JPS61245951A - Nozzle for casting - Google Patents
Nozzle for castingInfo
- Publication number
- JPS61245951A JPS61245951A JP8706885A JP8706885A JPS61245951A JP S61245951 A JPS61245951 A JP S61245951A JP 8706885 A JP8706885 A JP 8706885A JP 8706885 A JP8706885 A JP 8706885A JP S61245951 A JPS61245951 A JP S61245951A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- molten steel
- graphite
- castable
- alumina
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ラバープレスによる成形部分とキャスタブル
鋳込み部分とを一体的に組み合わせてなる連続鋳造用ノ
ズルの構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a continuous casting nozzle that is formed by integrally combining a molded part by a rubber press and a castable cast part.
従来の連続鋳造用ノズルは一般にアルミナ−グラファイ
ト質単味から構成されるか、又はそれにスラグライン、
パウダーライン部分をジルコニア−グラファイト質で補
強した複合体からなるものが使用されており、外周加工
されている。Conventional continuous casting nozzles are generally composed of an alumina-graphite material or a slag line,
A composite material is used in which the powder line portion is reinforced with zirconia-graphite material, and the outer periphery is processed.
浸漬部側は未加工のままのものもあるが、フランジ部は
金物等との取合せから加工せざるを得ない。Some parts of the immersed part are left unprocessed, but the flange part has to be processed to accommodate hardware, etc.
全体を上記アルミナ−グラファイト質単味素材で構成す
るものは、仕上がり精度を良くするため、ラバープレス
での成形特図面寸法よりやや太き目に成形したのち加工
し仕上げるために製造のための無駄が大きい。アルミナ
−グラファイト質は一般的に高価であり、このようなも
のを多量に使うことによる無駄、加工ロスによる無駄が
ある。Products that are entirely made of the above-mentioned alumina-graphite single material are formed to be slightly thicker than the special molding drawing dimensions using a rubber press in order to improve finishing accuracy, and then processed and finished, resulting in waste during manufacturing. is large. Alumina-graphite materials are generally expensive, and there is waste due to the use of large amounts of such materials and waste due to processing loss.
また、材質面から見ても予熱時及び使用中のクランク発
生を防止するため、黒鉛を多量に使用しているため、熱
伝導度が高く、使用中に溶鋼の熱がノズル表面より放散
しやすく、ノズル内での溶鋼凝固、アルミナ析出等の問
題が発生する。更にホルダ一部への伝導も多いため、ホ
ルダーが損傷し易いという欠点もある。In addition, in terms of material, in order to prevent cranking during preheating and during use, a large amount of graphite is used, which has high thermal conductivity, making it easier for the heat of molten steel to dissipate from the nozzle surface during use. , problems such as molten steel solidification and alumina precipitation in the nozzle occur. Furthermore, since there is a large amount of conduction to a portion of the holder, there is also the disadvantage that the holder is easily damaged.
本発明の目的は、上記の従来の連続鋳造ノズルの問題点
を解消する点にあり、原料費を低減し、原料ロスがなく
断熱性に優れた連続鋳造用ノズルを提供することにある
。An object of the present invention is to solve the problems of the conventional continuous casting nozzle described above, and to provide a continuous casting nozzle that reduces raw material costs, eliminates raw material loss, and has excellent heat insulation properties.
本発明は、添付図を参照して、スラグライン。 The present invention relates to a slug line, with reference to the accompanying drawings.
パウダーライン部分を含むノズル基体Aをラバープレス
によって成形した従来のアルミナ−グラファイト質、ジ
ルコニア−グラファイト質、マグネシア−グラファイト
質等の耐火物によって構成し、スラグライン、パウダー
ライン部分を除く部分、即ち非接触部分Bをキャスタブ
ルで構成したものである。The nozzle base A including the powder line portion is made of a conventional refractory material such as alumina-graphite, zirconia-graphite, magnesia-graphite, etc. molded by a rubber press, and the portion excluding the slag line and powder line portion, that is, the non- The contact portion B is made of castable material.
上記スラグライン、パウダーライン部分を含むノズル基
体Aを構成する材質としては、第1表に示すものを使用
することができる。As the material constituting the nozzle base A including the slag line and powder line portions, those shown in Table 1 can be used.
また、非接触部分Bを構成するキャスタブルとしては、
第2表に示すものを使用することができる。In addition, the castable that constitutes the non-contact part B is as follows:
Those shown in Table 2 can be used.
また、ノズルの形成に際しては、上記基体Aを、上記非
接触部分Bを除いた形状を有する型枠中で通常のラバー
プレスを用いて成形したのち、基体Aのスラグライン、
パウダーライン部分を除いた非接触部分Bにキャスタブ
ルを鋳込んで一体構造として仕上げるものである。In addition, when forming the nozzle, the base A is molded using a normal rubber press in a mold having a shape excluding the non-contact portion B, and then the slag line of the base A,
Castable is cast into the non-contact portion B excluding the powder line portion to create an integrated structure.
これによって、非接触部分Bを基体Aに比較して低価格
の材質によって構成できるとともに、精度の必要なフラ
ンジ部をキャスタブルで鋳込を行なうため、加工の必要
がなく、更に非接触部分Bを構成する材料の断熱性は、
A部が、12kcal/m、hr、’eの熱伝導性を有
するのに対して、僅かにkcal/m、hr、 ’t:
であるので、使用中の溶鋼の温度低下ひいては凝固、又
はアルミナ析出を防止できる。As a result, the non-contact part B can be made of a material that is less expensive than the base body A, and since the flange part, which requires precision, is castable, there is no need for machining. The insulation properties of the constituent materials are
Part A has a thermal conductivity of 12 kcal/m, hr,'e, whereas it has a thermal conductivity of only 12 kcal/m, hr,'t:
Therefore, it is possible to prevent the temperature of molten steel during use from decreasing, thereby preventing solidification or precipitation of alumina.
以下、実施例によって本発明のノズルの構造と効果を具
体的に説明する。Hereinafter, the structure and effects of the nozzle of the present invention will be specifically explained using Examples.
第1表に示すA部用材質と第2表に示す8部用材質とを
組合せて図に示すノズルを構成した。第3表及び第4表
はその組合せと、その組合せによって得られたノズルの
特性を示す。The nozzle shown in the figure was constructed by combining the material for part A shown in Table 1 and the material for part 8 shown in Table 2. Tables 3 and 4 show the combinations and the characteristics of the nozzles obtained by the combinations.
第1表 A部構成材質及び品質例
第2表 B部構成材質および品質例
第3表 組合せ例
第4表 組合せ例
〔発明の効果〕
本発明によるノズルは、以下のような効果を奏すること
ができる。Table 1 Materials and quality examples of part A component Table 2 Materials and quality examples of part B component Table 3 Combination examples Table 4 Combination examples [Effects of the invention] The nozzle according to the present invention can have the following effects. can.
イ、無加エキヤスタプルとの複層にすることによる原料
費低減。B. Reducing raw material costs by using multiple layers with non-additive exhaust staples.
口、B部材(キャスタブル)使用部の熱伝導度低下によ
り使用中の溶鋼の温度低下ひいては凝固、又はアルミナ
析出ノ防止。The temperature of molten steel during use decreases due to a decrease in the thermal conductivity of the part where the B member (castable) is used, thereby preventing solidification or alumina precipitation.
ハ、キャスタブル化による首部の強度の大幅な向上。C. Significantly improved neck strength by making it castable.
二、酸化防止剤の塗布面が少なくなることによる首部の
酸化による強度劣化の防止。2. Prevention of strength deterioration due to oxidation of the neck due to less coating surface of antioxidant.
添付図は本発明に係るノズルの構造の例を示す図である
。The attached drawings are diagrams showing an example of the structure of a nozzle according to the present invention.
Claims (1)
ス成形したアルミナ−グラファイト質、ジルコニア−グ
ラファイト質、マグネシア−グラファイト質耐火物の単
味又は複合体で構成し、且つ非接触部分をキャスタブル
耐火物で構成したことを特徴とする鋳造用ノズル。1. The base body including the contact surface with molten steel or slag is composed of a single or composite material of rubber press-molded alumina-graphite, zirconia-graphite, or magnesia-graphite refractory, and the non-contact part is castable refractory. A casting nozzle characterized by being made of a material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60087068A JPH0665427B2 (en) | 1985-04-22 | 1985-04-22 | Nozzle for continuous casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60087068A JPH0665427B2 (en) | 1985-04-22 | 1985-04-22 | Nozzle for continuous casting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61245951A true JPS61245951A (en) | 1986-11-01 |
JPH0665427B2 JPH0665427B2 (en) | 1994-08-24 |
Family
ID=13904624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60087068A Expired - Lifetime JPH0665427B2 (en) | 1985-04-22 | 1985-04-22 | Nozzle for continuous casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0665427B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6219234U (en) * | 1985-06-17 | 1987-02-05 | ||
JPH0699254A (en) * | 1992-09-18 | 1994-04-12 | Akechi Ceramics Kk | Nozzle for continuous casting |
JPH06142899A (en) * | 1992-11-10 | 1994-05-24 | Shinagawa Refract Co Ltd | Lower nozzle for casting molten steel |
JPH06154973A (en) * | 1992-11-25 | 1994-06-03 | Akechi Ceramics Kk | Nozzle for continuous casting |
JP2000329619A (en) * | 1999-05-18 | 2000-11-30 | Idemitsu Kosan Co Ltd | Apparatus for measuring temperature of fluid |
CN114555262A (en) * | 2019-10-10 | 2022-05-27 | 里弗雷克特里知识产权两合公司 | Isostatic pressed product for treating molten metal and method for producing same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50127833A (en) * | 1974-03-28 | 1975-10-08 | ||
JPS54101722A (en) * | 1978-01-30 | 1979-08-10 | Shinagawa Refractories Co | Runner brick for bottom pouring casting |
-
1985
- 1985-04-22 JP JP60087068A patent/JPH0665427B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50127833A (en) * | 1974-03-28 | 1975-10-08 | ||
JPS54101722A (en) * | 1978-01-30 | 1979-08-10 | Shinagawa Refractories Co | Runner brick for bottom pouring casting |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6219234U (en) * | 1985-06-17 | 1987-02-05 | ||
JPH05281Y2 (en) * | 1985-06-17 | 1993-01-06 | ||
JPH0699254A (en) * | 1992-09-18 | 1994-04-12 | Akechi Ceramics Kk | Nozzle for continuous casting |
JPH06142899A (en) * | 1992-11-10 | 1994-05-24 | Shinagawa Refract Co Ltd | Lower nozzle for casting molten steel |
JPH06154973A (en) * | 1992-11-25 | 1994-06-03 | Akechi Ceramics Kk | Nozzle for continuous casting |
JP2000329619A (en) * | 1999-05-18 | 2000-11-30 | Idemitsu Kosan Co Ltd | Apparatus for measuring temperature of fluid |
CN114555262A (en) * | 2019-10-10 | 2022-05-27 | 里弗雷克特里知识产权两合公司 | Isostatic pressed product for treating molten metal and method for producing same |
Also Published As
Publication number | Publication date |
---|---|
JPH0665427B2 (en) | 1994-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |