JPH04108943U - Hollow continuous casting machine - Google Patents
Hollow continuous casting machineInfo
- Publication number
- JPH04108943U JPH04108943U JP818491U JP818491U JPH04108943U JP H04108943 U JPH04108943 U JP H04108943U JP 818491 U JP818491 U JP 818491U JP 818491 U JP818491 U JP 818491U JP H04108943 U JPH04108943 U JP H04108943U
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- cooling
- continuous casting
- hollow
- casting machine
- 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.)
- Pending
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000001704 evaporation Methods 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 9
- 238000005266 casting Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
(57)【要約】
【目的】 製品の内径が小さいか又は厚肉の場合にもマ
ンドレルを完全に効率よく冷却出来るホロ―連続鋳造機
を提供すること。
【構成】 中空のマンドレル２内部に接触してヒ―トパ
イプの蒸発部３を設けて伝熱によって冷却を促進でき
る。
(57) [Summary] [Purpose] To provide a hollow continuous casting machine that can completely and efficiently cool a mandrel even when the inner diameter of the product is small or thick. [Structure] A heat pipe evaporation section 3 is provided in contact with the inside of the hollow mandrel 2 to promote cooling by heat transfer.
Description
【０００１】0001
本考案は、ホロ―ビレットを連続的に鋳造するためのホロ―連続鋳造機に関す る、特に冷却効率を上げるためのホロ―鋳造用マンドレルの構造に関するもので ある。 This invention relates to a hollow continuous casting machine for continuously casting hollow billets. In particular, it concerns the structure of hollow casting mandrels to increase cooling efficiency. be.
【０００２】0002
穴あきのビレットを連続的に鋳造するホロ―連続鋳造機の溶融金属を冷却する 鋳型は外側の鋳型と穴あき部を作る内側の鋳型から成り立ち、外側の鋳型は水冷 を行い、内側の鋳型（以後マンドレルと称す）はマンドレル内に気体を流してマ ンドレルを冷却したり、またはまったく冷却をせず、鋳造を行っている。 Cooling molten metal in a hollow continuous casting machine that continuously casts billets with holes The mold consists of an outer mold and an inner mold that creates the perforated part, and the outer mold is water-cooled. The inner mold (hereinafter referred to as the mandrel) is molded by flowing gas into the mandrel. Casting is carried out without cooling the cast iron or without cooling it at all.
【０００３】0003
通常の連続鋳造の場合は、水冷鋳造が使われている。しかし、マンドレルを水 冷にした場合、鋳造サイズにより、マンドレルが細い場合水冷にするのが困難で ある。また、水冷にした場合、マンドレルの強度不足から鋳造中に温度差により マンドレルが破損する可能性があり、高温の溶湯に冷却水がふれた場合、水蒸気 爆発が起こることもあるため、マンドレルを水冷にする事はあまり好ましくない 。 In the case of normal continuous casting, water-cooled casting is used. However, water the mandrel When cooling, depending on the casting size, water cooling is difficult if the mandrel is thin. be. In addition, when using water cooling, due to temperature differences during casting due to the lack of strength of the mandrel, The mandrel may be damaged, and if cooling water comes into contact with hot molten metal, water vapor may Water-cooling the mandrel is not recommended as explosions may occur. .
【０００４】 そこで空冷にしているが、マンドレル内に気体を流し空冷にしても、マンドレ ル−気体間の熱伝達率があまり大きくなく、気体の流速を上げても、水冷した場 合と比較してそれほど効果ない。0004 Therefore, air cooling is used, but even if air cooling is performed by flowing gas inside the mandrel, the mandrel The heat transfer coefficient between the gas and the gas is not very high, and even if the gas flow rate is increased, water-cooled It is not that effective compared to
【０００５】 ホロ―鋳造において、特に製品の内径が小さいか厚肉の場合、マンドレル径も 小さく伝熱面積が小さいので、安全で効率のよい冷却方法が要望されていた。[0005] In hollow casting, the mandrel diameter is also important, especially when the inner diameter of the product is small or thick Since it is small and has a small heat transfer area, there was a need for a safe and efficient cooling method.
【０００６】 本考案の目的は、前記した従来技術の欠点を解消し、製品の内径が小さいか又 は厚肉の場合でも、マンドレルを完全に効率よく冷却出来るホロ―鋳造用マンド レルを提供することにある。[0006] The purpose of the present invention is to eliminate the drawbacks of the prior art described above, and to is a hollow casting mandrel that can completely and efficiently cool the mandrel even in the case of thick walls. The goal is to provide the right information.
【０００７】[0007]
本考案の要旨は、マンドレルの内部に間隔をへだててヒ―トパイプを配し、マ ンドレルの冷却効率を上げたものである。 The gist of this invention is that heat pipes are arranged at intervals inside the mandrel. This improves the cooling efficiency of the cold chain.
【０００８】 即ち、本考案の目的は、外側の鋳型と穴あき部を作る内側の鋳型から成る穴あ きビレットを連続的に鋳造するホロ―連続鋳造機のマンドレルを中空とし、その 中空部内に間隙をへだててヒ―トパイプの蒸発部を設けることによって達成され る。[0008] That is, the purpose of the present invention is to create a perforated mold consisting of an outer mold and an inner mold for forming the perforated part. The mandrel of the hollow continuous casting machine, which continuously casts billets, is hollow. This is achieved by providing a heat pipe evaporation section with a gap inside the hollow section. Ru.
【０００９】 本考案においては、ヒ―トパイプの蒸発部をマンドレルから離して設置するの で、ヒ―トパイプにフインを取付けてふく射面積を増やすか、又はヒ―トパイプ の本数を多く入れてマンドレル内の間隙にはＮ2等の冷却媒体用気体を流すこと ができる。In the present invention, the evaporation part of the heat pipe is installed away from the mandrel, so either fins are attached to the heat pipe to increase the irradiation area, or more heat pipes are installed to increase the area inside the mandrel. A cooling medium gas such as N 2 can be flowed through the gap.
【００１０】 尚、本考案において用いられるヒ―トパイプの作動媒体には、蒸発温度の比較 的低い水、アンモニア、メタノ―ル等を用いることが出来る。0010 The working medium of the heat pipe used in this invention has a comparative evaporation temperature. It is possible to use water, ammonia, methanol, etc., which have a low carbon content.
【００１１】[0011]
以下に図面を参照して、本考案の一実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
【００１２】 図１は、ホロ―ビレット連続鋳造機の一部縦断面図である。0012 FIG. 1 is a partial vertical sectional view of a hollow billet continuous casting machine.
【００１３】 １、２の部分が鋳型で、１が外側、２がマンドレルである。４は、溶湯で１、 ２の鋳型およびマンドレルで冷却され凝固し製品となる。[0013] Parts 1 and 2 are the mold, 1 is the outside, and 2 is the mandrel. 4 is 1 for molten metal, The product is cooled and solidified in the mold and mandrel in step 2.
【００１４】 １の外側の鋳型は、従来から行なわれているように鋳型内に冷却水を流す水冷 式鋳型である。[0014] The outer mold of No. 1 is water-cooled by flowing cooling water into the mold as conventionally done. It is a type mold.
【００１５】 ２のマンドレルは、製品の形状からあまり太くする事が出来ない場合、水冷に すると構造が複雑になり、強度的にも問題がある。そこで、図１に示すようにマ ンドレル２の内部に間隔をへだててヒ―トパイプの蒸発部３を挿入し、マンドレ ル２の内面とヒ―トパイプの蒸発部３とのふく射により冷却を行なう事で、単に 気体を流し空冷にした場合よりもより大きい冷却効果を得る事が出来る。[0015] If the mandrel in step 2 cannot be made too thick due to the shape of the product, it can be water cooled. This makes the structure complicated and poses problems in terms of strength. Therefore, as shown in Figure 1, Insert the evaporation part 3 of the heat pipe into the mandrel 2 with a gap between them, and Cooling is achieved by radiation between the inner surface of the tube 2 and the evaporation section 3 of the heat pipe. A greater cooling effect can be obtained than when air cooling is performed by flowing gas.
【００１６】 ヒ―トパイプを単に挿入し、熱ふく射により冷却した場合の冷却量は１００Ｗ ／（ｍ2・ｋ）適度であり、これはマンドレル２内に３０ｍ／Ｓで窒素を流した 場合に相当する。[0016] When the heat pipe is simply inserted and cooled by thermal radiation, the cooling amount is moderate at 100W/(m 2 ·k), which is equivalent to flowing nitrogen at 30m/S into the mandrel 2. do.
【００１７】 そこでヒ―トパイプ３をマンドレル２に挿入し、さらにマンドレル２とヒ―ト パイプ３の隙間に窒素を流し対流による冷却を並用する事で２００Ｗ／（ｍ2／ Ｋ）程度の冷却を得ることが出来る。[0017] Therefore, by inserting the heat pipe 3 into the mandrel 2, and then flowing nitrogen into the gap between the mandrel 2 and the heat pipe 3, and also cooling by convection, a cooling of about 200 W/(m 2 / K) is obtained. I can do it.
【００１８】 マンドレル内部に流せる気体の流速を速くする事で、冷却量を多くする事が出 来るが、流す気体の流速には限度があるため、ヒ―トパイプを組み合わせる事に より、より冷却量を大きくする事が出来る。[0018] By increasing the flow rate of gas inside the mandrel, the amount of cooling can be increased. However, there is a limit to the flow rate of the gas, so we decided to combine it with a heat pipe. Therefore, the amount of cooling can be increased.
【００１９】 又図２のようにマンドレル２とヒ―トパイプ３の間にフィン５を入れる事でマ ンドレルとヒ―トパンプ間のふく射の効率を上げることも好ましい。[0019] Also, as shown in Figure 2, by inserting fins 5 between mandrel 2 and heat pipe 3, It is also desirable to increase the efficiency of radiation between the heat pump and the heat pump.
【００２０】 又図３のようにマンドレル２内に挿入するヒ―トパイプ３の本数を複数にして これにより、みかけ上一本のヒ―トパイプより表面積を増やし冷却熱量を増加さ す事が出来るため、ふく射の効率は上がる。この方法はヒ―トパイプの製造出来 るサイズには限度があるため、マンドレルの内径が大きい場合に有効である。[0020] Also, as shown in Fig. 3, the number of heat pipes 3 inserted into the mandrel 2 is plural. This increases the surface area and the amount of cooling heat compared to the appearance of a single heat pipe. This increases radiation efficiency. This method can be used to manufacture heat pipes. Since there is a limit to the size of the mandrel, it is effective when the inner diameter of the mandrel is large.
【００２１】[0021]
【考案の効果】 以上本考案のマンドレルを用いることにより、空冷によりマンドレルを冷却す るのと比較し、より効率よく冷却を行う事が出来る。[Effect of the idea] As described above, by using the mandrel of the present invention, the mandrel can be cooled by air cooling. Cooling can be performed more efficiently compared to the conventional method.
【００２２】 これにより、従来破壊を防ぐため長くするしかなかったマンドレルを短かく出 来るためマンドレルの強度も上がる。[0022] As a result, the mandrel, which previously had to be made long to prevent breakage, can be made shorter. This increases the strength of the mandrel.
【００２３】 また、水冷にするのと比べ、構造的にも簡単で、破損したときの水蒸気爆発を 防ぐことが出来るため安全性も高い。[0023] Also, compared to water cooling, it is structurally simpler and prevents steam explosions in the event of damage. It is highly safe as it can be prevented.
【図１】本考案の連続鋳造機の部分側面断面図。FIG. 1 is a partial side sectional view of a continuous casting machine of the present invention.
【図２】本考案の変形例を示すマンドレルの切断面図。FIG. 2 is a cross-sectional view of a mandrel showing a modification of the present invention.
【図３】本考案の別の変形例を示すマンドレルの切断面
図。FIG. 3 is a cross-sectional view of a mandrel showing another modification of the present invention.
１ 外側鋳型 ２ マンドレル（内側の鋳型） ３ ヒ―トパイプの蒸発部 ４ 製造されるインゴット（溶湯） ５ フィン 1 Outer mold 2 Mandrel (inner mold) 3 Evaporation section of heat pipe 4 Manufactured ingot (molten metal) 5 fins
Claims (1)
ら成る穴あきビレットを連続的に鋳造するホロ―連続鋳
造機において、中空のマンドレル内に間隔を隔ててヒ―
トパイプの冷却部を設けたことを特徴とするホロ―連続
鋳造機。Claim 1: A hollow continuous casting machine that continuously casts a perforated billet consisting of an outer mold and an inner mold forming a perforated part, in which heat molds are placed at intervals within a hollow mandrel.
A hollow continuous casting machine characterized by a cooling section for the top pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP818491U JPH04108943U (en) | 1991-02-22 | 1991-02-22 | Hollow continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP818491U JPH04108943U (en) | 1991-02-22 | 1991-02-22 | Hollow continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04108943U true JPH04108943U (en) | 1992-09-21 |
Family
ID=31899340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP818491U Pending JPH04108943U (en) | 1991-02-22 | 1991-02-22 | Hollow continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04108943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014204647A (en) * | 2013-04-10 | 2014-10-27 | 株式会社日立製作所 | Rotary electric machine or wind generator system |
-
1991
- 1991-02-22 JP JP818491U patent/JPH04108943U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014204647A (en) * | 2013-04-10 | 2014-10-27 | 株式会社日立製作所 | Rotary electric machine or wind generator system |
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