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

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. problems, to achieve the effect of improved product corrosion resistance, high surface treatment efficiency and high efficiency

Active Publication Date: 2018-12-28
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 for 3D printed stainless steel parts and surface treatment device
  • Surface treatment liquid for 3D printed stainless steel parts and surface treatment device
  • Surface treatment liquid for 3D printed stainless steel parts and surface treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

[0056] Nitrate is composed of sodium nitrate and sodium nitrite, and the mass 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 ratio of sodium chloride and ferric chloride is 2.5:1.

[0058] The mass 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 ratio of potassium iodide and rhodin is 2:1.

[0060] The chemical polishing liquid is composed of nano-scale silica abrasive, 36wt% hydrochloric acid,...

Embodiment 2

[0083] Embodiment 2 includes the solution preparation step and surface treatment device of Embodiment 1, and the surface treatment solution of Embodiment 2 includes alkali cooking liquid, acid washing liquid and chemical polishing liquid:

[0084] The mass fraction ratio of sodium hydroxide, nitrate and chloride ion-containing salt in the alkaline cooking liquid is as follows: 18:3:0.05.

[0085] Nitrate is composed of sodium nitrate and sodium nitrite, and the mass 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 ratio of sodium chloride and ferric chloride is 1:1.

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

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

[0089] Nanoscale silica ...

Embodiment 3

[0101] Embodiment 3 includes the solution preparation step and surface treatment device of Embodiment 1, and the surface treatment solution of Embodiment 3 includes alkaline boiling liquid, acid washing liquid and chemical polishing liquid:

[0102] The mass fraction ratio of sodium hydroxide, nitrate, and chloride ion-containing salt in the alkaline cooking liquid is as follows: 15:5:0.1.

[0103] Nitrate is composed of sodium nitrate and sodium nitrite, and the mass 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 ratio of sodium chloride and ferric chloride is 2.5:1.

[0105] The mass fraction 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 ratio of potassium iodide and rhodin is 2:1.

[0107] Nan...

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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. It has been widely used in the manufacture of tools in the field of machinery, parts in the biomedical field, and parts in the aerospace field because of its advantages of convenience and speed, high material utilization, and no restrictions on the shape of the parts. Ultra-light components and many other industries. [0003] Stainless steel is more common in people's lives, and the demand is also increasing rapidly. It has the advantages of wear resistance, corrosion resistance, and good toughness. Compared with ordinary stainless steel parts, the stainless steel parts formed by metal 3D printing have the characteristics of high density and excel...

Claims

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Application Information

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Patent Type & Authority Applications(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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