JPH0120063Y2 - - Google Patents
Info
- Publication number
- JPH0120063Y2 JPH0120063Y2 JP1984144189U JP14418984U JPH0120063Y2 JP H0120063 Y2 JPH0120063 Y2 JP H0120063Y2 JP 1984144189 U JP1984144189 U JP 1984144189U JP 14418984 U JP14418984 U JP 14418984U JP H0120063 Y2 JPH0120063 Y2 JP H0120063Y2
- Authority
- JP
- Japan
- Prior art keywords
- bowl
- spout
- shaped body
- ladle
- arm
- 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
Links
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はアルミニウム及びアルミニウム合金の
溶湯保持炉から溶湯をすくい鋳型に運んで流し込
むためのとりべに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a ladle for conveying and pouring molten aluminum or aluminum alloy from a molten metal holding furnace into a scoop mold.
かかるとりべとしては従来鋳鉄製のとりべが用
いられている。鋳鉄はアルミニウム溶湯により容
易に侵食されるため、一般的にはアルミニウム溶
湯との反応性が乏しく濡れにくいコーテイング材
を塗布して使用している。しかしコーテイング材
の種類、アルミニウム溶湯の組成、コーテイング
技術によつても異なるが、コーテイングの耐用期
間は長くても２週間であり、極端な場合１日で塗
り直しを必要とする場合さえあり、コーテイング
に多大の費用を要するだけでなく、鉄分がアルミ
ニウム溶湯中に混入して汚染する問題があり、更
にとりべの外面に付着した溶湯が保持炉と鋳型と
の間のとりべの通路の下に滴下して溶湯のロス、
設備の汚れを生じたりすること、とりべでの熱の
放散が大きいため溶湯の温度低下が大きい等の問
題があつた。このとりべは、保持炉の溶湯表面に
移動し、支持点を中心として回動し、ひしやくで
湯を汲むように、とりべの一部を溶湯につけて、
溶湯をとりべ内に汲み取り、鋳型まで移動して鋳
型の湯口に、汲み取り側と反対側に突出させた注
出口が下側になるようとりべを回動させて、湯口
に溶湯を注入するので、耐火断熱材のみで、とり
べ本体を形成すると、荷重に耐えうるものが得ら
れず、また鋳鉄等を芯材とし、その内外面に耐火
断熱材をはりつけた場合には、膨張収縮率の違い
から容易に剥離するため使用に耐えなかつた。
As such a ladle, a cast iron ladle has conventionally been used. Since cast iron is easily corroded by molten aluminum, it is generally used by applying a coating material that has poor reactivity with molten aluminum and is difficult to wet. However, depending on the type of coating material, the composition of the molten aluminum, and the coating technology, the lifespan of the coating is at most two weeks, and in extreme cases it may even need to be reapplied within a day. Not only does it cost a lot of money, but there is also the problem of iron contaminating the molten aluminum, and the molten metal adhering to the outer surface of the ladle may be deposited under the passageway of the ladle between the holding furnace and the mold. Loss of molten metal due to dripping,
There were problems such as soiling of the equipment and a large drop in temperature of the molten metal due to large heat dissipation in the ladle. This ladle moves to the surface of the molten metal in the holding furnace, rotates around the support point, and dips a portion of the ladle into the molten metal, as if drawing hot water with a scoop.
The molten metal is pumped into the ladle, moved to the mold, and poured into the sprue of the mold by rotating the ladle so that the spout that protrudes on the side opposite to the pouring side is on the lower side. If the ladle body is formed only with fireproof insulation material, it will not be able to withstand the load, and if the core material is cast iron or the like and fireproof insulation is attached to the inner and outer surfaces, the expansion and contraction rate will be lower. Due to the difference, it peeled off easily and was unusable.
また、実開昭57−141861号の明細書及び図面に
は、レードルをセラミツクで作りその注出口を筒
状に形成して、この筒状部の外周に保持具を嵌合
して取り付けたものが示されている。このレード
ルでは、セラミツクのレードルと金属の保持具と
の熱膨張率の違いから、保持具をレードルの筒状
部の周囲に緊密に嵌合すると、筒状部に応力が集
中して破壊を生ずることになり、また保持具と筒
状部との間にクリアランスがあると、保持具によ
つてレードルを左右に傾けるたびに、ガタガタし
た衝撃を筒状部に与え、破壊に至る問題がある。
その上、レードルが最も細い筒状部だけで保持具
によつて支持されているだけであるため、総ての
荷重がレードルの強度的に最も弱いここに掛かる
ことになるので、筒状部から折れ易いという問題
があつた。 In addition, the specification and drawings of Utility Model Application Publication No. 57-141861 state that the ladle is made of ceramic and has a cylindrical spout, and a holder is fitted to the outer periphery of this cylindrical part. It is shown. With this ladle, due to the difference in coefficient of thermal expansion between the ceramic ladle and the metal holder, if the holder is tightly fitted around the cylindrical part of the ladle, stress will concentrate on the cylindrical part and cause it to break. Furthermore, if there is a clearance between the holder and the cylindrical part, each time the ladle is tilted from side to side by the holder, a rattling impact is applied to the cylindrical part, causing a problem that it may be destroyed.
Furthermore, since the ladle is only supported by the holder at its thinnest cylindrical part, all the load is applied to the weakest part of the ladle, so the load is transferred from the cylindrical part to the weakest part of the ladle. There was a problem with it being easy to break.
本考案は、アルミニウム及びアルミニウム合金
溶湯に濡れにくい耐火断熱材のみでとりべ本体の
椀状部を形成して上記従来のものが有する問題を
なくすると共に、溶湯を汲むための回動及び溶湯
を入れて移動にも耐えうるとりべを供せんとする
ものである。
The present invention eliminates the problems of the conventional ones by forming the bowl-shaped part of the ladle body only with a fireproof insulating material that is difficult to get wet with molten aluminum and aluminum alloy, and also eliminates the need for rotation and molten metal to draw up the molten metal. The purpose is to provide a ladle that can withstand being moved.
本考案はこの目的を達するために、アルミニウ
ム及びアルミニウム合金溶湯に濡れにくい耐火断
熱材のみで成形され開口部を一部外方に突出させ
て形成した注出口を有する椀状体と、該椀状体の
注出口より底部側で注出口の側方に注出口と平行
に突出し、椀状体と同材料で椀状体と一体に成形
されたアーム部と、アーム部の注出口側に対し反
対側の側面と、該側面と同側の椀状体の開口に近
い外側面との二つの部分で取付けられたアーム取
付板とを有する鋳造用とりべを構成したものであ
る。
In order to achieve this objective, the present invention provides a bowl-shaped body that is formed only from a fire-resistant heat insulating material that is difficult to wet with molten aluminum and aluminum alloy, and has a spout formed with an opening partially protruding outward; An arm part that protrudes parallel to the spout on the bottom side of the body from the spout side and is made of the same material as the bowl-shaped body and integrally formed with the bowl-shaped body, and an arm part that is opposite to the spout side of the arm part. This is a casting ladle having an arm mounting plate attached to two parts: a side surface and an outer surface near the opening of the bowl-shaped body on the same side as the side surface.
結晶水を含まない繊維状ウオラストナイト
（SiO2とCaOからなる針状結晶体）と、ハイアル
ミナセメントとを重量比で35：65〜65：35の割合
で混合した。但しハイアルミナセメントは、ブレ
ーン法での比表面積が4000〜5000cm2／ｇのもの
と、8000〜10000cm2／ｇのものとを重量比３：７
〜６：４の割合で使用した。上記混合物に対し外
割りで0.1〜0.5重量％の有機粘結剤（メチルセル
ロース等）を加え、更に長さ10mm以下のポリプロ
ピレンの有機繊維を同じく外割りで0.1重量部を
加え、ウオラストナイトとアルミナセメントの合
計100重量部に対し水40〜45重量部を加え混練し
型に流し込み、24時間型中で養生後、乾燥し、更
に24時間かけて800℃まで昇温し800℃で４時間保
持して図に示す形状の椀状体１を成形した。この
焼成物はアルミニウム及びアルミニウム合金と反
応せず、これらの溶湯に濡れなかつた。椀状体１
は開口部を一部外方に突出した片口状の注出口２
を有しており、注出口２より底部側で注出口２の
側方に、注出口２と平行に突出したアーム部３が
端面を注出口２の端面まで延長させて一体に形成
されている。アーム部３の注出口２側に対し反対
側の側面と、この側面と同側の椀状体１の開口部
に接する外側面とを結ぶように鋼板からなるアー
ム取付板４が配置されている。前記の椀状体の開
口部に接する内側面及びアーム部３の注出口２側
の側面には、鋼板からなる補強用の当て板７が
夫々添えられ、アーム部３及び椀状体１の壁をア
ーム取付板４と当て板７とで挾みそれぞれ両者を
ボルト６で締め付け、アーム取付板４を椀状体１
及びアーム部３に固着してある。注出口２の側方
のアーム部３上方にはアーム取付板４に一体に、
椀状体１の開口面と中心線を平行させ鋼製円筒状
のアーム保持部５が一体に形成されている。アー
ム保持部５は注湯操作機にこのとりべを取付ける
ためのものである。
Fibrous wollastonite (needle-like crystals consisting of SiO 2 and CaO) containing no water of crystallization and high alumina cement were mixed at a weight ratio of 35:65 to 65:35. However, high alumina cement has a specific surface area of 4,000 to 5,000 cm 2 /g according to the Blaine method and one with a specific surface area of 8,000 to 10,000 cm 2 /g in a weight ratio of 3:7.
A ratio of ~6:4 was used. Add 0.1 to 0.5% by weight of an organic binder (such as methyl cellulose) to the above mixture, add 0.1 part by weight of polypropylene organic fibers with a length of 10 mm or less, and add wollastonite and alumina. Add 40 to 45 parts by weight of water to a total of 100 parts by weight of cement, mix, pour into a mold, cure in the mold for 24 hours, dry, heat to 800℃ over 24 hours, and hold at 800℃ for 4 hours. Then, a bowl-shaped body 1 having the shape shown in the figure was formed. This fired product did not react with aluminum and aluminum alloys and did not get wet with their molten metals. Bowl-shaped body 1
is a single-mouthed spout 2 with a part of the opening protruding outward.
An arm portion 3 is integrally formed on the side of the spout 2 on the bottom side of the spout 2, protruding parallel to the spout 2 and extending its end surface to the end surface of the spout 2. . An arm mounting plate 4 made of a steel plate is arranged to connect the side surface of the arm portion 3 opposite to the spout 2 side and the outer surface in contact with the opening of the bowl-shaped body 1 on the same side. . Reinforcing plates 7 made of steel plates are attached to the inner surface in contact with the opening of the bowl-shaped body and the side of the arm portion 3 on the spout 2 side, respectively, and the walls of the arm portion 3 and the bowl-shaped body 1 are is sandwiched between the arm mounting plate 4 and the backing plate 7 and tightened with bolts 6, respectively, and the arm mounting plate 4 is attached to the bowl-shaped body 1.
and is fixed to the arm portion 3. Above the arm part 3 on the side of the spout 2, there is an arm mounting plate 4 integrally installed.
A cylindrical steel arm holding portion 5 is integrally formed with the opening surface of the bowl-shaped body 1 parallel to the center line. The arm holding portion 5 is for attaching this ladle to the pouring operation machine.
本案構造によれば、アーム部は椀状体と同じ断
熱性を有する耐火材で形成され、しかも椀状体の
外に突出しているので、椀状体内部の熔融金属に
よつて高温となることがなく、アーム取付板の椀
状体の開口部に近い外側面への取付部が高温とな
つても、アーム取付板は、アーム部の方に行くに
従つて温度が低下するので、アーム取付板が高温
となつて膨張し椀状体とアーム部との取付部に応
力を生ぜしめることがないので、取付部から応力
破壊をすることを防止出来る。その上、椀状体
は、開口部近くと、底部側との２箇所で、湯を汲
みあるいは排出するための回転力を支持するの
で、１箇所で支持する場合よりも外力に対して支
持部分に生ずる応力が小さくなり、破壊しにくい
ものとなり、耐久性を向上出来る。
According to the proposed structure, the arm portion is made of a fireproof material that has the same heat insulating properties as the bowl-shaped body, and also protrudes outside the bowl-shaped body, so that it does not become hot due to the molten metal inside the bowl-shaped body. Even if the attachment part of the arm attachment plate to the outer surface near the opening of the bowl-shaped body becomes hot, the temperature of the arm attachment plate decreases as it goes toward the arm part, so the arm attachment Since the plate does not expand due to high temperature and generate stress at the attachment portion between the bowl-shaped body and the arm portion, it is possible to prevent stress fracture from occurring at the attachment portion. Furthermore, since the bowl-shaped body supports the rotational force for drawing or discharging hot water in two places, one near the opening and the other on the bottom side, the support part is less susceptible to external forces than when supported in one place. The stress generated in the structure is reduced, making it difficult to break and improving durability.
またこのような構造とすることにより、椀状体
を耐火断熱材のみで構成することが初めて可能と
なり、その結果、椀状体へのアルミニウム付着量
を減少できると共に、保持炉から湯を汲み鋳型に
注ぎ終わるまでの湯の温度低下も小さく出来る。 Also, by adopting this structure, it is possible for the first time to construct the bowl-shaped body only from fireproof insulation material, which reduces the amount of aluminum adhering to the bowl-shaped body, and also makes it possible to draw hot water from the holding furnace and mold it. The drop in temperature of the hot water until the end of pouring can also be minimized.
本案によれば、耐久性、取り扱い性、保温性に
優れた鋳造用とりべを提供出来る。
According to the present invention, a casting ladle with excellent durability, ease of handling, and heat retention can be provided.
第１図は本考案による鋳造用とりべの一実施例
の平面図、第２図は第１図の側面図である。
１……椀状体、２……注出口、３……アーム
部、４……アーム取付板、５……アーム保持部、
６……ボルト、７……当て板。
FIG. 1 is a plan view of an embodiment of a casting ladle according to the present invention, and FIG. 2 is a side view of FIG. 1. 1... Bowl-shaped body, 2... Outlet, 3... Arm part, 4... Arm mounting plate, 5... Arm holding part,
6... Bolt, 7... Back plate.
Claims (1)
にくい耐火断熱材のみで成形され、開口部を一部
外方に突出させて形成した注出口を有する椀状体
と、該椀状体の注出口より底部側で、注出口の側
方に注出口と平行に突出し、椀状体と一体に成形
されたアーム部と、該アーム部の注出口側に対し
反対側の側面と、該側面と同側の椀状体の開口部
に近い外側面との二つの部分で取付られたアーム
板とを有する鋳造用とりべ。 A bowl-shaped body formed only of a fire-resistant heat insulating material that is difficult to wet with molten aluminum and aluminum alloy, and having a spout formed with an opening partially protruding outward, and a bottom side of the bowl-shaped body from the spout, An arm part that protrudes from the side of the spout parallel to the spout and is integrally formed with the bowl-shaped body, a side surface of the arm part on the opposite side to the spout side, and a bowl-shaped body on the same side as the side surface. A casting ladle having an outer surface close to the opening of the casting ladle and an arm plate attached in two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984144189U JPH0120063Y2 (en) | 1984-09-21 | 1984-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984144189U JPH0120063Y2 (en) | 1984-09-21 | 1984-09-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6158960U JPS6158960U (en) | 1986-04-21 |
| JPH0120063Y2 true JPH0120063Y2 (en) | 1989-06-12 |
Family
ID=30702476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984144189U Expired JPH0120063Y2 (en) | 1984-09-21 | 1984-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0120063Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039153Y2 (en) * | 1981-03-03 | 1985-11-22 | 旭硝子株式会社 | ladle |
-
1984
- 1984-09-21 JP JP1984144189U patent/JPH0120063Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6158960U (en) | 1986-04-21 |
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