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3D printing high-wear-resistance stainless steel material, preparation method and application of material

A 3D printing and stainless steel technology, applied in the direction of additive processing, etc., can solve the problems of large internal stress, poor wear resistance, large temperature gradient of formed parts, etc., and achieve small material deformation, good corrosion resistance, and good wear resistance Effect

Inactive Publication Date: 2020-06-19
上海镭镆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the 3D printing process, the temperature gradient of the molded part is large, resulting in a large internal stress of the part, which is prone to deformation and cracking
Although this type of mold steel material has good corrosion resistance, it has poor wear resistance.
During the use of the mold, it is easy to wear and tear, which cannot meet the mold with high wear resistance requirements

Method used

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  • 3D printing high-wear-resistance stainless steel material, preparation method and application of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A 3D printing high wear-resistant stainless steel material, including the powder of the following components:

[0020] Chromium 12.5wt%, Nickel 8.1wt%, Molybdenum 2.5wt%, Aluminum 1.2wt%, Silicon 0.1wt%, Manganese 0.2wt%, Niobium 0.4wt%, Vanadium 0.3wt%, Titanium 0.1wt%, 0.02wt% nitrogen, 0.21wt% carbon, and the rest is iron.

[0021] The preparation method is:

[0022] Step 1: Weigh raw materials in proportion;

[0023] Step 2: The metal powder is produced by vacuum melting and gas atomization method; the melting temperature is 1550°C, the vacuum degree is 3Pa, and the atomization pressure is 3MPa; the powder shape obtained by vacuum melting and gas atomization method is spherical, and the powder particle size distribution is between 15- 53μm, the powder oxygen content is 600ppm.

[0024] Use the above 3D printing high wear-resistant stainless steel materials for 3D printing to manufacture molds:

[0025] Step a: Part Printing

[0026] Use 3D printing stainless st...

Embodiment 2

[0033] A 3D printing high wear-resistant stainless steel material, including the powder of the following components:

[0034] Chromium 11.8wt%, Nickel 8.3wt%, Molybdenum 2.3wt%, Aluminum 1.4wt%, Silicon 0.2wt%, Manganese 0.4wt%, Niobium 0.3wt%, Vanadium 0.4wt%, Titanium 0.2wt%, 0.02wt% nitrogen, 0.22wt% carbon, and the rest is iron.

[0035] The preparation method is:

[0036] Step 1: Weigh raw materials in proportion;

[0037] Step 2: The metal powder is produced by vacuum melting and gas atomization method; the melting temperature is 1530°C, the vacuum degree is 3Pa, and the atomization pressure is 3Mpa; the shape of the powder obtained by vacuum melting and gas atomization method is spherical, and the particle size distribution of the powder is between 15- 53μm, the powder oxygen content is 800ppm.

[0038] Use the above 3D printing high wear-resistant stainless steel materials for 3D printing to manufacture molds:

[0039] Step a: Part Printing

[0040] Use 3D printin...

Embodiment 3

[0047] A 3D printing high wear-resistant stainless steel material, including the powder of the following components:

[0048] Chromium 12.2wt%, nickel 7.6wt%, molybdenum 2.2wt%, aluminum 1.0wt%, silicon 0.1wt%, manganese 0.1wt%, niobium 0.5wt%, vanadium 0.1wt%, titanium 0.5wt%, 0.03wt% nitrogen, 0.23wt% carbon, and the rest is iron.

[0049] The preparation method is:

[0050] Step 1: Weigh raw materials in proportion;

[0051] Step 2: The metal powder is produced by vacuum melting and gas atomization method; the melting temperature is 1590°C, the vacuum degree is 3Pa, and the atomization pressure is 3MPa; the powder shape obtained by vacuum melting and gas atomization method is spherical, and the powder particle size distribution is between 15- 53μm, the powder oxygen content is 800ppm.

[0052] Use the above 3D printing high wear-resistant stainless steel materials for 3D printing to manufacture molds:

[0053] Step a: Part Printing

[0054] Use 3D printing stainless st...

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Abstract

The invention discloses a 3D printing high-wear-resistance stainless steel material, a preparation method and application of the material in manufacture of a 3D printing mold. The 3D printing high-wear-resistance stainless steel material comprises, by mass, 10.0-14.0% of a chrome element, 6.0-9.0% of a nickel element, 1.0-3.0% of a molybdenum element, 0.5-1.5% of an aluminum element, 0-0.5% of a silicon element, 0-0.5% of a manganese element, 0-1.0% of a niobium element, 0-0.5% of a vanadium element, 0-1.0% of a titanium element, 0-0.08% of a nitrogen element, 0.1-0.3% of a carbon element andthe balance iron element. A vacuum smelting gas atomization method is adopted for mixing all the materials to prepare 3D printing stainless steel metal powder, namely the 3D printing high-wear-resistance stainless steel material. The 3D printing high-wear-resistance stainless steel material is good in wear resistance and corrosion resistance and high in rigidity, and deforms less and does not crack in the 3D printing formation process.

Description

technical field [0001] The invention relates to a 3D printing stainless steel material and a molding process thereof, belonging to the technical field of 3D printing. Background technique [0002] 3D printing is an advanced additive manufacturing technology, which has the advantages of not being affected by the complexity of parts, short production cycle and high degree of customization. At present, the use of 3D printing technology to produce molds has gradually begun. During the 3D printing process, the temperature gradient of the molded parts is large, resulting in high internal stress of the parts, which are prone to deformation and cracking. Precipitation-hardening stainless steel materials such as Corrax and 17-4PH are selected as 3D printing mold steel materials because of their small 3D printing stress, easy molding and simple heat treatment process. Although this type of die steel material has good corrosion resistance, it has poor wear resistance. During the use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/50C22C38/48C22C38/46C22C38/44C22C38/06C22C38/04C22C38/02C22C33/02B22F9/08B33Y70/00
CPCB22F9/082B22F2009/0824B33Y70/00C22C33/0285C22C38/02C22C38/04C22C38/06C22C38/44C22C38/46C22C38/48C22C38/50
Inventor 吴巧巧于鹏超王克文牛洁张国良
Owner 上海镭镆科技有限公司
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