JPS6032281A - Method of producing positive temperature coefficient porcelain heater - Google Patents
Method of producing positive temperature coefficient porcelain heaterInfo
- Publication number
- JPS6032281A JPS6032281A JP14016683A JP14016683A JPS6032281A JP S6032281 A JPS6032281 A JP S6032281A JP 14016683 A JP14016683 A JP 14016683A JP 14016683 A JP14016683 A JP 14016683A JP S6032281 A JPS6032281 A JP S6032281A
- Authority
- JP
- Japan
- Prior art keywords
- fine particles
- porcelain
- heating element
- positive characteristic
- particles
- 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
Links
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔技術分野〕
この発明は正特性磁器組成物具体的にはり１！湿発熱体
を構成する゛材料として有効な正特性磁’ｌ＋ｎ組成物
に関する。[Detailed Description of the Invention] [Technical Field] The present invention relates to a positive characteristic porcelain composition, specifically a beam 1! The present invention relates to a positive characteristic magnetic composition effective as a material constituting a wet heating element.
〔１！！景技術〕
正特性磁器として周知のたとえばチタン酸バリウムは通
気孔を設けた各種構造に賦形され、各種のヒータとして
利用されている。このヒータの利点はニクロム線の如き
熱電材料と比べると比抵抗の変化にもかかわらず定温発
熱性を有する点にある。しかしながら定温発熱が維持さ
れる比抵抗の変化爪が小さく、シたがってヒータとして
実用に供するにはオーミックな性質を広範囲で保持する
必要がある。このオーミック性をｆ１与するために正特
性磁器粉末と粒重性粉末とバインダーを組合わせたのが
知られているがチタン酸バリウムの粒子間の結合はオー
ミック性に欠ける。[1! ! BACKGROUND OF THE INVENTION For example, barium titanate, which is well known as positive characteristic porcelain, is formed into various structures with ventilation holes and used as various heaters. The advantage of this heater, compared to thermoelectric materials such as nichrome wire, is that it can generate heat at a constant temperature despite changes in resistivity. However, the change in resistivity required to maintain heat generation at a constant temperature is small, and therefore, for practical use as a heater, it is necessary to maintain ohmic properties over a wide range. It is known that a positive characteristic porcelain powder, grain weight powder, and a binder are combined in order to impart this ohmic property f1, but the bond between particles of barium titanate lacks ohmic property.
［発明の目的〕
この発明は以上の実情に鑑みてなされたもので定温発熱
性を維持する抵抗変化の増大をはかった安全なヒータを
４’：’ｆ成する正特性磁器発熱体の製法を提供するも
のである。[Purpose of the Invention] This invention has been made in view of the above-mentioned circumstances, and provides a method for manufacturing a positive characteristic porcelain heating element that creates a safe heater with an increased resistance change that maintains constant temperature heating properties. This is what we provide.
この発明はニッケル１挨で被ｖ（シこ市特°ｌｉ：磁器
久″ｙ結体の微粒子と導電１１：微粒子とバインダとを
含む組成物を絶縁基板に塗布した後にヅ、ｌ’ａ ｆＪ
りすることを特徴とする正１テ性Ｒハ：：Ｉ発；Ｌ〜ト
ドの製法をＪチｊ供するものである。This invention is characterized in that after a composition containing fine particles of porcelain aggregates and conductive particles coated with nickel powder and a binder is coated on an insulating substrate.
This article provides a method for producing positive 1-te property R, which is characterized by the following:
以下、この発明を具ｆ（り＋’＋Ｊに説Ｉ）Ｊ］す７乙
。Hereinafter, this invention will be described.
正？、＋１′性ｆｌ！； ’ｉ：！焼結俸とし乙は代表
的なチ、タンｉＮ、Ｑ ／＜リウムを例示することがで
きＺ）。このｉ）；け′７−Ｐにニッケル膜を形１配す
る。ニッケル化−ｙ＆またとえに力！（由。Correct? , +1′ sex fl! ;'i:! Typical examples of sintered metals include Ti, Tan, and Q/<Rium. A nickel film is placed on this i); gate '7-P. Nickelization - Power to y & Mamana! (Yu.
解メッキ法にＪ、り形成される。７１大粒子のね径な；
Ｙ絶縁基板に塗布して造１１１．λする点で平均粒径は
Ｉ４９．ｔｃ以下が好ましく、又無１１マ、ＰＪ’ｌ！
メツキのｌｉ’ｉ’ｉｏ）液のｕ ７％を防いでメッキ
のコントロールを（１“Ｖ易にづる意ｉ、！１１：で５
ｐ以上が好ましい。J is formed by the deplating method. 71 large particle diameter;
111. Made by coating on Y insulating substrate. The average particle size at the point λ is I49. tc or less is preferable, and no 11 ma, PJ'l!
li'i'io of plating) Prevent u 7% of the liquid and control plating (1" V easy meaning i, ! 11: 5
It is preferably p or more.
次に導電性微粒子は電極間を継いで導通性をイ］与する
もので、その添加ＲＨＪ、バインダ爪との関係も深い。Next, the conductive fine particles connect between the electrodes to provide conductivity, and are closely related to the addition of RHJ and the binder claw.
粒径が正特性磁器焼結体の微粒子よりも大きいと正特性
が減少し、ヒータとしての実用性に乏しくなる。又その
配合量が増大しても同様の結果になる。この導電性微粒
子としてＱまチタン酢バリウムの如き正特性磁器よりも
抵抗の小さいＮｉの如き金属系微粒子の外、ＷＣ，Ｓ
ｉ Ｃ，’Ｉ″ｉＣ。If the particle size is larger than the fine particles of the positive characteristic porcelain sintered body, the positive characteristic decreases, making it impractical as a heater. Moreover, even if the amount added is increased, similar results will be obtained. These conductive fine particles include metal fine particles such as Ni, which has a lower resistance than positive characteristic porcelain such as Q, barium titanium acetate, WC, S
i C,'I''iC.
−Ｉ’ ｉ Ｉ３２ 、 Ｃｒ Ｂ ２１７）如き非金
属”Ａ Ｗｆｉ粒子が川（ρられる。そして総じて配合
比につい°Ｃ述べると金属系微粒子の場合は正特性磁器
焼結体の微粒子に対して２〜６０重量％、非金属系微粒
子の喝合し１１〜４５重量％が適当である。-I' i I32, Cr B 217) non-metallic "A Wfi" particles are treated with a river (rho).In general, when talking about the compounding ratio, in the case of metallic fine particles, the ratio of 2 to the fine particles of a positive characteristic porcelain sintered body is Appropriate amounts are 60% by weight and 11% to 45% by weight of the nonmetallic fine particles.
次にバインダについて述べるとこのバインダを選定する
根拠は特に正特性磁器発熱体の動作湿度に応じた耐熱性
が要求される。したがってたとえはガラス７リツトコロ
イダルシリカ、エチルシリケートの加水分解生成物、ア
ルミナセメント、シリコン樹脂などから適宜選ばれる。Next, regarding the binder, the basis for selecting this binder is that heat resistance corresponding to the operating humidity of the PTC porcelain heating element is particularly required. Therefore, suitable examples may be selected from glass 7-lit colloidal silica, hydrolyzed products of ethyl silicate, alumina cement, silicone resins, and the like.
このバインダーの配合量については全微粒子Ｌ”ｆに対
し５７（’［ｊ只％〜６０爪ｈ１％が適当である。すな
わち５爪ＪｊＩ％に達しない範囲では強い膜が形成でき
ず、６０ｐｔ：量％を越えた範囲では粒子間の距離が大
きく電気抵抗が高くなって実用性に欠０る。The appropriate amount of this binder is 57% to 60% to the total fine particles L"f. In other words, if the amount does not reach 5%, a strong film cannot be formed, and 60pt: If the amount exceeds this range, the distance between the particles becomes large and the electrical resistance becomes high, making it impractical.
以」二の如き成分を混合した組成物を絶縁ｈｋ板に塗布
し、これを焼イ４けによつ”Ｃ硬化させ正特性磁器発ψ
゛・ｔ１トがイ１Ｆられる。すなわち、この発明の１ヤ
徴はニッケル膜で被１’ルた正特′ｌにｌ：ｒ：！ｉ器
焼結体の微粒子と導゛ｊｌ’ｊ＋性ｐ１粒子とはバイン
ダによって絶縁基板に造形゛ｔされ、これを焼刊けする
ことにより初ｄ）てメーミンク性か増’、’＋！ｌｉさ
れるのである。ここで將Ｉ経基板ｆｒｅｔ ｌ？Ｕ化し
た１１：、特性磁器の抵１″ノ１．値との関係で選目°
れる。たとえなりフ゛ルミプ゛ノ古板なとがＪ’ｌ’
ＪＴ４さ」する。A composition obtained by mixing the following components is applied to an insulating hk board, and the mixture is hardened by baking for 4 digits to produce positive characteristic porcelain.
゛・t1 point is set to 1F. That is, the first feature of the present invention is that it is coated with a nickel film. The fine particles and conductivity p1 particles of the i-type sintered body are formed on an insulating substrate using a binder, and by printing this, the conductivity increases. They will be lied to. Here is the board fret l? U-shaped 11: Selected in relation to the resistance 1" value of the characteristic porcelain.
It will be done. For example, the old board of Filmipp is J'l'
JT4.
又焼（’Ｊ’ ＆団特にバインダーの硬トパ二件で左右
さｉ【るもので眉にその他の要囚番」すい。Matayaki ('J'& Group, especially the binder's hard toppers, left and right, and the eyebrows are other prisoners' number).
以下、このう１シ明の実施例を示す。A further example of this will be shown below.
実施例１
チタン１狭バリウムか１Ｃ１結体のｆ！’！ｄ ｌ！ｊ
ｆ、ｌ欣の様にし°Ｃｔｉ−） ブこ。 １３ ａ
ｌ ’ｌ’ ｉ ０． ９ ９ ８ Ｎ ｂ Ｏ，ＯＯ
２０３ｆｌ、る組成になるよう１３ ａ Ｃ０３（、ｊ
３’ｉｊ化ｑ′工業←す製）とアナターゼ型Ｔ ｉ ０
２ （古河鉱業Ｃ）製）を配合した。なおＮｂはｌ’
ｉ ０２中に不純物として含まれるもので充当した。配
合物をメノウ製ポット中で２４時時間式粉砕し、取り出
し後、バラ１ｍ取り出し１５０℃で充分乾燥した。次に
乾＋Ｖ８物を１１５０℃で１時間仮焼した。（Ｍ焼物を
２１ ｏ ｎ ／ｃＪの圧力で成形し昇ｆＭ３００℃／
ａシ、降湿２００℃／１１ｒの条件で１８２０℃で２時
間焼結した。Example 1 f! of titanium 1 narrow barium or 1C1 solids! '! d l! j
f, l 欣 (°Cti-) Buko. 13a
l 'l' i 0. 9 9 8 Nb O,OO
13a C03(,j
3'ij q' Kogyo ←) and anatase type T i 0
2 (manufactured by Furukawa Mining Co., Ltd.)) was blended. Note that Nb is l'
It was used as an impurity contained in i02. The blend was pulverized for 24 hours in an agate pot, and after taking out, 1 m of pieces were taken out and thoroughly dried at 150°C. Next, the dry+V8 product was calcined at 1150° C. for 1 hour. (The M pottery is molded at a pressure of 21 o n /cJ and the temperature rises to fM300℃/
Sintering was performed at 1820° C. for 2 hours under conditions of humidity 200° C./11 hours.
次にこの焼結体から次の様にし”Ｃ侃粒子を７（ｔた。Next, from this sintered body, 7 (t) of "C" particles were obtained as follows.
すなわち焼結体を超硬鉄製ポット中でわ）砕［２、フル
イで４６〜１４９ Ｐ （１００〜２００ｍｅｓｌｘ）
の微粒子を作った。That is, the sintered body was crushed in a cemented carbide pot [2.
fine particles were created.
次にこの微粒子を水洗し次の工程条件でニッケル膜を形
成した。Next, the fine particles were washed with water, and a nickel film was formed under the following process conditions.
（脱 脂）←アセトンを用い高周波洗浄（２分）↓
（水 洗）
↓
（ｒ゛ 洗） ４ｉｆｆ）ｉＫＡｒＦ’４００＋ｍ！／
７ ；’ｉ：、ｔ’ｔ ｌｉ
（水 ｔｌ、）
↓ 」二利］二？ｔシ（Ｈ４）靭（
↓ 上相］−業６１ン’ｊｊｌｌ
（Ｎｉ メッキ）＜−ＩＳＥＬ、ニツウ清↓ ６５’Ｃ
１０分
（水 洗）
↓
（風 乾）
以上でイＭたニッケル膜を有するチタン酸バリウム焼結
体の微粒子１００ ｆ％平均粒径５μの５ｉＣ３０１、
エチルシリケートを加水分解した生成物（ＨＡＳ−１０
、日本コルコート社製）をバインダとし、これを２０愈
のＶ１１１合で混合し組成物とした。ぞしてさらにこれ
をＩ Ｏ（ｌメツシュのスクリーンを用いて５０μの厚
さでアルミナ基イｕに塗布し３５０℃、１０分加熱し発
熱体とした。(Degreasing) ← High frequency cleaning using acetone (2 minutes) ↓ (Water washing) ↓ (r゛ washing) 4iff) iKArF'400+m! /
7 ;'i:, t't li (water tl,) ↓ ``Two interest] Two? tshi (H4) toughness (↓ upper phase) - industry 61n'jjll (Ni plating) <- ISEL, Nitsu Ki ↓ 65'C
10 minutes (washing with water) ↓ (air drying) Fine particles of barium titanate sintered body having a nickel film 100 f% 5iC301 with an average particle size of 5μ,
Product of hydrolysis of ethyl silicate (HAS-10
(manufactured by Nippon Colcoat Co., Ltd.) was used as a binder, and this was mixed with 20 liters of V111 to prepare a composition. Then, this was further coated on an alumina base plate to a thickness of 50 μm using an IO mesh screen and heated at 350° C. for 10 minutes to form a heating element.
実施例２
実施例１で作製したニッケルＨｋを有するチタン酸バリ
ウム焼結体の微粒子１０ （ｌ ｆ平均粒径５ ／Ｌの
Ｎｉ３ｊ’、コロイダルシリカ７１の割合で１〕召今し
組成物とした。Example 2 Fine particles 10 of the barium titanate sintered body having nickel Hk produced in Example 1 (Ni3j' with an average particle size of 5/L, colloidal silica 71 at a ratio of 1) were prepared into a prepared composition. .
この組成物を鉄製ホーローノル板に同様のスクリーンを
用いて５０μのＪＩＪｆさて塗布し３（）０℃、１０分
加熱体とした。This composition was coated with a JIJF thickness of 50 μm on an iron hollow plate using a similar screen and heated at 3()0° C. for 10 minutes.
実り１九例３
実施例１のニッケル膜を有するチタン酸バリウム焼結体
の微粒子１００ｒ％平均粒径２ＩＬの〜°Ｖ″Ｃ２ｔ、
ホウケイ酸系ガラスフリット５２５爪垣％メチルセルロ
ース水溶液３０１の割合で混介し組成物とした。この４
（（成物をアルミナ三ｙ１１．：板に同様のスクリーン
を用いで５０μの１がさにＱｊ布し、乾＋Ｖ＝後８０
ｏ’ＣＩ ０９ 加熱シ、Ｊ５ ｉ’彷にとＩ／ ／Ｃ
０比１例１
実扉１イ’：Ｉ １ （ＩＴＪ ＋、ＨＩ造と異ンする
点の・す゛て２示すとンｉ１”ｌ’ｉｊ、 ｉ：ｉミＶ
：τ・粒子のＳｉＣをｌｉ；ｉ’：いた絹１，１λ物を
用い、他ＱＪ−リＪ同一・の＜ｒｒ ｆｌでイＪ゛つた
〇
比ｆｙ−何１２
Ｗ ９ｍ ［’ｌ １ ニ！：； イＴ−丈！′ｊＩ
ｌ（ｌ （ト（１） Ｗ＋、’オ１ン子ヲイ’） ルｌ
１ｒｌ ノ１（ｒ；結イ・］：をもつで正４゛ｒ ｔ−
’ｌ Ｗ器発熱什とした。・」―記の態仔でｕ・１！造
したうａ熱体の化１丁性Ｂｒ器の表面にＩ ｘｉ −Ｇ
ａ合金をこすりつｒＪ又↑１１．極を彫りｊもし比ｊ
バ、抗トｉｙｌ’ＨＵ トラｉｌＩ！Ｉ ”６１ Ｌ
ｆｃ Ｊｌｉ７果ｌ；ｌ （Ｄとおり几′Ｊ、ｌ【ｊわ
Ｃ変化が増大を１−′＃、定ｒ：＋５ ？ｉごｐ＋、
ｉ：’ｌミを光１重し、安全性・にもイタ゛れるもので
あった。Fruition 19 Example 3 Fine particles of barium titanate sintered body with nickel film of Example 1 100r% average particle size 2IL ~°V''C2t,
A composition was prepared by mixing borosilicate glass frit in a proportion of 525% and 301% methylcellulose aqueous solution. This 4
(The product was coated with alumina 3 y 11.: Using a similar screen on the plate, a 50μ 1 layer was coated with a Qj cloth, and after drying + V = 80
o'CI 09 Heating, J5 i' Aki and I/ /C
0 ratio 1 example 1 Actual door 1 i': I 1 (ITJ +, all 2 points that are different from HI construction) i1''l'ij, i:i mi V
:τ・particles of SiC li;i': Using the silk 1,1λ material, the ratio fy-what 12 W 9m ['l 1 Ni ! :; Lee T-length! 'jI
l(l (To(1) W+, 'O1nkowoi') l
1rl ノ1 (r; い・]: is positive 4゛r t-
'l I used it as a heating device.・” - u・1 in the state of the record! I xi -G on the surface of the manufactured a-heating body
a Rub the alloy r J again ↑11. carve the pole j if ratio j
Ba, anti-toiyl'HU tryilI! I”61 L
fc Jli7effectl;l (D as 几'J,l[jwaC change increases 1-'#, constant r: +5 ?igop+,
I: The light was overlaid with the light and the safety was also a problem.
〔発署ｑ様ｌ、 、４（＋、 ）
この）１シ明は以」―の如く定温発熱性をＭｉｌｌ ｒ
：ｊする抵抗変化１１（の増大オーミック性の高い１稍
性１１’ｔ ｙ？＋＋発熱体を得ることができるのであ
る。[Mr. Q l, , 4 (+, ) This) 1 picture is as follows.
It is possible to obtain a monomorphic 11't y?++ heating element with a high ohmic property due to the increased resistance change 11 (:j).
図はこの発明の実施例及び比較例で得た正特性磁器発熱
体−の比抵抗一温度特性を示すグラフである。
特許出願人
松下電工株式会社
代理人弁理士 竹 元 敏 丸
（ほか２名）
手続、を市ｉＥ凹：
＋１ｒ（ｆｌ＋５９年 ２月 ８目
明１１．＋５８年特許願 第 １４０１６６’ｉ７２、
発明の名称
正’Ｉ沖１磁器発ｉ！林の製法
３、補正をする４ｆ
事件との関係 ｚ１１許出願人
住 所 人＋ｕｒｒ門真市大字門、１ｔｏ４ｅ番地名
称 （５１１３）松下電工株式会”社代表者 小 林
郁
４、代理人
住 所 大阪府門真市大字門真１０４８番地７．１．ｉ
ｌｉ正の内容
別紙の通り
補正の内容
（１）特許請求の範囲明の欄を次の通り訂正する「（１
）ニッケル膜で被覆した正特性磁器焼結体の微粒子と導
電性微粒子とバインダーとを含む組成物を絶縁基板に塗
布した後に焼付りすることを特徴とする特性磁器発熱体
の製法。
（２）導電性微粒子が金属系微粒子である特許請求の範
囲第１項記載の正特性磁器発熱体の製法（３）金属系微
粒子が正特性磁器焼結体の６（粒子とに対し２〜６０重
量％である特許請求の範囲第２項記載の正特性磁器発熱
体の製法。
（４）導電性微粒子が非金属系微粒子である特許請求の
範囲第１項記載の正特性磁器発熱体の製法。
（５）非金属系微粒子が正特性磁器焼結体の微粒子に対
し１〜４５重景％である特許請求の範囲第４項記載の正
特性磁器発熱体の製法。
（２）発明の詳細な説明の欄で明細再２頁１２行乃至１
５行の１゛シかしながら一＝−−−−−−−−−必要が
ある。」を［正特性磁器の薄型化、大面苗化、軽量化、
高発熱化、（氏：Ｉスト化、及び強度のアップを狙うに
磐厚膜化が必要である。定温発ｑ’、ｊ５体として適度
の抵抗値をもち、かつ正特性をもたせるには正特性磁器
のたとえばチタン酸バリウムの粒子間の結合はオーミッ
クである必要がある。」に８１正する。
（３）発明のｎ′「、細な説明の欄で明細書３頁１９行
の「導電性微粒子は電極間を１ｖｔｉいで」を「導電性
微粒子はニッケル膜を形成したチタン酸バリウムの粒子
間を継いで」に訂正する。
（４）発明の詳細な説明の欄で明細書４頁５行の「抵抗
の小さい」を「抵抗の小さい」に削正する（５）発明の
詳ｆｆ１ｌな説明の欄で明細７１．５頁１２行の「バイ
ンダーの硬紐条件」を１バイングーの硬化条件」に訂正
する。
（６）発明の詳細な説明の欄で明細書６頁５行の「３０
０°Ｃ／ ｃ＋Ａ Ｊをｒ３００”Ｃ／）ｒｒ Ｊに訂
正す（７）発明の詳細な説明の欄で明細書８頁５行の「
２０愈」をｒ２０ｇＪに訂正する。
（８）発明の詳細な説明の欄で明細書８頁１８行の［実
施例１のニッケル膜をイ１するチタン酸バリウム焼結体
１００ｇＪを「実施例１で作製した磁器粒子をフルイで
分級し４６〜５μの粉体を造り、これに同様のニッケル
処理を施した微粒子１００ｇＪに訂正する。
以上The figure is a graph showing the resistivity-temperature characteristics of positive characteristic ceramic heating elements obtained in Examples and Comparative Examples of the present invention. Patent applicant Matsushita Electric Works Co., Ltd. Representative Patent Attorney Toshimaru Takemoto (and 2 others) Procedures: +1r (fl+February 1959, February 8th, 11.+1958 Patent Application No. 140166'i72,
The name of the invention is from porcelain! Hayashi's manufacturing method 3, amendment 4f Relationship to the case z11 Permit applicant address person + urr Kadoma City Oazamon, 1to4e address name
(5113) Matsushita Electric Works Co., Ltd. Representative Kobayashi
Iku 4, agent address: 1048 Kadoma, Kadoma City, Osaka Prefecture 7.1. i
li Correct contents Contents of the amendment as shown in the attached sheet (1) The scope of claims column is corrected as follows: “(1)
) A method for manufacturing a characteristic porcelain heating element, characterized in that a composition containing fine particles of a positive characteristic porcelain sintered body coated with a nickel film, conductive fine particles, and a binder is applied to an insulating substrate and then baked. (2) A method for producing a positive characteristic porcelain heating element according to claim 1, wherein the conductive fine particles are metal-based fine particles. 60% by weight of a positive characteristic porcelain heating element according to claim 2. (4) A method for manufacturing a positive characteristic porcelain heating element according to claim 1, wherein the conductive fine particles are non-metallic fine particles. Manufacturing method. (5) A method for manufacturing a positive characteristic porcelain heating element according to claim 4, wherein the nonmetallic fine particles account for 1 to 45 weight percent of the fine particles of the positive characteristic porcelain sintered body. In the detailed explanation column, repeat the details from page 2, lines 12 to 1.
It is necessary to have 1 in every 5 lines. "Thinner, larger seedlings, lighter weight, positive characteristic porcelain,
It is necessary to make the film extremely thick in order to increase heat generation, (Mr. I strike), and increase strength. The bond between particles of barium titanate, for example, in characteristic porcelain must be ohmic.'' (3) Invention n', in the Detailed Description section, page 3, line 19 of the specification, ``Conductive (4) In the Detailed Description of the Invention column, the statement "Conductive fine particles are placed between the electrodes at 1vti" is corrected to "The conductive fine particles are placed between the barium titanate particles on which a nickel film is formed." (5) In the Detailed Description of the Invention section, change the "Hard Binder String Conditions" in Line 12 of page 71.5 to the curing conditions of 1 binder. (6) In the Detailed Description of the Invention column, see “30 on page 6, line 5 of the specification.
0°C/ c+A J to r300”C/)rr J (7) In the Detailed Description of the Invention column, read “
Correct ``20 Yu'' to r20gJ. (8) In the Detailed Description of the Invention column, on page 8, line 18 of the specification, write 100gJ of the barium titanate sintered body for preparing the nickel film of Example 1. Then, make a powder of 46 to 5 μm, and correct it to 100 gJ of fine particles by applying the same nickel treatment.
Claims (5)
子七導電性微粒子とバインダとを含む組成物を絶縁基板
に塗布した後に焼（＝Ｊけすることを特徴とする正ｑ？
ｉ性磁器発熱体の製法。(1) Particles of a porcelain sintered body with positive characteristics coated with a nickel film A composition containing conductive fine particles and a binder is coated on an insulating substrate and then fired.
A method for producing an i-type porcelain heating element.
請求のηｌｉｊ ｔＪＪｊ第１頂記ボ・ミの正特性磁器
発熱体、の製法。(2) A method for producing a positive characteristic porcelain heating element according to the patent claim, wherein the conductive grains are metal: ii', fine particles.
’；ｌ子に対し２〜６０重量％である特ｉ１１’ 請求
の範囲第２項記載の正特性磁器発熱体の製法。(3) F,' 1 of the a1 sintered body in which the metal-based fine particles have positive characteristics.
2 to 60% by weight based on the weight of the lubricant.The method for producing a positive characteristic porcelain heating element according to claim 2.
である時ｉ（′１請求の範囲第１項記載の正特性磁器発
熱体の製法。 正特性磁器組成物。(4) Lead 1 [When the carious characteristic particles are non-metallic particles, i ('1) The method for producing a positive characteristic porcelain heating element according to claim 1. Positive characteristic porcelain composition .
に対し１〜４５重ｆｌｉ％であるＱ、７Ｒ’Ｆ請求の範
囲第４項記載の正特性θン器発熱体の製法。(5) A method for producing a positive characteristic θ-heating element according to claim 4, wherein the nonmetallic fine particles are 1 to 45 weight percent of the fine particles of positive characteristic porcelain sintered A4. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14016683A JPS6032281A (en) | 1983-07-31 | 1983-07-31 | Method of producing positive temperature coefficient porcelain heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14016683A JPS6032281A (en) | 1983-07-31 | 1983-07-31 | Method of producing positive temperature coefficient porcelain heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032281A true JPS6032281A (en) | 1985-02-19 |
Family
ID=15262413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14016683A Pending JPS6032281A (en) | 1983-07-31 | 1983-07-31 | Method of producing positive temperature coefficient porcelain heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032281A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9950857B1 (en) | 2016-10-17 | 2018-04-24 | Sidergas Spa | Welding wire container |
| US10010962B1 (en) | 2014-09-09 | 2018-07-03 | Awds Technologies Srl | Module and system for controlling and recording welding data, and welding wire feeder |
| US10343231B2 (en) | 2014-05-28 | 2019-07-09 | Awds Technologies Srl | Wire feeding system |
| US10350696B2 (en) | 2015-04-06 | 2019-07-16 | Awds Technologies Srl | Wire feed system and method of controlling feed of welding wire |
| KR20230108377A (en) | 2022-01-11 | 2023-07-18 | (주)원종기계 | Quantitative powder supplying device |
-
1983
- 1983-07-31 JP JP14016683A patent/JPS6032281A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10343231B2 (en) | 2014-05-28 | 2019-07-09 | Awds Technologies Srl | Wire feeding system |
| US10010962B1 (en) | 2014-09-09 | 2018-07-03 | Awds Technologies Srl | Module and system for controlling and recording welding data, and welding wire feeder |
| US10350696B2 (en) | 2015-04-06 | 2019-07-16 | Awds Technologies Srl | Wire feed system and method of controlling feed of welding wire |
| US9950857B1 (en) | 2016-10-17 | 2018-04-24 | Sidergas Spa | Welding wire container |
| KR20230108377A (en) | 2022-01-11 | 2023-07-18 | (주)원종기계 | Quantitative powder supplying device |
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