JPH01219075A - Production of sintered good utilizing core melted at high temperature - Google Patents
Production of sintered good utilizing core melted at high temperatureInfo
- Publication number
- JPH01219075A JPH01219075A JP4548388A JP4548388A JPH01219075A JP H01219075 A JPH01219075 A JP H01219075A JP 4548388 A JP4548388 A JP 4548388A JP 4548388 A JP4548388 A JP 4548388A JP H01219075 A JPH01219075 A JP H01219075A
- Authority
- JP
- Japan
- Prior art keywords
- core
- good
- heat
- sintered
- production
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000000155 melt Substances 0.000 claims abstract 2
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract 2
- 238000003754 machining Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000011796 hollow space material Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 235000002767 Daucus carota Nutrition 0.000 description 1
- 244000000626 Daucus carota Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
Abstract
Description
【発明の詳細な説明】
【産業上の利用分野〕
本発明は熱処理を要するセラミックス、金属製品の内部
構造形成技術に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a technology for forming internal structures of ceramics and metal products that require heat treatment.
金属の単体製品内部に複雑な流路や空間を形成するには
ロストワックス技術を用いる鋳造法が公知であるが、近
時の新素材にューセラミックス等）やホットプレス法に
鋳造法を適用することができない。Casting methods using lost wax technology are well known for forming complex channels and spaces inside single metal products, but casting methods can be applied to recent new materials such as e-ceramics) and hot press methods. I can't.
（発明が解決しようとする課１１１１
本発明は従来切削等機械加工の不可能な製品単体の内部
構造の形成を鋳造技術によることなく、正確に実施し得
る技術を提供するものである。(Issue to be Solved by the Invention 1111) The present invention provides a technology that can accurately form the internal structure of a single product, which conventionally cannot be machined by cutting or other machining, without using casting technology.
ｃａｍを解決するための手段〕
本発明はセラミックスと金属あるいは組成の異なる合金
類の高温度による溶融あるいは昇華特性を利用した熱処
理製品製造法であり、製品の熱処理温度以下で溶融する
金属または非金属材で中子を作り１この中子を包括して
ホットプレス等により製品本体を形成することとし、初
期熱処理後に中子を支持する芯金の除去を行ない、最終
的な熱処理行程において中子の溶融量または昇華を図る
ものであり、これによって機械加工によることなく製品
の複雑な内部構造の構築を可能とするものである。CAM] The present invention is a method for manufacturing heat-treated products that utilizes the melting or sublimation characteristics of ceramics and metals or alloys with different compositions at high temperatures. A core is made from the material, and the core is wrapped around it to form the product body by hot pressing, etc. After the initial heat treatment, the core metal that supports the core is removed, and in the final heat treatment process, the core is It aims at melting amount or sublimation, which makes it possible to construct complex internal structures of products without using machining.
（実施例〕
本発明の実施例をディーゼルニンジン用燃料噴射ノヅル
について説明すると以下のごとくであ４図１において示
すごと〈従来ノヅルの噴孔断面は機械加工によって噴孔
流路が形成さｎ１耐磨耗性を高めるため窒化処理が施さ
れている。また、流路は機械加工により当然円筒状であ
り、この噴孔よりの燃料分布パターンは当然のことなが
ら円形以外の分布パターンを求めることはできない。(Example) An example of the present invention will be explained with reference to a fuel injection nozzle for diesel carrots.As shown in Fig. Nitriding treatment is applied to increase abrasion resistance.Also, the flow path is naturally cylindrical due to machining, and it is natural that the fuel distribution pattern from this nozzle hole is not circular. Can not.
また、放電加工によｎば変形の噴孔作製も可能であるが
、生産性が低下しコストが大となり、且つ流路内に順次
絞り作用をもたすごとき形状は望むべくもないことであ
る。In addition, although it is possible to create a deformed nozzle hole by electric discharge machining, productivity decreases and costs increase, and a shape that causes a sequential throttling effect in the flow path is undesirable. be.
これに対し本発明においては図２に示すごとく予め芯金
Ｑ）にサック部中子（３）を装着し、こｎに求める形状
の流路中子（４）を装着するごとくシ、段階的な熱処理
あるいはプレス終了時において芯金（２）の？ＩＩ来を
行なうものである。そして、熱処理の進行によって中子
（ジ・（４）の溶融出を行なわしめ、求める流路形状を
得るものである。On the other hand, in the present invention, as shown in Fig. 2, the sac part core (3) is attached to the core bar Q) in advance, and the channel core (4) of the desired shape is attached thereto in a stepwise manner. Is the core metal (2) subjected to heat treatment or at the end of pressing? II. Then, as the heat treatment progresses, the core (di-(4)) is melted out to obtain the desired flow path shape.
このように中子による自由な形状の噴孔、流路の構築は
燃料噴射条件（貫徹性、拡散性、霧化性）と空気との混
合条件によって支配される内燃機関の燃焼条件に重要な
影響を及ぼすものであり、これによって従来ノヅル方式
では達成することができなかった熱効率の改善、排気中
の有害成分の低減等が可能となってくる。In this way, the construction of freely shaped nozzle holes and flow paths using the core is important for the combustion conditions of internal combustion engines, which are controlled by the fuel injection conditions (penetration, diffusivity, atomization) and the mixing conditions with air. This makes it possible to improve thermal efficiency and reduce harmful components in exhaust gas, which could not be achieved with conventional nozzle systems.
またノヅル材料として金属材料よりも緒特性に優れたニ
ュー七う滝ツクスは加工性が極めて田植なことにより今
日まで内燃機関ノヅルとして実用化されていないが、本
発明の方法によれば容易に製造しつることになった。Furthermore, as a nozzle material, New Nanautaki Tsukusu, which has superior properties compared to metal materials, has extremely high workability and has not been put to practical use as an internal combustion engine nozzle to date, but it can be easily manufactured using the method of the present invention. I decided to hold it.
本実施例はニューセラミックスと金属中子との組み合わ
せについて説明したが１金属と金属との組み合わせ等に
おいても金属間の融着を防止する手段（例えば中子に酸
化波膜処理を施す等）を行なえば、本発明の実施が容易
である。This example describes a combination of new ceramics and a metal core, but even in the case of a combination of two metals, means to prevent fusion between metals (for example, applying oxidation wave film treatment to the core) If this is done, it will be easy to implement the present invention.
図１は従来の４孔ホールノヅルの断面図、図２は本発明
の一例を示すセラミックス断面図であり、図３、図４は
変形噴孔の例を示す。
図中（１３・・・セラ之ツクスノヅルボディ先端部、（
２）・・・従来の金属ノヅル噴孔と流路、（３）・・・
芯ガネ、（４）・・・サック部を形成する溶融中子、（
５）・・・円ｆｍｍ状の噴流路中子と中子溶出後の形状
を示す。（６３・・・途中に絞り部を有する噴流中子と
流路形状、（７）・（８）・・・変形噴孔の例を示す。FIG. 1 is a sectional view of a conventional four-hole nozzle, FIG. 2 is a sectional view of a ceramic material showing an example of the present invention, and FIGS. 3 and 4 show examples of modified nozzle holes. In the figure (13... tip of Sera no Tsukusu no crane body, (
2)...Conventional metal nozzle nozzle hole and flow path, (3)...
Core gun, (4)... Molten core forming the sack part, (
5) Shows the jet channel core having a circular fmm shape and the shape after the core has been eluted. (63...Examples of a jet core and flow path shape having a constricted part in the middle, (7) and (8)...deformed nozzle holes are shown.
Claims (1)
たは非金属によつて製品の内部構造中子を構成し、製品
の熱処理工程において溶融温度差によつて中子を溶出あ
るいは昇華させ、製品内部に中子構造の空間を構築する
ことを特徴とした焼結製品の製造法。The internal structural core of the product is made of a metal or nonmetal that melts, flows out, or sublimates at a temperature below the heat treatment temperature of the product. A method for manufacturing sintered products characterized by constructing a space with a core structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4548388A JPH01219075A (en) | 1988-02-27 | 1988-02-27 | Production of sintered good utilizing core melted at high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4548388A JPH01219075A (en) | 1988-02-27 | 1988-02-27 | Production of sintered good utilizing core melted at high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01219075A true JPH01219075A (en) | 1989-09-01 |
Family
ID=12720645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4548388A Pending JPH01219075A (en) | 1988-02-27 | 1988-02-27 | Production of sintered good utilizing core melted at high temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01219075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2690374A1 (en) * | 1992-04-24 | 1993-10-29 | Programme 3 Patent Holdings | Process for the production of a processed product and sintered ceramic material obtained by this process |
-
1988
- 1988-02-27 JP JP4548388A patent/JPH01219075A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2690374A1 (en) * | 1992-04-24 | 1993-10-29 | Programme 3 Patent Holdings | Process for the production of a processed product and sintered ceramic material obtained by this process |
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