JPS59207505A - Method of producing optical unit of aluminum-optical fiber composite aerial ground wire - Google Patents
Method of producing optical unit of aluminum-optical fiber composite aerial ground wireInfo
- Publication number
- JPS59207505A JPS59207505A JP58082270A JP8227083A JPS59207505A JP S59207505 A JPS59207505 A JP S59207505A JP 58082270 A JP58082270 A JP 58082270A JP 8227083 A JP8227083 A JP 8227083A JP S59207505 A JPS59207505 A JP S59207505A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- optical fiber
- aluminum
- ground wire
- optical unit
- 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
- 238000000034 method Methods 0.000 title claims description 15
- 230000003287 optical effect Effects 0.000 title claims description 13
- 239000013307 optical fiber Substances 0.000 title claims description 10
- 239000002131 composite material Substances 0.000 title claims 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 description 22
- 239000000956 alloy Substances 0.000 description 22
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005482 strain hardening Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010953 base metal Substances 0.000 description 2
- 238000010622 cold drawing Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001295 No alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Non-Insulated Conductors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はＡ（−光フアイバー複合架空地線（以下０ＰＧ
Ｗと略記）の光ユニツト製造方法に関するもので、特に
八（の’７４ Ｍ率をあまり低下せしめることなく強度
を改善したものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to
This invention relates to a method for manufacturing an optical unit of 8 (abbreviated as "W"), and in particular improves the strength without significantly lowering the M ratio of 8 ('74).
０ＰＧＷ光ユニツトはアルミ管内に光ファイバー（以下
ＯＰと略記）を内蔵ぜしめたもので、架空送電線上に架
設し、ＯＰにより通信を行ない、アルミ管その他により
落雷による被害を防止するものである。従って○ＰＧＷ
光ユニットのアルミ管には良好な導電率と硬Ａ℃以上の
強度が要求されており、従来はアルミ管に電気用Ａｆ
（ＥＣＡ（）を用い、次のようにしてＯＰ Ｇ Ｗ光ユ
ニットを製造している。The 0PGW optical unit has an optical fiber (hereinafter abbreviated as OP) built into an aluminum tube, is installed on an overhead power transmission line, communicates via OP, and uses the aluminum tube and other equipment to prevent damage from lightning strikes. Therefore ○PGW
Aluminum tubes for optical units are required to have good electrical conductivity and a strength higher than hard A℃.
(The OP GW optical unit is manufactured using ECA () in the following manner.
（１）引抜加工等により形成したアルミ管内にＯＰを挿
入する方法。(1) A method of inserting the OP into an aluminum tube formed by drawing or the like.
（２）ＯＰにアルミ条を被せながら丸めで管状に溶接す
ることにより、管内にＯＰを内蔵せしめ、読管に冷間で
圧延又は引抜加工を加える方法。(2) A method in which the OP is built into the tube by welding it into a rolled tube while covering the OP with an aluminum strip, and then cold rolling or drawing is performed on the reading tube.
〈３）押出機によりアルミをＯＰ周囲に管状に押出して
管内にＯＰを内蔵せしめ、読管に冷間で圧延又は引抜加
工を加える方法。(3) A method in which aluminum is extruded into a tube around the OP using an extruder, the OP is built into the tube, and the tube is cold rolled or drawn.
しかしながらく１）の方法では長尺室内にＯＰを挿入す
ることが極めて困難であり、さらに一般に行なわれる押
出−引抜によるアルミ管の製造方式では長さに限りがあ
り、（２）の方法では溶接熱により管の強度が著しく低
下し、これに強加工を加えても加工熱による回復によっ
て十分な強度が得られず、（３）の方法では押出時の加
熱、発熱により管が軟化し、これに強加工を加えても（
２〉と同様にして十分な強度が得られなかった。However, with method 1), it is extremely difficult to insert the OP into a long chamber, and with the commonly used extrusion-drawing method for manufacturing aluminum pipes, the length is limited, and with method (2), welding The strength of the tube decreases significantly due to heat, and even if strong processing is applied, sufficient strength cannot be obtained due to recovery from processing heat.In method (3), the tube becomes soft due to heating and heat generation during extrusion, and this Even if strong processing is applied to (
Similar to 2>, sufficient strength could not be obtained.
本発明はこれに鑑み種々検討の結果、Ａ、１２管の導電
率をあまり低下せしめることなく、十分な強度を付与す
ることができる０ＰＧＷの光ユニット製造方法を開発し
たもので、Ｚ ｒ Ｏ，０２〜０．０５ｗｔ％（以下ｗ
ｔ％を単に％とＦ＠記）、残部電気用Ａ（からなるアル
ミニウム合金管内にＯＰを内蔵せしめた後、読管に冷間
で３０％以上の減面加工を加えることを特徴とするもの
である。In view of this, as a result of various studies, the present invention has developed a method for manufacturing a 0PGW optical unit that can provide sufficient strength without significantly reducing the conductivity of the A, 12 tube. 02-0.05wt% (hereinafter w
After embedding the OP in an aluminum alloy tube consisting of t% (simply % and F@) and the balance A (for electrical use), the tube is cold processed to reduce its area by 30% or more. It is.
即ち本発明は電気用／ｌ地金にＺ「を０．０２〜０．０
５％添加したアルミニウム合金管内にＯＰを内蔵せしめ
、しかる後読管を冷間で減面率３０％以−トの圧延又は
引抜加工を加えるものである。アルミニウム合金管内に
ＯＰを内蔵するには、アルミニウム合金条を用い、これ
をＯＰに被せながら丸めて管状に溶接するか又はアルミ
ニウム合金ヒレツ１へをコンフォーム押出機等によりＯ
Ｐの周囲に管状に押出せばよい。That is, in the present invention, Z' is set to 0.02 to 0.0 in electrical/l ingot.
The OP is built into an aluminum alloy tube containing 5% additive, and the post-reading tube is subjected to cold rolling or drawing with an area reduction of 30% or more. To incorporate the OP into the aluminum alloy tube, use an aluminum alloy strip and roll it over the OP and weld it into a tubular shape, or insert the aluminum alloy strip into the aluminum alloy fillet 1 using a conform extruder, etc.
It may be extruded around P in a tubular shape.
本発明において、電気用Ａ（地金に７ｒを０．０２〜０
．０５％添加したのは、八（の導電率をあまり低
下させることなく、加工硬化性を高めると共に製造工程
における熱影響、例えば溶接熱や加工熱による軟化を抑
え、０ＰＧＷ光ユニット用Ａｉ！合金管として十分な導
電率と強度を得るためであり、Ｚｒ添加量が０．０２％
未）ｉチでは十分な加工硬化が得られす、０．０５％を
越えると八（合金管の導電率の低下が大ぎくなるためで
ある。またＯＰを内蔵せしめた△（合金管に冷間で３０
％以」−の減面加工を加えたのは加工硬化により十分な
強度を得るためである。In the present invention, electrical A (0.02 to 0 7r in base metal)
．． The reason for adding 05% is to reduce the conductivity of
Ai! for 0PGW optical units improves work hardenability and suppresses softening due to thermal effects in the manufacturing process, such as welding heat and processing heat, without causing deterioration. This is to obtain sufficient electrical conductivity and strength as an alloy tube, and the amount of Zr added is 0.02%.
If it exceeds 0.05%, the electrical conductivity of the alloy tube will decrease significantly. 30 between
The reason why the area reduction process was applied is to obtain sufficient strength through work hardening.
以下本発明を実施例について説明する。The present invention will be described below with reference to Examples.
実施例（１）
電気用Ａ（地金ＬＪ Ｉ ５）１２１１０）を溶融し、
これにＺｒを添加して第１表に示す組成の合金を溶製し
、これを水冷鋳造した鋳塊を圧延加工し、巾２５．１ｍ
ｍ、Ｗさ０，５＃の条を作成した。この条をＯＰに被せ
ながら丸めて管状に溶接して外径５ ｍａｒ、肉厚０．
５＃のＯＰ内蔵八へ合金管とした後、種々の減面率で伸
線加工を加え、ＯＰ Ｇ Ｗ光ユニットを製造した。こ
の０ＰＧＷよりＯＰを抜き取ったＡ（合金管について導
電率及び強度を測定した。Example (1) Electrical use A (base metal LJ I 5) 12110) was melted,
Adding Zr to this, an alloy having the composition shown in Table 1 was melted, and the ingot was water-cooled and rolled to a width of 25.1 m.
A strip with a width of 0.5 m and a width of 0.5 # was created. This strip was rolled up while covering the OP and welded into a tubular shape with an outer diameter of 5 mar and a wall thickness of 0.
After forming a 5# OP alloy tube with a built-in OP, wire drawing was performed at various area reduction rates to produce an OP GW optical unit. OP was extracted from this 0PGW and the conductivity and strength of the A (alloy tube) were measured.
その結果を第１図及び第２図に示す。The results are shown in FIGS. 1 and 2.
第１表
合 金 別 ＮＯ合金組成（％）
ｒＡ ｆ
純Ａ ｆ １ ＞ ９９．６
５化較用合金 ２ ０．０１ 残本発明
用合金 ３ ０．０２
４ ０．０４
５ ０．０５
比較用合金 （３０，０６
第１図は７ｒ添加量と導電率の関係を示すもので、図か
ら判るようにＺｒの添加化に応じて導電率は低下するも
、Ｚｒ添加量が０．０５％以下であれば、その割合が小
さい。Table 1 NO alloy composition by alloy (%) rA f Pure A f 1 > 99.6
5 chemical comparative alloy 2 0.01 Remaining invention alloy 3 0.02 4 0.04 5 0.05 Comparative alloy (30,06 Figure 1 shows the relationship between the amount of 7r added and the electrical conductivity. As can be seen from the figure, the electrical conductivity decreases as Zr is added, but if the amount of Zr added is 0.05% or less, the rate is small.
第２図は減面率と引張強さの関係を示ザもので、図にお
いて（１）は純ＡＪ２鎗、（２）はＺｌ・を０．０１％
添加した比較用合金管、く３）は７「を０．０２％添加
した本発明用合金管、（４）はＺｒを０．０４％添加し
た本発明用合金管、〈５）は７ｒを０．０５％添加した
本発明用合金管、（６）は７−ｒを０．０６％添加した
比較用合金管を示すもので、図がら判るように従来のｌ
ｌ１Ａフ管（１）は加工にＪ：る硬化の度合が小さく、
９０％の減面加工を行なっても引張強さは１５Ｋｆｌ／
ｓに到達しない。これに対し７ｒを添加したものは、添
加量に応じて硬化の度合が大きくなり、本発明用合金管
（３）のように７ｒを０．０２％添加したものでは約６
５％の減面加工で引張強さ１５Ｋ（］／姻２に到達し、
本発明用合金管〈５）のように７ｒを０．０５％添加し
たものでは約５０％の減面加工で引張強さ１５Ｋｇ／ｍ
ｍ２に到達する。またＺｒをｏ、ｏｉ％添加した比較用
合金管（２）では引張強さ１５Ｋ（１／胴２とするため
には約８０％以上の減面が必要となり、硬化の度合が小
さく、Ｚ「を０．００％添加した比較用合金管（６）で
は加工硬化の度合が大きい反面、第１図から判るように
導電率の低下が著しく、ＯＰ Ｇ Ｗ光ユニット用Ａｆ
合金管に適用しがたい。Figure 2 shows the relationship between area reduction rate and tensile strength. In the figure, (1) is pure AJ2 spear, and (2) is 0.01% Zl.
Comparative alloy tube with added Zr, (3) is the alloy tube of the present invention with 0.02% of 7r added, (4) is the alloy tube of the present invention with 0.04% of Zr added, and (5) is the alloy tube with 7r added. The alloy tube of the present invention containing 0.05% of 7-r, and (6) the comparative alloy tube containing 0.06% of 7-r.
The l1A pipe (1) has a small degree of hardening during processing,
Even after 90% surface reduction processing, the tensile strength is still 15Kfl/
s is not reached. On the other hand, when 7r is added, the degree of hardening increases depending on the amount added, and when 0.02% of 7r is added, such as the alloy tube for the present invention (3), the degree of hardening increases with the addition amount.
A tensile strength of 15K (]/2 is achieved with 5% surface reduction processing.
The alloy tube for the present invention (5) with 0.05% of 7r added has a tensile strength of 15 kg/m after approximately 50% surface reduction processing.
Reach m2. In addition, the comparison alloy tube (2) with Zr added at o, oi% has a tensile strength of 15K (1/2 in the shell), which requires a surface reduction of approximately 80% or more, and the degree of hardening is small. Although the comparative alloy tube (6) containing 0.00% of A-F had a large degree of work hardening, as can be seen from Figure 1, the conductivity was significantly reduced, and the Af for OP GW optical unit.
Difficult to apply to alloy pipes.
実施例（２）
第１表に示す組成の合金を実施例（１）と同様にして水
冷鋳造した鋳跣を直径９ ｍｍφの荒引線に押出し、こ
れをコンフォーム押出機によりＯＰの周囲に外径５ ｍ
ｍ ｚ山開０．５ｍｍの管状に押し出した。Example (2) An alloy having the composition shown in Table 1 was water-cooled cast in the same manner as in Example (1) and extruded into a rough drawing wire with a diameter of 9 mm, and this was extruded around the OP using a conform extruder. Diameter 5 m
It was extruded into a tubular shape with a mz mountain opening of 0.5 mm.
これを種々の減面率で引抜加工した後、ＯＰを扱き取っ
て強度をＩ１１定した。その結果を第３図に示す。After drawing this at various area reduction rates, the OP was handled and the strength was determined to be I11. The results are shown in FIG.
第３図は第２図と同様にして減面率と引張強さの関係を
示すもので、減面率と引張強さの関係は第２図とほとん
ど同粁の加工硬化傾向が判る。FIG. 3 shows the relationship between area reduction rate and tensile strength in the same way as FIG. 2, and it can be seen that the relationship between area reduction rate and tensile strength shows almost the same work hardening tendency as in FIG. 2.
このように本発明方法によれば、導電率が若干低くなる
も、溶接又は押出加工時の軟化度が低く、冷間加工時の
力日工熱による軟化度も低くなって加工硬化が増大し、
０ＰＧＷ光ユニツ１〜ＬＴＩ Ａ 美白金管に十分な導
電率と強度を付与し得るもので・、工業上顕著な効果を
奏するものである。As described above, according to the method of the present invention, although the conductivity is slightly lower, the degree of softening during welding or extrusion processing is low, and the degree of softening due to heat during cold working is also low, and work hardening increases. ,
0PGW Hikari Units 1~LTI A It can impart sufficient electrical conductivity and strength to whitening brass tubes, and has a remarkable industrial effect.
第１図は電気用Ａ（の７ｒ添加量と導電率の関係を示す
説明図、第２図は本発明方法の一実施例により製造した
。ＰＧＷ光ユニット用八ρへ金管の減面率と引張強さの
関係を示す説明図、第３図は本発明方法の他の実施例に
より製造した０ＰＧＷ光ユニット用／１合金管の減面率
と引張強さの関係を示す説明図である。
第１図
第２図
第３図Fig. 1 is an explanatory diagram showing the relationship between the amount of 7r added and the electrical conductivity of A for electrical use, and Fig. 2 is an explanatory diagram showing the relationship between the amount of 7r added and the electrical conductivity. FIG. 3 is an explanatory diagram showing the relationship between the area reduction ratio and the tensile strength of a /1 alloy tube for 0PGW optical unit manufactured by another example of the method of the present invention. Figure 1 Figure 2 Figure 3
Claims (3)
用Ａ、ｅからなるアルミニウム合金管内に、光ファイバ
ーを内蔵せしめた後、該管に冷間で３０％以上の減面加
工を加えることを特徴とするＡ（−光フアイバー複合架
空地線の光ユニツト製造方法。(1) After embedding an optical fiber in an aluminum alloy tube consisting of Z r 0.02 to 0.05 wt% and the remainder electrical A and e, the tube is cold processed to reduce its area by 30% or more. A (- A method for manufacturing an optical unit of an optical fiber composite overhead ground wire.
用へ（からなるアルミニウム合金条を、光ファイバーに
被せながら丸めて管状に溶接して管内に光ファイバーを
内蔵せしめる特許請求の範囲第１項記載のＡ（−光フア
イバー複合架空地線の光ユニツト製造方法。(2) ZrO, 02 to 0.05 wt%, the remainder for electrical purposes (Claim 1) An aluminum alloy strip consisting of Z r O, 02 to 0.05 wt%, the remainder being for electrical use, is rolled up and welded into a tubular shape while covering an optical fiber, so that the optical fiber is built into the tube. A (--A method for manufacturing an optical unit of an optical fiber composite overhead ground wire.
用Ａ℃からなるアルミニウム合金ビレットを、光ファイ
バーの周囲に押出して管状とすることにより、管内に光
ファイバーを内蔵せしめる特許請求の範囲第１項記載の
Ａ、ｆ２−光フアイバー複合架空地線の光ユニツト製造
方法。(3) By extruding an aluminum alloy billet consisting of 0.02 to 0.05 wt% of 7r and the balance being A°C for electrical use around an optical fiber to form a tube, the optical fiber is built into the tube.Claim 1 A, a method for manufacturing an optical unit of f2-optical fiber composite overhead ground wire as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58082270A JPS59207505A (en) | 1983-05-11 | 1983-05-11 | Method of producing optical unit of aluminum-optical fiber composite aerial ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58082270A JPS59207505A (en) | 1983-05-11 | 1983-05-11 | Method of producing optical unit of aluminum-optical fiber composite aerial ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59207505A true JPS59207505A (en) | 1984-11-24 |
Family
ID=13769788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58082270A Pending JPS59207505A (en) | 1983-05-11 | 1983-05-11 | Method of producing optical unit of aluminum-optical fiber composite aerial ground wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59207505A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561003A (en) * | 1979-06-15 | 1981-01-08 | Sumitomo Electric Ind Ltd | Production of reinforced optical cable |
-
1983
- 1983-05-11 JP JP58082270A patent/JPS59207505A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561003A (en) * | 1979-06-15 | 1981-01-08 | Sumitomo Electric Ind Ltd | Production of reinforced optical cable |
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