JPS5815536A - Method for irradiating plastic tube with electron beam - Google Patents
Method for irradiating plastic tube with electron beamInfo
- Publication number
- JPS5815536A JPS5815536A JP11302781A JP11302781A JPS5815536A JP S5815536 A JPS5815536 A JP S5815536A JP 11302781 A JP11302781 A JP 11302781A JP 11302781 A JP11302781 A JP 11302781A JP S5815536 A JPS5815536 A JP S5815536A
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- belt
- tube
- tubes
- plastic tube
- 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
- 238000010894 electron beam technology Methods 0.000 title claims abstract description 22
- 239000004033 plastic Substances 0.000 title claims abstract description 8
- 229920003023 plastic Polymers 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 10
- 230000001678 irradiating effect Effects 0.000 title 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003063 flame retardant Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 15
- 238000007796 conventional method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
ＰＥ（ポリエチレン）チューブに架橋処理を施すための
電子線照射方法に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electron beam irradiation method for crosslinking a PE (polyethylene) tube.
ケーブル等の接続部等を被覆するＰＥ系チューブは、電
子線照射装置によって電子線な照射し、情Ｉ；
架橋することにより、耐熱性、物理的特性等が上向上す
ることから多用されている。PE-based tubes that cover the connections of cables, etc., are often used because they are cross-linked by being irradiated with electron beams using an electron beam irradiation device, which improves their heat resistance, physical properties, etc. .
」−記σノ方法を実施するためｊ【、水平方向に一対の
キャプスタンな対向配置し、このキャプスタン間にベル
トを十字掛けし、一方のキャプスタンを駆動することに
よりベルトを回動させ、とのベルト上に難燃性ＰＥチュ
ーブを載せ、ベルトの移動に伴ｌ「つて難燃性チューブ
を自転させ、十字掛けし１こベルトの直上に配置した電
子線照射装置から電子線を照射する方法が一般採用され
ている。In order to carry out the method described above, a pair of capstans are arranged horizontally facing each other, a belt is crossed between the capstans, and one of the capstans is driven to rotate the belt. A flame-retardant PE tube is placed on the belt, and as the belt moves, the flame-retardant tube is rotated and irradiated with an electron beam from an electron beam irradiation device placed directly above the belt. This method is generally adopted.
しかしながら、かかる装置を用いてポリエチレンに多一
量の姉燃剤を配合した難斃性ＰＥチューブに電子線照射
を施す場合、配合成分等の関係からチューブ表面の摩擦
係数が大きくなるために電子線の照射中π前記チューブ
がキャプスクン上で周方向に自転しｖｒ＜＜なり、電子
線の照射むらが生ずるという問題点があった。However, when applying electron beam irradiation to a non-resistance PE tube made of polyethylene mixed with a large amount of a flame retardant using such a device, the coefficient of friction on the tube surface becomes large due to the relationship between the ingredients and other factors. During irradiation, the tube rotates in the circumferential direction on the capsun, resulting in vr<<, resulting in uneven electron beam irradiation.
本発明は、上記の事情に基づきなされたもので離岸性Ｐ
Ｅチューブであっても、キャプスクン上で確実に周方向
に自転し、電子線の照射むらを除去した電子線照射方法
を提供することを目的と丁る。The present invention has been made based on the above circumstances, and the present invention has been made based on the above circumstances.
It is an object of the present invention to provide an electron beam irradiation method in which even an E tube can reliably rotate in the circumferential direction on a capsun and eliminate unevenness in electron beam irradiation.
以下に、本発明の一実施例を図面な参照して説明する。An embodiment of the present invention will be described below with reference to the drawings.
図面は、本発明方法を実施するための装置の概略構成を
示し、第１図は、その側面図、第２図はその平面図であ
る。The drawings show a schematic configuration of an apparatus for carrying out the method of the present invention, with FIG. 1 being a side view thereof and FIG. 2 being a plan view thereof.
同図において駆動側キャプスタン１及び従動側キャプス
タン２が、水平方向に一定の間隔を有して対向配置され
、これらキャプスタン１，２にはその軸方向に沿って波
形溝３が形成されている。In the figure, a driving side capstan 1 and a driven side capstan 2 are arranged facing each other with a fixed interval in the horizontal direction, and a wave-shaped groove 3 is formed in these capstans 1 and 2 along their axial direction. ing.
一対の前記キャプスタン１１２間πは、ベルト４が、軸
方向に連続して張架されている。The belt 4 is stretched continuously in the axial direction between the pair of capstans 112 π.
そこで、この張架されたベルト４上に被照射物すなわち
、′ＩＪＩ（燃性ＰＥチューブ５な載せる。Therefore, an object to be irradiated, that is, an IJI (flammable PE tube 5) is placed on the stretched belt 4.
前記ＰＥチューブ５内には、丸棒、パイプ等の剛性の高
い長尺物６を挿入する。A long object 6 with high rigidity, such as a round rod or a pipe, is inserted into the PE tube 5.
しかして、駆動側キャプスタン１を図示を略した駆動源
により、駆動すれば、ベルト４を介して従動側キャプス
タン２が駆動され、難燃性ＰＥチューブ５はベルト４の
移動に伴って周方向に自転するための外力が付与される
。When the drive side capstan 1 is driven by a drive source (not shown), the driven side capstan 2 is driven via the belt 4, and the flame-retardant PE tube 5 is moved around the circumference as the belt 4 moves. An external force is applied to rotate in the direction.
かかる構成において、ベルト４の面上ｆｆ設けた電子線
照射装＠７πより、難燃性ＰＥチューブ５に電子線８ｔ
ｆ照射すれば、前記Ｐ Ｅチューブ５は一定の速度で自
転する１こめに、電子線８がその表面ｆむらなく照射さ
れることとなる。In this configuration, an electron beam of 8t is applied to the flame-retardant PE tube 5 from an electron beam irradiation device @7π provided on the surface of the belt 4.
When irradiated with f, the electron beam 8 is evenly irradiated on the surface of the PE tube 5 every time it rotates at a constant speed.
上記の方法による照射効果を従来のものと比較してゲル
分率（鉤で示せば以下の通りである。The irradiation effect of the above method was compared with that of the conventional method and the gel fraction (represented by a hook is as follows).
￥なわち、剛性の高い長尺物を挿入しない従来方法ｆよ
る難燃性ＰＥチューブの場合のゲル分率が４０〜４５係
であるのに対し、本発明方法によ」１．ば４８〜５０係
に向上し、電子線の照射むらが改善されることが明らか
である。In other words, the gel fraction in the case of a flame-retardant PE tube made by the conventional method (f) in which no highly rigid long object is inserted is 40 to 45, whereas the gel fraction by the method of the present invention is 1. It is clear that the electron beam irradiation unevenness is improved by 48 to 50.
上記のようｆ本発明方法によれば、離燃性Ｐ Ｅチュー
ブ内に一定長の剛体（長尺物）を挿入することにより、
ベルト上での難燃性ＰＥチューブの自転を容易にし、従
って電子線の照射むらを生じさせず、耐熱性、物理的特
性等に優れた均一な架橋チューブを製造することができ
る。As described above, according to the method of the present invention, by inserting a rigid body (long object) of a certain length into the combustible PE tube,
The flame-retardant PE tube can be easily rotated on the belt, so that uneven electron beam irradiation is not caused, and a uniform crosslinked tube with excellent heat resistance, physical properties, etc. can be manufactured.
なお、本発明の実施例では、難燃性チューブについて説
明したが、これに限定されるものではなく、広くプラス
チックチューブに適用し得ることはいう壕でもない。Although the embodiments of the present invention have been described with reference to flame-retardant tubes, the present invention is not limited thereto and is not to say that it can be broadly applied to plastic tubes.
図面は、本発明を実施するための電子線照射装置の概略
構成な示し、第１図は、その側面図、第２図は、その平
面図である。
１・・・駆動側キャプスタン、２・・・従動側キャプス
タン、３・・・波形溝、４・・・ベルト、５・・・難燃
性ＰＥチューブ、６・・・長尺物、７・・・電子線照射
装置、８・・・電子線。
出願代理人 弁、理士 菊 池 五 部間 山田間借
第 １ 図
第２ 図The drawings schematically show the structure of an electron beam irradiation apparatus for carrying out the present invention, and FIG. 1 is a side view thereof, and FIG. 2 is a plan view thereof. DESCRIPTION OF SYMBOLS 1... Drive side capstan, 2... Driven side capstan, 3... Corrugated groove, 4... Belt, 5... Flame retardant PE tube, 6... Long object, 7 ...Electron beam irradiation device, 8...Electron beam. Application agent Ben, Physician Kikuchi Go Bema Yamada Rent No. 1 Figure 2
Claims (1)
プスタン間にベルトを十字掛けし、このベルト上に剛性
の高い長尺物を挿入したプラスチックチューブを載せ、
前記キャプスタンを駆動することにより、前記プラスチ
ックチューブを自転させ、ベルト直上に配置した電子線
照射装置により電子ｍ′＠５照射することを特徴とする
プラスチックチューブの電子線照射方法。A belt is placed crosswise between a pair of capstans that are placed opposite each other at a constant distance in the horizontal direction, and a plastic tube with a long rigid object inserted is placed on top of this belt.
A method of electron beam irradiation of a plastic tube, characterized in that the plastic tube is rotated by driving the capstan, and the plastic tube is irradiated with electrons m'@5 by an electron beam irradiation device placed directly above the belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11302781A JPS5815536A (en) | 1981-07-21 | 1981-07-21 | Method for irradiating plastic tube with electron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11302781A JPS5815536A (en) | 1981-07-21 | 1981-07-21 | Method for irradiating plastic tube with electron beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5815536A true JPS5815536A (en) | 1983-01-28 |
Family
ID=14601603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11302781A Pending JPS5815536A (en) | 1981-07-21 | 1981-07-21 | Method for irradiating plastic tube with electron beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815536A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088131A (en) * | 1983-09-12 | 1985-05-17 | ホリングスワ−ス・ゲ−・エム・ベ−・ハ− | Method and apparatus for treating edge of sawtooth wire |
| JPS62146281A (en) * | 1984-09-05 | 1987-06-30 | エクスツル−ドホ−ン コ−ポレ−シヨン | Method for chemical removal of burr using soluble mask |
-
1981
- 1981-07-21 JP JP11302781A patent/JPS5815536A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088131A (en) * | 1983-09-12 | 1985-05-17 | ホリングスワ−ス・ゲ−・エム・ベ−・ハ− | Method and apparatus for treating edge of sawtooth wire |
| JPS62146281A (en) * | 1984-09-05 | 1987-06-30 | エクスツル−ドホ−ン コ−ポレ−シヨン | Method for chemical removal of burr using soluble mask |
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