TW201641469A - 碳化矽質耐火塊 - Google Patents

碳化矽質耐火塊 Download PDF

Info

Publication number
TW201641469A
TW201641469A TW105106433A TW105106433A TW201641469A TW 201641469 A TW201641469 A TW 201641469A TW 105106433 A TW105106433 A TW 105106433A TW 105106433 A TW105106433 A TW 105106433A TW 201641469 A TW201641469 A TW 201641469A
Authority
TW
Taiwan
Prior art keywords
block
refractory
refractory block
fired
carbonized
Prior art date
Application number
TW105106433A
Other languages
English (en)
Other versions
TWI597255B (zh
Inventor
Kenji Yanagi
Original Assignee
Tyk Corp
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 Tyk Corp filed Critical Tyk Corp
Publication of TW201641469A publication Critical patent/TW201641469A/zh
Application granted granted Critical
Publication of TWI597255B publication Critical patent/TWI597255B/zh

Links

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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/565—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 carbides or oxycarbides based on silicon carbide
    • 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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5035—Silica
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6027—Slip casting
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/604—Pressing at temperatures other than sintering temperatures
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6583—Oxygen containing atmosphere, e.g. with changing oxygen pressures
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9684—Oxidation resistance
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/54—Oxidising the surface before joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/8305—Miscellaneous [e.g., treated surfaces, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

本發明課題為提供一種耐蝕性提高的碳化矽質耐火塊。 解決課題的手段為一種耐火塊，其係具有：由具有既定形狀的碳化矽質耐火物所構成之耐火性塊本體1；以及將該塊本體1的外表面部分在氧氣環境下加熱，使至少一部分的碳化矽氧化而形成為氧化矽的燒成被膜層2。燒成被膜層2以氧化矽的形式燒結，耐蝕性會提高。

Description

碳化矽質耐火塊
本發明關於一種碳化矽質耐火塊。
一直以來，碳化矽質耐火塊被廣泛利用在各種產業用途，尤其是高爐等的工業用爐材。這些耐火塊會預先成形為既定形狀，因此具有能夠以零件的方式搬運、或將塊體彼此積層而製成較大的構造物之優點。關於碳化矽質耐火塊的耐久性，從耐熔損性(耐浸蝕性)、耐剝落性(耐熱衝撃性)或耐潮解性等的觀點來考量，已有各種改良。例如，專利文獻1揭示了一種可鑄性耐火物，其係藉由將燒成而形成了耐氧化被膜的氮化矽鍵結SiC耐火物粉碎，並將所得到的粉碎顆粒製成SiC原料，而具備了耐剝落性。
[先前技術文獻] [專利文獻]
[專利文獻1]日本特開2010-275120號公報
目前產業上正需要較容易使用或高耐久性等 之更良好的耐火塊。
本發明人發現藉由將碳化矽質耐火塊在氧化性環境下加熱，可獲得利用表面部分的層來提高耐蝕性的耐火塊，而完成了本發明。
本發明之碳化矽質耐火塊，其特徵為，具有：由具有既定形狀的碳化矽質耐火物所構成之耐火性塊本體；以及將該塊本體的外表面部分在氧化性環境下加熱，使至少一部分的碳化矽氧化而形成為氧化矽的燒成被膜層。
本發明之碳化矽質耐火塊是由塊本體與燒成被膜層所構成。碳化矽質耐火塊可因應使用目的而具有既定形狀。例如，以模框成形的耐火塊會具有既定形狀。此外，將剖面為一定的長尺狀物體以既定間隔切斷而成的耐火塊，也會具有既定形狀。塊本體為碳化矽質耐火物。此處，廣義地來說，碳化矽質包括了碳化矽。燒成被膜層是碳化矽氧化燒成而形成，因此若燒成前的塊本體所含有的碳化矽少，則難以形成燒成被膜層。所以，在將耐火塊的總成分定為100重量%(以下，%意指重量%)時，碳化矽質宜為含有5%以上的碳化矽的物體。甚至，較佳為含有50%以上的碳化矽。
塊本體所含有的碳化矽以外的成分，可列舉矽、鋁、鈣等的氧化物、碳化物等。另外還可含有金屬矽等的金屬。這些碳化矽以外的成分及摻合比例可因應用途來運用。此外，各成分為顆粒或粒狀。可因應用途 適當地選擇粒度及粒度分布。
塊本體的種類可為使鑄料流進模具中而成形的既定形狀可鑄性塊、在模具內按壓成形所製成的既定形狀按壓成形塊、將既定形狀的成形體燒成而得的燒成塊之任一者。此處，可鑄性塊亦被稱為預鑄塊，並且是將顆粒、粒狀耐火物等以水等製成泥漿狀，使其流進模具內並且固化成既定形狀而成的物體。按壓成形塊是將粉末、顆粒、粒狀耐火物在模具內按壓使其緻密化而成的物體。通常，與可鑄性塊相比，按壓成形塊是呈填充的狀態，氣孔率較低。燒成塊是將可鑄性塊或按壓成形塊等的成形而得到的塊體加熱，使其燒結而成的塊體。
碳化矽質耐火物的碳化矽會與氧發生反應而成為氧化矽，因此通常是在非氧化性環境中燒結。另外，為了促進燒結，也有使用金屬矽或金屬氧化物等的燒結助劑的情形。
本發明之燒成被膜層，是將由具有既定形狀的碳化矽質耐火物所構成之耐火性塊本體的表面部分在氧的存在下燒成，使表面部分所含有的碳化矽成分氧化而形成為氧化矽，以進行表面部分的燒結。
燒成被膜層的厚度係以定在0.5mm以上為佳。
在耐火塊本體上形成燒成被膜層的情況下，原本的耐火塊本體的機械強度愈低，形成燒成被膜層所產生的耐蝕性提升的效果愈高。所以，與氣孔率低的按壓成形塊相比，在氣孔率高的可鑄性塊上形成燒成被膜層較為有效。但是，即使在按壓成形塊上形成燒成被膜層，也 會有耐蝕性提升的效果。此外，將可鑄性塊或按壓成形塊在非氧氣體環境下燒成，並將所得的燒成塊進一步在氧氣體環境下燒成而形成燒成被膜層也是有效的。
本發明之碳化矽質耐火塊，與不具有燒成被膜層而且相同的組成的碳化矽質耐火塊相比，在以鑄料將塊彼此接合的情況下，親和性較良好，耐蝕性提高。此外，本發明的碳化矽質耐火塊，對於高爐渣的耐熔損性及耐剝落性高。因此，具有作為高爐熔鋼用耐火塊的高耐久性。
1‧‧‧塊本體
2‧‧‧燒成被膜層
第1圖為本發明實施例之燒成可鑄性耐火塊的一部分的放大剖面圖。
第2圖表示本發明實施例之燒成可鑄性耐火塊的一部分剖面的矽分布之矽元素分析圖。
第3圖表示與第2圖相同部分剖面的氧分布之氧元素分析圖。
以下，揭示本發明的合適的實施形態。
將本發明之燒成可鑄性耐火塊的一部分的放大剖面圖表示於第1圖。此燒成可鑄性耐火塊是由具有500mm×500mm×300mm的形狀，由碳化矽質耐火物所構成之耐火性塊本體1，以及將該塊本體1的外表面部分在氧氣環境中加熱，使至少一部分的碳化矽氧化而形成為氧化矽的 燒成被膜層2所構成。
此燒成可鑄性耐火塊可藉由以下方法獲得。首先，調製出以Al2O3為3%、SiO2為4%、SiC為86%的化學成分比率(重量%)而含有的碳化矽質鑄料。使用該碳化矽質鑄料，成形為500mm×500mm×300mm的可鑄性耐火塊，然後，在110℃下乾燥24小時，製成可鑄性耐火塊。將該可鑄性耐火塊在大氣中以1400℃以上的高溫加熱數小時，在表面形成約1mm的燒成被膜層2，製成本實施形態的燒成可鑄性耐火塊。
將該燒成可鑄性耐火塊切斷，調查含有燒成被膜層2的塊本體1一部分剖面的矽及氧的元素分布。將矽分布圖表示於第2圖，氧分布圖表示於第3圖。另外，在第2圖及第3圖中，燒成被膜層2的表面邊界以及與塊本體1的交界皆劃上粗黑線。所以，第2圖及第3圖之中，左右延伸的2條黑線之間為燒成被膜層2，下面的一條黑線的下方部分對應於塊本體1的部分。由第3圖可知，氧存在的部分呈黑色，燒成被膜層2的部分比塊本體1的部分還黑，代表氧比較多。此外還可知，第2圖的燒成被膜層2的黑色部分表示矽較多，因此燒成被膜層1的黑色部分為氧化矽。另外還可看出第2圖的白色部分為空隙。
此燒成可鑄性耐火塊的氣孔率為10.1%、總體比重為2.63%。另外，燒成可鑄性耐火塊的壓縮強度(強度)為81MPa、彎曲強度為39MPa。熔損測試是使用在高爐渣(鹼度C/S=1.0)中添加軋鋼鱗片(mill scale)10%的物體，根據感應爐DIP法，在測試溫度1500~1550℃、熔損 時間6小時的條件下進行。在熔損測試之中，爐渣線(SL)部的熔損深度為1.7mm。耐剝落性測試是依據感應爐DIP法，在測試溫度1450~1550℃、1循環的浸漬時間15分鐘、空氣冷卻時間15分鐘的條件下進行。在耐剝落性測試之中，至破裂造成脫落為止的循環數為7次。
為了進行比較，針對並未形成燒成被膜層的可鑄性耐火塊進行同樣的測試。並未形成燒成被膜層的可鑄性耐火塊的氣孔率為14.8%、總體比重為2.42%。另外，並未形成燒成被膜層的可鑄性耐火塊的壓縮強度為12MPa、彎曲強度為3MPa。在熔損測試之中，SL部的熔損深度為5.1mm。在耐剝落性測試之中，至破裂造成脫落為止的循環數為7次。
本發明之碳化矽質耐火塊，尤其是燒成可鑄性耐火塊，其壓縮強度為81MPa、彎曲強度為39MP，與通常的可鑄性耐火塊的壓縮強度為12MPa、彎曲強度為3MPa相比，極高。關於耐熔損性，熔損深度從5.1mm大幅減少至1.7mm。另外，能夠維持住耐剝落性。
像這樣，本發明之碳化矽質耐火塊，藉由表面部分的層提高了作為耐火塊的耐蝕性。
1‧‧‧塊本體
2‧‧‧燒成被膜層

Claims (3)

  1. 一種碳化矽質耐火塊，其特徵為，具有：由具有既定形狀的碳化矽質耐火物所構成之耐火性塊本體；以及將該塊本體的外表面部分加熱，使至少一部分的碳化矽氧化而形成為氧化矽的燒成被膜層。
  2. 如請求項1之碳化矽質耐火塊，其中前述塊本體為使鑄料流進模具中而成形的既定形狀可鑄性塊、在模具內按壓成形所製成的既定形狀按壓成形塊、將既定形狀的成形體燒成而得的燒成塊之任一者。
  3. 如請求項1或2之碳化矽質耐火塊，其中前述碳化矽質耐火物，在將全體定為100重量%時，碳化矽為5%以上。
TW105106433A 2015-03-04 2016-03-03 Silicon carbide refractory block TWI597255B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015042455A JP6415356B2 (ja) 2015-03-04 2015-03-04 鉄溶湯用炭化珪素質耐火ブロックおよびその製造方法

Publications (2)

Publication Number Publication Date
TW201641469A true TW201641469A (zh) 2016-12-01
TWI597255B TWI597255B (zh) 2017-09-01

Family

ID=55637156

Family Applications (1)

Application Number Title Priority Date Filing Date
TW105106433A TWI597255B (zh) 2015-03-04 2016-03-03 Silicon carbide refractory block

Country Status (4)

Country Link
US (2) US20160257619A1 (zh)
EP (1) EP3064482B1 (zh)
JP (1) JP6415356B2 (zh)
TW (1) TWI597255B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110054498B (zh) * 2019-02-22 2022-01-28 辽宁中弘信冶金技术有限公司 炉窑用预制砌块及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63215566A (ja) * 1987-03-03 1988-09-08 株式会社豊田中央研究所 セラミツクス複合材料
JP3027215B2 (ja) * 1991-03-18 2000-03-27 日本碍子株式会社 窒化珪素結合ＳｉＣ耐火物
JPH07315933A (ja) * 1994-05-18 1995-12-05 Riken Corp ＳｉＣ質耐火物及びその製造方法
JPH0857611A (ja) * 1994-08-25 1996-03-05 Akechi Ceramics Kk 連続鋳造用ノズル
JPH08188488A (ja) * 1995-01-11 1996-07-23 Tokai Konetsu Kogyo Co Ltd 耐火物用コーティング材およびそのコーティング方法
DE19928173A1 (de) * 1999-06-19 2000-12-21 Fraunhofer Ges Forschung Beschichtung zur Verminderung der Erosion an thermisch hochbelasteten Oberflächen aus faserverstärkter Keramik und Verfahren zu deren Herstellung
JP2001328885A (ja) * 2000-05-18 2001-11-27 Nichias Corp 焼却炉用耐火物及びその作製方法
US6506254B1 (en) * 2000-06-30 2003-01-14 Lam Research Corporation Semiconductor processing equipment having improved particle performance
US7244965B2 (en) * 2002-09-04 2007-07-17 Cree Inc, Power surface mount light emitting die package
JP4376579B2 (ja) * 2003-09-09 2009-12-02 日本碍子株式会社 窒化珪素結合ＳｉＣ耐火物及びその製造方法
JPWO2007015550A1 (ja) * 2005-08-03 2009-02-19 イビデン株式会社 炭化珪素質焼成用治具及び多孔質炭化珪素体の製造方法
JP5065660B2 (ja) * 2005-12-02 2012-11-07 ローム・アンド・ハース・エレクトロニック・マテリアルズ，エル．エル．シー． 半導体処理
JP2007287992A (ja) * 2006-04-18 2007-11-01 Fuji Electric Holdings Co Ltd 炭化珪素半導体装置およびその製造方法
JP2009029692A (ja) * 2007-06-28 2009-02-12 Covalent Materials Corp 焼成用道具材およびその製造方法
US20100275120A1 (en) * 2009-04-22 2010-10-28 Nicholas Pappas Processing of fields in motion picture videos or still photos
JP5126984B2 (ja) * 2009-05-26 2013-01-23 日本碍子株式会社 ＳｉＣ含有キャスタブル耐火物の製造方法
JP5990572B2 (ja) * 2012-03-29 2016-09-14 イビデン株式会社 ハニカム構造体、排ガス浄化用ハニカムフィルタ及び排ガス浄化装置

Also Published As

Publication number Publication date
EP3064482B1 (en) 2022-06-15
JP2016160158A (ja) 2016-09-05
US20190202743A1 (en) 2019-07-04
TWI597255B (zh) 2017-09-01
US20160257619A1 (en) 2016-09-08
EP3064482A1 (en) 2016-09-07
JP6415356B2 (ja) 2018-10-31

Similar Documents

Publication Publication Date Title
CN103332940A (zh) 铜熔炼炉用半再结合镁铬砖及其制备方法
CN107266100A (zh) 一种采用镁钙砖细粉制备的MgO‑CaO‑Fe2O3系电炉捣打料
TWI597255B (zh) Silicon carbide refractory block
JP6527443B2 (ja) 廃棄物溶融炉用ジルコニア質プレキャスト耐火物の製造方法
JP6959809B2 (ja) 流し込み施工用の不定形耐火物
JP6420748B2 (ja) 溶融金属を保持する容器のライニングに用いる不焼成炭化珪素含有ハイアルミナ質れんが
JP7247172B2 (ja) 耐火性バッチ、当該バッチから不定形耐火セラミック製品を製造するための方法、当該方法によって得られる不定形耐火セラミック製品
CN108863408A (zh) 一种ZrN-SiAlON-SiC-C复相耐火材料的制备方法
JP2012192430A (ja) アルミナ−カーボン質スライドゲートプレート
JP7032084B2 (ja) 不定形耐火物
KR20220141290A (ko) 소결된 내화 제품의 제조를 위한 입자, 소결된 내화 제품의 제조를 위한 배치, 소결된 내화 제품의 제조를 위한 공정 및 소결된 내화 제품
WO2013183091A1 (ja) 不焼成れんが
JP2022060911A (ja) Ｌｆ鍋用マグカーボンれんがの製造方法
JP2009242122A (ja) 高炉炉床用れんが及びこれをライニングした高炉炉床
JP2016160158A5 (ja) 炭化珪素質耐火ブロックおよびその製造方法
KR930009349B1 (ko) 내구성이 우수한 MgO-C질 내화벽돌
JP6098834B2 (ja) 溶融アルミニウム合金用不定形耐火物
JP5594406B2 (ja) 不定形耐火物の施工方法
JP4704263B2 (ja) 不定形耐火物成形材料及び不定形耐火物成形体
RU2570176C1 (ru) Состав для изготовления периклазошпинелидных огнеупоров
JP2005335966A (ja) 黒鉛含有キャスタブル耐火物
JP3177200B2 (ja) 低通気性マグネシア−クロム質耐火物の製造方法
RU2574236C2 (ru) Плавленый огнеупорный материал
JPH0688827B2 (ja) 耐火物
JPH0510299B2 (zh)