公开(公告)号：WO1994020242A1

公开(公告)日：1994-09-15

申请号：PCT/JP1993000288

申请日：1993-03-09

Applicant: CITIZEN WATCH CO., LTD. ,  KASAI, Takao ,  YOSHIKAWA, Kenichi ,  SAITO, Shigeru ,  HOSHI, Masami

Inventor： CITIZEN WATCH CO., LTD.

IPC: B22F03/02

CPC classification number: B22F3/225 ,  B22F1/0059 ,  B22F3/1021 ,  B22F3/22 ,  B22F2001/0066 ,  B22F2998/00 ,  C04B35/63408 ,  C04B35/63416 ,  C04B35/63432 ,  C04B35/638

Abstract: A process for manufacturing powder injection molded parts which comprises the steps of quickly raising the temperature of a molded body comprised of a binder composition, which contains at least two kinds of thermoplastic binder components having different evaporation starting temperatures not lower than the injection molding temperature, to a level higher than the evaporation starting temperature of a binder component of the lowest evaporation starting temperature so as to remove the binder component of the lowest evaporation starting temperature from the molded body while retaining this increased temperature, and thereafter raising the temperature of the molded body up to a level not lower than the evaporation starting temperature of a binder component having the highest evaporation starting temperature so as to remove all of the binder components. This process serves to eliminate the unstability of the shape of a final product which constitutes a problem with the conventional techniques, thus satisfying the dimensional accuracy, and to reduce the binder removing time.

Abstract translation: 一种制造粉末注射成型部件的方法，包括以下步骤：快速提高包含粘合剂组合物的成型体的温度，所述粘合剂组合物含有不低于注射成型温度的不同蒸发起始温度的至少两种热塑性粘合剂组分， 达到高于最低蒸发起始温度的粘合剂组分的蒸发起始温度的水平，以便在保持该升高的温度的同时从成型体除去最低蒸发起始温度的粘合剂组分，然后提高模制的温度 体积达到不低于具有最高蒸发起始温度的粘合剂组分的蒸发起始温度的水平，以便除去所有的粘合剂组分。 该方法用于消除构成常规技术问题的最终产品形状的不稳定性，从而满足尺寸精度，并减少粘合剂的去除时间。

公开(公告)号：WO1996030144A1

公开(公告)日：1996-10-03

申请号：PCT/SE1996000397

申请日：1996-03-27

Applicant: HÖGANÄS AB ,  PERSSON, Mats ,  ALAKÜLA, Mats ,  STÅHL, Jan-Eric ,  CEDELL, Tord

Inventor： HÖGANÄS AB

IPC: B22F03/02

CPC classification number: C22C32/0094 ,  H01F1/26

Abstract: The invention concerns a soft magnetic, anisotropic composite material essentially consisting of compacted, essentially flaky shaped, electrically insulated particles of essentially pure iron powder containing less than 0.01 % by weight of carbon, which particles are aligned in essentially parallel relationship and bonded together by an organic polymer resin. The new material is characterized by a green density of at least 7.4 g/cm . The invention also concerns a process for the preparation of the new material as well as the use of the material for devices operating at power frequencies.

Abstract translation: 本发明涉及一种软磁各向异性复合材料，其主要由压实的，基本上为片状的电绝缘的基本上纯的铁粉颗粒组成，该颗粒含有小于0.01重量％的碳，该颗粒基本上平行关系对准，并通过 有机聚合物树脂。 新材料的特征在于至少7.4g / cm 3的绿色密度。 本发明还涉及用于制备新材料的方法以及用于在功率频率下工作的装置的材料的使用。

公开(公告)号：WO1994025205A1

公开(公告)日：1994-11-10

申请号：PCT/EP1994000072

申请日：1994-01-12

Applicant: BASF AKTIENGESELLSCHAFT ,  TRUEBENBACH, Peter

Inventor： BASF AKTIENGESELLSCHAFT

IPC: B22F03/02

CPC classification number: B22F3/225 ,  B22F1/0059 ,  B22F3/1025 ,  B22F2001/0066 ,  B22F2998/00 ,  C04B35/63452 ,  C04B35/638

Abstract: The invention concerns the production of sintered articles by forming a mixture of a sinterable ceramic or metal powder plus polyoxymethylene or a copolymer containing predominant proportions of oxymethylene units as binder to give a green compact, removing the binder by treatment with a gaseous acid and sintering. In order to remove the binder, an acid is used which is a solid at room temperature and sublimes or melts and evaporates at higher temperatures.

公开(公告)号：WO1998025721A1

公开(公告)日：1998-06-18

申请号：PCT/US1997020890

申请日：1997-11-20

Applicant: MATERIALS INNOVATION, INC.

Inventor： MATERIALS INNOVATION, INC. ,  LASHMORE, David, S. ,  BEANE, Glenn, L. ,  DERESH, Lev

IPC: B22F03/02

CPC classification number: B22F3/225 ,  A61K6/0008 ,  A61K6/046 ,  B22F1/0088 ,  B22F1/025 ,  B22F3/22 ,  B22F2998/00 ,  C22C1/0466 ,  C22C1/10 ,  C22C47/00 ,  C22C47/14 ,  C23C30/00

Abstract: A process for consolidating powder, particulates, foils or sheets of metal coated composites, elemental metallic or metallic alloy or intermetallic compounds into net shapes having increased green strength at or near ambient temperature comprises treating the material with an aqueous activation solution. The aqueous activation solution is selected from dilute acids, reducing agents, molten salt electrolytes and mixtures thereof. Pressure is used to consolidate the treated powders, particulates, foils or sheets into a net shape at or near ambient temperature.

Abstract translation: 将金属涂层复合材料，元素金属或金属合金或金属间化合物的粉末，颗粒，箔或片材固结在具有或接近环境温度的附近具有增加的生坯强度的净形状的方法包括用水活化溶液处理该材料。 水活化溶液选自稀酸，还原剂，熔融盐电解质及其混合物。 压力用于在处于或接近环境温度的状态下将经处理的粉末，颗粒，箔或片固结成网状。

公开(公告)号：WO1996031305A1

公开(公告)日：1996-10-10

申请号：PCT/RU1995000157

申请日：1995-07-19

Applicant: ZHIRNOKLEEV, Igor Anatolievich

IPC: B22F03/02

CPC classification number: B01J3/08 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/066 ,  B22F3/08 ,  B22F3/087 ,  C22C26/00

Abstract: This invention pertains to the production of a compact superhard material from diamond and/or adamantine modifications of boron nitride, and provides compact superhard materials with high working properties. This method essentially comprises, before preliminary plastic deformation, adding, as a metallic linking agent to the superhard material powder, 3 - 90 vol.% of ultra-dispersive powder of a metal from the iron group with a particle size ranging between 100 and 1000 ANGSTROM . The final plastic deformation is obtained by a shock wave with a 1-25 GPa front amplitude and/or by plastic deformation at a temperature of 600 to 900 DEG C and with a deformation speed from 10 to 10 c .

Abstract translation: 本发明涉及从金刚石和/或金刚烷氮化硼改性制备紧凑超硬材料，并提供具有高加工性能的紧凑超硬材料。 该方法基本上包括在初步塑性变形之前，将作为金属连接剂的超硬材料粉末添加至粒度范围为100至1000的铁基金属的超分散粉末的3-90体积％ ANGSTROM。 最终的塑性变形是通过具有1-25GPa前振幅的冲击波和/或通过在600-900℃的温度下的塑性变形并且以10 -5至10 -1的变形速度获得的， ç<-1>。

公开(公告)号：WO1996019308A1

公开(公告)日：1996-06-27

申请号：PCT/SE1995001434

申请日：1995-11-30

Applicant: AGA AKTIEBOLAG ,  LARSSON, Owe

Inventor： AGA AKTIEBOLAG

IPC: B22F03/02

CPC classification number: B22F3/225 ,  B22F3/22 ,  B22F5/007 ,  B22F2998/00 ,  B22F2999/00 ,  B28B7/344 ,  B28B7/42 ,  B29C33/04 ,  B29C33/3814 ,  B22F3/1028 ,  B22F2202/03

Abstract: A process for production of a moulded ceramic and/or metallic body from a ductile material comprising one or more ceramic and/or metallic components, which material is fed into the pre-heated mould cavity (1) of a moulding tool. The moulding tool includes at least two mould parts (4, 5) of which at least one wholly or partly consists of a microporous material with communicating micropores. At least one mould cavity (1) comprising at least one mould surface (2, 3) exhibiting closed micropores is arranged in the microporous mould part (4, 5) or in a microporous section (6) thereof. The microporous mould part (4, 5) or the microporous section (6) thereof is pre-heated by supply of warm fluid, such as a heated gas. Said part (4, 5) or section (6) is after terminated moulding cooled by supply of cold fluid, such as a condensed gas. The invention includes in a further aspect a moulded body produced according to the process.

Abstract translation: 一种从包括一个或多个陶瓷和/或金属部件的延性材料制造模制陶瓷和/或金属体的方法，该材料被供给到模制工具的预热模腔（1）中。 模制工具包括至少两个模具部件（4,5），其中至少一个完全或部分地由具有连通的微孔的微孔材料组成。 至少一个包含至少一个呈现密闭微孔的模具表面（2,3）的模腔（1）布置在微孔模具部分（4,5）中或其微孔部分（6）中。 微孔模具部件（4,5）或其微孔部分（6）通过供应诸如加热气体之类的暖流体而预热。 在通过供应诸如冷凝气体之类的冷流体的端接模制冷却之后，所述部分（4,5）或部分（6）。 本发明还包括根据该方法生产的成型体。

公开(公告)号：WO1993017820A1

公开(公告)日：1993-09-16

申请号：PCT/SE1993000181

申请日：1993-03-02

Applicant: ABB CERAMA AB ,  DANIELSSON, Signar ,  KARLSSON, Erik ,  LARKER, Hans ,  MATTSSON, Bertil ,  NILSSON, Jan

Inventor： ABB CERAMA AB

IPC: B22F03/02

CPC classification number: B22F3/225 ,  B22F3/1291 ,  B22F3/15 ,  B22F5/10 ,  B22F2005/103 ,  B22F2998/00 ,  B28B1/24 ,  B28B7/342 ,  C04B35/584 ,  C04B35/634 ,  C04B35/6455 ,  C04B2235/3225 ,  C04B2235/3272 ,  C04B2235/3826 ,  C04B2235/3873 ,  C04B2235/6022 ,  C04B2235/80 ,  C04B2235/94 ,  B22F3/22

Abstract: A method of removing a core from an object formed by injection moulding starting from a compound comprising a metallic and/or ceramic powder material. The outer contour of the object is formed against an external tool arranged in an injection moulding tool and at least the inner contour of an inner cavity is formed against a core (11, 21) provided in the injection moulding tool. The core consists at least partly of a leachable core material which is removed, wholly or partially, from the injection-moulded object by directing at least one jet of a leaching liquid against the leachable core material by means of one or more spray nozzles. The leachable core material is dissolved and flushed away and said nozzle is inserted successively into the inner cavity as the leachable core material is being dissolved and flushed away. The core is then removed in its entirety and the inner cavity exposed before said object is sintered and consolidated into the desired density by means of methods which are accepted within the powdermetallurgical and ceramic industries.

Abstract translation: 从由包含金属和/或陶瓷粉末材料的化合物开始从注射成型形成的物体中去除芯的方法。 物体的外轮廓形成为抵靠设置在注射模制工具中的外部工具，并且至少内腔的内部轮廓形成为抵靠设置在注射成型工具中的芯部（11,21）。 芯部至少部分地由可浸出的芯材料组成，其通过一个或多个喷嘴将至少一个浸出液的射流引导到可浸出的芯材料上，全部或部分地从注射成型物体上除去。 可浸出的芯材料被溶解并冲洗掉，并且随着可浸出的芯材料被溶解并冲洗掉，所述喷嘴依次插入内腔中。 然后将核心整体去除，并且在所述物体被烧结之前暴露的内腔，并且通过在电冶金和陶瓷工业中被接受的方法将其固结成所需密度。

公开(公告)号：WO1990006199A1

公开(公告)日：1990-06-14

申请号：PCT/GB1989001437

申请日：1989-12-01

Applicant: MANGANESE BRONZE LIMITED ,  GREETHAM, Geoffrey

Inventor： MANGANESE BRONZE LIMITED

IPC: B22F03/02

CPC classification number: B30B11/22 ,  B22F3/172 ,  B30B11/00 ,  B30B11/022

Abstract: Continuous powder metallurgy compacts are produced from metal powder (4) placed in a tapered powder consolidation region (2) of a forming die (1). The die is made to undergo ultrasonic radial vibration about the consolidation region to effect radial compaction of the powder. The powder is progressively densified as it moves through the die, due to the tapered construction of the consolidation region, and emerges from the die at sufficient density to allow handling and further processing.

公开(公告)号：WO1998008638A1

公开(公告)日：1998-03-05

申请号：PCT/JP1997002895

申请日：1997-08-20

Applicant: NITTETSU MINING CO., LTD. ,  NAKATSUKA, Katsuto ,  ATARASHI, Takafumi

Inventor： NITTETSU MINING CO., LTD.

IPC: B22F03/02

CPC classification number: C04B41/009 ,  B22F1/02 ,  B22F3/004 ,  C04B41/4584 ,  C04B41/81 ,  C04B2111/00844 ,  H01F1/083 ,  H01F1/113 ,  H01F1/24 ,  H01F1/26 ,  H01F1/37 ,  H01G4/20 ,  Y10T428/25 ,  Y10T428/263 ,  Y10T428/2958 ,  Y10T428/2991 ,  Y10T428/2993 ,  C04B41/4535 ,  C04B41/4554 ,  C04B41/5027 ,  C04B41/5049 ,  C04B35/01 ,  C04B35/468

Abstract: A consolidated material of coated pulverized bodies, capable of setting the orientation of the particles of the pulverized bodies in a desired manner, or setting these particles in position spaced from one another by such a predetermined distance that permits the object properties to be given to the consolidated material, during the formation of a molded product which is obtained by fixing together pulverized bodies having certain properties. Pulverized bodies having films of a uniform thickness of 0.01-20 mu m on the surfaces thereof, or pulverized bodies having a plurality of layers of films of a uniform thickness of 0.01-5 mu m per layer wherein the kinds of at least adjacent films are different are fixed together at the films thereof or by a bonding agent, the characteristics of the consolidated material residing in that pulverized bodies having films thereon are fixed together, a method of manufacturing consolidated materials of coated pulverized bodies being also disclosed.

Abstract translation: 涂覆的粉碎体的固结材料能够以期望的方式设定粉碎体的颗粒的取向，或将这些颗粒彼此间隔开一定的距离，从而允许将物体特性赋予 在形成通过将具有某些性质的粉碎体固定在一起而获得的模塑制品形成时的固结材料。 在其表面上具有均匀厚度为0.01-20μm的膜的粉碎体或具有多层厚度为0.01-5μm/层的多层膜的粉碎体，其中至少相邻膜的种类为 不同的膜在其膜上或通过粘合剂固定在一起，固定在其中具有膜的粉碎体中的固结材料的特性被固定在一起，还公开了制造涂覆粉碎体的固结材料的方法。

公开(公告)号：WO1997014524A1

公开(公告)日：1997-04-24

申请号：PCT/JP1996003011

申请日：1996-10-17

Applicant: POLYPLASTICS CO., LTD.

Inventor： POLYPLASTICS CO., LTD. ,  KANKAWA, Yoshimitsu ,  IKEDA, Hiroshi ,  FUSAMOTO, Akira

IPC: B22F03/02

CPC classification number: C04B35/638 ,  B22F1/0059 ,  B22F2001/0066 ,  C04B35/63444

Abstract: A composite for manufacture of a sintered body enables the degressing process for a green molded body to be shorten, eliminates defects such as crack, blister, deformation and the like in the molded body in the degressing process and enables a sintered body to be manufactured which are high in dimensional accuracy, free of delamination and homogeneous. The composite for manufacture of a sintered body contains a sinterable powder and a binder consisting of polyacetal resin (A), a denatured polyolefine resin (B) and other binder components (C). Based on the total amount of the binder, the content of the polyacetal resin (A) is in the range of 5 to 60 volume %, the content of the denatured polyolefine resin (B) is contained in the range of 5 to 85 volume %, and the content of the sum of the polyacetal resin (A) and the denatured polyolefine resin (B) are in the range of 10 to 90 volume %.

Abstract translation: 用于制造烧结体的复合体能够缩短生坯成型体的脱胶处理，消除成型体中的脱模过程中的裂纹，起泡，变形等缺陷，能够制造烧结体， 尺寸精度高，无分层均匀。 用于制造烧结体的复合体包含可烧结粉末和由聚缩醛树脂（A），变性聚烯烃树脂（B）和其它粘合剂组分（C）组成的粘合剂。 基于粘合剂的总量，聚缩醛树脂（A）的含量在5〜60体积％的范围内，变性聚烯烃系树脂（B）的含量为5〜85体积％ ，聚缩醛树脂（A）和变性聚烯烃树脂（B）之和的含量在10〜90体积％的范围内。