JP2790426B2 - Transfer method of steel segregation - Google Patents
Transfer method of steel segregationInfo
- Publication number
- JP2790426B2 JP2790426B2 JP33522093A JP33522093A JP2790426B2 JP 2790426 B2 JP2790426 B2 JP 2790426B2 JP 33522093 A JP33522093 A JP 33522093A JP 33522093 A JP33522093 A JP 33522093A JP 2790426 B2 JP2790426 B2 JP 2790426B2
- Authority
- JP
- Japan
- Prior art keywords
- segregation
- transferring
- steel
- corroded
- grease
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 27
- 238000005204 segregation Methods 0.000 title claims description 24
- 229910000831 Steel Inorganic materials 0.000 title claims description 18
- 239000010959 steel Substances 0.000 title claims description 18
- 239000004519 grease Substances 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 15
- 238000005498 polishing Methods 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 9
- 229920000298 Cellophane Polymers 0.000 claims description 8
- 239000010409 thin film Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000010419 fine particle Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000004264 Petrolatum Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 229940066842 petrolatum Drugs 0.000 claims description 2
- 235000019271 petrolatum Nutrition 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000010954 inorganic particle Substances 0.000 claims 1
- 239000011344 liquid material Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 description 18
- 239000002245 particle Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical class OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼の連続鋳造片や、イ
ンゴットの偏析評価に利用することが出来る鋼の偏析を
転写する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transferring segregation of steel, which can be used for evaluation of segregation of steel continuous cast pieces and ingots.
【０００２】[0002]
【従来の技術】鋼の偏析を転写する方法として、特公昭
64-2212 号公報、特開昭61-170581 号公報および特開平
1-227943号公報が知られている。特公昭64-2212 号公報
および特開昭61-170581 号公報の方法では、図２のフロ
ーチャートに示すように、腐食、水洗、乾燥後の金属試
料表面に有機性の高粘性液状物質として通常グリースを
塗布し、その後、細粒研磨紙を用いて仕上げ研磨したの
ち、片面に接着剤が塗布されている透明薄膜たとえばセ
ロハンテープを試料表面に押しつけ、密着させてから剥
ぎ取り、剥ぎ取った透明薄膜を台紙もしくは台板に張り
つける。2. Description of the Related Art As a method of transferring segregation of steel, there is a method of transferring a steel sheet,
64-2212, JP-A-61-170581 and JP-A-Hei.
Japanese Patent Publication No. 1-227943 is known. In the method disclosed in JP-B-64-2212 and JP-A-61-170581, as shown in the flow chart of FIG. 2, the surface of a metal sample after corrosion, washing, and drying is usually greased as an organic high-viscosity liquid substance. After that, after finishing polishing using fine-grained abrasive paper, a transparent thin film coated with an adhesive on one side is pressed against the sample surface, for example, cellophane tape is pressed, adhered, peeled off, and then peeled off. On the backing paper or base plate.
【０００３】この工程のなかで細粒研磨紙を用いて仕上
げ研磨をする目的は、金属試料表面の腐食により生じた
偏析部の凹みに、グリースと研磨紙の砥粒および金属の
研磨かすを押し込むと同時に、偏析部以外の凸部に付着
している余分のグリースを除去し、セロハンテープに転
写された偏析模様が、偏析部とそうでない部分とで明確
に区別できるようにするためである。The purpose of the final polishing using fine-grain abrasive paper in this process is to push grease, abrasive grains of abrasive paper and metal polishing residue into the recesses of the segregated portion caused by corrosion of the surface of the metal sample. At the same time, excess grease adhering to the projections other than the segregated portions is removed so that the segregated pattern transferred to the cellophane tape can be clearly distinguished between the segregated portions and the other portions.
【０００４】[0004]
【発明が解決しようとする課題】しかし、金属試料表面
の腐食により生じた偏析部の鮮明な転写模様を得るため
には、細粒研磨紙を用いて研磨作業を入念に行なう必要
があり、大きな金属試料の場合、多大の労苦を必要とす
る。また最初に金属試料表面を研磨した後で、腐食した
金属試料面を再度研磨することになるため、腐食後の偏
析の状況がそのまま維持されない事になり、研磨の強弱
により偏析の模様が変わるため、金属試料の偏析を正確
に転写しにくいという欠点がある。However, in order to obtain a clear transfer pattern of the segregated portion caused by the corrosion of the surface of the metal sample, it is necessary to carefully perform the polishing operation using fine-grained abrasive paper. In the case of a metal sample, a great deal of labor is required. Also, after polishing the metal sample surface first, the corroded metal sample surface will be polished again, so the segregation situation after corrosion will not be maintained as it is, and the segregation pattern will change depending on the strength of polishing. However, there is a disadvantage that it is difficult to transfer the segregation of the metal sample accurately.
【０００５】特開平1-227943号公報の方法では、腐食後
の金属試料表面に単に透明粘着テープを張り付け、剥が
した後、粘着テープを台紙に張り付ける方法であるが、
この方法では、前述した各方法のように研磨の砥粒、グ
リース金属の研磨かす等を、腐食後の金属の凹部に押し
込む工程が無いため、金属の偏析を鮮明に転写すること
が出来ない。In the method disclosed in Japanese Patent Application Laid-Open No. 1-227943, a transparent adhesive tape is simply adhered to the surface of a corroded metal sample, and after peeling, the adhesive tape is adhered to a mount.
In this method, since there is no step of pushing abrasive grains for polishing, grit metal swarf, and the like into the concave portions of the corroded metal as in the above-described methods, the segregation of the metal cannot be clearly transferred.
【０００６】本発明は、前記従来技術の問題点を解消
し、簡便な工程によって金属の偏析を鮮明に転写するこ
とが出来る方法を提供することを目的としている。An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a method capable of clearly transferring metal segregation by a simple process.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本発明者等は、鋭意研究を重ねた結果、金属試料表
面腐食状態のマクロ組織を転写するのに使用する有機性
の高粘性液状物質（グリース）に適量のカーボンの微細
粒を混合することと、拭き取りに使用する紙の硬さとの
間に密接な関連のあることを知見し、本発明を完成する
に至った。Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies and as a result, have found that an organic high-viscosity liquid used to transfer a macrostructure in a state of corroded metal sample surface. The inventors have found that there is a close relationship between mixing a proper amount of carbon fine particles with a substance (grease) and the hardness of paper used for wiping, and have completed the present invention.
【０００８】すなわち、上記知見に基づいた本発明は、
金属試料表面を研磨仕上した後、腐食、水洗、乾燥を行
なって腐食状態のマクロ組織を転写するにあたり、前記
の処理を施した金属試料表面に有機性の高粘性液状物質
と無機質の微細粒との混合物を塗布し、その後、所定の
硬さを有する紙を用いて腐食後の凸部に付着した前記混
合物を拭き取ると共に、腐食後の凹部に前記混合物を押
し込み、その後、片面に接着剤が塗布されている透明薄
膜を、前記の試料面に押しつけ、密着させてから剥ぎ取
り、剥ぎ取った透明薄膜を台紙もしくは台板に張り付け
ることを特徴とする鋼の偏析の転写方法を要旨としてい
る。[0008] That is, the present invention based on the above findings,
After the metal sample surface is polished and finished, the corrosion, washing, and drying are performed to transfer the corroded macrostructure.On the metal sample surface subjected to the above treatment, an organic high-viscosity liquid substance and inorganic fine particles are applied. Is applied, and then the mixture adhered to the corroded protrusions is wiped off using a paper having a predetermined hardness, and the mixture is pressed into the corroded recesses, and then the adhesive is applied to one surface. The gist of the present invention is a method for transferring segregation of steel, wherein the transparent thin film is pressed against the sample surface, brought into close contact with the sample surface, and then peeled off, and the peeled transparent thin film is adhered to a mount or a base plate.
【０００９】[0009]
【作用】本発明の構成と作用を説明する。本発明は鋼の
偏析の転写方法に係わり、これは前述の如き構成の転写
方法により行われる。例えば、研磨仕上、腐食、水洗、
乾燥後の鋼試料表面に、グリースにカーボンの微細粒を
混入したものを塗布し、その後、ある硬さの紙を用いて
腐食後の凸部に付着した前記混合物（グリースとカーボ
ンの微細粒の混合物）を拭き取ると共に、腐食後の凹部
に前記混合物（グリースとカーボンの微細粒の混合物）
を押し込む。このあと片面に接着剤が塗布されているセ
ロハンテープを、前記の試料面に押しつけ、密着させて
から剥ぎ取り、剥ぎ取ったセロハンテープを台紙もしく
は台板に張り付ける。かかる鋼の偏析の転写方法の一例
を図１のフローチャートに示す。 The structure and operation of the present invention will be described. The present invention relates to a method of transferring a segregation of steel, this transfer of the aforementioned such as configuration
Done by the method. For example, polishing finish, corrosion, washing,
On the surface of the dried steel sample, apply a mixture of grease and fine carbon particles, and then apply the mixture ( grease and fine carbon particles ) adhered to the corroded projections using paper of a certain hardness. Mixture ) and the mixture (a mixture of grease and fine carbon particles )
Press. Thereafter, a cellophane tape having an adhesive applied to one side is pressed against the sample surface, brought into close contact with the sample surface, peeled off, and the peeled cellophane tape is adhered to a base paper or a base plate. An example of such a method of transferring segregation of steel
Is shown in the flowchart of FIG.
【００１０】上記の方法（マクロプリント法と呼ぶ）に
より、従来技術で必要とした細粒研磨紙を用いての研磨
作業がなくなり、操作が簡便になると共に、腐食した金
属試料の腐食面を再度研磨することが無いため、腐食後
の偏析の状況を正確に転写することができ、研磨の程度
により偏析模様がバラつくのも防げる。[0010] The above-mentioned method (referred to as a macroprinting method) eliminates the polishing operation using fine-grained abrasive paper required in the prior art, simplifies the operation, and re-evaluates the corroded surface of the corroded metal sample. Since there is no polishing, the state of segregation after corrosion can be accurately transferred, and the segregation pattern can be prevented from varying depending on the degree of polishing.
【００１１】[0011]
【実施例】本発明の実施例を図面を参照しながら説明す
るが、これによって本発明は何ら限定されるものではな
い。 実施例鋼表面を研磨仕上した後、 鋼の偏析を現出せしめる腐食
液として、飽和ピクリン酸＋表面活性剤（市販の商品
名：ママレモン）を使用して被検査面を腐食し、水洗後
乾燥する。このあと、有機性の高粘液状物質としては、
10-1〜102 Ｐａ・ｓの粘度のグリース、パラフィン、ワ
セリンのいずれかを使用する。この実施例では粘度10Ｐ
ａ・ｓ程度のLNGI No.2号のグリースを使用した（LNGI
No.：Nat-ional Lubrication Grease Institute Numbe
r ）。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. Example After the steel surface was polished and finished, the surface to be inspected was corroded using saturated picric acid + surfactant (commercial product name: Mama Lemon) as a corrosive liquid to cause segregation of the steel, washed with water, and dried. I do. After this, as organic high-viscosity liquid substances,
One of grease, paraffin, and petrolatum having a viscosity of 10 -1 to 10 2 Pa · s is used. In this embodiment, the viscosity is 10P
LNGI No.2 grease of about a.s was used (LNGI
No.:Na t- ional Lubrication Grease Institute Numbe
r).
【００１２】この際、使用するグリースの粘度に関して
は、硬すぎても軟らかすぎても作業がしづらくなる。す
なわち、軟らかすぎると片面に接着剤が塗布されている
セロハンテープへの転写時に流動してシャープな像の転
写ができない。また、硬すぎると被検査面の凹部へ押し
込むことが困難となり、凹部へ十分に行き渡らなくな
る。従って、グリースの粘度に関してはLNGI No.０号か
ら３号が適当である。[0012] At this time, with respect to the viscosity of the grease to be used, the work becomes difficult even if it is too hard or too soft. That is, if it is too soft, it will flow during transfer to a cellophane tape coated with an adhesive on one side, and a sharp image cannot be transferred. On the other hand, if it is too hard, it will be difficult to push it into the concave portion of the surface to be inspected, and it will not be sufficiently spread to the concave portion. Accordingly, LNGI Nos. 0 to 3 are suitable for the viscosity of grease.
【００１３】次に、前記のグリースに、黒色もしくは灰
色の微細粒子（カーボン粉末、SiC粉末等）を混入した
ものを被検査面に塗布する。この実施例ではカーボン粉
末を使用した。この時使用するカーボン粉末の粒度につ
いては表１に示すように50〜300 メッシュの範囲のもの
であると、転写された偏析模様のコントラストが優れて
いることが解り、中でも、100 〜250 メッシュのカーボ
ン粉末を使用したものが最も良いコントラストを示し
た。Next, the above grease mixed with black or gray fine particles (carbon powder, SiC powder, etc.) is applied to the surface to be inspected. In this example, carbon powder was used. As shown in Table 1, when the particle size of the carbon powder used at this time is in the range of 50 to 300 mesh, it is understood that the contrast of the transferred segregation pattern is excellent. The one using carbon powder showed the best contrast.
【００１４】これは、カーボン粉末が粗すぎると、被検
査面の細かな凹部にカーボンが残りにくく、逆に細かす
ぎると、転写時にセロハンテープに付着したカーボンの
濃さが薄くなり、十分なコントラストが得られなくなる
からである。[0014] This is because if the carbon powder is too coarse, it is difficult for carbon to remain in fine concave portions on the surface to be inspected. Conversely, if the carbon powder is too fine, the concentration of carbon adhered to the cellophane tape at the time of transfer decreases, resulting in a sufficient contrast. Is no longer obtained.
【００１５】又、グリースに混入するカーボンの量にも
最適な範囲がある。即ち、グリースに比べカーボン量が
多すぎると、グリースの粘着力が少なくなり、被検査面
腐食後の凹部にグリースが付着しにくくなる。逆にカー
ボンの量が少なすぎるとグリースの黒色度が低下し、転
写時の像のコントラストが不鮮明となる。表２にグリー
ス１ｇ当りのカーボン混入量と、転写像のコントラス
ト、被検査面凹部細部へのグリースとカーボンの残留状
況を示す。これから、グリース１ｇ当りのカーボン混入
量は0.03〜0.30ｇが適当であり、好ましくは0.05〜0.20
ｇの範囲が良い。There is also an optimum range for the amount of carbon mixed in the grease. That is, if the amount of carbon is too large as compared with the grease, the adhesive strength of the grease decreases, and the grease hardly adheres to the concave portion after the corrosion of the surface to be inspected. Conversely, if the amount of carbon is too small, the blackness of the grease decreases, and the contrast of the image at the time of transfer becomes unclear. Table 2 shows the amount of carbon mixed per g of grease, the contrast of the transferred image, and the state of grease and carbon remaining in the details of the concave portion of the surface to be inspected. From this, it is appropriate that the carbon mixing amount per g of grease is 0.03 to 0.30 g, preferably 0.05 to 0.20 g.
The range of g is good.
【００１６】次に適度な硬さの紙を用いて、腐食後の凸
部に付着したグリースとカーボンの微細粒の混合物を拭
き取ると共に、腐食後の凹部にグリースとカーボンの微
細粒の混合物を押し込むが、この際、使用する紙の硬さ
が軟らかすぎると腐食後の凸部に付着したグリースとカ
ーボンの微細粒の混合物を完全に拭き取ることができ
ず、表面に残留してコントラストが悪くなる。また、硬
すぎると拭き取りが困難になり、表面にグリースとカー
ボンの微細粒の混合物が残留しやすくなる。このため拭
き取る紙の硬さにも最適な範囲がある。表３に、拭き取
りに使用した紙の硬さと、その紙で表面を１０回拭き取
った後のグリースとカーボンの残留状況を示す。Next, using a paper of moderate hardness, the mixture of the grease and the fine carbon particles adhered to the corroded convex portions is wiped, and the mixture of the grease and the fine carbon particles is pressed into the corroded concave portions. However, at this time, if the hardness of the paper used is too soft, the mixture of the grease and the fine particles of carbon attached to the corroded protrusions cannot be completely wiped off, and the mixture remains on the surface and the contrast deteriorates. On the other hand, if it is too hard, wiping becomes difficult, and a mixture of grease and fine carbon particles tends to remain on the surface. Therefore, there is an optimum range for the hardness of the paper to be wiped. Table 3 shows the hardness of the paper used for wiping and the residual state of grease and carbon after wiping the surface ten times with the paper.
【００１７】表３より、拭き取りに使用する紙の硬さは
40.7〜186.1 ｇ／ｍ2 の範囲が良く、好ましくは52.3〜
157.0 ｇ／ｍ2 の範囲が良い。なお、紙の硬さはｍ2 当
りの紙の重さで表す。From Table 3, the hardness of the paper used for wiping is
The range of 40.7 to 186.1 g / m 2 is good, and preferably 52.3 to 186.1 g / m 2.
A range of 157.0 g / m 2 is good. The hardness of the paper is represented by the weight of the paper per m 2 .
【００１８】紙でカーボンを混入したグリースを拭き取
った後は、片面に接着剤が塗布されている市販の幅１０
０ｍｍのセロハンテープを、試料表面に押しつけ密着さ
せてから剥ぎ取り、剥ぎ取った透明薄膜を白色または白
色に近い台紙もしくは台板に張り付ける。連続鋳造鋳片
の中心線にそって切断採取した縦断面の中心部付近の偏
析模様を、前述の方法で転写したものを図３に示すAfter the grease mixed with carbon is wiped with paper, a commercially available width of 10 having an adhesive applied to one side is obtained.
A 0-mm cellophane tape is pressed against and adhered to the surface of the sample, and then peeled off. The peeled transparent thin film is adhered to a white or near-white mount or board. FIG. 3 shows the segregation pattern in the vicinity of the center of the longitudinal section cut and sampled along the center line of the continuous cast slab and transferred by the above-described method.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【表２】 [Table 2]
【００２１】[0021]
【表３】 [Table 3]
【００２２】[0022]
【発明の効果】本発明は以上説明したように構成されて
いるから、簡便な操作で、鋳片の中心線にそって切断採
取した試料の、中心部付近縦断面の腐食した偏析模様の
状況を正確に転写することが出来るので、産業上極めて
有用である。Since the present invention is constructed as described above, the state of the corroded segregation pattern in the longitudinal section near the center of the sample cut and sampled along the center line of the slab by simple operation. Can be transferred accurately, which is extremely useful in industry.
【図１】本発明の工程図である。FIG. 1 is a process chart of the present invention.
【図２】従来技術の工程図である。FIG. 2 is a process diagram of a conventional technique.
【図３】本発明法により得られた鋼断面の金属組織を示
す図である。FIG. 3 is a view showing a metal structure of a steel cross section obtained by the method of the present invention.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−2657（ＪＰ，Ａ) 特開 昭61−170581（ＪＰ，Ａ) 特開 平１−227943（ＪＰ，Ａ) 特開 平１−280236（ＪＰ，Ａ) 特開 平４−127032（ＪＰ，Ａ) 特開 平６−213786（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) G01N 1/28──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-2657 (JP, A) JP-A-61-170581 (JP, A) JP-A-1-227943 (JP, A) JP-A-1- 280236 (JP, A) JP-A-4-127032 (JP, A) JP-A-6-213786 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) G01N 1/28
Claims (6)
水洗、乾燥を行なって腐食状態のマクロ組織を転写する
にあたり、前記の処理を施した金属試料表面に有機性の
高粘性液状物質と無機質の微細粒との混合物を塗布し、
その後、所定の硬さを有する紙を用いて腐食後の凸部に
付着した前記混合物を拭き取ると共に、腐食後の凹部に
前記混合物を押し込み、その後、片面に接着剤が塗布さ
れている透明薄膜を、前記の試料面に押しつけ、密着さ
せてから剥ぎ取り、剥ぎ取った透明薄膜を台紙もしくは
台板に張り付けることを特徴とする鋼の偏析の転写方
法。1. After polishing the surface of a metal sample, corrosion,
In transferring the macrostructure in the corroded state by washing with water and drying, a mixture of an organic high-viscosity liquid substance and inorganic fine particles is applied to the surface of the metal sample subjected to the above treatment,
Then, while wiping the mixture adhered to the corroded protrusions using a paper having a predetermined hardness, and pushing the mixture into the corroded recesses, a transparent thin film having an adhesive applied to one surface is then removed. A method for transferring segregation of steel, characterized in that the transparent thin film is pressed against the sample surface, brought into close contact with the sample surface, peeled off, and the peeled transparent thin film is adhered to a mount or a base plate.
・ｓのグリース、パラフィンまたはワセリンのいずれか
である請求項１記載の鋼の偏析の転写方法。2. The highly viscous liquid substance has a viscosity of 10 -1 to 10 2 Pa.
2. The method for transferring segregation of steel according to claim 1, wherein the s is grease, paraffin, or petrolatum.
ーボン粉末、SiC 粉末のいずれかである請求項１または
２記載の鋼の偏析の転写方法。3. The method for transferring segregation of steel according to claim 1, wherein the inorganic fine particles are one of 50-300 mesh carbon powder and SiC powder.
粒混入量は 0.03 〜0.30ｇである請求項１、２または３
記載の鋼の偏析の転写方法。4. The amount of fine inorganic particles per 1 g of the highly viscous liquid material is 0.03 to 0.30 g.
The method for transferring segregation of steel as described.
6.1 ｇ／ｍ2 である請求項１〜４のいずれかに記載の鋼
の偏析の転写方法。5. The hardness of the paper used for wiping is 40.7-18.
6.1 g / m 2 a transfer method of segregation of the steel according to any one of claims 1 to 4.
項１〜５のいずれかに記載の鋼の偏析の転写方法。6. The method for transferring segregation of steel according to claim 1, wherein the transparent thin film is a cellophane tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33522093A JP2790426B2 (en) | 1993-12-28 | 1993-12-28 | Transfer method of steel segregation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33522093A JP2790426B2 (en) | 1993-12-28 | 1993-12-28 | Transfer method of steel segregation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07198565A JPH07198565A (en) | 1995-08-01 |
| JP2790426B2 true JP2790426B2 (en) | 1998-08-27 |
Family
ID=18286109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33522093A Expired - Fee Related JP2790426B2 (en) | 1993-12-28 | 1993-12-28 | Transfer method of steel segregation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2790426B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100439826B1 (en) * | 2002-05-27 | 2004-07-12 | 현대자동차주식회사 | Sample pre-treatment method adapted to oxygen and nitrogen content analysis |
| JP5448432B2 (en) * | 2008-12-10 | 2014-03-19 | 新日鐵住金株式会社 | Method for detecting solidification structure of steel |
| JP5409499B2 (en) * | 2010-04-22 | 2014-02-05 | 新日鐵住金株式会社 | Method for detecting solidification structure of steel |
| JP5450233B2 (en) * | 2010-04-22 | 2014-03-26 | 新日鐵住金株式会社 | Method for detecting solidification structure of steel |
| JP5743717B2 (en) * | 2011-05-31 | 2015-07-01 | 新日鐵住金株式会社 | Method for detecting solidification structure of steel |
-
1993
- 1993-12-28 JP JP33522093A patent/JP2790426B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07198565A (en) | 1995-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2790426B2 (en) | Transfer method of steel segregation | |
| Tanaka et al. | New development of a grinding wheel with resin cured by ultraviolet light | |
| Shetty et al. | A study of abrasive wear mechanisms using diamond and alumina scratch tests | |
| DE69524876T2 (en) | SURFACE-ACTIVE TOOLS | |
| DE60218218D1 (en) | PROCESS FOR THE PLANARIZATION OF SURFACES CONTAINING METALS OF GROUP VIII, USING A FIXED GRINDING OBJECT | |
| Bramfitt et al. | Metallography and Microstructures of Carbon and Low-Alloy Steels | |
| WO2010098920A1 (en) | Sanding clay | |
| RU2112000C1 (en) | Paste for metal and alloy polishing | |
| JP2923440B2 (en) | Flexible diamond coated abrasive | |
| Agbaraji et al. | Basic observations in the flat lapping of aluminum and steels using standard abrasives | |
| JPH0841443A (en) | Polishing composition and polishing method | |
| CN115584507A (en) | Antirust metal cleaning agent and preparation method and use method thereof | |
| JP2003039309A (en) | Solid polishing agent for polishing stainless steel | |
| JPS58127775A (en) | Abrasive composition for centrifugal magnetic abrasive device | |
| US4770672A (en) | Lapping compound and method for using same | |
| JPH06158030A (en) | Metal abrasive | |
| SU1162862A1 (en) | Coolant for polishing ceramics | |
| RU2058359C1 (en) | Polishing paste | |
| JPH09196833A (en) | Macro tissue transfer method | |
| JPS642212B2 (en) | ||
| JPS62112061A (en) | Material and method for detecting phosphorus segregated part in metallic material | |
| JPH08173871A (en) | Painting method and equipment | |
| Vander Voort | Metallographic Technique for Nonferrous Metals and Special-Purpose Alloys | |
| JPS6390343A (en) | Polishing method for cooling roll for liquid rapid cooling | |
| JP2868681B2 (en) | High resolution steel segregation state, solidification structure transfer method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980519 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080612 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090612 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100612 Year of fee payment: 12 |
|
| LAPS | Cancellation because of no payment of annual fees |