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Method for removing hard multi-component nitride reaction film

A nitride and multi-component technology, applied in the field of removal of multi-component nitride hard reaction film, can solve the problems of chemical removal, difficulty in completely removing the film layer, long time, etc., and achieve simple removal process Clear, reproducible, easy-to-operate results

Inactive Publication Date: 2013-06-05
SHENYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main methods for removing films with poor quality are: 1. Mechanical polishing, which is only suitable for workpieces with simple surface shapes and easy grinding and polishing, but it is difficult to carry out for surfaces with slightly complicated shapes. In addition, in polishing During the process, it is easy to appear that the film layer is difficult to completely remove or scratch the surface of the workpiece; 2. Chemical removal, mainly using hydrogen peroxide solution to soak the coated workpiece, generally takes a long time and is not easy to remove

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Removal method of titanium aluminum nitride hard reaction film coated on stainless steel substrate

[0013] 1. Determination of raw materials for stripping solution: determine sodium gluconate, sodium hydroxide, and 30% H 2 o 2 Hydrogen peroxide, sodium dodecyl sulfonate, sodium tripolyphosphate, and distilled water are used as raw materials for preparing stripping solution.

[0014] 2. The preparation of stripping solution: in the first step, add 200 milliliters of distilled water with a mass percentage of 68% in the glass container; in the second step, add 6 grams of sodium gluconate with a mass percentage of 2% in the glass container, and stir until Completely dissolve; the third step is to slowly add 25 grams of sodium hydroxide with a mass percentage of 8.5% to the glass container, and stir rapidly while putting the medicine until it is completely dissolved. During the dissolution process, a certain amount of heat will be released, causing the temperature Slight ...

Embodiment 2

[0018] Removal method of titanium aluminum zirconium nitride hard reaction film coated on stainless steel substrate

[0019] 1. Determination of raw materials for stripping solution: determine sodium gluconate, sodium hydroxide, and 30% H 2 o 2 Hydrogen peroxide, sodium dodecyl sulfonate, sodium tripolyphosphate, and distilled water are used as raw materials for preparing stripping solution.

[0020] 2, the preparation of stripping solution: the first step, adding 200 milliliters of distilled water with a mass percentage of 67.8% in the glass container; the second step, adding 5 grams of sodium gluconate with a mass percentage of 1.7% in the glass container, stirring until Completely dissolve; the third step, slowly add 20 grams of sodium hydroxide with a mass percentage of 6.8% to the glass container, and stir rapidly while putting the medicine until it is completely dissolved. During the dissolution process, a certain amount of heat will be released, causing the temperature...

Embodiment 3

[0024] Removal method of titanium zirconium nitride hard reaction film coated on stainless steel substrate

[0025] 1. Determination of raw materials for stripping solution: determine sodium gluconate, sodium hydroxide, and 30% H 2 o 2 Hydrogen peroxide, sodium dodecyl sulfonate, sodium tripolyphosphate, and distilled water are used as raw materials for preparing stripping solution.

[0026] 2, the preparation of stripping solution: the first step, adding 200 milliliters of distilled water with a mass percentage of 63.8% in the glass container; the second step, adding 10 grams of sodium gluconate with a mass percentage of 3.2% in the glass container, stirring until Completely dissolve; the third step is to slowly add 30 grams of sodium hydroxide with a mass percentage of 9.6% to the glass container, and stir rapidly while putting the medicine until it is completely dissolved. During the dissolution process, a certain amount of heat will be released, causing the temperature Sli...

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Abstract

The invention relates to a method for removing a hard multi-component nitride reaction film, which comprises the following steps of: determining sodium gluconate, sodium hydroxide, hydrogen peroxide containing 30% H2O2, sodium dodecyl sulfate, sodium tripolyphosphate and distilled water as raw materials to prepare a removing liquid; preparing the removing liquid; and determining the removing technology. The method is simple and convenient to operate, and coating film layers on the surfaces of various shapes of workpieces can be completely removed.

Description

technical field [0001] The invention relates to a stripping method of a nitride film, in particular to a stripping method of a multi-component nitride hard reaction film prepared by vacuum coating technology. Background technique [0002] Vacuum coating technology is widely used in the preparation process of various hard reactive films, which plays a good role in modifying the surface strengthening of knives, molds and other wear-resistant parts. The early hard reaction film was mainly titanium nitride (TiN), and gradually developed into multi-component nitride hard films such as titanium aluminum nitride (TiAlN), titanium zirconium nitride (TiZrN) and titanium aluminum zirconium nitride (TiAlZrN). reactive film. However, due to various reasons such as the surface treatment of the plated parts and the control of the vacuum coating process, the quality of the coating film often appears poor, for example, the hardness is not high enough, the adhesion is not strong, and the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/14
Inventor 张钧贾恒陈蒙田录赵时璐姚志敏
Owner SHENYANG UNIV