WO1988000576A1 - Borate-containing insulating refractory for use in electric heater - Google Patents

Borate-containing insulating refractory for use in electric heater Download PDF

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Publication number
WO1988000576A1
WO1988000576A1 PCT/JP1987/000528 JP8700528W WO8800576A1 WO 1988000576 A1 WO1988000576 A1 WO 1988000576A1 JP 8700528 W JP8700528 W JP 8700528W WO 8800576 A1 WO8800576 A1 WO 8800576A1
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WO
WIPO (PCT)
Prior art keywords
heating element
borate
refractory
electric heater
insulating refractory
Prior art date
Application number
PCT/JP1987/000528
Other languages
French (fr)
Japanese (ja)
Inventor
Goro Satoh
Original Assignee
Satoh, Hiroshi
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 Satoh, Hiroshi filed Critical Satoh, Hiroshi
Publication of WO1988000576A1 publication Critical patent/WO1988000576A1/en
Priority to KR1019880700292A priority Critical patent/KR880701691A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide

Definitions

  • the present invention relates to a supporting fire having a function of suppressing oxidative depletion of a high-spilled-metal-gold heating element.
  • the gold heating element is mainly heated in the air at high pressure, erosion and corrosion will escape, and eventually it will be cut off. In the important section S, improvement of the material of the heating element is being promoted.
  • the supporting refractory insulator was referred to as a supporting refractory material 18 which was immersed in a material that did not react with the oxide.
  • the present invention is not intended to be an extinguishing ⁇ -type as described above, but rather, by providing an effective component to the surface of the heating element of the refractory refractory ⁇ 9 It is a ⁇ type that also improves protection.
  • two types of heat-generating elements for heat shielding are used: Ki-Cr3R (-cum wire) and Fe-Cr-Al yarn (typically, bran). Practical use, the latter at higher port! ! W of invention
  • the round-shaped one was a Cou-shaped spring, and the one was bent in a zigzag shape. They can support and demonize.
  • the present invention by containing a 0/1 or more beta 2 0 3 in the «KiHajimeo refractory, the oxidation rate of the quotient ffi Niogeru heating element is luck tool, The material of the new electric iftllii fire and the nuclear dragon that the life of the ⁇ fruit heating element is prolonged. Following this 13 ⁇ 4 » « rack 3 ⁇ 4 predicates Bae 3 ⁇ 4 ⁇
  • the material used for the maturation was a chemically crude Fe-Cr-Al system consisting of Fe 71X, Cr »23%, and Al 6X. thing also, it is obtained by the Coil facedown outside ⁇ 10 ⁇ ⁇
  • the electric heating device provided by the present invention is used industrially and exerts its effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Resistance Heating (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

An insulating refractory which contains a small amount of a borate. When used as a support for an Fe-Cr-Al heating element and other structural refractories, the refractory can markedly reduce the oxidation rate of the heating element, thus prolonging the life of the element.

Description

明 糠 書  Akira Nuka
珊 tt を含有す《電熱装匿用竃気鉋綠》火物 技術分  《Container tt 《Heat Plane for Electric Heating 綠》》
本発明は， 高溢電然装魔用金厲発熱体の酸化消耗を抑制する作/ 8 有する 支持 火 に Wする。  The present invention relates to a supporting fire having a function of suppressing oxidative depletion of a high-spilled-metal-gold heating element.
挟術背晕  Squeezing back
金厲発熱体は， 主として空気中で高通に加熱 れるので， Κ化 Λ食が逸行 し， やがて断綠すろのであ 3* 商》用鼋魆 置としては， ¾ 体の酸化損傷' が最も重要な課 Sでぁゥて， 発熱体の材質の改良が進められているのである 、が， 未だ 分 は耆ぃ得ないのである。  Since the gold heating element is mainly heated in the air at high pressure, erosion and corrosion will escape, and eventually it will be cut off. In the important section S, improvement of the material of the heating element is being promoted.
従来， Ki«Cr糸（： =クローム糠)及び Pe-Cr-Al 系 (代表的にはカンタル糠）の 金 »発熱休はその表面に生成する酸化《被狭が内郎への酸化を抑制する効果に より， 高攝において長 ISの «Γ用に Wえ Φのである。 従って， それ 支持す ¾耐火絶縁物はその酸化物と反応しないものが浸れた支持耐火 18»物と称 STれ ていた。 本 ¾明は' 上述の如き消 β的なものでなく， ま持耐火絕緣物が発熱体 の我面に 成す 化《9«属に有効な成分を供拚することにより， Κ化物被 Κ の保護性も向上させる βΐβ的なものである。 高 «熱装匿用金舰発熱体とし ては， 一般的には Ki-Cr3R (-ク Π—ム線)及び Fe-Cr-Al 糸 (代表的にはカンタ ル糠)の 2種類が， 実用に供 れており， 後者の方がより高港に！!えるのである。 発明の W示  Conventionally, gold of Ki «Cr yarn (: = chrome bran) and Pe-Cr-Al (typically Kanthal bran)» Heat generation is caused by oxidation generated on its surface Due to the effect of the above, W Φ is used for the long IS «高 in high setting. Therefore, the supporting refractory insulator was referred to as a supporting refractory material 18 which was immersed in a material that did not react with the oxide. The present invention is not intended to be an extinguishing β-type as described above, but rather, by providing an effective component to the surface of the heating element of the refractory refractory <9 It is a βΐβ type that also improves protection. In general, two types of heat-generating elements for heat shielding are used: Ki-Cr3R (-cum wire) and Fe-Cr-Al yarn (typically, bran). Practical use, the latter at higher port! ! W of invention
金属発熱体は， 丸輙状のものは CoU状に春いた状懋で， 状のものはジクザク 状に曲げた扰攄で， 電気 ««»火物に設けられて'い ¾»に揮入レて支持きれて， 魔を しているのである。 本発明は， この «気始織耐火物に 0·1 以上 の Β203を含有させることにより， 商 ffiにおげる発熱体の酸化速度が運ぐなり， その β果発熱体の寿命が長くな という新しい電気 iftllii火物の材質とその 核龍に Mするものであ 。 以下 この 1¾»«架¾述ぺ ¾β As for the metal heating element, the round-shaped one was a Cou-shaped spring, and the one was bent in a zigzag shape. They can support and demonize. The present invention, by containing a 0/1 or more beta 2 0 3 in the «KiHajimeo refractory, the oxidation rate of the quotient ffi Niogeru heating element is luck tool, The material of the new electric iftllii fire and the nuclear dragon that the life of the β fruit heating element is prolonged. Following this 1¾ »« rack ¾ predicates Bae ¾ β
実 に用いた ¾熟体は， 材質は， Fe~Cr-Al系で Fe 71X， Cr» 23%, Al 6X よ り成る化学粗成のもので，鎵崔 1.5 Φ ,長ざ約 1.3麗のものも， 外萑 10^の Coil伏にしたものである β The material used for the maturation was a chemically crude Fe-Cr-Al system consisting of Fe 71X, Cr »23%, and Al 6X. thing also, it is obtained by the Coil facedown outside萑10 ^ β
«$ a«w火物 して ル ュ ム¾« 伏にレね所諝せラ ¾ ク 'プアィパーを主体とし， それに箱合材 *添加して， 2»成形レて,
Figure imgf000004_0001
比重約 0*6» 気孔率約 7SX, その基本化学 |g成は. A1203 «$ A« w ignited and rum ¾ 伏 と し と し と し と し と し と し と し と し 'と し と し と し と し''''とし'
Figure imgf000004_0001
A specific gravity of about 0 * 6 »porosity of about 7SX, the basic chemical |. G formed the A1 2 0 3
SlOa 40«3X. CaO 5*¾で， それに所 f 量の B2O3を添加レたものであも。 の電気 錄 火物に， ifJlOBi, S 15u， 長きほ上 ECoil全長より多少長 くして， Coilを収 し得る溝を構成レたもの ， Coil収納具とした。 に 供するに当たり， & 203として， 0X. 0.2% ¾ぴ 0·5Χも含有す *«に Cat BaOs *加えたもの ， 夫々 ん B及び C Coil ¾tt具と ¾；する；：とにすも。 SlOa 40 «3X. CaO 5 * ，, with f content of B2O3 added. The electric 火 refractory was made of ifJlOBi, S15u, a slightly longer than the long ECoil, with a groove that could accommodate the Coil. . Upon subjected to, and as 2 0 3, 0X 0.2% ¾ Pi 0 · 5Χ also plus Cat BAOS * to * «in containing, ¾ and respectively N B and C Coil ¾tt instrument; to;: and NISMO .
これ等の C U収 *5具に， 前述レ ϋθΠ状発熱 ffSJ 入レ， それ *25R中で 1300でに加熱レて， 加熱時 ΠΒ毎の Coil状発熱体の酸化 量を求め *モれを重 量百分率 (Coi 1状発煞体の初期重量の)で示せば， 第 1表に示す遁りの縮果 得たのである。  Into these CU packages * 5, add the above-mentioned ϋθ 発 熱 -shaped heating ffSJ, and then heat them to 1300 in 25R to determine the amount of oxidation of the coil-shaped heating element during each heating. In terms of the percentage by volume (of the initial weight of the coi germinator), the fructifications shown in Table 1 were obtained.
第  No.
加 熱 時  When heated
収納具 SO 100 150 200 250 350  Storage SO 100 150 200 250 350
時 ΠΒ 時 m 時 M mm  Hour ΠΒ hour m hour M mm
(X) {%) (%) (X) (X) (X  (X) (%) (%) (X) (X) (X
A 0.48 0.61 0.72 0.81 0.91 1.08  A 0.48 0.61 0.72 0.81 0.91 1.08
0.45 0*58 0.72 0.79 o.di 0.45 0 * 58 0.72 0.79 o.di
C 0.43 0,52 0.60 0.65 0.70 0.79 第 1表より明らかな橡に， Coil状発熱体の酸化增量は， Aが最大で Cが « 小であって， 350時 m後には， （： は Aの 70程度で， 時 Wの 41遇と共に， その 比が Sに坩大する俵向にあ こ 及び Bの酸化壌驚も A より少ないことと 併せて， それは Coi 1収納具中の BaOaの有 によることが明らかである。 C 0.43 0,52 0.60 0.65 0.70 0.79 Table 1 clearly shows that the amount of oxidation of the coil-shaped heating element is as follows: A is the largest and C is less than 350. After 350 h, (: is about 70 of A and 41 of W At the same time, it is clear that this ratio is due to the presence of BaOa in the Coi 1 container, together with the fact that the ratio is smaller for bales crucible to S and that the oxidation of B is less than that of A.
以上に ¾fiぺたことから， Pe« r-AUR 熱体 用いた電熱装置に， 含 有する電気絶《Κ火 ， 発熱体の支持及びその他の構造用耐火物とすれば， 発熱体の酸化速度も緩やかにレ， その寿命 長くレ得るごと《理解し得るの である。  From the above {fi}, if the electric heating device using the Pe «r-AUR heating element is made to include the electric insulation, the supporting of the heating element and other structural refractories, the oxidation rate of the heating element will be slow. The longer the life, the longer it is understood.
廣業上の利用の可能性 Possibility of use in global business
本発明によって提供 れる電熱珐置は工業的に利用されて効果 揮する ものである。  The electric heating device provided by the present invention is used industrially and exerts its effect.

Claims

鳙 求 の 鱔 闞 求 求 of request
B203 して O. JgU:の 9Stt壇^えば， CaO*Bs03. MgO'BsOs等) 含有すも «然装 S用 IS気铯緣新火物 B 2 0 3 to O. JgU:. 9Stt Dan ^ example, if the, CaO * Bs0 3 MgO'BsOs, etc.) to contain «ShikaSo S for IS care铯緣new fire products
PCT/JP1987/000528 1986-07-19 1987-07-20 Borate-containing insulating refractory for use in electric heater WO1988000576A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880700292A KR880701691A (en) 1986-07-19 1988-03-16 Electric insulation refractory material for heat transfer devices containing borate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61/170461 1986-07-19
JP61170461A JPH0612694B2 (en) 1986-07-19 1986-07-19 Electrically insulating refractory for electric heating device using Fe-Cr-Al heating element

Publications (1)

Publication Number Publication Date
WO1988000576A1 true WO1988000576A1 (en) 1988-01-28

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PCT/JP1987/000528 WO1988000576A1 (en) 1986-07-19 1987-07-20 Borate-containing insulating refractory for use in electric heater

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JP (1) JPH0612694B2 (en)
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WO (1) WO1988000576A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5506389A (en) * 1993-11-10 1996-04-09 Tokyo Electron Kabushiki Kaisha Thermal processing furnace and fabrication method thereof
JP5541305B2 (en) 2012-03-16 2014-07-09 第一精工株式会社 Connector terminal for press-fit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923807A (en) * 1972-06-28 1974-03-02
JPS5673665A (en) * 1979-11-14 1981-06-18 Ngk Spark Plug Co Low expansion high strength ceramic composition
JPS6021448B2 (en) * 1978-12-28 1985-05-28 松下電器産業株式会社 Electrical insulating material for burying metal heater wires and method for manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021448A (en) * 1983-07-15 1985-02-02 Mitsubishi Heavy Ind Ltd Ultrasonic wave inspection apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923807A (en) * 1972-06-28 1974-03-02
JPS6021448B2 (en) * 1978-12-28 1985-05-28 松下電器産業株式会社 Electrical insulating material for burying metal heater wires and method for manufacturing the same
JPS5673665A (en) * 1979-11-14 1981-06-18 Ngk Spark Plug Co Low expansion high strength ceramic composition

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Publication number Publication date
KR880701691A (en) 1988-11-04
JPH0612694B2 (en) 1994-02-16
JPS6326985A (en) 1988-02-04

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