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Preparation method of MLA resin film serving as ore powder sample

A sample and resin technology, which is applied in the field of preparation of resin light sheet samples, can solve problems such as misleading inspection personnel in analysis and judgment, detection data deviation, etc., and achieves the effects of short process flow, low cost, and shortened static curing time

Inactive Publication Date: 2017-05-31
KUNMING METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality of the sample preparation directly affects the success of the test. The representativeness, flatness, particle cementation degree, particle dispersion degree, surface scratches and pitting of the powder resin sample. If these cannot be guaranteed, the test data will deviate. Misleading the analysis and judgment of inspectors

Method used

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  • Preparation method of MLA resin film serving as ore powder sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Crush and grind the loose massive bauxite ore sample to about 80% of -0.3mm, weigh 1g after shrinkage, put it in the oven for later use, and adjust the temperature of the oven to 60°C;

[0029] 2) Weigh 8g of Struers EpoFix resin and 0.8g of Struers EpoFix curing agent, stir for about 60s to make it evenly mixed, without filaments, inject it into the mold together with the sample to be used, stir for 95s, visually mix and then vacuum out the air bubbles, Let it stand for 4h to solidify;

[0030] 3) Cut the cured resin sample, cut two strips perpendicular to the surface of the sample, place the cross-section downwards, and place the particle-enriched side opposite in the mold, weigh 7.4g Struers EpoFix resin, 1.11g Struers EpoFix curing agent , Stir for about 1 minute and pour into the mold, vacuumize to remove air bubbles, and let it stand for about 3.5 hours to solidify.

[0031] 4) Grinding and polishing the cured product, using Struers grinding and polishing syst...

Embodiment 2

[0033] 1) Crush and grind the copper concentrate product until -0.3mm accounts for 60%, mix and shrink, weigh 1.6g, put it in an oven for later use, and adjust the oven temperature to 50°C.

[0034] 2) Weigh 5.7g of resin and 0.79g of curing agent, and stir rapidly for about 50s to make them evenly mixed without filaments. Pour it into the mold together with the sample to be used, stir for 85s, vacuumize after mixing to remove air bubbles, and let it stand for about 3.5 hours to solidify.

[0035] 3) Cut the cured resin sample, cut two strips vertically, place the cross-section down and the particle enriched side in the mold, weigh 7.8g Struers EpoFix resin, 0.78g Struers EpoFix curing agent, After stirring for 60s, pour it into the mold, vacuumize to remove air bubbles, and let it stand for 3.5 hours to solidify.

[0036] 4) Grinding and polishing the cured product, using Struers grinding and polishing system TegraSystem. Grinding uses silicon carbide sandpaper 180#, 320#, ...

Embodiment 3

[0038] 1) Crush and grind the lead-zinc ore until -0.3mm accounts for 70%, mix and shrink, weigh 2g, put it in an oven for later use, and adjust the oven temperature to 70°C.

[0039] 2) Weigh 5g of resin and 0.7g of curing agent, and stir rapidly for about 65s to make them evenly mixed without filaments. Pour it into the mold together with the sample to be used, stir for 75s, vacuumize after mixing to remove air bubbles, and let it stand for about 3 hours to solidify.

[0040] 3) Cut the cured resin sample, cut two strips vertically, place the cross-section down and the particle-enriched side in the mold, weigh 8.1g Struers EpoFix resin, 1.2g Struers EpoFix curing agent, After stirring for 65s, pour it into the mold, vacuum out the air bubbles, and let it stand for 4 hours to solidify.

[0041] 4) Grinding and polishing the cured product, using Struers grinding and polishing system TegraSystem. Grinding uses silicon carbide sandpaper 180#, 320#, 800#, 1200# for rough grindi...

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PUM

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Abstract

The invention discloses a preparation method of an MLA resin film serving as an ore powder sample. The preparation method comprises the following steps: sample pretreatment, first-time cold inlaying, second-time cold inlaying, and grinding and polishing. According to the preparation method disclosed by the invention, by adopting a process of the sample pretreatment, the first-time cold inlaying, the second-time cold inlaying, and the grinding and polishing and two inlaying of the powder sample in sequence, high representativeness and high dispersion degree of sample granules are guaranteed; according to the ratios of resin and a curing agent, enough operation time can be guaranteed; meanwhile, standing and curing time of a resin sample is shortened; the whole flow has the advantages of short process flow, obvious effect, high practicality and low cost.

Description

technical field [0001] The invention belongs to the technical field of mineral technology mineralogy, and in particular relates to a method for preparing a resin light sheet sample used for MLA detection and analysis. Background technique [0002] my country is one of the countries with a complete range of mineral resources and abundant reserves in the world, but the per capita possession is low, the demand for minerals is large, the utilization rate is not high, there are more lean ores and less rich ores, especially complex symbiotic ores, low-grade ores, and difficult to separate Mining, in order to alleviate the demand for my country's mineral resources and environmental pressure, mineral resources must be used efficiently and cleanly. my country's comprehensive utilization technology still stays in the traditional mineral processing and production process, and exploratory experiments are mostly carried out based on experience, especially for poor, miscellaneous and fine o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/32
CPCG01N1/28G01N1/32
Inventor 谢菱芳金自钦朱从杰任帅鹏吕向文袁威赵晖胡耀东
Owner KUNMING METALLURGY INST
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