Irregular shape nonporous solid density detection method and apparatus thereof

An irregular and solid technology, applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve the problems of troublesome solid sample measurement, inaccurate volume test, easy to pollute samples, etc., to achieve simple and accurate solid density, accurate drainage volume, The effect of improving detection accuracy

Inactive Publication Date: 2018-04-20
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For objects with irregular shapes, it is difficult to accurately calculate the volume V, so the calculated density ρ is rough and imprecise
For the commonly used drainage method, the measurement of mass is relatively accurate, but the measurement error of volume is relatively large, and it is easy to contaminate the sample when binding the sample, resulting in a decrease in accuracy
Some solid samples will absorb water, resulting in inaccurate volume testing; there are also solid samples that float on the water surface during testing, which is more troublesome to measure

Method used

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  • Irregular shape nonporous solid density detection method and apparatus thereof
  • Irregular shape nonporous solid density detection method and apparatus thereof
  • Irregular shape nonporous solid density detection method and apparatus thereof

Examples

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Embodiment 1

[0020] A device for detecting the density of an irregularly shaped non-porous solid, comprising a polytetrafluoroethylene container 1, a temperature measuring port 2, a solid test block 3, an overflow pipe 5, a ball valve 6 and a water container 7. It is characterized in that there is a solid test block 3 in the polytetrafluoroethylene container 1, an overflow pipe 5 is arranged on the wall of the polytetrafluoroethylene container 1 above the solid test block 3, and a ball valve 6 is arranged at the bottom of the overflow pipe 5, and the overflow pipe The outlet of 5 enters the inlet of the water container 7, and the temperature measuring port 2 is located between the solid test baffle plate 3 and the overflow pipe 5.

[0021] A kind of detection method of the non-porous solid density of irregular shape of the present invention, selects solid to be the pine wood of density less than water, comprises the following steps:

[0022] (1) Slowly add deionized water 4 into the polyte...

Embodiment 2

[0031] A method for detecting the density of an irregular-shaped non-porous solid of the present invention selects the solid as a plastic having a similar density to water, comprising the following steps:

[0032] (1) Slowly add deionized water 4 into the polytetrafluoroethylene container 1, stop adding after the deionized water 4 has passed through the overflow pipe 5, and close the ball valve 6 after the deionized water 4 stops flowing out;

[0033] (2) Place the sample to be tested in an oven, set the temperature at 110°C, bake for 2 hours, weigh 3 times, the weight is 2.3642g, 2.3645g, 2.3648g, the error is less than 0.001, take m=2.3645g, and evenly coat the solid surface Cover with a layer of vaseline, and weigh it three times, the weights are 2.3726g, 2.3725g, 2.3727g respectively, take m 0 =2.3725g;

[0034] (3) Clamp the sample with polytetrafluoroethylene tweezers, exhaust the adsorption air bubbles on the surface of the sample, and slowly place it under the solid t...

Embodiment 3

[0042] A method for detecting the density of an irregular-shaped non-porous solid according to the present invention, wherein the solid is selected as a metal-based composite material with a density greater than that of water, comprising the following steps:

[0043] (1) Slowly add deionized water 4 into the polytetrafluoroethylene container 1, stop adding after the deionized water 4 has passed through the overflow pipe 5, and close the ball valve 6 after the deionized water 4 stops flowing out;

[0044] (2) Place the sample to be tested in an oven, set the temperature at 110°C, bake for 2 hours, weigh 3 times, the weight is 5.6793g, 5.6798g, 5.6795g, the error is less than 0.001, take m=5.6795g, and evenly coat the solid surface Cover with a layer of vaseline, and weigh it three times, the weights are 5.6834g, 5.6838g, 5.6840g respectively, take m 0 =5.6837g;

[0045] (3) Clamp the sample with polytetrafluoroethylene tweezers, exhaust the adsorption air bubbles on the surfac...

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Abstract

The invention relates to an irregular shape nonporous solid density detection method. The method is characterized in that deionized water is added in a polytetrafluoroethylene container, addition of the deionized water stops after the deionized water submerges an overflow pipe, after flowing out of the deionized water stops, a ball valve is closed and the container is weighted, a to-be-measured sample is weighted, the surface of a solid is uniformly coated with a layer of Vaseline, then weighting is carried out, the sample is placed below a solid test baffle plate in the container, after a liquid surface is stable, the ball valve is opened, after water is completely discharged, the container is weighted, the solid density is calculated, 3 blocks of each sample are prepared for testing, andan average value of test results is taken. The method has the advantages of rapidity and accuracy, and aims at any irregular shapes.

Description

technical field [0001] The invention belongs to a method and a device for detecting the density of an irregular-shaped non-porous solid. Background technique [0002] Solid density is an important physical property of solid, which is closely related to solid mechanical properties and solid utilization. It is an important index to evaluate the characteristics of solid quality and strength. Density definition ρ=m / V (m, V are the mass and volume of the solid, respectively). For objects with irregular shapes, it is difficult to accurately calculate the volume V, so the calculated density ρ is rough and imprecise. For the commonly used drainage method, the measurement of mass is relatively accurate, but the measurement error of volume is relatively large, and the sample is easily contaminated when binding the sample, resulting in a decrease in accuracy. Some solid samples will absorb water, resulting in inaccurate volume measurements; there are also solid samples that float on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/02
CPCG01N9/02G01N2009/026
Inventor 刘犇张东卿闫曦李香粉刘占军郭全贵
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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