CN106242603B - A kind of sintering supporting body and preparation method thereof - Google Patents

A kind of sintering supporting body and preparation method thereof Download PDF

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CN106242603B
CN106242603B CN201610701985.XA CN201610701985A CN106242603B CN 106242603 B CN106242603 B CN 106242603B CN 201610701985 A CN201610701985 A CN 201610701985A CN 106242603 B CN106242603 B CN 106242603B
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parts
supporting body
powder
sintering
mullite
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CN106242603A (en
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刘思连
胡世勇
刘宇超
刘金远
雷志鹤
李建明
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Jiangxi Province Anyuan Industrial Ceramic Co Ltd
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Jiangxi Province Anyuan Industrial Ceramic Co Ltd
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    • 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
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    • 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
    • C04B35/14—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 silica
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
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    • 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
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
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    • 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
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • 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
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
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    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
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    • 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
    • C04B2235/3427—Silicates other than clay, e.g. water glass
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    • 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
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
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    • 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
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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    • 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
    • C04B2235/402—Aluminium
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    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
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  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A kind of sintering supporting body, it is process by mullite, aluminium powder, activated alumina, kaolin, quartz, cordierite, magnesium oxychloride, talcum powder, dextrin, LiMn2O4, LiFePO4, cobalt acid lithium, Micropore Agent；It is characterized in that：By middle composition by weight, 10 25 parts of mullite, 15 30 parts of aluminium powder, 5 15 parts of kaolin, 15 20 parts of cordierite, 38 parts of magnesium oxychloride, 3 10 parts of talcum powder, 28 parts of activated alumina, 30 50 parts of quartz, 6 12 parts of dextrin, 25 parts of LiMn2O4,25 parts of LiFePO4,38 parts of cobalt acid lithium, 10 15 parts of Micropore Agent；Advantage is（1）Processing technology is simple, and raw material are easy to get, and service life is long, using the number of occurrence up to 50 times or more；（2）Thermal shock resistance is strong, does not interfere with sintering and holds the chemical reaction and crystallization recombination for burning object in sintering process；（3）Corrosion resistance is strong；（4）Environmental Safety；（5）Intensity is big, and non-breakable and powder is fallen, and can be widely used in sintering and make supporting body.

Description

A kind of sintering supporting body and preparation method thereof
Technical field
The present invention relates to a kind of refractory materials, and in particular to a kind of supporting body of the sintering in calcining and its making side Method.
Background technology
Numerous with product made of new material at present, application field is also very extensive, such as manufacture mobile phone, computer with And battery product used in automobile and some build-up members will pass through calcine technology and be burnt into.And existing sintering supporting body is Saggar, processing dispensing are made of general refractory material, it is disadvantageous in that intensity is low, will be crushed using 3-4 times, and When carrying sintering, bowl powder is scattered, and is reacted with holding to burn object and generate, and seriously affects the quality held and burn object, then be porosity Low, bowl weight, holds that burn object uneven heating even, thus fits the requirement of current high-tech product of having more than is needed, so, for many years by us The research come, develop it is a kind of can be applicable in make in new material Product Process make the supporting body of sintering, make sintering supporting body and It holds burning object mutually to set off in calcination process, improves the quality held and burn object.
Invention content
The purpose of the present invention is overcoming the shortcomings of existing supporting body saggar, providing a kind of can be used to make new material product work The supporting body and preparation method thereof of sintering in skill.
The technical solution adopted by the present invention is：The supporting body is by mullite, aluminium powder, activated alumina, kaolin, stone English, cordierite, magnesium oxychloride, talcum powder, dextrin, LiMn2O4, LiFePO4, cobalt acid lithium, Micropore Agent are process.Its feature exists In：Component by weight, 10-25 parts of mullite, 15-30 parts of aluminium powder, 5-15 parts of kaolin, 15-20 parts of cordierite, magnesium oxychloride 3-8 Part, 3-10 parts of talcum powder, 2-8 parts of activated alumina, 30-50 parts of quartz, 6-12 parts of dextrin, 2-5 parts of LiMn2O4, LiFePO4 2- 5 parts, 3-8 parts of cobalt acid lithium, 10-15 parts of Micropore Agent assemble being process.
Mullite of the present invention refers to 60% or more mullite of aluminum content, and aluminium powder refers to aluminum content 70% or more.
Mullite that the present invention uses, aluminium powder, kaolin, quartz, cordierite are by except the finished market product after iron is former Material is provided as skeleton raw material.
The magnesium oxychloride of the present invention, the raw material of talcum powder are as lubrication dispersing agent.
The dextrin raw material of the present invention is the kneading agent as mud refining.
The LiMn2O4 of the present invention, LiFePO4, cobalt acid lithium are that it, which can hinder to hold, burns object with supporting body in height as stabilizer Sintering reaction does not occur under temperature（Chemical reaction）.
The activated alumina of the present invention is that processing supporting body is made to make LiMn2O4, LiFePO4, cobalt acid lithium when calcining finished product Catalytic action is played in the calcining of high temperature 1300-1400 degree with mullite, aluminium powder, kaolin, quartz, cordierite, promotes bowl It forms porcelainization and body is complexed, the chemical stability and corrosion resistance, intensity to enhance sintering supporting body are big, not will produce powder And it is broken, increase the service life of bowl.
The Micropore Agent of the present invention refers to the sawdust or flyash or activated carbon of 100 mesh or more, they are in bowl manufacturing process Micropore is formed after middle sintering, object is burnt to alleviate the weight of bowl and capable of making and hold and is heated evenly, improve the product matter held and burn object Amount.
The supporting body of the present invention refers to the saggar for being calcined article for carrying in kiln calcining.
The present invention is made of following process method and step：
The first step, by raw material component by weight, 10-25 parts of mullite, 15-30 parts of aluminium powder, 5-15 parts of kaolin, cordierite 15-20 parts, 3-8 parts of magnesium oxychloride, 3-10 parts of talcum powder, 2-8 parts of activated alumina, 30-50 parts of quartz, 6-12 parts of dextrin, mangaic acid 2-5 parts of lithium, 2-5 parts of LiFePO4,3-8 parts of cobalt acid lithium, 10-15 parts of Micropore Agent prepare, and be ground into after being mixed 100 mesh with On powder；
Powder is transported in blender and is stirred by second step, while suitable quantity of water stirring is added；
Third step wraps the raw material walk after stirring with plastic cloth, and progress is aging, aging laggard through 24 hours or more Row vacuum tabletting, then slice is molded through mold green compact；
4th step is calcined after being dried the green body pressed in 1300-1400 degree, is down to after natural temperature i.e. It is used as sintering supporting body is made in new material Product Process.
The advantage of the invention is that（1）Processing technology is simple, and raw material are easy to get, and service life is long, can using the number of occurrence Up to 50 times or more；（2）Thermal shock resistance is strong, does not interfere with sintering and holds the chemical reaction and crystallization recombination for burning object in sintering process； （3）Corrosion resistance is strong；（4）Environmental Safety；（5）Intensity is big, and non-breakable and powder is fallen.
Specific embodiment
Specific manufacturing process：By taking the sintering supporting body that lithium battery sinter makes as an example
The first step, by raw material component by weight, 20 parts of mullite, 25 parts of aluminium powder, 12 parts of kaolin, 18 parts of cordierite, water chestnut 6 parts of magnesium powder, 5 parts of talcum powder, 6 parts of activated alumina, 40 parts of quartz, 10 parts of dextrin, 4 parts of LiMn2O4,3 parts of LiFePO4, cobalt acid 6 parts of lithium, 12 parts of Micropore Agent prepare, and are ground into the powder of 100 mesh or more after being mixed；
Powder is transported in blender and is stirred 30 minutes by second step, while suitable quantity of water stirring is added；
Third step wraps the raw material walk after stirring with plastic cloth, and progress is aging, aging laggard through 24 hours or more Row vacuum tabletting, then slice is molded through mold green compact；
4th step is calcined after being dried the base pressed in 1300-1400 degree, is down to after natural temperature and is used Make to make sintering supporting body use in new material Product Process.

Claims (3)

1. a kind of sintering supporting body, the sintering supporting body is green by mullite, aluminium powder, activated alumina, kaolin, quartz, violet Stone, magnesium oxychloride, talcum powder, dextrin, LiMn2O4, LiFePO4, cobalt acid lithium and Micropore Agent are process, it is characterised in that：It is described It is sintered supporting body component by weight, 10-25 parts of mullite, 15-30 parts of aluminium powder, 5-15 parts of kaolin, 15-20 parts of cordierite, water chestnut 3-8 parts of magnesium powder, 3-10 parts of talcum powder, 2-8 parts of activated alumina, 30-50 parts of quartz, 6-12 parts of dextrin, 2-5 parts of LiMn2O4, phosphorus 2-5 parts of sour iron lithium, 3-8 parts of cobalt acid lithium, 10-15 parts of Micropore Agent.
2. a kind of sintering supporting body according to claim 1, which is characterized in that 60% or more the aluminum content of mullite, aluminium powder Aluminum content 70% or more.
3. a kind of processing method of sintering supporting body according to claim 1, which is characterized in that the processing method includes Following steps：
The first step, by raw material component by weight, 10-25 parts of mullite, 15-30 parts of aluminium powder, 5-15 parts of kaolin, cordierite 15- 20 parts, 3-8 parts of magnesium oxychloride, 3-10 parts of talcum powder, 2-8 parts of activated alumina, 30-50 parts of quartz, 6-12 parts of dextrin, LiMn2O4 2- 5 parts, 2-5 parts of LiFePO4,3-8 parts of cobalt acid lithium, 10-15 parts of Micropore Agent prepare, and be ground into 100 mesh or more after being mixed Powder；
Second step will be stirred in powder transfer to blender, while suitable quantity of water stirring is added；
Third step wraps the raw material walk after stirring with plastic cloth, carry out it is aging, through being carried out after 24 hours or more aging Vacuum tabletting, then slice is molded through mold green compact；
4th step is calcined after being dried the base pressed in 1300-1400 degree, is down to after natural temperature and is used as material Expect that making sintering supporting body in Product Process uses.
CN201610701985.XA 2016-08-23 2016-08-23 A kind of sintering supporting body and preparation method thereof Active CN106242603B (en)

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CN107382297A (en) * 2017-07-17 2017-11-24 衡东县东康瓷业有限公司 It is a kind of to be used to produce saggar of ceramics and preparation method thereof
CN107382298A (en) * 2017-07-19 2017-11-24 宜兴市锦泰耐火材料有限公司 Battery material roasting saggar and preparation method thereof
CN107634200A (en) * 2017-09-08 2018-01-26 绵阳梨坪科技有限公司 A kind of inorganic dispersant is used for the method for preparing lithium iron phosphate cell material
CN109467422B (en) * 2018-04-20 2021-07-02 湖南德景源科技有限公司 Special high-cycle special ceramic crucible for lithium battery and preparation method thereof

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CN103664153A (en) * 2013-12-11 2014-03-26 长兴宏业高科高温耐火材料有限公司 High temperature creep resistant mullite-cordierite product and preparation method thereof
CN105669223A (en) * 2016-01-08 2016-06-15 浙江长兴久鑫耐火材料有限公司 Sagger
CN105698542A (en) * 2016-03-21 2016-06-22 武汉理工大学 Lithium battery high-temperature corrosion resistance laminar saggar and preparation method thereof

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US8883663B2 (en) * 2010-11-30 2014-11-11 Corning Incorporated Fusion formed and ion exchanged glass-ceramics

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103664153A (en) * 2013-12-11 2014-03-26 长兴宏业高科高温耐火材料有限公司 High temperature creep resistant mullite-cordierite product and preparation method thereof
CN105669223A (en) * 2016-01-08 2016-06-15 浙江长兴久鑫耐火材料有限公司 Sagger
CN105698542A (en) * 2016-03-21 2016-06-22 武汉理工大学 Lithium battery high-temperature corrosion resistance laminar saggar and preparation method thereof

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