KR900000247Y1 - Magnetic record tape - Google Patents
Magnetic record tape Download PDFInfo
- Publication number
- KR900000247Y1 KR900000247Y1 KR2019850016913U KR850016913U KR900000247Y1 KR 900000247 Y1 KR900000247 Y1 KR 900000247Y1 KR 2019850016913 U KR2019850016913 U KR 2019850016913U KR 850016913 U KR850016913 U KR 850016913U KR 900000247 Y1 KR900000247 Y1 KR 900000247Y1
- Authority
- KR
- South Korea
- Prior art keywords
- recording tape
- magnetic recording
- guide roller
- magnesia
- magnetic
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/85—Coating a support with a magnetic layer by vapour deposition
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/712—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the surface treatment or coating of magnetic particles
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/848—Coating a support with a magnetic layer by extrusion
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 자기기록 테이프의 제조장치를 보인 개략도.1 is a schematic view showing a conventional apparatus for manufacturing a magnetic recording tape.
제2도는 본 고안의 자기기록 테이프의 제조장치를 보인 개략도.2 is a schematic view showing an apparatus for manufacturing a magnetic recording tape of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : PET필름 8a, 8b : 마그네시아도가니2: PET film 8a, 8b: magnesia crucible
9a : Co 9b : Ni9a: Co 9b: Ni
본 고안은 자기기록 테이프의 제조장치에 관한 것으로, 특히 내식성이 우수한 금속박막형 자기기록 테이프를 제조할수 있게한 제조장치에 관한 것이다.The present invention relates to an apparatus for producing magnetic recording tape, and more particularly, to an apparatus for manufacturing a metal thin film magnetic recording tape having excellent corrosion resistance.
종래의 금속박막형 자지기록 테이프의 제조장치는 제1도에 도시한 바와 같이 공급릴(1)에 감긴 PET필림(2)을 안내로울러(3a) 및 장력조절용롤(4a), 안내로울러(3b)(3c)를 거쳐 냉각원통(5)에 밀착 주행시킨 후 안내로울러(3d)(3e) 및 장력조절용롤(4b), 안내로울러(3f)를 거쳐 회수릴(6)로 회수하고, 마그네시아도가니(8)에 Co-Ni 합금(9)를 넣은후 E/B 건(Gun)(10)으로 융해 및 증발시켜, HiN(High Incidetn Nucleation)에 의한 연속 증착 방식으로 높은 입사각으로 냉각원통(5)에 밀착 주행되는 PET 필름(2)에 Co-Ni 합금(9)을 증착시켜 자기기록 테이프를 제조하게 되어 있었다.In the conventional apparatus for manufacturing a metal thin film recording tape, the PET film 2 wound on the supply reel 1 as shown in FIG. 1 has a guide roller 3a, a tension adjusting roll 4a, and a guide roller 3b. After driving closely to the cooling cylinder (5) via (3c), and then to the recovery reel (6) through the guide roller (3d) (3e), the tension adjusting roll (4b), the guide roller (3f), the magnesia crucible ( 8) Co-Ni alloy (9) is put into the E / B Gun (10), and then melted and evaporated. A Co-Ni alloy 9 was deposited on a PET film 2 that was in close contact with each other to produce a magnetic recording tape.
제1도의 도면중 미설명 부호 7은 방착마스크이다.In FIG. 1 of FIG. 1, reference numeral 7 denotes a protective mask.
이와 같이 종래의 제조장치에 의해 제조된 금속박막형 자기기록 테이프는 자성층의 자기밀도가 높고, 자성층의 두께가 얇아 재생시 출력이 높으며, 단파장기록시 매우 유리하나, 금속박막형 강자성체인 금속 자체가 노출되어 내식성이 약하므로 녹화 후 보관중에 산화되어 출력이 감소되거나 녹화된 신호가 지워지는 결함이 있었다.As described above, the metal thin film magnetic recording tape manufactured by the conventional manufacturing apparatus has a high magnetic density of the magnetic layer, a thin magnetic layer and a high output upon reproducing, and is very advantageous in short wavelength oxy, but the metal itself, which is a metal thin ferromagnetic material, is exposed. Due to its low corrosion resistance, it was oxidized during storage after recording, resulting in a decrease in output or a deletion of recorded signals.
따라서, 자성층의 표면에 표면 보호층을 형성하여 자성체의 산화를 방지함과 아울러 주행성 및 헤드의 접촉성 등을 향상시키고는 있으나, 금속박막형 자기기록 테이프는 그 특성을 살리기 위하여 그 표면보호층의 두께를 300A°이상으로 할수 없어 자성체가 부분적으로 노출되므로 내식성을 완전히 향상시키지 못하고, 또한 표면보호층의 두께에 비례하여 재생시에 출력이 저하되는 결함이 있었다.Therefore, the surface protective layer is formed on the surface of the magnetic layer to prevent the oxidation of the magnetic body and to improve the running property and the contact property of the head. Since the magnetic material is partially exposed because the magnetic material is not more than 300A °, there is a defect that the corrosion resistance is not completely improved, and the output decreases during regeneration in proportion to the thickness of the surface protective layer.
본 고안은 이와 같은 종래의 결함을 감안하여, 자성층의 표면에 별도의 표면보호층을 형성하지 않고, 내식성을 향상시킬수 있는 금속박막형 자기기록 테이프의 제조장치를 안출한 것으로, 이를 첨부된 제1도의 도면에 의하여 상세히 설명하면 다음과 같다.SUMMARY OF THE INVENTION In view of such a conventional defect, the present invention provides a device for producing a metal thin film magnetic recording tape capable of improving corrosion resistance without forming a separate surface protection layer on the surface of a magnetic layer. Referring to the drawings in detail as follows.
제2도는 본 고안의 금속박막형 자기기록 테이프의 제조장치를 보인 개략도로서, 이에 도시한 바와 같이 상기 제1도의 마그네시아도가니(8)대신에 두개의 마그네시아도가니(8a)(8b)에 Co(9a) 및 Ni(9b)을 넣고, E/B 건(10)으로 그 Co(9a) 및 Ni(9b) 을 번갈아 스캐닝(scanning)하게 구성한 것이다.FIG. 2 is a schematic view showing an apparatus for manufacturing a metal thin magnetic recording tape of the present invention. As shown therein, two magnesia crucibles (8a) and (8b) instead of the magnesia crucible (8) of FIG. And Ni (9b), and the Co / 9a and Ni (9b) are alternately scanned by the E / B gun 10. FIG.
즉 초기에는 높은 입사각에서 HCP결정구조인 Co(9a)를 많이 증착시켜 마그네틱 언소트로픽 팩터 (Magnetic Anisotropic Factor)를 크게 함으로써 자성체의 자기특성을 좋게하고, 이후 낮은 입사각에서는 내식성이 강한 Ni(9b)을 많이 증착시켜 내식성을 향상시키게 제조한 것이다.In other words, Co (9a), which is HCP crystal structure, is deposited at high incidence angle to increase the magnetic anisotropic factor to improve the magnetic properties of the magnetic body. It is manufactured to improve the corrosion resistance by depositing a lot.
이와 같이 본 고안의 제조장치에 의하여 제조된 금속박막형 자기기록 테이프를 종래의 금속박막형 자지기록 테이프와 비교설명하면 다음과 같다.As described above, the metal thin film magnetic recording tape manufactured by the manufacturing apparatus of the present invention is compared with the conventional metal thin film magnetic recording tape.
실시예Example
Co(9a)와 Ni(9B)을 각기 다른 도가니(8a)(8b)에 넣고 그 도가니(8a)(8b)의 위치를 조금씩 변화시키면서 그 배합비를 조절하였다.Co (9a) and Ni (9B) were put in different crucibles 8a and 8b, and the compounding ratio was adjusted while changing the position of the crucibles 8a and 8b little by little.
실시예 1 : 표면에서의 Ni/Co 중량비 0.23Example 1 Ni / Co Weight Ratio 0.23 at Surface
실시예 2 : 표면에서의 Ni/Co 중량비 0.36Example 2 Ni / Co Weight Ratio 0.36 at Surface
실시예 3 : 표면에서의 Ni/Co 중량비 0.47Example 3 Ni / Co Weight Ratio 0.47 at Surface
실시예 4 : 표면에서의 Ni/Co 중량비 0.61Example 4 Ni / Co Weight Ratio 0.61 at Surface
실시예 5 : 표면에서의 Ni/Co 중량비 0.70Example 5 Ni / Co Weight Ratio 0.70 at the Surface
그리고, 비교예는 종래의 하나의 도가니(8)로 제조된 금속박막형 테이프를 사용하여 60C°및 95% RH의 분위기하에서 시간에 따라 잔류 자화량의 감소량을 측정하면서 내식성 실험을 하여 다음의 표와 같은 결과를 얻었다.In addition, the comparative example is subjected to the corrosion resistance test while measuring the amount of reduction of the residual magnetization with time in the atmosphere of 60C ° and 95% RH using a metal thin film tape made of a conventional crucible (8) The same result was obtained.
단위 : Mr/Mr0 Unit: Mr / Mr 0
여기서 Mr는 주어진 시간의 경과후 잔류자화량이고, Mr0는 초기의 잔류자화량이다.Where Mr is the residual magnetization after a given time and Mr 0 is the initial residual magnetization.
상기의 표에서 알수 있는 바와 같이 자성체의 Ni/Co 중량비가 0.3이상일 경우에 내식성이 점차 좋아지고, Ni/Co의 중량비가 0.5이상이면, 내식성이 매우 향상됨을 알수 있다.As can be seen from the above table, when the Ni / Co weight ratio of the magnetic body is 0.3 or more, the corrosion resistance is gradually improved, and when the Ni / Co weight ratio is 0.5 or more, it can be seen that the corrosion resistance is greatly improved.
이상에서 상세히 설명한 바와 같이 본 고안은 금속박막형 자기기록 테이프에 표면 보호층을 형성하지 않고 내식성을 향상시키게 되므로 재생시에 출력저하가 방지되는 효과가 있게 된다.As described in detail above, the present invention improves the corrosion resistance without forming a surface protective layer on the metal thin film type magnetic recording tape, thereby reducing the output during playback.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019850016913U KR900000247Y1 (en) | 1985-12-16 | 1985-12-16 | Magnetic record tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019850016913U KR900000247Y1 (en) | 1985-12-16 | 1985-12-16 | Magnetic record tape |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870011044U KR870011044U (en) | 1987-07-15 |
KR900000247Y1 true KR900000247Y1 (en) | 1990-01-30 |
Family
ID=19247266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019850016913U KR900000247Y1 (en) | 1985-12-16 | 1985-12-16 | Magnetic record tape |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900000247Y1 (en) |
-
1985
- 1985-12-16 KR KR2019850016913U patent/KR900000247Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR870011044U (en) | 1987-07-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH05342553A (en) | Magnetic recording medium and its production | |
KR900000247Y1 (en) | Magnetic record tape | |
KR940009728B1 (en) | Magnetic recording medium | |
JPH06150289A (en) | Magnetic recording medium and its manufacture | |
US4661421A (en) | Method for preparing a magnetic recording medium | |
KR940001015B1 (en) | Magnetic recording medium | |
JPH0481268B2 (en) | ||
JPH08129736A (en) | Magnetic recording medium | |
KR100212379B1 (en) | Magnetic recording medium | |
JP2508711B2 (en) | Perpendicular magnetic recording media | |
JPS6314310A (en) | Prependicular magnetic recording medium | |
JPH10134306A (en) | Tapelike magnetic recording medium and signal reproaching method using the same | |
JPH071535B2 (en) | Magnetic recording medium | |
JP2521532B2 (en) | Perpendicular magnetic recording medium, manufacturing method of the medium, and recording / reproducing method | |
JP2511997B2 (en) | Magnetic recording media | |
KR900000196B1 (en) | Magnetic record carrier and it's manufacturing method | |
KR960000822B1 (en) | A magnetic recording medium | |
JP2760906B2 (en) | Magnetic recording medium and method of manufacturing the same | |
JP3203943B2 (en) | Magnetic recording / reproducing device | |
JPH0666085B2 (en) | Method of manufacturing magnetic recording medium | |
JP2006048840A (en) | Magnetic recording medium, its manufacturing method and recording and reproducing method of magnetic recording medium | |
JPH10241138A (en) | Tape-like magnetic recording medium and method for reproduction of signal using the same | |
JPH061550B2 (en) | Method of manufacturing magnetic recording medium | |
JPS62232722A (en) | Magnetic recording medium | |
JPS63128175A (en) | Apparatus for producing perpendicular magnetic recording medium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 19981221 Year of fee payment: 10 |
|
LAPS | Lapse due to unpaid annual fee |