JPS6119770A - Preparation of spray deposited film - Google Patents
Preparation of spray deposited filmInfo
- Publication number
- JPS6119770A JPS6119770A JP59137233A JP13723384A JPS6119770A JP S6119770 A JPS6119770 A JP S6119770A JP 59137233 A JP59137233 A JP 59137233A JP 13723384 A JP13723384 A JP 13723384A JP S6119770 A JPS6119770 A JP S6119770A
- Authority
- JP
- Japan
- Prior art keywords
- spraying
- nozzle
- arc spraying
- arc
- coating
- 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
- 239000007921 spray Substances 0.000 title abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 15
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 7
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 7
- 238000007751 thermal spraying Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は溶射被膜製造方法に係り、特に鋼構造物もしく
はその素材への溶射被膜の形成手段に関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing a thermal spray coating, and particularly to a means for forming a thermal spray coating on a steel structure or its material.
（従来技術及び問題点）
一般に、金属溶射は橋梁・タンク・鉄塔その地鉄鋼構造
物の耐食性向上対策として実施されているが、周知の如
くアーク溶射による被膜表面は゛ガス溶射によるそれに
比較し、表面粗度は大きく、空孔率も高く、外観上好寸
しくない。一方、被膜の素地との密着性、曲げ加工性等
の被膜物性はアーク溶射の方がガス溶射に比べ、著しく
一良好である。この為、鉄鋼構造物に溶射被膜を形成さ
せるに際して、被膜物性を確保すると同時に美観を得る
方法として特開昭５７−２００５３号公報にて、先づア
ーク溶射にて下層被膜を形成させ、次にガス溶射にて上
層被膜を形成させる方法が提案されている。しかしなが
ら、この方法に於ても、未溶融の粗大粒子が上層被膜層
に付着し、美観を損ねること、ガス溶射被膜は物性値特
に被膜密着力に乏しく、アーク溶射層とガス溶射層との
間で層間破壊を起させ易い等の問題点も生じている。(Prior art and problems) In general, metal spraying is carried out as a measure to improve the corrosion resistance of bridges, tanks, steel towers, and other steel structures, but as is well known, the coating surface produced by arc spraying is The roughness is large, the porosity is high, and the appearance is not good. On the other hand, the physical properties of the coating, such as adhesion to the substrate and bending workability, are significantly better with arc spraying than with gas spraying. For this reason, when forming a thermally sprayed coating on a steel structure, Japanese Patent Application Laid-Open No. 57-20053 proposes a method of ensuring the physical properties of the coating and at the same time obtaining an aesthetic appearance, by first forming a lower layer coating by arc spraying, and then A method has been proposed in which the upper layer film is formed by gas spraying. However, even with this method, unmelted coarse particles adhere to the upper coating layer, impairing its appearance, and the gas sprayed coating has poor physical properties, especially coating adhesion, and the gap between the arc sprayed layer and the gas sprayed layer is poor. There are also problems such as the tendency to cause interlayer failure.
（発明の構成）
本発明はか＼る実情に鑑みなされたものであって、その
要旨は鋼材表面にアーク溶射により形成した金属溶射被
膜の上に、更にクローズドノズルによるアーク溶射被覆
することを特徴とする溶射被膜製造方法にある。(Structure of the Invention) The present invention has been made in view of the above-mentioned circumstances, and its gist is that on top of the metal sprayed coating formed on the surface of steel by arc spraying, an arc sprayed coating is further applied using a closed nozzle. There is a method for manufacturing a thermal spray coating.
以下に本発明の詳細な説明する。The present invention will be explained in detail below.
まず、本発明に於て、鋼材とは一般にＪＩＳで規定され
ている鋼種もしくはＪＩＳに準じる規定の鋼板、形鋼、
鋼管等の鋼材を指すものであって、前記の如き橋梁・タ
ンク・鉄塔、その地鉄鋼構造物の素材に使用されるもの
を指す。First, in the present invention, steel materials generally include steel types specified by JIS or specified steel plates, shaped steel,
Refers to steel materials such as steel pipes, which are used as materials for bridges, tanks, steel towers, and other steel structures such as those mentioned above.
次に本発明に於てはか＼る鋼材表面に金属溶射を行なう
ものであるが、こ＼で云う金属とはＺｎ。Next, in the present invention, metal spraying is performed on the surface of the steel material, and the metal referred to here is Zn.
ＡＡ、 Ｎｉ、 Ｃｒ等の金属又はそれらの合金を指し
、前記の用途に満足する様な防食及び耐食性に優れた金
属を対象とするものである。This refers to metals such as AA, Ni, and Cr, or alloys thereof, and targets metals with excellent corrosion protection and corrosion resistance that satisfy the above-mentioned uses.
本発明はこの様な金属をまず通常のアーク溶射手段を用
いて、鋼材表面に溶射被膜を形成した後、更にその上を
クローズドノズルによるアーク溶射により被覆するもの
であるが、この場合の通常のアーク溶射とは電流１００
〜４００Ａ、電圧２Ｏ−５０Ｖ。In the present invention, a thermal spray coating is first formed on the surface of the steel material using a normal arc spraying method, and then the coating is further coated by arc spraying using a closed nozzle. What is arc spraying? Electric current 100
~400A, voltage 2O-50V.
溶射距離１００〜３００朋、アトマイズガス圧４０〜８
０ｐｓｉの条件で実施されるものである。Spraying distance 100-300 m, atomizing gas pressure 40-8 m
It is carried out under the condition of 0 psi.
こ＼で、本発明に於て、最も重要な点はか＼る溶射被膜
上に前記したクローズドノズルによるアーク溶射被覆を
施すことにある。The most important point in the present invention is to apply arc spray coating to the thermal spray coating using the above-mentioned closed nozzle.
第１図はクローズドノズルの構造を模式的に表わす図を
、第２図は通常のアーク溶射に用いられるノズルの構造
を模式的に表わす図であって、これらの図に於て、１は
供給ワイヤー、２はコンタクトチューブ、３はノズル、
４はノズル孔を表わす。第２図の通常のアーク溶射ノズ
ルはコンタクトチューブ２から送シ出される供給ワイヤ
ー１゜１間にあり、ノズル孔４を通じて、アトマイズガ
ス５が噴射される。一方、第１図のクローズドノズルの
ノズル孔４は第２図の溶射ノズルよりもノズル孔数を増
している。この為、溶融粒子を微細化させるに役立つア
トマイズガス量を増加させることができる。本発明は作
業能率をおとさずに、アークガンの併用使用により表面
外観とＪＡ［物性を確保することができるものであって
、例えばクローズドアークガンを使用する代りに、通常
のアークガンを使用して、ワイヤーの供給速度を抑制し
て、すなわち作業能率をおとして、第２層を形成させる
ことも可能ではあるが、かかる手段はあまり実用的でな
い。Fig. 1 is a diagram schematically showing the structure of a closed nozzle, and Fig. 2 is a diagram schematically showing the structure of a nozzle used for normal arc spraying. wire, 2 is contact tube, 3 is nozzle,
4 represents a nozzle hole. The conventional arc spray nozzle shown in FIG. 2 is located between a supply wire 1.1 sent out from a contact tube 2, and an atomized gas 5 is injected through a nozzle hole 4. On the other hand, the number of nozzle holes 4 of the closed nozzle shown in FIG. 1 is greater than that of the thermal spray nozzle shown in FIG. 2. Therefore, it is possible to increase the amount of atomizing gas that is useful for making the molten particles finer. The present invention is capable of ensuring surface appearance and JA properties by using an arc gun in combination without reducing work efficiency.For example, instead of using a closed arc gun, a normal arc gun is used to Although it is possible to form the second layer by suppressing the wire feeding speed, that is, by reducing the working efficiency, such a method is not very practical.
この様にして、アーク溶射した後、クローズドノズルで
更に溶射すると未溶融粒子のない表面粗度の小さなスム
ーズな表面被膜が形成されると同時に、上層・下層共に
アーク溶射被膜の均一な被膜が得られるこ−とになる。In this way, after arc spraying, by further spraying with a closed nozzle, a smooth surface coating with small surface roughness without unmelted particles is formed, and at the same time, a uniform arc sprayed coating is obtained for both the upper and lower layers. It will be.
なお、膜厚については特に限定するものではないが、実
用的見地からは通常のアーク溶射による膜厚はほぼ５０
μ〜５００μ程度、クローズドノズル溶射による膜厚は
ほぼ５０μ〜２００μ程度が望ましい。There is no particular limitation on the film thickness, but from a practical standpoint, the film thickness by ordinary arc spraying is approximately 50%.
The film thickness by closed nozzle thermal spraying is preferably about 50 to 200 μ.
以下、実施例によυ本発明の効果をさらに具体的に示す
。EXAMPLES Hereinafter, the effects of the present invention will be illustrated in more detail with reference to Examples.
・実施例
下記の溶射条件により第１表に示す溶射材料を用いて溶
射被模層を形成した。作成した被膜の表面性状を第１表
に合せて示す。・Example A thermal spraying layer was formed using the thermal spraying materials shown in Table 1 under the thermal spraying conditions shown below. The surface properties of the prepared coatings are also shown in Table 1.
溶射条件：
０溶射距離： ２００ ｖｒｒｎ一定
Ｏアーク溶射条件：電圧２８ｖ、電流２００Ａ 、ワイ
ヤー径１．６ｍｍ０ガス溶射条件、 アセチレン−酸素
、圧力３．１ ｋｇ／Ｃｄ 、ワイヤー径３．０朋グ
ク０−ズド）−Ｘ″：電圧２８■、電流２００Ａ、ワイ
ヤー径１６皿グのアー名容射条件
○アトマイズドガス：アルゴンガス６０ｐｓｉ第 １
表
（発明の効果）
上述のように本発明の方法によれば、表面粗度の小さな
粗大粒子発生の無い美観に優れだ溶射被膜を形成するこ
とが出来るのである。Thermal spraying conditions: 0 Spraying distance: 200 Vrrn constant O arc spraying conditions: Voltage 28V, current 200A, wire diameter 1.6mm0 Gas spraying conditions, acetylene-oxygen, pressure 3.1 kg/Cd, wire diameter 3.0 mm -X'': Voltage 28cm, current 200A, wire diameter 16mm Atomized gas: Argon gas 60psi 1st
Table (Effects of the Invention) As described above, according to the method of the present invention, it is possible to form a thermally sprayed coating with excellent aesthetic appearance and no generation of coarse particles with small surface roughness.
第１図はクローズドノズルの模式図、
第２図は通常アーク溶射に用いられるノズル構造の模式
図である。
１・・・供給ワイヤー（溶射材料）
２・・コンタクトチューブ
３・・・ノズル
４・・・ノズル孔
５・・・アトマイズドガス
第１図
第２図Fig. 1 is a schematic diagram of a closed nozzle, and Fig. 2 is a schematic diagram of a nozzle structure normally used for arc thermal spraying. 1... Supply wire (thermal spray material) 2... Contact tube 3... Nozzle 4... Nozzle hole 5... Atomized gas Figure 1 Figure 2
Claims (1)
に、更にクローズドノズルによるアーク溶射にて被覆す
ることを特徴とする溶射被膜製造方法。1. A method for producing a thermal spray coating, which comprises further applying an arc spray coating using a closed nozzle on top of a metal spray coating formed on the surface of a steel material by arc spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59137233A JPS6119770A (en) | 1984-07-04 | 1984-07-04 | Preparation of spray deposited film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59137233A JPS6119770A (en) | 1984-07-04 | 1984-07-04 | Preparation of spray deposited film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6119770A true JPS6119770A (en) | 1986-01-28 |
Family
ID=15193890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59137233A Pending JPS6119770A (en) | 1984-07-04 | 1984-07-04 | Preparation of spray deposited film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6119770A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02170964A (en) * | 1988-12-23 | 1990-07-02 | Miyoshi Nakagawa | Method and apparatus for arc thermal spraying |
| FR2757879A1 (en) * | 1997-01-02 | 1998-07-03 | Gen Electric | SPRAYING PROCESS USING THE ELECTRIC ARC FOR THE APPLICATION OF A METAL COATING INCREASING THE TRANSFER OF HEAT AND PART THUS OBTAINED |
| US6246247B1 (en) | 1994-11-15 | 2001-06-12 | Formfactor, Inc. | Probe card assembly and kit, and methods of using same |
| US6441315B1 (en) | 1998-11-10 | 2002-08-27 | Formfactor, Inc. | Contact structures with blades having a wiping motion |
| US6945827B2 (en) | 2002-12-23 | 2005-09-20 | Formfactor, Inc. | Microelectronic contact structure |
| WO2006086042A3 (en) * | 2004-12-07 | 2006-09-28 | Boeing Co | Wire-arc spraying of a zinc-nickel coating |
| US7122760B2 (en) | 2002-11-25 | 2006-10-17 | Formfactor, Inc. | Using electric discharge machining to manufacture probes |
-
1984
- 1984-07-04 JP JP59137233A patent/JPS6119770A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02170964A (en) * | 1988-12-23 | 1990-07-02 | Miyoshi Nakagawa | Method and apparatus for arc thermal spraying |
| US6246247B1 (en) | 1994-11-15 | 2001-06-12 | Formfactor, Inc. | Probe card assembly and kit, and methods of using same |
| FR2757879A1 (en) * | 1997-01-02 | 1998-07-03 | Gen Electric | SPRAYING PROCESS USING THE ELECTRIC ARC FOR THE APPLICATION OF A METAL COATING INCREASING THE TRANSFER OF HEAT AND PART THUS OBTAINED |
| US6441315B1 (en) | 1998-11-10 | 2002-08-27 | Formfactor, Inc. | Contact structures with blades having a wiping motion |
| US6825422B2 (en) | 1998-11-10 | 2004-11-30 | Formfactor, Inc. | Interconnection element with contact blade |
| US7122760B2 (en) | 2002-11-25 | 2006-10-17 | Formfactor, Inc. | Using electric discharge machining to manufacture probes |
| US6945827B2 (en) | 2002-12-23 | 2005-09-20 | Formfactor, Inc. | Microelectronic contact structure |
| US7731546B2 (en) | 2002-12-23 | 2010-06-08 | Formfactor, Inc. | Microelectronic contact structure |
| WO2006086042A3 (en) * | 2004-12-07 | 2006-09-28 | Boeing Co | Wire-arc spraying of a zinc-nickel coating |
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