy to prepare, prevent high temperature oxidation, and reduce pollution.
CN101608296BInactive Publication Date: 2011-05-11NORTHEASTERN UNIV LIAONING
1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEASTERN UNIV LIAONING
Publication Date
2011-05-11
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

The invention relates to a titanium alloy surface boronizing method belonging to the technical field of metal surface treatment. The method comprises the following steps: performing the degreasing, water washing and surface polishing pretreatment on a titanium alloy surface, pressing boron carbide powder penetrating agents with the granularity of less than or equal to 0.1 mm and the pretreated titanium alloy material into sectional materials by using a pressing machine, putting the sectional materials into a crucible and covering the crucible with a cover, sealing gaps between the cover and the crucible by using adhesives, drying the crucible, performing the heating, heat preservation and cooling treatment on the crucible at the condition of raising the temperature with the increase rate of 8-10 DEG C / min to 1000-1200 DEG C in heating and the heat preservation time of 5-20 hours, and taking out the crucible and cooling the crucible to the room temperature. The method can reduce the varieties of composition materials of bornizing agents, thereby simplifying the titanium alloy surface boronizing technology and reducing the operation conditions so as to obtain an ideal alloying thickness of titanium alloy such as TC4 and the like under the air condition, and the boronizing agent of single composition can avoid the pollution of harmful gases to the environment.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to the boronizing technology on the surface of titanium alloy. Background technique

[0002] As we all know, titanium alloy has many excellent properties (such as: low density, high specific strength, excellent corrosion resistance and biocompatibility), so it is widely used in aerospace, shipbuilding, chemical and biomedical fields, but its hardness is low 2. The wear resistance is poor, and it is easy to wear when used as a sliding part, which seriously limits its application range. The compound TiB formed due to the reaction of Ti and B 2 It not only has the characteristics of high melting point, high hardness, and high strength of ceramic materials, but also has the advantages of high electrical conductivity and high thermal conductivity of metal materials, which can significantly improve the wear resistance and other surface properties of titanium a...

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