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1. 发明授权

US4588441A Process for the preparation of sintered alloys for valve mechanism parts for internal combustion engines 失效
标题翻译：制备用于内燃机阀门机构部件的烧结合金的方法
公开(公告)号：US4588441A
公开(公告)日：1986-05-13
申请号：US575713
申请日：1984-01-31
申请人： Yutaka Ikenoue , Hiroyuki Endoh , Tadao Hayasaka
发明人： Yutaka Ikenoue , Hiroyuki Endoh , Tadao Hayasaka
IPC分类号： B22F1/00 , B22F3/10 , C22C33/02 , C22C38/00 , B22F3/16 , C22C38/12 , C22C38/16
CPC分类号： C22C33/0278 , C22C33/0207
摘要： A process for the preparation of an iron base sintered alloy well suited for use in valve mechanism members or parts of internal combustion engines, which has a porosity of 5 to 15% and throughout the iron matrix of which is dispersed an Fe-Mo intermetallic compound in the form of a phase harder than the said matrix, by using a powder mixture obtained by incorporating into finely divided iron powders having a particle size of not more than 30 microns the given amounts of copper powders, phosphorus-containing alloy powders, carbon powders and Fe-Mo alloy powders, or the given amounts of bronze powders and/or a mixture of copper powders and tin powders, phosphorus-containing alloy powders, carbon powders and Fe-Mo alloy powders.wherein the said iron powders are granulated alone or in combination with other powders to an apparent particle size of 30 to 200 microns, and the obtained powder mixture is formed into a green compact having a density ratio of 75 to 85%, which is in turn sintered at a temperature of 1030.degree.-1130.degree. C. in a reducing atmosphere.
摘要翻译：一种制备铁基烧结合金的方法，该铁基烧结合金非常适用于内燃机的阀机构部件或部件，其孔隙率为5％至15％，整个铁基体分散有Fe-Mo金属间化合物以比所述基质更硬的相的形式，通过使用通过掺入细粒度不超过30微米的细分铁粉所获得的粉末混合物，给定量的铜粉，含磷合金粉末，碳粉和Fe-Mo合金粉末，或给定量的青铜粉末和/或铜粉末和锡粉末，含磷合金粉末，碳粉末和Fe-Mo合金粉末的混合物。其中所述铁粉单独或与其它粉末组合制成表观粒径为30至200微米，所得粉末混合物形成密度比为75至85％的生坯，其依次为在还原气氛中在1030〜-1130℃的温度下烧结。

2. 发明授权

US4422875A Ferro-sintered alloys 失效
标题翻译：铁烧结合金
公开(公告)号：US4422875A
公开(公告)日：1983-12-27
申请号：US237906
申请日：1981-02-25
申请人： Tohru Nakata , Hiroyuki Endo , Masatoshi Harada , Tadao Hayasaka , Osamu Miyamoto
发明人： Tohru Nakata , Hiroyuki Endo , Masatoshi Harada , Tadao Hayasaka , Osamu Miyamoto
IPC分类号： C22C33/02 , B22F5/00
CPC分类号： C22C33/0278 , C22C33/0207 , Y10T29/49306 , Y10T428/1216 , Y10T428/12174
摘要： A ferro-sintered alloy having wear-resistance at elevated temperatures, comprises a perlite matrix having a copper content of from 0.2 to 1.5% by weight. 10 to 50% by weight of a phase A rich in heat and corrosion resistance is dispersed in the matrix with phase A including 9 to 20% Cr, 6 to 15% Ni, 1.5 to 9.5% Mo, 1.5 to 9.5% W, 0.7 to 4.5 Cu and an Fe remainder. In addition, 2 to 15% by weight of an additional component is dispersed in the matrix which is selected from one of a group of components which are wear-resistant. The group of components comprises:50.about.70% Mo-Fe Alloy (by weight)50.about.70% Cr-Fe Alloy (by weight)45.about.60% Fe-33.about.36% Mo-Si Alloy (by weight)45.about.60% Co-33.about.36% Mo-Si Alloy (by weight).
摘要翻译：在高温下具有耐磨性的铁烧结合金包含铜含量为0.2-1.5重量％的珍珠岩基质。 10〜50重量％的耐热耐腐蚀性相A分散在基体中，相A含有9〜20％的Cr，6〜15％的Ni，1.5〜9.5％的Mo，1.5〜9.5％的W，0.7 至4.5 Cu和Fe余量。另外，将2〜15重量％的附加成分分散在选自耐磨性的一组成分中的基质中。该组成分包括：50％70％Mo-Fe合金（重量比）50差异70％Cr-Fe合金（重量比）45差异60％Fe-33差异36％Mo-Si合金（重量比）45差异 60％Co-33差异36％Mo-Si合金（重量比）。

3. 发明授权

US4437890A Method of the preparation of high density sintered alloys based on iron and copper 失效
标题翻译：基于铁和铜的高密度烧结合金的制备方法
公开(公告)号：US4437890A
公开(公告)日：1984-03-20
申请号：US477365
申请日：1983-03-21
申请人： Tadao Hayasaka , Masahiro Suzuki , Shigeru Ozawa , Yoshiaki Takeya
发明人： Tadao Hayasaka , Masahiro Suzuki , Shigeru Ozawa , Yoshiaki Takeya
IPC分类号： B22F3/10 , B22F7/06 , C22C33/02 , C22C38/00 , B22F3/00
CPC分类号： C22C33/0278
摘要： A method of the preparation of an improved high-density sintered alloy composed mainly or iron and up to 50 wt. % of copper, in which boron is added in an amount of no less than 0.03% to suppress or limit the copper growth phenomenon during sintering. The alloys prepared by the present method undergo less dimensional changes during sintering and are thus of a very high density as compared with the conventional alloys of the same type.
摘要翻译：一种制备改进的高密度烧结合金的方法，该组合物主要由铁或铁组成，最多达50wt。铜的添加量不低于0.03％，以抑制或限制烧结过程中的铜生长现象。通过本方法制备的合金在烧结过程中经历较小的尺寸变化，因此与相同类型的常规合金相比具有非常高的密度。

4. 发明授权

US4552590A Ferro-sintered alloys 失效
标题翻译：铁烧结合金
公开(公告)号：US4552590A
公开(公告)日：1985-11-12
申请号：US522663
申请日：1983-08-12
申请人： Tohru Nakata , Hiroyuki Endo , Masatoshi Harada , Tadao Hayasaka , Osamu Miyamoto
发明人： Tohru Nakata , Hiroyuki Endo , Masatoshi Harada , Tadao Hayasaka , Osamu Miyamoto
IPC分类号： C22C33/02 , B22F5/00 , C22C38/00
CPC分类号： C22C33/0278 , C22C33/0207 , Y10T29/49306 , Y10T428/1216 , Y10T428/12174
摘要： A ferro-sintered alloy having wear resistance at elevated temperatures comprising a matrix in which, on a weight basis, 25-75% of an alloying base A of the following composition is irregularly dispersed with 75-25% of an alloying base B of the following composition, the matrix having dispersed therein 3-15% of at least one of the following hard phases C and D, and optionally being impregnated in its pores with lead:______________________________________ Base A Base B ______________________________________ Cr 2-4% Co 5.5-7.5% Mo 0.2-0.4% Ni 0.5-3% V 0.2-0.4% Mo 0.5-3% C 0.6-1.2% C 0.6%-1.2% Fe the remainder Fe the remainder Hard phase C: 45-60% Co - 33-36% Mo. - and remainder Si Hard phase D: 45-60% Fe - 33-36% Mo - and remainder Si. ______________________________________
摘要翻译：在高温下具有耐磨性的铁烧结合金，其包含基体，其中以重量计，25-75％的下列组成的合金基体A与75-25％的下述组成的合金基体B不规则地分散基体分散有3-15％的以下硬质相C和D中的至少一种，并且任选地用铅浸渍在其孔中：--Base A Base B-Cr 2-4％Co 5.5-7.5 ％-Mo 0.2-0.4％Ni 0.5-3％-V 0.2-0.4％Mo 0.5-3％-C 0.6-1.2％C 0.6％-1.2％Fe剩余部分Fe余量-Hard相C：45-60 ％Co-33-36％Mo-和余量Si-硬质相D：45-60％Fe-33-36％Mo-余量Si-

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