Method for quickly preparing metallographic samples for AS7G03/AS8U3 aluminum alloy

A technology for metallographic samples and aluminum alloys, which is applied in the field of non-ferrous metal casting, can solve the problems of unclear metallographic photos, slow preparation, and no published patent documents have been found, and achieve good contrast display, simple operation, and easy implementation Effect

Active Publication Date: 2012-09-12
天津新立中合金集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in order to improve production efficiency and reduce metal burning loss, the pre-furnace metallographic analysis requires rapid analysis results. Rapid preparation of samples is an urgent problem to be solved
[0004] Through searching, no published patent documents related to this patent application have been found

Method used

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  • Method for quickly preparing metallographic samples for AS7G03/AS8U3 aluminum alloy
  • Method for quickly preparing metallographic samples for AS7G03/AS8U3 aluminum alloy
  • Method for quickly preparing metallographic samples for AS7G03/AS8U3 aluminum alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of preparation method of rapidly preparing AS7G03 aluminum alloy metallographic sample, the steps are:

[0031] 1. Sampling

[0032] The AS7G03 aluminum alloy ingot poured in front of the furnace was cut into samples with a side length of 18 mm and a height of 45 mm with a metallographic cutting machine.

[0033] 2. Grinding

[0034] 1) Flat bore, 320# water-grinding sandpaper, 400 rpm, first smooth the surrounding and sharp corners, then polish along the vertical direction of the cutting marks to remove the cutting marks, and make the sample a plane, which takes about 70 seconds;

[0035] 2) Coarse grinding, 800# water grinding sandpaper, 400 rpm, polishing along the vertical direction of the polishing mark, removing the rough mark of the previous step, it takes 20 seconds;

[0036] 3) Fine grinding, 800# metallographic sandpaper, 120 rpm, polishing along the vertical direction of the polishing marks, removing coarse grinding marks, takes 30 seconds;

[0037]...

Embodiment 2

[0045] A kind of preparation method of rapidly preparing AS8U3 aluminum alloy metallographic sample, the steps are:

[0046] 1. Sampling

[0047] The AS8U3 aluminum alloy ingot poured in front of the furnace was cut into samples with a side length of 16 mm and a height of 42 mm with a metallographic cutting machine.

[0048] 2. Grinding

[0049] 1) The bore is flat, 320# water-grinding sandpaper, 600 rpm, first smooth the surrounding and sharp corners, and then polish along the vertical direction of the cutting marks to remove the cutting marks and make the sample a plane, which takes about 70 seconds;

[0050] 2) Coarse grinding, 800# water grinding sandpaper, 500 rpm, polishing along the vertical direction of the polishing mark, removing the rough mark of the previous step, it takes 18 seconds;

[0051] 3) Fine grinding, 800# metallographic sandpaper, 100 rpm, polishing along the vertical direction of the polishing marks, removing coarse grinding marks, takes 30 seconds; ...

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Abstract

The invention relates to a method for quickly preparing metallographic samples for AS7G03 / AS8U3 aluminum alloy. In the method, two MC004-MPD-2W double-panel type metallographic grinding and polishing machines are used, NO.320 waterproof abrasive paper, NO.800 waterproof abrasive paper, NO800 metallographic abrasive paper and cashmere polishing cloth are respectively placed on four grinding and polishing discs, and the on-the-spot metallographic samples are quickly prepared by means of adjusting the rotation speed of each grinding and polishing machine. The on-the-spot metallographic samples are quickly prepared by means of adjusting the rotation speed of each grinding and polishing machine, an integral sample preparation process takes only 4-5 minutes, operation is simple and convenient, a contrast display effect is good, the method is easy to implement, repeatability is high, work efficiency can be improved by 4-5 times, cost is low, and the metallographic samples are particularly applicable to detecting metallographic structures of Al-Si alloy with modified Sb.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal casting, and relates to aluminum alloy metallographic samples, in particular to a preparation method for quickly preparing AS7G03 / AS8U3 aluminum alloy metallographic samples. Background technique [0002] The performance of aluminum alloy depends on its composition and microstructure, and the microstructure has a more direct impact on the performance of aluminum alloy. At present, there are many means and methods for detecting the microstructure of materials, such as electron scanning electron microscope, electron transmission electron microscope, electron probe, X-ray flaw detection and high power metallographic microscope, etc., which can be used to detect the microstructure of materials, but each equipment and use The methods have different emphasis on the detection parameters. In the aluminum alloy material manufacturing industry, it is very common and effective to use high-magnification meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/32
Inventor 翟盼盼于富星庞会霞霍会娟
Owner 天津新立中合金集团有限公司
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