CN111185854A - Spark spectrum analysis surface water jet cutting method - Google Patents
Spark spectrum analysis surface water jet cutting method Download PDFInfo
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- CN111185854A CN111185854A CN202010067258.9A CN202010067258A CN111185854A CN 111185854 A CN111185854 A CN 111185854A CN 202010067258 A CN202010067258 A CN 202010067258A CN 111185854 A CN111185854 A CN 111185854A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
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Abstract
The invention particularly relates to a spark spectrum analysis surface water jet cutting method. The technical scheme is as follows: installing a to-be-cut sample with a determined cutting line and a determined cutting point on a workpiece clamp of a water cutting machine; abrasive sand with the particle size of 0.14-0.2 mm is placed in a sand storage bin of a water cutting machine; and adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface. And starting the water cutting machine, adjusting the water pressure to 30-300 MPa, and cutting the sample. Drying the cut processing surface by using argon with the pressure of 1-5 MPa; and (4) placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of the spectral analysis of the spark source. The sample is a ferrous metal block or a non-ferrous metal block. The rated water pressure of the water cutting machine is more than 50 MPa. The abrasive sand is one of pomegranate sand, silicon carbide sand and corundum sand. The invention has the characteristics of no abrasion of the cutter, uniform roughness of the analysis surface, less burrs on the edge of the analysis surface and consistent roughness of the analysis surface processed by different samples.
Description
Technical Field
The invention belongs to the technical field of spark spectral analysis surface processing. In particular to a spark spectrum analysis surface water jet cutting method.
Background
At present, the working surface of the spark spectrum analysis of the metal block sample is widely processed by abrasive belt grinding and milling. Research shows that the flatness of the working surface has certain influence on the analysis result (Songhuafeng, Mianxinyu, Chengzhou, and the like. the spark source atomic emission spectrometry is used for measuring ultra-low carbon, nitrogen, phosphorus and sulfur [ J ]. metallurgy analysis 2008, 28 (10): 14-18), and particularly has great influence on the measurement of low content C, N, O. The basic requirements of the spectral analysis on the machined working surface are: the surface is smooth and clean, and no visible physical defects and oxides exist. However, the machining of the working surface is influenced by many factors, and the requirements for achieving a smooth and clean surface, no visible physical defects, and no oxides are different, and therefore the influence on the analysis results is also different.
Research reports (Yangxiang, Wanjuan, cun-Zheng, and the like. determination of nitrogen [ J ] in steel by spark source atomic emission spectrometry. metallurgical analysis, 2012, 32 (4): 36-40) show that different samples are respectively processed by two methods of milling machine polishing or sand paper grinding, and then are respectively excited on the surface of a working surface of the sample by a spectrometer, and after the samples are processed by the two sample preparation methods, the precision of analyzing N elements by the sample can meet the production requirements, and the consistency is better.
When the abrasive belt is used for grinding a sample, the new abrasive belt is rough, the ground working surface is also rough, the working surface ground by the new abrasive belt cannot be used generally, a standard sample is not ground at least by the new abrasive belt, the abrasive belt is too old and cannot be used, on one hand, the grinding efficiency is low, and on the other hand, the ground working surface is excessively flat. Generally, only 20-60 working faces can be ground by one abrasive belt.
When the milling machining is adopted, the situations are just opposite, the surface machined by the new milling cutter has overhigh flatness, and the surface of the working surface lacks point discharge points, so the milling cutter cannot be used. The old milling cutter (not ground after long-term use) has rough working surface due to more notches, and is not suitable for high-precision analysis. No matter the abrasive belt grinding or milling cutter milling, the processing process is the process of mutual grinding of contact surfaces, abrasion exists on the contact surfaces, fragments of damaged objects can be remained, heating and oxidation of different degrees can be generated, and therefore, the flatness, cleanliness and oxidation degree of a working surface of an analysis sample are difficult to keep consistent.
Zhang Zan et al (Zhang Zan, Zhang Zhong and.direct-reading spectral method for measuring the operation skill [ J ], physicochemical inspection-chemistry division, 2014, 51: 257 and 259) confirm the influence of the sample surface on the measurement of nitrogen by experiments, the sample surface is processed smoothly, and the three measurement values are close to each other; the processed lines on the surface of the sample are rough, and the fluctuation of the three measured values is large. Due to the influence of the carbon content, burrs may appear on the edges of some samples after the milling cutter is polished, so that light leakage is generated, and the analysis result is influenced.
In order to eliminate the influence of the sample processing on the analysis result, the newly processed working face is widely adopted in the industry to be analyzed as soon as possible, the surface is purged by high-purity argon before analysis, and an abrasive belt or a grinding milling cutter is replaced in time. This process, in part, solves the above problems and improves the accuracy of the analysis results, but still has the following problems: the abrasion of the milling cutter and the abrasive belt is a gradual change process, so that the roughness of the analysis surface processed secondarily is different no matter how the analysis surface is processed; the edge of the analysis surface is not flat and has more burrs; the flatness of the analysis surface is not high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and aims to provide a spark spectrum analysis surface water jet cutting method which has the advantages that the cutter abrasion has no influence on an analysis surface, the surface roughness is uniform, the edge burrs of the analysis surface are few, and the roughness of the analysis surface processed by different samples is consistent.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:
step one, installing a sample to be cut with the determined cutting line and cutting point on a workpiece clamp of a water cutting machine.
And step two, placing the abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine.
And step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface.
And step four, starting the water cutting machine, adjusting the water pressure to 30-300 MPa, and cutting the sample.
And fifthly, drying the cut processing surface by using argon with the pressure of 1-5 MPa.
And sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
The sample is a ferrous metal block or a non-ferrous metal block.
The rated water pressure of the water cutting machine is more than 50 MPa.
The abrasive sand is one of pomegranate sand, silicon carbide sand and corundum sand.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following positive effects:
1. the invention utilizes the water jet to cut, and the water recycles the grinding material for one time, so the cutter abrasion has no influence on the analysis surface.
2. The invention controls the roughness of the analysis surface by using the uniformity of the grinding material, so that the roughness of the analysis surface after secondary processing is uniform.
3. The invention utilizes the high-pressure water flow to drive the abrasive material to cut, so the edge burrs of the analysis surface are less.
4. The invention utilizes the grinding materials with the same sharpness to cut different samples, so that the roughness of the analysis surfaces processed by different samples is consistent.
Therefore, the invention has the characteristics of no influence of tool abrasion on an analysis surface, uniform roughness of the analysis surface, less burrs on the edge of the analysis surface and consistent roughness of the analysis surfaces processed by different samples.
Detailed Description
The invention is further described with reference to specific embodiments, without limiting its scope.
A spark spectrum analysis surface water jet cutting method. The method of the embodiment is as follows:
step one, installing a sample to be cut with the determined cutting line and cutting point on a workpiece clamp of a water cutting machine.
And step two, placing the abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine.
And step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface.
And step four, starting the water cutting machine, adjusting the water pressure to 30-300 MPa, and cutting the sample.
And fifthly, drying the cut processing surface by using argon with the pressure of 1-5 MPa.
And sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
The sample is a ferrous metal block or a non-ferrous metal block.
The rated water pressure of the water cutting machine is more than 50 MPa.
The abrasive sand is one of pomegranate sand, silicon carbide sand and corundum sand.
Example 1
A spark spectrum analysis surface water jet cutting method. The water jet cutting method in the embodiment comprises the following steps:
step one, installing a sample to be cut with the determined cutting line and cutting point on a workpiece clamp of a water cutting machine.
And step two, placing the abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine.
And step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface.
And step four, starting the water cutting machine, adjusting the water pressure to 30MPa, and cutting the sample.
And fifthly, drying the cut processing surface by using argon with the pressure of 1 MPa.
And sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
The sample is a ferrous metal block.
The rated water pressure of the water cutting machine is more than 50 MPa.
The abrasive sand is pomegranate sand.
Example 2
A spark spectrum analysis surface water jet cutting method. The water jet cutting method in the embodiment comprises the following steps:
step one, installing a sample to be cut with the determined cutting line and cutting point on a workpiece clamp of a water cutting machine.
And step two, placing the abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine.
And step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface.
And step four, starting the water cutting machine, adjusting the water pressure to 100MPa, and cutting the sample.
And fifthly, drying the cut processing surface by using argon with the pressure of 2 MPa.
And sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
The sample is a non-ferrous metal block.
The rated water pressure of the water cutting machine is more than 50 MPa.
The abrasive sand is silicon carbide sand.
Example 3
A spark spectrum analysis surface water jet cutting method. The water jet cutting method in the embodiment comprises the following steps:
step one, installing a sample to be cut with the determined cutting line and cutting point on a workpiece clamp of a water cutting machine.
And step two, placing the abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine.
And step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface.
And step four, starting the water cutting machine, adjusting the water pressure to 200MPa, and cutting the sample.
And fifthly, drying the cut processing surface by using argon with the pressure of 4 MPa.
And sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
The sample is a ferrous metal block.
The rated water pressure of the water cutting machine is more than 50 MPa.
The abrasive sand is corundum sand.
Example 4
A spark spectrum analysis surface water jet cutting method. The water jet cutting method in the embodiment comprises the following steps:
step one, installing a sample to be cut with the determined cutting line and cutting point on a workpiece clamp of a water cutting machine.
And step two, placing the abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine.
And step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface.
And step four, starting the water cutting machine, adjusting the water pressure to 300MPa, and cutting the sample.
And fifthly, drying the cut processing surface by using argon with the pressure of 5 MPa.
And sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
The sample is a non-ferrous metal block.
The rated water pressure of the water cutting machine is more than 50 MPa.
The abrasive sand is silicon carbide sand.
Compared with the prior art, the specific implementation mode has the following positive effects:
1. the water jet cutter is used for cutting, and the abrasive is recycled by water for one time, so that the abrasion of the cutter has no influence on an analysis surface.
2. The present embodiment controls the analysis surface roughness by using the uniformity of the abrasive, so that the analysis surface roughness after the secondary processing is uniform.
3. The embodiment utilizes the high-pressure water flow to drive the abrasive to cut, so the edge burrs of the analysis surface are less.
4. In the embodiment, different samples are cut by using the grinding materials with the same sharpness, so that the roughness of the analysis surfaces processed by different samples is consistent.
Therefore, the specific embodiment has the characteristics that the cutter abrasion has no influence on the analysis surface, the analysis surface has uniform roughness, the edge burrs of the analysis surface are less, and the roughness of the analysis surfaces processed by different samples is consistent.
Claims (4)
1. A spark spectrum analysis surface water jet cutting method is characterized in that the water jet cutting method comprises the following steps:
step one, installing a to-be-cut sample with a determined cutting line and a determined cutting point on a workpiece clamp of a water cutting machine;
step two, placing abrasive sand with the particle size of 0.14-0.2 mm into a sand storage bin of a water cutting machine;
step three, adjusting the processing surface of the cutter edge of the water cutting machine to be parallel to the water flow surface;
step four, starting a water cutting machine, adjusting the water pressure to be 30-300 MPa, and cutting a sample;
fifthly, drying the cut processing surface by using argon with the pressure of 1-5 MPa;
and sixthly, placing the dried sample on a spectrometer, and performing spectral analysis according to the requirement of spectral analysis of the spark source.
2. The spark spectroscopic surface water jet cutting method according to claim 1 wherein said sample is a ferrous metal block or a non-ferrous metal block.
3. The spark spectroscopic surface waterjet cutting method of claim 1 wherein the rated water pressure of the waterjet cutter is >50 MPa.
4. The spark spectroscopic analysis face water jet cutting method of claim 1 wherein said abrasive grit is one of garnet grit, silicon carbide grit and corundum grit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067258.9A CN111185854A (en) | 2020-01-20 | 2020-01-20 | Spark spectrum analysis surface water jet cutting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010067258.9A CN111185854A (en) | 2020-01-20 | 2020-01-20 | Spark spectrum analysis surface water jet cutting method |
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| CN111185854A true CN111185854A (en) | 2020-05-22 |
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Citations (6)
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| JP4517366B2 (en) * | 2005-10-24 | 2010-08-04 | 日本ビクター株式会社 | Sampling instrument |
| CN101799415A (en) * | 2010-03-04 | 2010-08-11 | 北京纳克分析仪器有限公司 | All-digital energy-adjustable spark light source |
| CN104458666A (en) * | 2014-12-31 | 2015-03-25 | 清华大学 | Solid sample on-line detection system and method based on laser-induced breakdown spectrum |
| CN106596214A (en) * | 2016-10-25 | 2017-04-26 | 常州苏晶电子材料有限公司 | Efficient preparation method of high purity aluminum gold-phase sample |
| CN108637915A (en) * | 2018-05-14 | 2018-10-12 | 苏州亨允晟机电科技有限公司 | A kind of punching of water jet and/or cutting mechanism |
| CN109490029A (en) * | 2017-09-13 | 2019-03-19 | 本特勒尔机械制造有限公司 | Method for manufacturing component sample |
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2020
- 2020-01-20 CN CN202010067258.9A patent/CN111185854A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4517366B2 (en) * | 2005-10-24 | 2010-08-04 | 日本ビクター株式会社 | Sampling instrument |
| CN101799415A (en) * | 2010-03-04 | 2010-08-11 | 北京纳克分析仪器有限公司 | All-digital energy-adjustable spark light source |
| CN104458666A (en) * | 2014-12-31 | 2015-03-25 | 清华大学 | Solid sample on-line detection system and method based on laser-induced breakdown spectrum |
| CN106596214A (en) * | 2016-10-25 | 2017-04-26 | 常州苏晶电子材料有限公司 | Efficient preparation method of high purity aluminum gold-phase sample |
| CN109490029A (en) * | 2017-09-13 | 2019-03-19 | 本特勒尔机械制造有限公司 | Method for manufacturing component sample |
| CN108637915A (en) * | 2018-05-14 | 2018-10-12 | 苏州亨允晟机电科技有限公司 | A kind of punching of water jet and/or cutting mechanism |
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| 于涛、刘文华: "高铬铸铁材质的鉴别与适用的切割办法", 《铸造设备与工艺》 * |
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