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Surface treatment liquid and surface treatment device for 3D printing stainless steel parts

A surface treatment liquid, 3D printing technology, applied in machine tools suitable for grinding workpiece edges, surface polishing machine tools, polishing compositions containing abrasives, etc. question

Active Publication Date: 2020-10-23
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the polishing method in the prior art, such as high labor intensity, low efficiency, high cost, and inability to process complex parts, and provide a method that can improve the surface quality of 3D printed stainless steel parts, improve brightness, and reduce roughness. Surface treatment liquid and surface treatment device for 3D printing stainless steel parts

Method used

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  • Surface treatment liquid and surface treatment device for 3D printing stainless steel parts
  • Surface treatment liquid and surface treatment device for 3D printing stainless steel parts
  • Surface treatment liquid and surface treatment device for 3D printing stainless steel parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A surface treatment solution for 3D printing stainless steel parts, including alkaline cooking solution, pickling solution and chemical polishing solution:

[0055] The mass fraction ratio of sodium hydroxide, nitrate and chloride ion-containing salt in the soda cooking liquid is as follows: 10:5:0.15.

[0056] The nitrate is composed of sodium nitrate and sodium nitrite, and the mass-number ratio of sodium nitrate and sodium nitrite is 3:1.

[0057] The chloride-ion-containing salt is composed of sodium chloride and ferric chloride, and the mass-number ratio of sodium chloride and ferric chloride is 2.5:1.

[0058] The mass-number ratio of hydrochloric acid, sodium chloride, ferric chloride and corrosion inhibitor in the pickling solution is: 15: 3.2: 0.6: 0.2.

[0059] The corrosion inhibitor is composed of potassium iodide and rhodin, and the mass-number ratio of potassium iodide and rhodin is 2:1.

[0060] The chemical polishing liquid is made up of nano-scale sil...

Embodiment 2

[0083] Embodiment 2 comprises the solution preparation step and surface treatment device of embodiment 1, and the surface treatment liquid of embodiment 2 comprises alkali boiling liquid, pickling liquid and chemical polishing liquid:

[0084] The ratio in parts by mass of sodium hydroxide, nitrate and salt containing chloride ions in the caustic boiling liquid is as follows: 18:3:0.05.

[0085] The nitrate is composed of sodium nitrate and sodium nitrite, and the mass-number ratio of sodium nitrate and sodium nitrite is 5:1.

[0086] The chloride-ion-containing salt is composed of sodium chloride and ferric chloride, and the mass-number ratio of sodium chloride and ferric chloride is 1:1.

[0087] The mass-number ratio of hydrochloric acid, sodium chloride, ferric chloride and corrosion inhibitor in the pickling liquid is: 15:4:0.8:0.2.

[0088] The corrosion inhibitor is composed of potassium iodide and rhodin, and the mass-number ratio of potassium iodide and rhodin is 3:1...

Embodiment 3

[0101] Embodiment 3 comprises the solution preparation step and surface treatment device of embodiment 1, and the surface treatment liquid of embodiment 3 comprises alkali boiling liquid, pickling liquid and chemical polishing liquid:

[0102] The ratio in parts by mass of sodium hydroxide, nitrate and salt containing chloride ions in the soda cooking liquid is as follows: 15:5:0.1.

[0103] The nitrate is composed of sodium nitrate and sodium nitrite, and the mass-number ratio of sodium nitrate and sodium nitrite is 5:1.

[0104]The chloride-ion-containing salt is composed of sodium chloride and ferric chloride, and the mass-number ratio of sodium chloride and ferric chloride is 2.5:1.

[0105] The mass-number ratio of hydrochloric acid, sodium chloride, ferric chloride and corrosion inhibitor in the pickling solution is: 20:3.2:0.8:0.1;

[0106] The corrosion inhibitor is composed of potassium iodide and rhodin, and the mass-number ratio of potassium iodide and rhodin is 2:...

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Abstract

The invention discloses surface treatment liquid for 3D printed stainless steel parts and a surface treatment device. The surface treatment liquid comprises soda boiling liquid, a pickling solution and a chemical polishing solution. The soda boiling liquid is composed of sodium hydroxide, nitrates and salt containing chloride ions. The pickling solution is composed of hydrochloric acid, sodium chloride, ferric chloride and a corrosion inhibitor. The chemical polishing solution is composed of nano-scale silica abrasives, 36wt% of hydrochloric acid, 85wt% of phosphoric acid, 68wt% of nitric acid, a corrosion inhibitor, a viscosity modifier, a brightener, an OP-10 emulsifier, a complexing agent and deionized water. The surface treatment liquid for the 3D printed stainless steel parts and thesurface treatment device have the characteristics of effectively reducing the surface roughness of the 3D printed stainless steel parts, improving the surface flatness and being good in surface treatment quality and high in surface treatment efficiency.

Description

technical field [0001] The invention belongs to the technical field of metal 3D printing surface treatment, and in particular relates to a surface treatment liquid and a surface treatment device for 3D printing stainless steel parts. Background technique [0002] 3D printing is a kind of rapid prototyping manufacturing technology. Because of its advantages of convenience, high material utilization rate, and not being limited by the shape of parts, it has been widely used in the manufacture of tools in the field of machinery, parts in the field of biomedicine, and parts in the field of aerospace. Ultra-light components and other industries. [0003] Stainless steel is relatively common in people's lives, and its demand is increasing rapidly. It has the advantages of wear resistance, corrosion resistance, and good toughness. Stainless steel parts formed by metal 3D printing have the characteristics of high density and excellent mechanical properties compared with ordinary sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F3/06C23G1/19C23G1/08C09G1/02C23G3/00B24B1/04B24B31/10B24B31/12B24B31/14
CPCB24B1/04B24B31/10B24B31/12B24B31/14C09G1/02C23F3/06C23G1/08C23G1/19C23G3/00
Inventor 吕莎莎张林周成双
Owner ZHEJIANG UNIV OF TECH
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