JPH01274861A - Extremely high-speed thermal spraying device - Google Patents
Extremely high-speed thermal spraying deviceInfo
- Publication number
- JPH01274861A JPH01274861A JP63103216A JP10321688A JPH01274861A JP H01274861 A JPH01274861 A JP H01274861A JP 63103216 A JP63103216 A JP 63103216A JP 10321688 A JP10321688 A JP 10321688A JP H01274861 A JPH01274861 A JP H01274861A
- Authority
- JP
- Japan
- Prior art keywords
- thermal spraying
- rails
- current
- gun
- spraying device
- 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.)
- Granted
Links
- 238000007751 thermal spraying Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 58
- 230000001133 acceleration Effects 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 abstract description 4
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000007750 plasma spraying Methods 0.000 abstract 3
- 239000008246 gaseous mixture Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 24
- 239000002360 explosive Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は超高速溶射装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an ultrahigh-speed thermal spraying device.
セラミックス等硬度の大きい溶射材料を高速で素材に衝
突させ、素材表面の硬度を上げて素材の強度を改良する
溶射装置は、粉末状の溶射材料と酸素とアセチレンの混
合ガスや不活性ガス等とを混合し、この混合したガスを
燃焼又は爆発させることによシ溶射材料を溶融］−てプ
ラズマジェットを発生させ、溶射材料を素材表面に高速
で衝突させるものであり、従来装置としては、例えば、
酸素とアセチレンの混合ガスを燃焼させる酸素アセチレ
ントー・・チ、酸素とアセチレンの混合ガスを爆発燃焼
させる爆発溶射ガン（Ｄガン）、アーク中にＡｒ 、
Ｈｅ 、 Ｎ２ 等の不活性ガスを供給するプラズマ
溶射トーチ等が知られている。Thermal spraying equipment, which improves the strength of the material by bombarding the material with high hardness such as ceramics at high speed to increase the hardness of the surface of the material, uses powdered thermal spraying material and a mixed gas of oxygen and acetylene, an inert gas, etc. The mixed gas is combusted or exploded to melt the sprayed material and generate a plasma jet, which causes the sprayed material to collide with the surface of the material at high speed. ,
An oxygen-acetylene torch that burns a mixed gas of oxygen and acetylene, an explosive thermal spray gun (D gun) that explodes and burns a mixed gas of oxygen and acetylene, Ar in the arc,
Plasma spray torches that supply inert gas such as He, N2, etc. are known.
し、かじながら、従来の溶射装置での溶射材料の粒子飛
行速度は、第４図線図に示すように、せいぜい７００
ｍ／ｓ程度である。・一方素材に固着した溶射材料の性
能は接着力と気孔率とで表され、接着力が大きい程ま六
気孔率が小さい程溶射材刺の性能は向上するものである
が、第５図線図に示すように、上述の溶射材料の最大粒
子飛行速度７００ ｒｒｖ′ｓでは、接着力の平均値は
１４ ｋｊｇ／ｒｎｒｎ 、気孔率の平均値は０．５
％である。However, as shown in the diagram in Figure 4, the particle flight speed of the thermal spray material in conventional thermal spray equipment is at most 700
It is about m/s.・On the other hand, the performance of the sprayed material fixed to the material is expressed by the adhesive force and porosity, and the higher the adhesive force and the lower the porosity, the better the performance of the sprayed material. As shown in the figure, at the maximum particle flight velocity of 700 rrv's of the above-mentioned thermal spray material, the average value of the adhesive force is 14 kjg/rnrn, and the average value of the porosity is 0.5.
%.
従ってこの接着力と気孔率とをこの値以上に改良し溶射
材料の性能を向上させるためには、溶射材料の粒子飛行
速度を、従来装置での粒子飛行速度限界７００ ｍ／ｓ
を越えて大きくする必要がある。Therefore, in order to improve the adhesion and porosity beyond these values and improve the performance of the thermal sprayed material, the particle flight speed of the thermal sprayed material must be set to 700 m/s, which is the particle flight speed limit of conventional equipment.
It needs to be bigger than that.
本発明は、このような事情に鑑みて提案されたもので、
溶射材料の粒子飛行速度を高速に加速し、溶射材料の接
着力と気孔率とを改良し、素材表面の硬度を」二げるこ
とができる超高速溶射装置を提供することを目的とする
。The present invention was proposed in view of these circumstances, and
The purpose of the present invention is to provide an ultra-high-speed thermal spraying device capable of accelerating the particle flight speed of a thermal spraying material to a high speed, improving the adhesion and porosity of the thermal spraying material, and reducing the hardness of the surface of the material.
そのために本発明は、粉末状溶射材料を混合したガスを
燃焼又は爆発させて噴射口から高速プラズマ状溶射材料
を噴出させる溶射装置と、上記溶射装置の噴射口の前方
に同噴射口と同軸的に配置され上記プラズマ状溶射材料
を挾んで対峙する一対の適宜長さの導電性材レール及び
同レールへの電流印加回路からなる加速ガンとを具えた
ことを特徴とする。To this end, the present invention provides a thermal spraying device that combusts or explodes a gas mixed with a powdered thermal spraying material to eject high-velocity plasma-like thermal spraying material from a nozzle, and a thermal spraying device that is arranged in front of the nozzle of the thermal spraying device and coaxially with the nozzle. The present invention is characterized by comprising a pair of conductive material rails of an appropriate length disposed opposite to each other with the plasma sprayed material sandwiched therebetween, and an acceleration gun consisting of a current application circuit to the rails.
溶射装置内の混合ガスが燃焼又は爆発して生成された高
速プラズマ状溶射材料が、前方の加速ガンの一対の導電
性材レールの間に入ってきたときに同レールに大電流を
流すと、高速プラズマ状溶射材料はローレンツ力により
はソロ倍程度の超高速に加速される。When the high-velocity plasma spray material generated by combustion or explosion of the mixed gas in the thermal spray equipment enters between a pair of conductive material rails in the front acceleration gun, a large current is passed through the rails. The high-velocity plasma-like sprayed material is accelerated by the Lorentz force to an ultra-high velocity approximately twice that of Solo.
本発明超高速溶射装置を爆発溶射ガンと組合わせた場合
の一実施例を図面について説明すると、第１図はその縦
断面図、第２図は第１図の■−■に沿った横断面図、第
３図は同上の作用の説明図である。An embodiment in which the ultra-high-speed thermal spraying apparatus of the present invention is combined with an explosive thermal spray gun is explained with reference to the drawings. Fig. 1 is a longitudinal cross-sectional view thereof, and Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1. FIG. 3 is an explanatory diagram of the same effect as above.
第１図、第２図において、１０は既存の爆発溶射ガンで
、ガン本体１１の一端に噴射口１２、他端に溶射材料粉
末供給口１３が設けられるとともに、両目の中間に酸素
供給口１４、アセチレン供給口１５及び窒素供給口１６
が設けられ、かつこれら燃料供給口に対向してスパーク
プラグ１７が配置されている。In FIGS. 1 and 2, reference numeral 10 denotes an existing explosive thermal spray gun, which has an injection port 12 at one end of a gun body 11, a thermal spray material powder supply port 13 at the other end, and an oxygen supply port 14 located between the two eyes. , acetylene supply port 15 and nitrogen supply port 16
are provided, and a spark plug 17 is arranged opposite to these fuel supply ports.
２０は上記爆発溶射ガン１ｏの前方にその噴射口１２に
接近して、ガン本体１１と同一軸線上に配設された加速
ガンで、鋼製のチューブ２１の中に＠線を挾んで対峙す
る一対の銅又は錫製の適宜長さのレール２２ａ、２２ｂ
が内蔵され、エポキシ樹脂等の絶縁物２３で固定されて
おり、またこのレール２２ａ、２２ｂには電源２４．ス
イッチ２５を備えた電流印加回路２６が接続されている
。Reference numeral 20 denotes an acceleration gun disposed in front of the explosive thermal spray gun 1o, close to its injection port 12, on the same axis as the gun body 11, and facing the explosion spray gun 1o with the @ wire sandwiched in the steel tube 21. A pair of copper or tin rails 22a, 22b of appropriate length
is built-in and fixed with an insulator 23 such as epoxy resin, and the rails 22a and 22b are connected to a power source 24. A current application circuit 26 including a switch 25 is connected.
なお３０は上記加速ガン２０の出口端に対向して設けら
れ、爆発溶射ガン１０から噴射され加速ガン２０で加速
された超高速のプラズマ状溶射材料３１が衝突溶射され
る素材である。Reference numeral 30 is provided opposite the outlet end of the acceleration gun 20, and is a material onto which the ultra-high velocity plasma spray material 31 injected from the explosive spray gun 10 and accelerated by the acceleration gun 20 is subjected to collision spraying.
このような装置において、爆発溶射ガン１゜のスパーク
プラグ１７が点火し、酸素とアセチレ／の混合ガスが爆
発して発生したプラズマ状溶射材料３１が、加速ガン２
０のレール２２ａ 、２２ｂの間に入ってくると、電流
印加回路２６のスイッチ２５が閉じられ、第６図に示す
よりに、電源２４からレール２２ａ−フラズマ状溶射材
料３１−レール２２ｂの方向に電流夏２７が流れる。In such a device, a spark plug 17 of an explosive thermal spray gun 1° ignites, and a mixed gas of oxygen and acetylene explodes to generate plasma-like thermal spray material 31, which is transferred to an accelerating gun 2.
0 between the rails 22a and 22b, the switch 25 of the current application circuit 26 is closed, and as shown in FIG. Current summer 27 flows.
するとｖ−ｘ２２ａ、２２ｂを流れる電流１２７によシ
、プラズマ状溶射材料６１には磁場Ｂ２８が発生し、プ
ラズマ状溶射材料３１を流れる電流Ｉとこの磁場Ｂとの
相互作用により、プラズマ状溶射材料３１を加速する方
向に、次の（１）式のローレンツ力Ｆがプラズマ状溶射
材料３１に作用する。Then, a magnetic field B28 is generated in the plasma sprayed material 61 due to the current 127 flowing through the v-x 22a and 22b, and due to the interaction between the current I flowing through the plasma sprayed material 31 and this magnetic field B, the plasma sprayed material A Lorentz force F expressed by the following equation (1) acts on the plasma sprayed material 31 in a direction that accelerates the plasma sprayed material 31.
Ｆ＝ＩＢ ・・・（１）こ＼で、
レール２２ａ、２２ｂの単位長さ当たりの自己インダク
タンスをＬとすると、単位長さのプラズマ状溶射材料３
１に作用す従りて、電源２４のコンデンサーキャパシタ
ンスＣと最大電圧Ｖ、レール２２ａ、２２ｂの単位長さ
当たりの自己インダクタンスＬ。F=IB...(1) Here,
If the self-inductance per unit length of the rails 22a and 22b is L, then the plasma-like thermal spray material 3 of the unit length
1, thus the capacitor capacitance C and the maximum voltage V of the power supply 24, and the self-inductance L per unit length of the rails 22a, 22b.
及び電流印加回路２６の抵抗几の組み合わせによ〕、プ
ラズマ状溶射材料３１の粒子飛行速度は７００ ｍ／ｓ
から２０００ｍ／Ｓ程度に上げることが可能となる。and the resistance of the current application circuit 26], the particle flight speed of the plasma sprayed material 31 is 700 m/s.
It becomes possible to increase the speed from 2000 m/s to about 2000 m/s.
以下に電流印加回路２６の設計例を示−ｊヶ１回の爆発
で衝突させる溶射材料の重量を１ノとすると、初期速度
ｖ、”７００ｍ１５から最終速度ｖ（＝ ２０００ｍ／
ｓに加速するのに必要な運動エネルギＥは次のよってな
る。An example of the design of the current application circuit 26 is shown below. Assuming that the weight of the thermal spray material to be collided in one explosion is 1, initial velocity v, 700 m15 to final velocity v (= 2000 m/
The kinetic energy E required to accelerate to s is given by:
Ｃ（２Ｘ１０ ） −（０，７Ｘ１０ ”） ）＝０
，１７９Ｘ １０ ｋＰＩＩｍｍ＝ １７９ ｋｙ−ｍ
＝１７５５Ｊ
電源２４の貯蔵エネルギＥ。の１０％が有効エネルギに
使用されると仮定すると、電源２４のコンデンサーキャ
パシタンスＣトｔ 圧Ｖは次の（３）式の条件を満足す
る必要がある。C(2X10)-(0,7X10'')=0
,179X 10 kPIImm= 179 ky-m
=1755J Stored energy E of power supply 24. Assuming that 10% of is used for effective energy, the capacitor capacitance Ct pressure V of the power supply 24 needs to satisfy the condition of the following equation (3).
Ｅ・・ユＣＶ２＞ １０ Ｘ １７５５ ＝ １７５５
０ Ｊ・◇・（３）
次にレール２２ａ、２２ｂの長さをｔとすると、プラズ
マ状溶射材料３１がレール２２ａ。E...Yu CV2> 10 x 1755 = 1755
0 J・◇・(3) Next, assuming that the length of the rails 22a and 22b is t, the plasma sprayed material 31 is the rail 22a.
２２ｂの間に存在する時間Ｔは次の（４）式で与えられ
る。The time T existing during 22b is given by the following equation (4).
電源２４のコンデンサーキャパシタンスを０１回回路体
のインダクタンスをＬとすると。Let the capacitor capacitance of the power supply 24 be 01 times and the inductance of the circuit body be L.
電流Ｉ２７の流れる時間ｔは次の（５）式で与えられる
。The time t during which the current I27 flows is given by the following equation (5).
ｔ＝πｊア Ｑ・・（５）従ってプラズマ
状溶射材料３１がレール２２ａ 、２２ｂの間に存在す
る間、電流Ｉ２７を流し続けるためには、電源２４のコ
ンデンサーキャパシタンスＣと回路全体のインダクタン
スＬとは、次の（６）式の条件を満足する必要がある。t=πja Q...(5) Therefore, in order to keep the current I27 flowing while the plasma sprayed material 31 exists between the rails 22a and 22b, the capacitance C of the power supply 24 and the inductance L of the entire circuit must be must satisfy the condition of the following equation (6).
要するに本発明によれば、粉末状溶射材料を混合したガ
スを燃焼又は爆発させて噴射口から高速プラズマ状溶射
材料を噴出させる溶射装置と、上記溶射装置の噴射口の
前方に同噴射口と同軸的に配置され上記プラズマ状溶射
材料を挾んで対峙する一対の適宜長さの導電性材レール
及び同レールへの電流印加回路からなる加速ガンとを具
えたことにより、溶射材料の粒子飛行速度を高速に加速
し、溶射材料の接着力と気孔率とを改良し、素材表面の
硬度を上げることができる超高速溶射装置を得るから、
本発明は産業上極めて有益なものである。In short, according to the present invention, there is provided a thermal spraying device that combusts or explodes a gas mixed with a powdered thermal spraying material to eject high-velocity plasma-like thermal spraying material from a nozzle, and a thermal spraying device that is located in front of the nozzle of the thermal spraying device and coaxial with the nozzle. A pair of conductive material rails of an appropriate length are arranged to face each other with the plasma-like thermal spray material sandwiched between them, and an acceleration gun consisting of a current application circuit to the rails is provided. By obtaining an ultra-high-speed thermal spraying device that can accelerate at high speed, improve the adhesion and porosity of thermal sprayed materials, and increase the hardness of the material surface,
The present invention is extremely useful industrially.
第１図は本発明超高速溶射装置を爆発溶射ガンと組合わ
せた場合の一実施例の縦断面図、第２図は第１図の■−
■に沿った横断面図。
第３図は同上の作用の説明図である。
第４図は従来の溶射装置と溶射材料の粒子飛行速度の関
係を示す線図、第５図は従来の溶射装置における粒子飛
行速度と気孔率及び接着力の関係を示す線図である。
１０・・・爆発溶射ガン、１１・・・ガン本体、１２・
・・噴射口、１３・・・溶射材料粉末供給口、１４・・
・酸素供給口、１５・・・アセチレン供給口、１６・・
・窒素供給口、１７・・・スパークプラグ、２０・・・
加速ガン、２１・・・チューブ、２２ａ。
２２ｂ・・・レール、２３・・・絶縁物、２４・・・電
源、２５・・・スイッチ、２６・・・電流印加回路、３
０・・・素材、３１・・・プラズマ状溶射材料。
代理人 弁理士 塚 本 正 文
第、３図
′″Ｘ２６．□１゜。。４
第４図
第５図
籾″Ｊ４行遼友（’％）Figure 1 is a vertical sectional view of an embodiment of the present invention in which the ultra-high-speed thermal spraying device is combined with an explosive thermal spray gun, and Figure 2 is a -
Cross-sectional view along ■. FIG. 3 is an explanatory diagram of the same effect as above. FIG. 4 is a diagram showing the relationship between the particle flight speed of a conventional thermal spraying device and a thermal spray material, and FIG. 5 is a diagram showing the relationship between the particle flight speed, porosity, and adhesive force in the conventional thermal spraying device. 10... Explosive thermal spray gun, 11... Gun body, 12.
...Injection port, 13...Thermal spray material powder supply port, 14...
・Oxygen supply port, 15...Acetylene supply port, 16...
・Nitrogen supply port, 17...Spark plug, 20...
Acceleration gun, 21...tube, 22a. 22b...Rail, 23...Insulator, 24...Power source, 25...Switch, 26...Current application circuit, 3
0...Material, 31...Plasma-like thermal spray material. Agent Patent Attorney Masa Tsukamoto Letter No. 3'''
Claims (1)
噴射口から高速プラズマ状溶射材料を噴出させる溶射装
置と、上記溶射装置の噴射口の前方に同噴射口と同軸的
に配置され上記プラズマ状溶射材料を挾んで対峙する一
対の適宜長さの導電性材レール及び同レールへの電流印
加回路からなる加速ガンとを具えたことを特徴とする超
高速溶射装置。A thermal spraying device that combusts or explodes a gas mixed with powdered thermal spraying material to eject high-velocity plasma-like thermal spraying material from a nozzle; An ultra-high-speed thermal spraying device characterized by comprising a pair of conductive material rails of appropriate length that face each other with a thermal spraying material in between, and an acceleration gun consisting of a current application circuit to the rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63103216A JPH0775690B2 (en) | 1988-04-26 | 1988-04-26 | Ultra high speed spraying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63103216A JPH0775690B2 (en) | 1988-04-26 | 1988-04-26 | Ultra high speed spraying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01274861A true JPH01274861A (en) | 1989-11-02 |
| JPH0775690B2 JPH0775690B2 (en) | 1995-08-16 |
Family
ID=14348308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63103216A Expired - Lifetime JPH0775690B2 (en) | 1988-04-26 | 1988-04-26 | Ultra high speed spraying equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0775690B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090653A (en) * | 2020-09-17 | 2020-12-18 | 冯娟 | Electromagnetic acceleration-based paint spray gun |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105862A (en) * | 1982-12-10 | 1984-06-19 | Seiko Epson Corp | Electrostatic treatment apparatus |
-
1988
- 1988-04-26 JP JP63103216A patent/JPH0775690B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105862A (en) * | 1982-12-10 | 1984-06-19 | Seiko Epson Corp | Electrostatic treatment apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090653A (en) * | 2020-09-17 | 2020-12-18 | 冯娟 | Electromagnetic acceleration-based paint spray gun |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0775690B2 (en) | 1995-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1162580A (en) | Multiple stage magnetic railgun accelerator | |
| US3309873A (en) | Plasma accelerator using hall currents | |
| US6001426A (en) | High velocity pulsed wire-arc spray | |
| US6124563A (en) | Pulsed electrothermal powder spray | |
| CN103492084B (en) | Axial feed type plasma spray plating appts | |
| JPH02236999A (en) | Plasma generator and plasma generating method | |
| GB1515824A (en) | Plasma-arc spraying torch | |
| US5612506A (en) | Method of and apparatus for generating a high pressure gas pulse using fuel and oxidizer that are relatively inert at ambient conditions | |
| WO1998035760A1 (en) | Improved plasma transferred wire arc thermal spray apparatus and method | |
| GB1277488A (en) | Discharge head for a metallizing device | |
| GB1435138A (en) | Ignition of high frequency plasma torches | |
| US3212914A (en) | Electric pulse coating process and apparatus | |
| CN102428203B (en) | Nozzle for a thermal spray gun and method of thermal spraying | |
| JPH01274861A (en) | Extremely high-speed thermal spraying device | |
| US7182279B2 (en) | Atomizer for atomizing molten metal | |
| GB869791A (en) | Material deposition process employing a collimated electric arc | |
| JPH0361353A (en) | Ultra-high speed thermal spraying device | |
| GB1003118A (en) | Method of fusing atomizing and spraying a refractory oxide | |
| JPH0368469A (en) | Method and device for plasma wire spraying | |
| CN110131120A (en) | Solid ablation type magnetic plasma thruster | |
| Manzon | Acceleration of macroparticles for controlled thermonuclear fusion | |
| US4706542A (en) | Low voltage arc formation in railguns | |
| GB863190A (en) | Heat-fusible material spray gun and method for coating a surface with a heat-fusiblematerial | |
| JP2587459B2 (en) | Thermal spray equipment | |
| GB959472A (en) | Improvements in or relating to plasma jet torches |