JPH01235757A - Unbonded pc steel material and its manufacture - Google Patents

Unbonded pc steel material and its manufacture

Info

Publication number
JPH01235757A
JPH01235757A JP6389988A JP6389988A JPH01235757A JP H01235757 A JPH01235757 A JP H01235757A JP 6389988 A JP6389988 A JP 6389988A JP 6389988 A JP6389988 A JP 6389988A JP H01235757 A JPH01235757 A JP H01235757A
Authority
JP
Japan
Prior art keywords
steel material
film
unbonded
semi
liquid
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
Application number
JP6389988A
Other languages
Japanese (ja)
Inventor
Shinji Takenoshita
伸治 竹之下
Kojiro Shirabe
公二郎 調
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP6389988A priority Critical patent/JPH01235757A/en
Publication of JPH01235757A publication Critical patent/JPH01235757A/en
Pending legal-status Critical Current

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Landscapes

  • Reinforcement Elements For Buildings (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

PURPOSE:To reduce the cost of unbonded PC steel materials as well as raise the unbond characteristics by a method in which a liquid or semi-hardened film and a hardened film for holding the liquid or semi-hardened film are formed on the surface of a PC steel part by using an ultraviolet rays-hardening resin. CONSTITUTION:An ultraviolet rays hardening type resin is applied on the surface of a PC steel part 2, and the part 2 is passed through a ultraviolet rays irradiator, where the amount of ultraviolet rays to irradiate is controlled to form a liquid or semi-hardened film 10 and a tubular hardened film 9 to hold the film 10 are formed on the surface of the part 2. The PC steel part 2 having excellent unbond characteristics can thus be obtained.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明はアンボンドPC鋼材及びその製造方法に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an unbonded PC steel material and a method for manufacturing the same.

[従来技術と問題点] 従来、アンボンドPC鋼材、例えばアンボンドPC鋼線
、PCストランド、PC鋼棒の製造方法として次のよう
な方法が用いられている。
[Prior Art and Problems] Conventionally, the following methods have been used to manufacture unbonded PC steel materials, such as unbonded PC steel wires, PC strands, and PC steel bars.

(1)PC鋼材の表面にグリス等の減磨材を塗布した上
に、押し出し機によりビニール等の被照を行う方法。
(1) A method in which an abrasion-reducing material such as grease is applied to the surface of a PC steel material, and then a material such as vinyl is applied using an extruder.

(2)PC鋼材の表面に、粉体塗装法等により摩擦係数
の小さい固化膜を形成させる方法。上記(1)の方法は
グリス等の被膜の上にビニール等被暎を押し出し機によ
って形成するので、設備コストが高い、グリス等を使用
するため、工場環境が悪化する、グリス、ビニール樹脂
等の原材料のコスト高等の問題がある。
(2) A method of forming a solidified film with a small coefficient of friction on the surface of a PC steel material using a powder coating method or the like. Method (1) above uses an extruder to form a coat of vinyl or other material on a coating of grease, etc., so the equipment cost is high.Since it uses grease, etc., the factory environment deteriorates. There is a problem of high raw material costs.

又、(2)の粉体塗装法による場合は、細径、長尺物に
おいて、アンボンド特性が劣る難点があり、製造コスト
においても大幅に増加する問題があった。
Furthermore, when using the powder coating method (2), there is a problem in that the unbonding properties are poor in small diameter and long objects, and there is also a problem in that the manufacturing cost increases significantly.

[発明の構成コ 本発明は、前記(+)の方法によって製造されたアンボ
ンドPC鋼材に似た構成を有するアンボンドPC鋼材を
紫外線硬化型樹脂をPC鋼材の表面に連続的に塗布し、
続いて照射する紫外線の厨7Lt借を制御することによ
って、表面より硬化して形成された樹脂硬化膜とPC鋼
材との間に液状又は半硬状の膜を残すようにして形成し
たアンボンドPC鋼材及びその製造方法にある。
[Structure of the Invention] The present invention provides an unbonded PC steel material having a structure similar to the unbonded PC steel material manufactured by the method (+) above, by continuously applying an ultraviolet curable resin to the surface of the PC steel material,
Unbonded PC steel material is formed by controlling the amount of ultraviolet rays that are subsequently irradiated to leave a liquid or semi-hard film between the resin cured film that is hardened from the surface and the PC steel material. and its manufacturing method.

以下、第1図に概略的に示す製造ラインにより、本発明
の製造方法を説明する。
The manufacturing method of the present invention will be explained below using the manufacturing line schematically shown in FIG.

図において、■はPC鋼材のペイオフ装置で、2はペイ
オフ装置1より繰り出されたPC鋼材を示し、3は紫外
線硬化型樹脂の塗布装置、4は樹脂膜厚み調整ダイス、
5,5′は紫外線照射装置、6はティクアップ装置であ
る。
In the figure, ■ is a payoff device for PC steel materials, 2 is a PC steel material paid out from the payoff device 1, 3 is an ultraviolet curable resin coating device, 4 is a resin film thickness adjustment die,
5 and 5' are ultraviolet irradiation devices, and 6 is a pickup device.

繰り出されたPC鋼材2は、紫外線硬化型樹脂の塗布装
置3で樹脂液の塗布を受ける。なお7は樹脂液タンク、
Pは樹脂液供給用のポンプである。
The unwound PC steel material 2 is coated with a resin liquid by an ultraviolet curable resin coating device 3. In addition, 7 is a resin liquid tank,
P is a pump for supplying resin liquid.

紫外線硬化型樹脂液の塗布を施されたPC鋼材2は、垂
直方向で樹脂膜厚み調整ダイス4により樹脂液の厚み調
整が行われ、第1の紫外線照射装置5にて紫外線照射を
受け、ガイドローラー8によって反転して下降し、水平
方向に走行して第2の紫外線照射装置5′に入り、ここ
で紫外線照射を受け、ティクアップ装置6で巻き取られ
る。
The PC steel material 2 coated with an ultraviolet curable resin liquid is vertically adjusted in thickness by a resin film thickness adjustment die 4, and then irradiated with ultraviolet light by a first ultraviolet irradiation device 5, and then guided. It is reversed and lowered by the rollers 8, runs horizontally, enters the second ultraviolet irradiation device 5', receives ultraviolet irradiation there, and is wound up by the tick-up device 6.

なお、PC鋼材2の垂直方向走行位置に第1の紫外線照
射装置5が設置されているが、塗布された紫外線硬化型
樹脂の表面を早急硬化するためで、ガイドローラー8に
かかる前であるので、塗布された紫外線硬化型樹脂の塗
布むらを生じることなく、ローラー8を通過し、この第
1の紫外線照射装置5と第2の紫外線照射装置5′にお
ける紫外線照射量を合算して、硬化制御が行われる。
Note that the first ultraviolet irradiation device 5 is installed at the position where the prestressing steel material 2 runs in the vertical direction, but this is to quickly cure the surface of the applied ultraviolet curable resin before it is applied to the guide roller 8. The applied ultraviolet curable resin passes through the roller 8 without uneven coating, and the amount of ultraviolet irradiation in the first ultraviolet irradiation device 5 and the second ultraviolet irradiation device 5' is added together to control curing. will be held.

なお、紫外線硬化型樹脂は一定強度以上の紫外線が照射
された場合のみ硬化し、自然界に存在する程度の紫外線
では長期間硬化しない。
Note that ultraviolet curable resins cure only when irradiated with ultraviolet rays of a certain intensity or higher, and do not cure for a long period of time with ultraviolet rays of the level that exists in nature.

p C# taの場合、上記のようなラインは不適で、
水平ライン上で上記工程を進行させる。
p In the case of C# ta, lines like the above are inappropriate,
The above steps are carried out on a horizontal line.

第3図は、本発明の方法によって製造されたアンボンド
PC鋼材の一例を断面図で示す。図示のようにPC鋼材
2の最外層に、紫外線照射型樹脂の硬化によるチューブ
状の硬化膜9があり、この硬化膜9とPC鋼材2の間に
液状又は半硬状膜I0ができ、この膜10は前記硬化膜
9で保持される。
FIG. 3 shows, in cross-section, an example of an unbonded PC steel material manufactured by the method of the present invention. As shown in the figure, on the outermost layer of the PC steel material 2, there is a tube-shaped cured film 9 formed by curing of an ultraviolet ray irradiation type resin, and a liquid or semi-hard film I0 is formed between this cured film 9 and the PC steel material 2. The film 10 is held by the cured film 9.

第2図は照射時間(秒)と紫外線硬化膜厚(m−)の関
係の一例をグラフで示す。図で厚み1■1の紫外線硬化
型樹脂に、紫外線照射を10秒間施すと硬化膜圧は0.
75umとなり、0.25tmは半硬化、未硬化のまま
残存することを示している。なお、紫外線硬化型樹脂の
硬化は表面より内部に進行する。
FIG. 2 is a graph showing an example of the relationship between irradiation time (seconds) and ultraviolet cured film thickness (m-). In the figure, when UV curable resin with a thickness of 1×1 is exposed to UV rays for 10 seconds, the cured film thickness is 0.
75 um, and 0.25 tm indicates that it remains semi-cured or uncured. Note that the curing of the ultraviolet curable resin progresses from the surface to the inside.

一般に硬化膜ノ1と半硬状膜厚は紫外線照射量(紫外線
強度、時間)や樹脂液に各種顔料を添加することによっ
て制御することができる。
Generally, the thickness of the cured film and the semi-hard film can be controlled by adjusting the amount of ultraviolet irradiation (ultraviolet intensity, time) and adding various pigments to the resin liquid.

[発明の効L] 本発明によって、摩擦係数の小さい液状又は半硬状の膜
とこれを保持するチューブ状の硬化膜を有する構造のア
ンボンド特性の優れたPC鋼材が得られ、その製造は、
PC鋼材を、紫外線硬化型樹脂の塗布装置と紫外線照射
装置より構成される簡単、且つ安価の製造ライYで連続
的に製造でき、大幅なコスト低減を実現することができ
る。
[Effects of the Invention L] The present invention provides a PC steel material with excellent unbonding properties that has a structure including a liquid or semi-hard film with a small coefficient of friction and a tubular hardened film that holds the film, and its production is as follows:
PC steel materials can be continuously manufactured using a simple and inexpensive manufacturing line Y consisting of an ultraviolet curable resin coating device and an ultraviolet irradiation device, and a significant cost reduction can be achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明を実施する製造ラインを概略的に示す。 第2図は、紫外線照射時間と紫外線硬化型樹脂の硬化関
係を示す妻襦喰涜塘#≠特性グラフである。 第3図は、本発明により製造されたアンボンドPC鋼材
の一例を示す。 1・・・ペイオフ装置、2・・・PC鋼材、3・・・紫
外線硬化型樹脂の塗布装置、4・・・樹脂厚み調整ダイ
ス、5.5°・・・紫外線照射装置、6・・・ティクア
ップ装置、7・・・樹脂液タンク、8・・・ガイドロー
ラー、9・・・硬化膜、10・・・液状、又は半硬化膜
FIG. 1 schematically shows a production line implementing the invention. FIG. 2 is a characteristic graph showing the relationship between ultraviolet irradiation time and curing of ultraviolet curable resin. FIG. 3 shows an example of an unbonded PC steel material manufactured according to the present invention. DESCRIPTION OF SYMBOLS 1...Payoff device, 2...PC steel material, 3...UV curable resin coating device, 4...Resin thickness adjustment die, 5.5°...UV irradiation device, 6... Tick-up device, 7... Resin liquid tank, 8... Guide roller, 9... Cured film, 10... Liquid or semi-cured film.

Claims (2)

【特許請求の範囲】[Claims] (1)PC鋼材の表面に液状又は半硬状膜と該膜を保持
する硬化膜を紫外線硬化型樹脂にて形成したことを特徴
とするPCアンボンド鋼材。
(1) A PC unbonded steel material, characterized in that a liquid or semi-hard film and a cured film for holding the film are formed on the surface of the PC steel material using an ultraviolet curable resin.
(2)紫外線硬化型樹脂を使用してPC鋼材の表面に塗
布し、紫外線照射装置を通し、紫外線照射量を制御して
前記PC鋼材の表面に液状、又は半硬化膜と該膜を保持
するチューブ状の硬化膜を形成することを特徴とするア
ンボンドPC鋼材の製造方法。
(2) Apply an ultraviolet curable resin to the surface of the PC steel material, pass it through an ultraviolet irradiation device, and control the amount of ultraviolet irradiation to maintain a liquid or semi-cured film on the surface of the PC steel material. A method for producing an unbonded PC steel material, which comprises forming a tube-shaped hardened film.
JP6389988A 1988-03-16 1988-03-16 Unbonded pc steel material and its manufacture Pending JPH01235757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6389988A JPH01235757A (en) 1988-03-16 1988-03-16 Unbonded pc steel material and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6389988A JPH01235757A (en) 1988-03-16 1988-03-16 Unbonded pc steel material and its manufacture

Publications (1)

Publication Number Publication Date
JPH01235757A true JPH01235757A (en) 1989-09-20

Family

ID=13242616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6389988A Pending JPH01235757A (en) 1988-03-16 1988-03-16 Unbonded pc steel material and its manufacture

Country Status (1)

Country Link
JP (1) JPH01235757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008012388A (en) * 2006-07-03 2008-01-24 Dainippon Printing Co Ltd Pattern forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008012388A (en) * 2006-07-03 2008-01-24 Dainippon Printing Co Ltd Pattern forming apparatus

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