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KR-20260066898-A - Powder for infiltration and method for producing the same

KR20260066898AKR 20260066898 AKR20260066898 AKR 20260066898AKR-20260066898-A

Abstract

The present invention relates to an infiltration powder having excellent infiltration rate and residue removal properties and no erosion, and a method for manufacturing the same. The invention provides an infiltration powder comprising 0.5 to 5 weight% of one or more elements selected from iron (Fe), nickel (Ni), and molybdenum (Mo), 0.6 to 1.8 weight% of titanium dioxide ( TiO2 ), the remainder being copper (Cu), and 0.1 weight% or less of unavoidable impurities, and a method for manufacturing the same. The manufactured infiltration powder is suitable for use in automobile or electrical/electronic components requiring excellent mechanical properties.

Inventors

  • 김대현
  • 이지훈
  • 김대환

Assignees

  • 주식회사 풍산홀딩스

Dates

Publication Date
20260512
Application Date
20241105

Claims (8)

  1. Infiltration powder comprising 0.5 to 5 wt% of one or more elements selected from iron (Fe), nickel (Ni) and molybdenum (Mo), 0.6 to 1.8 wt% of titanium dioxide ( TiO2 ), the remainder being copper (Cu), and 0.1 wt% or less of unavoidable impurities.
  2. In Article 1, Infiltration powder further containing 2 to 8 weight percent of manganese (Mn).
  3. In Article 2, Infiltration powder containing 4 to 6 weight percent manganese (Mn).
  4. In Article 1, Infiltration powder containing 1.1 to 1.3 weight percent of titanium dioxide ( TiO2 ).
  5. In Article 1, Infiltration powder having a melting point in the range of 1120 to 1150℃.
  6. In Article 1, Infiltration powder that exhibits an infiltration rate of 90% or more.
  7. In Article 1, Infiltration powder used in automobiles or electrical and electronic components.
  8. A method for manufacturing an infiltration powder comprising the step of forming a composition comprising 0.5 to 5 wt% of one or more elements selected from iron (Fe), nickel (Ni), and molybdenum (Mo), 0.6 to 1.8 wt% of titanium dioxide ( TiO2 ), the remainder being copper (Cu), and 0.1 wt% or less of unavoidable impurities.

Description

Powder for infiltration and method for producing the same The present invention relates to an infiltration powder and a method for manufacturing the same. More specifically, the present invention relates to an infiltration powder having an excellent infiltration rate for use in automotive or electrical and electronic fields requiring high mechanical properties, and a method for manufacturing the same. Sintered bodies made of metallic or non-metallic materials (hereinafter also referred to as 'base material' or 'substrate') are widely used in various industrial fields. These sintered bodies are primarily used in environments requiring wear resistance, heat resistance, and high strength, and various manufacturing methods and technologies have been researched to improve their performance. In particular, the infiltration process is one of the widely used methods to enhance the mechanical properties of sintered bodies. This process involves infiltrating metals or other materials into the pores of porous sintered bodies to increase density and enhance properties such as mechanical strength, hardness, durability, and thermal conductivity. Generally, the selection of powder materials used in the infiltration process significantly influences the final physical properties of the sintered body; consequently, powder characteristics and manufacturing technologies for sintered bodies utilizing them have established themselves as important research fields. Conventional infiltrated sintered body manufacturing technologies utilize various metal powders to enhance the properties of the sintered body, particularly density, mechanical strength, and durability; however, limitations still exist in terms of achieving a high infiltration rate into the micropores (the ratio of the weight of the infiltration powder penetrating into the sintered body to the weight of the infiltration powder in contact with the sintered body) and residue removal capabilities. Furthermore, since the performance of the sintered body varies significantly depending on the selection, composition, and size of the powder materials used in the infiltration process, there is a need to optimize these factors. The terms used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Accordingly, the configurations illustrated in the embodiments described in this specification are merely one preferred embodiment of the invention and do not represent all of the technical spirit of the invention; therefore, it should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application. Technical or scientific terms used in this invention are as defined by those skilled in the art unless otherwise specified. Any tool, equipment, method, or substance named in this invention refers to a tool, equipment, method, or chemical substance commonly used by those skilled in the art, unless otherwise stated as a specific tool, equipment, method, or substance in this invention alone. In this specification, unless otherwise stated in the content, terms such as “comprising,” “comprising,” and “comprising,” etc., shall be understood to mean that the described steps, or components, or groups of steps or components are included, but do not exclude any other steps, or components, or groups of steps or components. Accordingly, the use of terms such as “comprising,” etc., indicates that the described components are essential or mandatory, while other components are optional and may or may not be present. Terms such as “constituting,” “constituting,” etc., mean that they include only what precedes the expressions “constituting” and “constituting,” and are limited thereto. Accordingly, the expressions “constituting” and “constituting” indicate that the described components are essential or mandatory and that other components are absent. Throughout this specification, terms such as “about,” “approximately,” etc. mean that the range includes ±20% to ±1% of the value, more preferably that the range includes ±15%, ±10%, or ±5% of the value, and most preferably that the range includes ±10% of the value. The following embodiments are presented without the intent to limit the scope of the invention. Infiltration powder (infiltration material) The infiltration powder according to the present invention consists of 0.5 to 5 weight% of one or more elements selected from iron (Fe), nickel (Ni), and molybdenum (Mo), 0.6 to 1.8 weight% of titanium dioxide ( TiO2 ), the remainder being copper (Cu), and 0.1 weight% or less of unavoidable impurities. Hereinafter, the composition of the infiltration powder according to the present invention will be described. (