KR930009956A - Manufacturing method of ceramic heating element - Google Patents

Manufacturing method of ceramic heating element Download PDF

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Publication number
KR930009956A
KR930009956A KR1019910019605A KR910019605A KR930009956A KR 930009956 A KR930009956 A KR 930009956A KR 1019910019605 A KR1019910019605 A KR 1019910019605A KR 910019605 A KR910019605 A KR 910019605A KR 930009956 A KR930009956 A KR 930009956A
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South Korea
Prior art keywords
heating element
ceramic heating
tape
solvent
alumina
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KR1019910019605A
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Korean (ko)
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KR940005079B1 (en
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이상진
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조항선
주식회사 한조세라믹
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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

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

Abstract

본 발명은 좁은 입도 범위를 가지는 알루미나 분말을 소결조제, 용매 및 분산제와 혼합하고 여기에 바인더 및 가소제를 가하여 테이프 성형을 거쳐 건조 테이프를 제조한 다음 그 위에 발열선을 인쇄한 후 동종의 테이프를 덮어 프레스로 적층한 다음 가습 및 수소 분위기하에서 소결하고 여기에 리드선을 부착하는 세라믹 발열체의 제조 방법에 관한 것으로, 스크린 인쇄시 메쉬를 조절하거나 두께를 조절함으로써 저항치를 임으로 조절할 수가 있으며, 장시간 사용시에도 발열온도에서의 변화도 적으며, 발열체의 치밀한 구조가 기인하여 장시간 안정적으로 발열이 가능하다.According to the present invention, alumina powder having a narrow particle size range is mixed with a sintering aid, a solvent and a dispersant, a binder and a plasticizer are added thereto, a tape is formed through a tape molding, and a heating tape is printed thereon, followed by pressing a cover of the same kind. The present invention relates to a method of manufacturing a ceramic heating element which is laminated with a sinter, and then sintered in a humidified and hydrogen atmosphere, and a lead wire is attached thereto. The screen can be adjusted randomly by adjusting a mesh or adjusting a thickness during screen printing. There is little change, and due to the compact structure of the heating element, it is possible to stably generate heat for a long time.

Description

세라믹 발열체의 제조 방법Manufacturing method of ceramic heating element

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (6)

세라믹 발열체를 제조하는데 있어서, 1.0-5.0㎛의 입도 범위를 가지는 알루미나 분말을 소결조제, 용매 및 분산제를 볼 밀링하여 혼합 및 분산을 하여 1차 알루미나 슬립을 제조하고, 여기에 바인더 및 가소제를 가하여 혼합하여 2차 혼합하여 2차 알루미나 슬립을 제조하고, 진공 장치를 이용하여 탈포 공정을 행하여 후속하는 성형공정에 적절한 점도를 유지하게 하고, 공지의 닥터 브레이드 장치를 이용하여 탈포 공정을 거쳐 건조 테이프를제조한 다음, 평균 입경이 0.5-1.5㎛인 텅스텐, 용매 및 바인더를 혼합하고 여기에 1-6wt%의 SiO2를 가하여 혼합해서 텅스텐 페이스트를 제조하고, 이 페이스트를 상기 건조 테이프에 30-70㎛의 두께 및 200-300 메쉬의 스크린을 이용하여 원하는 저항값에 따라 인쇄한 후 상기의 동종의 테이프를 덮어 프레스로 적층한 다음, 가습 및 수소 분위기하에서 소결하고 여기에 리드선을 부착하는 것을 특징으로 하는 세라믹 발열체의 제조방법.In preparing a ceramic heating element, alumina powder having a particle size range of 1.0-5.0 μm is mixed by ball milling of a sintering aid, a solvent, and a dispersant to prepare a primary alumina slip, and a binder and a plasticizer are added thereto and mixed. To prepare a secondary alumina slip, and then to perform a defoaming process using a vacuum apparatus to maintain a suitable viscosity for the subsequent molding process, and to produce a dry tape through a defoaming process using a known doctor braid apparatus Then, tungsten, a solvent and a binder having an average particle diameter of 0.5-1.5 μm were mixed and 1-6 wt% of SiO 2 was added thereto to prepare a tungsten paste, and the paste was placed on the dry tape of 30-70 μm. After printing according to the desired resistance value using a screen of thickness and 200-300 mesh, the same kind of tape is covered and laminated by press, A method for producing a ceramic heating element, characterized by sintering in a humidified and hydrogen atmosphere and attaching a lead wire thereto. 제1항에 있어서, 상기 1차 알루미나 슬립을 제조하는데 상기 용매가 건조 고체량에 대하여 증량%로 에틸알콜 10-20%, 이소프로필 알콜10-20%, n-부틸알콜5-15% 및 톨루엔 5-16%이고, 상기 소결조제가 알루미나양에 대하여 중량%로 MgO 0.5-2%, CaO 0.5-3% 및 SiO21-5%이고, 상기 분산제가 건조 고체량에 대하여 중량%로 맨하탄 오일 또는 세로졸 0.2-1% 및 폴리비닐 부티랄(PVB)0.2-1%인 것을 특징으로 하는 세라믹 발열체의 제조방법.The method of claim 1, wherein the primary alumina slip is prepared in the solvent is increased in percent by weight with respect to the amount of dry solids 10-20% ethyl alcohol, 10-20% isopropyl alcohol, 5-15% n-butyl alcohol and toluene 5-16%, the sintering aid is MgO 0.5-2%, CaO 0.5-3% and SiO 2 1-5% by weight relative to the amount of alumina, the dispersant is Manhattan% by weight based on the amount of dry solids Or 0.2-1% of cerazole and 0.2-1% of polyvinyl butyral (PVB). 제1항에 있어서, 상기 2차 알루미나 슬립에 첨가되는 바인더가 건조 고체량에 대하여 중량%로 PVB3-7%, 가소제가 폴리에틸렌 글리콜(PEG)2-3% 및 n-브틸 프탈레이트 2-3%인 것을 특징으로 하는 세라믹 발열체의 제조방법.The method of claim 1, wherein the binder added to the secondary alumina slip is PVB3-7% by weight relative to the dry solids amount, the plasticizer is polyethylene glycol (PEG) 2-3% and n-butyl phthalate 2-3% Method for producing a ceramic heating element, characterized in that. 제1항에 있어서, 상기 알루미나 테이프의 두께가 0.5-1mm인 경우 탈포 공정후의 점도가 15000-20000cps인 것을 특징으로 하는 세라믹 발열체의 제조방법.The method of manufacturing a ceramic heating element according to claim 1, wherein when the thickness of the alumina tape is 0.5-1mm, the viscosity after the defoaming process is 15000-20000 cps. 세라믹 발열체를 제조하는데 있어서, 1.0-5.0㎛의 입도 범위를 가지는 알루미나 부나말에 제1항 내지 제4항의 어느 한항의 상기 테이프 형태의 것과 동종 및 동량의 소결조제 그리고 물을 용매로 사용하여 볼밀링한 후완전 건조시킨다음, 여기에 바인더 및 가소제로 건조 분말에 대해서 중량%로 카르복실 에틸 셀룰로오즈(CMC)2-4%, 메틸셀룰로오즈(MC)1-3%, 폴리에틸렌 글리콜 1-3% 및 글리세린 2-4%을 가하고 그리고 물을 용매로 혼합, 건조하여 적당 수분량을 가진 소자를 제조한 후, 숙성한 다음 압출 성형기를 이용하여 성형을 거쳐 봉 형태로 제조한 다음, 평균 입경이 0.5-1.5㎛인 텅스텐, 용매 및 바인더를 혼합하고 여기에 1-6wt%의 SiO2를 가하여 혼합해서 텅스텐 페이스트를 제조하고, 이 페이스트를 전술한 건조 테이프에 30-7㎛의 두께 및 200-300메쉬의 스크린을 이용하여 원하는 저항값에 따라 인쇄한 후 이 테이프를 상기 봉에 액상 바인더, 바람직하기로는 농도 5wt%의 폴리 비닐 알콜(PVA)용액을 이용하여 감고 건조시키고, 열간 정수압 공정을 거친 다음, 가습 및 수소 분위기하에서 소결하고 여기에 리드선을 부착하는 것을 특징으로 하는 세라믹 발열체의 제조방법.In preparing a ceramic heating element, ball milling using an alumina bunamal having a particle size range of 1.0-5.0 μm using the same or the same amount of sintering aid and water as the solvent of any one of claims 1 to 4 After complete drying, it is added here as binders and plasticizers by weight to dry weight carboxyl ethyl cellulose (CMC) 2-4%, methylcellulose (MC) 1-3%, polyethylene glycol 1-3% and glycerin 2-4% was added, and water was mixed with a solvent and dried to prepare a device having an appropriate moisture content, and then aged and manufactured through a extrusion molding machine to form a rod, and then an average particle diameter of 0.5-1.5 μm. of tungsten, the solvent and the mixture is mixed and added and SiO 2 of 1-6wt% herein and producing a tungsten paste, a screen with a thickness of 200 to 300 mesh and the 30-7㎛ in a dry tape above the paste binder After printing according to the desired resistance value, the tape was wound on the rod using a liquid binder, preferably 5 wt% polyvinyl alcohol (PVA) solution, dried and subjected to a hot hydrostatic pressure process, followed by humidification and hydrogen. A method for producing a ceramic heating element, which is sintered in an atmosphere and a lead wire is attached thereto. 제5항에 있어서, 상기의 열간 정수압 공정이 상기 발열체를 고무로 만든 용기에 넣고 입구를 봉하고 진공 펌프를 통하여 고무 용기내의 공기를 완전히 제거한 다음 약80℃의 더운 물이 들어있는 몰드에 넣어 약100kg/㎤의 압력으로 5-15분간 유지시키는 것을 구성됨을 특징으로 하는 세라믹 발열체의 제조방법.The hot hydrostatic pressure process according to claim 5, wherein the hot hydrostatic process is carried out by placing the heating element in a rubber-made container, sealing the inlet, completely removing air in the rubber container through a vacuum pump, and then putting in a mold containing about 80 ° C of hot water. A method for producing a ceramic heating element, characterized in that it is configured to hold for 5-15 minutes at a pressure of / cm 3. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910019605A 1991-11-05 1991-11-05 Process for producing of ceramic a heating element KR940005079B1 (en)

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KR930009956A true KR930009956A (en) 1993-06-21
KR940005079B1 KR940005079B1 (en) 1994-06-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100420930B1 (en) * 2001-05-04 2004-03-02 한국과학기술연구원 Aqueous ceramic slurry using pvp and gelatin as a binding agent and method for producing a ceramic tape using them
WO2012087021A2 (en) * 2010-12-22 2012-06-28 (주)존인피니티 Method for manufacturing a heat-dissipating plate of a ceramic heater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112979347B (en) * 2021-03-01 2022-11-01 江苏省宜兴电子器件总厂有限公司 HTCC (high temperature continuous printing) plane printing slurry and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100420930B1 (en) * 2001-05-04 2004-03-02 한국과학기술연구원 Aqueous ceramic slurry using pvp and gelatin as a binding agent and method for producing a ceramic tape using them
WO2012087021A2 (en) * 2010-12-22 2012-06-28 (주)존인피니티 Method for manufacturing a heat-dissipating plate of a ceramic heater
WO2012087021A3 (en) * 2010-12-22 2012-08-30 (주)존인피니티 Method for manufacturing a heat-dissipating plate of a ceramic heater

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