JPH0431738A - Method for preparing sample for analyzing elements in steel material - Google Patents
Method for preparing sample for analyzing elements in steel materialInfo
- Publication number
- JPH0431738A JPH0431738A JP2137900A JP13790090A JPH0431738A JP H0431738 A JPH0431738 A JP H0431738A JP 2137900 A JP2137900 A JP 2137900A JP 13790090 A JP13790090 A JP 13790090A JP H0431738 A JPH0431738 A JP H0431738A
- Authority
- JP
- Japan
- Prior art keywords
- sample
- shaped sample
- cutting
- disk
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 title claims description 4
- 239000000523 sample Substances 0.000 claims description 62
- 238000004458 analytical method Methods 0.000 claims description 20
- 238000004080 punching Methods 0.000 claims description 4
- 238000000921 elemental analysis Methods 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 238000005498 polishing Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004611 spectroscopical analysis Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005464 sample preparation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は鋼材の微量成分分析用試料調製方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for preparing a sample for analyzing trace components of steel materials.
（従来の技術）
製鉄業の製鋼工程においては、鋼の精錬過程で鋼材とな
る溶鋼中の５元素等の成分調製のためにサンプル採取用
鋳型を用いて、第１図に示すように、例えば、約３０ｍ
ｍ径の筒状サンプル］を採取する。採取した溶鋼サンプ
ル１は凝固後、例えば、高速砥石切断機（図示せず）等
を用いて切断した後、切断面の酸化層及び切断面に付着
した砥石の粒子を除去するため、サンダーベルトやグラ
インダー（図示せず）等で研磨して、元素を分光分析す
る試料２としている。(Prior art) In the steelmaking process of the iron and steel industry, sample collection molds are used to prepare the five elements in molten steel that becomes steel during the steel refining process. , about 30m
Collect a cylindrical sample with a diameter of m. After the collected molten steel sample 1 has solidified, it is cut using a high-speed grindstone cutter (not shown), for example, and then cut with a sander belt or a It is polished with a grinder (not shown) or the like to obtain a sample 2 for elemental spectroscopic analysis.
また、微量成分分析（例えば、極低炭素鋼の炭素等）や
ガス成分分析（例えば窒素等）の分析試料３は第２図に
示すように、上記筒状サンプル１を、低速砥石切断機（
図示せず）を用いて３〜５１１こ輪切りにし、得られた
ディスク状サンプル素材４を研磨、洗浄して調製し、更
に、油圧装置等（図示せず）を用いて小片を打ち抜きピ
ース状サンプル３に調製している。In addition, as shown in FIG. 2, the analysis sample 3 for trace component analysis (for example, carbon in ultra-low carbon steel) or gas component analysis (for example, nitrogen, etc.) is prepared by cutting the cylindrical sample 1 using a low-speed grindstone cutting machine (
The obtained disk-shaped sample material 4 is prepared by polishing and washing, and then punched into small pieces using a hydraulic device or the like (not shown) to obtain a piece-shaped sample. 3.
あるいは、第３図に示すように、上記筒状サンプル１を
、ボール盤（図示せず）を用いて所定量切り込み、この
表層部分のキリコを除去した後、更に切り込みキリコ状
サンプル５を調製している。Alternatively, as shown in FIG. 3, the cylindrical sample 1 is incised by a predetermined amount using a drill press (not shown), and after removing the slits on the surface layer, the cylindrical sample 1 is further incised to prepare a slit-shaped sample 5. There is.
あるいは第４図に示すように、上記筒状サンプル１とは
別に、例えば、直径６＋ａｍ、長さ１００＋ａｍのピン
状サンプル素材６を採取し、このピン状サンプル６の表
面をサンダーベルトやグラインダー（図示せず）等で研
磨した後、所定の長さに切断して微量成分分析あるいは
ガス成分分析用試料７を調製している。Alternatively, as shown in FIG. 4, apart from the cylindrical sample 1, for example, a pin-shaped sample material 6 with a diameter of 6+am and a length of 100+am is taken, and the surface of this pin-shaped sample 6 is cut using a sander belt or a grinder (see FIG. After polishing with a polishing tool (not shown), etc., the sample 7 is cut into a predetermined length to prepare a sample 7 for trace component analysis or gas component analysis.
（発明が解決しようとする課題）
従来技術による試料調製法では、砥石切断機を用いて切
断するときの摩擦熱によって、切断面が加熱され、変質
するという問題がある。この問題を解消するためにブロ
ック状サンプル１の切断面をサンダーベルトやグライン
ダー等による研磨作業が必要となる。(Problems to be Solved by the Invention) In the sample preparation method according to the prior art, there is a problem in that the cut surface is heated due to frictional heat when cutting using a grindstone cutting machine, resulting in deterioration in quality. In order to solve this problem, it is necessary to polish the cut surface of the block-shaped sample 1 using a sander belt, a grinder, or the like.
また、砥石切断機、サンダーベルトやグラインダー等の
研磨機を用いて切断あるいは研磨すると、使用する砥石
あるいは研磨部材は鉱物その他の粒子を結合剤で結合し
た構造体あるいは焼結体であり、切断あるいは研磨過程
において砥石の粒子、研磨剤の粒子が剥離・分離し、こ
れらの粒子がサンプルの分析面に機械的に付着すること
が避けられない。In addition, when cutting or polishing is performed using a grinding machine such as a grindstone cutting machine, a sander belt, or a grinder, the grindstone or polishing member used is a structure or sintered body made of minerals or other particles bonded with a binder, and the cutting or polishing During the polishing process, the particles of the grinding wheel and the particles of the abrasive are peeled off and separated, and it is inevitable that these particles will mechanically adhere to the analysis surface of the sample.
これらの付着粒子は発光分光分析に不純物として関与し
分析誤差になる。特に、微量成分分析の場合その影響が
大きいため、前記したように別途分析試料を調製すると
いう煩雑さが発生していた。These attached particles participate as impurities in the emission spectroscopic analysis and cause analysis errors. Particularly, in the case of trace component analysis, the influence is large, resulting in the complication of separately preparing an analysis sample as described above.
また、従来の試料調製方法では調製工程が多いことによ
り、長時間を費やすばかりか、複数の調製設備、分析設
備を必要とし作業能率の低下を招いている。Furthermore, the conventional sample preparation method involves many preparation steps, which not only takes a long time, but also requires multiple preparation equipment and analysis equipment, resulting in a decrease in work efficiency.
（課題を解決するための手段）
本発明者等は分光分析、微量成分分析及びガス成分分析
用試料の切削態様について検討したところ、消耗を殆ど
無視できる超硬質チップ切削刃を用いた丸鋸切断機を使
用することにより、砥石切断に見られるような切断面の
空気酸化による変質及び砥石粒子の付着汚染等が全くな
いと考えられることに着目してなしたものであって、溶
鋼中から採取した筒状凝固サンプルの所定の胴部位置を
、超硬質チップを切断刃とした丸鋸を用いて２回輪切り
して一切断面を有するブロック状サンプルとディスク状
サンプル素材を調製し、該ディスク状サンプル素材を更
に複数個打ち抜いてピース状サンプルを調製し、上記ブ
ロック状サンプルとピース状サンプルをそれぞれ分析試
料とすることを特徴とする鋼材中元素分析用サンプルの
調製方法である。(Means for Solving the Problems) The present inventors investigated the cutting mode of samples for spectroscopic analysis, trace component analysis, and gas component analysis, and found that circular saw cutting using an ultra-hard chip cutting blade that can almost ignore wear and tear. This was done based on the fact that by using a cutting machine, there is no deterioration of the cut surface due to air oxidation or adhesion of grinding stone particles, which is seen when cutting with a whetstone. A predetermined body position of the cylindrical solidified sample was sliced twice using a circular saw with an ultra-hard tip as a cutting blade to prepare a block-shaped sample and a disk-shaped sample material having a complete cross section. This method of preparing a sample for elemental analysis in steel is characterized by further punching out a plurality of sample materials to prepare piece-like samples, and using the block-like sample and the piece-like sample as analysis samples, respectively.
（作 用）
本発明は、鋼材サンプルである筒状サンプル１の切断を
超硬質チップ切削刃を用いた丸鋸切断機で行う。この超
硬質チップ切削刃は長期の使用でその切削性が若干低下
するが、その磨耗量は実質的に無視できるので、切削刃
から分析精度に影響する不純物の関与はないと考えられ
る。(Function) In the present invention, a cylindrical sample 1, which is a steel sample, is cut by a circular saw cutting machine using an ultra-hard tip cutting blade. Although the cutting performance of this ultra-hard chip cutting blade deteriorates slightly with long-term use, the amount of wear is virtually negligible, so it is thought that impurities from the cutting blade that affect analysis accuracy are not involved.
また、超硬質チップ切削刃を用いた丸鋸切断機では２〜
５龍の薄いディスク状サンプル素材４を素早く切断可能
であり、しかも切削時の摩擦による発熱が殆ど見られな
いので、ブロック状サンプル２及びディスク状サンプル
素材４の試料調製面の変質がない。In addition, a circular saw cutting machine using an ultra-hard chip cutting blade has a
The thin disc-shaped sample material 4 of 5 dragons can be cut quickly, and there is almost no heat generation due to friction during cutting, so there is no deterioration of the sample preparation surfaces of the block-shaped sample 2 and the disc-shaped sample material 4.
従って、本発明では、筒状サンプル１を超硬質チップ切
削刃を用いた丸鋸切断機を用いて２回輪切りにすると一
切断面を有するブロック状サンプル２と例えば、厚みが
３〜５■のディスク状サンプル素材４が直ちに調製でき
ることとなる。Therefore, in the present invention, when the cylindrical sample 1 is sliced twice using a circular saw cutting machine using an ultra-hard chip cutting blade, a block-shaped sample 2 having a complete cross-section and a disk having a thickness of 3 to 5 cm, for example, are cut into rings. The sample material 4 can be prepared immediately.
上記ディスク状サンプル素材４は微量成分分析とかガス
成分分析用試料とするために、例えば、油圧打ち抜き装
置（図示せず）を用いて第２図に示した形態のピース状
サンプル３を調製する。In order to use the disc-shaped sample material 4 as a sample for trace component analysis or gas component analysis, a piece-shaped sample 3 in the form shown in FIG. 2 is prepared using, for example, a hydraulic punching device (not shown).
（発明の効果）
本発明によると、サンプル切断面において問題となって
いる空気酸化及び砥石粒子の付着汚染現象は全く認めら
れず、分光分析及び微量成分分析の分析誤差として関与
しないので問題なく適用できる。(Effects of the Invention) According to the present invention, air oxidation and adhesion contamination phenomena of grindstone particles, which are problems on sample cut surfaces, are not observed at all, and they do not contribute to analytical errors in spectroscopic analysis and trace component analysis, so they can be applied without problems. can.
また、切断あるいは切断後の打ち抜きによって分析用試
料が調製できるので、従来の調製法で避けられなかった
研磨工程を削除できるので、数百側というように累積す
ると大幅な調製時間短縮となる。In addition, since samples for analysis can be prepared by cutting or punching after cutting, the polishing step that was unavoidable in conventional preparation methods can be omitted, resulting in a significant reduction in preparation time when the sample is accumulated in the hundreds.
また、本発明によると精度保証のために異なる形態のサ
ンプルを調製し別途分析するという必要がないので、複
数の試料調製設備を必要としない等、設備装備及び分析
作業面の効果は計り知れない。Furthermore, according to the present invention, there is no need to prepare samples in different formats and analyze them separately to ensure accuracy, so there is no need for multiple sample preparation equipment, and the effects on equipment and analysis work are immeasurable. .
第１図は筒状サンプルの丸鋸切断機による切断態様の説
明図、第２図はディスク状サンプル素材からピース状サ
ンプルの調製態様の説明図、第３図は筒状サンプルから
キリコ状サンプルの調製態様の説明図、第４図はピン状
サンプルからピース状サンプルの調製態様の説明図であ
る。
図中１は筒状サンプル、２はブロック状サンプル、３は
ピース状サンプル、４はディスク状サンプル素材、５は
ビン状サンプル素材、６はピース状サンプル。
第３図
第Figure 1 is an explanatory diagram of how a cylindrical sample is cut with a circular saw, Figure 2 is an explanatory diagram of how a piece-shaped sample is prepared from a disc-shaped sample material, and Figure 3 is an explanatory diagram of how a piece-shaped sample is prepared from a cylindrical sample. FIG. 4 is an explanatory diagram of the preparation mode from a pin-shaped sample to a piece-shaped sample. In the figure, 1 is a tube-shaped sample, 2 is a block-shaped sample, 3 is a piece-shaped sample, 4 is a disk-shaped sample material, 5 is a bottle-shaped sample material, and 6 is a piece-shaped sample. Figure 3
Claims (1)
を、超硬質チップを切断刃とした丸鋸を用いて２回輪切
りして一切断面を有するブロック状サンプルとディスク
状サンプル素材を調製し、該ディスク状サンプル素材を
更に複数個打ち抜いてピース状サンプルを調製し、上記
ブロック状サンプルとピース状サンプルをそれぞれ分析
試料とすることを特徴とする鋼材中元素分析用サンプル
の調製方法。A cylindrical solidified sample taken from molten steel was sliced twice at a predetermined body position using a circular saw with an ultra-hard tip as a cutting blade to prepare a block-shaped sample and a disk-shaped sample material with a complete cross section. A method for preparing a sample for elemental analysis in steel, characterized in that a plurality of pieces are prepared by further punching out a plurality of the disc-shaped sample materials, and the block-shaped sample and the piece-shaped sample are respectively used as analysis samples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137900A JPH0431738A (en) | 1990-05-28 | 1990-05-28 | Method for preparing sample for analyzing elements in steel material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137900A JPH0431738A (en) | 1990-05-28 | 1990-05-28 | Method for preparing sample for analyzing elements in steel material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431738A true JPH0431738A (en) | 1992-02-03 |
Family
ID=15209303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2137900A Pending JPH0431738A (en) | 1990-05-28 | 1990-05-28 | Method for preparing sample for analyzing elements in steel material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431738A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4997389A (en) * | 1973-01-20 | 1974-09-13 | ||
| JPS6330740A (en) * | 1986-07-24 | 1988-02-09 | Sumitomo Metal Ind Ltd | Apparatus for picking specimen piece for analysis |
-
1990
- 1990-05-28 JP JP2137900A patent/JPH0431738A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4997389A (en) * | 1973-01-20 | 1974-09-13 | ||
| JPS6330740A (en) * | 1986-07-24 | 1988-02-09 | Sumitomo Metal Ind Ltd | Apparatus for picking specimen piece for analysis |
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