CN108178637A - 一种氧化钇单晶铸造用陶瓷型芯及制备方法 - Google Patents

一种氧化钇单晶铸造用陶瓷型芯及制备方法 Download PDF

Info

Publication number
CN108178637A
CN108178637A CN201611120139.5A CN201611120139A CN108178637A CN 108178637 A CN108178637 A CN 108178637A CN 201611120139 A CN201611120139 A CN 201611120139A CN 108178637 A CN108178637 A CN 108178637A
Authority
CN
China
Prior art keywords
ceramic core
yttrium oxide
single crystal
oxide
crystal casting
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.)
Withdrawn
Application number
CN201611120139.5A
Other languages
English (en)
Inventor
吴学坤
许壮志
薛健
张明
初小葵
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.)
LIAONING FAKU COUNTY CERAMIC ENGINEERING TECHNOLOGY RESEARCH CENTER
Original Assignee
LIAONING FAKU COUNTY CERAMIC ENGINEERING TECHNOLOGY RESEARCH CENTER
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 LIAONING FAKU COUNTY CERAMIC ENGINEERING TECHNOLOGY RESEARCH CENTER filed Critical LIAONING FAKU COUNTY CERAMIC ENGINEERING TECHNOLOGY RESEARCH CENTER
Priority to CN201611120139.5A priority Critical patent/CN108178637A/zh
Publication of CN108178637A publication Critical patent/CN108178637A/zh
Withdrawn legal-status Critical Current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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • 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
    • C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
    • C04B35/505—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds based on yttrium 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
    • 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
    • C04B35/626—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
    • C04B35/63408—Polyalkenes
    • 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
    • C04B35/63496—Bituminous materials, e.g. tar, pitch
    • 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
    • C04B2235/50—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
    • C04B2235/522—Oxidic
    • C04B2235/5236—Zirconia
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6022—Injection 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Landscapes

  • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

一种氧化钇单晶铸造用陶瓷型芯及制备方法，由下述原料按重量比经配料、过筛、混合、加温、搅拌、冷却、成型、再经焙烧而成。其中，所述原料由以下成分组成，氧化钇70‑80％，氧化铝7.5‑11.5％，氧化锆纤维1‑3％,石蜡9.5‑14.5％，蜂蜡0.1‑0.2％，聚乙烯0.25‑0.35％，油酸0.4‑0.7％，硬脂酸0.5‑0.7％。本发明适合用注射成型工艺连续生产复杂形状的陶瓷型芯，制成的陶瓷型芯的工作温度最高可达1700℃，完全满足了单晶铸造对陶瓷型芯的使用要求，扩大了陶瓷型芯的使用范围。

Description

一种氧化钇单晶铸造用陶瓷型芯及制备方法
技术领域
本发明涉及一种可用于单晶铸造的陶瓷型芯，主要应用于精密铸造技术领域。
背景技术
陶瓷型芯作为形成精铸件空心内腔结构的转接件，其作用是：形成精铸件的内腔形状，并与外形模及模壳共同保证精铸件壁厚的尺寸精度。铸件浇铸完成后，通过机械或化学溶蚀将陶瓷型芯从铸件中清除。随着熔模精密铸造技术从等轴晶铸造、定向铸造发展到单晶铸造，浇注温度不断提高，对型芯性能提出了更高的要求。现有技术等轴晶铸造、定向铸造陶瓷型芯的使用温度仅为1500℃—1550℃，远不能满足1600-1650℃单晶铸造的要求。
发明内容
本发明以解决上述问题为目的，主要解决现有铸造陶瓷型芯的使用温度偏低的技术问题，而提供一种使用温度能够达到1600-1650℃，满足单晶铸造要求的陶瓷型芯。
为实现上述目的，本发明采用的技术方案是：单晶铸造用陶瓷型芯，由下述原料按重量百分比组成，其中氧化钇70-80％，氧化铝7.5-11.5％，氧化锆纤维1-3％,石蜡9.5-14.5％，蜂蜡0.1-0.2％，聚乙烯0.25-0.35％，油酸0.4-0.7％，硬脂酸0.5-0.7％。
该陶瓷型芯的制备方法如下：氧化钇、氧化铝分别过325目标准筛，取筛下部分。然后按下述比例混合：氧化钇70-80％，氧化铝7.5-11.5％，氧化锆纤维1-3％，油酸0.4-0.7％，硬脂酸0.5-0.7％混合后在105℃加热2小时制成粉料备用；石蜡9.5-14.5％，蜂蜡0.1-0.2％，聚乙烯0.25-0.35％，在120℃下混合均匀，过325目标准筛制成增塑剂备用。把混料机升温至130℃，加入配制好增塑剂，然后边搅拌边加入上述混合好的粉料，粉料全部加完后继续搅拌12小时，倒出冷却制成料锭。把上述料锭用陶瓷型芯成型机依模具制成若干形状的陶瓷型芯生坯。生坯经1210-1400℃焙烧，制得陶瓷型芯。
本发明的特点及有益效果
本发明适合用注射成型工艺连续生产复杂形状的陶瓷型芯，制成的陶瓷型芯的工作温度最高可达1700℃，完全满足了单晶铸造对陶瓷型芯的使用要求，扩大了陶瓷型芯的使用范围。
具体实施方式
实施例一
取氧化钇80％，氧化铝7.75％，氧化锆纤维1％，分别过325目标准筛，取筛下部分与硬脂酸0.6％、油酸0.7％混合，混合后在105℃加热2小时备用，取石蜡9.5％，蜂蜡0.2％，聚乙烯0.25％，在120℃下混合均匀，过325目标准筛制成增塑剂备用。把混料机升温至130℃，加入配制好增塑剂，然后边搅拌边加入上述混合好的粉料，粉料全部加完后继续搅拌12小时，倒出冷却制成料锭。
实施例二
取氧化钇70.05％，氧化铝11.5％，氧化锆纤维2％，分别过325目标准筛，取筛下部分与硬脂酸0.7％、油酸0.7％混合，混合后在105℃加热2小时备用，取石蜡14.5％，蜂蜡0.2％，聚乙烯0.35％，在120℃下混合均匀，过325目标准筛制成增塑剂备用。把混料机升温至130℃，加入配制好增塑剂，然后边搅拌边加入上述混合好的粉料，粉料全部加完后继续搅拌12小时，倒出冷却制成料锭。
实施例三
取氧化钇75.9％，氧化铝10％，氧化锆纤维3％，分别过325目标准筛，取筛下部分与硬脂酸0.3％、油酸0.5％混合，混合后在105℃加热2小时备用，取石蜡10％，蜂蜡0.25％，聚乙烯0.05％，在120℃下混合均匀，过325目标准筛制成增塑剂备用。把混料机升温至130℃，加入配制好增塑剂，然后边搅拌边加入上述混合好的粉料，粉料全部加完后继续搅拌12小时，倒出冷却制成料锭。
把上述料锭用陶瓷型芯成型机依模具制成若干形状的陶瓷型芯生坯。生坯经1210-1400℃焙烧，制得陶瓷型芯。
本发明制备的陶瓷型芯：抗弯强度>35MPa，最高使用温度1700℃，收缩率<0.5％。

Claims (5)

1.一种氧化钇单晶铸造用陶瓷型芯，其特征在于：由下述原料按重量百分比组成，其中氧化钇70-80％，氧化铝7.5-11.5％，氧化锆纤维1-3％,石蜡9.5-14.5％，蜂蜡0.1-0.2％，聚乙烯0.25-0.35％，油酸0.4-0.7％，硬脂酸0.5-0.7％。
2.如权利要求1所述的氧化钇单晶铸造用陶瓷型芯，其特征在于：由下述原料按重量百分比组成，氧化钇80％，氧化铝7.75％，氧化锆纤维1％，硬脂酸0.6％、油酸0.7％，石蜡9.5％，蜂蜡0.2％，聚乙烯0.25％。
3.如权利要求1所述的氧化钇单晶铸造用陶瓷型芯，其特征在于：由下述原料按重量百分比组成，氧化钇70.05％，氧化铝11.5％，氧化锆纤维2％，硬脂酸0.7％、油酸0.7％，石蜡14.5％，蜂蜡0.2％，聚乙烯0.35％。
4.如权利要求1所述的氧化钇单晶铸造用陶瓷型芯，其特征在于：由下述原料按重量百分比组成，氧化钇75.9％，氧化铝10％，氧化锆纤维3％，硬脂酸0.3％、油酸0.5％，石蜡10％，蜂蜡0.25％，聚乙烯0.05％。
5.制备如权利要求1至5任意一项所述的氧化钇单晶铸造用陶瓷型芯的制备方法，其特征在于:氧化钇、氧化铝分别过325目标准筛，取筛下部分,然后按下述比例混合：氧化钇70-80％，氧化铝7.5-11.5％，氧化锆纤维1-3％，油酸0.4-0.7％，硬脂酸0.5-0.7％混合后在105℃加热2小时制成粉料备用；石蜡9.5-14.5％，蜂蜡0.1-0.2％，聚乙烯0.25-0.35％，在120℃下混合均匀，过325目标准筛制成增塑剂备用,把混料机升温至130℃，加入配制好增塑剂，然后边搅拌边加入上述混合好的粉料，粉料全部加完后继续搅拌12小时，倒出冷却制成料锭,把上述料锭用陶瓷型芯成型机依模具制成若干形状的陶瓷型芯生坯,生坯经1210-1400℃焙烧，制得陶瓷型芯。
CN201611120139.5A 2016-12-08 2016-12-08 一种氧化钇单晶铸造用陶瓷型芯及制备方法 Withdrawn CN108178637A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611120139.5A CN108178637A (zh) 2016-12-08 2016-12-08 一种氧化钇单晶铸造用陶瓷型芯及制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611120139.5A CN108178637A (zh) 2016-12-08 2016-12-08 一种氧化钇单晶铸造用陶瓷型芯及制备方法

Publications (1)

Publication Number Publication Date
CN108178637A true CN108178637A (zh) 2018-06-19

Family

ID=62544701

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611120139.5A Withdrawn CN108178637A (zh) 2016-12-08 2016-12-08 一种氧化钇单晶铸造用陶瓷型芯及制备方法

Country Status (1)

Country Link
CN (1) CN108178637A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109053194A (zh) * 2018-07-18 2018-12-21 上海交通大学 定向凝固铌硅基合金空心涡轮叶片陶瓷型芯制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394933A (en) * 1992-06-19 1995-03-07 Agency Of Industrial Science & Technology Core for casting titanium and titanium alloy
US5580837A (en) * 1993-11-02 1996-12-03 Pcc Airfoils, Inc. Ceramic material for use in casting reactive metals
CN101372421A (zh) * 2008-09-27 2009-02-25 辽宁省轻工科学研究院特铸材料有限公司 单晶浇铸用氧化钇陶瓷型芯材料及其成型制备方法
CN101429023A (zh) * 2008-12-05 2009-05-13 辽宁省轻工科学研究院特铸材料有限公司 采用无机纤维复合的氧化锆陶瓷型芯材料
CN103242036A (zh) * 2012-02-14 2013-08-14 中国科学院金属研究所 一种复合陶瓷型芯制备工艺
CN104446475A (zh) * 2013-09-18 2015-03-25 辽宁省轻工科学研究院 单晶铸造用陶瓷型芯

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394933A (en) * 1992-06-19 1995-03-07 Agency Of Industrial Science & Technology Core for casting titanium and titanium alloy
US5580837A (en) * 1993-11-02 1996-12-03 Pcc Airfoils, Inc. Ceramic material for use in casting reactive metals
CN101372421A (zh) * 2008-09-27 2009-02-25 辽宁省轻工科学研究院特铸材料有限公司 单晶浇铸用氧化钇陶瓷型芯材料及其成型制备方法
CN101429023A (zh) * 2008-12-05 2009-05-13 辽宁省轻工科学研究院特铸材料有限公司 采用无机纤维复合的氧化锆陶瓷型芯材料
CN103242036A (zh) * 2012-02-14 2013-08-14 中国科学院金属研究所 一种复合陶瓷型芯制备工艺
CN104446475A (zh) * 2013-09-18 2015-03-25 辽宁省轻工科学研究院 单晶铸造用陶瓷型芯

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109053194A (zh) * 2018-07-18 2018-12-21 上海交通大学 定向凝固铌硅基合金空心涡轮叶片陶瓷型芯制备方法

Similar Documents

Publication Publication Date Title
CN105732014B (zh) 一种硅基陶瓷型芯制备方法
CN102603275B (zh) 硅基陶瓷型芯的制备方法
CN101429023A (zh) 采用无机纤维复合的氧化锆陶瓷型芯材料
CN101372421A (zh) 单晶浇铸用氧化钇陶瓷型芯材料及其成型制备方法
CN103360079A (zh) 一种空心涡轮叶片一体化陶瓷铸型的型芯型壳定制方法
CN104261804A (zh) 一种陶瓷模具的制备方法
CN107745077B (zh) 基于光固化快速成型的型芯型壳一体化石膏铸型制造方法
CN105803255B (zh) 一种高铌钛铝基增压器涡轮及其制造方法
CN1793033A (zh) 钛合金精铸用陶瓷型芯材料
CN105777114A (zh) 一种水溶性陶瓷型芯的制备方法
CN102921885A (zh) 钛、锆、镍及其合金铸件砂型铸造工艺
CN108484140A (zh) 双组份层状陶瓷型芯
CN100469731C (zh) 采用氧化铝空心球的复合氧化铝陶瓷型芯材料及成型制备工艺
CN103128227A (zh) 用于不锈钢精密铸造的型壳面层制造方法
CN102731122B (zh) 电熔锆刚玉料盆砖的生产方法
CN104692782B (zh) 一种利用废料制作陶瓷型芯的方法
CN104788085A (zh) 一种改进的氧化硅陶瓷型芯及其制备方法
CN108178637A (zh) 一种氧化钇单晶铸造用陶瓷型芯及制备方法
CN104446475A (zh) 单晶铸造用陶瓷型芯
CN104692777B (zh) 一种高气孔率陶瓷型芯的制备及其水爆脱芯方法
CN101254535B (zh) 一种浇注钢水用定径水口及其制造工艺
CN104788082A (zh) 一种改进的氧化铝陶瓷型芯及其制备方法
CN100402461C (zh) 氧化镁陶瓷型芯及其注射成型制作工艺
CN107745082A (zh) 一种热压注陶瓷型芯及其制备方法
CN104550735A (zh) 百万千瓦核电机组末级超长导叶片精铸方法

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
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20180619