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CN-121992245-A - Powder for infusion and method for preparing same

CN121992245ACN 121992245 ACN121992245 ACN 121992245ACN-121992245-A

Abstract

Disclosed are a powder for infiltration and a method for preparing the same, which have excellent infiltration rate and residue removal efficiency, thus preventing erosion. The powder for infiltration contains 0.5 to 5 wt% of at least one element selected from iron (Fe), nickel (Ni) and molybdenum (Mo), 0.6 to 1.8 wt% of titanium dioxide (TiO 2), and the balance copper (Cu), and 0.1 wt% or less than 0.1 wt% of unavoidable impurities. The powder for infiltration is suitable for automobile parts or electric/electronic parts requiring excellent mechanical properties.

Inventors

  • JIN DAXUAN
  • LI ZHIXUN
  • Jin Dahuan

Assignees

  • 株式会社丰山控股

Dates

Publication Date
20260508
Application Date
20251016
Priority Date
20241105

Claims (8)

  1. 1. A powder for infusion comprising: 0.5 to 5 wt% of at least one element selected from the group consisting of iron (Fe), nickel (Ni) and molybdenum (Mo); 0.6 to 1.8 weight percent titanium dioxide (TiO 2 ); Copper (Cu) in balance, and 0.1% By weight or less than 0.1% by weight of unavoidable impurities.
  2. 2. The powder for infusion of claim 1, further comprising: 2 to 8 wt% manganese (Mn).
  3. 3. The powder for infiltration according to claim 2, wherein the content of manganese (Mn) is 4 to 6 wt%.
  4. 4. The powder for infusion according to claim 1, wherein the content of the titanium dioxide (TiO 2 ) is 1.1 to 1.3% by weight.
  5. 5. The powder for infusion according to claim 1, wherein the melting point of the powder for infusion is 1120 ℃ to 1150 ℃.
  6. 6. The powder for infusion according to claim 1, wherein the dissolution rate of the powder for infusion is 90% or higher than 90%.
  7. 7. The powder for infusion according to claim 1, wherein the powder for infusion is used for an automobile part or an electric/electronic part.
  8. 8. A method of preparing a powder for infusion, the method comprising forming a composition, The composition comprises: 0.5 to 5 wt% of at least one element selected from the group consisting of iron (Fe), nickel (Ni) and molybdenum (Mo); 0.6 to 1.8 weight percent titanium dioxide (TiO 2 ); Copper (Cu) in balance, and 0.1% By weight or less than 0.1% by weight of unavoidable impurities.

Description

Powder for infusion and method for preparing same The present application claims the benefit of korean patent application No. 10-2024-0154967 filed on 5 of 11 of 2024, which is incorporated by reference in its entirety as if fully set forth herein. Technical Field The present disclosure relates to a powder for infiltration and a method of preparing the same, and more particularly, to a powder for infiltration having a high infiltration rate, which is suitable for an automotive field or an electric/electronic field requiring high mechanical properties, and a method of preparing the same. Background Sintered bodies (hereinafter referred to as "base materials" or "substrates") formed of metallic materials or nonmetallic materials are widely used in various industrial fields. These sintered bodies are mainly used in environments where wear resistance, heat resistance and high strength are required, and various manufacturing methods and techniques have been studied to improve the performance thereof. In particular, the leaching process is one of the most widely used methods for enhancing the mechanical properties of sintered bodies. The process has the effect of increasing density and enhancing mechanical strength, hardness, durability, and thermal conductivity by impregnating metal or other materials into the pores of the porous sintered body. The choice of powder material used in the infiltration process significantly affects the final physical properties of the sintered body. Therefore, the characteristics of the powder and the method of producing a sintered body using the powder have become important fields of research. Conventional methods for producing melt-immersed sintered bodies are to use various metal powders to enhance properties, in particular, density, mechanical strength and durability of the sintered body. However, there are still limitations in achieving a high infiltration rate (ratio of the weight of the powder for infiltration into the sintered body to the weight of the powder for infiltration in contact with the sintered body) and residue removal efficiency into micropores in the sintered body. Furthermore, the properties of the sintered body are largely dependent on the choice, composition and particle size of the powder material used in the infiltration process, and therefore need to be optimized. Disclosure of Invention The present disclosure is directed to solving at least the problems and/or disadvantages described above and to providing at least the advantages described below. Accordingly, it is an aspect of the present disclosure to provide a powder for infiltration (hereinafter also referred to as "infiltration material") and a method of preparing the same to improve the performance of a sintered body. Additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosed embodiments. According to the present disclosure, the powder for infiltration includes 0.5 to 5wt% of at least one element selected from iron (Fe), nickel (Ni) and molybdenum (Mo), 0.6 to 1.8 wt% of titanium dioxide (TiO 2), the balance being copper (Cu), and 0.1 wt% or less than 0.1 wt% of unavoidable impurities. The powder for leaching may further comprise 2 to 8 wt% manganese (Mn). The content of manganese (Mn) may be 4 to 6 wt%. The content of titanium dioxide (TiO 2) may be 1.1 to 1.3 wt%. The melting point of the powder for infusion may be 1120 ℃ to 1150 ℃. The dissolution rate of the powder for leaching may be 90% or higher than 90%. The powder for infiltration may be used for automobile parts or electric/electronic parts. According to the present disclosure, a method of preparing a powder for infiltration includes forming a composition including 0.5 to 5 wt% of at least one element selected from iron (Fe), nickel (Ni) and molybdenum (Mo), 0.6 to 1.8 wt% of titanium dioxide (TiO 2), the balance being copper (Cu), and 0.1 wt% or less than 0.1 wt% of unavoidable impurities. The problems to be solved by the present disclosure are not limited to the above-described technical problems, and other technical problems not mentioned will be clearly understood from the following description by those skilled in the art to which the present disclosure pertains. Detailed Description The terms used in the present disclosure and claims should not be construed to be limited to their ordinary or dictionary meanings. According to the principle that the inventors can define terms to best describe the present disclosure, these terms should be interpreted in conjunction with the technical spirit of the present disclosure. Thus, the embodiments described herein are provided as preferred examples only and do not represent all of the present disclosure. Therefore, it is to be understood that various equivalents and modifications that replace the disclosed embodiments at the time of filing are included within the scope of the prese