CN111848198A - 一种氧化铝陶瓷阀芯瓷片的制备方法及其产品 - Google Patents

一种氧化铝陶瓷阀芯瓷片的制备方法及其产品 Download PDF

Info

Publication number
CN111848198A
CN111848198A CN202010755650.2A CN202010755650A CN111848198A CN 111848198 A CN111848198 A CN 111848198A CN 202010755650 A CN202010755650 A CN 202010755650A CN 111848198 A CN111848198 A CN 111848198A
Authority
CN
China
Prior art keywords
alumina
valve core
ceramic
ball milling
chip
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.)
Granted
Application number
CN202010755650.2A
Other languages
English (en)
Other versions
CN111848198B (zh
Inventor
曹建平
曹培福
曹建辉
刘平
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.)
Hunan Jusheng Technology Co ltd
Hunan Xinhuayuan Technology Co ltd
Xinxing Electronic Ceramics Co ltd
Original Assignee
Hunan Jusheng Technology Co ltd
Hunan Xinhuayuan Technology Co ltd
Xinxing Electronic Ceramics Co ltd
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 Hunan Jusheng Technology Co ltd, Hunan Xinhuayuan Technology Co ltd, Xinxing Electronic Ceramics Co ltd filed Critical Hunan Jusheng Technology Co ltd
Priority to CN202010755650.2A priority Critical patent/CN111848198B/zh
Publication of CN111848198A publication Critical patent/CN111848198A/zh
Application granted granted Critical
Publication of CN111848198B publication Critical patent/CN111848198B/zh
Priority to US17/389,320 priority patent/US11834380B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C04B35/01—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
    • C04B35/10—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 aluminium oxide
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/107—Refractories by fusion casting
    • C04B35/109—Refractories by fusion casting containing zirconium oxide or zircon (ZrSiO4)
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/111—Fine ceramics
    • C04B35/117—Composites
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/111—Fine ceramics
    • C04B35/117—Composites
    • C04B35/119—Composites with zirconium oxide
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • 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
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • 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
    • C04B35/638—Removal thereof
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5244—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
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5276—Whiskers, spindles, needles or pins
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5463—Particle size distributions
    • C04B2235/5472—Bimodal, multi-modal or multi-fraction
    • 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
    • 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
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606—Drying
    • 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
    • C04B2235/612—Machining
    • 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
    • C04B2235/65—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
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/6567—Treatment time
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

本发明公开了一种氧化铝陶瓷阀芯瓷片的制备方法及其产品。通过氧化铝、烧结助剂和增韧剂按照原料配比进行混合，球磨，干燥，冷等静压成型，烧结等步骤得到氧化铝陶瓷阀芯瓷片，由于采用纳米氧化铝和氧化锆作为烧结助剂制备得到的氧化铝陶瓷阀芯瓷片，该材料具有优异的弯曲强度、断裂韧性、硬度和低磨损率，而且弯曲强度能够达到357.8～360.06MPa、断裂韧性4.32～4.56MPa1/2、维氏硬度为1592.7～1614.8MPa，磨损率为0.04～0.09％，是用于制备水龙头阀芯的理想材料。

Description

一种氧化铝陶瓷阀芯瓷片的制备方法及其产品
技术领域
本发明属于陶瓷制备领域，具体涉及一种氧化铝陶瓷阀芯瓷片的制备方法及其产品。
背景技术
氧化铝陶瓷(Al2O3)作为结构陶瓷的一种具有硬度高、高温稳定性好和价格低廉等优点，在工业生产中被广泛使用，但是其较低的韧性限制了进一步的应用。在氧化铝陶瓷的基础上，人们通常引入烧结助剂来改善氧化铝陶瓷的相应性能以使其使用目前的需求。由于氧化铝陶瓷具有良好的性能和强度被用于制备成陶瓷阀芯。
影响氧化铝陶瓷的主要因素有断裂韧性、弹性模量、弯曲强度、硬度等，因而通过在氧化铝陶瓷制备过程中添加烧结助剂等材料等可以改善其性能，例如葛曷一等对微晶粒Al2O3-ZrO2陶瓷组织和性能进行了研究，发现以TiO2-MgO为烧结助剂，烧结温度为1600℃，纳米t-ZrO2颗粒质量分数为5％时，陶瓷的综合性能最优，其致密度为98.7％，抗折强度为274.82MPa，断裂韧性高达7.32MPa·m1/2。任会兰课题组添加15％ZrO2增韧Al2O3陶瓷后，所得材料的断裂韧性为8.42MPa·m1/2，比未添加时提高了将近50％。而目前主要添加烧结助剂有Si3N4、SiC、SiO2、ZrO2等氧化物与氧化铝陶瓷构成复合陶瓷，进一步提高Al2O3陶瓷的韧性、强度和硬度。但是现有技术中并没有研究通过添加纳米氧化铝烧结助剂用于氧化铝陶瓷制备过程中以提高Al2O3陶瓷的韧性、强度和硬度的相关研究。而且现有的研究对氧化铝陶瓷性能的提升并不是很理想，特别是在作为水龙头陶瓷阀芯时，对其强度和韧性等性能需要有较高的要求，因而如何更好的提高氧化铝陶瓷硬度的同时提高其弯曲强度和断裂韧性，仍是目前急需解决的问题。
发明内容
本发明所要解决的技术问题在于针对上述现有技术中的不足，提供一种氧化铝陶瓷阀芯瓷片的制备方法及其产品，其致密性好，具有较高的弯曲强度、断裂韧性和硬度，即所述氧化铝阀芯瓷片的弯曲强度为357.8～360.06MPa、断裂韧性4.32～4.56MPa1/2、维氏硬度为1592.7～1614.8MPa，磨损率为0.04～0.09％，其是用于制备水龙头阀芯的理想材料。
本发明采用以下技术方案：
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝、烧结助剂和SiC晶须放入球磨罐中进行球磨，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为20～30nm，所述纳米氧化氧化铝的添加量为0.5～1wt％；所述氧化锆的添加量为0.5～1wt％；所述SiC晶须的添加量为2～5wt％；
(2)球磨结束后，将得到的混合物料进行干燥，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐20～30h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为140MPa～160MPa下保压5～10min制成胚体，将所得的胚体烘干，然后对胚体进行机械加工(使其尺寸更接近于氧化铝陶瓷阀芯瓷片按照线收缩率放大的尺寸)，在马弗炉中并在微波辅助条件下于600～800℃排胶1～2h，然后于1500～1600℃下烧结1～2h，随炉冷却至室温，再经精加工(即对完成烧结的碳化硅陶瓷阀芯进行机床加工，尤其是阀芯头部和阀芯主体的连续变径处，以保证与阀套的配套尺寸)，得到氧化铝陶瓷阀芯瓷片。
优选的，在步骤(1)中，所述氧化铝的平均粒径D50为1.5μm。
优选的，在步骤(1)中，所述球磨时间为3～5h，转速为380～420r/min。
优选的，在步骤(2)中，所述干燥是在80～100℃下干燥4～6h；所述烘干是在60～80℃烘干12～20h。
优选的，在步骤(2)中，所述排胶过程的升温速率为2～3℃/min，于1500～1600℃下烧结1～2h的升温速率为8～10℃/min。
本发明的另一个技术方案是，基于上述制备方法制备的一种氧化铝陶瓷阀芯瓷片，所述氧化铝陶瓷阀芯瓷片的弯曲强度为357.8～360.06MPa、断裂韧性4.32～4.56MPa1 /2、维氏硬度为1592.7～1614.8MPa，磨损率为0.04～0.09％。
本发明的另一个技术方案是，基于上述氧化铝陶瓷阀芯瓷片的用途，将所述陶瓷阀芯瓷片用于制备水龙头阀芯，所述水龙头阀芯时由以固定芯片和活动芯片组成，活动芯片是一对称扇形结构，通过选择活动阀芯可以调节水流量。
与现有技术相比，本发明至少具有以下有益效果：
1)通过氧化铝、烧结助剂和SiC晶须按照原料配比进行混合，球磨，干燥，冷等静压成型，烧结等步骤得到氧化铝陶瓷阀芯瓷片，由于采用纳米氧化铝和氧化锆作为烧结助剂，SiC晶须作为增韧剂，制备得到的氧化铝陶瓷阀芯瓷片，该材料具有优异的弯曲强度、断裂韧性、硬度和低磨损率，而且弯曲强度能够达到357.8～360.06MPa、断裂韧性4.32～4.56MPa1/2、维氏硬度为1592.7～1614.8MPa，磨损率为0.04～0.09％，是用于制备水龙头阀芯的理想材料。
2)由于采用纳米氧化铝和氧化锆共同作为烧结助剂，利用两者之间的协同作用，促使了氧化铝陶瓷的致密性得到显著提高，进而提高了弯曲强度、断裂韧性和硬度，降低了磨损率，同时还添加了SiC晶须，进一步降低了磨损率,同时利用纳米氧化铝的纳米效应，使氧化铝陶瓷更加致密，性能更加优异。
3)在微波辅助条件下进行排胶处理，促进了气体的排出，而且使其具有良好的烧结特性，陶瓷材料的孔隙率得到进一步降低，致密性得到提高，弯曲强度和硬度也得到进一步的提高，磨损率得到进一步降低。
综上所述，本发明制备的一种氧化铝陶瓷阀芯瓷片，由于致密性好，具有较高的弯曲强度、断裂韧性和硬度，低的磨损率，是一种用于制备水龙头阀芯的理想材料。
下面通过实施例，对本发明的技术方案做进一步的详细描述。
具体实施方式
本发明提供的一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为3～5h，转速为380～420r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为20～30nm，所述纳米氧化氧化铝的添加量为0.5～1wt％；所述氧化锆的添加量为0.5～1wt％；所述SiC晶须的添加量为2～5wt％；
(2)球磨结束后，将得到的混合物料在80～100℃下干燥4～6h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐20～30h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为140MPa～160MPa下保压5～10min制成胚体，将所得的胚体在60～80℃烘干12～20h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于600～800℃排胶1～2h，升温速率为2～3℃/min，然后于1500～1600℃下烧结1～2h，升温速率为8～10℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在所示的本发明实施例的组件可以通过各种不同的配置来布置和设计。因此，以下对本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为25nm，所述纳米氧化氧化铝的添加量为0.75wt％；所述氧化锆的添加量为0.75wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
实施例2
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为5h，转速为380r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为30nm，所述纳米氧化氧化铝的添加量为0.5wt％；所述氧化锆的添加量为1wt％；所述SiC晶须的添加量为5wt％；
(2)球磨结束后，将得到的混合物料在100℃下干燥4h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐30h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为160MPa下保压5min制成胚体，将所得的胚体在80℃烘干12h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于800℃排胶1h，升温速率为3℃/min，然后于1600℃下烧结1h，升温速率为10℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
实施例3
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为3h，转速为420r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为20nm，所述纳米氧化氧化铝的添加量为1wt％；所述氧化锆的添加量为0.5wt％；所述SiC晶须的添加量为2wt％；
(2)球磨结束后，将得到的混合物料在80℃下干燥6h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐20h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为140MPa下保压10min制成胚体，将所得的胚体在60℃烘干20h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于600℃排胶2h，升温速率为2℃/min，然后于1500℃下烧结2h，升温速率为8℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
实施例4
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为25nm，所述纳米氧化氧化铝的添加量为1wt％；所述氧化锆的添加量为0.5wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
实施例5
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为25nm，所述纳米氧化氧化铝的添加量为0.5wt％；所述氧化锆的添加量为1wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
对比例1
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为25nm，所述纳米氧化氧化铝的添加量为0.75wt％；所述氧化锆的添加量为0.75wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
对比例2
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝，所述纳米氧化铝的粒径为25nm，所述纳米氧化氧化铝的添加量为1.5wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
对比例3
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为氧化锆，所述氧化锆的添加量为1.5wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
对比例4
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为100nm，所述纳米氧化氧化铝的添加量为0.75wt％；所述氧化锆的添加量为0.75wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
对比例5
一种氧化铝陶瓷阀芯瓷片的制备方法，包括以下步骤：
(1)将纯度大于99.5％的氧化铝(平均粒径D50为1.5μm)、烧结助剂和SiC晶须放入球磨罐中进行球磨，所述球磨时间为4h，转速为400r/min，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为25nm，所述纳米氧化氧化铝的添加量为0.75wt％；所述氧化锆的添加量为0.75wt％；所述SiC晶须的添加量为4wt％；
(2)球磨结束后，将得到的混合物料在90℃下干燥5h，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐25h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为150MPa下保压8min制成胚体，将所得的胚体在70℃烘干18h，然后对胚体进行机械加工，在马弗炉中于700℃排胶1.5h，升温速率为2.5℃/min，然后于1550℃下烧结1.5h，升温速率为9℃/min，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
将实施例1-5和对比例1-5进行力学性能测试。
采用显微维氏硬度计测量材料的维氏硬度，载荷为10N，加载时间为5S，硬度值是测量五次的平均值；采用PT-1036PC型万能材料实验机测试样品的弯曲强度，试样尺寸为34mm×5mm×5mm，跨距为16mm，压头加载速度为0.5mm/min，弯曲强度取三次测量结果的平均值，采用单边切口梁法测试试样的断裂韧性，压头速率为0.05mm/min；通过取几组陶瓷零件装在阀体上进行摩擦磨损试验，在相同条件下用失重法比较磨损值(循环4万次)，具体测试结果见表1：
表1实施例1-5和对比例1-3的力学性能
Figure BDA0002611483420000121
综上所述，本发明制备的一种氧化铝陶瓷阀芯瓷片，制备方法简单，而且通过实施例1和对比例1-5的对比例可以发现，由于纳米氧化铝和氧化锆两者之间的协同作用，能够显著提高氧化铝陶瓷的硬度，弯曲强度和断裂韧性，降低了磨损率，使其具有硬度Hv和弯曲强度最高分别可达1614.8MPa和360.06MPa，断裂韧性最高为4.56MPa1/2，磨损率最低为0.04。而且通过微波辅助，添加SiC晶须和纳米氧化铝粒径的选取，进一步提高了氧化铝陶瓷的硬度，弯曲强度和断裂韧性，降低了磨损率。
将实施例1氧化铝陶瓷阀芯瓷片制备水龙头阀芯，所述水龙头阀芯时由以固定芯片和活动芯片组成，活动芯片是一对称扇形结构，通过选择活动阀芯可以调节水流量，制备的阀芯能够满足实际的需求，而且节约成本。
以上内容仅为说明本发明的技术思想，不能以此限定本发明的保护范围，凡是按照本发明提出的技术思想，在技术方案基础上所做的任何改动，均落入本发明权利要求书的保护范围之内。

Claims (7)

1.一种氧化铝陶瓷阀芯瓷片的制备方法，其特征在于，包括以下步骤：
(1)将纯度大于99.5％的氧化铝、烧结助剂和SiC晶须放入球磨罐中进行球磨，其中，球磨介质为无水乙醇；所述烧结助剂为纳米氧化铝和氧化锆，所述纳米氧化铝的粒径为20～30nm，所述纳米氧化氧化铝的添加量为0.5～1wt％；所述氧化锆的添加量为0.5～1wt％；所述SiC晶须的添加量为2～5wt％；
(2)球磨结束后，将得到的混合物料进行干燥，然后加入质量分数为5％的聚乙烯醇(PVA)水溶液，陈腐20～30h后造粒，将造粒的粉体装入硬橡胶模套中，经过密封放入冷等静压机中成型，所述压力为140MPa～160MPa下保压5～10min制成胚体，将所得的胚体烘干，然后对胚体进行机械加工，在马弗炉中并在微波辅助条件下于600～800℃排胶1～2h，然后于1500～1600℃下烧结1～2h，随炉冷却至室温，再经精加工，得到氧化铝陶瓷阀芯瓷片。
2.根据权利要求1所述的制备方法，其特征在于：在步骤(1)中，所述氧化铝的平均粒径D50为1.5μm。
3.根据权利要求1所述的制备方法，其特征在于：在步骤(1)中，所述球磨时间为3～5h，转速为380～420r/min。
4.根据权利要求1所述的制备方法，其特征在于：在步骤(2)中，所述干燥是在80～100℃下干燥4～6h；所述烘干是在60～80℃烘干12～20h。
5.根据权利要求1所述的制备方法，其特征在于：在步骤(2)中，所述排胶过程的升温速率为2～3℃/min，于1500～1600℃下烧结1～2h的升温速率为8～10℃/min。
6.根据权利要求1-5任一项所述的制备方法氧化铝陶瓷阀芯瓷片，其特征在于：所述氧化铝陶瓷阀芯瓷片的弯曲强度为357.8～360.06MPa、断裂韧性4.32～4.56MPa1/2、维氏硬度为1592.7～1614.8MPa，磨损率为0.04～0.09％。
7.根据权利要求6所述的氧化铝陶瓷阀芯瓷片的用途，其特征在于：将所述陶瓷阀芯瓷片用于制备水龙头阀芯，所述水龙头阀芯时由以固定芯片和活动芯片组成，活动芯片是一对称扇形结构，通过选择活动阀芯可以调节水流量。
CN202010755650.2A 2020-07-31 2020-07-31 一种氧化铝陶瓷阀芯瓷片的制备方法及其产品 Active CN111848198B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010755650.2A CN111848198B (zh) 2020-07-31 2020-07-31 一种氧化铝陶瓷阀芯瓷片的制备方法及其产品
US17/389,320 US11834380B2 (en) 2020-07-31 2021-07-29 Preparation method of alumina ceramic valve core ceramic chip and product thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010755650.2A CN111848198B (zh) 2020-07-31 2020-07-31 一种氧化铝陶瓷阀芯瓷片的制备方法及其产品

Publications (2)

Publication Number Publication Date
CN111848198A true CN111848198A (zh) 2020-10-30
CN111848198B CN111848198B (zh) 2021-03-12

Family

ID=72945880

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010755650.2A Active CN111848198B (zh) 2020-07-31 2020-07-31 一种氧化铝陶瓷阀芯瓷片的制备方法及其产品

Country Status (2)

Country Link
US (1) US11834380B2 (zh)
CN (1) CN111848198B (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113173797A (zh) * 2021-06-01 2021-07-27 湖南新华源科技有限公司 一种Al2O3基陶瓷焊接密封元器件及其制备方法
CN114560686A (zh) * 2022-03-24 2022-05-31 东莞市西陶精密陶瓷有限公司 一种陶瓷方孔管及其制备方法和应用
CN114702306A (zh) * 2022-04-22 2022-07-05 湖南省新化县鑫星电子陶瓷有限责任公司 一种95氧化铝陶瓷基片的制备方法及其产品
CN115353401A (zh) * 2022-07-22 2022-11-18 济南大学 一种复合刚玉陶瓷及其制备方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114702327B (zh) * 2022-03-24 2023-05-23 广东工业大学 一种高强韧氧化铝基复合陶瓷基板及其制备方法
CN114702305B (zh) * 2022-03-25 2023-07-21 佛山(华南)新材料研究院 一种可杀菌自清洁的射频美容仪用透明陶瓷及其制备方法
CN114853450B (zh) * 2022-05-23 2023-04-28 西北工业大学 一种光固化3d打印氧化铝基陶瓷型芯及其制备方法
CN115448742B (zh) * 2022-08-29 2024-03-29 湖南圣瓷科技有限公司 氧化铝防静电陶瓷及其制备方法
CN115677365B (zh) * 2022-10-10 2023-06-09 福建省德化县宏顺发陶瓷工艺有限公司 一种高强度日用陶瓷及其制备方法
CN116239367B (zh) * 2022-12-28 2024-01-09 湖南聚能陶瓷材料有限公司 一种高导热氧化铝陶瓷材料及陶瓷电路基板
CN116120075A (zh) * 2022-12-29 2023-05-16 上海琥崧智能科技股份有限公司 一种利用砂磨机制备氮化铝粉体的方法及氮化铝粉体
CN117567161A (zh) * 2023-11-30 2024-02-20 湖南省新化县长江电子有限责任公司 一种高耐磨气阀片陶瓷材料的制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508554A2 (en) * 2003-08-22 2005-02-23 Matsushita Electric Works, Ltd. ZrO2-Al2O3 composite ceramic material
CN102145993A (zh) * 2011-05-12 2011-08-10 安徽理工大学 一种低温快速烧成高强氧化铝陶瓷及其制备方法
CN103101945A (zh) * 2013-02-01 2013-05-15 湖南省中晟热能科技有限公司 一种致密高纯纳米氧化铝材料的微波工业化生产方法
CN103360040A (zh) * 2013-07-22 2013-10-23 南京中江新材料科技有限公司 高导热氧化铝陶瓷材料及其低温微波烧结方法
CN105254283A (zh) * 2015-09-17 2016-01-20 上海应用技术学院 一种氧化铝陶瓷基材料的制备方法
CN110483085A (zh) * 2019-08-01 2019-11-22 广东工业大学 一种晶须增强氧化铝复合陶瓷及其制备方法与应用

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04100505A (ja) * 1990-08-20 1992-04-02 Toto Ltd セラミックフィルタの製造方法
CN101067461A (zh) * 2007-06-01 2007-11-07 张谭伟 一种全瓷质龙头阀门阀体的制作工艺及其应用
CN101880173A (zh) * 2009-05-07 2010-11-10 宁波大学 一种碳化硅晶须原位增韧氧化铝陶瓷
CN104310971B (zh) * 2014-09-29 2016-05-04 焦作市维纳科技有限公司 氧化铝复合材料及其制备大口径工业陶瓷阀芯的方法
CN105090553B (zh) * 2015-09-01 2018-05-25 厦门胜中流体控制技术有限公司 一种陶瓷球阀用组合式陶瓷球芯及其制作工艺
CN106083032A (zh) * 2016-06-20 2016-11-09 苏州科斯曼照明工程有限公司 一种用于制作水龙头阀芯的陶瓷
CN108821782A (zh) * 2018-07-10 2018-11-16 哈尔滨工业大学 一种高温熔体急冷法制备氧化铝基非晶和固溶体陶瓷微米粉混合物的方法
CN108704770A (zh) * 2018-07-30 2018-10-26 莫光光 一种氧化铝陶瓷花洒及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508554A2 (en) * 2003-08-22 2005-02-23 Matsushita Electric Works, Ltd. ZrO2-Al2O3 composite ceramic material
CN102145993A (zh) * 2011-05-12 2011-08-10 安徽理工大学 一种低温快速烧成高强氧化铝陶瓷及其制备方法
CN103101945A (zh) * 2013-02-01 2013-05-15 湖南省中晟热能科技有限公司 一种致密高纯纳米氧化铝材料的微波工业化生产方法
CN103360040A (zh) * 2013-07-22 2013-10-23 南京中江新材料科技有限公司 高导热氧化铝陶瓷材料及其低温微波烧结方法
CN105254283A (zh) * 2015-09-17 2016-01-20 上海应用技术学院 一种氧化铝陶瓷基材料的制备方法
CN110483085A (zh) * 2019-08-01 2019-11-22 广东工业大学 一种晶须增强氧化铝复合陶瓷及其制备方法与应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
林广涌等: "ZrO2增韧Al2O3/SiCw陶瓷复合材料研究", 《华南理工大学学报(自然科学版)》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113173797A (zh) * 2021-06-01 2021-07-27 湖南新华源科技有限公司 一种Al2O3基陶瓷焊接密封元器件及其制备方法
CN113173797B (zh) * 2021-06-01 2021-12-07 湖南新华源科技有限公司 一种Al2O3基陶瓷焊接密封元器件及其制备方法
CN114560686A (zh) * 2022-03-24 2022-05-31 东莞市西陶精密陶瓷有限公司 一种陶瓷方孔管及其制备方法和应用
CN114560686B (zh) * 2022-03-24 2023-01-17 东莞市西陶精密陶瓷有限公司 一种陶瓷方孔管及其制备方法和应用
CN114702306A (zh) * 2022-04-22 2022-07-05 湖南省新化县鑫星电子陶瓷有限责任公司 一种95氧化铝陶瓷基片的制备方法及其产品
CN114702306B (zh) * 2022-04-22 2022-12-13 湖南省新化县鑫星电子陶瓷有限责任公司 一种95氧化铝陶瓷基片的制备方法及其产品
CN115353401A (zh) * 2022-07-22 2022-11-18 济南大学 一种复合刚玉陶瓷及其制备方法

Also Published As

Publication number Publication date
US20220033315A1 (en) 2022-02-03
US11834380B2 (en) 2023-12-05
CN111848198B (zh) 2021-03-12

Similar Documents

Publication Publication Date Title
CN111848198B (zh) 一种氧化铝陶瓷阀芯瓷片的制备方法及其产品
CN110483085B (zh) 一种晶须增强氧化铝复合陶瓷及其制备方法与应用
KR101747870B1 (ko) 주성분으로서의 알루미늄 옥사이드 및 지르코늄 옥사이드, 및 분산질상으로 구성되는 세라믹 복합 재료
CN101767989A (zh) ZrO2/Ti(C,N)纳米复合陶瓷模具材料及其制备方法
CN101798217A (zh) 一种复合稀土稳定氧化锆基多元纳微米复合陶瓷工模具材料及其制备方法
CN108409336A (zh) 氮化硅陶瓷及其制备方法
CN110818428A (zh) 一种共晶增强增韧氮化硅陶瓷的制备方法
CN112266251B (zh) 一种基于放电等离子烧结的氮化硅/碳化钛陶瓷材料制备方法
CN112624793A (zh) 一种氧化铝基多孔陶瓷材料的制备方法
CN110105057A (zh) 陶瓷手臂及其制备方法、真空吸附机械手和晶圆传输装置
CN110818395B (zh) SiC晶须协同氮化硅颗粒增韧氧化铝基陶瓷刀具材料及其制备工艺
CN112552041B (zh) 制备氧化锆陶瓷的组合物、氧化锆陶瓷及其制备方法和应用
CN111943702A (zh) 一种原位自生β-SIALON晶须增韧碳化钨复合材料及其制备方法与应用
CN109320218B (zh) 一种铝锆耐火材料砖及其制备方法
CN106747433B (zh) 氧化锆基纳米陶瓷工模具材料及其制备方法
JPH0645389A (ja) ボンディングツール
CN109336614B (zh) 一种Sialon/Ti-22Al-25Nb陶瓷基复合材料的制备方法
CN108329018B (zh) 一种增韧氧化铝复合陶瓷及其制备方法
CN114380606A (zh) 一种机加工高强度耐火材料制备工艺
CN108840668A (zh) 一种耐磨材料
CN113173789A (zh) 一种无粘结相耐腐蚀硬质合金及其生产工艺和应用
CN114180980A (zh) 一种自增韧99氧化铝陶瓷基板及其制备方法
CN113956024A (zh) 一种抗热震复相陶瓷材料
CN106927840B (zh) 抗热震复相陶瓷材料及基于该材料的陶瓷漏嘴的制备
CN110723974A (zh) 一种高硬度Sialon陶瓷材料及其制备方法和应用

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A preparation method and product of alumina ceramic valve core ceramic chip

Effective date of registration: 20230104

Granted publication date: 20210312

Pledgee: Agricultural Bank of China Limited Xinhua County Sub-branch

Pledgor: Xinxing Electronic Ceramics Co.,Ltd.|HUNAN XINHUAYUAN TECHNOLOGY Co.,Ltd.|Hunan Jusheng Technology Co.,Ltd.

Registration number: Y2023980030136

PE01 Entry into force of the registration of the contract for pledge of patent right