JP3165600U - Non-ferrous metal melt holding furnace - Google Patents

Non-ferrous metal melt holding furnace Download PDF

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JP3165600U
JP3165600U JP2010007467U JP2010007467U JP3165600U JP 3165600 U JP3165600 U JP 3165600U JP 2010007467 U JP2010007467 U JP 2010007467U JP 2010007467 U JP2010007467 U JP 2010007467U JP 3165600 U JP3165600 U JP 3165600U
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molten metal
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inner container
outer container
holding furnace
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透 豊島
透 豊島
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アルカエンジニアリング株式会社
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Abstract

【課題】割れやひびの発生等を確実に防止することのできる非鉄金属溶湯保持炉を提供する。【課題手段】内部に非鉄金属溶湯Wを貯える良伝熱耐火材料製内容器10と、内容器10の側壁10aと底壁10bの外面側に隙間を保って配置した耐熱鋼製の外容器20と、内容器10と外容器20との間の隙間に充填された良伝熱耐火材製粉粒物40と、外容器20の側壁10aの外面に設けられたヒーターとで非鉄金属溶湯保持炉1を構成する。【選択図】図2An object of the present invention is to provide a furnace for holding molten non-ferrous metal which can reliably prevent the occurrence of cracks and cracks. Kind Code: A1 An inner container made of a good heat transfer refractory material for storing a non-ferrous metal melt therein, and an outer container made of a heat-resistant steel disposed on the outer surface side of a side wall and a bottom wall of the inner container with a gap therebetween. And a non-ferrous metal molten metal holding furnace 1 comprising a good heat transfer refractory material granule 40 filled in a gap between the inner container 10 and the outer container 20 and a heater provided on the outer surface of the side wall 10 a of the outer container 20. Is composed. [Selection] Figure 2

Description

本考案は、アルミニウムや亜鉛等の非鉄金属を溶解し、その溶解状態(溶湯)を保持するための溶湯保持炉に関するものである。   The present invention relates to a molten metal holding furnace for melting non-ferrous metals such as aluminum and zinc and maintaining the molten state (molten metal).

図5を参照して説明する。アルミニウムや亜鉛などの非鉄金属を溶解し、その溶解状態(溶湯W)を保持するための溶湯保持炉50として、セラミックスなどの耐火材料で形成した内容器51を、同様の耐火材料で形成した外容器52で覆うと共に、溶湯Wを貯えた内容器の内部にヒーター53の略下半分を浸漬した状態で設け、そのヒーター53で非鉄金属を溶解して溶湯Wとし、それを保持するものがある。なお、外容器52は液密性を高める等の目的で、内容器51の数倍の肉厚を備えている。   This will be described with reference to FIG. As a molten metal holding furnace 50 for melting a non-ferrous metal such as aluminum or zinc and maintaining its molten state (molten metal W), an inner container 51 formed of a refractory material such as ceramics is formed of a similar refractory material. Some are covered with a container 52 and provided in a state in which a substantially lower half of a heater 53 is immersed inside an inner container in which a molten metal W is stored, and a non-ferrous metal is melted by the heater 53 to form a molten metal W. . The outer container 52 has a thickness several times that of the inner container 51 for the purpose of improving liquid tightness.

しかし、こうした構成の溶湯保持炉50においては、長期の使用によって内容器51および外容器52に割れやひびが発生した場合、溶湯Wが外部へ漏れ出してしまうといった問題がある。   However, in the molten metal holding furnace 50 having such a configuration, there is a problem that when the inner container 51 and the outer container 52 are cracked or cracked due to long-term use, the molten metal W leaks to the outside.

また、内容器51と外容器52を別の材料で形成した場合、両者の熱膨張率が異なることから、内容器51および外容器52に割れやひびが発生し易いといった問題もある。   Further, when the inner container 51 and the outer container 52 are formed of different materials, the coefficient of thermal expansion of the two is different, so that there is a problem that the inner container 51 and the outer container 52 are easily cracked or cracked.

さらに、ヒーター53を、内容器51の内部にその下半分が溶湯Wに浸漬する状態で設けているので、湯面から露出している部分に付着した溶湯Wが酸化固化(コランダム化)して破損し易くなるといった問題もある。   Further, since the heater 53 is provided in the inner container 51 with its lower half immersed in the molten metal W, the molten metal W adhering to the portion exposed from the molten metal surface is oxidized and solidified (corundum). There is also a problem of being easily damaged.

本考案はこうした問題に鑑み創案されたもので、割れやひびの発生等を確実に防止することのできる非鉄金属溶湯保持炉を提供することを課題とする。   The present invention has been devised in view of these problems, and an object thereof is to provide a non-ferrous metal melt holding furnace capable of reliably preventing the occurrence of cracks and cracks.

図1乃至図4を参照して説明する。請求項1に記載の非鉄金属溶湯保持炉1は、内部に溶湯Wを貯える良伝熱耐火材料製内容器10と、該内容器10の側壁10aと底壁10bの外面に接触状態で設けられた耐熱鋼製の外容器20と、該外容器20の側壁10aの外面に設けられたヒーター30と、を備えることを特徴とするものである。   This will be described with reference to FIGS. The non-ferrous metal molten metal holding furnace 1 according to claim 1 is provided in contact with the outer container 10 made of a good heat transfer and refractory material for storing the molten metal W inside, and the outer surfaces of the side wall 10a and the bottom wall 10b of the inner container 10. The heat-resistant steel outer container 20 and a heater 30 provided on the outer surface of the side wall 10a of the outer container 20 are provided.

請求項2に記載の非鉄金属溶湯保持炉1は、内部に溶湯Wを貯える良伝熱耐火材料製内容器10と、該内容器10の側壁10aと底壁10bの外面側に隙間Gを保って配置した耐熱鋼製の外容器20と、前記内容器10と外容器20との間の隙間Gに充填された良伝熱耐火材製粉粒物40と、前記外容器20の側壁10aの外面に設けられたヒーター30と、を備えることを特徴とするものである。   The non-ferrous metal molten metal holding furnace 1 according to claim 2 maintains a gap G on the outer surface side of the side wall 10a and the bottom wall 10b of the inner container 10, and the inner container 10 made of a good heat transfer refractory material that stores the molten metal W therein. The outer container 20 made of heat-resistant steel, the good heat transfer refractory material granule 40 filled in the gap G between the inner container 10 and the outer container 20, and the outer surface of the side wall 10a of the outer container 20 And a heater 30 provided in the above.

請求項1に記載の非鉄金属溶湯保持炉1は、耐火性及び良熱伝導性並びに耐アルミ侵蝕性に優れた内容器10の側壁10aと底壁10bの外面に耐熱鋼製の外容器20を接触状態で設けており、この外容器20には割れやひびが発生しないので、長期間の使用によって内容器10に割れやひびが発生することがあっても、内容器10の内部に貯えられた溶湯Wは、外容器20のはたらきによって外部への漏出が未然に防止される。   The non-ferrous metal molten metal holding furnace 1 according to claim 1 includes an outer container 20 made of heat-resistant steel on the outer surfaces of the side wall 10a and the bottom wall 10b of the inner container 10 having excellent fire resistance, good thermal conductivity, and aluminum corrosion resistance. Since the outer container 20 is not contacted with any cracks or cracks, it is stored in the inner container 10 even if the inner container 10 is cracked or cracked due to long-term use. The molten metal W is prevented from leaking to the outside by the operation of the outer container 20.

なお、ヒーター30は外容器20の側壁10aの外面に設けているが、当該外容器20によって溶湯Wの漏れが防止されるので、ヒーター30が溶湯Wに直接触れて短絡を引き起こしてしまい、その結果、当該溶湯保持炉1が使用不能になるといった事態も未然に防止することができる。   Although the heater 30 is provided on the outer surface of the side wall 10a of the outer container 20, since the outer container 20 prevents leakage of the molten metal W, the heater 30 directly touches the molten metal W to cause a short circuit. As a result, it is possible to prevent a situation in which the molten metal holding furnace 1 becomes unusable.

請求項2に記載の非鉄金属溶湯保持炉1は、請求項1に記載の考案と同様の効果を発揮する。また、内容器10と外容器20との間の隙間Gに、良伝熱耐火材製粉粒物40を充填しているので、内容器10の割れやひびをより確実に防止することができる。   The nonferrous metal molten metal holding furnace 1 according to claim 2 exhibits the same effect as the device according to claim 1. In addition, since the gap G between the inner container 10 and the outer container 20 is filled with the good heat transfer refractory material granule 40, the inner container 10 can be more reliably prevented from cracking or cracking.

すなわち、内容器10と外容器20は材質が異なるために熱膨張率が異なり、従って、高温加熱時において、両者の間に熱膨張の差が生じる。ここで、この内容器10と外容器20の間の隙間Gに粉粒物40を充填しているので、この粉粒物40が両者の熱膨張の差を吸収する。その結果、内容器10が、外容器20の熱膨張の影響を受けて割れる等の事態が未然に防止される。これにより、非鉄金属溶湯保持炉1の寿命を格段に向上させることができる。   That is, since the inner container 10 and the outer container 20 are made of different materials, they have different coefficients of thermal expansion. Therefore, a difference in thermal expansion occurs between them when heated at a high temperature. Here, since the granular material 40 is filled in the gap G between the inner container 10 and the outer container 20, the granular material 40 absorbs the difference in thermal expansion between the two. As a result, a situation in which the inner container 10 breaks due to the thermal expansion of the outer container 20 is prevented. Thereby, the lifetime of the nonferrous metal molten metal holding furnace 1 can be remarkably improved.

本発明に係る非鉄金属溶湯保持炉の実施形態を示す図2のC−C及び図3のD−Dに相当する水平切断平面図である。It is the horizontal cutting top view equivalent to CC of FIG. 2 and DD of FIG. 3 which shows embodiment of the nonferrous metal molten metal holding furnace which concerns on this invention. 図1のA−A線断面図である。It is the sectional view on the AA line of FIG. 図1のB−B線断面図である。It is the BB sectional view taken on the line of FIG. 図2のX部拡大図である。It is the X section enlarged view of FIG. 従来例に係る非鉄金属溶湯保持炉を示す断面図である。It is sectional drawing which shows the nonferrous metal molten metal holding furnace which concerns on a prior art example.

本考案に係る非鉄金属溶湯保持炉1の実施形態を、図1乃至図4に示す。これは、ダイキャストマシンに溶湯Wを供給するためのものであり、内容器10、外容器20、粉粒物40およびヒーター(パネルヒーター)30とで構成される。   An embodiment of a nonferrous metal molten metal holding furnace 1 according to the present invention is shown in FIGS. This is for supplying the molten metal W to the die-cast machine, and includes an inner container 10, an outer container 20, a powder particle 40 and a heater (panel heater) 30.

内容器10は、黒鉛や炭化硅素等の良伝熱耐火材製で形成され、内部に、アルミニウムや亜鉛などの非鉄金属を溶解して形成した溶湯Wを貯えている。本実施形態に係る内容器10は、溶湯Wを加熱する室である第一加熱部11と第二加熱部兼溶湯Wをダイキャストマシンに供給する室である汲出部12を備え、アルミ材料及び溶湯供給部13を備える。なお、第一加熱部11、第二加熱兼汲出部12および供給部13の境界部分には、略下半部に開口部15を備えた仕切壁14を設けている。また、第一加熱部11には開閉自在の蓋体16を設け、より効率的な加熱を可能としている。   The inner container 10 is made of a good heat transfer refractory material such as graphite or silicon carbide, and stores therein a molten metal W formed by melting a non-ferrous metal such as aluminum or zinc. The inner container 10 according to the present embodiment includes a first heating unit 11 that is a chamber for heating the molten metal W and a pumping unit 12 that is a chamber for supplying the second heating unit and the molten metal W to the die cast machine, and includes an aluminum material and A molten metal supply unit 13 is provided. In addition, the partition wall 14 provided with the opening part 15 in the substantially lower half part is provided in the boundary part of the 1st heating part 11, the 2nd heating and drawing-out part 12, and the supply part 13. As shown in FIG. The first heating unit 11 is provided with an openable / closable lid 16 to enable more efficient heating.

外容器20は、内容器10の側壁10aおよび底壁10bの外面側に隙間Gを保って配置してある。   The outer container 20 is disposed with a gap G on the outer surface side of the side wall 10a and the bottom wall 10b of the inner container 10.

なお、この外容器20は耐熱鋼製であるため液密性に極めて優れており、従って、その肉厚を内容器10の数分の一の薄肉に形成している。これにより、従来技術と比較して、当該保持炉1の体積を大幅に小さくすることができると共に、ヒーター30の熱を溶湯に効果的に供給することができる。   Since the outer container 20 is made of heat-resistant steel, it is extremely excellent in liquid-tightness. Therefore, the thickness of the outer container 20 is formed to be a fraction of the thickness of the inner container 10. Thereby, compared with a prior art, while the volume of the said holding furnace 1 can be reduced significantly, the heat of the heater 30 can be effectively supplied to a molten metal.

粉粒物40は、内容器10と外容器20との間の隙間Gに充填された粒状または粉末状で、黒鉛や炭化硅素等の良伝熱耐火材製である。   The granular material 40 is granular or powder filled in the gap G between the inner container 10 and the outer container 20, and is made of a good heat transfer refractory material such as graphite or silicon carbide.

そして、ヒーター30は外容器20の側壁10aの外面に設けられ、内容器10の内部に貯えられた溶湯Wを加熱し、その状態を保持する。本実施形態では、第一加熱部11と第二加熱兼汲出部12を加熱すべく5箇設けている。このヒーター30は、電力によって高熱を発生させるものである。ヒーター30の外側面及び外容器20の露出外側面並びに底面部分には断熱材Sが設けられている。   And the heater 30 is provided in the outer surface of the side wall 10a of the outer container 20, heats the molten metal W stored in the inside of the inner container 10, and maintains the state. In this embodiment, five units are provided to heat the first heating unit 11 and the second heating / pumping unit 12. The heater 30 generates high heat by electric power. A heat insulating material S is provided on the outer surface of the heater 30 and the exposed outer surface and the bottom surface of the outer container 20.

本実施形態に係る非鉄金属溶湯保持炉1は、耐火材料製内容器10の側壁10aと底壁10bの外面側に耐熱鋼製外容器20を設けており、この外容器20は長期の使用によっても割れたりひびが生じるといったことがない。従って、内容器10に割れやひびが発生することがあっても、外容器20のはたらきによって溶湯Wが外部への漏れ出すことがない。従って、ヒーター30が溶湯Wに触れて短絡し、当該溶湯保持炉1が使用不能になるといった事態を未然に防止することができる。   The non-ferrous metal molten metal holding furnace 1 according to the present embodiment includes a heat-resistant steel outer container 20 on the outer surface side of the side wall 10a and the bottom wall 10b of the inner container 10 made of refractory material. There is no such thing as cracking or cracking. Therefore, even if the inner container 10 is cracked or cracked, the molten metal W does not leak to the outside due to the operation of the outer container 20. Therefore, it is possible to prevent a situation in which the heater 30 touches the molten metal W and short-circuits, and the molten metal holding furnace 1 becomes unusable.

また、外容器20を設けたことにより、内容器10に割れなどが生じて一部が欠落した場合、溶湯Wを一時的に抜き出した後、その欠落部分をパッチング材(耐火物修理材)等を用いて短時間で補修することができる。従って、非鉄金属溶湯保持炉1の全体を取替えることなく再び使用することができ、生産性および経済性に極めて優れる。   Further, when the outer container 20 is provided, when the inner container 10 is cracked and a part of the inner container 10 is missing, the molten metal W is temporarily extracted, and then the missing part is patched (a refractory repair material) or the like. Can be repaired in a short time using Therefore, the entire non-ferrous metal melt holding furnace 1 can be used again without replacement, and the productivity and economy are extremely excellent.

また、この非鉄金属溶湯保持炉1は、内容器10と外容器20との間の隙間Gに、良伝熱耐火材製粉粒物40を充填しているので、高温加熱時において熱膨張率の異なる内容器10と外容器20が異なる度合いで熱膨張すると、その差を粉粒物40が吸収する。これにより、内容器10が、外容器20との熱膨張の差によって割れたり、ひびを生じさせてしまうといった事態を未然に防止することができる。その結果、当該非鉄金属溶湯保持炉1の寿命を大幅に向上させることができる。   Moreover, since this nonferrous metal molten metal holding furnace 1 fills the gap G between the inner container 10 and the outer container 20 with the fine heat transfer refractory material granule 40, the coefficient of thermal expansion is increased during high-temperature heating. When the different inner container 10 and outer container 20 are thermally expanded to different degrees, the powder 40 absorbs the difference. Thereby, the situation where the inner container 10 is cracked or cracked due to the difference in thermal expansion with the outer container 20 can be prevented. As a result, the lifetime of the nonferrous metal molten metal holding furnace 1 can be significantly improved.

また、この非鉄金属溶湯保持炉1は、ヒーター30を外容器20の外面に設けているので、内容器10の内部に溶湯Wに浸漬させた状態で設ける場合のような固化酸化物(コランダム化)を発生させない。従って、溶湯Wにハードスポットが生じ難く、その結果、溶湯Wの品質の大幅な向上を図ることができる。   Moreover, since this nonferrous metal molten metal holding furnace 1 is provided with the heater 30 on the outer surface of the outer container 20, it is solidified oxide (corundumization) like the case where it is provided in the state where the inner container 10 is immersed in the molten metal W. ) Is not generated. Therefore, hard spots hardly occur in the molten metal W, and as a result, the quality of the molten metal W can be greatly improved.

なお、上記実施形態に係る非鉄金属溶湯保持炉1は、内容器10と外容器20との間に隙間Gを形成し、その隙間Gに粉粒物40を充填した構成としているが、本発明はこれに限定されるものではなく、粉粒物40を設けず、内容器10の側壁10aと底壁10bの外面に外容器20を直接接触させた構成とすることもできる。   In addition, although the nonferrous metal molten metal holding furnace 1 which concerns on the said embodiment is set as the structure which formed the clearance gap G between the inner container 10 and the outer container 20, and filled the clearance gap G with the granular material 40, this invention. However, the present invention is not limited to this, and the powder container 40 may not be provided, and the outer container 20 may be in direct contact with the outer surfaces of the side wall 10a and the bottom wall 10b of the inner container 10.

1 非鉄金属溶湯保持炉
10 内容器
10a 側壁
10b 底壁
11 第一加熱部
12 第二加熱兼汲出部
13 供給部
14 仕切壁
15 開口部
16 蓋体
20 外容器
30 ヒーター
40 粉粒物
50 非鉄金属溶湯保持炉
51 内容器
52 外容器
53 ヒーター
G 隙間
S 断熱材
W 溶湯
DESCRIPTION OF SYMBOLS 1 Nonferrous metal molten metal holding furnace 10 Inner container 10a Side wall 10b Bottom wall 11 1st heating part 12 2nd heating and extraction part 13 Supply part 14 Partition wall 15 Opening part 16 Cover body 20 Outer container 30 Heater 40 Powder particle 50 Nonferrous metal Molten metal holding furnace 51 Inner container 52 Outer container 53 Heater G Gap S Thermal insulation W Molten metal

Claims (2)

内部に非鉄金属溶湯(W)を貯える良伝熱耐火材料製内容器(10)と、該内容器の側壁(10a)と底壁(10b)の外面に接触配置された耐熱鋼製外容器(20)と、該外容器の側壁の外面に設けたヒーター(30)と、を備えることを特徴とする非鉄金属溶湯保持炉。   An inner container (10) made of a good heat transfer refractory material that stores molten non-ferrous metal (W) inside, and an outer container made of heat-resistant steel arranged in contact with the outer surfaces of the side wall (10a) and the bottom wall (10b) of the inner container ( 20) and a heater (30) provided on the outer surface of the side wall of the outer container. 内部に非鉄金属溶湯(W)を貯える良伝熱耐火材料製内容器(10)と、該内容器の側壁(10a)と底壁(10b)の外面側に隙間Gを保って配置した耐熱鋼製の外容器(20)と、該内容器と外容器との間の隙間に充填された良伝熱耐火材製粉粒物(40)と、前記外容器の側壁の外面に設けたヒーター(30)と、を備えることを特徴とする非鉄金属溶湯保持炉。   Inner vessel (10) made of a good heat transfer refractory material that stores molten non-ferrous metal (W) inside, and heat-resistant steel arranged with a gap G on the outer surface side of the side wall (10a) and bottom wall (10b) of the inner vessel An outer container (20) made of metal, a good heat-transfer refractory material granule (40) filled in a gap between the inner container and the outer container, and a heater (30 provided on the outer surface of the side wall of the outer container And a nonferrous metal molten metal holding furnace.
JP2010007467U 2010-11-12 2010-11-12 Non-ferrous metal melt holding furnace Expired - Lifetime JP3165600U (en)

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