JP2003334760A - nozzle - Google Patents
nozzleInfo
- Publication number
- JP2003334760A JP2003334760A JP2002140330A JP2002140330A JP2003334760A JP 2003334760 A JP2003334760 A JP 2003334760A JP 2002140330 A JP2002140330 A JP 2002140330A JP 2002140330 A JP2002140330 A JP 2002140330A JP 2003334760 A JP2003334760 A JP 2003334760A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- diamond sintered
- sintered body
- sectional shape
- present
- 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
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 30
- 239000010432 diamond Substances 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- -1 cemented carbide Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はノズルに関し、さら
に詳しくは、耐摩耗性に優れ、寿命が長く、作業能率を
向上させ得る上、製作が容易なノズル、特に研磨粒子を
噴射させるノズルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle, and more particularly, to a nozzle which is excellent in wear resistance, has a long life, can improve work efficiency, and is easy to manufacture, and more particularly, a nozzle for ejecting abrasive particles. Is.
【０００２】[0002]
【従来の技術】一般に、流動体と接する面には少なから
ず摩耗が生じ、特に流動体を高速で流したり、流動体中
に硬度の高い粒子が含まれている場合には、摩耗は加速
度的に進行することが知られている。例えば、水あるい
は微細な研磨粒子を、高圧の噴流として、直接被加工物
に向けて噴射し、この噴流によって被加工物を加工する
ノズルにおいては、高圧の水や微細な研磨粒子を細径の
ノズルから高圧で噴出させるために摩耗が激しく、研磨
粒子噴射用のノズルにおいては、さらに摩耗が進行す
る。従来、このような研磨粒子噴射用ノズルにおいて
は、ノズル全体が耐摩耗性金属やセラミックなどの材料
によって形成されていたが、加工速度や加工能率を高め
るために、さらに高い耐摩耗性が要求されるようになっ
てきた。そこで、この要求を満たすために、種々の提案
がなされている。例えば、内壁面に耐摩耗性セラミック
を被覆したもの（特開昭６０−１９７３７０号公報）、
内面にダイヤモンド焼結体や立方晶窒化ホウ素（ｃＢ
Ｎ）焼結体で形成した環状ダイスを積み重ねて固定した
もの（実開昭６３−５０７００号公報）が提案されてい
る。また、最近では、管内部に粒径０.１〜２μｍの柱
状晶の微細なダイヤモンド層を化学蒸着させたもの（特
開平６−８１４６号公報）、円柱状の基体にＣＶＤダイ
ヤモンドを析出させ、基体を溶解除去し、得られたダイ
ヤモンドチューブの外周を超硬合金で強度補強したもの
（実公平６−３４９３６号公報）、環状基体の内面にＣ
ＶＤダイヤモンド層を形成したもの（特開昭６３−３１
５５９７号公報）などが提案されている。しかしなが
ら、ノズル全体が耐摩耗性金属又はセラミックなどの材
料で構成されたものや、内壁にセラミックを被覆したも
のは、耐摩耗性が不十分で、噴射流路の内壁が摩耗によ
り損傷し、流路径が拡大するため、性能の低下が著し
く、その結果、ノズルを頻繁に交換しなければならず、
稼働効率や能率の低下をもたらし、加工コストが高くつ
くという問題があった。また、ダイヤモンド焼結体やｃ
ＢＮ焼結体で形成した環状ダイスを積み重ねて固定した
ものは、通過する超高速の水流によって接合部分が優先
的に摩耗する上、水に研磨粒子が含まれている場合、一
旦摩耗が発生すると急速に摩耗が進行するなどの欠点を
有している。さらに、ＣＶＤ法（化学的気相蒸着法）に
より、ダイヤモンド被覆層を形成させる場合、操作が煩
雑である上、内面を隙間なくダイヤモンドで被覆するこ
とが難かしいなどの問題を有している。2. Description of the Related Art In general, a considerable amount of wear occurs on a surface in contact with a fluid, and especially when the fluid flows at high speed or when the fluid contains particles having high hardness, the wear is accelerated. It is known to progress to. For example, in a nozzle in which water or fine abrasive particles are jetted as a high-pressure jet directly toward the workpiece, and the jet is used to process the workpiece, the high-pressure water and the fine abrasive particles have a small diameter. Since it is ejected from the nozzle at a high pressure, the wear is severe, and further wear progresses in the nozzle for spraying abrasive particles. Conventionally, in such an abrasive particle jetting nozzle, the entire nozzle has been formed of a material such as wear-resistant metal or ceramic, but higher wear resistance is required to increase the processing speed and processing efficiency. It started to come. Therefore, various proposals have been made to meet this demand. For example, an inner wall surface coated with wear-resistant ceramic (Japanese Patent Laid-Open No. 60-197370),
The inner surface is diamond sintered or cubic boron nitride (cB
N) A structure in which annular dies made of a sintered body are stacked and fixed (Japanese Utility Model Publication No. 63-50700) is proposed. In addition, recently, a chemical vapor deposition of a fine diamond layer of columnar crystals having a grain size of 0.1 to 2 μm inside the tube (Japanese Patent Laid-Open No. 6-8146), CVD diamond is deposited on a columnar substrate, The substrate was dissolved and removed, and the outer circumference of the obtained diamond tube was reinforced with cemented carbide (Japanese Utility Model Publication No. 6-34936).
Formed VD diamond layer (Japanese Patent Laid-Open No. 63-31)
No. 5597) has been proposed. However, if the entire nozzle is made of a material such as wear-resistant metal or ceramic, or if the inner wall is coated with ceramic, the wear resistance is insufficient and the inner wall of the injection flow channel is damaged due to wear, As the diameter of the road increases, there is a significant decrease in performance, and as a result, the nozzle must be replaced frequently,
There was a problem that the operating cost and efficiency were lowered and the processing cost was high. In addition, diamond sintered body and c
In the case where the annular dies formed of BN sintered bodies are stacked and fixed, the joining portion is preferentially worn by the passing ultra-high-speed water flow, and when the water contains abrasive particles, the wear occurs once. It has drawbacks such as rapid wear. Further, when the diamond coating layer is formed by the CVD method (chemical vapor deposition method), there are problems that the operation is complicated and that it is difficult to coat the inner surface with diamond without gaps.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、このような
従来技術が有する問題を解決し、耐摩耗性に優れ、寿命
が長く、作業能率を向上させ得る上、製作が容易なノズ
ル、特に研磨粒子を噴射させるノズルを提供することを
目的としてなされたものである。SUMMARY OF THE INVENTION The present invention solves the problems of the prior art as described above, has excellent wear resistance, has a long life, can improve working efficiency, and is particularly easy to manufacture. The purpose of the invention is to provide a nozzle for ejecting abrasive particles.
【０００４】[0004]
【課題を解決するための手段】本発明者は、耐摩耗性に
優れ、寿命が長いノズルを開発すべく鋭意研究を重ねた
結果、下記の知見を得た。従来、ノズルにおける噴射流
路は、断面形状が円形のものがよく、角形のものは噴射
性能に劣ると考えられていたが、本発明者の研究による
と、断面形状が角形でも、円形のものと噴射性能の点で
差がないことが分かった。また、噴射流路の断面形状が
角形の場合、各内周壁面に角溝を設けることにより、耐
摩耗性に優れるダイヤモンド焼結体の板状体を該角溝に
嵌合させて接合し得るので、噴射流路の内周壁全面をダ
イヤモンド焼結体で容易に覆うことができ、耐摩耗性に
優れ、寿命の長いノズルが、簡単に得られることを見出
した。本発明は、かかる知見に基づいて完成したもので
ある。すなわち、本発明は、（１）多角形の断面形状を
有する噴射流路の各内周壁面に設けられた角溝に、板状
ダイヤモンド焼結体を嵌合し、固定したことを特徴とす
るノズル、（２）多角形の断面形状が四〜八角形である
第１項記載のノズル、及び（３）研磨粒子噴射用のノズ
ルである第１項又は第２項記載のノズル、を提供するも
のである。The present inventor has obtained the following findings as a result of intensive studies to develop a nozzle having excellent wear resistance and long life. Conventionally, it was thought that the injection flow path in the nozzle had a circular cross-sectional shape, and the square one had a poor injection performance, but according to the research of the present inventor, even if the cross-sectional shape is a square one, it has a circular shape. It was found that there is no difference in terms of injection performance. When the cross-sectional shape of the injection flow path is square, by providing a square groove on each inner peripheral wall surface, a plate-like body of a diamond sintered body having excellent wear resistance can be fitted and joined to the square groove. Therefore, it has been found that a nozzle which can easily cover the entire inner peripheral wall of the injection channel with the diamond sintered body, has excellent wear resistance, and has a long life is obtained. The present invention has been completed based on such findings. That is, the present invention is characterized in that (1) a plate-shaped diamond sintered body is fitted and fixed in a square groove provided on each inner peripheral wall surface of an injection channel having a polygonal cross-sectional shape. Provided are a nozzle, (2) a nozzle according to item 1, wherein a polygonal cross-sectional shape is a tetragonal to octagonal shape, and (3) a nozzle according to item 1 or 2, which is a nozzle for spraying abrasive particles. It is a thing.
【０００５】[0005]
【発明の実施の形態】本発明のノズルは、水若しくは微
細な研磨粒子を含む水系懸濁液又は研磨粒子を高圧の噴
流として直接被加工物に向けて噴射し、この噴射した水
若しくは水系懸濁液又は研磨粒子によって被加工物を加
工するのに用いられる部材である。本発明のノズルのノ
ズル本体を構成する基体は、断面形状が多角形のストレ
ート形状又は出口側が先細り形状の中空部を有し、かつ
円柱状又は角柱状の外周面を有する中空構造体であり、
該中空部が、水若しくは研磨粒子を含む水系懸濁液又は
研磨粒子の噴射流路となる。本発明においては、前記基
体の中空部における各平面状の内周壁面に角溝を設け、
この角溝に、板状ダイヤモンド焼結体を嵌合して、固定
する。図１は、本発明のノズル本体部の１例の縦断面図
（ａ）及びＡ−Ａ矢視横断面図（ｂ）である。ノズル本
体１０は、中空構造体である基体１の中空部（断面形状
が四角形のストレート形状）における各内周壁面に、そ
れぞれ設けられた各溝に、板状ダイヤモンド焼結体４
ａ、４ｂ、４ｃ及び４ｄが嵌合され、固定された構造を
有している。そして、板状ダイヤモンド焼結体４ａ、４
ｂ、４ｃ及び４ｄで囲繞された空間部が噴射流路２とな
る。なお、５はノズル先端の端面部である。図２は、本
発明のノズル本体部の異なる例の縦断面図である。ノズ
ル本体１０'は、中空構造体である基体１'の中空部（断
面形状が四角形の出口側が先細り形状）における各内周
壁面に、それぞれ設けられた各溝に、４ａ'、４ｃ'を含
む４枚の板状ダイヤモンド焼結体が嵌合され、固定され
た構造を有している。そして、４ａ'、４ｃ'を含む４枚
の板状ダイヤモンド焼結体で囲繞された空間部が噴射流
路２'となる。なお、５'はノズル先端の端面部である。
このように、噴射流路の内周面が、完全にダイヤモンド
焼結体で覆われているので本発明のノズルは、極めて耐
摩耗性に優れ、高い耐久性を有する寿命の長いものとな
る。本発明における前記板状ダイヤモンド焼結体は、公
知の方法、例えばダイヤモンド微粉末と金属系結合剤と
の混合物を超高圧法で焼結させることにより、製造する
ことができる。この板状ダイヤモンド焼結体の厚さは、
通常０.２〜５.０mmで選定される。また、該板状ダイヤ
モンド焼結体を基体に接合させる方法としては特に制限
はなく、例えばロウ付け法や有機系接着剤を使用する方
法などを採用することができる。BEST MODE FOR CARRYING OUT THE INVENTION The nozzle of the present invention jets water or a water-based suspension containing fine abrasive particles or abrasive particles as a high-pressure jet directly toward a workpiece, and the jetted water or water-based suspension is injected. It is a member used for processing a workpiece with a suspension or abrasive particles. The substrate constituting the nozzle body of the nozzle of the present invention is a hollow structure having a polygonal straight shape or a hollow portion having a tapered outlet side and a columnar or prismatic outer peripheral surface.
The hollow portion serves as an injection flow path of water or an aqueous suspension containing abrasive particles or abrasive particles. In the present invention, a square groove is provided on each planar inner peripheral wall surface in the hollow portion of the base,
A plate-shaped diamond sintered body is fitted and fixed in this square groove. FIG. 1 is a vertical cross-sectional view (a) and a cross-sectional view (b) taken along the line AA of an example of a nozzle main body of the present invention. The nozzle main body 10 has a plate-shaped diamond sintered body 4 in each groove provided in each inner peripheral wall surface of each hollow portion (straight cross-sectional shape of a quadrangle) of the base body 1 which is a hollow structure.
It has a structure in which a, 4b, 4c and 4d are fitted and fixed. Then, the plate-shaped diamond sintered bodies 4a, 4
The space surrounded by b, 4c, and 4d becomes the injection flow path 2. In addition, 5 is an end face part of the tip of the nozzle. FIG. 2 is a vertical cross-sectional view of another example of the nozzle body of the present invention. The nozzle body 10 ′ includes 4a ′, 4c ′ in each groove provided in each inner peripheral wall surface in the hollow portion (the outlet side having a quadrangular cross-sectional shape that is tapered on the outlet side) of the base body 1 ′ that is a hollow structure. It has a structure in which four plate-shaped diamond sintered bodies are fitted and fixed. The space surrounded by the four plate-shaped diamond sintered bodies including 4a 'and 4c' becomes the injection flow path 2 '. Reference numeral 5'denotes an end face portion of the nozzle tip.
As described above, since the inner peripheral surface of the injection passage is completely covered with the diamond sintered body, the nozzle of the present invention has extremely excellent wear resistance, high durability and a long life. The plate-shaped diamond sintered body in the present invention can be manufactured by a known method, for example, by sintering a mixture of fine diamond powder and a metallic binder by an ultrahigh pressure method. The thickness of this plate-shaped diamond sintered body is
Normally, it is selected in the range of 0.2 to 5.0 mm. The method for joining the plate-shaped diamond sintered body to the substrate is not particularly limited, and for example, a brazing method or a method using an organic adhesive can be adopted.
【０００６】図１、図２では、ノズルにおける噴射流路
の断面形状は、四角形であるが、本発明においては、こ
れに限定されるものではなく、該噴射流路の断面形状は
四〜八角形とすることができ、加工性の点から四〜六角
形が好ましく、特に四角形が好適である。本発明のノズ
ルにおけるノズル本体の基体の材質としては特に制限は
なく、例えばステンレス鋼、工具鋼、超硬合金、あるい
はタングステン、チタン、モリブテンなどの金属や合金
などを用いることができる。本発明のノズルは、多角形
状の断面形状を有する噴射流路の内周壁面に、板状ダイ
ヤモンド焼結体を設けたものであって、以下に示す効果
を奏する。
（１）ダイヤモンド焼結体は、薄い板状の単純な形状で
あるので、容易に製造することができる。
（２）噴射流路は断面形状が多角形であり、その各内周
壁面に設けられた角溝に、薄い板状のダイヤモンド焼結
体を嵌合し、ロウ付けなどで基体に接合し、固定するこ
とができるので、当該ノズルの製作が容易であり、かつ
ダイヤモンド焼結体の使用量が少なくてすむ。
（３）噴射流路の内周壁面は、全面が隙間なく、耐摩耗
性に優れるダイヤモンド焼結体で覆われているので、噴
射流路の内壁の摩耗が少なく、良好な耐久性を有し、長
時間使用することができる。例えば、従来のノズルは、
２〜６時間程度で交換しなければならなかったが、本発
明のものは２０〜１００時間程度寿命を延ばすことがで
きる。したがって、ノズルの交換頻度が少なくてすみ、
作業能率が向上する。
（４）噴射流路の断面形状が多角形であっても、円形の
ものに比べて、被加工物に対する加工性能はあまり差が
ない。このような長所を有する本発明のノズルは、噴射
流路の内周壁が、極めて耐摩耗性に優れているので、特
にアルミナやガーネットなどの微細な研磨粒子用のノズ
ルとして好適である。1 and 2, the cross-sectional shape of the injection flow path in the nozzle is a quadrangle, but the present invention is not limited to this, and the cross-sectional shape of the injection flow path is 4-8. It may be a polygonal shape, and from the viewpoint of workability, a tetragonal to hexagonal shape is preferable, and a quadrangular shape is particularly preferable. The material of the substrate of the nozzle body in the nozzle of the present invention is not particularly limited, and for example, stainless steel, tool steel, cemented carbide, or metal or alloy such as tungsten, titanium, molybdenum, or the like can be used. The nozzle of the present invention is one in which a plate-shaped diamond sintered body is provided on the inner peripheral wall surface of the injection flow path having a polygonal cross-sectional shape, and has the following effects. (1) Since the diamond sintered body has a simple thin plate shape, it can be easily manufactured. (2) The injection flow path has a polygonal cross-sectional shape, and a thin plate-shaped diamond sintered body is fitted into the square groove provided on each inner peripheral wall surface of the injection flow path and joined to the base body by brazing or the like. Since it can be fixed, the nozzle can be easily manufactured, and the amount of the diamond sintered body used can be small. (3) Since the entire inner wall surface of the injection flow path is covered with a diamond sintered body having excellent wear resistance with no gaps, wear of the inner wall of the injection flow path is small and good durability is achieved. Can be used for a long time. For example, a conventional nozzle
Although it had to be replaced in about 2 to 6 hours, the present invention can extend the life of about 20 to 100 hours. Therefore, it is possible to replace the nozzle less frequently,
Work efficiency is improved. (4) Even if the cross-sectional shape of the injection flow path is polygonal, there is not much difference in the processing performance with respect to the workpiece as compared with the circular shape. The nozzle of the present invention having such advantages is particularly suitable as a nozzle for fine abrasive particles such as alumina and garnet because the inner peripheral wall of the injection passage has extremely excellent wear resistance.
【０００７】[0007]
【実施例】次に、本発明を実施例により、さらに詳細に
説明するが、本発明は、これらの例によってなんら限定
されるものではない。
実施例１
ステンレス鋼を用い、上部に漏斗状の拡径部を有する断
面形状が一辺８mmの正方形の中空部を有し、角柱状中空
部の高さが２５mm、上部拡径部の高さ７mm（全長３２m
m）、外径１８mmの円柱状外周面を有する中空構造体か
らなるノズル本体部の基体を製作した。次いで、この中
空構造体の中空部における４つの平面状内壁それぞれ
に、幅７mm、高さ２５mm、厚さ３.６mmの板状ダイヤモ
ンド焼結体４枚を用い、図１に示すように嵌合し、ロウ
付けにより基体に接合して、ノズルを製作した。次に、
圧力２００MPaにて、粒度＃８０のアルミナを、０.３kg
／minの条件で３分間噴射した結果、３００時間で形状
変化は認められず、また所定の噴流が得られた。
比較例１
上部に漏斗状の拡径部を有する内径７mm、高さ２５mmの
円柱状中空部を有し、上部拡径部の高さ７mm（全長３２
mm）、外径１８mmのＷＣ、ジルコニア、アルミナなどの
耐摩耗性金属からなる、円柱状外周面を有するノズルを
用いて噴射試験を行い、摩耗状態及び耐久時間を測定し
た。その結果、耐久時間は約５時間であった。EXAMPLES The present invention will now be described in more detail with reference to examples, but the present invention is not limited to these examples. Example 1 Using stainless steel, a cross-sectional shape having a funnel-shaped expanded portion at the top has a square hollow portion with a side of 8 mm, the height of the prismatic hollow portion is 25 mm, and the height of the upper expanded portion is 7 mm. (Total length 32m
m), a base body for the nozzle main body, which is a hollow structure having a cylindrical outer peripheral surface with an outer diameter of 18 mm, was manufactured. Next, four plate-shaped diamond sintered bodies each having a width of 7 mm, a height of 25 mm, and a thickness of 3.6 mm were used for each of the four planar inner walls in the hollow portion of the hollow structure, and fitted as shown in FIG. Then, the nozzle was manufactured by bonding to the substrate by brazing. next,
At a pressure of 200 MPa, 0.3 kg of alumina of particle size # 80
As a result of spraying for 3 minutes under the condition of / min, no change in shape was observed after 300 hours, and a predetermined jet flow was obtained. Comparative Example 1 A cylindrical hollow portion having an inner diameter of 7 mm and a height of 25 mm having a funnel-shaped expanded portion at the upper portion, and a height of the expanded portion portion of 7 mm (total length 32
mm), an injection test was performed using a nozzle having an outer diameter of 18 mm and made of a wear-resistant metal such as WC, zirconia, or alumina and having a cylindrical outer peripheral surface, and the wear state and the durability time were measured. As a result, the durability time was about 5 hours.
【０００８】[0008]
【発明の効果】本発明によれば、耐摩耗性に優れ、寿命
が長く、作業能率を向上させ得る上、製作が容易なノズ
ル、特に研磨粒子を噴射させるノズルを提供することが
できる。According to the present invention, it is possible to provide a nozzle which is excellent in wear resistance, has a long life, can improve work efficiency, and is easy to manufacture, and in particular, a nozzle for spraying abrasive particles.
【図１】図１は、本発明のノズル本体部の１例の縦断面
図（ａ）及びＡ−Ａ矢視横断面図（ｂ）である。FIG. 1 is a vertical sectional view (a) and a lateral sectional view (b) taken along the line AA of an example of a nozzle body of the present invention.
【図２】図２は、本発明のノズル本体部の異なる例の縦
断面図である。FIG. 2 is a vertical cross-sectional view of a different example of the nozzle body of the present invention.
１、１' 基体
２、２' 噴射流路
４ａ、４ｂ、４ｃ、４ｄ、４ａ'、４ｃ' 板状ダイヤモ
ンド焼結体
５、５' ノズル先端の端面部
１０、１０' ノズル本体1, 1'Substrate 2, 2'Injection flow paths 4a, 4b, 4c, 4d, 4a ', 4c' Plate-shaped diamond sintered body 5, 5'Nozzle tip end face portion 10, 10 'Nozzle body
Claims (3)
周壁面に設けられた角溝に、板状ダイヤモンド焼結体を
嵌合し、固定したことを特徴とするノズル。1. A nozzle characterized in that a plate-shaped diamond sintered body is fitted and fixed in a square groove provided on each inner peripheral wall surface of an injection flow path having a polygonal cross-sectional shape.
項１記載のノズル。2. The nozzle according to claim 1, wherein the polygonal cross-sectional shape is a tetragonal to octagonal shape.
は２記載のノズル。3. The nozzle according to claim 1, which is a nozzle for jetting abrasive particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002140330A JP2003334760A (en) | 2002-05-15 | 2002-05-15 | nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002140330A JP2003334760A (en) | 2002-05-15 | 2002-05-15 | nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003334760A true JP2003334760A (en) | 2003-11-25 |
Family
ID=29701237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002140330A Pending JP2003334760A (en) | 2002-05-15 | 2002-05-15 | nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003334760A (en) |
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| JP2006159348A (en) * | 2004-12-07 | 2006-06-22 | Rosetsuku:Kk | Ultra-high pressure water nozzle and manufacturing method thereof |
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| JP2009531176A (en) * | 2006-03-24 | 2009-09-03 | イリノイ トゥール ワークス インコーポレイティド | Spray device with removable hard-coated tip |
| JP2013032994A (en) * | 2011-08-03 | 2013-02-14 | Sony Corp | Microchip and microparticle analyzing apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006159348A (en) * | 2004-12-07 | 2006-06-22 | Rosetsuku:Kk | Ultra-high pressure water nozzle and manufacturing method thereof |
| JP2007253081A (en) * | 2006-03-23 | 2007-10-04 | Nachi Fujikoshi Corp | Jet nozzle and grinding processing method |
| JP2009531176A (en) * | 2006-03-24 | 2009-09-03 | イリノイ トゥール ワークス インコーポレイティド | Spray device with removable hard-coated tip |
| US9459182B2 (en) | 2011-08-03 | 2016-10-04 | Sony Corporation | Microchip and particle analyzing apparatus |
| JP2013032994A (en) * | 2011-08-03 | 2013-02-14 | Sony Corp | Microchip and microparticle analyzing apparatus |
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| JP2014152394A (en) * | 2013-02-14 | 2014-08-25 | Hiroshima Prefecture | Diamond film body, diamond film component, and production method of them |
| CN103817026A (en) * | 2014-01-26 | 2014-05-28 | 四川大学 | Jet nozzle for processing optical element |
| CN103817026B (en) * | 2014-01-26 | 2016-04-20 | 四川大学 | Jet nozzle for processing optical element |
| JP2016120572A (en) * | 2014-12-25 | 2016-07-07 | マコー株式会社 | Nozzle body for wet blast treatment apparatus |
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| KR20160121750A (en) * | 2015-04-10 | 2016-10-20 | 한국광기술원 | Device for manufacturing phantom using 3d printer and manufacturing method thereof |
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| US20170368746A1 (en) * | 2015-04-10 | 2017-12-28 | Korea Photonics Technology Institute | Phantom production apparatus using 3d printer, and production method using same |
| CN106311519A (en) * | 2016-10-18 | 2017-01-11 | 李子木 | Automatic spraying device for graphene mixed liquid as new material and using method of automatic spraying device during electrical repair |
| CN106311519B (en) * | 2016-10-18 | 2018-08-28 | 李子木 | A kind of application method of new material graphene mixed liquor in electrical repair |
| JP2022085914A (en) * | 2020-11-28 | 2022-06-09 | 株式会社ワークス | Nozzle for bonding electronic components |
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