JPS5953603A - Active sintering method of metallic chromium - Google Patents
Active sintering method of metallic chromiumInfo
- Publication number
- JPS5953603A JPS5953603A JP57162122A JP16212282A JPS5953603A JP S5953603 A JPS5953603 A JP S5953603A JP 57162122 A JP57162122 A JP 57162122A JP 16212282 A JP16212282 A JP 16212282A JP S5953603 A JPS5953603 A JP S5953603A
- Authority
- JP
- Japan
- Prior art keywords
- metallic
- salt
- sintering
- powder
- water
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
Abstract
Description
【発明の詳細な説明】
本発明＆Ｊ金属クロノ・の活性９ｙ“１ｒ、粘状に関・
すＺ）ものである。更に詳ｔ、 ＜ ）Ｊｌ、金属クロ
ノ・微粉に水溶性パラジウＪ、塙水溶液を含浸させニ一
段焼結を行い、相対密度の高い金属り「１ノ、炉、粘体
を（ｌ ２）だめの活性焼結法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention & J Metal Chrono's activity 9y"1r, viscous...
Z). For further details, metal fine powder is impregnated with water-soluble Palladium J and Hanawa aqueous solution and sintered in two stages to form a metal with a high relative density. It concerns an activated sintering method.
金属クロＪ、鋳塊シ」、非當に脆いだめ、従来、板状や
棒状に成形加ニーｊ／）ことは全く行わＪしＣいなかっ
／ｒ−０捷た、金属クロムし１１、本来高湿強度、ｉ１
酸性。Metal chrome ingots are extremely brittle, and conventionally, they have not been formed into plate or rod shapes at all. High humidity strength, i1
Acidic.
耐食性などに優れたｔｙ゛￥性を有しており、寸だ、ニ
ッケル、コバルトなどのｉＩ熱金合金元素比べて安価で
あることから、而１ｉ＋、３ 、耐食合金の元素と１７
で、あるいケ」それらの基地成分と］−２１広い用途が
Ｆｒ、］’＼まれている。かかる状況から金属クロＩ、
粉末から強度の大きい板状、棒状などの成形体を？！？
２）ため＋７）焼結Ｙムの出現が強＜ ’ｉ７旨＊ｌ
じ＼れ”ＵいＡ・小発明者らＶ、［、叙−１−の状況に
無力、柔軟骨に富む金属クロノ、加−１′品” ｉｌ
２）ｉ−と４［１的）Ｌ −ｒＪ ９７２．７’１（１
１［究した結果、金※ｌｉりｔｌ 、ｌｚ微粉に少ｆｉ
１σ）パラソウ−２−塩を混イ）さぜ二段焼結すること
（・′（−１１）、相対密ｌｒＦの高い金Ｊｉｒｉり１
７ノ、焼結体がイＦ）らノ１ノ）という知見をイ（ｔて
＄発明所、完成１７六−ものでｔ）／）。４−ｈわ１′
ン、４・発明Ｉｉ金にり１１人微粉に１）溶＋’ｌパラ
ジウム１スΔ水６行ｕ含（’１％さ１１乾燥し７た後、
１０１１〜４ （ｌ ｎＨｐ＋（１０〜４０吋／−２）
で圧粉Ｌ２、とれ’ニアｎ ［＋へ・９００°（ユで一
次焼結し、更に１ ｒｌ ［１０〜１４ ｎ ＩＩｏ（
″、で二次焼結−することを’ｌ”ｌ徴と′才゛Ｚ）金
属クロノ・の活性焼結法を電供するものであ／）。It has excellent corrosion resistance, etc., and is cheaper than II hot metal alloy elements such as nickel and cobalt.
So, their base components and ]-21 have a wide range of uses. Due to this situation, metal black I,
From powder to molded objects such as strong plates and rods? ! ?
2) Because +7) The appearance of sintered Y is strong<'i7effect*l
The small inventors V, helpless in the situation described above, are metal chronographs rich in flexible bones, addition 1' products.
2) i- and 4 [1] L -rJ 972.7'1 (1
1 [As a result of research, there is a small amount of gold*light, lz fine powder,
1σ) Parasol-2-salt mixture) sintering in two stages (・'(-11), gold with high relative density lrF1)
7, the knowledge that the sintered body is 1) was completed by the Inventory Institute. 4-h1'
4. Invention Ii Gold paste 11 people 1) Dissolve + 'l palladium 1 s Δ water 6 rows u ('1%) 11 After drying 7,
1011~4 (l nHp+ (10~40 inches/-2)
Press powder L2, remove the powder at +900° (primary sintering at
It is intended to provide an active sintering method for metal chlorine, which is characterized by secondary sintering.
本発明に於−で−１金属クロムＪ・１．て（＋１、通常
４７．）金（惧り「１）、粉末が使用できるが、ｉｌＹ
、解金匡り「１ノ、粉末又＆１脱ガス金屈クロノ、粉末
がＵ「ま１．〈用いｒ〕れろ。ｃ−Ｊ’１ｒ））’、１
、＋ｌ’ｆ＋ 紳１（「ｆ 仙（７） ４． ＃’ｌ！
＋１４１ ｊＨｌ 素（７１含４４１７Ｊ カ／［・
ないからである。この粉末ｔ＼“ｉ ｌｌ’Ｆ １１．
１． ’＄’Ｊ、小な１１ど活性に畠カθｒまｌ−、い
が、子の活ｔ”ＣＩｌ’ｌ’ ／６びにト済性等の１”
’１点上す１１１’ｌ常（Ｌ ２ ｎ？ ／ ９ ｊ’
ｌ、 ｌ、 ｈ（４１，（ｌＪ 〔１，４□１・５ ｒ
ｒ？ ／ ９の１１′、表面積を有−す／、ものが用い
Ｃ１わム、この全ｈ＠クロノ、微粉に含江込）Ｊ、 Ｚ
＞水溶１’ｌ＝パラジウノ、用ノ」Ｌ、てシ（、硝酸パ
ランＴ゛７）１． （ｌ’ｆ、 （Ｖ？パラジウノ・工
水堪、用化パラジウム若り、 ＜ ＆Ｊこの工水均など
が挙げられる。これらのパラジウムｍのノド溶液添加＋
？ｔ ＆Ｊ、金ル［カフｒ’Ｊ ／、微粉に添加し、両
者に汎神［７た１県に泥状となる程す（に；＊１７ａ
ｑｉ甘−４〕）。バラシラノ、塩のｌ１ｌｉ ｎＪ ＋
１１０、金属クロノ、に苅し７で、金に１（バラシラノ
、４イＩ（算０５〜・２．５ ［１１“）チがｈｆ庄］
２い１、こねより少ｉＨ，（７戸ＪＪ、イ）Ｖ、１イ１
）Ｃ）れｚ）焼結体の相７Ｊ ’＋’！’？ Ｉｎ’
；＋５叫ｌ； ＩＱ 的小さく充分な効果を期待し１！
トぜ、これ」、り多ｉ）に【−１ても−そわ１゛Ｊ、１
−の動片を期待１．、イ！ ！ないからである。In the present invention, -1 metal chromium J.1. (+1, usually 47.) Gold (+1), powder can be used, but ilY
, Kaikin Matari ``1, Powder Mata & 1 Degassing Kinku Kurono, Powder is U ``Ma1.
, +l'f+ sen 1 (``f sen (7) 4. #'l!
+141 jHl element (71 included 4417J Ka/[・
That's because there isn't. This powdert\"i ll'F 11.
1. '$'J, small 11 etc. activation, Hatake Ka θrmal-, Iga, child's activation t"CIl'l' /6 and to finished sex etc. 1"
'1 point up 111'l always (L 2 n? / 9 j'
l, l, h(41, (lJ [1,4□1・5 r
r? / 11' of 9, has a surface area /, the thing is used C1, this whole h@chrono, fine powder contains) J, Z
>Water soluble 1'l=Paranium nitric acid T'7) 1. (l'f, (V? Palladium, Kosui-tan, practical palladium young, <&J this Kosui-Hyun, etc.). Addition of these palladium m throat solutions +
? t & J, gold [cuff r'J /, added to the fine powder, both panshin [7 and 1 prefectures become muddy (ni; *17a
qi sweet-4]). Balashirano, salt l1li nJ +
110, metal chrono, Nikarushi 7, gold 1 (Bara Shirano, 4 I (calculation 05~・2.5 [11") Chiga hf sho]
2-1, less than kone iH, (7 doors JJ, i) V, 1-1
) C) Rez) Phase 7J of sintered body '+'! '? In'
; +5 shout l; IQ 1, hoping for a small and sufficient effect!
Toze, this”, Rita i) to [-1 mo-sowa 1゛J, 1
- Expecting moving pieces 1. ,stomach! ! That's because there isn't.
金１１ベク１１ノ、微粉に水溶性パラジウムｊバ水溶液
４含浸させるにシ」、悄Ｊ’［ｌのブレンダー＆で、Ｌ
り混紳゛Ｊ））と−に、Ｌり行わわるブレンター−容器
内＋ｌｌ、１１１シの異わ１１金属の混入を避し）ノ）
た、めシラスブーツクなどによリコーデングしたもの存
用い７）ξ−ノーがｒｒｒｊ＋、い。Impregnate the fine powder with 4 ml of water-soluble palladium aqueous solution in a blender with
The mixture is mixed with J)) and - in the blender container +ll, 111 to avoid contamination of metals).
7) ξ-no is rrrj+, yes.
次いで、金属り「ｌ Ｊ’％ ｎ：’ｌ粉／７）水１キ
ｉ件パンジソノ、］甚。Next, add 1 kg of metal powder/7) water.
水溶液の含浸物を８ ｆ、ｌ〜９ ｆｌ ’（：て゛加
−゛″（り１ハ・Ｙ町【５、圧粉す１′、−結エイ゛？
に供さ７１／、。Add the impregnated material with the aqueous solution to 8 f, l~9 fl'
Offered to 71/.
−ｌ ’、 ｊｊｌ、：乾ｔ・Ｖ’ １’、ｋ ＆ １
．、圧ｆつ）成形用１ ＜、：ｊ５’ｉ％、！Ｉｌｌ
ｌ 、 ’７’ し、、ｘ −ｔｌ）か、才・／）いヲ
１■ｔ−ルなど匠、Ｌ ｂ ４１Ｊ、状依′１［、延）
＼わ／、０成型１１力１１１ｎ ｎ−４１１ＩＩ川）ｎ
（Ｉ旧−４ｎｎｌｒ４＋ ／門２）で行わわイ、。-l', jjl,: dry t・V'1', k & 1
．． , pressure f) for molding 1 <,:j5'i%,! Ill
l , '7' し、、x -tl）か、さ、／）Iwo1■t-る等工、L b 41J、 Status い'1[、弄）
\wa/, 0 molding 11 force 111n n-411II river)n
(I old-4nnlr4+/gate 2).
−−一次幻゛１．結Ｕ ｌｒ【二）Ｊ、７ ｒｌ
１１ 〜９ １１ １１ ”に、 ６ｒ、ｌ−７〈ｔ、
１７５【１−・８５〔１℃である、この焼結時間か、１
的１時間で左１分°Ｃメ・）る。→、た１、−’Ｊ！、
１７ｉＫ１’ｉＢ １ ｎ ｎ ｎ 。--Primary illusion 1. Yui U lr [2) J, 7 rl
11 to 9 11 11'', 6r, l-7〈t,
175[1-85[1℃, this sintering time, 1
1 minute to the left in 1 hour. →, Ta1, -'J! ,
17iK1'iB 1 n n n .
１４００°（：、好オ１２＜シＪ、 １ ［１５０へ
−１、’＋ ［１ｎｏ（′、で約１時間行う。これＣつ
の両’）”ｌ、Ｉ＋結］、稈ｔ［、アルゴン。1400° (:, good o12<shiJ, 1 [to 150-1,'+ [1no(', do this for about 1 hour. This is both C')"l, I + connection], culm t[, argon .
・＼ソウノ、などの不活付雰囲気中、又１１−水素Ｗ囲
気中て′、型切、炉など存用い１行わＪ＋ｐ）。こねに
より酸化物の生成が抑制される。・In an inert atmosphere such as \Souno, or in a 11-hydrogen W atmosphere, mold cutting, furnace, etc. are used (J+p). Kneading suppresses the formation of oxides.
か＜Ｌ−ｒ、本発明により＋１’相ン１密１１’ｌ’
９ ｎ嘴１ｊｌの金属り「１ム焼結ｆ＋が１！ＩらＪす
る。or<L-r, according to the present invention +1'phase-1density11'l'
9 n beak 1jl metal ``1mu sintered f+ is 1!I et al J.
４； ＴＭ Ｑｌ ｌ ｔハ焼粘状を採用Ｊノ１げ４）
１伏、 ４’Ｓ１１：なノ゛σ〉強値Ｊな成）１そ加工
品がイｌ Ｃ）ｈ、金に１眞り１１ノ・（７）本来の’
Ｖｊ （’ｌである高？席強度、耐酸＋’１．１ｌｉ１
食ｔ１に優れブンー加土品がイ（すられるものてあメ、
。4; TM Ql t has a hardened viscous form J No. 1 ge 4)
1 fall, 4'S11: な゛σ〉strong value J な生) 1 The processed product is Il C) h, 1 true to gold 11 no. (7) Original'
Vj ('l high seat strength, acid resistance +'1.1li1
Excellent food T1, Boon Kado products are good (Susuremono Teame,
.
以下、本発明を′＝Ｐ：施例により更にＪ（体重にＨ９
，明するが、俸発明ＣＩこれに」、り何ら限定式れＺう
もので１１ゾｒい。Hereinafter, the present invention will be described as ′=P: J (body weight and H9
However, I would like to clarify that there is no such thing as a limited expression for the invention CI.
１］ζＪ〆ＩＩイに・１
Ｊｂ表面ｔｌ’ｔ１． ｎ 、（７ｇ ｙ、有−１２、
’ｆｌｉ、Ｉ’ｌ’ｒ金［・＋ｉミクロ、粉１０ （１
重附部に対［ノテ、（ｉｆ’ｌ ｒｉ”：ｌパ’ニア
ン’） Ｊ、２１７重ｂ１部（金Ｐ’ｉパラジウム１ぐ
Ｌｉ１１１重１・１部）る水２ｒ１部に４）角了１、こ
わ、Ａ混合［２、画？、を、１．〈渭、糸１ｊ Ｌ、９
０℃で乾燥した。次いでξれを圧粉用金パリに入れ油圧
式シラスによ的２［］ Ｉｆ Ｎ４■）ｐの圧力でＩＦ
第５）シだ。このＩ［、粉ＩｉＶ形（＋： ’に′Ｉｌ
’ｉ’、気炉イ【用いて紳水素π囲気下で８００℃に１
時加−：〜１−２、−次焼結を行い、更に１１５０℃で
１時間二゛次ｉ”’１結に行つカニ１１、Ｉｌｌ／、蔚
寺諷紳収縮率ケＩ、 １１．３チ、イ；Ｉられ７′７−
焼１結併の相対密ｍ′は９０チて、柔軟性に爪むもので
才・Ｚ）ことが明らかとなっプロ
比申立例１
硝酸バラシラノ、用水溶液を含浸Δ、）」−ず、５に４
１イＵ例１と同様に実施１−２だ結果、線収縮率は５．
５係、書Ｃっれた焼結体の相幻密庶は７６メでオ）す、
実施例１ｒノ）す’：’、結体と粘体つし２−テ６、柔
軟（’目ｔ ’！５ ／１ ？ 、 ） 、／、ｉ １
ｌｌｌ （、か）な−）／こ。1]ζJ〆IIii・1 Jb surface tl't1. n, (7g y, y-12,
'fli, I'l'r gold [・+i micro, powder 10 (1
For the heavy division [note, (if'l ri":l pa'nia
N') J, 1 part of 217 weight b (gold P'i 1 palladium, 1.1 part of Li 111 weight) to 2r 1 part of water 4) Corner 1, stiff, A mixture [2, picture? , 1. <渭、Ito 1j L、9
It was dried at 0°C. Next, put the ξ into a powder compaction plate and press it with a hydraulic shirasu at a pressure of 2[] If N4■) p.
5th) It's shi. This I[, powder IiV form (+: 'to'Il
'i', air furnace I
Temperature: ~1-2, -Next sintering, and then second I'''1 sintering at 1150°C for 1 hour. 3chi, i;Ire7'7-
It is clear that the relative density m' of sintering is 90 cm, which is difficult for flexibility. 4
1-U Example 1-2 was carried out in the same manner as in Example 1. As a result, the linear shrinkage rate was 5.
Section 5, the sintered body with the letter C written on it is 76 meters.
Example 1r)su':', Concretion and viscous body 2-te6, Softness ('me t'!5/1?, ), /, i 1
lll (,ka)na-)/ko.
” ／７ｉｉｉ １列２〜・ １２
実ｊｉ’ｉｆｌ １ ｐｔ ｉ′１／（じテ、 Ｆｐ、
１ （ｙ、＋に承・４条イ′Ｉσ）Ｉに、金１・ｊ（
りｎ ｊｂ ＷＷ粉（？水ｎ１件バラジウＩ、」；１Ｓ
水溶静、４含浸さ−１、−ｑ旧１“１１、結及び工法焼
結を行−）ｔ（。ｉｆｉ＋ｉ ’ｌηｊ１；率及び得ら
）Ｂ’ｉ−焼結体の相”ｔｌ ’ｆｌＴ ｌｉ−’ａｔ
ｉ’％ １壱に７ｉ−Ｊ、。/7iii 1 row 2~・12 ji'ifl 1 pt i'1/(jite, Fp,
1 (y, + to jo・4 article a′Iσ) I, gold 1・j (
Rin jb WW powder (?Water n1 item barajiu I,'';1S
water solution, 4 impregnated -1, -q old 1 "11, perform sintering and method sintering -)t(.ifi+i'lηj1; rate and obtained)B'i-phase of sintered body"tl 'flT li-'at
i'% 1 to 7i-J.
第 １９゛１
比較例２〜・４
第２表に示す条件の下に、金ｌＩｓり１−ｔ 、／、微
粉末Ｗ１水浴Ｐ１バラジウノ、水溶液を・含７．．％
７Ｎ ＋４ ・Ｊ’、−’′／ｊｆｉ 例２゜７及び１
１に準じて、−（ｐ：焼結及び二次包「、結に１ｌ−）
ｆｒ。、ｖ’＋’ 収縮率及ｒ）’ （！ｔ Ｉ’）
Ｉ＋ ／： ・ｈ７、結体ノ相’？ｌ Ｖｉ′！度１＜
９１１２衣に示−す。No. 19゛1 Comparative Examples 2 to 4 Under the conditions shown in Table 2, gold lIs 1-t, fine powder W1, water bath P1, and aqueous solution were added.7. ．． %
7N +4 ・J', -''/jfi Example 2゜7 and 1
According to 1, - (p: sintered and secondary packaging ", 1l -)
fr. , v'+' shrinkage rate and r)' (!t I')
I+ /: ・h7, cohesion phase'? l Vi′! degree 1<
Shown on 9112 clothes.
ｇＦ、 ２ ％’４ 特許出願人 東洋曹達１’青−株式会社ほか１名 １９gF, 2%’4 Patent applicant: Toyo Soda 1'Ao - Co., Ltd. and 1 other person 19
Claims (2)
ノ、塩水溶液を含浸さヒ、乾ｔ′１・し７／・・後、ｊ
ＩＩ Ｅ＋−４Ｅｌ’ ｔｌ氷４１６（１０〜４０に
９／宵−）で月１５Ｎ、、こＪ）イ１−７００〜９０１
１℃で一次＄、ｌ’Ｍシ目７、史（クニ１０ ｎ ＋１
〜１４００°（じで二次焼結′１′Ｚ・ξとを′ｌｌ：
？’、１ノーする金属クロムの活性焼結法。(1) Kanai + 7, fine powder impregnated with water-soluble para,; Uno, salt aqueous solution, dried t'1, 7/..., then j
II E+-4El' tl ice 416 (10-40 9/evening-) a month 15N,, Ko J) I1-700-901
At 1℃, primary $, l'M seam 7, history (kuni 10 n +1
~1400° (secondary sintering '1'Z and ξ'll:
? 1. Active sintering method for metal chromium.
ジウム、硫酸パラジウノ、工水基又シロ名に化バノ。！
ラム若し１、Ｌコｃ７）工水Ｌ’ｓ、 ｆあル４”Ｆ
ｉｔ’ Ｒｉ’ｌ求ｃ／＋ （Ｆａｔ 囲ｒ■ｓ ａｔ
ＪＦｉに記載の金属り［１）、活性焼に１’ｒ ？、
＋８０（１）金属り「１ムに月１．で、金用パラジウノ
、換９ＩＴ、 ５〜２５重ｒ７４チの水溶１′１パラジ
ウム川水溶液を含浸さ４Ｊ−る特許請求の範囲第（１）
項又ｖ１第（９川百Ｇ・（−記４．砲の全Ｆ１１り［１
）・の活性）直結法２、（４） ｆｌ、 ２ ｎｌ／
り」＋１、上の比！、′−，面積を有する金属りｔ１ノ
・微粉をＩｌｌいＺ）’Ｉ−′ｒｎ’ｆ’ Ｉｉ７求の
範囲ｆ（’、 ｆｌｌ珀からｆＰ、（３） にｑのい１
れかの項姓−泥載の全１ｉヘク！１人の活性焼結法。、(2) Is jsH nitrate 11' in water-soluble barajiuno? Pandium, palladium sulfate, chemical water base, also known as kabano. !
Ram 1, Lko c7) Industrial water L's, 4"F
it'Ri'l search c/+ (Fat enclosure r■s at
The metal paste described in JFi [1], 1'r for activated firing? ,
+80 (1) Metallic material impregnated with 4J of aqueous 1'1 palladium solution containing 5 to 25 weight r74 of palladium for gold at 1 month per month.Claim No. (1)
Item v1 No. 9 River 100G (-4. All F11 guns [1
)・Activity) Direct connection method 2, (4) fl, 2 nl/
ri”+1, the above ratio! , '-, the area of metal t1 is IlliZ)'I-'rn'f'
Reka's surname - All 1i heku of mud! Activated sintering method for one person. ,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162122A JPS5953603A (en) | 1982-09-20 | 1982-09-20 | Active sintering method of metallic chromium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162122A JPS5953603A (en) | 1982-09-20 | 1982-09-20 | Active sintering method of metallic chromium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5953603A true JPS5953603A (en) | 1984-03-28 |
| JPS6330978B2 JPS6330978B2 (en) | 1988-06-21 |
Family
ID=15748452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57162122A Granted JPS5953603A (en) | 1982-09-20 | 1982-09-20 | Active sintering method of metallic chromium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5953603A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63164683A (en) * | 1986-12-26 | 1988-07-08 | Hitachi Ltd | Long time operation magnetic recording and reproducing device |
| JPS63280583A (en) * | 1987-05-13 | 1988-11-17 | Hitachi Ltd | Intermittent magnetic recording and reproducing device |
| JPS63280584A (en) * | 1987-05-13 | 1988-11-17 | Hitachi Ltd | Time lapse system magnetic recorder |
| JPS63283286A (en) * | 1987-05-15 | 1988-11-21 | Hitachi Ltd | Time lapse type magnetic recording device |
| JPS63283285A (en) * | 1987-05-15 | 1988-11-21 | Hitachi Ltd | Intermittent magnetic sound and picture recording device |
| JPS6477285A (en) * | 1987-09-18 | 1989-03-23 | Hitachi Ltd | Time lapse system magnetic playback device |
-
1982
- 1982-09-20 JP JP57162122A patent/JPS5953603A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63164683A (en) * | 1986-12-26 | 1988-07-08 | Hitachi Ltd | Long time operation magnetic recording and reproducing device |
| JPS63280583A (en) * | 1987-05-13 | 1988-11-17 | Hitachi Ltd | Intermittent magnetic recording and reproducing device |
| JPS63280584A (en) * | 1987-05-13 | 1988-11-17 | Hitachi Ltd | Time lapse system magnetic recorder |
| JPS63283286A (en) * | 1987-05-15 | 1988-11-21 | Hitachi Ltd | Time lapse type magnetic recording device |
| JPS63283285A (en) * | 1987-05-15 | 1988-11-21 | Hitachi Ltd | Intermittent magnetic sound and picture recording device |
| JPS6477285A (en) * | 1987-09-18 | 1989-03-23 | Hitachi Ltd | Time lapse system magnetic playback device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6330978B2 (en) | 1988-06-21 |
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