JPH031472Y2 - - Google Patents
Info
- Publication number
- JPH031472Y2 JPH031472Y2 JP742986U JP742986U JPH031472Y2 JP H031472 Y2 JPH031472 Y2 JP H031472Y2 JP 742986 U JP742986 U JP 742986U JP 742986 U JP742986 U JP 742986U JP H031472 Y2 JPH031472 Y2 JP H031472Y2
- Authority
- JP
- Japan
- Prior art keywords
- zone
- continuous annealing
- annealing furnace
- plating
- low
- 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
- 238000007747 plating Methods 0.000 claims description 24
- 238000000137 annealing Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 210000004894 snout Anatomy 0.000 description 8
- 239000011449 brick Substances 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は溶融メツキ用連続焼鈍炉に関するもの
である。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a continuous annealing furnace for hot-dip plating.
（従来技術とその問題点）
従来、一般に、溶融メツキ用連続焼鈍炉Ｔは、
第２図に示すように、予熱帯１、加熱帯２、還元
帯３、冷却帯４、低温保持帯５、下端をメツキ浴
槽７の溶融メツキ浴８に浸漬するスナウト部６と
からなる。(Prior art and its problems) Conventionally, in general, the continuous annealing furnace T for fusion plating is
As shown in FIG. 2, it consists of a preheating zone 1, a heating zone 2, a reducing zone 3, a cooling zone 4, a low temperature holding zone 5, and a snout section 6 whose lower end is immersed in a molten plating bath 8 of a plating bath 7.
そして、鋼帯Ｓは前記予熱帯１から装入され、
ここで予熱されて加熱帯２に至り、加熱により鋼
帯Ｓの表面に付着されている油等を燃焼あるいは
熱分解により除去される。 Then, the steel strip S is charged from the preheating zone 1,
Here, it is preheated and reaches the heating zone 2, where oil and the like adhering to the surface of the steel strip S due to heating are removed by combustion or thermal decomposition.
この場合、鋼帯Ｓの表面は若干酸化されるた
め、つぎの還元帯３で還元するとともに、焼鈍す
る。 In this case, since the surface of the steel strip S is slightly oxidized, it is reduced and annealed in the next reduction zone 3.
ついで、この鋼帯Ｓは冷却帯４、低温保持帯５
に至り、所定のメツキ浴浸入温度まで冷却したの
ち、スナウト部６からメツキ浴槽７の溶融メツキ
浴８に浸漬してメツキされるものである。 Next, this steel strip S is passed through a cooling zone 4 and a low temperature holding zone 5.
After cooling to a predetermined plating bath immersion temperature, it is immersed from the snout portion 6 into the molten plating bath 8 of the plating bath 7 to be plated.
ところで、この種溶融メツキ用連続焼鈍炉にお
いては、メツキの種類をZnメツキからAlメツキ
等に変更することがある。そして、この場合に
は、低温保持帯５の露点を約−40℃に再調整する
必要があるが、この調整に約12時間も要し、生産
性が極めて悪いものであつた。 By the way, in this type of continuous annealing furnace for hot-dip plating, the type of plating may be changed from Zn plating to Al plating or the like. In this case, it is necessary to readjust the dew point of the low temperature holding zone 5 to about -40 DEG C., but this adjustment takes about 12 hours, resulting in extremely low productivity.
本考案者らは、前記問題点を解決すべく、種々
検討の結果、従来のものにおいては、前記低温保
持帯５は、その炉壁が総てレンガ張りであり、か
つ、炉温が最高でも650℃と低温であること、ま
た、スナウト部６にはシール装置が設けてある
が、メツキ浴の交換は、鋼帯Ｓを通板した状態で
行うため、このとき、スナウト部から酸素（空
気）が侵入する。 In order to solve the above-mentioned problems, the inventors of the present invention have conducted various studies and found that in the conventional low temperature holding zone 5, the furnace walls are all made of brick, and even when the furnace temperature is the highest, The temperature is as low as 650°C, and although a sealing device is installed in the snout section 6, the plating bath is replaced with the steel strip S passed through it, so oxygen (air) is removed from the snout section at this time. ) invades.
したがつて、前記スナウト部から入つた酸素
は、内張りレンガに吸蔵され、容易に排出されな
いことに起因するものであることが判明した。 Therefore, it was found that the oxygen that entered from the snout portion was occluded by the lining bricks and was not easily discharged.
（問題点を解決すべき手段）
本考案は、前記の点に鑑みてなされたもので、
溶融メツキ用連続焼鈍炉の低温保持帯を、レンガ
で内張りする代わりに、鋼板からなるマツフル構
造としたものである。(Means to solve the problem) The present invention was made in view of the above points,
The low-temperature holding zone of a continuous annealing furnace for molten plating has a pine-full structure made of steel plates instead of being lined with bricks.
（実施例）
つぎに、本考案を一実施例である図面にしたが
つて説明する。(Example) Next, the present invention will be explained with reference to the drawings which are one example.
本考案は、前記第２図に示す溶融メツキ用連続
焼鈍炉Ｔにおいて、低温保持帯５を、第１図に示
すように、内張レンガに代えて、内部を鋼板や気
密性の材料からなるユニツト壁とし、このユニツ
ト壁を組み立ててマツフル構造９としたものであ
る。 In the present invention, in the continuous annealing furnace T for molten plating shown in FIG. 2, the low-temperature holding zone 5 is made of a steel plate or an airtight material instead of the lining brick, as shown in FIG. This is a unit wall, and the unit wall is assembled to form a muffle structure 9.
なお、このユニツト壁の外面は、セラミツクフ
エルト等の保温材１０で被覆してある。また、１
１は搬送ロール、１２は電熱ヒータ等の加熱装置
である。 The outer surface of this unit wall is covered with a heat insulating material 10 such as ceramic felt. Also, 1
1 is a conveyor roll, and 12 is a heating device such as an electric heater.
そして、溶融メツキ浴８を変える場合、メツキ
浴８とともにスナウト部６を取換え、各帯および
スナウト部６の雰囲気を必要に応じ調節する。 When changing the molten plating bath 8, the plating bath 8 and the snout section 6 are replaced, and the atmosphere of each band and the snout section 6 is adjusted as necessary.
（効果）
以上の説明で明らかなように、本考案によれ
ば、スナウト部に連接する低温保持帯は、マツフ
ル構造となつて、炉壁に吸蔵作用がないため、メ
ツキ浴の交換にあたつての露点調整を、従来のも
のの1/5〜1/6に短縮でき、炉内雰囲気の早期安定
を図ることができた。(Effects) As is clear from the above explanation, according to the present invention, the low-temperature holding zone connected to the snout has a pine-full structure and has no occlusion function on the furnace wall, so it is effective when replacing the plating bath. The time required for dew point adjustment was reduced to 1/5 to 1/6 of the conventional method, and the atmosphere inside the furnace could be stabilized quickly.
なお、低温保持帯を、マツフル構造を形成する
鋼板に繊維質系断熱材を設ける構成とし、軽量化
を図るとともに、ユニツト化することにより、据
え付けコストは勿論のこと、溶融メツキ用連続焼
鈍炉そのものを安価なものとすることができる。 In addition, the low-temperature holding zone is constructed by providing a fibrous insulation material on the steel plate that forms the pine-full structure to reduce the weight and by making it into a unit, not only the installation cost but also the continuous annealing furnace itself for molten plating is reduced. can be made inexpensive.
第１図は、本考案にかかる溶融メツキ用連続焼
鈍炉の低温保持帯の断面図で、第２図は従来の溶
融メツキ用連続焼鈍炉を示す説明図である。
Ｔ〜溶融メツキ用連続焼鈍炉、５〜低温保持
帯、９〜マツフル構造。
FIG. 1 is a cross-sectional view of a low-temperature holding zone of a continuous annealing furnace for fusion plating according to the present invention, and FIG. 2 is an explanatory diagram showing a conventional continuous annealing furnace for fusion plating. T - Continuous annealing furnace for melt plating, 5 - Low temperature holding zone, 9 - Pine full structure.
Claims (1)
帯等よりなる溶融メツキ用連続焼鈍炉の低温保
持帯を、マツフル構造としたことを特徴とする
溶融メツキ用連続焼鈍炉。 (2) 前記マツフル構造が、繊維質系断熱材とその
内側表面に鋼板を取り付けたものであることを
特徴とする前記実用新案登録請求の範囲第１項
に記載の溶融メツキ用連続焼鈍炉。[Claims for Utility Model Registration] (1) The low-temperature holding zone of a continuous annealing furnace for molten plating, which consists of a pre-heating zone, a heating zone, a reduction zone, a cooling zone, a low-temperature holding zone, etc., has a pine-full structure. Continuous annealing furnace for molten plating. (2) The continuous annealing furnace for molten plating according to claim 1, wherein the pine-full structure includes a fibrous heat insulating material and a steel plate attached to the inner surface of the fibrous heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP742986U JPH031472Y2 (en) | 1986-01-21 | 1986-01-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP742986U JPH031472Y2 (en) | 1986-01-21 | 1986-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62122858U JPS62122858U (en) | 1987-08-04 |
| JPH031472Y2 true JPH031472Y2 (en) | 1991-01-17 |
Family
ID=30790868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP742986U Expired JPH031472Y2 (en) | 1986-01-21 | 1986-01-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031472Y2 (en) |
-
1986
- 1986-01-21 JP JP742986U patent/JPH031472Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62122858U (en) | 1987-08-04 |
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