CN110208197B - Sample preparation method for small-size and irregular samples - Google Patents
Sample preparation method for small-size and irregular samples Download PDFInfo
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- CN110208197B CN110208197B CN201910581638.1A CN201910581638A CN110208197B CN 110208197 B CN110208197 B CN 110208197B CN 201910581638 A CN201910581638 A CN 201910581638A CN 110208197 B CN110208197 B CN 110208197B
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- 230000001788 irregular Effects 0.000 title claims abstract description 25
- 238000005464 sample preparation method Methods 0.000 title claims description 10
- 210000004907 gland Anatomy 0.000 claims abstract description 26
- 238000002360 preparation method Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 230000005284 excitation Effects 0.000 claims description 8
- 238000010183 spectrum analysis Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 abstract description 3
- 238000004611 spectroscopical analysis Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses clamping device and system appearance method of small-size and irregular sample, this clamping device, including the appearance be cylindrical structure's gland and clamping device main part and set up in the spring between gland and the clamping device main part, this system appearance method's step is as follows: placing a sample preparation mold on a hot-inlaying sample table, placing a sample in the center of the sample preparation mold, and carrying out hot-inlaying sample preparation on the sample preparation mold by using a hot-inlaying machine; demoulding the sample after sample preparation to obtain a T-shaped sample; grinding the detection surface of the sample to be flat and clean; the sample is placed in a holding device for direct-reading spectroscopic analysis. The invention can better solve the problem that small-size and irregular samples can not be detected in direct-reading spectrum, and reduces the requirements on the shape and size of the samples.
Description
Technical Field
The application belongs to the field of element detection chemical analysis, and particularly relates to a sample preparation method for small-size and irregular samples.
Background
The direct-reading spectral analysis technology is widely applied to the aspects of stokehole detection, metallurgical analysis and the like with high detection precision and high analysis speed. However, in the actual detection process, the sample with an irregular shape or a sample diameter smaller than the excitation hole of the direct-reading spectrum sample stage is often encountered, and at this time, it is difficult to directly detect the sample. At present, to the detection of this kind of small sample, drill chip chemistry detects commonly used, it is wasted time and energy, and small sample detection anchor clamps on the market, only be fit for the comparatively regular stick of analysis shape, the threadlike product, fixed centre gripping that can not be fine to the anomalous sample of shape, patent CN205607846U discloses a minor diameter steel bar sample direct reading spectrum appearance anchor clamps, the both sides of anchor clamps base are equipped with a location screw hole with cylindrical groove intercommunication respectively, two location screw hole levels just are just to setting up, two screws are twisted respectively soon and are played the effect of fixed sample in two location screw holes, it is difficult to fixed irregular sample to use two screws, and the direct handheld grinding appearance of small sample has certain potential safety hazard, system appearance and detection all have certain difficulty.
Disclosure of Invention
The invention aims to provide a clamping device for small-size and irregular samples and a sample preparation method, so as to overcome the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the application discloses clamping device of small-size and irregular sample, be the gland and the clamping device main part of cylinder structure including the appearance and set up in spring between gland and the clamping device main part, the clamping device main part is close to the concave fixed orifices that is equipped with in terminal surface center of gland one side, clamping device deviates from the concave sample hole that is equipped with in terminal surface center of gland one side, the sample hole communicate in the fixed orifices, the spring set up in the fixed orifices, the gland is close to the concave screw hole that is equipped with in terminal surface center of clamping device main part one side, the clamping device main part is close to the outer wall processing of the terminal surface of gland one side have with the screw hole corresponds the external screw thread that sets up.
Preferably, in the holding device for small and irregular samples, the diameter of the sample hole is smaller than that of the fixing hole.
Preferably, in the above-described clamping device for small and irregular samples, the depth of the threaded hole is the same as the length of the external thread.
Correspondingly, the application also discloses a sample preparation method of small-size and irregular samples, which comprises the following steps:
1) preparing a sample by using a sample preparation mold: placing a sample preparation mold on a sample platform of a thermal inlaying machine, placing a sample in the middle of a central hole of the sample preparation mold, filling a gap between the sample and the central hole of the sample preparation mold with a soft substance, and adding inlaying powder to the upper part of the sample preparation mold for thermal inlaying sample preparation;
2) demoulding of a sample preparation mould: demoulding the sample after sample preparation to obtain a T-shaped sample;
3) and grinding the sample: holding the sample holding end by hand, and grinding the sample end detection surface of the sample to be flat and clean by using an abrasive belt machine;
4) and detecting a sample: placing the sample in the holding device of small and irregular sample as claimed in claim 1 or 2, the sample end passing through the spring and the sample hole, the hand-held end being placed in the fixed hole, the bottom of the hand-held end contacting the upper end of the spring, placing the pressing cover on the upper end of the holding device body, rotating the pressing cover to connect the pressing cover with the positioning holding device body, stopping rotating the pressing cover when the bottom of the sample and the bottom of the positioning holding device body are on a plane, placing the positioning holding device on the excitation table for direct reading spectral analysis.
Compared with the prior art, the invention has the advantages that: the invention provides a clamping device for small-size and irregular samples and a sample preparation method, wherein the sample is embedded and prepared by a mould, the hand-held area of the sample is increased, the problem that the small-size and irregular samples are not easy to be hand-held and grinded is solved, the T-shaped sample is obtained after the sample is prepared by the mould, the limitation on the shape of the sample is reduced, the sample end is independent of the hand-held end, and the influence of the embedding material of the hand-held end on the detection result is avoided. The clamping device solves the problem that small and irregular samples are difficult to fix and position, expands the application range of the spark direct-reading spectrometer and ensures the accuracy of detection results.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a holding device for small and irregular samples according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a holding device for small and irregular samples according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a sample preparation mold according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a sample mold after demolding, according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 4, a clamping device for small-size and irregular samples includes a gland 1 and a clamping device body 2 with a cylindrical structure and a spring 3 arranged between the gland 1 and the clamping device body 2, a fixing hole 4 is concavely arranged in the center of the end surface of one side of the gland 2 close to the gland 1, a sample hole 5 is concavely arranged in the center of the end surface of one side of the clamping device departing from the gland 1, the sample hole 5 is communicated with the fixing hole 4, the diameter of the sample hole is smaller than that of the fixing hole, the spring 3 is arranged in the fixing hole 4, a threaded hole is concavely arranged in the center of the end surface of one side of the gland 1 close to the clamping device body 2, an external thread corresponding to the threaded hole is processed on the outer wall of the end surface of one side of the gland 1 close to the clamping device body 2, and the depth of the threaded hole is the same as the length of the external thread.
The sample is manufactured by hot inlaying a sample by utilizing a mould, the inlaying specification of a hot inlaying machine is 30mm, the exciting aperture of a spark direct-reading spectrometer is 12mm as an example, the outer diameter of the mould is 30mm, the diameter of a hole of the mould is 12mm, the sample is placed in the center of the hole of the mould shown in figure 3, a gap between the sample and the mould is filled with plasticine, hot inlaying is carried out, the sample is separated from the mould by a tool after the hot inlaying is finished, a T-shaped sample is obtained, the sample part in the mould protrudes out of an inlay material, the sample higher than the mould part is combined with the inlay material to obtain a preliminarily prepared sample, a hand-held sample holding end 6 polishes the detection surface of a sample detection end 7 by using an abrasive belt machine to enable the sample to be clean and flat, the sample is placed into a clamping device, the diameter of an exciting table gasket of the spark direct-reading spectrometer is 63mm, the exciting aperture is 12mm as an example, and the outer diameter of a main body of the clamping device is 63mm, the diameter of the upper fixing hole 4 of the clamping device main body 2 is consistent with the diameter of the sample handheld end 6, the diameter is 30mm, the diameter of the sample hole 5 is consistent with the diameter of the excitation aperture, the diameter is 12mm, the sample is placed in the clamping device, the sample and the bottom of the clamping device are arranged on the same plane through the gland 1 and the clamping device main body 2 in a rotating and adjusting mode, the clamping device with the sample is placed on the excitation table, the outer diameter of the clamping device is consistent with the outer diameter of the excitation table gasket, the diameter of the sample hole 5 is consistent with the hole of the excitation table gasket, the sample can be guaranteed to be just opposite to the center of the excitation table, and the sample can be accurately detected.
In summary, the invention provides a clamping device for small-size and irregular samples and a sample preparation method, after the samples are embedded and prepared by using a mold, the sample holding area is increased, the problem that the small-size and irregular samples are not easy to hold and grind the samples is solved, after the samples are prepared by using the mold, T-shaped samples are obtained, the limitation on the shape of the samples is reduced, the sample end is independent of the holding end, and the influence of the material embedding of the holding end on the detection result is avoided. The clamping device solves the problem that small and irregular samples are difficult to fix and position, expands the application range of the spark direct-reading spectrometer and ensures the accuracy of detection results.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (3)
1. A sample preparation method for small-size and irregular samples is characterized by comprising the following steps: the method comprises the following steps:
1) preparing a sample by using a sample preparation mold: placing a sample preparation mold on a sample platform of a thermal inlaying machine, placing a sample in the middle of a central hole of the sample preparation mold, filling a gap between the sample and the central hole of the sample preparation mold with a soft substance, and adding inlaying powder to the upper part of the sample preparation mold for thermal inlaying sample preparation;
2) demoulding of a sample preparation mould: demoulding the sample after sample preparation to obtain a T-shaped sample;
3) and grinding the sample: holding the sample holding end by hand, and grinding the sample end detection surface of the sample to be flat and clean by using an abrasive belt machine;
4) and detecting a sample: placing a sample in a clamping device of small-size and irregular samples, enabling a sample end to penetrate through a spring and a sample hole, enabling a handheld end to be placed in a fixed hole, enabling the bottom of the handheld end to be in contact with the upper end of the spring, placing a gland on the upper end of a clamping device main body, rotating the gland to enable the gland to be connected with a positioning and clamping device main body, stopping rotating the gland when the bottom end of the sample and the bottom of the positioning and clamping device main body are on the same plane, and placing the positioning and clamping device on an excitation table for direct-reading spectral analysis;
clamping device of small-size and irregular sample include that the appearance is the gland and the clamping device main part of cylinder structure and set up in spring between gland and the clamping device main part, the clamping device main part is close to the concave fixed orifices that is equipped with in terminal surface center of gland one side, clamping device deviates from the concave sample hole that is equipped with in terminal surface center of gland one side, the sample hole communicate in the fixed orifices, the spring set up in the fixed orifices, the gland is close to the concave screw hole that is equipped with in terminal surface center of clamping device main part one side, the clamping device main part is close to the outer wall processing of the terminal surface of gland one side have with the screw hole corresponds the external screw thread that sets up.
2. The method as claimed in claim 1, wherein the sample preparation method comprises the steps of: in the step 4, the diameter of the sample hole is smaller than that of the fixing hole.
3. The method as claimed in claim 1, wherein the sample preparation method comprises the steps of: in the step 4, the depth of the threaded hole is the same as the length of the external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581638.1A CN110208197B (en) | 2019-06-30 | 2019-06-30 | Sample preparation method for small-size and irregular samples |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581638.1A CN110208197B (en) | 2019-06-30 | 2019-06-30 | Sample preparation method for small-size and irregular samples |
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| Publication Number | Publication Date |
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| CN110208197A CN110208197A (en) | 2019-09-06 |
| CN110208197B true CN110208197B (en) | 2021-08-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272523B (en) * | 2020-01-21 | 2022-09-20 | 江苏省沙钢钢铁研究院有限公司 | Steel sample hot-inlaying feeding device and method with height-controllable inlaying blocks |
| CN112828688A (en) * | 2021-01-21 | 2021-05-25 | 深圳市东飞凌科技有限公司 | Electrode polishing method and jig |
| CN114235784A (en) * | 2021-12-01 | 2022-03-25 | 中铁九桥工程有限公司 | Welding wire detection method for spark type spectrometer |
| CN116558932B (en) * | 2023-07-07 | 2023-09-29 | 北京科技大学 | Method for preparing small-size sample by using large-size hot-inlaid machine |
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