JPS6356617B2 - - Google Patents
Info
- Publication number
- JPS6356617B2 JPS6356617B2 JP17649885A JP17649885A JPS6356617B2 JP S6356617 B2 JPS6356617 B2 JP S6356617B2 JP 17649885 A JP17649885 A JP 17649885A JP 17649885 A JP17649885 A JP 17649885A JP S6356617 B2 JPS6356617 B2 JP S6356617B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- hardness
- magnetic tape
- plating
- internal material
- 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
- 239000000463 material Substances 0.000 claims description 29
- 230000005291 magnetic effect Effects 0.000 claims description 15
- 238000007747 plating Methods 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 230000005389 magnetism Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 229910001096 P alloy Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- -1 hypophosphorous acid ion Chemical class 0.000 description 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical class [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- GQZXNSPRSGFJLY-UHFFFAOYSA-N hydroxyphosphanone Chemical compound OP=O GQZXNSPRSGFJLY-UHFFFAOYSA-N 0.000 description 1
- 229940005631 hypophosphite ion Drugs 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 239000002907 paramagnetic material Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
- Rolls And Other Rotary Bodies (AREA)
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、磁気テープ使用の機器、特にビデオ
デツキ及びそのビデオテープ並びに音響デツキ及
びそのカセツトテープ等に使用される磁気テープ
用のガイドローラー及びガイド軸の製造方法に関
する。Detailed Description of the Invention [Objective of the Invention] (Industrial Application Field) The present invention is directed to magnetic tapes used in devices using magnetic tapes, particularly video decks and their video tapes, sound decks and their cassette tapes, etc. The present invention relates to a method for manufacturing a guide roller and a guide shaft.
（従来の技術）
磁気テープを使用し画像、文章、音声を保管又
は取り出し再生するビデオデツキ及びそのビデオ
テープ等には、第２図に示すように、テープの進
行を促す為のパイプ状のローラー又は円筒状の軸
等が種々の形態で使用されている。(Prior Art) As shown in Figure 2, video decks and video tapes that use magnetic tape to store, retrieve, and play back images, text, and audio are equipped with pipe-shaped rollers or rollers to promote the advancement of the tape. Cylindrical shafts and the like are used in various forms.
そして、これらの磁気テープ用ガイドローラー
及びガイド軸には、
(イ) 音声ヘツド等に密着させながら摺動させる為
の表面の滑らかさを求める表面粗度への要求
と、
(ロ) 長時間の摺動に対しても摩耗を生じない耐摩
耗性の要求と、
(ハ) 記憶媒体としての磁気を乱さないための非磁
性であることの要求、
等がその基本的機能として求められ、特にこの要
求の中で最近メタルテープの普及に伴いテープ表
面の硬度がアツプしたことにより耐摩耗性への要
求が厳しくなる傾向にある。 These guide rollers and guide shafts for magnetic tapes are required to have (a) a smooth surface so that they can slide in close contact with audio heads, etc., and (b) long-term durability. The basic functions required are the following: abrasion resistance that does not cause wear even when sliding, and (c) non-magnetic properties so as not to disturb the magnetism as a storage medium. Among these demands, the hardness of the tape surface has increased with the recent spread of metal tapes, and as a result, the demand for abrasion resistance has tended to become stricter.
そして、これら機能をある程度満たすテープ軸
及びローラーとして、従来セラミツク材、及び非
磁性金属のSUS−316材が使用され、これを切削
加工若しくは塑性加工によつて製作している。 Conventionally, ceramic materials and non-magnetic metal SUS-316 materials have been used as tape shafts and rollers that satisfy these functions to some extent, and are manufactured by cutting or plastic working.
しかし、セラミツク材は、耐摩耗性に優れ及び
非磁性体である点理想的であるが、あまりに加工
性が悪く且つ材料的に非常に高価である。一方、
SUS−316はこのセラミツク材に対して経済的に
安価ではあるが、やはり加工性は悪く、且つ耐摩
耗性に劣るためメタルテープに対しての使用が困
難化している。そして両者に共通しているのは加
工性の悪さ故に製造コストが非常に高いことであ
る。 However, although ceramic materials are ideal in that they have excellent wear resistance and are non-magnetic, they are extremely difficult to work with and are very expensive materials. on the other hand,
Although SUS-316 is economically cheaper than this ceramic material, it still has poor workability and poor wear resistance, making it difficult to use for metal tapes. What both of them have in common is that their manufacturing costs are extremely high due to their poor workability.
（本発明の解決しようとする問題点）
本発明はこのような実情に鑑みてなされたもの
で、その目的とするところは、(a)メタルテープの
普及に合わせて耐摩耗性に一段と優れた機能を保
持させ(b)且つ従来品の欠点である加工性を改善し
て経済面でのコストダウンを図ることにあり、終
局として一段と優れた機能性と経済性を具備した
ガイドローラー及びガイド軸の製造方法を提供せ
んとするものである。(Problems to be Solved by the Present Invention) The present invention was made in view of the above-mentioned circumstances, and its objectives are (a) to provide a material with even better abrasion resistance in line with the spread of metal tape; (b) The aim is to reduce economic costs by retaining functionality and improving workability, which is a drawback of conventional products.In the end, we have created guide rollers and guide shafts that have even better functionality and economy. The purpose of this invention is to provide a method for manufacturing.
［発明の構成］ 以下実施例を基に本発明の構成を説明する。[Structure of the invention] The structure of the present invention will be explained below based on examples.
本発明が対象とするガイドローラーの斜視図を
表わした第１図において、１が常磁性体で且つ加
工容易なる黄銅材又はアルミニウム材で形成した
内部材で、殆ど磁性を有さず且つ切削が通常の切
削機にて行なえる加工容易性を有するものであ
る。 In FIG. 1 showing a perspective view of the guide roller to which the present invention is applied, numeral 1 denotes an inner member made of a paramagnetic and easily machined brass material or aluminum material, which has almost no magnetism and is easy to cut. It is easy to process using a normal cutting machine.
そして、２が硬度性を保持するニツケルとリン
との合金で被膜を形成した外周部で、上記内部材
１の表面が比較的軟質であることからこの硬度を
HV500以上に上昇させると共にニツケル合金の
粒子構造の緻密さから表面粗度の向上をも狙いと
したものである。 2 is the outer peripheral part formed with a coating of an alloy of nickel and phosphorus that maintains hardness, and since the surface of the inner material 1 is relatively soft, this hardness is maintained.
The aim was to raise the HV to 500 or higher, and also to improve the surface roughness due to the fine particle structure of the nickel alloy.
その製法は、以下の工程に従つてなされる。 The manufacturing method is performed according to the following steps.
（内部材の切削加工工程）
先ず、常磁性体であり且つ切削性の良好なる黄
銅材又はアルミニウム棒材を基材とし、これを高
速切削自動機等にて、ガイド軸又はガイドローラ
ーの素形状に切削加工して内部材１を形成する。(Cutting process for internal materials) First, a brass material or aluminum bar material, which is a paramagnetic material and has good machinability, is used as a base material, and this is cut into the original shape of the guide shaft or guide roller using a high-speed automatic cutting machine. The internal material 1 is formed by cutting.
この際、磁気テープとの摺動面となる外周面は
切削バイトにて可及的に滑らか仕上げとし、粗度
指定において2.0S以下の精度とすることが望まし
い。 At this time, it is desirable that the outer peripheral surface, which will be the sliding surface with the magnetic tape, be finished as smooth as possible using a cutting tool, and the roughness should be specified with an accuracy of 2.0S or less.
（平転造及びバレル研磨工程）
次に、上記切削加工された内部材１を表面平滑
な転造ダイスに掛けて、その摺動圧により切削バ
イト目の目潰しを促して内部材外周面の平滑度を
上昇させると同時に、この転造により材料表面の
硬度を上昇させて、次作業のバレル研磨時にキ
ズ、打痕の付くことを防止する。(Flat rolling and barrel polishing process) Next, the machined internal material 1 is applied to a rolling die with a smooth surface, and the sliding pressure of the rolling die promotes the blinding of the cutting bite to smooth the outer circumferential surface of the internal material. At the same time, this rolling also increases the hardness of the material surface to prevent scratches and dents during the next barrel polishing operation.
次に、内部材外周面の平滑度をさらに上昇させ
るために、下記の条件でバレル研磨を施す。 Next, in order to further increase the smoothness of the outer peripheral surface of the inner material, barrel polishing is performed under the following conditions.
〈バレル研磨条件〉 機械：遠心バレル 7.4L×４バレル チツプ：BB4 コンパウンド：N78TE 時間：20分 この結果仕上げ粗度は0.8S以下となる。<Barrel polishing conditions> Machine: Centrifugal barrel 7.4L x 4 barrels Chip: BB4 Compound: N78TE Time: 20 minutes As a result, the finish roughness is 0.8S or less.
（鍍金工程）
次いで、内部材１外周面の硬度をメタルテープ
の使用にも耐え得るよう硬度アツプと表面粗度の
向上を目的として鍍金工程を施すが、この鍍金は
電解鍍金では電気の通り易い処と通り難い処との
バラツキを生じ、厚みが不均一となることから、
無電解鍍金を次の通りに行なう。(Plating process) Next, a plating process is performed to increase the hardness and surface roughness of the outer peripheral surface of the inner material 1 so that it can withstand the use of metal tape, but this plating is difficult to conduct electricity when electrolytically plated. This results in uneven thickness due to unevenness between areas and areas that are difficult to pass.
Electroless plating is performed as follows.
上記バレル研磨を完了した内部材１を、次亜燐
酸イオン溶液中に浸漬させると、
（H2PO2）-＋H2O→Ｈ（HPO3）＋2H
となり、この水素イオンがニツケルイオンを還元
して金属ニツケルを析出し、
Ni2+＋2H→Ni＋2H
さらに、この水素イオンが次亜燐酸イオンと反応
してリンを析出し、
（H2PO2）-→Ｐ＋OH-＋H2O
となり、この結果、ニツケルとリンとの合金が内
部材外周面に鍍金されるが、この塗膜厚みは５ミ
クロンから30ミクロンとするのが望ましい。 When the internal material 1 that has been barrel-polished is immersed in a hypophosphorous acid ion solution, (H 2 PO 2 ) - +H 2 O→H(HPO 3 ) + 2H, and these hydrogen ions reduce the nickel ions. Ni 2+ +2H→Ni+2H Further, this hydrogen ion reacts with hypophosphite ion to precipitate phosphorus, resulting in (H 2 PO 2 ) - →P+OH - +H 2 O, and as a result, An alloy of nickel and phosphorus is plated on the outer peripheral surface of the inner material, and the thickness of this coating is preferably 5 to 30 microns.
この鍍金により、内部材の表面がニツケル及び
リン合金の極めて硬質の金属膜で覆われ表面硬度
が大幅に上昇し、メタルテープにも耐え得る耐摩
耗性が具備される。 Through this plating, the surface of the internal material is covered with an extremely hard metal film of nickel and phosphorus alloy, greatly increasing the surface hardness and providing wear resistance that can withstand metal tape.
また無電解鍍金はその塗膜が均一に形成される
ため表面が平滑面となり、素材表面粗度が著しく
改善される。 In addition, since electroless plating forms a uniform coating, the surface becomes smooth, and the surface roughness of the material is significantly improved.
（加熱工程）
さらに、上記鍍金工程を終了したものを、約
700℃−800℃の範囲で加熱炉に投入し加熱処理を
行なう。(Heating process) Furthermore, the product that has undergone the above plating process is
Heat treatment is performed by placing it in a heating furnace at a temperature in the range of 700℃-800℃.
この加熱処理は第１に残留磁気の消徐を目的と
したもので、ニツケル鍍金はそのままでは若干の
磁性を残し、テープを吸着して製品化不可能であ
る。しかし、上記温度範囲で加熱処理を施すと、
熱変化で消磁効果が惹起される。この結果、下表
の通りの成果が得られた。 This heat treatment is primarily intended to eliminate residual magnetism, and if nickel plating remains as it is, it will retain some magnetism and will attract the tape, making it impossible to commercialize it. However, when heat treatment is performed in the above temperature range,
Thermal changes induce a demagnetizing effect. As a result, the results shown in the table below were obtained.
表−１ 加熱処理による消磁効果 処理温度 処理時間 結果 600℃ ３時間 磁気残留有り テープがローラーに 吸着される 700℃ １時間 磁気なし テープがローラーに 殆ど吸着されない 780℃ １時間 磁気なし テープがローラーに 完全に吸着されない 800℃ ３時間 磁気なし テープがローラーに 完全に吸着されない 但し、この温度以上 では硬度が軟化する。 Table-1 Demagnetization effect by heat treatment Processing temperature Processing time Result 600℃ for 3 hours with magnetic residual tape on roller be absorbed 700℃ 1 hour No magnetism tape on roller hardly absorbed 780℃ 1 hour No magnetism tape on roller not completely absorbed 800℃ 3 hours No magnetism tape on roller not completely absorbed However, above this temperature The hardness will soften.
第２に、この加熱処理は鍍金塗膜と素材との密
着性の向上と表面硬度の上昇を目的とするもの
で、通常鍍金塗膜はHV450前後であるものが加
熱処理でHV500〜1000程度まで硬度が上昇する。
但し、800℃以上では、軟化が始まるのは表１の
通りであり、従つて、温度範囲を800℃以下とす
る。 Secondly, this heat treatment aims to improve the adhesion between the plating film and the material and increase the surface hardness.The plating film normally has an HV of around 450, but with heat treatment it can increase the hardness to HV500 to 1000. Hardness increases.
However, as shown in Table 1, softening begins at temperatures above 800°C, so the temperature range is set to below 800°C.
（最終バレル工程）
上記工程を経たガイド軸及びガイドローラー
は、最終的にバレル工程で鍍金時の析出突起物の
除去、鍍金色のシミ、変色の除去を行ない製品を
得る。(Final Barrel Process) The guide shaft and guide roller that have gone through the above steps are finally subjected to a barrel process to remove precipitated protrusions during plating, plating color stains, and discoloration to obtain a product.
［発明の効果］
本発明製法は以上のようで、内部材１を成形の
後、この内部材表面に平転造及びバレル研磨を施
し硬度上昇と粗度の向上を図り、さらに、該内部
材に無電解ニツケル鍍金を施してニツケル合金に
よる硬質の外周面を形成し、さらに、約700℃−
800℃の範囲加熱処理を加えて磁性除去と硬度上
昇を図つたことにより、加工容易で製造コストを
大幅に引き下げる製造が可能となつた。[Effects of the Invention] As described above, the manufacturing method of the present invention is such that after molding the internal material 1, flat rolling and barrel polishing are performed on the surface of the internal material to increase hardness and roughness. Electroless nickel plating is applied to the surface to form a hard outer surface made of nickel alloy.
By applying heat treatment in a range of 800℃ to remove magnetism and increase hardness, it has become possible to manufacture the material with ease of processing and significantly lower manufacturing costs.
又、その表面に外周部２にHV500以上の硬度
性を保持するニツケル合金の被膜を形成できるの
で、表面硬度が上昇して耐摩耗性が具備され、メ
タルテープを長時間使用しても十分これに耐えこ
とができ、且つ、有効な消磁処理を施したから磁
性テープのガイド体として使用に何等障害を起こ
すこともない。 In addition, since a nickel alloy coating with a hardness of HV500 or higher can be formed on the outer peripheral part 2 of the surface, the surface hardness increases and wear resistance is achieved, which is sufficient even when the metal tape is used for a long time. Since it can withstand high temperatures and has been subjected to effective demagnetization treatment, it will not cause any problems when used as a guide body for magnetic tape.
図面は本発明の実施例を示すもので、第１図が
本発明製法の対象となる磁気テープ用ガイドロー
ラーの一部切欠斜視図、第２図が磁気テープ用ガ
イドローラー及びガイド軸が使用されているテー
プデツキの一部模式的斜視図。
１……内部材、２……外周部。
The drawings show embodiments of the present invention, and FIG. 1 is a partially cutaway perspective view of a magnetic tape guide roller to which the manufacturing method of the present invention is applied, and FIG. 2 is a partially cutaway perspective view of a magnetic tape guide roller and a guide shaft used. A partial schematic perspective view of a tape deck. 1...Internal material, 2...Outer peripheral part.
Claims (1)
テープ用ガイドローラー及びガイド軸の型に内部
材を成形し、この内部材表面に平転造及びバレル
研磨を施し硬度上昇と粗度の向上を図り、次い
で、該内部材に無電解ニツケル鍍金を施してニツ
ケル合金による硬質の外周面を形成し、さらに、
700℃〜800℃の範囲で加熱処理を行ない磁性除去
と硬度上昇を図つたことを特徴とする磁気テープ
用ガイドローラー及びガイド軸の製造法。1. The internal material is formed into the mold of the magnetic tape guide roller and guide shaft by cutting a brass or aluminum material, and the surface of this internal material is flat rolled and barrel polished to increase hardness and roughness. Next, electroless nickel plating is applied to the internal material to form a hard outer peripheral surface made of nickel alloy, and further,
A method for manufacturing a guide roller and a guide shaft for a magnetic tape, characterized in that the magnetic tape is heat-treated in the range of 700°C to 800°C to remove magnetism and increase hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17649885A JPS6236769A (en) | 1985-08-09 | 1985-08-09 | Guide roll and guide shaft for magnetic tape and their production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17649885A JPS6236769A (en) | 1985-08-09 | 1985-08-09 | Guide roll and guide shaft for magnetic tape and their production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6236769A JPS6236769A (en) | 1987-02-17 |
| JPS6356617B2 true JPS6356617B2 (en) | 1988-11-08 |
Family
ID=16014702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17649885A Granted JPS6236769A (en) | 1985-08-09 | 1985-08-09 | Guide roll and guide shaft for magnetic tape and their production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6236769A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2523931Y2 (en) * | 1988-03-29 | 1997-01-29 | 第一精工 株式会社 | Guide roller assembly for video tape |
| JPH0710826U (en) * | 1993-07-15 | 1995-02-14 | 宏和産業株式会社 | Guide roller |
-
1985
- 1985-08-09 JP JP17649885A patent/JPS6236769A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6236769A (en) | 1987-02-17 |
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