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Method for preparing graphene composite 18Ni-300 anti-friction metal material based on SLM technology

A graphene composite, wear-reducing metal technology, applied in the field of wear-reducing metal manufacturing, can solve problems such as poor durability, complex preparation process, etc., and achieve the effects of avoiding aging and falling off, simple preparation process, and providing wear-reducing performance.

Pending Publication Date: 2022-01-07
SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to provide a method for preparing graphene composite 18Ni-300 anti-friction metal material based on SLM technology, so as to solve the defects of complex preparation process and poor durability of the existing anti-friction metal material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: A method of preparing graphene composite 18ni-300 based on SLM technology, including the following steps:

[0023] (1) Preparation of materials:

[0024] The 18ni-300 spherical steel powder was placed in a ball mill for ball milling, and the ball powder was screened after the ball mill was less than 200 μm, and the dried graphene powder was added to the mixed powder, mixed powder The argon is charged as a protective gas, and the mixing powder is mixed, and the ratio of graphene and 18 ni-300 in the mixed powder is 1: 3;

[0025] (2), preparation for program files and SLM equipment:

[0026] The three-dimensional solid model of the metal material is determined, and the three-dimensional solid model is subjected to a three-dimensional solid model, and the contour data of each section is obtained, and the program file and the forming process parameters of the SLM device are determined. And the forming process parameters are imported into the SLM device;

[0027] The...

Embodiment 2

[0032] Example 2: A method of preparing graphene composite 18ni-300 based on SLM technology, including the following steps:

[0033] (1) Preparation of materials:

[0034] The 18ni-300 spherical steel powder was placed in a ball mill for ball milling, and the ball powder was screened after the ball mill was less than 200 μm, and the dried graphene powder was added to the mixed powder, mixed powder The argon is charged as a protective gas, and the mixing powder is mixed for 3 h, and the proportion of graphene and 18 ni-300 in the mixed powder is 1: 10;

[0035] (2), preparation for program files and SLM equipment:

[0036] The three-dimensional solid model of the metal material is determined, and the three-dimensional solid model is subjected to a three-dimensional solid model, and the contour data of each section is obtained, and the program file and the forming process parameters of the SLM device are determined. And the forming process parameters are imported into the SLM device...

Embodiment 3

[0042] Example 3: A method of preparing graphene composite 18ni-300 based on SLM techniques, including the following steps:

[0043] (1) Preparation of materials:

[0044] The 18ni-300 spherical steel powder was placed in a ball mill for ball milling, and the ball powder was screened after the ball mill was less than 200 μm, and the dried graphene powder was added to the mixed powder, mixed powder The argon is charged as a protective gas, and the mixture is not less than 2 h, and the ratio of the graphene and 18 ni-300 in the mixed powder is formed at 1: 4;

[0045] (2), preparation for program files and SLM equipment:

[0046]The three-dimensional solid model of the metal material is determined, and the three-dimensional solid model is subjected to a three-dimensional solid model, and the contour data of each section is obtained, and the program file and the forming process parameters of the SLM device are determined. And the forming process parameters are imported into the SLM d...

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Abstract

The invention discloses a method for preparing a graphene composite 18Ni-300 anti-friction metal material based on an SLM technology. The method comprises the steps that materials are prepared, specifically, graphene powder and 18Ni-300 spherical steel powder form mixed powder for standby application; a program file and SLM equipment are prepared; forming is carried out, specifically according to the program file and forming process parameters imported into the SLM equipment, the SLM equipment starts selective melting, and after each layer of mixed powder is subjected to selective melting, a next layer of mixed powder is laid, selective melting is continued, and the process is repeated until the anti-friction metal material is stacked and formed; and aging treatment is carried out, specifically, aging treatment is carried out on the anti-friction metal material. The graphene composite 18Ni-300 anti-friction metal material is formed through a selective laser melting technology, and compared with traditional mold pressing and smelting methods, the graphene composite 18Ni-300 anti-friction metal material has the advantages of being simple in preparation process, excellent in anti-friction performance and high in durability.

Description

Technical field [0001] The present invention belongs to the field of refurbishing metal manufacturing, and in particular, to a preparation of a reducing metal material based on the selection laser melting technology. Background technique [0002] Selective Laser Melting Technology (SLM-Selective Laser Melting) As the most advanced and most potential technique in the field of additive manufacturing technology, it is an important development direction of advanced manufacturing technology. The SLM technology is a technique that is completely melted using a metal powder under the heat of the laser beam, and is molded by cooling solidification. According to the layered slice information of the three-dimensional CAD model of the molded piece, the scanning system (vibrating mirror) controls the laser beam acts on the powder in the forming area, under the high laser energy density, the metal powder is completely melted, and after a layer of scan is completed, the piston is completed. The...

Claims

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Application Information

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IPC IPC(8): B22F10/28B22F10/62B33Y10/00B33Y40/20B33Y70/10C21D6/00C22C38/08
CPCB22F10/28B22F10/62C22C38/08C21D6/001B33Y10/00B33Y40/20B33Y70/10Y02P10/25
Inventor 区炳显王勤生陆瑶赵卫芳刘文俊王荣霞
Owner SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
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