JPS6037233B2 - Manufacturing equipment for anti-corrosion wire for high tension cables - Google Patents
Manufacturing equipment for anti-corrosion wire for high tension cablesInfo
- Publication number
- JPS6037233B2 JPS6037233B2 JP10963877A JP10963877A JPS6037233B2 JP S6037233 B2 JPS6037233 B2 JP S6037233B2 JP 10963877 A JP10963877 A JP 10963877A JP 10963877 A JP10963877 A JP 10963877A JP S6037233 B2 JPS6037233 B2 JP S6037233B2
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- wire
- hot air
- section
- stranded wire
- 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.)
- Expired
Links
- 238000005260 corrosion Methods 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000007664 blowing Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
【発明の詳細な説明】
この発明は、アンカー工法等に使用されるハイテンショ
ンケーブル用防食ワイヤ一製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for producing anti-corrosion wire for high tension cables used in anchor construction methods and the like.
従来、この種の防食ワイヤ−として、回転する撚線機よ
り出た絶縁被を有する複数本の心線を集合ダィにて集合
させ、この集合ダィ又はその直前においてポリブデン、
低分子量ポリィソブチレン等の充填混合物をその注入器
より心線に注入してケーブル心とし、次いでこのケーブ
ル心の上に繊維織布テープを巻回し、これをガイドロー
ル上を通してキャプスタンにけん引して製造する装置が
知られている（椿公昭４９一３４４４７号）。Conventionally, as this type of anti-corrosion wire, a plurality of core wires having insulation sheathing coming out of a rotating wire twisting machine are assembled in a collecting die, or at or just before the collecting die, polybdenum,
A filling mixture such as low molecular weight polyisobutylene is injected into the cable core through a syringe to form a cable core, and then a woven fiber tape is wound over the cable core, which is then passed over guide rolls and pulled to a capstan. A device is known (Tsubaki Kosho No. 49-34447).
ところが、この製造装置では、心線に注入する充填混合
物の粘度調節が大変むつかしく、その粘度が高すぎると
混和物の注入が因なんで心線の内部まで混和物が侵入さ
れず、逆にその粘度が低すぎると、混和物が心線よりた
れ下るという問題がある。また、この心線には通常水分
が付着しているので、混和物が注入してもこの水分にじ
やまされて心線内部までこれが十分充填されないとう問
題がある。この発明は、上記した実情に鑑みてなされた
もので、すぐれた防食効果を具現するハイテンションケ
ーブル用防食ワイヤ−製造装置を提供することをその目
的とする。However, with this manufacturing equipment, it is very difficult to adjust the viscosity of the filling mixture injected into the core wire, and if the viscosity is too high, the mixture will not penetrate into the inside of the core wire due to the injection of the mixture, and conversely, the viscosity will increase. If it is too low, there is a problem that the admixture hangs down from the core wire. Further, since moisture is usually attached to the core wire, there is a problem in that even if a mixture is injected, the mixture is dampened by the moisture and cannot be sufficiently filled into the core wire. The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a corrosion-resistant wire manufacturing apparatus for high tension cables that achieves excellent corrosion-proofing effects.
この発明の要旨は、より線を挟持して移送せしめる上下
一対の送りロールと、該より線に熱風を吹きつけるヒー
ターを備えてなる熱風吹込部と、熱せられた線に防食材
を供給塗布する防食材供給部と、防食材の供給された線
を冷却する前記熱風吹込部と連結する常温送風部と、冷
却されたより線の外周を防食テープで被覆する防食テー
プ被覆部とからなるハイテンションケーブル用防食ワイ
ヤ−製造装置である。上託した構成において、防食材と
しては、次のものが使用される。The gist of this invention is to provide a pair of upper and lower feed rolls that sandwich and transport the stranded wire, a hot air blowing section that includes a heater that blows hot air onto the stranded wire, and a method that supplies and coats the heated wire with an anti-corrosion agent. A high tension cable consisting of an anticorrosive supply section, a normal temperature blower section connected to the hot air blower section that cools the wires supplied with anticorrosive material, and an anticorrosion tape covering section that covers the outer periphery of the cooled stranded wire with an anticorrosion tape. Corrosion-proof wire manufacturing equipment. In the entrusted configuration, the following are used as anticorrosive materials:
ｍ 防錆油
べトロラタム系防錆油、防錆グリース、防錆潤滑油、ア
スファルト等。m Anti-rust oil: Betrolatum-based anti-rust oil, anti-rust grease, anti-rust lubricant, asphalt, etc.
（２）熱可塑性物質
ポリアマィド樹脂、アスファルト、ポリエチレン、ポリ
プロピレン、ワックス、／ｆラフイン、エチレン−酢酸
ビニール共重合樹脂、ロジン、ロジン譲導体、フェノー
ル樹脂、ポリエステル樹脂等。(2) Thermoplastic materials polyamide resin, asphalt, polyethylene, polypropylene, wax, /f-roughin, ethylene-vinyl acetate copolymer resin, rosin, rosin derivative, phenolic resin, polyester resin, etc.
【３｝ 触媒または熱で硬化する物質
ポリウレタン樹脂、ェポキシ樹脂、ポリサルファィド、
シリコン樹脂、ジアリルフタレート樹脂、液状ポリブタ
ジェン、液状クロロプレン塩ビプラスチゾル等。[3] Substances that harden with catalyst or heat: polyurethane resin, epoxy resin, polysulfide,
Silicone resin, diallyl phthalate resin, liquid polybutadiene, liquid chloroprene vinyl chloride plastisol, etc.
これらのうち、一たん熱風で熱せられた後、常温で冷却
されることから考えて、防錆油及び熱可塑性物質の使用
が望ましい。Among these, it is preferable to use rust preventive oil and thermoplastics, considering that they are once heated with hot air and then cooled at room temperature.
より線に熱風を吹きつける際の温度は、使用される防食
材の融点以上の温度が必要で、かつまた冷却された時、
より線内部に含まれていた空気が収縮して、より線の筒
面に防食材が十分に塗布される温度が要であり、これを
具体的に示せば５００〜６００００が好適である。The temperature when blowing hot air onto the stranded wire must be higher than the melting point of the anticorrosive material used, and when the wire is cooled,
The key point is a temperature at which the air contained within the stranded wire contracts and the anticorrosion coating is sufficiently applied to the cylindrical surface of the stranded wire, and specifically, a temperature of 500 to 60,000 is suitable.
なお、この熱風は、後述する常温送風部と連結するヒー
ターにより所定の温度に熱せられて、より線に吹きつけ
られるものである。Note that this hot air is heated to a predetermined temperature by a heater connected to a room-temperature blowing section, which will be described later, and is blown onto the stranded wire.
防食材供給部は、上記した防食材を供給圧入塗布するポ
ンプと、圧力計等よりなる。The anti-corrosion supply unit includes a pump for supplying and press-fitting the anti-corrosion agent described above, a pressure gauge, and the like.
常温送風部は、送風機と、送風機から送風される常温の
風より線へ送るらせん状のフハンよりなる。The room-temperature blower section consists of a blower and a spiral fan that sends the room-temperature air blown from the blower to the strands.
防食テープ被覆部は、防食テープリールと、譲り−ルを
支持するアームと、該リールを回転せしめるモーターと
、ギア等とよりなる。The anti-corrosion tape covering section consists of an anti-corrosion tape reel, an arm that supports the transfer reel, a motor that rotates the reel, gears, and the like.
なお、防食テープとしては、合成ゴムまたは合成樹脂製
連続気泡スポンジ、ァスベスト、紙、不織布、織布、ガ
ラスウール等よりなる可操性芯材に、ベトロラタム、防
食塗料、防食ワニス等の防食粘着物が含浸されてなるも
のをいう。なお、使用場所、気候条件等により、要すれ
ば、ポリエチレン、塩化ビニリデン、塩化ビニ−ル、ポ
リプロピレン、四フッ化エチレン、−エチレン共重合樹
脂等よりなるフィルムが、該防食テ−プの表面に被覆さ
れる。次に、この発明の−実施例を添付の図面にもとづ
き説明する。第１図は、この防食ワイヤ一の製造装置の
簡略断面図を示し、第２図は、同装置により製造される
防食ワイヤ−の断面図を示す。The anticorrosion tape may be made of a flexible core material made of synthetic rubber or synthetic resin open-cell sponge, asbestos, paper, nonwoven fabric, woven fabric, glass wool, etc., and an anticorrosive adhesive such as vetrolatum, anticorrosive paint, or anticorrosive varnish. is impregnated with Depending on the location of use, climatic conditions, etc., if necessary, a film made of polyethylene, vinylidene chloride, vinyl chloride, polypropylene, tetrafluoroethylene, -ethylene copolymer resin, etc. may be applied to the surface of the anticorrosive tape. coated. Next, embodiments of the present invention will be described based on the accompanying drawings. FIG. 1 shows a simplified cross-sectional view of a manufacturing apparatus for this anti-corrosion wire, and FIG. 2 shows a cross-sectional view of the anti-corrosion wire manufactured by the same apparatus.
図において、１は防食ワイヤの構成単位であるＰＣ鋼よ
り線、２は、該より線を挟持して移送せしめる一対の送
りロ−ル、３は、送風機１０より送風される常温の風を
、ヒーター８で６０ぴ○の熱風にし、該熱風をより線１
へ吹きつける熱風吹込部、４は、防食材供給部で、これ
を、５で示される防食材供給用ポンプ、６で示される防
食材、７で示される圧力計よりなり、９は、より線１へ
常温の風を吹きつけるラセン状のファンよりなる常温送
風部、１１は、防食テープ被覆部で、これは、１２で示
されるモーター、１３で示されるギアー、１４で示され
る防食テープリール１５を支持するアームよりなり、１
６は、防食テープである。In the figure, 1 is a PC steel stranded wire which is a structural unit of the anti-corrosion wire, 2 is a pair of feed rolls that sandwich and transport the stranded wire, 3 is a room temperature wind blown by a blower 10, Heater 8 generates hot air of 60 pi○, and the hot air is heated to stranded wire 1.
The hot air blowing unit 4 is an anti-corrosion supply unit, which is composed of an anti-corrosion supply pump 5, an anti-corrosion supply 6, a pressure gauge 7, and a stranded wire 9. 1 is a normal-temperature blowing section consisting of a helical fan that blows room-temperature air to 1; 11 is an anti-corrosion tape covering section; It consists of an arm supporting 1
6 is an anticorrosion tape.
このような装置において、より線１が、移送速度５肌／
ｍｊｎで送りロール２，２により移送せられると、・熱
風吹込部３より６００午○の熱風が、このより線１の周
面に吹きつけられて熱せられる。In such a device, the stranded wire 1 has a transport speed of 5 skin/
When the wire is transported by the feed rolls 2, 2 at mjn, hot air of 600 hours is blown from the hot air blowing section 3 onto the circumferential surface of the stranded wire 1 to heat it.
熱せられたより線１は、次に防食材供給用ポンプにより
、時間当り２００〜３００その防食材５が、供給圧入塗
布される。防食材５の塗布されたより線１は、更に、常
温送風部９よりの常温による冷却により、該より線内部
に減圧状態が生じ、防食材５が第２図に示されるように
、その内部まで中実充填せられた状態となる。このよう
になされたより線は、更に、防食テープリ−ルー５によ
り防食テープ１６が自動的に被覆せられた後、所定の長
さにカットされる。この発明の効果は、次のとおりであ
る。The heated stranded wire 1 is then press-fitted with 200 to 300 coats of corrosion protection material 5 per hour by a corrosion protection supply pump. The stranded wire 1 coated with the corrosion-proofing material 5 is further cooled at room temperature by the room-temperature blower 9 to create a reduced pressure state inside the stranded wire, causing the corrosion-proofing material 5 to reach its inside as shown in FIG. It will be in a solid filled state. The thus-formed stranded wire is further automatically coated with anti-corrosion tape 16 by anti-corrosion tape reel 5, and then cut into a predetermined length. The effects of this invention are as follows.
ｍ 熱風吹込部よりより線に熱風を吹込んで加熱し、こ
れに防食材供給部より防食材を供給塗布し、次いでこの
防食材の塗布されたより線を常温送風部で冷却している
ので、より線は、付着水分がとばされて絶乾状態となっ
て防食材にふれ、その結果防食材は加熱されて低粘度に
なりより線の内部にまで中実充填され、しかも気泡も発
生せず、防食効果のすぐれた防食ワイヤ一が得られる。m Hot air is blown into the stranded wire from the hot air blowing section to heat it, then anti-corrosion is applied to it from the anti-corrosion supply section, and then the stranded wire coated with the anti-corrosion is cooled in the room temperature blowing section. The adhering moisture is blown off and the wire becomes completely dry and comes into contact with the anti-corrosive material.As a result, the anti-corrosive material is heated and has a low viscosity, filling the inside of the stranded wire solidly without generating any air bubbles. , a corrosion-resistant wire with excellent corrosion-proofing effect can be obtained.
■ この製造装置では、上託したように熱風吹込部によ
りより線に熱風を吹きけて加熱しているので、比較的粘
度の高い範囲の防食材料でも使用できる。‘３ー 上記
した製造装置であるから、長いワイヤ−でも、すぐれた
防食効果のある防食ワイヤ一を製造できる。(2) As mentioned above, this manufacturing equipment uses a hot air blower to blow hot air onto the stranded wires to heat them, so even anticorrosive materials with relatively high viscosity can be used. '3- Since the above-mentioned manufacturing apparatus is used, it is possible to manufacture a corrosion-resistant wire with an excellent corrosion-proofing effect even if it is a long wire.
図面はこの発明の一実施例を示したもので、第１図はこ
の発明の製造装置の簡略断面図、第２図は、上記製造装
置により製造される防食ワイヤ−の断面図である。
１・・・ＰＣ鋼より線、２・・・送りロール、３・・・
熱風吹込部、４・・・防食材供給部、６・・・防食材、
８・・・ヒータ−、９・・・常温送風部、１１・・・防
食テープ被覆部、１６・・・防食テープ。
第１図
第２図The drawings show one embodiment of the present invention, and FIG. 1 is a simplified cross-sectional view of a manufacturing apparatus of the present invention, and FIG. 2 is a cross-sectional view of a corrosion-resistant wire manufactured by the above-mentioned manufacturing apparatus. 1...PC steel stranded wire, 2...Feed roll, 3...
Hot air blowing unit, 4...Anti-corrosion supply unit, 6...Anti-corrosion protection,
8... Heater, 9... Room temperature blower section, 11... Anticorrosion tape covering section, 16... Anticorrosion tape. Figure 1 Figure 2
Claims (1)
ルと、該より線に熱風を吹きつけるヒーターを備えてな
る熱風吹込部と、熱せられたより線に防食材を供給塗布
する防食材供給部と、防食材の供給されたより線を冷却
する前記熱風吹込部と麗結する常温送風部と、冷却され
たより線の外周を防食テープで被覆する防食テープ被覆
部とからなるハイテンシヨンケーブル用防食ワイヤー製
造装置。1. A pair of upper and lower feed rolls that clamp and transfer the stranded wire, a hot air blowing section that includes a heater that blows hot air onto the stranded wire, and an anticorrosion supply section that supplies and coats the heated stranded wire with an anticorrosive agent. , manufacture of anti-corrosion wire for high tension cables, comprising: a normal temperature blower section that connects with the hot air blower section that cools the stranded wires supplied with anticorrosion; and an anticorrosion tape coating section that covers the outer periphery of the cooled strands with anticorrosion tape. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10963877A JPS6037233B2 (en) | 1977-09-12 | 1977-09-12 | Manufacturing equipment for anti-corrosion wire for high tension cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10963877A JPS6037233B2 (en) | 1977-09-12 | 1977-09-12 | Manufacturing equipment for anti-corrosion wire for high tension cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5442446A JPS5442446A (en) | 1979-04-04 |
| JPS6037233B2 true JPS6037233B2 (en) | 1985-08-24 |
Family
ID=14515350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10963877A Expired JPS6037233B2 (en) | 1977-09-12 | 1977-09-12 | Manufacturing equipment for anti-corrosion wire for high tension cables |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037233B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003679A (en) * | 1975-04-02 | 1977-01-18 | Hewlett-Packard Company | High pressure pump with metering |
| JPS6050282A (en) * | 1983-08-30 | 1985-03-19 | Jeol Ltd | Constant flow pump |
| JPS6067790A (en) * | 1983-09-21 | 1985-04-18 | Tokyo Rika Kikai Kk | High pressure constant volume pump for liquid chromatography |
| JPS61178571A (en) * | 1985-02-01 | 1986-08-11 | Jeol Ltd | Liquid feeding pump |
| JPH0627837Y2 (en) * | 1985-12-06 | 1994-07-27 | 日本電子株式会社 | Liquid delivery pump device |
| JPH0674555B2 (en) * | 1990-08-28 | 1994-09-21 | 神鋼鋼線工業株式会社 | Long pitch cable |
| JPH09274315A (en) * | 1996-04-09 | 1997-10-21 | Brother Ind Ltd | Photosensitive recording medium |
-
1977
- 1977-09-12 JP JP10963877A patent/JPS6037233B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5442446A (en) | 1979-04-04 |
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