JPS6343206B2 - - Google Patents
Info
- Publication number
- JPS6343206B2 JPS6343206B2 JP2285080A JP2285080A JPS6343206B2 JP S6343206 B2 JPS6343206 B2 JP S6343206B2 JP 2285080 A JP2285080 A JP 2285080A JP 2285080 A JP2285080 A JP 2285080A JP S6343206 B2 JPS6343206 B2 JP S6343206B2
- Authority
- JP
- Japan
- Prior art keywords
- brick
- layer brick
- inner layer
- hollow
- outer layer
- 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
- 239000011449 brick Substances 0.000 claims description 61
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000004901 spalling Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【発明の詳細な説明】
この発明は、溶鋼通路用耐火煉瓦の製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing refractory bricks for molten steel passages.
製鋼に用いる取鍋用ノズルや下注造塊用湯道煉
瓦を構成する溶鋼通路用耐火煉瓦は、耐スポーリ
ング性に富んだものでないと、すなわち、急激な
熱衝撃が作用しても、キレツやハク離が生じにく
いものでないと、使用中に溶湯漏れ事故を引起す
虞れが生じ、作業に支障を来たし、また、耐溶損
性に富んだものでないと、使用中に非金属介在物
が溶鋼中に混入し、製品の品質を低下させる。 Refractory bricks for molten steel passageways, which make up ladle nozzles and runner bricks for bottom pouring ingots used in steelmaking, must be highly resistant to spalling, that is, they will not break even if subjected to sudden thermal shock. If the material is not resistant to peeling or flaking, there is a risk of molten metal leaking during use, which will hinder work.If the material is not highly resistant to melting, non-metallic inclusions may form during use. It gets mixed into molten steel and reduces the quality of the product.
従つて、上記溶鋼通路用耐火煉瓦としては、耐
スポーリング性及び耐溶損性に富んだものと使用
する必要がある。また、特に、下注造塊用湯道煉
瓦は１回の使用で廃棄されるため、溶鋼通路用耐
火煉瓦は、できるだけ安価な材質で製造する必要
がある。 Therefore, it is necessary to use a refractory brick for the molten steel passageway that is highly resistant to spalling and erosion. Moreover, in particular, since runner bricks for bottom pouring ingots are discarded after one use, firebricks for molten steel passageways need to be manufactured from materials as inexpensive as possible.
そこで、従来は、中空外層煉瓦と耐溶損性に富
んだ中空内層煉瓦とを予め成形しておき、中空外
層煉瓦内に中空内層煉瓦をモルタルまたはモルタ
ルと断熱材等を介して固定することにより、溶鋼
通路用耐火煉瓦を製造し、上記問題に対処してい
た。 Conventionally, hollow outer layer bricks and hollow inner layer bricks with excellent erosion resistance are formed in advance, and the hollow inner layer bricks are fixed within the hollow outer layer bricks via mortar or mortar and heat insulating material. The company manufactured refractory bricks for molten steel passages to address the above problems.
ところが、上記従来の溶鋼通路用耐火煉瓦は、
中空外層煉瓦と中空内層煉瓦とを夫々別個に成形
し、モルタルまたはモルタルと断熱材等を介して
両者を１体化しているので、製造工程が複雑で非
能率的であり、製造コストも高くついていた。 However, the above-mentioned conventional refractory bricks for molten steel passages are
Since the hollow outer layer brick and the hollow inner layer brick are molded separately, and the two are integrated through mortar or mortar and insulation material, the manufacturing process is complicated and inefficient, and the manufacturing cost is also high. there was.
この発明は、上述のような観点に基づきなされ
たものであつて、
中空外層煉瓦と中空内層煉瓦とを夫々予め粗成
形しておき、前記中空外層煉瓦と前記中空内層煉
瓦とをプレス金型内の芯金に同心円状に挿入した
後、前記中空外層煉瓦と前記中空内層煉瓦とを同
時に加圧成形して、前記中空外層煉瓦と前記中空
内層煉瓦とを１体化することに特徴を有する。 The present invention has been made based on the above-mentioned viewpoints, and includes rough forming hollow outer layer bricks and hollow inner layer bricks respectively in advance, and then molding the hollow outer layer bricks and the hollow inner layer bricks in a press mold. It is characterized in that the hollow outer layer brick and the hollow inner layer brick are simultaneously pressure-molded after being inserted concentrically into the core metal, thereby integrating the hollow outer layer brick and the hollow inner layer brick.
この発明を実施例により図面を参照しながら説
明する。 The present invention will be described by way of examples with reference to the drawings.
先づ、第１図及び第２図に示されるように、溶
鋼通路用耐火煉瓦を構成する、中空内層煉瓦１と
中空外層煉瓦２とを予め粗成形する。次に、第３
図に示されるように粗成形した中空内層煉瓦１と
中空外層煉瓦２とをプレス金型３内の芯金４に同
心円状に挿入し、中空内層煉瓦１と中空外層煉瓦
２とを同時に加圧成形する。これにより、中空内
層煉瓦１と中空外層煉瓦２とは１体化され、第４
図に示されるような溶鋼通路用耐火煉瓦５が製造
される。 First, as shown in FIGS. 1 and 2, hollow inner layer bricks 1 and hollow outer layer bricks 2, which constitute refractory bricks for molten steel passages, are roughly formed in advance. Next, the third
As shown in the figure, the roughly formed hollow inner layer brick 1 and hollow outer layer brick 2 are inserted concentrically into the core metal 4 in the press mold 3, and the hollow inner layer brick 1 and the hollow outer layer brick 2 are simultaneously pressed. Shape. As a result, the hollow inner layer brick 1 and the hollow outer layer brick 2 are integrated, and the fourth
A refractory brick 5 for a molten steel passageway as shown in the figure is manufactured.
中空内層煉瓦１としては、耐溶損性に富んだ、
例えばジルコン質の如き原料でできた煉瓦を使用
し、中空外層煉瓦２としては、安価な例えばシヤ
モツト質の如き原料でできた煉瓦を使用する。 As the hollow inner layer brick 1, it is highly resistant to erosion.
For example, a brick made of a raw material such as zircon is used, and as the hollow outer layer brick 2, a brick made of an inexpensive raw material such as siamotite is used.
この発明の方法によれば、従来のように、中空
内層煉瓦と中空外層煉瓦とをモルタル等を介して
固定せず、加圧成形により両者を１体化するの
で、製造工程が簡素化され、しかも、中空内層煉
瓦を耐溶損性に富んだ耐火煉瓦で構成し、中空外
層煉瓦を安価な例えばシヤモツト質煉瓦とするこ
とができるので、低コストで、耐溶損性に富んだ
溶鋼通路用耐火煉瓦が製造でき、更に、２重構造
とすることにより、温度歪を小さくできるので、
耐スポーリング性に富んだ溶鋼通路用耐火煉瓦を
製造できるといつたきわめて有用な効果がもたら
される。 According to the method of the present invention, the hollow inner layer brick and the hollow outer layer brick are not fixed through mortar or the like as in the conventional method, but are integrated by pressure molding, so the manufacturing process is simplified. In addition, the hollow inner layer brick can be made of a fireproof brick with high resistance to melting damage, and the hollow outer layer brick can be made of inexpensive, for example, syamoto brick, making it possible to create a low-cost refractory brick for molten steel passages that is highly resistant to melting damage. can be manufactured, and furthermore, by making it a double structure, temperature distortion can be reduced.
Very useful effects such as being able to manufacture refractory bricks for molten steel passages with high spalling resistance are brought about.
第１図は、粗成形した中空内層煉瓦の斜視図、
第２図は、粗成形した中空外層煉瓦の斜視図、第
３図は、中空内層煉瓦と中空外層煉瓦とをプレス
金型に挿入した状態を示す断面図、第４図は、こ
の発明の方法により製造した溶鋼通路用耐火煉瓦
の斜視図である。図面において、
１……中空内層煉瓦、２……中空外層煉瓦、３
……プレス金型、４……芯金、５……溶鋼通路用
煉瓦。
Figure 1 is a perspective view of a roughly formed hollow inner layer brick;
FIG. 2 is a perspective view of a roughly formed hollow outer layer brick, FIG. 3 is a sectional view showing the hollow inner layer brick and hollow outer layer brick inserted into a press mold, and FIG. 4 is a method of the present invention. It is a perspective view of the refractory brick for molten steel passages manufactured by. In the drawings, 1...Hollow inner layer brick, 2...Hollow outer layer brick, 3
...Press mold, 4...Core metal, 5...Brick for molten steel passage.
Claims (1)
成形しておき、前記中空外層煉瓦と前記中空内層
煉瓦とをプレス金型内の芯金に同心円状に挿入し
た後、前記中空外層煉瓦と前記中空内層煉瓦とを
同時に加圧成形して、前記中空外層煉瓦と前記中
空内層煉瓦とを１体化することを特徴とする溶鋼
通路用耐火煉瓦の製造方法。1. A hollow outer layer brick and a hollow inner layer brick are respectively roughly formed in advance, and after the hollow outer layer brick and the hollow inner layer brick are inserted concentrically into a core metal in a press mold, the hollow outer layer brick and the hollow inner layer brick are inserted into a core bar in a press mold. A method for manufacturing a refractory brick for a molten steel passageway, characterized in that the hollow inner layer brick is press-formed at the same time to integrate the hollow outer layer brick and the hollow inner layer brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2285080A JPS56118811A (en) | 1980-02-27 | 1980-02-27 | Manufacture of fire brick for smelting path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2285080A JPS56118811A (en) | 1980-02-27 | 1980-02-27 | Manufacture of fire brick for smelting path |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56118811A JPS56118811A (en) | 1981-09-18 |
| JPS6343206B2 true JPS6343206B2 (en) | 1988-08-29 |
Family
ID=12094186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2285080A Granted JPS56118811A (en) | 1980-02-27 | 1980-02-27 | Manufacture of fire brick for smelting path |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56118811A (en) |
-
1980
- 1980-02-27 JP JP2285080A patent/JPS56118811A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56118811A (en) | 1981-09-18 |
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