KR20000055447A - method for forming canbon brick with fire resistance and corrosion resestance - Google Patents

method for forming canbon brick with fire resistance and corrosion resestance Download PDF

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KR20000055447A
KR20000055447A KR1019990004069A KR19990004069A KR20000055447A KR 20000055447 A KR20000055447 A KR 20000055447A KR 1019990004069 A KR1019990004069 A KR 1019990004069A KR 19990004069 A KR19990004069 A KR 19990004069A KR 20000055447 A KR20000055447 A KR 20000055447A
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carbon
graphite
brick
weight percent
particle
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KR100310050B1 (en
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정해룡
범진형
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한종웅
조선내화 주식회사
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    • 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
    • C04B35/52—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 carbon, e.g. graphite
    • C04B35/522—Graphite
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • 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
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
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Abstract

PURPOSE: A method of manufacturing fireproof and corrosionproof carbon brick is provided to obtain a carbon brick having excellent acid proof property and intensity. Highly purified graphite material and metallic silicon and thermosetting resin are used as starting materials. And treated at below the temperature existing, therefore profitable at energy economy. By simplifying manufacturing process, reduced at manufacturing cost. CONSTITUTION: A method is processed to obtain fireproof and corrosionproof brick by calcining at 1,200-1,700°C for 3-72 hours at reducing atmosphere after molding, by means of mixing graphitized carbonic material 30-95 weight percent, metallic silicon 2-25 weight percent, at least one of amorphous carbon, crystalline flake graphite or graphite, metal oxide 2-20 weight percent and thermosetting resin 3-15 weight percent. During roasting, carbon the main material reacts with metallic silicon to form beta silicon carbide and nitride silicone, followed by crystallization with particle to particle. And carbon monoxide reacts with metallic silicon to form beta silicon carbide intensify binding intensity. And silicon carbide whisker or fiber unites a large graphite particle with a small graphite particle.

Description

내화성 및 내식성 카본 벽돌의 제조방법{method for forming canbon brick with fire resistance and corrosion resestance}Method for forming fire and corrosion resistant carbon bricks {method for forming canbon brick with fire resistance and corrosion resestance}

본 발명은 카본 벽돌에 관한 것으로서, 보다 상세하게는 흑연화된 원료와 금속규소 등의 원료로 하여 낮은 온도에서 열처리함으로서, 불순물의 함량이 낮고 기존의 카본 벽돌에 비해 내산성 및 강도특성이 우수하며 제조공정의 간단화 및 고온에서의 흑연화 공정의 생략으로 제조원가를 절감하는데 적합한 카본 벽돌의 제조방법에 관한 것이다.The present invention relates to a carbon brick, and more particularly, by heat treatment at a low temperature with a raw material such as graphitized raw material and metal silicon, low impurities content and excellent acid resistance and strength characteristics compared to conventional carbon bricks The present invention relates to a method for producing a carbon brick suitable for reducing manufacturing costs by simplifying the process and eliminating the graphitization process at a high temperature.

카본 벽돌은 내산성, 내부식성, 열전도율 등이 우수하여 각종 화학공장의 내산탱크, 고로노저(高爐爐底) 내화물, 철강 및 비철 등의 유도로(誘導爐)용 내화물, 비철금속 제련공장의 귀금속 회수목적의 굴뚝 등 그 사용용도가 다양하다.Carbon brick has excellent acid resistance, corrosion resistance, and thermal conductivity, so it is possible to recover acid tanks of various chemical plants, blast furnace refractory materials, induction furnaces for steel and non-ferrous metals, and precious metals in nonferrous metal smelting plants. Its use is diverse, such as chimneys.

카본 벽돌의 제조방법은 여러 종류가 있으나, 통상적으로는 출발원료로 침상 코크스(Needle Cokes)나 저온 열처리 코크스 등 흑연이 아닌 비결정상의 카본을 주성분으로 하여 열가소성수지(예: 피치타르)를 열간 혼련하고, 열간 성형한 후 1,500-3,000℃ 정도의 흑연 화로에서 전기통전 방식으로 가열하여 비결정상의 카본을 흑연화시켜 제조하고 있다.There are many methods for producing carbon bricks. Generally, starting materials are hot kneaded thermoplastics (eg, pitch tar) based on amorphous carbon, such as needle cokes or low temperature heat treated cokes, as non-graphite carbon. After the hot forming, the graphite is heated in an electric furnace at about 1,500 to 3,000 ° C. to form amorphous carbon.

이와 같은 종래의 방법은 열가소성수지를 20% 이상 사용하여 열간에서 혼련 및 통전가열에 2-4일, 냉간에 1-2주간을 하는 등 제조공정이 길고 복잡하는 등 제조경비가 높다는 단점을 가지고 있으며, 특히 화학공정 등의 내산탱크에 사용되는 카본 함량이 92% 가량인 카본 벽돌의 경우는 출발원료로 저급 침상 코크스나 저온 열처리 코크스 사용으로 불순물의 함량이 높고, 1,600℃ 이하의 열처리시에는 흑연화 정도가 낮기 때문에 강도 보강 목적으로 점토 등을 사용하여 사용되는 산 종류에 따라 장시간 사용시 취약해질 가능성이 높다.Such a conventional method has a disadvantage in that the manufacturing cost is high, such as the use of 20% or more of thermoplastic resin for 2-4 days for hot kneading and energizing heating and 1-2 weeks for cold, such as a long and complicated manufacturing process. In particular, carbon bricks containing about 92% of carbon used in acid tanks, such as chemical processes, have high impurity content by using low needle coke or low temperature heat-treated coke as starting materials, and graphitization during heat treatment below 1,600 ℃. Because of the low level, it is highly likely to be vulnerable when used for a long time depending on the type of acid used for the purpose of strength reinforcement.

본 발명은 상기한 종래의 문제점을 해결하기 위한 것으로, 출발원료로 고순도 흑연화된 원료와 금속규소 및 열경화성수지를 사용하여 기존에 비해 낮은 온도에서 열처리하므로써 에너지절약 측면에서 유리하고, 성형시 냉간에서 가능하는 등 제조공정의 단순화로 제조원가의 절감효과를 갖음과 함께 우수한 내산성 및 강도특성을 갖는 카본 벽돌을 얻고자 하는데 그 목적이 있다.The present invention is to solve the above-mentioned problems, it is advantageous in terms of energy saving by heat treatment at a lower temperature than conventional using a high-purity graphitized raw material and metal silicon and thermosetting resin as starting materials, in the cold forming The purpose of the present invention is to obtain a carbon brick having excellent acid resistance and strength characteristics as well as a reduction in manufacturing cost by simplifying the manufacturing process.

상기한 목적을 달성하기 위한 본 발명은 흑연화된 카본 원료 30-95 중량부, 금속규소(Si) 2-25 중량부, 비정질카본, 인상흑연 또는 전연흑연, 금속산화물 중 적어도 1종 이상 2-20 중량부, 열경화성수지 3-15 중량부 혼련하여 성형한 후 환원성 분위기에서 1,200-1,700℃ 온도로 3-72시간 소성하여서 됨을 특징으로 하는 내화성 및 내식성 카본 벽돌의 제조방법으로 이루어 진다.The present invention for achieving the above object is at least one or more of 30-95 parts by weight of graphitized carbon raw material, 2-25 parts by weight of metal silicon (Si), amorphous carbon, impression graphite or all graphite, metal oxide 2- 20 parts by weight, thermosetting resin 3-15 parts by weight kneading and molding, and then fired for 3 to 72 hours at a temperature of 1,200-1,700 ℃ in a reducing atmosphere is made of a method of producing a fire-resistant and corrosion-resistant carbon brick.

본 발명은 소성중에 주원료인 카본과 금속규소가 반응하여 입자와 입자사이에서 베타 탄화규소 및 산질화규소를 생성시켜 입자와 입자가 결정되며, 소성 분위기내 일산화탄소(CO)와 금속규소가 반응하여 베타 탄화규소를 생성한다.In the present invention, carbon and metal silicon, which are the main raw materials, are reacted during firing to produce beta silicon carbide and silicon oxynitride between the particles and the particles to determine the particles and particles, and carbon monoxide (CO) and metal silicon in the firing atmosphere react with beta carbonization. To produce silicon.

이렇게 생성된 베타형 탄화규소는 카본 벽돌의 기공내에 휘스커나 파이버상으로 잘 발달되어 결합강도를 더욱 강화시킨다.The beta-type silicon carbide thus produced is well developed in whiskers or fibers in the pores of the carbon brick to further strengthen the bond strength.

즉, 탄화규소 휘스커나 파이버 등이 소성과정에서 생성되어 흑연 큰 입자와 작은 입자를 더욱 강하게 결합시킨다.That is, silicon carbide whiskers or fibers are produced during the firing process to bond the graphite large particles and small particles more strongly.

따라서 흑연화 공정을 거치는 기존의 방법에 의해 제조된 제품들 보다 제조공정이 단순하면서 제조경비가 저렴한 방법으로 우수한 특성의 카본 벽돌을 제조할 수 있었다.Therefore, carbon bricks having superior characteristics could be manufactured by a simpler manufacturing process and a lower manufacturing cost than products manufactured by the conventional method through the graphitization process.

본 발명에서는 소성온도를 대폭 낮추었는데 그 원인은 기존 방법에서는 비결정질 카본 원료인 침상 코크스 등을 사용하여 판상의 적층구조인 흑연화가 1,500℃ 이상에서 시작되고 2,000℃ 이상에서 비로서 위와 같은 흑연화 결정 구조를 갖게 되는데, 본 발명의 제조방법은 출발원료 자체가 위의 흑연화 결정 구조를 갖고 있기 때문에 별도의 흑연화 공정이 필요없고 첨가된 금속규소가 소성중에 베타 탄화규소와 산질화규소를 생성하여 흑연화 결정 구조를 가진 입자와 입자의 결합을 이루어 기존의 흑연화된 카본 벽돌보다 우수한 강도특성을 나타낸 것이다.In the present invention, the firing temperature is significantly lowered. The reason for this is that in the conventional method, graphitization, which is a plate-like lamination structure using needle-like coke, which is an amorphous carbon raw material, starts at 1,500 ° C or higher, and at 2,000 ° C or higher, such graphitized crystal structure In the production method of the present invention, since the starting material itself has the above graphitized crystal structure, a separate graphitization step is not necessary and the added metal silicon is graphitized by producing beta silicon carbide and silicon oxynitride during firing. Combination of particles and particles with a crystal structure showed superior strength characteristics than conventional graphitized carbon bricks.

다음은 실시예에 따라 설명한다.The following is described according to the embodiment.

(실시예 1)(Example 1)

원료 배합비, 흑연화 원료 90%, 금속규소 5%, 인상흑연 5%Raw material blending ratio, graphitized raw material 90%, metal silicon 5%, impression graphite 5%

결합재 1-10% 외 첨가(상기 전체에 대한 중량비)Addition of 1-10% of binder (weight ratio with respect to the whole)

입도분포, 금속규소 : 10㎛Particle Size Distribution, Metal Silicon: 10㎛

전체 입도분포 : 1㎜ 이상 35%, 1-0.212㎜ 30%, 0,212㎜ 이하 35%Total particle size distribution: 1mm or more 35%, 1-0.212mm 30%, 0,212mm or less 35%

소성조건, 온도 : 1,500℃Firing condition, temperature: 1,500 ℃

시간 : 10시간Time: 10 hours

상기 조건은 (표 1)의 시료(다)를 나타낸 것으로, 상기 원료를 배합하고 혼합기에서 무가압 혼련한 후 혼합 배토를 상온에서 24시간 숙성한다.The above conditions are shown in the sample (C) of (Table 1), and the raw materials are blended and kneaded in a mixer without pressure, and the mixed clay is aged at room temperature for 24 hours.

상기 숙성된 혼합 배토를 평량한 후 한국 공업 규격에 표시된 형태와 이형으로 성형하여 상온에서 하루정도의 자연건조를 행한다.After the maturation of the mixed mixed clay is molded into the shape and mold release indicated in the Korean Industrial Standards, the natural drying is performed at room temperature for about one day.

자연 건조된 성형체를 100-200℃에서 24시간 동안 건조를 행한다.The naturally dried molded body is dried at 100-200 ° C. for 24 hours.

건조된 성형체를 1,500℃에서 10시간 소성한다.The dried molded body is calcined at 1,500 ° C for 10 hours.

소성 킬른은 단가마와 텐널킬른 모두 가능하며, 턴넬킬른에서 소성할 경우 대량생산이 기능하게 되어 생산성 향상과 품질 균일화 측면에서 큰 효과를 나타낸다.Firing kilns are available in both kilns and tennel kilns, and when fired in tunnel kilns, mass production functions, resulting in greater productivity and quality uniformity.

상기와 같은 조건에 따라 나타난 물리적 성질은 기공율 18%, 흡수율 9.5%, 곡강도 220㎏/㎠, 압축강도 300㎏/㎠에 비하여 우수함을 알 수 있었다.The physical properties shown by the above conditions were found to be superior to the porosity of 18%, the absorption rate of 9.5%, bending strength 220㎏ / ㎠, compressive strength 300kg / ㎠.

(실시예 2)(Example 2)

원료 배합비, 흑연화 원료 80%, 인상흑연 10%, 금속규소 10%Raw material blending ratio, Graphitized raw material 80%, Impression graphite 10%, Metal silicon 10%

결합재 1-10% 외 첨가(상기 전체에 대한 중량비)Addition of 1-10% of binder (weight ratio with respect to the whole)

입도분포, 금속규소 : 10㎛Particle Size Distribution, Metal Silicon: 10㎛

전체 입도분포 : 1㎜ 이상 35%, 1-0.212㎜ 25%, 0,212㎜ 이하 40%Total particle size distribution: 1mm or more 35%, 1-0.212mm 25%, 0,212mm or less 40%

소성조건, 온도 : 1,500℃Firing condition, temperature: 1,500 ℃

시간 : 10시간Time: 10 hours

상기 조건은 (표1)의 시료(아)를 나타낸 것으로 그외 조건은 실시예 1과 동일하게 하였다.The said conditions showed the sample (a) of (Table 1), and other conditions were made the same as Example 1.

상기와 같은 조건에 따라 나타난 물리적 성질은 기공율 17%, 흡수율 9%, 곡강도 180㎏/㎠, 압축강도 350㎏/㎠ 로서 기존 기술에 비해 우수하게 나타났다.The physical properties shown by the above conditions were porosity 17%, absorption 9%, bending strength 180㎏ / ㎠, compressive strength 350㎏ / ㎠ showed better than the existing technology.

(표 1)Table 1

구 분division 가end 나I 다All 라la 마hemp 바bar 사four 아Ah 자character 차car 카Ka 타Ta 파wave 하Ha 흑연화 원료Graphitization Raw Material 9898 9595 9090 8585 8585 8383 8383 8080 8080 8080 6565 6565 5555 5555 금속규소Metal silicon 22 33 55 55 77 77 1010 1010 1313 1515 1515 2020 2020 2525 인상흑연Impression 00 22 55 1010 88 1010 77 1010 77 55 2020 1515 2525 2020 결합제(외 첨가)Binder (external addition) 1-10%1-10% 소성온도(℃)Firing temperature (℃) 1,200-1,600℃1,200-1,600 ℃ 소성시간(H)Firing time (H) 3-723-72

상기 실시예 1,2(시료 : 다, 아)를 비롯한 (표 1)에 나타낸 다른 실시예(시료 : 가-나, 라-사, 차-하)에 따른 조건을 실시한 바, (표 2)와 같은 결과가 나타났다.The conditions according to the other examples shown in Table 1, including Examples 1 and 2 (Samples: c, a), were carried out. (Table 2) The same result was obtained.

이상에서와 같이 본 발명은 기존의 기술과 다른 방법으로 카본 벽돌을 제조하여 우수한 특성의 제품을 얻을 수 있다.As described above, the present invention can obtain a product having excellent properties by producing carbon bricks by a method different from the existing technology.

본 발명은 기존의 방법보다 제조공정이 단순하고 상기 제조공정시 기존의 방법보다 고온을 필요로 하지 않기 때문에 에너지 절약적인 측면에서도 유리한 방법이라고 생각된다.The present invention is considered to be an advantageous method in terms of energy saving since the manufacturing process is simpler than the existing method and does not require a higher temperature than the existing method in the manufacturing process.

또한, 혼련이나 성형 건조 공정에서 열경화성수지를 사용하므로서 혼련 성형공정을 일반적으로 내화벽돌의 혼련 성형과 같이 냉간에서 가능하게 하였고, 건조공정도 기존 방법인 열경화성수지를 사용하여 장시간 건조하는 것을 대폭적으로 줄일 수 있었다.In addition, by using the thermosetting resin in the kneading or molding drying process, the kneading molding process is generally possible in the cold like kneading molding of the refractory brick, and the drying process is drastically reduced for a long time by using the conventional thermosetting resin. Could.

(표 2)Table 2

구 분division 가end 나I 다All 라la 마hemp 바bar 사four 아Ah 자character 차car 카Ka 타Ta 파wave 하Ha 부피비중Volume specific gravity 1.721.72 1.721.72 1.721.72 1.711.71 1.731.73 1.731.73 1.721.72 1.731.73 1.751.75 1.781.78 1.801.80 1.811.81 1.851.85 1.871.87 기공율 (%)Porosity (%) 18.218.2 18.818.8 1818 1919 19.519.5 2020 1919 1717 2121 20.520.5 2020 22.322.3 2222 2323 흡수율 (%)Absorption rate (%) 9.79.7 1010 9.59.5 1010 10.510.5 1111 9.89.8 99 10.510.5 1111 10.810.8 1111 1111 1212 곡강도 (㎏/㎠)Bending strength (㎏ / ㎠) 158158 179179 220220 154154 178178 179179 196196 211211 191191 175175 165165 151151 130130 141141 압축강도 (㎏/㎠)Compressive strength (㎏ / ㎠) 245245 315315 443443 293293 346346 295295 320320 415415 382382 380380 376376 380380 392392 311311

이상에서와 같이 본 발명은 기존 방법과는 다르게 흑연화된 카본 원료와 금속규소를 첨가하고 열경화수지로 혼련, 성형후 환원성 분위기에서 저온으로 조성함으로서 공정의 간단화 및 에너지 절감으로 생산원가를 절감함과 함께 우수한 내산성 및 강도특성을 갖는 카본 벽돌을 얻게 된다.As described above, the present invention, unlike the conventional method, by adding the graphitized carbon raw material and metal silicon, kneading with a thermosetting resin, and forming at a low temperature in a reducing atmosphere after molding, reducing production costs by simplifying the process and saving energy In addition, a carbon brick having excellent acid resistance and strength characteristics is obtained.

Claims (1)

흑연화된 카본 원료 30-95 중량부, 금속규소(Si) 2-25 중량부, 비정질카본, 인상흑연 또는 전연흑연, 금속산화물 중 적어도 1종 이상 2-20 중량부, 열경화성수지 3-15 중량부 혼련하여 성형한 후 환원성 분위기에서 1,200-1,700℃ 온도로 3-72시간 소성하여서 됨을 특징으로 하는 내화성 및 내식성 카본 벽돌의 제조방법.30-95 parts by weight of graphitized carbon raw material, 2-25 parts by weight of metallic silicon (Si), at least one or more 2-20 parts by weight of amorphous carbon, impression graphite or all graphite, metal oxide, 3-15 parts by weight of thermosetting resin Method for producing a fire-resistant and corrosion-resistant carbon brick, characterized in that by firing by kneading and molding for 3 to 72 hours at a temperature of 1,200-1,700 ℃ in a reducing atmosphere.
KR1019990004069A 1999-02-06 1999-02-06 method for forming canbon brick with fire resistance and corrosion resestance KR100310050B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471356B1 (en) * 2001-07-06 2005-03-08 조선내화 주식회사 carbon for refractories & refractories with carbon
KR101392720B1 (en) * 2013-03-21 2014-05-14 (주)포스코켐텍 Composition for high-temperature adhesive the refractory brick having execellent bonding strength
CN116656022A (en) * 2023-05-30 2023-08-29 荣成荣鹰橡胶制品有限公司 Solid tire tread rubber and preparation method thereof

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* Cited by examiner, † Cited by third party
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JPH03205362A (en) * 1989-12-28 1991-09-06 Kawasaki Refract Co Ltd Graphite-silicon carbide refractory brick and production thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471356B1 (en) * 2001-07-06 2005-03-08 조선내화 주식회사 carbon for refractories & refractories with carbon
KR101392720B1 (en) * 2013-03-21 2014-05-14 (주)포스코켐텍 Composition for high-temperature adhesive the refractory brick having execellent bonding strength
CN116656022A (en) * 2023-05-30 2023-08-29 荣成荣鹰橡胶制品有限公司 Solid tire tread rubber and preparation method thereof
CN116656022B (en) * 2023-05-30 2024-01-02 荣成荣鹰橡胶制品有限公司 Solid tire tread rubber and preparation method thereof

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