JPS6386825A - Gas blow pipe - Google Patents
Gas blow pipeInfo
- Publication number
- JPS6386825A JPS6386825A JP23004486A JP23004486A JPS6386825A JP S6386825 A JPS6386825 A JP S6386825A JP 23004486 A JP23004486 A JP 23004486A JP 23004486 A JP23004486 A JP 23004486A JP S6386825 A JPS6386825 A JP S6386825A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- pipe
- gas blowing
- ports
- sialon
- 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
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 238000005452 bending Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000006104 solid solution Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- -1 ferrous metals Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 229910052581 Si3N4 Inorganic materials 0.000 abstract description 7
- 239000011819 refractory material Substances 0.000 abstract description 6
- 238000007872 degassing Methods 0.000 abstract description 5
- 238000012856 packing Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 229910005091 Si3N Inorganic materials 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000744 eyelid Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Charging Or Discharging (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ＩＦ ’Ｑ ’２ｔ 、’；４冶解炉に用い
られる脱ガスのためのガス吹込管に関づるものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a gas blowing pipe for degassing used in an IF 'Q '2t,';4 smelting furnace.
従来の技術
非鉄金属溶解炉にＪ３いて、ガス吹込゛ごによりノ＼ｒ
ガスを？８（間中に吹込んでＲ、ａ ａ’ Ｉｉて１１
）１ガスが行なわれている。Conventional technologyIn a non-ferrous metal melting furnace, the
Gas? 8 (Blow in the middle R, a a' Ii te 11
) 1 gas is being conducted.
このガス吹込管は鉄又（よ５Ｊ！Ｉ ｊＪ単独、あるい
はこれらを芯金としてその外ｊミ面に耐火！才を；′１
．・′５したものが用いら（ｔでいる。そして、これら
のガス吹造管は１本のパイプででさたものやその先端部
が複数本に枝分れしたちの専がある。This gas blowing pipe is made of iron or iron (5J!
．．・'5' is used (t.
発明が解決しようとする問題点
しかしながら、上述のＪ、うな３大又は鋳鉄製ガス吹込
管は、溶湯により侵蝕され、溶、ε中への鉄等の溶出が
あり、これが製品中へ不純物として氾入し、材７゛ｉに
悪影響を及ばづ。ガス吹込管の表面に、溶湯による侵蝕
を防ぐために、耐火材を’ｇ：ｒＨＬ’たものも用いら
れているが、使用により剥離したりするので手直しする
必要があり、メインテブンスの工数が必要である。また
、波音により容積と１呈が必要以上に大きくな−）で取
扱いに不便がある。Problems to be Solved by the Invention However, the above-mentioned J, Eel, or cast iron gas blowing pipes are eroded by molten metal, and iron and other substances are leached into the molten metal, which floods into the product as impurities. This will have a negative impact on the material 7゛i. A refractory material 'g:rHL' is also used on the surface of the gas injection pipe to prevent corrosion by molten metal, but it peels off with use, so it needs to be reworked and maintenance work is required. be. In addition, the volume and size of the product are unnecessarily large due to the sound of the waves, which is inconvenient to handle.
本発明は上述のような実状に対応づるため検討を重ねて
創作されたもので、その目的とＪるところは、吹込まれ
たＡｒガスが吹込管の先端で微細な泡が発泡するように
しで１ｌｔ２ガスの効率を向上させ、さらに、ガス吹込
管を構成する各部品の材質を３ ｉ ３ Ｎｕ系セラミ
ック又は１ナイアロンにすることにより、溶湯にス４す
る耐食性および強度を持たせ、高密度化により表面をな
めらかにして溶湯の付着を防止し、なｊ３かつ、被覆耐
火材などの手入れ工数をなくすると共に小型軽量化によ
り取扱いやすくしたガス吹込ｖ・：を（是（共すること
である。The present invention was created after repeated studies in order to cope with the above-mentioned actual situation, and its purpose is to make the Ar gas blown into it form fine bubbles at the tip of the blowing pipe. By improving the efficiency of 1lt2 gas, and by using 3i3Nu ceramic or 1Nylon as the material for each part that makes up the gas blowing pipe, we are able to give the molten metal superior corrosion resistance and strength, and achieve higher density. The gas injection system smoothes the surface and prevents the adhesion of molten metal, eliminates the need for maintenance of coated refractory materials, and is easier to handle due to its smaller size and lighter weight.
問題点を解決するための手段
上記問題点を解決するために本発明は、非鉄ａ属溶解炉
用ガス吹込含においＣ，先３２Ｈ部にポーラスな耐火材
を装着した吹出口を有し、該吹出口ｔこ吹込棒を連通し
て設けたガス吹込管ぐある。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a gas blowing outlet for a non-ferrous Class A melting furnace. There is a gas blowing pipe connected to the blowing outlet and the blowing rod.
さらに、ガス吹込管を（構成する各部品の材質としてＳ
ｉ３Ｎ４系セラミック又はサイアロンを用い、Ｓｉ３Ｎ
４系セラミック又はサイアロンは、曲げ強度が５０ ｋ
Ｍ ｍｍ２以上で、密１良が理論密［ケの９０％以上で
、水中投下法による熱’１！Ｉ Ｚ’Ｊ ｉ易摩がΔＴ
＝４００℃以上をイコするものであるっそして、前記Ｓ
ｉ３Ｎ４系レラミツク又【よ４ｊイアロンはα相を６５
千昂％以上含むＳｉ３Ｎ４７０重ａ％以上と、周期律表
ｍａ族元素の酸化物のなかの１種以上２０重量％以下と
、７へ１２０３２０弔１％以下と、ＡＩＮ固溶体（Ａｌ
Ｎ−Ｓｉ３Ｎ４ ・Ａｌ２Ｏ３系）もしくはへ１Ｎ１５
重量％以下とからなる混合物を焼結したものである。Furthermore, the gas blowing pipe (the material of each component is S)
Using i3N4 ceramic or sialon, Si3N
4 series ceramic or Sialon has a bending strength of 50 k
M mm2 or more, density 1 good is theoretical density [ke] 90% or more, heat '1 by underwater drop method! I Z'J i Ima ga ΔT
= 400℃ or more.And the above S
i3N4 series Relamitsumata [yo4j Iaron has α phase of 65
Si3N containing 1,000% or more, 470% by weight or more, at least 20% by weight of one or more of the oxides of group MA elements of the periodic table, 1% or less of 7 to 120320, and an AIN solid solution (Al
N-Si3N4 ・Al2O3 system) or 1N15
% by weight or less.
また、Ｓｉ３Ｎ４系セラミック又はサイアロンはα損金
６５・■吊％以上含むＳｉ３Ｎ４７０千量ｃ）６以上と
、周期律表ｍａ族元素の酸化物のなかの１秤取上２０重
ａ％以下と、Ａ Ｉ２０３２０ｆｆｌｆｍ％以下とから
なる混合物を焼結したものでもよい。In addition, Si3N4 ceramics or sialon contain more than 470,000% of Si3N, including more than 65% of α loss, and less than 20% by weight of the oxides of group Ma elements of the periodic table, and A It may also be a mixture obtained by sintering a mixture consisting of I20320fflfm% or less.
作 用
吹Δ棒より索込んだＡｒガスは、吹出口の先端部にポー
ラス耐火材が装るされているので、耐火材の微小な空隙
間を通って溶湯中に発泡し、泡をｔａ″ａ化することが
できる。Function: Since the tip of the blowing port is covered with porous refractory material, the Ar gas introduced from the blowing Δ rod passes through the minute gaps in the refractory material and foams in the molten metal, causing the bubbles to ta''. It can be made into a.
さらに、ガス吹込管を構成する各部品の材質を上述のよ
うなＳｉ３Ｎ＝＄系セラミック又はサイアロンにするこ
とにより、溶：εに対する耐食性および高強度を右する
ので、非鉄金属溶湯に）Ｃ蝕されることなり、衝撃荷重
を受けても割れることがない。また、高密度化により表
面がなめらかにｔＺっているので、溶湯のｆＪ ６を防
＋Ｈることかできる。Furthermore, by making the material of each part constituting the gas blowing pipe Si3N = $ system ceramic or sialon as mentioned above, corrosion resistance against ε and high strength are achieved, so that non-ferrous metal molten metal is not corroded by C. This means that it will not crack even if subjected to impact loads. Furthermore, since the surface is smooth due to high density, fJ 6 of the molten metal can be prevented.
実１１パ瞼（ル１ 以下、本発明の実施例を図面に基づいて説明ｊる。Fruit 11 eyelids (le 1 Embodiments of the present invention will be described below based on the drawings.
第１図（ａ）は本発明の実施例に係るガス吹込管の正面
図、（ｂ）は下面図、第２図ｔ、Ｌ第１図の縦断面図で
ある。FIG. 1(a) is a front view of a gas blowing pipe according to an embodiment of the present invention, FIG. 1(b) is a bottom view, and FIG. 2(t) is a vertical sectional view of FIG. 1.
第１図（ａ）および（ｂ）、第２図に示すＪ、うに、ガ
ス吹込・答１は吹込（全２．継手３１分配捧４．吹出口
５より構成されている。継手３にはねじ孔７゜８が連通
して設けられてＩ３す、されぞれ分配外４と吹込捧２を
螺嵌する。J shown in Figures 1 (a) and (b) and Figure 2. Gas blowing/response 1 is composed of 2 joints 31 distribution shafts 4 and air outlet 5. Joint 3 has Threaded holes 7.8 are provided in communication with each other to screw the distribution hole 4 and the blowing rod 2, respectively.
分配外４の他端には中空パイプ状の吹出口５を螺嵌し、
吹出口５の先ｔｉ；空間部に充１．Ｑ ＋４６としてポ
ーラス耐火（イを装るケる。A hollow pipe-shaped outlet 5 is screwed into the other end of the distribution outer 4,
The tip of the air outlet 5; the space is filled with 1. Q +46 as porous fireproof (pretend to be a).
吹込棒２よりＡｒガスを吹込むと、’ｎ％ ｆ ３ 、
分配ｌｉ４を通って吹出Ｄ ５よりＡ、ｒガスは４方向
に分れて流出し、吹出口５には充填材６としてポーラス
耐火材が装着されているので、微小な空隙１３１を通っ
て溶湯中に発泡した泡は徽；’：ｌ （ヒされ、脱カス
の効率が向上する。When Ar gas is blown from the blowing rod 2, 'n% f3,
The A and R gases flow out in four directions from the outlet D5 through the distribution li4, and since the outlet 5 is equipped with a porous refractory material as the filler 6, the molten metal passes through the minute gap 131. The foam that foams inside is heated, which improves the efficiency of removing scum.
ガス吹込管１を（ｊ４成Ｊ−る各部品のＦ ？３として
、Ｓｉ３Ｎ４系セラミック又はサイアロンを用い、その
曲げ強度は６０ｋｇ／ｍｍ２、密度は理−≧密度の９６
％、水中投下法による熱衝撃湿度は八Ｔ＝５００℃であ
る。また、Ｓｉ３Ｎ４系セラミック又はサイアロンはα
相を６５重５％以上３むＳｉ３Ｎ４７０重ε％以上と、
周！’ＩＪ律表［［ａ族元素の酸化物のなかの１秤取上
２０重昂％以下と、Ａｌ２０３２０１量％以下ト、ＡＩ
Ｎ固溶体（ＡｌＮ−８ｉ３Ｎ４ ・Ａｌ２Ｏ３系）もし
くはＡＩ ’Ｎ１５重口％以下とからなる混合物を焼
結したものである。The gas blowing pipe 1 is made of Si3N4 ceramic or sialon, and its bending strength is 60 kg/mm2, and the density is 96
%, and the thermal shock humidity by the underwater drop method is 8T=500°C. In addition, Si3N4 ceramic or sialon is α
The phase is 65% by weight or more and 3% or more by Si3N470% by weight or more,
Zhou! 'IJ table [[1% by weight of oxides of group A elements, not more than 20% by weight, Al203201% by weight or less, AI
It is obtained by sintering a N solid solution (AlN-8i3N4 .Al2O3 system) or a mixture consisting of 15% by weight or less of AI'N.
上記材質のガス吹込管１をアルミニウム溶解炉に用いた
結果、微細な泡が得られ、脱ガスの効率が向上し、さら
に、溶湯による侵蝕は殆んど見られず、使用中の衝撃荷
担や熱衝撃にも充分耐えた。As a result of using the gas blowing pipe 1 made of the above material in an aluminum melting furnace, fine bubbles are obtained and degassing efficiency is improved.Furthermore, there is almost no corrosion due to molten metal, and there is no impact load during use. It also withstood thermal shock well.
また、取り扱いが容易であると共に寿命も従来の鋳鉄製
ガス吹込管に比べ大幅に延び、手入れなしで１年以上の
長寿命となり、使用中の事故がない限り、はぼ半永久的
に使用できることがわかった。In addition, it is easy to handle and has a significantly longer lifespan than conventional cast iron gas blowing pipes, with a lifespan of more than one year without maintenance, meaning that it can be used almost permanently as long as there are no accidents during use. Understood.
ガス吹込管１を構成する各部品の材質は本実旌例のみに
限定されるものではない。他のＳｉ３Ｎ４系セラミック
又はサイアロン、例えばα相を６５重斤％以上含むＳｉ
３Ｎ４７０Φ量％以上ど、周期律表１ｅａ族元素の酸化
物のなかの１腫以上２０重Ｒ％以下と、Ａｌ２０３２０
単但％以下とからなる混合物を焼結したものでもよい。The materials of each component constituting the gas blowing pipe 1 are not limited to those in this practical example. Other Si3N4 ceramics or sialon, such as Si containing 65% or more of α phase
3N470Φ amount% or more, 1% or more and 20% or less of oxides of group 1ea elements of the periodic table, and Al20320
It is also possible to sinter a mixture consisting of 1% or less.
発明の詳細
な説明したように、本発明によれば、吹込棒より吹込ん
だＡｒガスは溶湯中に微細化しで発泡するので、脱ガス
の効率が向上する。さらに本発明は非鉄金属溶解炉用ガ
ス吹込管を構成り“る各部品の材質を高強度を有するＳ
ｉ３Ｎ４系セラミック又はサイアロンにすることにより
、Ｒ命を大幅に向上し得るのみならず、小型軽量のため
取り扱いが容易であると共に使用中の手入れの必Ｂ１を
なくし、また、製品への不粍物の混入を避けろことによ
り悪影響を排除し、−４品を安定かつ良好に製造し得る
などの効果を右するものであって、工業的にその価値は
高い。As described in detail, according to the present invention, the Ar gas blown into the molten metal from the blowing rod becomes fine and foams, so that the efficiency of degassing is improved. Furthermore, the present invention uses high-strength steel as the material of each part constituting the gas blowing pipe for a non-ferrous metal melting furnace.
By using i3N4 ceramic or sialon, not only can the R life be greatly improved, but it is also small and lightweight, making it easy to handle, eliminating the need for maintenance during use, and reducing the risk of impurities in the product. By avoiding the contamination of other substances, the negative effects can be eliminated and -4 products can be produced stably and in good condition.This has high industrial value.
【図面の簡単な説明】
第１図（ａ）は本発明の実施例に係るガス吹込むの正面
図、（ｂ）は下面図、第２図は′ｆＳ１図の縦断面図で
ある。
１・・・ガス吹込管、２・・・吹込棒、５・・・吹出口
、６・・・充填材BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1(a) is a front view of a gas injector according to an embodiment of the present invention, FIG. 1(b) is a bottom view, and FIG. 2 is a longitudinal sectional view of FIG. 'fS1. 1...Gas blowing pipe, 2...Blowing rod, 5...Blowout port, 6...Filling material
Claims (3)
ーラスな充填材を装着した吹出口を有し、各部を構成す
る部品がＳｉ＿３Ｎ＿４系セラミック又はサイアロンに
てなり、前記Ｓｉ＿３Ｎ＿４系セラミック又はサイアロ
ンは、曲げ強度が５０ｋｇ／ｍｍ＾２以上で、密度が理
論密度の９０％以上で、水中投下法による熱衝撃温度が
ΔＴ＝４００℃以上であることを特徴とするガス吹込管
。(1) A gas blowing pipe for melting non-ferrous metals, which has a blowing outlet equipped with a porous filler at the tip, and the parts constituting each part are made of Si_3N_4 ceramic or Sialon, and the Si_3N_4 ceramic or Sialon is A gas blowing tube having a bending strength of 50 kg/mm^2 or more, a density of 90% or more of the theoretical density, and a thermal shock temperature measured by an underwater dropping method of ΔT=400° C. or more.
はα相を６５重量％以上含むＳｉ＿３Ｎ＿４７０重量％
以上と、周期律表IIIａ族元素の酸化物のなかの１種以
上２０重量％以下と、 Ａｌ＿２Ｏ＿３２０重量％以下と、ＡｌＮ固溶体（Ａｌ
Ｎ−Ｓｉ＿３Ｎ＿４・Ａｌ＿２Ｏ＿３系）もしくはＡｌ
Ｎ１５重量％以下とからなる混合物を焼結したものであ
ることを特徴とする特許請求の範囲第１項記載のガス吹
込管。(2) The Si_3N_4 ceramic or sialon is Si_3N_470% by weight containing 65% by weight or more of α phase.
The above, at least 20% by weight of one or more of the oxides of Group IIIa elements of the periodic table, up to 20% by weight of Al_2O_3, and an AlN solid solution (Al
N-Si_3N_4・Al_2O_3 system) or Al
2. The gas blowing tube according to claim 1, wherein the gas blowing tube is made by sintering a mixture consisting of 15% by weight or less of N.
はα相を６５重量％以上含むＳｉ＿３Ｎ＿４７０重量％
以上と、周期律表IIIａ族元素の酸化物のなかの１種以
上２０重量％以下と、 Ａｌ＿２Ｏ＿３２０重量％以下とからなる混合物を焼結
したものであることを特徴とする特許請求の範囲第１項
記載のガス吹込管。(3) The Si_3N_4 ceramic or sialon contains 65% by weight or more of α phase and 70% by weight of Si_3N_4
Claim 1, characterized in that it is a sintered mixture consisting of the above, at least 20% by weight of one or more of the oxides of group IIIa elements of the periodic table, and not more than 20% by weight of Al_2O_3. Gas blowing pipe as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61230044A JP2583492B2 (en) | 1986-09-30 | 1986-09-30 | Gas injection tube for molten aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61230044A JP2583492B2 (en) | 1986-09-30 | 1986-09-30 | Gas injection tube for molten aluminum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6386825A true JPS6386825A (en) | 1988-04-18 |
| JP2583492B2 JP2583492B2 (en) | 1997-02-19 |
Family
ID=16901681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61230044A Expired - Lifetime JP2583492B2 (en) | 1986-09-30 | 1986-09-30 | Gas injection tube for molten aluminum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583492B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549148U (en) * | 1991-12-16 | 1993-06-29 | 日本重化学工業株式会社 | Gas injector for molten metal degassing equipment |
| JP2008200739A (en) * | 2007-02-22 | 2008-09-04 | Japan Metals & Chem Co Ltd | Rotary member for molten metal degassing apparatus, and molten metal degassing apparatus comprising the same |
| WO2010143536A1 (en) * | 2009-06-08 | 2010-12-16 | 三井金属鉱業株式会社 | Lance pipe |
| CN109182655A (en) * | 2018-10-23 | 2019-01-11 | 王子晨 | A kind of Air blowing stick for the low blow of liquid |
| CN109182654A (en) * | 2018-10-22 | 2019-01-11 | 王子晨 | A kind of self-action Air blowing stick for liquid bottom blow |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581025A (en) * | 1981-05-27 | 1983-01-06 | Sumitomo Light Metal Ind Ltd | Treating device of molten metal |
| JPS58163555U (en) * | 1982-04-27 | 1983-10-31 | 住友金属鉱山株式会社 | Chlorine gas blowing pipe for molten metal refining |
-
1986
- 1986-09-30 JP JP61230044A patent/JP2583492B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581025A (en) * | 1981-05-27 | 1983-01-06 | Sumitomo Light Metal Ind Ltd | Treating device of molten metal |
| JPS58163555U (en) * | 1982-04-27 | 1983-10-31 | 住友金属鉱山株式会社 | Chlorine gas blowing pipe for molten metal refining |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549148U (en) * | 1991-12-16 | 1993-06-29 | 日本重化学工業株式会社 | Gas injector for molten metal degassing equipment |
| JP2008200739A (en) * | 2007-02-22 | 2008-09-04 | Japan Metals & Chem Co Ltd | Rotary member for molten metal degassing apparatus, and molten metal degassing apparatus comprising the same |
| WO2010143536A1 (en) * | 2009-06-08 | 2010-12-16 | 三井金属鉱業株式会社 | Lance pipe |
| JP2010279988A (en) * | 2009-06-08 | 2010-12-16 | Mitsui Mining & Smelting Co Ltd | Lance pipe |
| CN109182654A (en) * | 2018-10-22 | 2019-01-11 | 王子晨 | A kind of self-action Air blowing stick for liquid bottom blow |
| CN109182655A (en) * | 2018-10-23 | 2019-01-11 | 王子晨 | A kind of Air blowing stick for the low blow of liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2583492B2 (en) | 1997-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0413308B2 (en) | ||
| CN110511046B (en) | Refractory castable for slag stopping component of continuous casting tundish and preparation method | |
| WO1990011981A1 (en) | Carbonaceous ceramic composite for use in contact whth molten nonferrous metal | |
| EP0593553A1 (en) | Novel aluminum nitride refractory materials and methods for making the same. | |
| CA2059796C (en) | Burner block assembly and material | |
| JPS6386825A (en) | Gas blow pipe | |
| CN107601883A (en) | It is a kind of to apply glaze and the application method of the painting glaze | |
| JP2001132933A (en) | Discharge opening member for melting furnace | |
| CN1418833A (en) | Founding casting non-oxidate containing plate shape material compound zirconium boule refractory brick and production method thereof | |
| US3666507A (en) | Fusion-cast carbide ceramic comprising free-silicon | |
| FI71718B (en) | HYDRAULIC ELDFAST CEMENTBLANDNING ELDFAST DEL OCH FOERFARANDEFOER DESS FRAMSTAELLNING | |
| JP7130903B2 (en) | Refractory materials for low-melting non-ferrous metals | |
| JPH0339031B2 (en) | ||
| JPH0328393B2 (en) | ||
| JPH02180755A (en) | Carbon-containing ceramic composite body for molten nonferrous metal | |
| JP2000095528A (en) | Refractory for molten glass feeder | |
| US5700309A (en) | Method and powder mixture for repairing oxide based refractory bodies | |
| JPH0769744A (en) | Refractory coating material and member for aluminum melt | |
| SU1090676A1 (en) | Refractory composition | |
| JPH03204590A (en) | Coating of inner surface of pottery furnace | |
| CN2525086Y (en) | Smelting cast composite zirconium corundum refractory brick containing non-oxide plate section bar | |
| JPS5943811A (en) | Lance pipe | |
| JP6747033B2 (en) | Nozzles for continuous casting Refractories and nozzles for continuous casting | |
| SU831335A1 (en) | Ingot-mould double-layer coating | |
| JPH05148042A (en) | Monolithic refractory for casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |