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Clay or loose rock (sand) slice specimen preparation process

A loose and clay-based technology, applied in the field of rapid sample preparation for thin-section identification of clay or loose rock samples, can solve problems such as shedding, cumbersome procedures, and lengthy time, and achieve the effects of improving impact resistance, simple operation procedures, and improving work efficiency

Inactive Publication Date: 2004-11-17
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The disadvantages of the above-mentioned clay or loose rock (sand) sample preparation techniques are: the procedure is cumbersome, the time is lengthy, and some methods also need professional equipment
The process of "cooking glue" uses open fire to heat, which is not safe and produces a lot of harmful gases, which is not conducive to environmental protection
For clay and rock (sand) samples with fine particles, because the bonding strength with the binder is not enough to withstand the impact force during slicing and grinding, they often fall off. In addition, casting with epoxy resin-triethanolamine curing system The blank needs to be heated and matured, which takes a long time and low efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take 10 grams of clay sample and pour it into a 150ml beaker, add 100ml of "KH560" silicon coupling agent solution with a concentration of 2%, the clay will disperse after stirring for 2 minutes, put it in an ultrasonic cleaner, add water and the solution in the beaker to the cleaning tank The surface is the same, turn on the power, ultrasonically oscillate for 10 minutes, take out the beaker for filtration, and dry it together with the filter paper for later use; weigh 2 grams of the dried sample and pour it into a 10ml small beaker, mash it with a stirrer, and add "196" unsaturated polyester resin binder 5ml, add 0.2 mg of methyl ethyl ketone peroxide with a concentration of 100%, 0.15 ml of cobalt naphthalene with a concentration of 1%, shake on the oscillator for 3 minutes after stirring evenly, and turn off the power. After standing for 25 minutes, take it out and cut into slices.

Embodiment 2

[0017] Weigh 3 grams of the surface-modified and dried clay sample and pour it into a 20ml small beaker, mash it with a stirrer, add 10 milliliters of casting resin successively, 0.1 milliliter of methyl ethyl ketone peroxide with a concentration of 100%, and 0.1 milliliter of methyl ethyl ketone peroxide with a concentration of 1%. 0.2 ml of cobalt naphthalate, stirred evenly, oscillated on a shaker for 3 minutes, turned off the power, left it for 25 minutes, took it out and cut into tablets.

Embodiment 3

[0019] Weigh 5 grams of loose rock (sand) sample and pour it into a 100ml beaker, add 50ml of 2% "KH560" silicon coupling agent solution, soak for 5 minutes, filter and dry for later use. Weigh 2 grams of the dried sample and pour it into a 10ml small beaker, add 6ml of "S629" unsaturated polyester resin in turn, add 0.15ml of 100% concentration of methyl ethyl ketone peroxide, add 1.5% concentration of cobalt naphthalate, 0.1ml , after stirring evenly, vibrate on the shaker for 3 minutes, turn off the power, let it stand for 25 minutes, take it out and cut it into slices.

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PUM

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Abstract

The invention refers to a thin section sampling method for a kind of rock ore verification, especially refers to the quick sampling for clay and loose rock and sand sample. Takes the clay or loose rock (sand) samples fore preprocessing the thin section, uses surface activating agent to foam to preprocess, after beings filter and dried, adds in the bonding agent, firming agent and advancer, vibrates in the vibrator, then it can be grinded into pieces by the miller. It needn't special device, the process is simple, and the flow is short. And it generates no harm gas. The solidification time of original 'glue stewing method' is 1-4 hours, the method only need 20-25 minutes. The invention upgrades the efficiency for 4-10 times.

Description

Technical field: [0001] The invention relates to a rock and mineral thin section identification sample preparation method, in particular to a quick sample preparation method for thin section identification of clay or loose rock (sand) samples. Background technique: [0002] When the geological industry identifies rock minerals, it is first necessary to make rock mineral specimens into thin slices or light slices, and then observe the material composition, optical characteristics and structural structure of rock minerals under an optical microscope, describe and "name". The process of making thin slices is: use a microtome to cut the thin slices of the specified size, grind them on the grinder, stick them on the glass slide, and go through rough grinding, fine grinding and polishing until the thickness reaches the requirement (0.03mm )until. For clay and loose rock (sand) samples, because it is impossible to directly cut out a definite plane and stick it directly on the glas...

Claims

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Application Information

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IPC IPC(8): G01N1/06
Inventor 孙少波王璞珺刘万洙单玄龙程日辉尹振春
Owner JILIN UNIV
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