JPS5889971A - Curing method for ultraviolet-ray curing paint applied to external surface of steel pipe - Google Patents
Curing method for ultraviolet-ray curing paint applied to external surface of steel pipeInfo
- Publication number
- JPS5889971A JPS5889971A JP18685581A JP18685581A JPS5889971A JP S5889971 A JPS5889971 A JP S5889971A JP 18685581 A JP18685581 A JP 18685581A JP 18685581 A JP18685581 A JP 18685581A JP S5889971 A JPS5889971 A JP S5889971A
- Authority
- JP
- Japan
- Prior art keywords
- ultraviolet
- steel pipe
- irradiation
- curing
- paint applied
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、鋼管外面に塗布した紫外線硬化塗料を均一
硬化させることができる方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for uniformly curing an ultraviolet curing coating applied to the outer surface of a steel pipe.
紫外線硬化塗料は、鋼材表面の防錆効果が大きいことか
ら、近年、鋼板等の他に鋼管の外面にも紫外線硬化塗料
が塗布されるようになってきた。In recent years, UV-curable paints have come to be applied to the outer surfaces of steel pipes as well as steel plates, etc., because UV-curable paints have a large rust-preventing effect on the surface of steel materials.
鋼管外面に塗−布された紫外線硬化塗料は、例えば紫外
線照射ラングからの紫外線を照射することによって硬化
させることができる。一方、鋼管外面に塗布した紫外線
硬化塗料は、均一硬化させることが望ましい。The ultraviolet curing paint applied to the outer surface of the steel pipe can be cured, for example, by irradiating it with ultraviolet light from an ultraviolet irradiation rung. On the other hand, it is desirable that the ultraviolet curing paint applied to the outer surface of the steel pipe be uniformly cured.
しかしながら、従来、適切な紫外線照射が行なえる硬化
方法（−装置）が提案されておらず、そのため、鋼管外
面に塗布した紫外線硬化塗料を均一硬化させることは困
難であった。However, no curing method (-device) that can perform appropriate ultraviolet irradiation has been proposed so far, and therefore it has been difficult to uniformly cure the ultraviolet curing paint applied to the outer surface of the steel pipe.
そこでこの発明は、以上のような問題を解消すべくなさ
れたもので、
外面に紫外線硬化塗料を塗布した鋼管を移動させ、前記
鋼管の外側に配置した紫外線照射ランプによって、前記
鋼管の外面に塗布した紫外線硬化塗料表面に紫外線を照
射し、かくして前記鋼管の外面に塗布した紫外線硬化塗
料を硬化させる方法において、
前記紫外線照射ランプは、前記鋼管の管周にそって等間
隔で配置され、隣接した前記紫外線照射ランプ同志の各
々の照射面を互いに重複させて前記鋼管の外面に塗布し
た紫外線硬化塗料表面に均一照度分布光を照射すること
に特徴を有する。Therefore, this invention was made to solve the above-mentioned problems, and involves moving a steel pipe coated with an ultraviolet curing paint on its outer surface, and applying the coating to the outer surface of the steel pipe using an ultraviolet irradiation lamp placed outside the steel pipe. In the method of curing the UV-curable paint applied to the outer surface of the steel pipe by irradiating the surface of the UV-curable paint with ultraviolet rays, the UV-irradiation lamps are arranged at equal intervals along the circumference of the steel pipe, and The method is characterized in that the irradiation surfaces of the ultraviolet irradiation lamps are overlapped with each other to irradiate the surface of the ultraviolet curing paint applied to the outer surface of the steel pipe with uniform illuminance distribution light.
以下この発明を実施例により図面を参照しながら説明す
る。The present invention will be explained below by way of examples with reference to the drawings.
第１図はこの発明の方法を実施するための硬化装置の一
態様を示す概略縦断正面図、第２図は同概略縦断側面図
である。図において、１は図示しない適宜移動手段によ
って矢印Ａ方向に水平移動する鋼管であり、鋼管１の外
面には、図示しない紫外線硬化塗料の塗布装置によって
紫外線硬化塗料が塗布されている。２は中空円筒状の密
閉構造を持つ、水平に置かれたハウジングであり、ハウ
ソング２の軸方向の両端部中央には、鋼管１を通過させ
るための開口２ａが形成されている。鋼管１は、一方の
開口２ａ内からハウジング２内に至り、ついで他方の開
口２ａ内からハウジング２外に出る。FIG. 1 is a schematic longitudinal sectional front view showing one embodiment of a curing apparatus for carrying out the method of the present invention, and FIG. 2 is a schematic longitudinal sectional side view of the same. In the figure, reference numeral 1 denotes a steel pipe that is moved horizontally in the direction of arrow A by an appropriate moving means (not shown), and the outer surface of the steel pipe 1 is coated with an ultraviolet curable paint by an ultraviolet curable paint coating device (not shown). Reference numeral 2 denotes a horizontally placed housing having a hollow cylindrical sealed structure, and an opening 2a through which the steel pipe 1 passes is formed at the center of both ends of the housing song 2 in the axial direction. The steel pipe 1 enters the housing 2 through one opening 2a, and then exits the housing 2 through the other opening 2a.
ハウジング２内において、鋼管１の外側に位置するよう
に、紫外線を発生する、複数本（６本）のランプ３が、
鋼管１と軸方向を合致させ、且つその管周にそって等間
隔で水平に配置されている。Inside the housing 2, a plurality of (six) lamps 3 that generate ultraviolet rays are located outside the steel pipe 1.
They are aligned in the axial direction with the steel pipe 1 and are horizontally arranged at equal intervals along the circumference of the pipe.
各う／プ３は、反射板４ａを有する保持具４に保持され
ており、保持具４は、図示しない支持手段によってハウ
ジング２に支持されている。なお、反射板４ａは、ラン
プ３と同心上になるように円弧状にわん凸形成されてい
る。隣接したランプ３同志は、鋼管１の外面に塗布した
紫外線硬化塗料表面において、各々のランプ３からの紫
外線の照射面が互いに重複して管全周にわたって均一照
度分布が得られるように配置されている。即ち、隣接し
たランプ３同志は、例えば鋼管１の管中心角で４５°以
下になるような間隔で配置されている。Each pipe 3 is held by a holder 4 having a reflecting plate 4a, and the holder 4 is supported by the housing 2 by support means (not shown). Note that the reflector plate 4a is formed into an arcuate convex shape so as to be concentric with the lamp 3. Adjacent lamps 3 are arranged so that the surfaces irradiated with ultraviolet rays from each lamp 3 overlap with each other on the surface of the ultraviolet curing paint applied to the outer surface of the steel pipe 1, so that a uniform illuminance distribution is obtained over the entire circumference of the pipe. There is. That is, adjacent lamps 3 are arranged at intervals such that, for example, the center angle of the steel pipe 1 is 45° or less.
４５°を越えると、ランプ３同志が離れすぎてしまい、
鋼管１の外面に塗布した紫外線硬化塗料表面において均
一照射面が得られない。鋼管外面に塗布した紫外線硬化
塗料表面における、各ランプからの紫外線照射による照
度分布の一例を第３図に示す。If it exceeds 45 degrees, the lamp 3 comrades will be too far apart,
A uniform irradiation surface cannot be obtained on the surface of the ultraviolet curing paint applied to the outer surface of the steel pipe 1. FIG. 3 shows an example of the illuminance distribution due to the ultraviolet rays irradiated from each lamp on the surface of the ultraviolet curing paint applied to the outer surface of the steel pipe.
図中、縦軸が照度、横軸が各ランプの位置（管中心角で
示す）を示し、実線が各ランプ毎の照度分布、点線が管
周方向にそった総合的な照度分布を示しており、管周方
向にそって均一照度分布が得られていることが明らかで
ある。なお、鋼管１の外面と、ラング３との間の距離は
、離れすぎると照射効率が悪くなるし、近づきすぎると
、両者が機械的接触のおそれがあり、且つ均一照度分布
を得ることが困難になる（例えば、この距離は、４０〜
１５０ ａｍが望ましい）。鋼管外面とランプとの間の
距離の違いによる、鋼管外面上の照度分布例を第４図（
イ）に示す。図中、縦軸が照度、横軸が鋼管外面の管周
方向位置を示し、Ｈは、第４図←）に示すように、鋼管
１の外面とランプ３との間の距離を示す。In the figure, the vertical axis shows the illuminance, the horizontal axis shows the position of each lamp (indicated by the tube center angle), the solid line shows the illuminance distribution for each lamp, and the dotted line shows the overall illuminance distribution along the tube circumferential direction. It is clear that a uniform illuminance distribution is obtained along the tube circumferential direction. Note that if the distance between the outer surface of the steel pipe 1 and the rung 3 is too far, the irradiation efficiency will deteriorate, and if the distance is too close, there is a risk of mechanical contact between the two, and it will be difficult to obtain a uniform illuminance distribution. (For example, this distance is 40~
(preferably 150 am). Figure 4 shows an example of the illuminance distribution on the outer surface of the steel pipe due to the difference in the distance between the outer surface of the steel pipe and the lamp.
Shown in b). In the figure, the vertical axis indicates the illuminance, the horizontal axis indicates the circumferential position of the outer surface of the steel pipe, and H indicates the distance between the outer surface of the steel pipe 1 and the lamp 3, as shown in FIG.
第１図に示すように、ハウジング２の上端２箇所には、
ランプ３および保持具４を冷却するための冷却ガスの供
給用ダクト５および排出用ダクト６が、それぞれハウジ
ング２内と連通ずるように取付けられている。従って、
冷却ガスは供給用ダクト５からハウジング２内に入り、
そして排出用ダクト６からハウジング２外に至り、その
結果、ランプ３および保持具４は、冷却ガスによって冷
却される。As shown in FIG. 1, there are two locations at the upper end of the housing 2.
A supply duct 5 and a discharge duct 6 of cooling gas for cooling the lamp 3 and the holder 4 are installed so as to communicate with the inside of the housing 2, respectively. Therefore,
Cooling gas enters the housing 2 from the supply duct 5,
The discharge duct 6 leads to the outside of the housing 2, and as a result, the lamp 3 and the holder 4 are cooled by the cooling gas.
以上のような構成によって、鋼管１の外面に塗布された
紫外線硬化塗料は、鋼管１がハウジング２内を通過する
際に、ランプ３によって均一に紫外線が照射されて均一
に硬化する。With the above configuration, the ultraviolet curing paint applied to the outer surface of the steel pipe 1 is uniformly irradiated with ultraviolet light by the lamp 3 when the steel pipe 1 passes through the housing 2, and is uniformly cured.
ついで実施例について説明する。Next, examples will be explained.
外径２９８．４−のサイズの鋼管外面に、アクリル系紫
外線硬化塗料（粘度：５０’Ｑで１００ ｃ、ｐ）を、
１０〜２０μ厚になるように塗布し、ついでこの鋼管を
ｉｍ／ｓｅｅの速度で移動させてハウジング内を通過さ
せた。ハウジング内においては、有効長５０儒、８０〜
１６０ Ｗ／ｃｍの紫外線照射ランゾを、１６本管周に
そって等間隔で（従って管中心角は２２，５°）、且つ
鋼管表面との距離が１００簡になるように配置してあっ
た。その結果、鋼管外面に塗布した塗料表面において管
周にそってほぼ均一に、３００ ｍＷ／ｃｒｌｌの照度
が得られ、鋼管外面に塗布したアクリル系紫外線硬化塗
料をタック無し、鉛筆硬度Ｈ以上に均一硬化させること
ができた。Apply acrylic ultraviolet curing paint (viscosity: 100 c, p at 50'Q) to the outer surface of a steel pipe with an outer diameter of 298.4-.
The coating was applied to a thickness of 10 to 20 μm, and then the steel tube was moved at a speed of im/see to pass through the housing. Inside the housing, the effective length is 50 mm, 80 ~
160 W/cm ultraviolet irradiation lamps were placed at equal intervals along the circumference of the 16 main pipes (therefore, the center angle of the pipe was 22.5°), and at a distance of 100 cm from the steel pipe surface. . As a result, an illuminance of 300 mW/crll was obtained almost uniformly along the pipe circumference on the surface of the paint applied to the outer surface of the steel pipe, and the acrylic UV curing paint applied to the outer surface of the steel pipe was coated uniformly without tack and with a pencil hardness of H or higher. I was able to harden it.
以上説明したように、この発明においては、鋼管外面に
塗布した紫外線硬化塗料を均一硬化させることができる
。As explained above, in the present invention, the ultraviolet curing paint applied to the outer surface of the steel pipe can be uniformly cured.
第１図はこの発明の方法を実施するための硬化装置の一
態様を示す概略縦断足面図、第２図は同概略縦断側面図
、第３図および第４図（イ）は照度分布の一例を示す図
、第４図（ロ）はランプおよび保持具の断面を示す図で
ある。
１・・・鋼管、２・・・ハウジング、２ａ・・・開口、
３・・・ランプ、４・・・保持具、４ａ・・・反射板、
５・・・供給用ダクト、６・・・排出用ダクト。
出願人 日本鋼管株式会社
代理人 堤 敬太部（他１名）
帛１図
９１４図（イ） 例）４図（
。）手続補正書（自発）
昭和５７年１ 月１１日
特許庁長官 島 １）春 樹 殿
１ 事件の表示
特願昭５６− １８６８５５ 号
２、発明の名称
鋼管外面に塗布した紫外線硬化塗料の硬化方法３ 補正
をする者
事件との関係 特許出願人
住所 東京都千代田区丸の内−丁目１番２号氏叡名称）
（４１２）日本鋼管株式会社代表者 金 尾 實
４、代理人
住所 東京都港区虎ノ門−丁目２番加号 第１９森（
水田）ビル３階〒夏ｏｓｍ（０３）５０４−３８５８−
９自 発
６、補正の対象
（１）明細書、第１、発明の名称の項の記載を次に示す
通シに訂正する。
（２）明細書、第１頁、特許請求の範囲の項の記載を次
に示す通りに訂正する。
１外面に紫外線硬化塗料を塗布した管棒状体を移動させ
、前記管棒状体の外側に配置した紫外線照射ランプによ
って、前記管棒状体の外面に塗布した紫外線硬化塗料表
面に紫外線を照射し、かくして前記管棒状体の外面に塗
布した紫外線硬化塗料を硬化させる方法において、
前記紫外線照射ランプは、前記管棒状体の周回りにそっ
て等間隔で配置され、隣接した前記紫外線照射ランプ同
志の各々の照射光を互いに重複させて前記管棒状体の外
面に塗布した紫外線硬化塗料表面に均一照度分布光を照
射することを特徴とする管棒状体外面に塗布した紫外線
硬化塗料の硬化方法。」
（３） 明細書、第２頁、発明の詳細な説明の項、第
２行、および第６行、
「鋼管」とあるを、
「鋼管、棒鋼等の管棒状体」と訂正する。
（４）明細書、発明の詳細な説明の項、第２頁第８行、
同頁第１０行、同頁第１５行、同頁最下行、第３頁第１
行、同頁第２行、同頁第３行、同頁第６行、同頁第９行
および′第７頁第９〜１０行、
「鋼管」とあるを、
「管棒状体」と訂正する。
（５） 明細書、第３、発明の詳細な説明の項、第６
行、
「管周」とあるを、
「周回り」と訂正する。
以上Fig. 1 is a schematic longitudinal sectional view showing one aspect of the curing device for carrying out the method of the present invention, Fig. 2 is a schematic longitudinal sectional side view of the same, and Figs. A diagram showing an example, FIG. 4(b) is a diagram showing a cross section of the lamp and the holder. 1... Steel pipe, 2... Housing, 2a... Opening,
3...Lamp, 4...Holder, 4a...Reflector,
5... Supply duct, 6... Discharge duct. Applicant Nippon Kokan Co., Ltd. Agent Keitabe Tsutsumi (1 other person) Figure 1 Figure 914 (A) Example) Figure 4 (
. ) Procedural amendment (voluntary) January 11, 1980 Commissioner of the Japan Patent Office Shima 1) Tono Haruki 1 Indication of the case Patent Application No. 186855 1982 Title of the invention Method for curing ultraviolet curing paint applied to the outer surface of steel pipes 3 Relationship with the case of the person making the amendment Patent applicant address: 1-2 Marunouchi-chome, Chiyoda-ku, Tokyo (Name: Mr. Eiji)
(412) Nippon Kokan Co., Ltd. Representative: Minoru Kaneo 4, Agent address: 19th Mori, Toranomon-chome-2, Minato-ku, Tokyo
Mizuta) Building 3rd Floor Summer Osm (03) 504-3858-
9 Voluntary 6. Subject of amendment (1) The statement in the description, No. 1, title of the invention is corrected to the following notice. (2) The statement in the claims section on page 1 of the specification is corrected as shown below. 1. A tube rod-like body coated with an ultraviolet curing paint on its outer surface is moved, and an ultraviolet ray irradiation lamp placed on the outside of the tube rod-like body irradiates ultraviolet rays onto the surface of the ultraviolet curing paint coated on the outer surface of the tube rod-like body. In the method of curing an ultraviolet curing paint applied to the outer surface of the tube-rod-shaped body, the ultraviolet irradiation lamps are arranged at equal intervals along the circumference of the tube-rod-shaped body, and each of the adjacent ultraviolet irradiation lamps is A method for curing an ultraviolet curable paint applied to the outer surface of a tube rod-like body, comprising irradiating the surface of the ultraviolet curable paint applied to the outer surface of the tube rod-like body with uniform illuminance distribution light, with the irradiation light mutually overlapping. (3) In the description, page 2, detailed description of the invention, lines 2 and 6, the phrase ``steel pipe'' is corrected to ``tubular rod-shaped bodies such as steel pipes and steel bars.'' (4) Specification, detailed description of the invention, page 2, line 8,
Line 10 of the same page, line 15 of the same page, bottom line of the same page, line 1 of page 3
line, line 2 of the same page, line 3 of the same page, line 6 of the same page, line 9 of the same page, and lines 9-10 of page 7, "steel pipe" was corrected to "tube rod-shaped body" do. (5) Specification, Section 3, Detailed Description of the Invention, Section 6
In line 1, correct the phrase ``circumference'' to ``circumference.''that's all
Claims (1)
鋼管の外側に配置した紫外線照射う／グによって、前記
鋼管の外面に塗布した紫外線硬化塗料表面に紫外線を照
射し、かくして前記鋼管の外面に塗布した紫外線硬化塗
料を硬化させる方法において、 前記紫外線照射ラングは、前記鋼管の管周にそって等間
隔で配置され、隣接した前記紫外線照射ラング同志の各
々の照射光を互いに重複させて前記鋼管の外面に塗布し
た紫外線硬化塗料表面に均一照度分布光を照射すること
を特徴とする鋼管外面に塗布した紫外線硬化塗料の硬化
方法。[Scope of Claims] Moving a steel pipe coated with an ultraviolet curable paint on the outer surface, and irradiating the surface of the ultraviolet curable paint coated on the outer surface of the steel pipe with ultraviolet rays using an ultraviolet ray irradiation gun disposed outside the steel pipe, Thus, in the method for curing the ultraviolet curing paint applied to the outer surface of the steel pipe, the ultraviolet irradiation rungs are arranged at equal intervals along the circumference of the steel pipe, and the ultraviolet irradiation rungs are arranged at equal intervals along the circumference of the steel pipe, and the irradiation light of each of the adjacent ultraviolet irradiation rungs is emitted. A method for curing an ultraviolet curable paint applied to the outer surface of a steel pipe, comprising irradiating the surface of the ultraviolet curable paint applied to the outer surface of the steel pipe with uniform illuminance distribution light in an overlapping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18685581A JPS5889971A (en) | 1981-11-24 | 1981-11-24 | Curing method for ultraviolet-ray curing paint applied to external surface of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18685581A JPS5889971A (en) | 1981-11-24 | 1981-11-24 | Curing method for ultraviolet-ray curing paint applied to external surface of steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5889971A true JPS5889971A (en) | 1983-05-28 |
| JPH0211313B2 JPH0211313B2 (en) | 1990-03-13 |
Family
ID=16195826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18685581A Granted JPS5889971A (en) | 1981-11-24 | 1981-11-24 | Curing method for ultraviolet-ray curing paint applied to external surface of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5889971A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4994757A (en) * | 1972-11-30 | 1974-09-09 | ||
| JPS558229A (en) * | 1978-06-29 | 1980-01-21 | Sumitomo Electric Industries | Method of connecting cv cable |
-
1981
- 1981-11-24 JP JP18685581A patent/JPS5889971A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4994757A (en) * | 1972-11-30 | 1974-09-09 | ||
| JPS558229A (en) * | 1978-06-29 | 1980-01-21 | Sumitomo Electric Industries | Method of connecting cv cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0211313B2 (en) | 1990-03-13 |
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