Preparation method for test sample for alloy powder performance analysis and special compound crucible

A technology of alloy powder and test sample, which is applied in the field of metal powder detection and analysis, can solve the problems that the alloy powder cannot be directly tested, and the alloy powder is difficult to be heated by induction, so as to achieve the effect of ensuring uniformity, easy grasp, and no cracks

Inactive Publication Date: 2016-10-26
ADVANCED TECH BAZHOU SPECIAL POWDER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses a high-frequency furnace to inductively heat alloy powder in a ceramic crucible to prepare bulk test samples for performance analysis, especially spark direct-reading spectroscopy analysis, which solves the problem of alloy powder performance analysis, especially when spark direct-reading spectroscopy cannot be directly tested. alloy powder problem
The composite crucible solves the problem that the alloy powder is difficult to be induction heated in a high frequency induction furnace

Method used

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  • Preparation method for test sample for alloy powder performance analysis and special compound crucible
  • Preparation method for test sample for alloy powder performance analysis and special compound crucible

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Powder sample preparation: take alloy powder that has not been treated by induction heating ceramic crucible in a high-frequency furnace (choose 316L stainless steel alloy powder, alloy powder composition: C: 0.025, Si: 0.32, Mn: 0.15, P: 0.01, S: 0.0051, Cr: 16.28, Ni: 12.10, Mo: 2.55) 90 grams;

[0048] (2) Crucible preheating: put the ceramic crucible into the muffle furnace to preheat to 200°C and keep it warm for 2 hours;

[0049] (3) Load the powder sample: put 90 grams of the alloy powder prepared in step (1) into the preheated ceramic crucible, and shake it gently by hand (the purpose is to make the contact between the powder particles closer) to make the alloy powder Vibrate, and then put the ceramic crucible into the graphite sleeve on the induction coil of the high-frequency induction furnace;

[0050] (4) Vacuumizing and smelting: close the furnace cover of the high-frequency induction heating furnace, and vacuumize to 10 -4 Pa, and then filled with hi...

Embodiment 2

[0057] (1) Powder sample preparation: take the alloy powder that has not been processed by induction heating ceramic crucible in a high-frequency furnace (choose 17-4PH alloy powder, alloy powder composition: C: 0.034, Si: 0.35, Mn: 0.17, P: 0.014, S : 0.007, Cr: 16.32, Ni: 4.13, Cu: 4.01, Nb: 0.32) 90 grams;

[0058] (2) Crucible preheating: put the ceramic crucible into the muffle furnace to preheat to 200°C and keep it warm for 2 hours;

[0059] (3) Load the powder sample: put 90 grams of the alloy powder prepared in step (1) into the preheated ceramic crucible, vibrate the alloy powder gently by hand, and then put the ceramic crucible into the high-frequency induction furnace for induction In the graphite sleeve on the coil;

[0060] (4) Vacuumizing and smelting: close the furnace cover of the high-frequency induction heating furnace, and vacuumize to 10 -4 Pa, then filled with high-purity argon protection, under the protection of argon, the alloy powder is melted, the m...

Embodiment 3

[0067] (1) Powder sample preparation: take the alloy powder that has not been treated by induction heating the ceramic crucible in a high-frequency furnace (select XY05 alloy powder, alloy composition: Si: 1.11, Cr: 7.64, Ni: 4.03, Mo: 11.52, Co: 10.82) 90 grams;

[0068] (2) Crucible preheating: put the ceramic crucible into a muffle furnace to preheat to 200°C and keep it warm for 2 hours;

[0069] (3) Load the powder sample: put 90 grams of the alloy powder prepared in step (1) into the preheated ceramic crucible, vibrate the alloy powder gently by hand, then put the ceramic crucible into the graphite sleeve, and then Place the ceramic crucible with the graphite sleeve on the outside in the induction coil of the high-frequency induction furnace;

[0070] (4) Vacuumizing and smelting: close the furnace cover of the high-frequency induction heating furnace, and vacuumize to 10 -4 Pa, then filled with high-purity argon protection, under the protection of argon, the alloy pow...

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Abstract

The invention discloses a preparation method for a test sample for alloy powder performance analysis and a special compound crucible of the preparation method. The test sample is blocky. The preparation method includes the steps that alloy powder is added into a ceramic crucible with the exterior sleeved with a graphite sleeve, a high-frequency induction furnace is adopted to heat the ceramic crucible with the exterior sleeved with the graphite sleeve so that the alloy powder can be used for pouring after being molten, and the needed test sample is obtained. The compound crucible comprises the ceramic crucible and the graphite sleeve arranged on the exterior of the ceramic crucible in a sleeving manner. The high-frequency induction furnace carries out induction heating on the ceramic crucible; by adding the layer of graphite sleeve on the exterior of the ceramic crucible, the compound crucible is formed; the problem that induction heating on metal powder is difficult is solved; and the alloy powder sample obtained in the above manner is suitable for being used for spark direct reading spectrum testing.

Description

technical field [0001] The invention relates to a method for preparing a test sample for property analysis of alloy powder and a special compound crucible. The test sample is a block sample and belongs to the technical field of metal powder detection and analysis. Background technique [0002] The prepared alloy powder usually requires analysis of composition and various chemical and physical properties. Among the existing chemical composition analysis and testing technologies, spark direct reading spectroscopy has the advantages of high automation, fast analysis speed, accurate analysis results, wide analysis range, simple operation, etc., and is widely used in metallurgy, machinery, chemical industry, environmental protection and other fields . [0003] The basic requirements of spark direct reading spectroscopy for analyzing samples are massive metal solids, uniform and smooth analysis surface, no cracks, pores, oil, rust, etc. Samples are generally prepared for analysi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D35/06B22D35/04G01N1/44
CPCB22D35/06B22D35/04G01N1/44
Inventor 孟令兵麻洪秋赵同春张鹏黄赞军
Owner ADVANCED TECH BAZHOU SPECIAL POWDER CO LTD
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