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1. 发明专利

JPS6229481B2 失效
公开(公告)号：JPS6229481B2
公开(公告)日：1987-06-26
申请号：JP19363382
申请日：1982-11-04
申请人： MITSUBISHI METAL CORP
发明人： NISHINO YOSHIO , NODA FUMIO , SATO ROKURO
IPC分类号： B22F1/00 , B22F9/08

2. 发明专利

JPS6280204A PRODUCTION OF COMPOSITE METALLIC POWDER 失效
公开(公告)号：JPS6280204A
公开(公告)日：1987-04-13
申请号：JP22097085
申请日：1985-10-03
申请人： MITSUBISHI METAL CORP
发明人： KOMOTO HIROAKI , NISHINO YOSHIO
IPC分类号： B22F9/10
摘要： PURPOSE:To easily produce composite metallic powder in which dispersion particles are uniformly distributed by charging the granular or short fiber-like dispersion particles having the m.p. higher than the m.p. of a molten metal to the molten metal and splitting and spraying the melt mixture composed thereof to liquid drops by centrifugal force. CONSTITUTION:A rotary electrode 3 made of an Ni alloy, etc., is erected on an electrode mounting base 8 which is horizontally rotated by a high-speed revolving motor 4 to constitute a centrifugal sprayer consisting of a rotary electrode device. Said electrode is rotated at a speed of about 16,000 revolutions/ min and an arc 1 is irradiated from above the rotary electrode 3 to form a molten metal pool 2 at the top end thereof. The dispersion particles 6 in the granular or short fiber-like state having the high m.p. are thrown to the molten metal just prior to splitting to the liquid drops in the molten metal pool 2 from a nozzle 5 disposed in the upper diagonal position. Such melt mixture is split by the centrifugal force. The composite metallic powder in which the above- mentioned dispersion particles are uniformly distributed is thus easily and quickly formed at a low cost.

3. 发明专利

JPS613859B2 JPS613859B2 - 失效
公开(公告)号：JPS613859B2
公开(公告)日：1986-02-05
申请号：JP12396779
申请日：1979-09-28
申请人： Mitsubishi Metal Corp
发明人： NISHINO YOSHIO , KONO TOORU , SAWAGUCHI HIROSHI
IPC分类号： F16C33/12 , C22C1/04 , C22C1/05 , C22C9/00 , C22C9/02
CPC分类号： F16C33/12 , F16C2204/12

4. 发明专利

JPS6032708B2 失效
公开(公告)号：JPS6032708B2
公开(公告)日：1985-07-30
申请号：JP5368979
申请日：1979-05-01
申请人： MITSUBISHI METAL CORP
发明人： NISHINO YOSHIO , KONO TOORU , KIRIGATANI SEIICHI
IPC分类号： C22C33/02 , C22C38/00 , C22C38/04 , C22C38/08 , C22C38/16

5. 发明专利

JPS59229403A PRODUCTION OF SINTERED METALLIC MEMBER AND BINDER FOR INJECTION MOLDING 失效
公开(公告)号：JPS59229403A
公开(公告)日：1984-12-22
申请号：JP10231083
申请日：1983-06-08
申请人： MITSUBISHI METAL CORP
发明人： NISHINO YOSHIO , UEDA KOUSHIROU , SAITOU KATSUYOSHI
IPC分类号： B22F3/02 , B22F3/10 , C04B35/632
摘要： PURPOSE:To produce a sintered metallic member having an intricate shape, etc. with good mass productivity by compounding an adequate amt. of a binder to metallic powder having an adequate grain size distribution and subjecting the powder to injection molding, heating and binder-removing under specific conditions then sintering the molding. CONSTITUTION:A compounded mixture contg. 6-15wt% binder and consisting of the balance raw material powder consisting essentially of metallic powder having 10-50mum average grain size is injection-molded under the conditions of 150-1,000kg/cm injection pressure and 120-160 deg.C molding temp. then the injection-molding is heated and is removed of the binder under the conditions of 15- 250 deg.C heating rate, 450-600 deg.C heating temp. and 0-5hr time for maintaining heating in a reducing atmosphere and in succession the molding is sintered under ordinary conditions, by which a sintered metallic member is obtd. A binder consisting of 30-50wt% ethylene/vinyl acetate copolymer or low-density PE, 19- 32% methacrylate copolymer, 7-13% one kind of dibutyl phthalate, diethyl phthalate and stearic acid, the balance paraffin wax is suitable as the above- mentioned binder.

6. 发明专利

JPS58144450A PREPARATION OF HIGH STRENGTH AND HIGH TOUGHNESS SINTERED MATERIAL HAVING CAST IRON STRUCTURE 失效
公开(公告)号：JPS58144450A
公开(公告)日：1983-08-27
申请号：JP2773482
申请日：1982-02-23
申请人： MITSUBISHI METAL CORP
发明人： NISHINO YOSHIO , KIRIGATANI SEIICHI , KOUNO TOORU
IPC分类号： B22F3/10 , C22C33/02 , C22C37/00 , C22C37/10 , C22C38/00
摘要： PURPOSE:To enable the preparation of a high strength and high toughness sintered material having a cast iron structure , by a powder metallurgical method wherein a specific amount of an Fe-Si powder and graphite powder are uniformly mixed in an iron powder and a resulting mixture is molded into a pressed powder body to be sintered in a reductive atmosphere. CONSTITUTION:To an iron powder usually used as the stock material for powder metallurgy, an Fe-Si powder with Si content of 15-75% and an average particle size of 1-10mum is added in an amount of 0.8-2.5% on the basis of Si content and, at the same time, a graphite powder with an average particle size of 20mum or less is added in an amount of 1-2% to carry out sufficient mixing. The resulting mixed powder is pressurized and molded in a mold under pressure of 4-6ton/cm and the molded body is heated and sintered at 1,050-1,180 deg.C in a reductive atmosphere comprising, for example, an NH3 decomposition gas. By this method, a high strength and high toughness sintered material having a structure consisting of free graphite, a ferrite phase and a perlite phase, excellent in anti-wear property, cutting property and vibration absorbability and having the same characteristics as usual cast iron is obtained.

7. 发明专利

JPS57123955A Free graphite dispersion type sintered sliding iron material and its manufacture 失效
标题翻译：免费石墨分散型烧结铁材料及其制造
公开(公告)号：JPS57123955A
公开(公告)日：1982-08-02
申请号：JP1004981
申请日：1981-01-26
申请人： Mitsubishi Metal Corp
发明人： NISHINO YOSHIO , KOUNO TOORU , KIRIGATANI SEIICHI
IPC分类号： B22F1/00 , B22F1/02 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/02
摘要： PURPOSE: To manufacture a sliding material with superior lubricity and wear resistance by blending a specified percentage each of carbon powder, powder having an effect of inhibiting the diffusion of carbon, and Fe powder, uniformly coating the surface of the carbon powder with the powder having the inhibiting effect, and carrying out molding and sintering.
CONSTITUTION: A composition consisting of 1W4wt% carbon powder having 20W 350μm average particle size, 0.2W4wt% of one or ≥2 kinds of powders having 1W15μm average particle size and an effect of inhibiting the diffusion of carbon selected from Si powder, Sn powder, P powder and alloy powder contg. ≥15wt% Si, Sn and P, and the balance Fe powder and/or Fe alloy powder having 40W 150μm average particle size is prepared, and the composition is mixed to uniformly coat the surface of the carbon powder with the powder having the inhibiting effect. Press molding and sintering are then carried out by an ordinary powder metallurgical method.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过混合规定百分比的碳粉，具有抑制碳扩散作用的粉末和Fe粉末来制造具有优异的润滑性和耐磨性的滑动材料，用粉末均匀地涂覆碳粉的表面，抑制作用，并进行成型和烧结。构成：由具有20-350μm平均粒度的1-4重量％碳粉末，0.2-4重量％的平均粒径为1-15μm的一种或> = 2种粉末组成的组合物和抑制所选择的碳扩散的效果由Si粉，Sn粉，P粉及合金粉末组成。 > = 15重量％的Si，Sn和P，并且制备平均粒径为40-150μm的Fe粉末和/或Fe合金粉末，并将组合物混合以均匀地涂覆碳粉末的表面，抑制作用。然后通过普通的粉末冶金方法进行压制成型和烧结。

8. 发明专利

JPS5558350A SINTERED HIGH SPEED STEEL 失效
公开(公告)号：JPS5558350A
公开(公告)日：1980-05-01
申请号：JP13100178
申请日：1978-10-26
申请人： MITSUBISHI METAL CORP
发明人： KITAMURA SEIJI , NISHINO YOSHIO , SAITOU YUUICHI , IIJIMA MASAYUKI
IPC分类号： C22C33/02 , C22C38/00 , C22C38/02 , C22C38/24
摘要： PURPOSE:To provide the title steel improving cutting and tool characteristics by uniformly dispersing a specified amt. of one or more out of Ti carbide, Ti nitride, etc. in high speed steel of a specified compsn. of Cr, V, C, W, Mo, etc. CONSTITUTION:1-10% of one or more out of Ti carbide, Ti nitride and Ti carbonitride is uniformly dispersed in high speed steel consisting of Cr 37.5-45%, V 0.8-5.5%, C 0.2-1.7%, W 1.5-22%, or Mo 0.5-8%, and the balance Fe or of Cr 37.5-45%, V 0.8-5.5%, C 0.2-1.7%, W 1.5-2.2%, Co 4.2% or Mo 0.5- 8%, and the balance Fe. This fine powder is heat sintered under suitable conditions, whereby the cutting and tool characteristics of the resulting sintered high speed steel can be improved furthermore without requiring a complex process and expensive equipment unlike a conventional method.

9. 发明专利

JPS5458606A PREPARATION OF MOLD FOR MOLDING GLASS 失效
公开(公告)号：JPS5458606A
公开(公告)日：1979-05-11
申请号：JP12513877
申请日：1977-10-20
申请人： MITSUBISHI METAL CORP
发明人： NISHINO YOSHIO , MASUI MITSUYOSHI
IPC分类号： B22F3/14 , B22F3/15 , B22F5/00 , C03B9/48 , C03B11/06 , C03B11/08 , C03B11/10
摘要： PURPOSE:To obtain the effective mold for molding glass at low cost, by filling the powder of raw material of the prescribed composition in a metal capsule of desired shape, after that, evacuating, then press molding under hot hydrostatic pressure and sintering the above powder of raw material. CONSTITUTION:The metal capsule 6 having the shape of inner surface approximating to the shape of outer surface of the final mold (e.g. the mold 1 for molding the panel for Braun tube of television), is made of mild steel sheet. Through the slender pipe 5 of this capsule 6, for example, the powder of the alloy of Ni base is filled and, after having evacuated through the slender pipe 5, the slender pipe 5 is sealed. This capsule 6 is molded by press-working under hot hydrostatic pressure and then is sintered. Then, by removing the mild steel capsule of outer shell by pickling and by finish working the mold, the mold 1 having a very high precision of dimensions is obtained. This mold 1 has a fine crystal grain size which does not generate the printed pattern on the surface of glass. Besides, in this mold, the inclusions at the grain boundary are very little, so that the surface of the glass product is not contaminated.

10. 发明专利

JPS5414311A PREPARATION OF SINTERED PRODUCT HAVING COMPLICATED SHAPE 失效
公开(公告)号：JPS5414311A
公开(公告)日：1979-02-02
申请号：JP7946577
申请日：1977-07-05
申请人： MITSUBISHI METAL CORP
发明人： DOI HIDEKAZU , NISHINO YOSHIO , YOSHIDA KAZUO
IPC分类号： B22F3/10 , B22C9/04 , B22F3/14 , B22F3/15 , C04B35/64 , C04B35/645
摘要： PURPOSE:To prepare the sintered product of complicated shape with the raw material of which the molding is difficult, by forming the glass shell around the model made of a vanishing material, filling the powder of the raw material to be sintered into the above shell after the vanishing material has been melted out and then sintering the raw material.

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