JP2645280B2 - Method for manufacturing a ceramic swirl chamber of an internal combustion engine - Google Patents
Method for manufacturing a ceramic swirl chamber of an internal combustion engineInfo
- Publication number
- JP2645280B2 JP2645280B2 JP26798287A JP26798287A JP2645280B2 JP 2645280 B2 JP2645280 B2 JP 2645280B2 JP 26798287 A JP26798287 A JP 26798287A JP 26798287 A JP26798287 A JP 26798287A JP 2645280 B2 JP2645280 B2 JP 2645280B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal plate
- ceramic
- tungsten wire
- chamber
- vortex chamber
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/28—Other pistons with specially-shaped head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B2019/002—Engines characterised by precombustion chambers with electric heater fitted to at least part of prechamber-wall or transfer passage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/16—Indirect injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、タングステン線を埋設して成る発熱型セラ
ミック渦流室の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a heating type ceramic vortex chamber formed by embedding a tungsten wire.
（従来の技術） 従来から、ジーゼルエンジンにおいて、主燃焼室の上
または横に渦流室を設け、圧縮行程時にこの渦流室内に
空気の渦流（押し込み渦流）を発生させると同時にそこ
へ燃料を噴射し、上記渦流を利用して燃料と高圧空気と
を良く混合させて燃焼させる渦流室式のものが知られて
いる。(Prior Art) Conventionally, in a diesel engine, a vortex chamber is provided above or beside a main combustion chamber, and a vortex (push vortex) of air is generated in the vortex chamber during a compression stroke, and fuel is simultaneously injected into the vortex chamber. A vortex chamber type in which fuel and high-pressure air are mixed well by using the vortex and burned is known.
また、上記の如き渦流室としては、例えば特開昭54−
89136号公報に記載されているように、熱効率を向上さ
せる意味からセラミックにより形成し、かつ渦流室壁内
にタングステン線から成る発熱材を埋設し、始動時に該
タングステン線に通電して発熱させ、渦流室の壁を加熱
してエンジンの始動性や半失火等を改善するようにした
ものが知られている。Further, as the vortex chamber as described above, for example,
As described in No. 89136, it is made of ceramic for the purpose of improving thermal efficiency, and a heating material made of tungsten wire is embedded in the vortex chamber wall, and the tungsten wire is energized at the time of starting to generate heat, There is known an apparatus in which the wall of a vortex chamber is heated to improve the startability of an engine, a semi-misfire, and the like.
かかる発熱型セラミック渦流室は、例えば、タングス
テン線を埋設した状態でセラミック材を焼結して渦流室
を成形し、この渦流室に上記タングステン線の端子部が
外部に露出した端子板接合部を形成する加工、例えば切
削加工を施し、この端子板接合部に端子板を接合するこ
とによって製造される。Such a heating type ceramic vortex chamber is formed, for example, by sintering a ceramic material with a tungsten wire buried therein to form a vortex chamber, and in this vortex chamber, a terminal plate joint where the terminal portion of the tungsten wire is exposed to the outside. It is manufactured by performing a forming process, for example, a cutting process, and joining a terminal plate to this terminal plate joint.
上記端子板接合部における端子板の接合、つまり端子
板接合部において外部に露出しているタングステン線の
端子部と端子板との接合は、タングステン線に通電し発
熱を行なわせる点において、その接合信頼性は十分に高
いものであることが必要である。The joining of the terminal plates at the terminal plate joining portion, that is, the joining between the terminal portion of the tungsten wire exposed to the outside and the terminal plate at the terminal plate joining portion is performed in that the tungsten wire is energized to generate heat. Reliability must be sufficiently high.
（発明が解決しようとする問題点） しかしながら、上記端子板接合部において外部に露出
している、つまりセラミックから露出しているタングス
テン線の端子部面積は非常に小さく、従って、その様な
端子板接合部において外部に露出したタングステン線端
子部と銅，ニッケル等から成る端子板とをろう付けして
も十分な接合強度を得ることは困難である。(Problems to be Solved by the Invention) However, the terminal area of the tungsten wire exposed to the outside at the terminal plate joint, that is, the tungsten wire exposed from the ceramic is very small. It is difficult to obtain sufficient bonding strength even if the tungsten wire terminal portion exposed to the outside at the bonding portion is brazed to a terminal plate made of copper, nickel or the like.
そこで、上記端子板の接合にあたっては、該端子板を
上記外部に露出したタングステン線端子部のみでなくさ
らにその周辺のセラミック面にも接合し、もって端子板
とタングステン線端子部との接合信頼性を向上せしめる
ことが考えられる。Therefore, in joining the terminal plate, the terminal plate is joined not only to the tungsten wire terminal portion exposed to the outside but also to the surrounding ceramic surface, thereby improving the joining reliability between the terminal plate and the tungsten wire terminal portion. Can be improved.
しかるに、セラミックと金属との接合について従来の
技術を見てみると、例えばAg−23％Cu−1.5％Tiといっ
た活性金属ろう材がセラミック接合用として市販されて
おり、例えばターボチャージャロータにおいてもこの種
のろう材が使用されている。However, looking at conventional techniques for joining ceramic and metal, an active metal brazing material such as Ag-23% Cu-1.5% Ti is commercially available for ceramic joining. Some brazing materials are used.
しかしながら、渦流室におけるセラミックの温度は約
700℃にまでも達することが予想され、ろう付け温度が
約820℃である上記の如き銀−銅をベースとした活性金
属ろうでは十分な接合信頼性を得ることはできないし、
またセラミックとの接合強度自体も未だ満足できるもの
ではない。However, the temperature of the ceramic in the vortex chamber is about
It is expected that the temperature will reach as high as 700 ° C., and a silver-copper-based active metal braze as described above having a brazing temperature of about 820 ° C. cannot provide sufficient bonding reliability.
Further, the bonding strength itself with the ceramic is not yet satisfactory.
本発明の目的は、上記事情に鑑み、渦流室の端子板結
合部において端子板をタングステン線端子部のみならず
その周辺のセラミックにも強固に接合し、かつそのセラ
ミックが約700℃という高温になった状態においても十
分な接合信頼性を確保することのできる内燃機関のセラ
ミック渦流室の製造方法を提供することにある。In view of the above circumstances, an object of the present invention is to firmly join a terminal plate not only to a tungsten wire terminal portion but also to a surrounding ceramic at a terminal plate joint portion of a vortex chamber, and the ceramic is heated to a high temperature of about 700 ° C. It is an object of the present invention to provide a method of manufacturing a ceramic vortex chamber of an internal combustion engine, which can secure sufficient joint reliability even in a state where the ceramic vortex flow chamber is in an incomplete state.
（問題点を解決するための手段） 本発明に係る内燃機関の渦流室の製造方法は、上記目
的を達成するため、 渦流室のタングステン端子部が外部に露出した端子板
接合部に、間にTi（チタン）,Zr（ジルコニウム）等の
セラミックに対する活性金属粉末、Cu（銅）,Ni（ニッ
ケル）等のろう材との接合性の良い金属粉末および金−
銅ろうを介して端子板を配設し、所定温度に加熱して上
記端子板を上記端子板結合部にろう付けすることを特徴
とする。(Means for Solving the Problems) In order to achieve the above object, a method for manufacturing a swirl chamber of an internal combustion engine according to the present invention includes, between a terminal plate joint where a tungsten terminal of the swirl chamber is exposed to the outside, Active metal powder for ceramics such as Ti (titanium) and Zr (zirconium), metal powder with good bondability with brazing materials such as Cu (copper) and Ni (nickel) and gold
A terminal plate is provided via a copper braze, and heated to a predetermined temperature to braze the terminal plate to the terminal plate joint.
より具体的には、上記端子板接合面に、例えば上記T
i,Zr等の活性金属粉末の一種もしくは複数種に上記Cu,N
i等の金属粉末の一種もしくは複数種を加えてペースト
状にしたものを塗布し、乾燥させ、その後、金−銅ろう
箔を介して例えば1000℃〜1050℃、H2または真空中で金
属端子板をろう付けして成るものである。More specifically, for example, the T
One or more active metal powders such as i, Zr, etc.
One or more kinds of metal powders such as i are added and made into a paste form, dried, and then, for example, 1000 ° C. to 1050 ° C. through a gold-copper brazing foil, H 2 or a metal terminal in a vacuum. It is made by brazing a plate.
（作用） 上記方法で端子板接合面に端子板をろう付けすると、
上記Ti,Zr等のセラミックに対して活性な金属粉末とろ
う材との接合性の良いCu,Ni等の金属粉末から成る混合
粉末はタングステンと共にセラミックスに良く反応接合
すると同時に上記金−銅ろうとも漏れ反応し、よって端
子板を端子板接合部においてタングステン線の端子部の
みならずセラミックにも強固に接合させることができ
る。(Operation) When the terminal plate is brazed to the terminal plate joint surface by the above method,
The mixed powder consisting of metal powders such as Cu and Ni, which have good bonding properties between the metal powder active for ceramics such as Ti and Zr, and the brazing filler metal, together with tungsten, reacts well with ceramics at the same time as the tungsten and the gold-copper solder. Leakage reaction occurs, so that the terminal plate can be firmly bonded not only to the terminal portion of the tungsten wire but also to the ceramic at the terminal plate bonding portion.
また、ろう材として従来使用されている銀−銅ろうよ
りもろう付け温度の高い金−銅ろう（例えばろう付け温
度約1000〜1050℃）を使用しているので、約70℃にまで
温度が上昇する発熱型渦流室においてもその接合信頼性
は十分に高いものである。In addition, since a brazing temperature of gold-copper brazing (for example, a brazing temperature of about 1000 to 1050 ° C.) is used as a brazing material, a temperature of up to about 70 ° C. is used. Even in the rising heat-generating vortex chamber, the joining reliability is sufficiently high.
（実 施 例） 以下、図面を参照しながら本発明の実施例について詳
細に説明する。(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第１図は本発明に係る方法の一実施例によって製造さ
れた渦流室の断面図、第２図は第１図のII−II線断面
図、第３図は第２図に示す渦流室のタングステン線埋設
チャンバを焼きばめ金属を除いた状態で示す正面図であ
る。1 is a sectional view of a vortex chamber manufactured by one embodiment of the method according to the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a sectional view of the vortex chamber shown in FIG. It is a front view which shows the tungsten wire embedding chamber in the state where shrink fit metal was removed.
図示の渦流室２は、渦流室の内部空間2aを形成するセ
ミック製の上部チャンバ４、中央チャンバ６および下部
チャンバ８を備え、これらを焼きばめ金属10によって一
体的に組み付けて成るものである。The illustrated swirl chamber 2 includes an upper chamber 4, a central chamber 6, and a lower chamber 8 made of semiic which form an internal space 2a of the swirl chamber, and these are integrally assembled by shrink-fitting metal 10. .
上記中央チャンバ６には発熱材を構成するタングステ
ン線12が上下方向に所定間隔をおいて４本埋設されてお
り、各タングステン線12はそれぞれ燃料の噴射方向側の
壁部分（第２図の左側壁部分）においてコイル状に巻回
されている。Four tungsten wires 12 constituting a heating material are embedded in the center chamber 6 at predetermined intervals in the vertical direction, and each of the tungsten wires 12 is a wall portion on the fuel injection direction side (the left side in FIG. 2). (Wall portion).
また、上記中央チャンバ６の外表面にはタングステン
線12の端子部がセラミック部分から外部に露出した
（＋）側端子板接合部6aと（−）側端子板接合部6bとが
形成され、両接合部6a,6bにはCu（銅）、Ni（ニッケ
ル）等の金属から成る端子板14a,14bが接合されてい
る。上記（＋）側端子板14aは、その外表面が絶縁コー
ティングされて焼きばめ金属10との電気的接続が断た
れ、該焼きばめ金属10に形成された孔10aを通るリード
線16aを介して電源（図示せず）の（＋）側に接続され
ている。上記（−）側端子板14bは、その外表面が焼き
ばめ金属10の内表面に接触せしめられて両者は電気的に
接続され、この焼きばめ金属10およびそれに接続された
リード線16bを介して電源（図示せず）の（−）側に接
続されている。Further, on the outer surface of the central chamber 6, a (+) side terminal plate joint 6a and a (-) side terminal plate joint 6b in which the terminal portion of the tungsten wire 12 is exposed to the outside from the ceramic portion are formed. Terminal plates 14a and 14b made of a metal such as Cu (copper) and Ni (nickel) are joined to the joints 6a and 6b. The (+) side terminal plate 14a has an outer surface coated with an insulating material, and is electrically disconnected from the shrink-fit metal 10 so that a lead wire 16a passing through a hole 10a formed in the shrink-fit metal 10 is formed. It is connected to the (+) side of a power supply (not shown) through the power supply. The (-) side terminal plate 14b has its outer surface brought into contact with the inner surface of the shrink-fitting metal 10 and both are electrically connected. The shrink-fitting metal 10 and the lead wire 16b connected thereto are connected to each other. It is connected to the (−) side of a power supply (not shown) through the power supply.
なお、第１図における17a,17bは回り止め部材であ
る。In FIG. 1, reference numerals 17a and 17b denote rotation preventing members.
次に、本発明の一実施例である上記渦流室の製造方法
について説明する。Next, a method of manufacturing the vortex chamber according to an embodiment of the present invention will be described.
まず、適当なセラミック材を焼結して上部チャンバ
４、中央チャンバ６、下部チャンバ８を形成する。中央
チャンバ６を形成するにあたっては、予め上記タングス
テンス線12を埋設した状態で焼結して形成し、かつその
焼結形成された中央チャンバ６に対してタングステン線
12の端子部の端面がセラミック部分から外部に確実に露
出した端子板接合部6a,6bを形成する加工を施し、その
接合部6a,6bに上述の端子板14a,14bを接合することによ
り行なう。なお、上記端子板接合部6a,6bの形成加工
は、例えばタングステン線12の端子部が確実に位置する
深さまでチャバ外表面を切削加工することによって行な
われる。そして、上記の如くして形成された上部，中央
および下部チャンバ4,6,8を焼きばめ金属10によって焼
きばめして一体的に組み合せ、上記リード線16a,16bを
接続して渦流室２を製造する。First, an appropriate ceramic material is sintered to form an upper chamber 4, a center chamber 6, and a lower chamber 8. In forming the central chamber 6, the tungsten wire 12 is sintered in advance with the tungsten wire 12 buried therein, and the tungsten wire is
The end faces of the 12 terminal portions are processed by forming the terminal plate joint portions 6a and 6b in which the end faces are reliably exposed to the outside from the ceramic portion, and the terminal plates 14a and 14b are joined to the joint portions 6a and 6b. . The terminal plate joints 6a and 6b are formed by, for example, cutting the outer surface of the chamber to a depth where the terminal of the tungsten wire 12 is securely located. Then, the upper, middle and lower chambers 4, 6, 8 formed as described above are shrink-fitted by shrink-fitting metal 10 and integrally combined, and the above-mentioned lead wires 16a, 16b are connected to form the vortex chamber 2. To manufacture.
次に、上記端子板結合部6aにおける端子板14aの接合
について第４図，第５図を参照しながら説明する。な
お、端子板接合部6bにおける端子板14bの接合は同様で
あるので説明を省略する。Next, the joining of the terminal plate 14a at the terminal plate coupling portion 6a will be described with reference to FIGS. Note that the joining of the terminal plate 14b at the terminal plate joining portion 6b is the same, and a description thereof will be omitted.
第４図は端子板接合部6aと端子板14aとの接合面の状
態を拡大して示す第２図と同様の断面図、第５図は接合
後の状態を拡大して示す第２図と同様の断面図である。FIG. 4 is an enlarged sectional view similar to FIG. 2 showing a state of a joint surface between the terminal plate joint 6a and the terminal plate 14a, and FIG. 5 is an enlarged view of a state after joining. It is a similar sectional view.
本実施例においては、第４図に示す様に、端子板14a
を接合するに際して、まず端子板接合部6a上に、Cu−30
％Ni−３％Ti（wt％）の混合粉末18をエチルセルロース
にてペースト状にしたものを塗布し、その上に100μｍ
の金−銅ろう19（JIS BAu−11相当）の箔を置き、150℃
にて２時間電気炉中で乾燥させた。乾燥後は金−銅ろう
の厚さを含めてその厚さは130μｍであった。この後、
上記金−銅ろうの上に厚さ1.0mmのCuから成る端子板14a
を置き、真空中（10-5 Torr）、1050℃にてろう付けを
行なった。In the present embodiment, as shown in FIG.
When joining, first, Cu-30
% Ni-3% Ti (wt%) mixed powder 18 in the form of paste with ethyl cellulose is applied, and 100 μm
Place a foil of gold-copper braze 19 (equivalent to JIS BAu-11) at 150 ° C
For 2 hours in an electric furnace. After drying, the thickness was 130 μm, including the thickness of the gold-copper braze. After this,
A terminal plate 14a made of Cu having a thickness of 1.0 mm on the gold-copper solder.
And brazed at 1050 ° C. in a vacuum (10 −5 Torr).
上記接合部を切断して断面を観察すると、第５図に示
す様に、金−銅ろう19は上記混合粉末18を覆い、つまり
上記混合粉末18の中に浸み込んで行き、端子板接合部6a
のセラミック面にまで達していた。これによって、上記
混合粉末18はセラミック，タングステンと反応接合され
ると同時に金−銅ろう19とも漏れ反応していることが確
認された。When the cross section was cut and the cross section was observed, as shown in FIG. 5, the gold-copper braze 19 covered the mixed powder 18, that is, immersed in the mixed powder 18 and joined to the terminal plate. Part 6a
Up to the ceramic surface. As a result, it was confirmed that the mixed powder 18 was reactively bonded with ceramic and tungsten, and at the same time, had a leaky reaction with the gold-copper braze 19.
また、上記接合強度を調べるため、第６図に示す様な
円柱状のテストピースを作成し、室温〜700℃までの範
囲におけるせん断強度を測定した。上記テストピース
は、タングステン線20を軸方向に埋設したセラミック円
柱体22と、SCM3から成る金属円柱体24と、Cuから成る円
板26を用い、Cu円板26と金属円柱体24との第１接合部28
を金−銅ろう（BAu−11）で接合し、Cu円板26とセラミ
ック円柱体22との第２接合部30を上記実施例で示した混
合粉末と金−銅ろうとにより接合したものと従来法であ
る銀−銅ろうのみで接合したものとを作製し、せん断強
度試験に供した。試験結果は下表の通りであった。In addition, in order to examine the bonding strength, a cylindrical test piece as shown in FIG. 6 was prepared, and the shear strength in a range from room temperature to 700 ° C. was measured. The test piece uses a ceramic cylinder 22 in which a tungsten wire 20 is embedded in the axial direction, a metal cylinder 24 made of SCM3, and a disk 26 made of Cu. 1 joint 28
Are bonded by a gold-copper solder (BAu-11), and a second bonding portion 30 of the Cu disk 26 and the ceramic cylinder 22 is bonded by the mixed powder shown in the above embodiment and the gold-copper solder, and A solder joint made only with a silver-copper solder, which is a method, was prepared and subjected to a shear strength test. The test results are as shown in the table below.
上記表から、本実施例により接合すると渦流室におい
て予想される700℃の温度においても十分な接合強度を
確保できることが確認された。 From the above table, it was confirmed that sufficient bonding strength can be secured even at a temperature of 700 ° C. expected in the vortex chamber when bonding according to the present example.
（発明の効果） 上述の様に、本発明に係る内燃機関の渦流室の製造方
法によれば、セラミック面にタングステン線の端子部が
露出して成る端子板接合面に端子板を接合するに際し
て、両者間に、セラミックに対して活性な接着性の良い
Ti,Zr等の活性金属粉末およびろう材との接合性の良いC
u,Ni等の金属粉末の両金属粉末と金−銅ろうとを配設し
てろう付けして成るので、上記両粉末は端子板接合部の
セラミックおよびタングステン線に反応接合し、かつ両
粉末は金−銅ろうとも漏れ反応し、その結果端子板は上
記接合面のセラミックおよびタングステン線の双方に強
固に接合され、また金−銅ろうを使用しているので従来
の銀−銅ろうに比して渦流室の予想される700℃という
高温においても接合強度が低下したりするおそれも少な
い。(Effects of the Invention) As described above, according to the method for manufacturing a swirl chamber of an internal combustion engine according to the present invention, when a terminal plate is joined to a terminal plate joining surface having a terminal portion of a tungsten wire exposed on a ceramic surface. , Good adhesion between ceramic and active
C with good bondability with active metal powders such as Ti and Zr and brazing filler metals
Since both metal powders of metal powders such as u, Ni, etc. and gold-copper brazing are arranged and brazed, the two powders are reactively bonded to the ceramic and tungsten wires of the terminal plate joint, and both powders are Leakage reaction also occurs with the gold-copper solder, and as a result, the terminal plate is firmly bonded to both the ceramic and tungsten wires at the above-mentioned bonding surface, and the gold-copper solder is used. Therefore, even at the expected high temperature of 700 ° C. of the vortex chamber, there is little possibility that the bonding strength is reduced.
第１図は本発明に係る方法の一実施例によって製造され
た渦流室の断面図、第２図は第１図のII−II線断面図、
第３図は第２図に示す渦流室のタングステン線埋設チャ
ンバを焼きばめ金属を除いた状態で示す正面図、第４図
は端子板接合部と端子板との接合前の状態を拡大して示
す第２図と同様の断面図、第５図は接合後の状態を拡大
して示す第２図と同様の断面図、第６図はテストピース
を示す正面図である。 ２……渦流室、6a,6b……端子板接合部 12……タングステン線、14a,14b……端子板 18……セラミックに対する活性金属粉末およびろう材と
の接合性の良い金属粉末 19……金−銅ろうFIG. 1 is a sectional view of a swirl chamber manufactured by one embodiment of the method according to the present invention, FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a front view showing a state in which the tungsten wire burying chamber of the swirl chamber shown in FIG. 2 is shrink-fitted and the metal is removed, and FIG. 4 is an enlarged view of a state before joining the terminal plate joint and the terminal plate. FIG. 5 is a sectional view similar to FIG. 2 showing the state after bonding, FIG. 5 is a sectional view similar to FIG. 2, and FIG. 6 is a front view showing a test piece. 2 ... vortex chamber, 6a, 6b ... terminal plate joining part 12 ... tungsten wire, 14a, 14b ... terminal plate 18 ... active metal powder to ceramic and metal powder with good bondability with brazing material 19 ... Gold-copper brazing
Claims (1)
内燃機関のセラミック渦流室の製造方法であって、 タングステン線を埋設してセラミック材から成る渦流室
を焼結成形し、 該渦流室に上記タングステン線の端子部が外部に露出し
た端子板接合部を形成する加工を施し、 上記端子板接合部に、間にTi,Zr等のセラミックに対す
る活性金属粉末、ろう材との接合性の良い金属粉末およ
び金−銅ろうを介して端子板を配設し、 所定温度に加熱して上記端子板を上記端子板接合部にろ
う付けすることを特徴とする内燃機関のセラミック渦流
室の製造方法。1. A method for manufacturing a ceramic vortex chamber of an internal combustion engine in which a heating material made of a tungsten wire is embedded, wherein the tungsten wire is embedded and a vortex chamber made of a ceramic material is formed by sintering. A process to form a terminal plate joint where the terminal portion of the tungsten wire is exposed to the outside. The terminal plate joint has an active metal powder for ceramics such as Ti and Zr, and a metal having good bondability with a brazing material. A method for manufacturing a ceramic vortex chamber for an internal combustion engine, comprising: disposing a terminal plate via a powder and a gold-copper solder, heating the terminal plate to a predetermined temperature, and brazing the terminal plate to the terminal plate joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26798287A JP2645280B2 (en) | 1987-10-23 | 1987-10-23 | Method for manufacturing a ceramic swirl chamber of an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26798287A JP2645280B2 (en) | 1987-10-23 | 1987-10-23 | Method for manufacturing a ceramic swirl chamber of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01110826A JPH01110826A (en) | 1989-04-27 |
| JP2645280B2 true JP2645280B2 (en) | 1997-08-25 |
Family
ID=17452268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26798287A Expired - Lifetime JP2645280B2 (en) | 1987-10-23 | 1987-10-23 | Method for manufacturing a ceramic swirl chamber of an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2645280B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6635358B2 (en) | 2000-07-27 | 2003-10-21 | Ngk Insulators, Ltd. | Composite member comprising bonded different members and method for making the composite member |
| CN106640402A (en) * | 2016-12-12 | 2017-05-10 | 日照金港活塞有限公司 | Vacuum high-temperature brazing piston and manufacturing process thereof |
-
1987
- 1987-10-23 JP JP26798287A patent/JP2645280B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01110826A (en) | 1989-04-27 |
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