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1. 发明专利

JPH02117797A ALLOY FOR VALVE BUILD-UP 失效
公开(公告)号：JPH02117797A
公开(公告)日：1990-05-02
申请号：JP17942289
申请日：1989-07-12
申请人： TOYOTA MOTOR CORP , FUKUDA METAL FOIL POWDER
发明人： OISHI SHINJI , NAKAGAWA MASAHIRO , KOYAMA HARATSUGU , TANAKA KANICHI , NAGAI SHOZO , HIDAKA KENSUKE
IPC分类号： B23K35/30 , B23K35/32 , C22C30/00 , F01L3/02 , F02B1/04
摘要： PURPOSE:To maintain necessary high temperature hardness, and also, to contrive the improvement of a PbO resistance and a PbO+PbSO4 resistance by specifying the composition of a valve build-up use alloy. CONSTITUTION:A valve build-up use alloy consists of 30-40% Cr, 15-31% Ni, 7-20% Mo, 0.7-2.2% C,

2. 发明专利

JPS63219563A MANUFACTURE OF DISK ROTOR 失效
公开(公告)号：JPS63219563A
公开(公告)日：1988-09-13
申请号：JP5434587
申请日：1987-03-10
申请人： TOYOTA MOTOR CORP
发明人： OISHI SHINJI , MIYAKE JOJI , KOYAMA HARATSUGU , KAKIHARA KENJI , OZAWA MAKOTO , ICHIKAWA SHIGERU
IPC分类号： F16D65/12 , C23C4/18
摘要： PURPOSE:To prevent deterioration in frictional resistance at a sliding surface, by thermally spraying a wear-resistant and heat-resisting metallic material on the sliding surface of a disk rotor body and by applying reduction treatment to the above body so as to reduce the amount of oxide in the thermally sprayed layer to a specific value or below. CONSTITUTION:A wear-resistant and heat-resisting metallic material is thermally sprayed on the sliding material 2, with which a brake friction pad is to be brought into contact, of a disk rotor body 1 composed of Al alloy, cast iron, etc., so as to form a thermally sprayed layer 3. Further, a coppery or ferrous material is mainly used as the above thermal spraying material, and thermal spraying is carried out by means of a wire gas thermal spraying method, a wire arc thermal spraying method, etc. Subsequently, the above-mentioned disk rotor body is subjected to reduction treatment in a hydrogen air flow in a reducing furnace. By this reduction treatment, the amount of oxide contained generally by >=about 10% in the above thermally sprayed layer 3 is reduced to

3. 发明专利

JPS63183162A THERMAL SPRAYING WIRE 失效
公开(公告)号：JPS63183162A
公开(公告)日：1988-07-28
申请号：JP1381087
申请日：1987-01-23
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HARATSUGU , MIYAKE JOJI , OISHI SHINJI
IPC分类号： C23C4/04 , C23C4/12 , C23C14/04
摘要： PURPOSE:To freely change the mixing and compounding ratio between dissimilar materials, by constituting a thermal spraying wire of a stranded wire consisting of >=3 pieces of hollow wire and also by filling respective hollow parts of one of more pieces of the hollow wire with a wire dissimilar to the hollow wire. CONSTITUTION:For example, a thermal spraying wire 1 is formed as a stranded wire by using three pieces of hollow copper wire 2, e.g., of pure copper having about 3.2mm outside diameter and about 2.4mm inside diameter and four pieces of copper - stainless steel wire 4 prepared by filling the hollow part of the above copper wire 2 with stainless steel wire 3, e.g., SUS316 by JIS. When this thermal spraying wire 1 is thermally sprayed on the surface of a steel sheet 5 as a base material, e.g., JIS-S45C, by an arc thermal spraying method, a mixed and compounded thermally sprayed layer in which respective thermally sprayed and laminated grains 3a and 2a of the stainless steel wire 3 and the copper wire 2 are laminated in the ratio of 1 to 3 can be formed. Accordingly, by changing respective numbers of the stainless steel wire 3 and the copper wire 2, the mixing and compounding ratio between both can be changed.

4. 发明专利

JPS6333517A REMELTING CHILL-TREATING METHOD FOR CAST IRON 失效
公开(公告)号：JPS6333517A
公开(公告)日：1988-02-13
申请号：JP17347786
申请日：1986-07-23
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HARATSUGU , MIYAKE JOJI , OISHI SHINJI , KANAZAWA TAKAAKI
IPC分类号： C21D1/09 , C21D5/00
摘要： PURPOSE:To prevent the development of cracking by remelting chill treatment by forming a primary chilled layer having the specific graphite crystallization rate by irradiating high density energy on the cast iron surface and further forming a thin secondary chilled layer by irradiating high density energy on this chilled layer. CONSTITUTION:The prescribed part of cast iron base material 1 is irradiated by the high density energy 2, such as TIG arc, etc., and so the surface layer of base material 1 is remelted and resolidified, to form the primary chilled layer 3 having 10-50% area ratio as the graphite crystallization rate. Next, in the region of the primary chilled layer 3, the surface is again irradiated by the high density energy 2 and the thiner part than the primary chilled layer 3 in the region of the primary chilled layer 3, is remelting and resolidified, to form the secondary chilled layer 4 having

5. 发明专利

JPS62297454A CAST IRON MEMBER HAVING RESISTANCE TO CORROSION BY FORMIC ACID 失效
公开(公告)号：JPS62297454A
公开(公告)日：1987-12-24
申请号：JP13870386
申请日：1986-06-14
申请人： TOYOTA MOTOR CORP
发明人： KANAZAWA TAKAAKI , MIYAKE JOJI , KOYAMA HARATSUGU , OISHI SHINJI
IPC分类号： C23C10/28
摘要： PURPOSE:To provide improved resistance to corrosion by formic acid necessary for a methanol-fueled engine to a cast iron base material by forming an Fe-Si alloyed layer having a prescribed concn. of Si on the surface of the base material. CONSTITUTION:An Si coating layer is formed on the surface of a cast iron base material by thermally spraying Si powder on the surface. The coating layer and a part of the base material are then melted by projecting high density energy such as laser beams or electron beams to alloy a part of the cast iron with the coating component. The average concn. of Si in the resulting alloyed layer is regulated to 10-20wt%.

6. 发明专利

JPS6154932A Heat-resistant part and manufacture thereof 失效
标题翻译：耐热部件及其制造
公开(公告)号：JPS6154932A
公开(公告)日：1986-03-19
申请号：JP17873484
申请日：1984-08-27
申请人： Toyota Motor Corp
发明人： KOYAMA HARATSUGU , MIYAKE JOJI , TOMOTA TAKASHI , OISHI SHINJI , KANAZAWA TAKAAKI
IPC分类号： C23C28/00 , B32B15/04 , B32B18/00 , C23C30/00

7. 发明专利

JPH01104906A CYLINDER FOR CAST-IRON INTERNAL COMBUSTION ENGINE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH01104906A
公开(公告)日：1989-04-21
申请号：JP7319487
申请日：1987-03-27
申请人： TOYOTA MOTOR CORP
发明人： KANAZAWA TAKAAKI , MIYAKE JOJI , KOYAMA HARATSUGU , OISHI SHINJI
IPC分类号： C22C37/00 , C21D5/00 , F01L3/02 , F02F1/24
摘要： PURPOSE:To improve abrasion resistance and reduce attackability against its opposite member and so on by forming an alloyed cast iron layer with a specific constituent on the surface of a valve seat part in a cylinder head body consisting of cast iron extending over more than the specified depth. CONSTITUTION:On the surface of a valve seat part 2 in a cylinder head body 1 consisting of cast iron, one type or more than two types of metallic elements higher in a carbide forming trend than iron (Fe) are contained as much as 0.1-10wt.% in total, and an alloyed cast iron layer 3 contained with either of Ni or Co or both as much as 0.1-15wt.% in total is formed over the depth of more than 0.2mm. The alloyed cast iron layer 3 uses austenite and/or pearlite for the ground, while a residual cementite of 2-15% exists thereon, and it is set to a layer of hardness Hv250-400 made up of a structure where massive graphite is crystallized. According to this method, abrasion resistance is improvable and, what is more, attackability against an opposite valve face plane is reducible.

8. 发明专利

JPS6350418A METHOD FOR LOCALIZED TREATMENT FOR MASSIVE GRAPHITIZATION OF CAST IRON PARTS 失效
公开(公告)号：JPS6350418A
公开(公告)日：1988-03-03
申请号：JP19428986
申请日：1986-08-20
申请人： TOYOTA MOTOR CORP
发明人： KANAZAWA TAKAAKI , MIYAKE JOJI , KOYAMA HARATSUGU , OISHI SHINJI
IPC分类号： C21D5/00 , C21D1/09 , C21D1/34
摘要： PURPOSE:To effectively prevent development of cracking in the treated layer by irradiating high density energy on a part of cast iron parts surface to form the chilled layer by melting and solidifying it and graphitizing this chilled layer under the specific condition. CONSTITUTION:The high density energy 2, such as laser, etc., is projected on the desired part of cast iron parts 1, composing of flaked graphite cast iron or spheroidal graphite cast iron to rapid melting to the prescribed depth range. The melted part 3 melted by irradiating the high density energy 2, becomes a chilled layer 4 solidifying rapidly by stopping or shifting the irradiation. Before the temp. of developed chilled layer 4 falls to

9. 发明专利

JPS6288827A DISC ROTOR 失效
公开(公告)号：JPS6288827A
公开(公告)日：1987-04-23
申请号：JP22806385
申请日：1985-10-14
申请人： TOYOTA MOTOR CORP
发明人： OISHI SHINJI , MIYAKE JOJI , KOYAMA HARATSUGU
IPC分类号： F16D65/12 , C23C4/02
摘要： PURPOSE:To prevent thermal deformation and the occurrence of cracks by forming an intermediate layer having good thermal conductivity between a thermal spraying layer formed on a sliding surface and a base metal. CONSTITUTION:A disc rotor body 1 is cast by gray cast iron, and an intermediate layer 2 made of copper is formed on a sliding surface of the disc rotor body by electroplating. Subsequently, mixed power composed of 36% Fe, 50% Cr, 4% C, and 10% Mo is plasma-sprayed to form a thermal spraying layer. The thickness of the intermediate layer 2 is preferably 1/5-1 of the thickness of the thermal spraying layer 3. Accordingly, thermal conductivity can be improved, so that a rise in surface temperature of the thermal spraying layer 3 is restrained to reduce thermal deformation and improve durability.

10. 发明专利

JPS61115675A Method of building up by welding on face of engine valve 失效
标题翻译：通过焊接在发动机阀门面上建立的方法
公开(公告)号：JPS61115675A
公开(公告)日：1986-06-03
申请号：JP23543484
申请日：1984-11-08
申请人： Toyota Motor Corp
发明人： KOYAMA HARATSUGU , OISHI SHINJI
IPC分类号： B23K9/04 , F01L3/02
CPC分类号： B23K9/046
摘要： PURPOSE:To reduce the quantity of building up alloy and its cost used for forming a uniform deposition bead by making building up rotating the building up alloy bar clockwise around the axis to the direction of advance of a molten pool. CONSTITUTION:The building up alloy bar 7 is rotated clockwise to the direction of advance of the molten pool 6. Thereby, the the molten pool 6 is faced to backside 4 having large heat capacity. Accordingly, overflow of molten building up alloy to margin 3 side is reduced, and at the same time, the molten pool 6 flows in a fixed direction and a regular deposition bead is formed. Consequently, dispersion of the deposition bead 6 is reduced, and feeding of the building up alloy bar 7 is confined to a minimum.
摘要翻译：目的：为了减少建立合金的数量和用于形成均匀沉积珠的成本，通过使建筑物沿着轴向顺时针旋转，使熔融池前进方向顺时针旋转。构成：将合金棒7顺时针旋转到熔池6的前进方向。由此，熔池6面对热容量大的背面4。因此，熔融堆积合金向边缘3侧的溢出减少，同时，熔池6沿固定方向流动，形成规则的沉积珠。因此，沉积珠6的分散减少，建筑合金棒7的进给被限制在最小限度。

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