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1. 发明专利

JPS62202058A IRON-BASE SINTERED ALLOY FOR VALVE SEAT 失效
公开(公告)号：JPS62202058A
公开(公告)日：1987-09-05
申请号：JP4461686
申请日：1986-02-28
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KADOTA YUKIO , MANABE AKIRA , MORIMOTO TOSHIO , OMURA NAOMI
IPC分类号： C22C33/02 , C22C38/00 , C22C38/60
摘要： PURPOSE:To obtain an iron-base sintered alloy for a valve seat having satisfactory resistance to heat, wear and corrosion at high temp. by mixing powders of C, Co, ferromolybdenum, Ni, ferrotungsten and stock iron, compacting and sintering the mixture and filling lead as an infiltrator into the pores in the resulting porous sintered base material. CONSTITUTION:A powdery mixture consisting of, by weight, 0.1-1.5% C powder, 3-15% Co powder, 3-15% ferromolybdenum powder, 3-15% Ni powder, 0.5-2% ferrotungsten powder and the balance stock iron powder is compacted and sintered at about 1,150 deg.C in decomposed gaseous NH3. The resulting porous sintered base material and a lead ingot are heated at about 1,050 deg.C in an atmosphere of decomposed gaseous NH3. Lead is filled into the pores in the sintered base material and the desired iron-base sintered alloy for a valve seat is obtd.

2. 发明专利

JPS6164855A Iron compound sintered alloy for valve seat 失效
标题翻译：用于阀座的铁化合物烧结合金
公开(公告)号：JPS6164855A
公开(公告)日：1986-04-03
申请号：JP18409984
申请日：1984-09-03
申请人： Nippon Funmatsu Gokin Kk , Toyota Motor Corp
发明人： KADOTA YUKIO , MANABE AKIRA , SUGANUMA TETSUYA , OMURA NAOKI , MORIMOTO TOSHIO
IPC分类号： C22C33/02 , C22C38/00 , C22C38/30 , C22C38/60
摘要： PURPOSE: To develop an Fe sintered alloy for valve seat which is excellent in heat resisting property, corrosion resistance and wear resistance by mixing an Fe alloy powder containing a hard carbide, and powder of Co, C, Fe-Mo, etc. by a specified percentage, in an Fe powder, and pressing, forming and sintering them.
CONSTITUTION: In a powdery Fe, 0.3W2wt% carbon powder, 3W15wt% Co powder, 3W15wt% Fe-Mo whose Mo content is 60W70%, 5W40wt% one kind or two kinds or more among Cr, Mo, W, Co and Si containing a carbide whose hardness Hv is 800W1,880 for crystalizing or depositing one kind or two kinds or more of elements selected from a group of Cr, Mo, W and V after sintering, and 3W20wt% one kind or two kinds or more of an Fe alloy which contains 0.5W2wt% C, whose balance consists of Fe, and whose hardness after sintering becomes Hv300W900 are mixed, formed and sintered, and also 1W20wt% Pb is infiltrated as necessary.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：开发一种通过混合含有硬质合金的Fe合金粉末和Co，C，Fe-Mo等粉末的耐热性，耐腐蚀性和耐磨性优异的阀座Fe烧结合金，规定的百分比，以Fe粉末，压制，成型和烧结。构成：在Fe粉末中，0.3〜2重量％的碳粉，3〜15重量％的Co粉，3〜15重量％的Mo-Mo，Mo含量为60〜70％，Cr：5-40重量％，一种或两种以上，含有碳化物的Mo，W，Co和Si，其硬度Hv为800-1,880，用于结晶或沉积从烧结后的Cr，Mo，W和V组中选出的一种或两种以上的元素，以及3-20重量％一种或两种以上的Fe合金，其含有0.5-2重量％的C，余量由Fe组成，烧结后的硬度为Hv300-900混合，形成和烧结，还有1-20重量％的Pb 必要时渗透

3. 发明专利

JP2001040458A WEAR-RESISTANT SINTERED ALLOY AND MANUFACTURE THEREFOR 失效
公开(公告)号：JP2001040458A
公开(公告)日：2001-02-13
申请号：JP21505799
申请日：1999-07-29
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： ANDO KIMIHIKO , MANABE AKIRA , AKIMOTO NAOMICHI , MAEJIMA TAKASHI , KOEDA KATSUMASA , ISHIHARA NAOTOSHI
IPC分类号： F01L3/02 , B22F3/26 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/56
摘要： PROBLEM TO BE SOLVED: To provide a wear-resistant sintered alloy having an improved wear resistance and a suppressed abrasiveness to a mating surface and a manufacturing method therefor. SOLUTION: The whole composition of a wear-resistant sintered alloy is, by wt., 1.5 to 7.0% Co, 2 to 15% Mo, 1 to 8% Cr, 1 to 8% Ni, 0.5 to 7% W, 0.8 to 2.5% C, 0.01 to 2% Si, and the balance Fe with inevitable impurities. The base composition is 2 to 15% Co, 2 to 10% Mo, 20% to 28% Mo, 10 to 30% Cr, 8 to 30% Ni, 10 to 25% W, 0.5 to 5.0% C, 0.5 to 5.0% Si, and the balance Fe with inevitable impurities. The hard particles disperse in the base by 2 to 40 wt.%.

4. 发明专利

JPS6483640A MANUFACTURE OF SINTERED ALLOY HAVING EXCELLENT HIGH TEMPERATURE WEAR RESISTANCE 失效
公开(公告)号：JPS6483640A
公开(公告)日：1989-03-29
申请号：JP23850487
申请日：1987-09-22
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KADOTA YUKIO , MANABE AKIRA , ITO MASAO , MAEJIMA TAKASHI
IPC分类号： B22F3/10 , C22C33/02
摘要： PURPOSE:To easily manufacture a sintered alloy having excellent wear resistance by subjecting the molded body consisting of Cr alloy powder and Fe alloy powder to main sintering while melting partially in liquid phase and regulating its pore ratio to specific one. CONSTITUTION:The Cr alloy powder which is dispersed and burried into a matrix to form into hard grains and the Fe metallic powder contg. the compound having low melting point are mixed; and the mixture is subjected to compression molding. Said molded body is heated to partially produce a liquid phase in low melting point component and the molded body is subjected to main sintering. By this method, the sintered alloy having

5. 发明专利

JPS61174354A MANUFACTURE OF COPPER-CONTAINING SINTERED ALLOY EXCELLENT IN HIGH-TEMPERATURE WEAR RESISTANCE 失效
公开(公告)号：JPS61174354A
公开(公告)日：1986-08-06
申请号：JP1378685
申请日：1985-01-28
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KADOTA YUKIO , MANABE AKIRA , OBUCHI SADATAKA , ITO MASAO
IPC分类号： C22C33/02 , C22C38/00 , C22C38/16 , C22C38/18
摘要： PURPOSE:To manufacture a copper-contg. sintered alloy large in the high-temp. strength and excellent in the high-temp. wear resistance by compacting the mixed powder wherein copper powder is blended with alloyed steel powder in the specified proportion and sintering it in the proper conditions to form the dense sintered alloy. CONSTITUTION:A compact molded body having 5-25% porosity preferably is formed by compacting the following mixed powder with a press or the like wherein copper powder is blended with alloyed steel powder so that the proportion of copper is regulated to 4-12wt% for 100wt% whole parts of the powder. While forming a compact molded body from the metallic liquid consisting of the above-mentioned copper powder and alloyed steel powder by heating the compact molded body at 10-80 deg.C higher than the liquid phase formation temp. of alloyed steel powder, the above-mentioned compact molded body is sintered. Thereby the copper-contg. sintered alloy which has

6. 发明专利

JPS6164858A Iron compound sintered alloy for valve seat 失效
标题翻译：用于阀座的铁化合物烧结合金
公开(公告)号：JPS6164858A
公开(公告)日：1986-04-03
申请号：JP18409884
申请日：1984-09-03
申请人： Nippon Funmatsu Gokin Kk , Toyota Motor Corp
发明人： KADOTA YUKIO , MANABE AKIRA , SUGANUMA TETSUYA , OMURA NAOKI , MORIMOTO TOSHIO
IPC分类号： C22C33/02 , C22C38/00 , C22C38/38 , C22C38/60
摘要： PURPOSE: To develop an Fe compound sintered alloy for valve seat which is excellent in high-temperature wear resistance by mixing powder of C, Co and Fe-Mo of each specified quantity, in Fe alloy powder containing at least one kind of Cr, Mo, V and Mn, and sintering them.
CONSTITUTION: In powder of an iron alloy containing 1W20wt% at least one kind of Cr, Mo, V and Mn, 0.3W2wt% carbon powder, 3W15wt% Co powder, and 3W15wt% Fe-Mo powder whose Mo content is 60W70% are mixed. This mixed powder is pressed and formed in a metallic mold, and thereafter, sintered in an ammonia gas atmosphere of 1,150°C. Or, in addition, 1W20wt% Pb is infiltrated into a sintered part and a valve seat is manufactured. In this way, the valve seat can be manufactured by using an Fe sintered alloy which is excellent in wear resistance at a high temperature.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：开发一种通过混合每种规定量的C，Co和Fe-Mo的粉末，在含有至少一种Cr，Mo的Fe合金粉末中开发耐高温耐磨性优异的阀座Fe复合烧结合金，V和Mn，并烧结它们。构成：在含有1-20重量％Cr，Mo，V和Mn，0.3-2重量％碳粉，3-15重量％Co粉末和3-15重量％Fe-Mo粉末中的至少一种的铁合金粉末中， Mo含量为60-70％混合。将该混合粉末压制成金属模具，然后在1150℃的氨气气氛中烧结。或者，另外，将1-20重量％的Pb渗透到烧结部件中，并制造阀座。以这种方式，可以通过使用在高温下耐磨性优异的Fe烧结合金制造阀座。

7. 发明专利

JPS6479349A FERROUS SINTERED ALLOY FOR VALVE SEAT 失效
公开(公告)号：JPS6479349A
公开(公告)日：1989-03-24
申请号：JP23678387
申请日：1987-09-21
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KADOTA YUKIO , MANABE AKIRA , ITO MASAO , MAEJIMA TAKASHI
IPC分类号： C22C38/00 , C22C38/44
摘要： PURPOSE:To manufacture the title sintered alloy excellent in heat resistance, corrosion resistance, wear resistance, etc., by forming a sintered compact consisting of high-carbon FeCr, FeMo, FeW, C, Ni, Co, and Fe under specific conditions and then infiltrating Pb into the above. CONSTITUTION:An alloy which has a composition consisting of, by weight ratio, 3-15% of high-carbon FeCr containing 60-70% Cr and 2-10% C, 3-15% of FeMo containing 60-70% Mo, 0.5-2% of FeW containing 75-85% W, 0.3-2% C, 3-20% Ni and/or Co, and the balance Fe is prepared. A green compact of this alloy is subjected to heating treatment in a reducing atmosphere at about 1,100-1,250 deg.C for about 30-60min so as to be formed into a sintered compact, and then, this green compact is brought into contact with Pb and subjected to heating treatment again in a reducing atmosphere at about 1,000-1,100 deg.C for about 30-60min, by which Pb is infiltrated into the sintered compact by 1-20%. By this method, a ferrous sintered alloy for valve seat excellent in wear resistance can be obtained.

8. 发明专利

JPS62202044A MANUFACTURE OF SINTERED ALLOY SUPERIOR IN HIGH TEMPERATURE WEAR RESISTANCE 失效
公开(公告)号：JPS62202044A
公开(公告)日：1987-09-05
申请号：JP4461786
申请日：1986-02-28
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KADOTA YUKIO , MANABE AKIRA , OBUCHI SADATAKA , ITO MASAO
IPC分类号： C22C33/02 , B22F3/26 , C22C38/00
摘要： PURPOSE:To obtain the titled alloy superior in high temp. strength at a prescribed porosity value or less, by liquid phase sintering a compact of iron material powder contg. one or two kinds among Co alloy powder, low m.p. such as iron phosphide, triiron monophosphide and Cu. CONSTITUTION:Iron metal powder contg. one or two kinds among Co alloy powder contg. respective prescribed quantities of Mo, Cr, Si, etc., phosphor alloy powder selected from phosphor alloy powder such as copper phosphide, triiron monophosphide and Cu is compacted. Next, the compact is brought into contact with molten infiltrating agent while being heated to a temp. higher than liquid phase forming temp. of iron metal powder by 0-50 deg.C. In this way, the infiltrating agent is infiltrated into pores in compact, and the compact is sintered to obtain the aimed sintered alloy having

9. 发明专利

JPS6164856A Icon compound sintered alloy for valve seat 失效
标题翻译：图示化合物用于阀座的烧结合金
公开(公告)号：JPS6164856A
公开(公告)日：1986-04-03
申请号：JP18409684
申请日：1984-09-03
申请人： Nippon Funmatsu Gokin Kk , Toyota Motor Corp
发明人： KADOTA YUKIO , MANABE AKIRA , SUGANUMA TETSUYA , OMURA NAOMI , MORIMOTO TOSHIO
IPC分类号： C22C33/02 , C22C38/00 , C22C38/38 , C22C38/60
摘要： PURPOSE: To develop an Fe sintered alloy for valve seat which is excellent in heat resisting property, corrosion resistance and wear resistance by mixing such powder as C, Co, Fe-Mo, etc. by a specified percentage in a powder of an Fe alloy of a specified composition, and forming and sintering them.
CONSTITUTION: In an Fe base alloy powder containing 1W20wt% one kind or two kinds or more among Cr, Mo, V and Mn, 0.3W2.0wt% carbon powder, 3W15wt% Co powder, 3W15wt% Fe-Mo powder whose Mo content is 60W70%, 5W40wt% one kind or two kinds or more among Cr, Mo, W, V, Co and Si containing a carbide whose hardness Hv is 800W1,800 for crystallizing or depositing one kind or two kinds or more of elements selected from among Cr, Mo, W and V after sintering, and 3W60wt% one kind of two kinds or more of a hard Fe alloy which contains 0.5W2wt% C and whose hardness Hv after sintering becomes 300W900 are mixed, formed and sintered, and 1W20wt% Pb is infiltrated as necessary.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：开发一种用于阀座的Fe烧结合金，其耐热性，耐腐蚀性和耐磨性优异，通过将Fe，Fe，Mo等粉末以Fe合金的粉末混合一定比例的特定组成，并形成并烧结它们。构成：在Cr，Mo，V和Mn中含有1-20重量％的一种或两种以上的Fe基合金粉末中，含有0.3〜2.0重量％碳粉末，3-15重量％Co粉末，3-15重量％Fe- Mo含量为60-70％的Mo粉末，Cr，Mo，W，V，Co和Si中的一种或两种以上为5-40wt％，其硬度为Hv为800-1,800，用于结晶或沉积一种或两种以上选自Cr，Mo，W和V中的元素，以及3-60重量％的一种两种或更多种含有0.5-2重量％C并且其烧结后的硬度Hv的硬质合金成为300-900个混合，成型和烧结，1-20wt％的Pb在必要时渗透。

10. 发明专利

JPS62202045A MANUFACTURE OF SINTERED ALLOY SUPERIOR IN HIGH TEMPERATURE WEAR RESISTANCE 失效
公开(公告)号：JPS62202045A
公开(公告)日：1987-09-05
申请号：JP4461886
申请日：1986-02-28
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KADOTA YUKIO , MANABE AKIRA , OBUCHI SADATAKA , ITO MASAO
IPC分类号： C22C33/02 , C22C38/00
摘要： PURPOSE:To obtain sintered alloy superior in characteristics such as high temp. strength and wear resistance, by heating and melting compact of lubricant powder such as lead and material iron powder contg. low m.p. composed of phosphide and sintering it to a prescribed porocity or below. CONSTITUTION:Mixed powder of lubricative powder of lead, manganese sulfide, etc., and material iron powder contg. low m.p. compd. such as copper phosphide, triiron monophosphide is press formed to compact (formed body). Compsn. of the material iron powder composed of alloy copper powder contg. by weight 2.5-25% Cr, 0.2-3.0% C, and the low m.p. alloy powder under 0.1-0.8% P in mixed powder is desirable. Next, the compact is heated to temp. higher than m.p. of the compact by 0-50 deg.C to carry out liquid phase sintering. Lubricative substances such as lead and manganese sulfide are dispersed in sintered alloy obtd., in such a way and wear resistance is improved without deteriorating strength of matrix under high temp.

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