CN108439972A - 老化性能优良的低残压直流压敏电阻制备方法 - Google Patents

老化性能优良的低残压直流压敏电阻制备方法 Download PDF

Info

Publication number
CN108439972A
CN108439972A CN201810314296.2A CN201810314296A CN108439972A CN 108439972 A CN108439972 A CN 108439972A CN 201810314296 A CN201810314296 A CN 201810314296A CN 108439972 A CN108439972 A CN 108439972A
Authority
CN
China
Prior art keywords
zno
direct current
auxiliary addition
residual voltage
varistor
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.)
Pending
Application number
CN201810314296.2A
Other languages
English (en)
Inventor
何金良
胡军
王晓强
赵锐
孟鹏飞
王�忠
冯利伟
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.)
Tsinghua University
Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Original Assignee
Tsinghua University
Datong Power Supply Co of State Grid Shanxi Electric Power 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 Tsinghua University, Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd filed Critical Tsinghua University
Priority to CN201810314296.2A priority Critical patent/CN108439972A/zh
Publication of CN108439972A publication Critical patent/CN108439972A/zh
Pending legal-status Critical Current

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
    • C04B35/453—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 zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
    • 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
    • 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
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • C04B41/515—Other specific metals
    • C04B41/5155—Aluminium
    • 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
    • C04B41/88—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/28—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/30—Apparatus or processes specially adapted for manufacturing resistors adapted for baking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/105—Varistor cores
    • H01C7/108—Metal oxide
    • H01C7/112—ZnO type
    • 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
    • C04B2235/3201—Alkali metal oxides 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
    • C04B2235/30—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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides 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
    • C04B2235/30—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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • C04B2235/3267—MnO2
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3279—Nickel oxides, nickalates, 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
    • C04B2235/30—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
    • C04B2235/3294—Antimony oxides, antimonates, antimonites or oxide forming salts thereof, indium antimonate
    • 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
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
    • 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
    • C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

一种老化性能优良的低残压压敏电阻制备方法，包括辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤。所述辅助添加浆料的成分包括Bi2O3、Sb2O3、MnO2、Co2O3、NiO、B2O3、Al(NO3)3、K2SO4、CaCO3、MgO、去离子水。其有益效果是：采用本发明方法带来的有益变化是，基本保持了直流压敏电阻的制造工艺，使得电阻片的制造周期缩短，不使用渗铋工艺，直流压敏电阻的制造工艺被简化。由于新发明在配方和工艺上均进行了改进，使得新的直流压敏电阻具有优良的特性。

Description

老化性能优良的低残压直流压敏电阻制备方法
技术领域
本发明涉及氧化锌电阻制备领域，特别是一种老化性能优良的低残压直流压敏电阻制备方法。
背景技术
氧化锌压敏电阻，因其具有较为优良的非线性特性，在限制电力系统过电压领域得到了较为广泛的应用。但是，传统的直流氧化锌压敏电阻片生产配方以及制作工艺其存在如下问题：1.在制作的过程中，要使用渗铋工艺；2.压敏电阻的生产制备周期较为长、复杂，不同生产批次的产品性能存在差异；3.电阻片的残压比较大，保护性能有待提高；4.电阻片的残压较高，已不再能够满足工业需求。5.直流非线性压敏电阻的老化特性有待改善
因此，随着产品技术等级的不断提高，对产品性能的要求也越来越高，原有的直流压敏电阻阀片已不能满足要求，急需开新型的直流氧化锌压敏电阻。
发明内容
本发明的目的是为了解决上述问题，设计了一种老化性能优良的低残压直流压敏电阻制备方法。具体设计方案为：
一种老化性能优良的低残压直流压敏电阻制备方法，包括辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤，所述辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤依次进行经过辅料配制步骤获得辅助添加浆料，所述辅助添加浆料经过混合步骤获得ZnO浆料，所述ZnO浆料经过成型步骤获得ZnO坯体，所述ZnO坯体经过介绍步骤获得ZnO陶瓷，将所述ZnO陶瓷经过磨片步骤获得压敏电阻。
所述辅料配制步骤中，
所述辅助添加浆料的成分包括Bi2O3、Sb2O3、MnO2、Co2O3、NiO、B2O3、 AI(NO3)3、K2SO4、CaCO3、MgO、去离子水，
所述辅助添加浆料的制备方法为：将Bi2O3、Sb203、MnO2、Co2O3、 NiO、B2O3、Al(NO3)3、K2SO4、CaCO3、MgO放入球磨机中获得辅助添加粉料，然后加入去离子水、结合剂、分散剂、消泡剂，混合球磨，球磨120min，
所述辅助添加浆料中各成分的质量份数/摩尔份数比为：
所述辅助添加浆料中，辅助添加粉料与去离子水的质量份数为辅助添加粉料1份、去离子水2份。
所述混料步骤中，将辅助添加浆料与ZnO混合获得ZnO粉料，再加入去离子水，混合放入超细砂磨机砂磨，砂磨60min，使所有混合原料分散均匀为止，得到混合均匀的ZnO浆料，
所述ZnO浆料中，所述ZnO粉料与加入去离子水的质量份数为ZnO粉料1 份、去离子水1份。
所述成型步骤中，
对ZnO浆料进行喷雾干燥，经喷雾干燥后的ZnO浆料含水量为1％，沉浮后使用液压压片机以及圆柱形模具，将颗粒料压片成型，获得ZnO坯体，成型压力为150MPa，保压时间3min。
所述烧结步骤中，将ZnO坯体在封闭的气氛条件下，
以200℃/h的升温速度，将烧结温度提高至400℃；
在400℃的烧结温度下，持续保温排胶5；，
将烧结温度提高至1200℃；
在1200℃的烧结温度下，保温3h，使坯体致密，获得ZnO陶瓷。
在磨片步骤中，对ZnO陶瓷进行磨片处理，并在磨片处理后在所述ZnO陶瓷的表面喷制铝电极，获得压敏电阻。
通过本发明的上述技术方案得到的老化性能优良的低残压直流压敏电阻制备方法，其有益效果是：
采用本发明方法带来的有益变化是，基本保持了直流压敏电阻的制造工艺，使得电阻片的制造周期缩短，不使用渗铋工艺，直流压敏电阻的制造工艺被简化。由于新发明在配方和工艺上均进行了改进，使得新的直流压敏电阻具有优良的特性。
具体实施方式
下面对本发明进行具体描述。
一种老化性能优良的低残压直流压敏电阻制备方法，包括辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤，所述辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤依次进行经过辅料配制步骤获得辅助添加浆料，所述辅助添加浆料经过混合步骤获得ZnO浆料，所述ZnO浆料经过成型步骤获得ZnO坯体，所述ZnO坯体经过介绍步骤获得ZnO陶瓷，将所述ZnO陶瓷经过磨片步骤获得压敏电阻。
所述辅料配制步骤中，
所述辅助添加浆料的成分包括Bi2O3、Sb2O3、MnO2、Co2O3、NiO、B2O3、 Al(NO3)3、K2SO4、CaCO3、MgO、去离子水，
所述辅助添加浆料的制备方法为：将Bi2O3、Sb2O3、MnO2、Co2O3、NiO、B2O3、Al(NO3)3、K2SO4、CaCO3、MgO放入球磨机中获得辅助添加粉料，然后加入去离子水、结合剂、分散剂、消泡剂，混合球磨，球磨120min，
所述辅助添加浆料中各成分的质量份数/摩尔份数比为：
所述辅助添加浆料中，辅助添加粉料与去离子水的质量份数为辅助添加粉料1份、去离子水2份。
所述混料步骤中，将辅助添加浆料与ZnO混合获得ZnO粉料，再加入去离子水，混合放入超细砂磨机砂磨，砂磨60min，使所有混合原料分散均匀为止，得到混合均匀的ZnO浆料，
所述ZnO浆料中，所述ZnO粉料与加入去离子水的质量份数为ZnO粉料1 份、去离子水1份。
所述成型步骤中，
对ZnO浆料进行喷雾干燥，经喷雾干燥后的ZnO浆料含水量为1％，沉浮后使用液压压片机以及圆柱形模具，将颗粒料压片成型，获得ZnO坯体，成型压力为150MPa，保压时间3min。
所述烧结步骤中，将ZnO坯体在封闭的气氛条件下，
以200℃/h的升温速度，将烧结温度提高至400℃；
在400℃的烧结温度下，持续保温排胶5；，
将烧结温度提高至1200℃；
在1200℃的烧结温度下，保温3h，使坯体致密，获得ZnO陶瓷。
在磨片步骤中，对ZnO陶瓷进行磨片处理，并在磨片处理后在所述ZnO陶瓷的表面喷制铝电极，获得压敏电阻。
实施例1：
按照以下方式配料：氧化锌125kg，氧化锑6.2kg，氧化铋6.8kg，氧化锰 0.95kg，氧化钴1.58kg，氧化亚镍1.96kg，氧化硼0.05kg，硝酸铝0.04kg，硫酸钾2g，碳酸钙10g氧化镁10g。将配好的原料，加入30kg纯水，18kg结合剂溶液，600ml分散剂，90g消泡剂，混合球磨120分钟，然后进行喷雾干燥。取造粒料进行压制成型，排胶，上高阻层，烧成，磨片，并喷制铝电极。然后进行残压测量，及老化试验。具体的数据如下：
表1电阻片的残压测量数据 电阻片规格D62
U1mA(kV) Il(μA) U10kA(kV) Ic(kA) 压比
5.15 2 8.304 9.943 1.612
5.12 1 8.432 9.956 1.647
5.34 3 8.321 10.134 1.597
5.23 3 8.354 10.342 1.677
5.17 4 8.395 9.943 1.624
注：传统D7直流电阻片其压比为1.72～1.75
表2电阻片的直流老化数据
按照本专利给出的范围配料，可以得到压比低，直流老化特性好的电阻片。
实施例2：
按照以下方式配料：氧化锌125kg，氧化锑6.2kg，氧化铋6.8kg，氧化锰 0.95kg，氧化钴1.58kg，氧化亚镍1.96kg，氧化硼0.05kg，硝酸铝0.04kg，硫酸钾2g，碳酸钙10g氧化镁15g。将配好的原料，加入30kg纯水，18kg结合剂溶液，600ml分散剂，90g消泡剂，混合球磨120分钟，然后进行喷雾干燥。取造粒料进行压制成型，排胶，上高阻层，烧成，磨片，并喷制铝电极。然后进行残压测量，及老化试验。具体的数据如下：
表1电阻片的残压测量数据 电阻片规格D62
U1mA(kV) Il(μA) U10kA(kV) Ic(kA) 压比
5.23 2 8.323 9.932 1.591
5.34 1 8.412 9.947 1.575
5.43 3 8.332 10.173 1.534
5.32 3 8.364 10.324 1.572
5.45 4 8.539 9.944 1.567
注：传统D7直流电阻片其压比为1.72～1.75
表2电阻片的直流老化数据
按照本专利给出的范围配料，可以得到压比低，直流老化特性好的电阻片。
上述技术方案仅体现了本发明技术方案的优选技术方案，本技术领域的技术人员对其中某些部分所可能做出的一些变动均体现了本发明的原理，属于本发明的保护范围之内。

Claims (6)

1.一种老化性能优良的低残压压敏电阻制备方法，包括辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤，其特征在于，所述辅料配制步骤、混料步骤、成型步骤、烧结步骤、磨片步骤依次进行经过辅料配制步骤获得辅助添加浆料，所述辅助添加浆料经过混合步骤获得ZnO浆料，所述ZnO浆料经过成型步骤获得ZnO坯体，所述ZnO坯体经过介绍步骤获得ZnO陶瓷，将所述ZnO陶瓷经过磨片步骤获得压敏电阻。
2.根据权利要求1中所述的老化性能优良的低残压直流压敏电阻制备方法，其特征在于，所述辅料配制步骤中，
所述辅助添加浆料的成分包括Bi2O3、Sb2O3、MnO2、Co2O3、NiO、B2O3、Al(NO3)3、K2SO4、CaCO3、MgO、去离子水，
所述辅助添加浆料的制备方法为：将Bi2O3、Sb2O3、MnO2、Co2O3、NiO、B2O3、Al(NO3)3、K2SO4、CaCO3、MgO放入球磨机中获得辅助添加粉料，然后加入去离子水、结合剂、分散剂、消泡剂，混合球磨，球磨120min，
所述辅助添加浆料中各成分的质量份数/摩尔份数比为：
所述辅助添加浆料中，辅助添加粉料与去离子水的质量份数为辅助添加粉料1份、去离子水2份。
3.根据权利要求1中所述的老化性能优良的低残压直流压敏电阻制备方法，其特征在于，所述混料步骤中，将辅助添加浆料与ZnO混合获得ZnO粉料，再加入去离子水，混合放入超细砂磨机砂磨，砂磨60min，使所有混合原料分散均匀为止，得到混合均匀的ZnO浆料，
所述ZnO浆料中，所述ZnO粉料与加入去离子水的质量份数为ZnO粉料1份、去离子水1份。
4.根据权利要求1中所述的老化性能优良的低残压直流压敏电阻制备方法，其特征在于，所述成型步骤中，
对ZnO浆料进行喷雾干燥，经喷雾干燥后的ZnO浆料含水量为1％，沉浮后使用液压压片机以及圆柱形模具，将颗粒料压片成型，获得ZnO坯体，
成型压力为150MPa，保压时间3min。
5.根据权利要求1中所述的老化性能优良的低残压直流压敏电阻制备方法，其特征在于，所述烧结步骤中，将ZnO坯体在封闭的气氛条件下，
以200℃/h的升温速度，将烧结温度提高至400℃；
在400℃的烧结温度下，持续保温排胶5；，
将烧结温度提高至1200℃；
在1200℃的烧结温度下，保温3h，使坯体致密，获得ZnO陶瓷。
6.根据权利要求1中所述的老化性能优良的低残压直流压敏电阻制备方法，其特征在于，在磨片步骤中，对ZnO陶瓷进行磨片处理，并在磨片处理后在所述ZnO陶瓷的表面喷制铝电极，获得压敏电阻。
CN201810314296.2A 2018-04-10 2018-04-10 老化性能优良的低残压直流压敏电阻制备方法 Pending CN108439972A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810314296.2A CN108439972A (zh) 2018-04-10 2018-04-10 老化性能优良的低残压直流压敏电阻制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810314296.2A CN108439972A (zh) 2018-04-10 2018-04-10 老化性能优良的低残压直流压敏电阻制备方法

Publications (1)

Publication Number Publication Date
CN108439972A true CN108439972A (zh) 2018-08-24

Family

ID=63199476

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810314296.2A Pending CN108439972A (zh) 2018-04-10 2018-04-10 老化性能优良的低残压直流压敏电阻制备方法

Country Status (1)

Country Link
CN (1) CN108439972A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110060829A (zh) * 2019-05-14 2019-07-26 固力发电气有限公司 一种氧化物电阻片加工工艺
CN110922056A (zh) * 2019-12-23 2020-03-27 嘉兴市瑞嘉电气有限公司 一种用于电阻片的高绝缘无机高阻釉及制备方法
CN113257506A (zh) * 2021-06-25 2021-08-13 深圳市中鹏电子有限公司 一种低电阻率的氧化锌压敏电阻及其制备方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110060829A (zh) * 2019-05-14 2019-07-26 固力发电气有限公司 一种氧化物电阻片加工工艺
CN110922056A (zh) * 2019-12-23 2020-03-27 嘉兴市瑞嘉电气有限公司 一种用于电阻片的高绝缘无机高阻釉及制备方法
CN110922056B (zh) * 2019-12-23 2022-02-25 嘉兴瑞嘉电气股份有限公司 一种用于电阻片的高绝缘无机高阻釉及制备方法
CN113257506A (zh) * 2021-06-25 2021-08-13 深圳市中鹏电子有限公司 一种低电阻率的氧化锌压敏电阻及其制备方法

Similar Documents

Publication Publication Date Title
CN108439972A (zh) 老化性能优良的低残压直流压敏电阻制备方法
CN105645948B (zh) 一种高电压梯度、低泄露电流压敏电阻陶瓷材料的制备方法
CN105622086B (zh) 制备高梯度氧化锌压敏电阻陶瓷的方法
CN103021608A (zh) 一种高梯度大容量氧化锌压敏电阻片及其制备方法
CN101613199A (zh) 一种高性能氧化锌复合陶瓷压敏电阻材料及制备方法
CN106830920A (zh) 一种低残压直流非线性压敏电阻制备方法
CN105859279A (zh) 一种制备性能优良氧化锌压敏电阻陶瓷的新型工艺方法
CN105481363B (zh) 一种大通流容量、低残压、高梯度氧化锌压敏电阻陶瓷
CN106653259A (zh) 一种老化性能优良的低残压直流压敏电阻制备方法
CN104230321A (zh) M型钙永磁铁氧体及其制备方法
CN114400121A (zh) 一种高通流密度的氧化锌电阻片的制造方法
CN103086710A (zh) 一种宽梯度范围的氧化锌压敏电阻专用瓷粉及其制备方法
CN101830694B (zh) 高纯二氧化锡电极陶瓷材料及其制备方法
CN105565801A (zh) 一种高梯度、大通流容量特高压输电系统用压敏陶瓷制备方法
CN105622087B (zh) 一种特高压输电系统用大通流容量、低残压压敏陶瓷制备方法
CN113603476B (zh) 一种多点电极氧化锌压敏陶瓷的制备方法及电化学试验
CN112341186A (zh) 一种稀土氧化物添加剂预先固溶处理的氧化锌压敏电阻制备方法
CN101154487A (zh) 一种避雷器用氧化锌非线性电阻片的制备方法
Gromov et al. Preparation of high-voltage ZnO varistor ceramics
JPS5457699A (en) Manufacturing method of voltage non-linear resistor
CN106518049A (zh) 一种提高氧化锌压敏陶瓷电压梯度的制造工艺
CN118380221A (zh) 一种氧化锌压敏电阻器及其制备方法
JPH0128481B2 (zh)
CN115490510A (zh) 一种避雷器电阻片制造方法
JPH02114603A (ja) グレーズバリスタの製造方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180824

WD01 Invention patent application deemed withdrawn after publication