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WO1992001077A1 - Materiau constituant l'electrode d'un four de verrerie - Google Patents

Materiau constituant l'electrode d'un four de verrerie Download PDF

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Publication number
WO1992001077A1
WO1992001077A1 PCT/JP1990/000880 JP9000880W WO9201077A1 WO 1992001077 A1 WO1992001077 A1 WO 1992001077A1 JP 9000880 W JP9000880 W JP 9000880W WO 9201077 A1 WO9201077 A1 WO 9201077A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode material
glass
melting furnace
glass melting
electrode
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.)
Ceased
Application number
PCT/JP1990/000880
Other languages
English (en)
Japanese (ja)
Inventor
Toshio Masaki
Noriaki Sasaki
Shin-Ichiro Torata
Hiroshi Igarashi
Tetsuya Shimizu
Tomohito Iikubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doryokuro Kakunenryo Kaihatsu Jigyodan
Original Assignee
Doryokuro Kakunenryo Kaihatsu Jigyodan
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Doryokuro Kakunenryo Kaihatsu Jigyodan filed Critical Doryokuro Kakunenryo Kaihatsu Jigyodan
Priority to DE69017460T priority Critical patent/DE69017460T2/de
Priority to EP90910178A priority patent/EP0491040B1/fr
Publication of WO1992001077A1 publication Critical patent/WO1992001077A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/60—Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/03—Electrodes

Definitions

  • Electrode materials for glass melting furnaces are Electrode materials for glass melting furnaces
  • the present invention relates to an electrode material for a glass melting furnace, which is suitably used as an electrode material for a glass melting furnace and has excellent erosion resistance in molten glass under electric current.
  • Electrode materials for glass melting furnaces used as electrode materials for glass melting furnaces include, for example, Mo-based alloys containing 0.5 to 5% of Cu: 10 to 60 Ba (Japanese Patent (JP-A-49-88739) and a rit-based alloy containing 1 to 20% of R h and 0.5 to 5% of W (JP-A-53-51124). And those using Ni-based alloys. And for Ni-based alloys, Cr is about 30%,? Inconel 690, a 1 ⁇ 1 alloy containing about 9% of 6, was sometimes used.
  • the electrodes used in this type of glass melting furnace must be excellent in erosion resistance in the molten glass under energization because they are used in the molten glass while energized.
  • the force required to have a high melting point in order to improve the operability of the melting furnace; ', conventional electrode materials are inferior to molten glass erosion resistance, low melting point, etc.
  • Inconel 690 which is a Ni-based base metal based on the above-mentioned components, is not necessarily excellent in corrosion resistance to molten glass, and has a problem that its melting point is as low as about 1350. Was.
  • the wood invention is based on such a conventional electrode made of a Ni fund. It was made in view of the problems of materials, and has excellent corrosion resistance to molten glass when energized, and has a melting point higher than that of the above-mentioned conventional Ni-based inconel, 1350 ° C.
  • An object of the present invention is to provide an Ni-based electrode material for a glass melting furnace which is high and is suitable as an electrode material for a glass melting furnace.
  • the electrode material for a glass melting furnace having excellent erosion resistance in molten glass under energization according to the present invention is as follows: Cr: 25 to 4% by weight; Co: 10 to 45% And, if necessary, Ti: 0.1 to 1.5%; and, if necessary, one or more elements selected from REM (rare earth elements): 0.01 to 0.50%.
  • REM rare earth elements
  • Cr is an element added to secure the corrosion resistance of the electrode used for energizing and melting the glass in the glass melting furnace, and is set to 25% or more to secure the corrosion resistance of such an electrode.
  • the effect is not only saturated, but also the melting point of the electrode is lowered and the toughness is deteriorated.
  • Co increases the melting point of the electrode and improves the operability of the glass melting furnace.
  • it is an element effective for improving the corrosion resistance in the molten glass under energization.
  • the content is set to 1% or more.
  • adding too much not only saturates the effect, but rather degrades the toughness of the electrode, so the content was set to 45% or less.
  • T i is an element effective in improving the corrosion resistance of molten glass to the molten glass when the electrode is energized, and also in improving the releasability of the scale. 0.1% or more may be added as necessary to obtain the effect of improving the properties. However, even if it is added in a large amount, the effect is saturated, and the melting point of the electrode is rather lowered. Therefore, even if it is added, it must be 1.5% or less.
  • R E M rare earth elements 0.01 ⁇ ! ) .5096
  • REM is an element effective for improving the corrosion resistance in molten glass when the electrode is energized. Therefore, 0.01% or more may be added as necessary to obtain such an effect. However, even if it is added in a large amount, the effect is saturated and the toughness of the electrode is rather deteriorated. Therefore, even if it is added, it must be 0.50% or less.
  • Ni was used as the balance because it ensures the erosion resistance of the electrode in the molten glass under energization and is effective in improving the operability of the glass melting furnace due to its high melting point.
  • the electrode material for a glass melting furnace according to the present invention is composed of the above-mentioned chemical components. It is based on Ni, which has a high melting point and excellent corrosion resistance, and adds an appropriate amount of Cr to ensure the corrosion resistance of the electrode to molten glass. An appropriate amount of Co is added to improve the corrosion resistance of the glass, and an appropriate amount of Ti is added as needed to further improve the corrosion resistance and improve the removability of the scale. In order to further improve the corrosion resistance by keeping it inside, an appropriate amount of one or more REM (rare earth element) is added as necessary, so that the In addition to the high erosion resistance, the high melting point has the effect of improving the operability of the melting furnace.
  • REM rare earth element
  • Ni-based alloys of various chemical components shown in Table 1 are melted by vacuum induction melting, and each of the 30 kg of ingot is melted. I took it.
  • Mm is the missing metal (La + Ce) of REM (rare earth element)
  • Comparative Example 1 is Inconel 690.
  • each ingot was subjected to hot forging to form a round bar having a diameter of about 20 mm, and a current was passed at a density of 0.8 A cm 2 in molten borate glass at 1250 ° C.
  • the amount of erosion (abrasion amount) when immersed in current for a long time was examined to evaluate the molten glass erosion resistance. Table 1 also shows the results.
  • the electrode materials composed of the Ni-based alloys of Examples Nos. 1 to 14 of the present invention all showed a reduced amount of erosion in molten borate glass under energization. It was recognized that the corrosion resistance was excellent in the molten glass under electric current. Also, the melting point was higher than that of Inconel 690 (Comparative Example No. 1), which is a conventional Ni base metal, and it was confirmed that the glass melting furnace operability could be improved.
  • the Ni bases of Comparative Examples 1 to 6 have a large amount of erosion in the molten glass under energization, and have a problem in durability when used as an electrode material. Some of them have low melting points.
  • the electrode material for a glass melting furnace according to the present invention is, in terms of% by weight, Cr: 25 to 40%; Co: 10 to 45%; and, if necessary, Ti: 0.1 to 1.5%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)

Abstract

Un matériau constituant une électrode pour un four de verrerie comprend de 25 à 40 % en poids de chrome, de 10 à 45 % en poids de cobalt, éventuellement de 0,1 à 1,5 % en poids de titane, et éventuellement de 0,01 à 0,50 % en poids d'un ou plusieurs métaux des terres rares, le solde étant constitué de nickel et des inévitables impuretés.
PCT/JP1990/000880 1989-01-09 1990-07-09 Materiau constituant l'electrode d'un four de verrerie Ceased WO1992001077A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69017460T DE69017460T2 (de) 1989-01-09 1990-07-09 Elektrodenmaterial für glasschmelzofen.
EP90910178A EP0491040B1 (fr) 1989-01-09 1990-07-09 Materiau constituant l'electrode d'un four de verrerie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP341689A JPH0819505B2 (ja) 1989-01-09 1989-01-09 通電下における溶融ガラス中での耐侵食性に優れたガラス溶融炉用電極材料

Publications (1)

Publication Number Publication Date
WO1992001077A1 true WO1992001077A1 (fr) 1992-01-23

Family

ID=11556782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000880 Ceased WO1992001077A1 (fr) 1989-01-09 1990-07-09 Materiau constituant l'electrode d'un four de verrerie

Country Status (4)

Country Link
EP (1) EP0491040B1 (fr)
JP (1) JPH0819505B2 (fr)
DE (1) DE69017460T2 (fr)
WO (1) WO1992001077A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676191A3 (fr) * 1994-02-22 1996-08-28 Curtis Helene Ind Inc Compositions antiperspirantes déodorantos.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132575C1 (de) * 2001-07-10 2002-07-04 Heraeus Electro Nite Int Feuerfester Ausguss

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662943A (en) * 1979-10-26 1981-05-29 Hitachi Ltd Gas turbine nozzle material
JPS6277446A (ja) * 1985-09-30 1987-04-09 Toshiba Corp ガラス溶融炉用電極合金
JPS62185851A (ja) * 1986-02-13 1987-08-14 Toshiba Corp ガラス製品製造用工具
JPS6254390B2 (fr) * 1983-09-09 1987-11-14 Mitsubishi Kinzoku Kk
JPH0225535A (ja) * 1988-07-14 1990-01-29 Daido Steel Co Ltd 溶融ガラス接触部材用Ｎｉ基合金

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH597364A5 (fr) * 1974-04-11 1978-03-31 Bbc Sulzer Turbomaschinen
US4774149A (en) * 1987-03-17 1988-09-27 General Electric Company Oxidation-and hot corrosion-resistant nickel-base alloy coatings and claddings for industrial and marine gas turbine hot section components and resulting composite articles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662943A (en) * 1979-10-26 1981-05-29 Hitachi Ltd Gas turbine nozzle material
JPS6254390B2 (fr) * 1983-09-09 1987-11-14 Mitsubishi Kinzoku Kk
JPS6277446A (ja) * 1985-09-30 1987-04-09 Toshiba Corp ガラス溶融炉用電極合金
JPS62185851A (ja) * 1986-02-13 1987-08-14 Toshiba Corp ガラス製品製造用工具
JPH0225535A (ja) * 1988-07-14 1990-01-29 Daido Steel Co Ltd 溶融ガラス接触部材用Ｎｉ基合金

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0491040A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676191A3 (fr) * 1994-02-22 1996-08-28 Curtis Helene Ind Inc Compositions antiperspirantes déodorantos.

Also Published As

Publication number Publication date
DE69017460D1 (de) 1995-04-06
EP0491040A4 (en) 1992-12-09
JPH02213439A (ja) 1990-08-24
JPH0819505B2 (ja) 1996-02-28
DE69017460T2 (de) 1995-08-10
EP0491040B1 (fr) 1995-03-01
EP0491040A1 (fr) 1992-06-24

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