JPH06186226A - Mold for sampling sample for analyzing element from melted metal - Google Patents
Mold for sampling sample for analyzing element from melted metalInfo
- Publication number
- JPH06186226A JPH06186226A JP4354782A JP35478292A JPH06186226A JP H06186226 A JPH06186226 A JP H06186226A JP 4354782 A JP4354782 A JP 4354782A JP 35478292 A JP35478292 A JP 35478292A JP H06186226 A JPH06186226 A JP H06186226A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- sample
- metal
- molten metal
- collecting
- 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.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶融金属、例えば溶鋼
の元素分析用サンプルを採取する鋳型に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for collecting a sample for elemental analysis of molten metal such as molten steel.
【０００２】[0002]
【従来の技術】例えば、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各種元素の成分分析
を行うために、サンプル採取鋳型を溶鋼中に浸漬し、溶
鋼サンプルを採取している。採取された金属サンプルの
形状は、図５に示すように、例えば、約３０ｍｍ径、高
さ５０ｍｍの円柱状サンプルである。2. Description of the Related Art For example, in the steelmaking process of the ironmaking industry,
In order to analyze the components of various elements in the molten steel that becomes the steel material during the steel refining process, the sample-collecting mold is immersed in the molten steel to collect the molten steel sample. As shown in FIG. 5, the shape of the collected metal sample is, for example, a cylindrical sample having a diameter of about 30 mm and a height of 50 mm.
【０００３】この円柱状サンプルの採取に際して、該円
柱状サンプルとなる溶鋼の一部がサンプル採取鋳型の側
面に流れた状態で凝固付着し、サンプル採取鋳型から凝
固した円柱状サンプルの抜き出し分離をできなくするこ
とから、特開昭５０−１２９２９４号公報に示すよう
に、鋳型の上端面あるいは側面に地金付着防止剤を塗布
し、上記溶鋼地金の凝固、付着を抑制する方法が知られ
ている。When collecting this cylindrical sample, a part of the molten steel to be the cylindrical sample is solidified and adhered in a state of flowing to the side surface of the sample collecting mold, and the solidified cylindrical sample can be extracted and separated from the sample collecting mold. Therefore, as disclosed in Japanese Patent Laid-Open No. 50-129294, there is known a method of applying a metal adhesion preventing agent to the upper end surface or side surface of a mold to suppress the solidification and adhesion of the molten steel metal. There is.
【０００４】[0004]
【発明が解決しようとする課題】上記特開昭５０−１２
９２９４号公報の方法によると、サンプリングの仕方に
よってはサンプリングが完了するまでに地金付着防止剤
が溶鋼熱によって先行反応して消失してしまい、鋳型の
上端面などに部分的に地金が付着、凝固することがあ
る。上記鋳型の上端面等に部分的とはいえ地金が付着、
凝固すると、サンプルと鋳型及び地金をそれぞれに分離
することが困難となり、鋳型のままの状態で切断機で
（図示せず）切断し、サンプルを取り出すという煩雑な
作業となるので、鋼の精錬過程で成分調製のための成分
判明時間に遅れを生じ、精錬コストなどの損失の原因と
なる。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
According to the method disclosed in Japanese Patent No. 9294, depending on the sampling method, the metal adhesion preventive agent is reacted by the heat of molten steel and disappears before the sampling is completed, and the metal is partially adhered to the upper end surface of the mold. , May solidify. Metal is attached to the upper end surface of the mold, etc. even though it is partial,
When solidified, it becomes difficult to separate the sample from the mold and the metal, and it is a complicated task to cut the sample as it is with a cutting machine (not shown) and take out the sample. In the process, there is a delay in the time required for the components to be identified for preparing the components, which causes a loss such as refining costs.
【０００５】また、極低炭素溶鋼等のように分析対象元
素が微量となる溶融金属のサンプリングに際して、上記
地金付着防止剤がペースト状とかフイルム状であって、
結合剤あるいは接着剤として有機系物質が介在している
とこの地金付着防止剤は溶鋼熱によって分解してガス状
物を発生するので湯切り効果は見られるが、有機物質が
サンプル内に混入し、サンプル中の炭素濃度が溶鋼中の
炭素濃度より高くなってしまう。また、上記同様にペー
スト状の酸化物系物質を用いるとガス発生とか熱膨張等
で湯切り効果は見られるが、酸化物がサンプル内に混入
しサンプル中の酸素濃度が溶融金属中の酸素濃度より高
くなってしまう。Further, when sampling a molten metal such as an ultra-low carbon molten steel having a trace amount of an element to be analyzed, the above-mentioned bare metal adhesion preventive agent is in a paste form or a film form,
When an organic substance is present as a binder or adhesive, this metal adhesion inhibitor decomposes by the heat of molten steel to generate a gaseous substance, so a hot water draining effect can be seen, but the organic substance is mixed in the sample. However, the carbon concentration in the sample becomes higher than the carbon concentration in the molten steel. In addition, when a paste-like oxide-based substance is used in the same manner as above, a hot water removal effect can be seen due to gas generation, thermal expansion, etc., but the oxide concentration in the sample causes the oxygen concentration in the sample to be the oxygen concentration in the molten metal. It will be higher.
【０００６】本発明は、上記したような問題を解決する
ものであり、鋳型上端部に地金が付着するのを防止する
ことでサンプルと鋳型とが地金で連結することがなく、
また、炭素、酸素等の分析対象元素の汚染のないサンプ
ル採取鋳型を提供する。The present invention solves the above-mentioned problems, and prevents the metal from adhering to the upper end of the mold so that the sample and the mold are not connected by the metal.
It also provides a sampling template free from contamination of the elements to be analyzed such as carbon and oxygen.
【０００７】[0007]
【課題を解決するための手段】本発明は、溶融金属から
元素分析用サンプルを採取する鋳型において、サンプル
採取鋳型の上部内周壁部に、溶融金属との濡れ性の悪い
物質で構成した湯切り堰を嵌装配置し、上記サンプル採
取鋳型の上端部に金属製の蓋を嵌装することを特徴とす
る溶融金属から元素分析用サンプルを採取する鋳型であ
る。DISCLOSURE OF THE INVENTION The present invention relates to a mold for collecting a sample for elemental analysis from a molten metal, and a hot water drainer made of a substance having poor wettability with the molten metal on the upper inner peripheral wall of the sample collecting mold. A mold for collecting a sample for elemental analysis from molten metal, characterized in that a weir is fitted and arranged, and a lid made of metal is fitted on the upper end of the sample collecting mold.
【０００８】また本発明は、溶融金属から元素分析用サ
ンプルを採取する鋳型において、サンプル採取鋳型の上
部内周壁部に、溶融金属との濡れ性の悪い物質で構成し
た湯切り堰を嵌装配置し、上記湯切り堰の上端部に金属
製の蓋を嵌装することを特徴とする溶融金属から元素分
析用サンプルを採取する鋳型である。Further, according to the present invention, in a mold for collecting a sample for elemental analysis from molten metal, a hot water weir made of a substance having poor wettability with molten metal is fitted and arranged on an upper inner peripheral wall of the sample collecting mold. A mold for collecting a sample for elemental analysis from molten metal, characterized in that a metallic lid is fitted on the upper end of the bath draining weir.
【０００９】[0009]
【作用】本発明は、サンプル採取鋳型の上部内周壁部
に、溶融金属との濡れ性の悪い物質で構成した湯切り堰
を嵌装配置し、上記サンプル採取鋳型の上端部に金属製
の蓋を嵌装したので、該サンプル採取鋳型の取扱操作時
に何らかの機械的衝撃があっても、湯切り堰の脱落を防
止し、また該サンプル採取鋳型を溶融金属中に浸漬する
際に、溶融金属浴表面に介在しているスラグの流入を防
止して溶融金属中に浸漬できる。また溶融金属中におい
て該溶融金属の熱によって上記金属製の蓋は溶解される
ので、鋳型内に溶融金属が流入し、所望の金属サンプル
が採取できる。According to the present invention, a bath drain weir made of a substance having poor wettability with molten metal is fitted and disposed on the upper inner peripheral wall of the sample collecting mold, and a metal lid is provided on the upper end of the sample collecting mold. Since it is fitted, even if there is some mechanical shock during the handling operation of the sample-collecting mold, the melter-dam is prevented from falling off, and when the sample-collecting mold is immersed in the molten metal, a molten metal bath is used. It can be immersed in the molten metal while preventing the inflow of slag intervening on the surface. Further, since the metal lid is melted in the molten metal by the heat of the molten metal, the molten metal flows into the mold and a desired metal sample can be collected.
【００１０】また、上記サンプル採取鋳型および該鋳型
の上部内周壁部に嵌装配置した湯切り堰は溶融金属の熱
で昇温され、その熱膨張によって両者は強固に密着し、
鋳型内に流入する溶融金属による浮力に対抗して湯切り
堰の位置を保持するので、後述する湯切り堰の機能を完
全に発揮することができる。Further, the temperature of the sample collecting mold and the hot water cutting dam fitted and arranged on the upper inner peripheral wall of the mold are raised by the heat of the molten metal, and the thermal expansion causes the two to firmly adhere to each other.
Since the position of the hot water cutting weir is held against the buoyancy of the molten metal flowing into the mold, the function of the hot water cutting weir described later can be fully exerted.
【００１１】また、上記サンプル採取鋳型を溶融金属中
から引き上げる時、鋳型上面部に溶融金属が盛り上がっ
た状態で溶融金属浴表面のスラグ層を通過するので、鋳
型内へのスラグの流入は防止できる。また、溶融金属浴
表面から引き上げた直後の鋳型上部において、鋳型上端
部に滞留する溶融金属は湯切り堰によって鋳型内面側と
鋳型外周側に分断されるので、鋳型の外周側面に溶融金
属が付着、凝固したとしても、この凝固金属と鋳型内の
凝固金属は縁切りされている。従って、採取後凝固した
金属サンプルは若干収縮するので簡単に鋳型から取り出
せる。Further, when the above-mentioned sample collecting mold is pulled out from the molten metal, the molten metal passes through the slag layer on the surface of the molten metal bath with the molten metal rising on the upper surface of the mold, so that the inflow of slag into the mold can be prevented. . Further, in the upper part of the mold immediately after being pulled up from the surface of the molten metal bath, the molten metal staying at the upper end of the mold is divided into the mold inner surface side and the mold outer peripheral side by the drainage weir, so the molten metal adheres to the outer peripheral surface of the mold. Even if solidified, the solidified metal and the solidified metal in the mold are cut off. Therefore, the metal sample solidified after the collection contracts slightly and can be easily taken out from the mold.
【００１２】また、サンプル採取鋳型の上部内周壁部に
湯切り堰を嵌装配置したので、図４に示したように、採
取された金属サンプルの上側部には該金属サンプルの最
大外形より小さい小径部７が形成され、上記金属サンプ
ル上端部に若干量でも鋳張りが発生しても、その鋳張り
は上記小径部７の範囲内に収まるので、該金属サンプル
を分析場に例えば気送管で輸送する場合、そのまま気送
することができる。Further, since the hot water cutting weir is fitted and arranged in the upper inner peripheral wall portion of the sample collecting mold, as shown in FIG. 4, the upper portion of the collected metal sample is smaller than the maximum outer shape of the metal sample. Even if a small amount of casting occurs at the upper end of the metal sample because the small diameter portion 7 is formed, the casting falls within the range of the small diameter portion 7, so that the metal sample can be transferred to the analysis site, for example, by a pneumatic tube. When shipping by, it can be shipped by air.
【００１３】また本発明において、上記湯切り堰の上端
部に金属製の蓋を嵌装した態様のサンプル採取鋳型であ
ると、上述した金属製の蓋による湯切り堰の取扱時の保
持効果以外の作用効果が達成されると共に該金属製の蓋
を小型化できるものである。Further, in the present invention, in the sample collecting mold in which a metal lid is fitted on the upper end of the above-mentioned bath cover, other than the above-mentioned holding effect when the bath cover is handled by the metal cover. In addition to achieving the above-mentioned function and effect, the metal lid can be downsized.
【００１４】上記本発明において使用する湯切り堰は、
サンプル採取に要する作業時間内において溶融金属の温
度によって溶解しない物質であることは言うまでもない
ことであるが、特性として溶融金属との濡れ性が悪い物
質を選択使用するものである。具体的には、溶融金属が
溶鋼の場合は、石英ガラス、ケイ酸塩ガラス、ソーダ石
灰ガラス、リンケイ酸ガラス、ホウケイ酸ガラス等のガ
ラス、溶融シリカ、窒化珪素等が使用できる。The hot water cutting weir used in the present invention is
Needless to say, it is a substance that does not melt depending on the temperature of the molten metal within the working time required for sampling, but a substance that has poor wettability with the molten metal is selected and used. Specifically, when the molten metal is molten steel, quartz glass, silicate glass, soda lime glass, phosphosilicate glass, borosilicate glass and other glasses, fused silica, silicon nitride and the like can be used.
【００１５】上記湯切り堰は、例えば鋼で構成されたサ
ンプル採取鋳型の上部内周壁部に嵌装配置するものであ
り、その外面構造は鋳型内面構造に相似した形状とする
ことが好ましい。例えば、サンプル採取鋳型の内面、即
ち、採取サンプルを収納する部分は、その製造を簡単に
行うために、深さ方向に若干テーパーを有する円筒状の
凹部に形成されている。従って、上記湯切り堰はその外
面形状を円形状とすればよい。尚、上記湯切り堰はその
外面形状が多角形状であってもよく、逆に、鋳型内面形
状が多角形であっても採取される分析用サンプルとして
は何ら支障はないものである。[0015] The above-mentioned bath drain weir is fitted and arranged in the upper inner peripheral wall portion of a sampling mold made of, for example, steel, and its outer surface structure preferably has a shape similar to the inner surface structure of the mold. For example, the inner surface of the sample-collecting mold, that is, the portion for accommodating the sample to be collected, is formed in a cylindrical recess having a slight taper in the depth direction in order to easily manufacture the sample. Therefore, the shape of the outer surface of the above-mentioned bath drain weir may be circular. In addition, the above-mentioned bath cutting weir may have a polygonal outer surface shape, and conversely, even if the inner surface shape of the mold is polygonal, there is no problem as a sample for analysis to be collected.
【００１６】上記湯切り堰とサンプル採取鋳型との相対
関係において重要なことは、上記サンプル採取鋳型を溶
融金属中に浸漬した際に、該鋳型内に流入する溶融金属
によって湯切り堰に発生する浮力に所定時間だけ対抗し
て保持されていることである。この保持力を得るために
は、上記サンプル採取鋳型の上部内周壁部に湯切り堰
を、例えば、游動しない程度に嵌装配置すればよい。即
ち、上記湯切り堰を嵌装配置したサンプル採取鋳型を溶
融金属中に浸漬することによって、溶融金属の温度及び
浸漬時間によって定まる該鋳型と湯切り堰の温度上昇に
起因する熱膨張によって充分な保持力が発現する。What is important in the relative relationship between the bath cutting weir and the sample collecting mold is that when the sample collecting mold is immersed in the molten metal, the molten metal flowing into the mold causes generation in the bath cutting weir. That is, it is held against buoyancy for a predetermined time. In order to obtain this holding force, a hot water draining dam may be fitted and arranged, for example, to the extent that it does not sway, on the upper inner peripheral wall of the sample collecting mold. That is, by immersing the sample collecting mold in which the above-mentioned hot water cutting weir is fitted and arranged in the molten metal, sufficient thermal expansion due to the temperature rise of the mold and the hot water cutting weir determined by the temperature of the molten metal and the immersion time is sufficient. Holding power is developed.
【００１７】上記湯切り堰による溶融金属の分断効果
は、サンプル採取鋳型の上部内周壁部に嵌装配置した状
態で、該鋳型の上端面から湯切り堰の上端が少しでも突
出していれば期待できるものであるが、不測の事態を考
慮すると２ｍｍ以上突出させることが好ましい。この突
出高さは高くなる程その効果は確実に発揮され、また、
鋳型の上部内周壁部への嵌装配置操作の容易さ等が期待
されるが、この湯切り堰は消耗品であり、あまり高くす
るとその費用が高くなるだけでなく後述する金属製の蓋
の高さが高くなって費用がかかり、経済的でないので例
えば２５ｍｍまでとすることが好ましい。The effect of dividing the molten metal by the above-mentioned melting gate is expected if the upper end of the melting gate is projected from the upper end surface of the mold in a state where it is fitted and arranged in the upper inner peripheral wall of the sampling mold. Although it is possible, it is preferable to project 2 mm or more in consideration of an unexpected situation. The higher this protruding height, the more reliably its effect will be exhibited, and
Although it is expected that the operation of fitting and arranging the mold on the inner wall of the upper part of the mold will be easy, this bath drain weir is a consumable item, and if it is too high, not only will the cost increase, but also the metal lid described later. Since the height is high, the cost is high, and it is not economical, it is preferable to set the height to, for example, 25 mm.
【００１８】上記湯切りの厚みは、その湯切り堰を構成
する物質の材質、溶融金属の温度及び流動圧等の耐久性
の面と、採取された金属サンプル上端部に若干量でも鋳
張りが発生した場合の気送管による搬送での影響を考慮
して設定することができるものであり、例えば、その厚
さは０．１から１０ｍｍとすることが好ましい。The thickness of the above-mentioned hot water drainer is such that the material of the hot water drainage weir, the durability of the molten metal such as temperature and fluid pressure, and the upper end of the sampled metal sample may be slightly cast. It can be set in consideration of the influence of transportation by the pneumatic tube when it occurs, and for example, its thickness is preferably 0.1 to 10 mm.
【００１９】上記サンプル採取鋳型の上端部に嵌装する
金属性の蓋は、サンプル採取鋳型を溶融金属中に浸漬す
る際に、溶融金属浴表面に介在しているスラグが鋳型内
に流入することを防止し、溶融金属中に浸漬したらその
熱で直ちに溶解されるという機能が望まれている。この
金属製の蓋は溶融金属中で溶解して逸散するが、その一
部はサンプル採取鋳型に流入する可能性がある。The metallic lid fitted on the upper end of the sample-collecting mold is such that, when the sample-collecting mold is immersed in the molten metal, the slag existing on the surface of the molten metal bath flows into the mold. It is desired to have a function of preventing the above phenomenon and being immediately dissolved by the heat when immersed in the molten metal. The metal lid melts and dissipates in the molten metal, some of which can flow into the sampling mold.
【００２０】従って該金属製の蓋の材質としては、溶融
金属と同等の成分含有量の金属あるいはその純度が高い
金属、また採取した金属サンプル中の分析対象元素でな
い金属で構成するものである。例えば溶融金属が溶鋼で
ある場合、該溶鋼と同一成分含有量の鋼材もしくはより
高純度の鋼、鉄が使用できる。また、上記サンプリング
対象の溶鋼において、例えば、アルミニウムの分析を実
施しない場合であるとアルミニウム製の蓋とすることが
できる。Therefore, the material of the metallic lid is composed of a metal having a component content equivalent to that of the molten metal or a metal having high purity, or a metal which is not an element to be analyzed in the collected metal sample. For example, when the molten metal is molten steel, a steel material having the same component content as that of the molten steel, steel of higher purity, or iron can be used. Further, in the molten steel to be sampled, for example, when the aluminum is not analyzed, the lid made of aluminum can be used.
【００２１】また、上記金属製の蓋を構成する金属の量
はスラグの流入を防止する範囲において少量であるほど
よく、材質との組合せにおいてその溶解性を考慮してそ
の厚みを設定することが望まれる。例えば炭素濃度２０
ｐｐｍ程度の高純度鋼を用いる場合であると、０．０１
から０．１５ｍｍが好ましい。Further, the amount of metal constituting the metal lid is preferably as small as possible within the range of preventing the inflow of slag, and its thickness can be set in consideration of its solubility in combination with the material. desired. For example, carbon concentration 20
When using high purity steel of about ppm, 0.01
To 0.15 mm is preferable.
【００２２】以下、本発明を図面にもとづいて具体的に
説明する。図１〜図２は溶鋼のサンプリングに適用する
本発明のサンプル採取鋳型１の断面を示している。図示
していないが、サンプル採取鋳型１の側部には該サンプ
ル採取鋳型１を取り扱い操作するための柄が設けられて
いる。該サンプル採取鋳型１はその本体２を鋼で構成さ
れ、その内部にはテーパー状の凹部３を設けてある。The present invention will be described in detail below with reference to the drawings. 1 and 2 show a cross section of a sampling mold 1 of the present invention applied to the sampling of molten steel. Although not shown, a handle for handling and operating the sample collecting mold 1 is provided on a side portion of the sample collecting mold 1. The sample collecting mold 1 has a main body 2 made of steel, and a tapered concave portion 3 is provided inside the main body 2.
【００２３】図１に示したサンプル採取鋳型１は、該サ
ンプル採取鋳型１のテーパー状凹部３を構成する上部内
周壁部に、例えば円筒状の石英ガラスからなる湯切り堰
４を嵌装、配置し、鉄板製の蓋５を嵌装して固定した様
態である。The sample-collecting mold 1 shown in FIG. 1 is fitted and arranged on the inner peripheral wall of the upper part of the sample-collecting mold 1 which constitutes the tapered recessed part 3, for example, a bathing weir 4 made of cylindrical quartz glass. Then, the lid 5 made of an iron plate is fitted and fixed.
【００２４】図２に示したサンプル採取鋳型１は、該サ
ンプル採取鋳型１のテーパー状凹部３を構成する上部内
周壁部に切り欠き段差部を形成し、この切り欠き段差部
に、例えば円筒状の石英ガラスからなる湯切り堰４を嵌
装、配置し、鉄板製の蓋５を嵌装して固定した様態であ
る。The sample-collecting mold 1 shown in FIG. 2 has a notched step portion formed in the upper inner peripheral wall portion forming the tapered concave portion 3 of the sample-collecting mold 1, and the notched step portion has, for example, a cylindrical shape. This is a mode in which the hot water barrier 4 made of quartz glass is fitted and arranged, and the lid 5 made of an iron plate is fitted and fixed.
【００２５】図３に示したサンプル採取鋳型１は、該サ
ンプル採取鋳型１のテーパー状凹部３を構成する上部内
周壁部に、例えば円筒状の石英ガラスからなる湯切り堰
４を嵌装、配置し、該湯切り堰４に鉄板製の蓋５を嵌装
した態様である。The sample-collecting mold 1 shown in FIG. 3 is fitted and arranged on the inner wall of the upper part of the taper-shaped concave portion 3 of the sample-collecting mold 1, for example, a hot water weir 4 made of cylindrical quartz glass. The lid 5 made of an iron plate is fitted on the hot water draining weir 4.
【００２６】図４は、本発明に係わるサンプル採取鋳型
１を用いて溶融金属を採取して得られた金属サンプル６
の外観形状を示している。この金属サンプル６の形状は
その上側部に、該金属サンプル６の最大外径より小さい
小径部７が形成され、上記金属サンプル６の上端部に若
干量でも鋳張りが発生しても、その鋳張りは上記小径部
７の範囲内に収まる。FIG. 4 shows a metal sample 6 obtained by collecting molten metal using the sample collecting mold 1 according to the present invention.
The external shape of is shown. The shape of the metal sample 6 is such that a small diameter portion 7 smaller than the maximum outer diameter of the metal sample 6 is formed on the upper side thereof, and even if a slight amount of casting occurs at the upper end portion of the metal sample 6, the metal sample 6 is cast. The tension falls within the range of the small diameter portion 7.
【００２７】[0027]
実施例１ 図１に示すように、鋳型１の上端内部に石英ガラス製リ
ング状の湯切り堰４を嵌装、配置し、炭素濃度約２０ｐ
ｐｍ、厚さ０．０５ｍｍの高純度鋼製の蓋５を嵌装して
溶鋼のサンプリングを行った。湯切り堰の寸法は厚み２
ｍｍ、長さは３ｍｍ、１０ｍｍ及び２０ｍｍの３種類を
準備した。得られた３つのサンプルは何れも湯切りが完
全に行われており、鋳型１からの取り出しは簡単にでき
た。長さ３ｍｍの場合は部分的に０．７ｍｍ程度のバリ
がでたがサンプル５の最大外径範囲内であり気送管搬送
には全く支障のないものであった。上記各サンプラーか
らのサンプル汚染はなかった。Example 1 As shown in FIG. 1, a quartz glass ring-shaped hot water draining weir 4 was fitted and arranged inside the upper end of a mold 1, and the carbon concentration was about 20 p.
Molten steel was sampled by fitting a lid 5 made of high-purity steel having a thickness of pm and a thickness of 0.05 mm. The thickness of the bathtub is 2
mm, and the length was 3 mm, 10 mm, and 20 mm were prepared. All the three obtained samples were completely drained, and could be easily taken out from the mold 1. When the length was 3 mm, a burr of about 0.7 mm was partially formed, but it was within the maximum outer diameter range of Sample 5, and there was no problem in transporting the pneumatic tube. There was no sample contamination from each of the above samplers.
【００２８】実施例２ 図２に示すように、鋳型１の上端内部を高さ５ｍｍ、幅
２ｍｍ削って段差部を形成し、この段差部に石英ガラス
製リング状の湯切り堰４を嵌装、配置し、炭素濃度約２
０ｐｐｍ、厚さ０．０５ｍｍの高純度鋼製の蓋５を嵌装
して溶鋼のサンプリングを行った。湯切り堰の寸法は厚
み３ｍｍ、長さは７ｍｍ、１０ｍｍ及び２０ｍｍの３種
類を準備した。いずれの場合も湯切りがほぼ完全に行わ
れており、簡単に鋳型１とサンプル６を分離できた。ま
た、上記サンプラーからのサンプル汚染はなかった。Example 2 As shown in FIG. 2, the upper end of the mold 1 was cut to a height of 5 mm and a width of 2 mm to form a step, and a quartz glass ring-shaped melter 4 was fitted in the step. , Arrange, carbon concentration about 2
Molten steel was sampled by fitting a lid 5 made of high-purity steel having a thickness of 0 ppm and a thickness of 0.05 mm. Three types of bathing weir were prepared, having a thickness of 3 mm and a length of 7 mm, 10 mm and 20 mm. In each case, the hot water was removed almost completely, and the mold 1 and the sample 6 could be easily separated. Also, there was no sample contamination from the sampler.
【００２９】実施例３ 図３に示すように、鋳型１の上端部に石英ガラス製リン
グ状の湯切り堰４を嵌装、設置し、この湯切り堰４に炭
素濃度約２０ｐｐｍ、厚さ０．０５ｍｍの高純度鋼製の
蓋５を嵌装して溶鋼のサンプリングを行った。湯切り堰
の寸法は厚み２ｍｍ、長さは５ｍｍ、１０ｍｍ及び２０
ｍｍの３種類を準備した。いずれの場合も湯切りがほぼ
完全に行われており、簡単に鋳型１とサンプル６を分離
することができた。また、上記サンプラーからのサンプ
ル汚染はなかった。Example 3 As shown in FIG. 3, a quartz glass ring-shaped hot water draining weir 4 was fitted and installed on the upper end of the mold 1. The hot water draining weir 4 had a carbon concentration of about 20 ppm and a thickness of 0. Molten steel was sampled by fitting a lid 5 made of high-purity steel of 0.05 mm. The dimensions of the bath cutout weir are 2 mm in thickness and 5 mm in length, 10 mm and 20
Three types of mm were prepared. In each case, the hot water was removed almost completely, and the mold 1 and the sample 6 could be easily separated. Also, there was no sample contamination from the sampler.
【００３０】溶鋼から同じタイミングで採取した３つの
サンプルの各実施例における、湯切り堰の高さ１０ｍｍ
を代表例とし、発光分光分析法による炭素の分析値と不
活性ガス融解法による酸素分析値、鋳型サンプルとの分
離性の結果を表１に示す。[0030] In each of the three samples taken at the same timing from the molten steel, the height of the bath cutting weir 10 mm
Table 1 shows the results of the carbon analysis value by the emission spectroscopic analysis method, the oxygen analysis value by the inert gas melting method, and the separability from the template sample.
【００３１】[0031]
【表１】 [Table 1]
【００３２】[0032]
【発明の効果】本発明によると、サンプル採取において
問題となっているサンプルの取り出し困難性及び成分汚
染現象は認められない。また、簡単にサンプルの取り出
しが行えるので、従来の取り出しで避けられなかった、
サンプル取り出しのための切断工程を削除できるばかり
か、工程間も短縮できる。さらに、サンプルはそのまま
気送管で分析部門まで搬送することが可能であり、成分
調製工程時間も短縮できる。EFFECTS OF THE INVENTION According to the present invention, neither the difficulty of taking out a sample nor the phenomenon of component contamination, which is a problem in sample collection, is observed. In addition, since the sample can be easily taken out, it was unavoidable with conventional taking out,
Not only can the cutting step for sample removal be eliminated, but the steps can be shortened. Furthermore, the sample can be transported as it is to the analysis department by a pneumatic tube, and the component preparation process time can be shortened.
【図１】本発明の実施態様を示す断面説明図。FIG. 1 is a sectional explanatory view showing an embodiment of the present invention.
【図２】本発明の他の実施態様を示す断面説明図。FIG. 2 is a sectional explanatory view showing another embodiment of the present invention.
【図３】本発明のさらに別の実施態様を示す断面説明
図。FIG. 3 is an explanatory sectional view showing still another embodiment of the present invention.
【図４】本発明により採取されるサンプルの斜視図。FIG. 4 is a perspective view of a sample taken according to the present invention.
【図５】従来のサンプルの斜視図。FIG. 5 is a perspective view of a conventional sample.
１ 鋳型 ２ 鋳型１の鋼製本体 ３ テーパー状凹部 ４ 湯切り堰 ５ 金属製の蓋 ６ 金属サンプル ７ 金属サンプルの小径部 DESCRIPTION OF SYMBOLS 1 Mold 2 Steel body of mold 1 3 Tapered concave portion 4 Hot water weir 5 Metal lid 6 Metal sample 7 Small diameter part of metal sample
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 勲 東京都台東区台東１−６−６ リケン工業 株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Isao Tanaka 1-6-6 Taito, Taito-ku, Tokyo Riken Industry Co., Ltd.
Claims (2)
する鋳型において、サンプル採取鋳型の上部内周壁部
に、溶融金属との濡れ性の悪い物質で構成した湯切り堰
を嵌装配置し、上記サンプル採取鋳型の上端部に金属製
の蓋を嵌装することを特徴とする溶融金属から元素分析
用サンプルを採取する鋳型。1. In a mold for collecting a sample for elemental analysis from a molten metal, a hot water weir made of a substance having poor wettability with the molten metal is fitted and arranged on an upper inner peripheral wall of the sample collecting mold. A mold for collecting a sample for elemental analysis from molten metal, characterized in that a metallic lid is fitted on the upper end of the sample collecting mold.
する鋳型において、サンプル採取鋳型の上部内周壁部
に、溶融金属との濡れ性の悪い物質で構成した湯切り堰
を嵌装配置し、上記湯切り堰の上端部に金属製の蓋を嵌
装することを特徴とする溶融金属から元素分析用サンプ
ルを採取する鋳型。2. A mold for collecting a sample for elemental analysis from a molten metal, wherein a bathing weir made of a substance having poor wettability with the molten metal is fitted and arranged on an upper inner peripheral wall of the sample collecting mold, A mold for collecting a sample for elemental analysis from a molten metal, characterized in that a metal lid is fitted on the upper end portion of the bath cutout weir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4354782A JP2639615B2 (en) | 1992-12-17 | 1992-12-17 | A mold for collecting samples for elemental analysis from molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4354782A JP2639615B2 (en) | 1992-12-17 | 1992-12-17 | A mold for collecting samples for elemental analysis from molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06186226A true JPH06186226A (en) | 1994-07-08 |
| JP2639615B2 JP2639615B2 (en) | 1997-08-13 |
Family
ID=18439872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4354782A Expired - Lifetime JP2639615B2 (en) | 1992-12-17 | 1992-12-17 | A mold for collecting samples for elemental analysis from molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2639615B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100450525B1 (en) * | 2002-04-18 | 2004-10-06 | 주식회사 우진 | Sampler for picking molten steel sample |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6184564U (en) * | 1984-11-07 | 1986-06-04 | ||
| JPS63157662U (en) * | 1987-04-03 | 1988-10-17 |
-
1992
- 1992-12-17 JP JP4354782A patent/JP2639615B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6184564U (en) * | 1984-11-07 | 1986-06-04 | ||
| JPS63157662U (en) * | 1987-04-03 | 1988-10-17 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100450525B1 (en) * | 2002-04-18 | 2004-10-06 | 주식회사 우진 | Sampler for picking molten steel sample |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2639615B2 (en) | 1997-08-13 |
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