JP2661262B2 - Thermal spray gun - Google Patents
Thermal spray gunInfo
- Publication number
- JP2661262B2 JP2661262B2 JP1129604A JP12960489A JP2661262B2 JP 2661262 B2 JP2661262 B2 JP 2661262B2 JP 1129604 A JP1129604 A JP 1129604A JP 12960489 A JP12960489 A JP 12960489A JP 2661262 B2 JP2661262 B2 JP 2661262B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- spray gun
- nozzle
- thermal spray
- arc
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
- B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
- B05B7/224—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material having originally the shape of a wire, rod or the like
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Plasma Technology (AREA)
- Nozzles (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はアーク溶射ガンの改良に関わり、詳しくはア
ーク溶射ガンによる溶射作業性の向上と、溶射形状の改
善に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an arc spray gun, and more particularly, to an improvement in a spraying workability by an arc spray gun and an improvement in a sprayed shape.
従来の技術 従来、アーク溶射ガンは第４図に見られるように、２
本の溶射用線材１（以下ワイヤという）を先端で交差接
触するように、モータ２により回転するワイヤ送給ロー
ラ３で先端までワイヤ導管４及びワイヤノズル５を通じ
て送る。この時のワイヤ導管の一部に交流または直流を
通電する通電端子６を設け、ワイヤ１に導管４またはノ
ズル５を通じて通電できるようにしている。そして先端
で交差接触して、アーク熱により加熱溶融したワイヤ１
は二つのワイヤノズル５の中間にある円形のエアーノズ
ル７からの圧縮空気により微粒化および溶射皮膜の形成
を行う。2. Description of the Related Art Conventionally, as shown in FIG.
The thermal spray wire 1 (hereinafter referred to as a wire) is fed to the distal end by a wire feed roller 3 rotated by a motor 2 through a wire conduit 4 and a wire nozzle 5 so as to cross-contact at the distal end. At this time, an energizing terminal 6 for applying AC or DC is provided in a part of the wire conduit so that the wire 1 can be energized through the conduit 4 or the nozzle 5. The wire 1 is cross-contacted at the tip and heated and melted by arc heat.
Performs atomization and formation of a thermal spray coating by compressed air from a circular air nozzle 7 located between two wire nozzles 5.
発明が解決しようとする課題 そして以上のアーク溶射ガンは以下のような不都合な
点があった。つまり （１） 溶射施工時にワイヤノズル先端部に、微粒化し
たワイヤが付着し、二つのワイヤノズル間でスパークが
発生する。そしてワイヤノズル先端でのワイヤの融着に
よるワイヤ送給不良も少なくなかった。Problems to be Solved by the Invention The above arc spray gun has the following disadvantages. That is, (1) the atomized wire adheres to the tip of the wire nozzle at the time of thermal spraying, and a spark is generated between the two wire nozzles. In addition, wire feeding failure due to fusion of the wire at the tip of the wire nozzle was not small.
（２） 上記ワイヤ送給不良の結果、亜鉛やアルミニュ
ムなどの軟らかいワイヤは、ワイヤ送給ローラとガン先
端側導管との間で座屈を起こし、その結果２本のワイヤ
が接触してスパークや発火による溶射ガンの焼損に至る
こともしばしばあった。(2) As a result of the above wire feeding failure, soft wires such as zinc and aluminum buckle between the wire feeding roller and the gun tip side conduit, and as a result, the two wires come in contact with each other and spark or Burning of the spray gun by ignition often also resulted.
（３） また通電端子が１箇所のためワイヤへの接触通
電不良によるワイヤの溶融不良等の発生によりスムーズ
な溶射作業が行えなかった。(3) Further, since there is only one energizing terminal, smooth thermal spraying work could not be performed due to the occurrence of poor melting of the wire due to poor current conduction to the wire.
（４） しかも溶融金属の微粒化が二つのワイヤノズル
間にある円形のエアーノズルにより導かれる圧縮空気に
より行われるため溶射形状が一定でなく、また拡散しや
すいため小物の溶射には利用しにくく付着率も低かっ
た。(4) Moreover, since the atomization of the molten metal is performed by compressed air guided by a circular air nozzle between the two wire nozzles, the sprayed shape is not constant, and it is easy to diffuse, so that it is difficult to use for spraying small objects. The adhesion rate was also low.
本発明は溶射作業時の溶融微粒化したワイヤがワイヤ
ノズル先端部へ付着することによって発生するワイヤノ
ズルの破損やワイヤの送給不良、そしてその送給不良に
よって二次的に起こる溶射ガンの焼損、または通電不良
による溶射作業の中断といった溶射作業性の低下を防止
して、作業性の向上を図ることと、溶射形状を改善する
ことを目的とする。The present invention relates to damage to a wire nozzle caused by the atomization of the melted and atomized wire at the tip of the wire nozzle during wire spraying work, poor wire feed, and burnout of the spray gun secondary to the poor feed. Another object of the present invention is to improve the workability by preventing a decrease in the spraying workability such as interruption of the spraying work due to poor energization, and to improve the sprayed shape.
課題を解決するための手段 上記課題を解決するための本発明の溶射ガンは （１） ワイヤノズル部を分割可能な絶縁物で被覆して
なるものである。Means for Solving the Problems A thermal spray gun according to the present invention for solving the above-mentioned problems has the following features. (1) A wire nozzle portion is coated with a dividable insulator.
（２） またワイヤ送給ローラ近傍に絶縁物よりなる隔
壁を設けてなるものである。(2) A partition made of an insulating material is provided near the wire feed roller.
（３） さらに、各ワイヤ導管の２箇所に通電端子を設
け、二重通電可能としてなるものである。(3) In addition, two energizing terminals are provided at each of the wire conduits to enable double energization.
作用 前記（１）により溶融微粒化したワイヤがノズル先端
間に付着してスパークが発生しないようにする。また
（２）によりワイヤ座屈時にも２本のワイヤが互いに接
触することが無いようにする。また（３）により溶射形
状が絞り込まれて溶射金属の付着率が向上すると共に小
物への溶射も容易となる。Action The wire melted and atomized by the above (1) is prevented from adhering between the nozzle tips and causing sparks. Also, according to (2), the two wires are prevented from contacting each other even when the wires are buckled. Further, the sprayed shape is narrowed down by (3), so that the adhesion rate of the sprayed metal is improved, and the spraying on small items becomes easy.
実施例 第２図に示すようにエアーノズル７と二つのワイヤノ
ズル口11を有する二つの分割可能なナイロンやベークな
どの絶縁物で構成されるワイヤノズル用絶縁装着具を第
１図のようにワイヤノズル部に装着する。EXAMPLE 2 As shown in FIG. 2, an insulated wire nozzle mounting device comprising an air nozzle 7 and two dividable insulators such as nylon and bake having two wire nozzle ports 11 as shown in FIG. Attach to the wire nozzle.
つぎに第３図に示すように上記と同様の絶縁物を使用
した隔壁10を第１図に示すようにワイヤ間に平行に挿入
する。また第２図に示すようにエアーノズル７の形状を
矩形にする。Next, as shown in FIG. 3, a partition wall 10 using the same insulator as described above is inserted in parallel between the wires as shown in FIG. Further, as shown in FIG. 2, the shape of the air nozzle 7 is made rectangular.
更に第１図に示すようにワイヤ送給ローラの前後２箇
所に２対の導電端子６を設け、導管４及びワイヤノズル
５を介してワイヤに通電する。なお、１は溶接用線材
（ワイヤ）、２はモータ、３はワイヤ送給ローラ、８は
溶射皮膜、９は分割可能なワイヤノズル用絶縁装着具で
ある。Further, as shown in FIG. 1, two pairs of conductive terminals 6 are provided at two places before and after the wire feeding roller, and electricity is supplied to the wire via the conduit 4 and the wire nozzle 5. In addition, 1 is a welding wire (wire), 2 is a motor, 3 is a wire feed roller, 8 is a thermal spray coating, and 9 is a separable wire nozzle insulating mounting tool.
発明の効果 以上のように本発明によれば以下の効果が奏される。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.
（１） 溶融微粒化したワイヤのワイヤノズルへの付着
が無くなり、ワイヤノズル間のスパークによるワイヤノ
ズルの破損やワイヤノズル先端でのワイヤの融着による
ワイヤ送給不良が無くなる。(1) Adhesion of the melted and atomized wire to the wire nozzle is eliminated, and damage to the wire nozzle due to sparks between the wire nozzles and defective wire feeding due to fusion of the wire at the tip of the wire nozzle are eliminated.
（２） ワイヤ送給不良発生時に、ワイヤ送給ローラ部
での座屈したワイヤの接触が無いため、ワイヤ接触によ
るスパークやそのスパークによる溶射ガンの焼損が無く
なる。(2) When wire feeding failure occurs, there is no contact of the buckled wire at the wire feeding roller portion, so that spark due to wire contact and burning of the spray gun by the spark are eliminated.
（３） 二重通電によりワイヤへの通電不良が減少し溶
射作業の中断が減少する。(3) Due to the double energization, energization failure to the wire is reduced, and interruption of the thermal spraying operation is reduced.
（４） 上記（１），（２），（３）により溶射作業性
の向上が図れる。(4) The above (1), (2), and (3) can improve the spraying workability.
（５） 溶射形状が絞り込まれ小物への溶射が容易とな
るばかりか、付着率も向上し、工業上の利点は甚だ大き
い。(5) The sprayed shape is narrowed down, so that not only spraying on small items becomes easy, but also the adhesion rate is improved, and the industrial advantage is extremely large.
第１図は本発明の実施例を示すアーク溶射ガンの断面
図、第２図は本発明による分割可能なワイヤノズル用絶
縁装着具の外観斜視図、第３図は本発明によるワイヤ送
給ローラ部絶縁隔壁の外観斜視図である。第４図は従来
のアーク溶射ガンの断面図である。 １……溶射用線材（ワイヤ）、２……モータ、３……ワ
イヤ送給ローラ、４……ワイヤ導管、５……ワイヤノズ
ル、６……通電端子、７……エアーノズル、８……溶射
皮膜、９……分割可能なワイヤノズル用絶縁装着具、10
……ワイヤ送給ローラ部絶縁隔壁、11……ワイヤノズ
ル。FIG. 1 is a cross-sectional view of an arc spray gun showing an embodiment of the present invention, FIG. 2 is an external perspective view of an insulated mounting device for a splittable wire nozzle according to the present invention, and FIG. 3 is a wire feeding roller according to the present invention. It is an external appearance perspective view of a part insulating partition. FIG. 4 is a sectional view of a conventional arc spray gun. DESCRIPTION OF SYMBOLS 1 ... Wire for spraying (wire), 2 ... Motor, 3 ... Wire feeding roller, 4 ... Wire conduit, 5 ... Wire nozzle, 6 ... Electrical terminal, 7 ... Air nozzle, 8 ... Sprayed coating, 9 ... Separable wire nozzle insulation mounting tool, 10
…… Insulated partition for wire feed roller section, 11 …… Wire nozzle.
Claims (4)
割可能な絶縁物で被覆したことを特徴とする溶射ガン。1. A thermal spray gun characterized in that a wire nozzle portion at the tip of an arc thermal spray gun is covered with a dividable insulator.
縁物よりなる隔壁を設けたことを特徴とする溶射ガン。2. An arc spray gun, wherein a partition wall made of an insulating material is provided on a wire feeding roller portion of the arc spray gun.
通電するようにしたことを特徴とする溶射ガン。3. A thermal spray gun characterized in that current is applied to two places of each wire conduit of the arc thermal spray gun.
ズルを設けたことを特徴とする請求項1,2,3のいずれか
に記載の溶射ガン。4. The thermal spray gun according to claim 1, wherein a rectangular air nozzle is provided between the two wire nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1129604A JP2661262B2 (en) | 1989-05-23 | 1989-05-23 | Thermal spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1129604A JP2661262B2 (en) | 1989-05-23 | 1989-05-23 | Thermal spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02307555A JPH02307555A (en) | 1990-12-20 |
| JP2661262B2 true JP2661262B2 (en) | 1997-10-08 |
Family
ID=15013568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1129604A Expired - Lifetime JP2661262B2 (en) | 1989-05-23 | 1989-05-23 | Thermal spray gun |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2661262B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243739B3 (en) * | 2002-09-20 | 2004-05-19 | Daimlerchrysler Ag | Arc wire burner |
| CN113684441B (en) * | 2021-08-27 | 2023-04-07 | 江阴恩特莱特镀膜科技有限公司 | Electric arc spray gun |
-
1989
- 1989-05-23 JP JP1129604A patent/JP2661262B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02307555A (en) | 1990-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080613 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090613 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |