Hastelloy electrolytic polishing process

An electrolytic polishing and Hastelloy technology, which is applied in the field of polishing technology to achieve the effect of good appearance, obvious metallic luster, and guaranteed processing quality.

Inactive Publication Date: 2015-04-22
SHENYANG FORTUNE PRECISION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Aiming at the above-mentioned technical problems, solve the problem that the surface of the workpiece is dark without obvious brightness and easy to form corrosion spots and mottled spots during the electrolytic polishing process of Hastelloy workpieces , the object of the present invention is to provide a Hastelloy electrolytic polishing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (3) Clean the workpiece after electropolishing in hot water at 38-42°C for 2 minutes and then dry it.

[0019] Example 2: The difference between this example and Example 1 is that the process parameters in this example are: the current density is controlled at 5A / dm 2 ; The technical parameters of the electrolytic polishing process are: temperature: 50°C, voltage: 8V, electrolytic polishing: 60s. The electropolishing tank uses titanium wire as the cathode, and the area of ​​the pole plate is 1 / 3 of the area of ​​the parts. After electropolishing, the workpiece was washed in hot water at 38°C for 2 min and then dried.

[0020] Example 3: The difference between this example and Example 1 is that the process parameters in this example are: the current density is controlled at 7A / dm 2 ; The technical parameters of the electrolytic polishing process are: temperature: 65°C, voltage: 12V, electrolytic polishing: 120s. The electropolishing tank uses titanium wire as the cath...

Embodiment 2

Embodiment 3

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PUM

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Abstract

The invention provides a hastelloy electrolytic polishing process, and belongs to the technical field of a polishing process. The specific steps are as follows: carrying out drying and cleaning pretreatments on a hastelloy electrolytic polishing workpiece to ensure that no redundant moisture is left on the surface of the workpiece; directly carrying out an electrolytic polishing treatment on the dry and clean workpiece; hanging the dry workpiece on a titanium alloy fixture, putting the titanium alloy fixture in an electric polishing groove, immediately electrifying constant voltage direct current, carrying out electrolytic polishing for 60-120 seconds, and controlling the current density at 5-7 A / dm<2>; cleaning the electrolytically polished workpiece in hot water of 38-42 DEG C for 2 minutes and drying the workpiece. According to the invention, a universal electrolytic polishing liquid reagent is adopted, and the pretreatment manner and the control process are adjusted, so that the appearance of the electrolytically polished surface of the hastelloy workpiece is good, the surface brightness is increased, the hastelloy workpiece has obvious metallic luster and has no spot corrosion, and the processing quality is effectively guaranteed.

Description

Technical field: [0001] The invention belongs to the technical field of polishing technology, in particular to a Hastelloy electrolytic polishing technology. Background technique: [0002] Hastelloy electrolytic polishing process has its special importance. Hastelloy electrolytic polishing requirements for IC equipment: the surface of the workpiece is dark and has no obvious metallic luster. Corrosion spots or spots are easy to form on the surface of the workpiece, which affects the function of the workpiece. The Hastelloy electrolytic polishing process is different from the electrolytic polishing of other stainless steel workpieces. The general electrolytic polishing process for Hastelloy alloy workpieces will cause the surface of the workpiece to become dark without obvious brightness and easily form corrosion spots and mottled spots, which cannot meet customer requirements. Contents of the invention [0003] In view of the above-mentioned technical problems, to so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/22
Inventor 张少杰
Owner SHENYANG FORTUNE PRECISION EQUIP CO LTD
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