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81. 发明专利

JPH03291183A METHOD FOR FORMING PURE CU BUILD-UP LAYER ON IRON ALLOY BASE MATERIAL 失效
公开(公告)号：JPH03291183A
公开(公告)日：1991-12-20
申请号：JP9279690
申请日：1990-04-06
申请人： TOYOTA MOTOR CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： KAWASAKI MINORU , TAKAGI MUNEYA , MORI KAZUHIKO , KATO SHINJI , KOTETSU YASUO
IPC分类号： B23K26/34 , B23K9/04 , B23K15/00 , B23K35/30
摘要： PURPOSE:To form a pure Cu build-up layer on a build-up auxiliary metal solidified layer by placing mixed powder of pure Cu powder and build-up auxiliary metallic powder of a specific condition on an iron alloy base material and melting them by a high density energy source. CONSTITUTION:At the time of forming a pure Cu build-up layer 34 on an iron alloy base material 10, mixed powder of pure Cu powder and build-up auxiliary metallic powder whose melting point is higher than that of the pure Cu powder, whose Ni content is

82. 发明专利

JPH02196117A CYLINDER HEAD 失效
公开(公告)号：JPH02196117A
公开(公告)日：1990-08-02
申请号：JP1379489
申请日：1989-01-23
申请人： TOYOTA MOTOR CORP
发明人： KAWASAKI MINORU , TAKAGI MUNEYA , MORI KAZUHIKO , KATO SHINJI
IPC分类号： F01L3/02 , B23K26/34 , F02F1/24
摘要： PURPOSE:To enhance the extent of deposition efficiency to a cylinder head in a clad seat layer by forming a plastic deformation layer in a base metal surface layer at the underside of the clad seat layer formed in a part equivalent to a valve seat of the cylinder head. CONSTITUTION:A port part 2 is formed in a cylinder head body 1, and this port part 2 is opened to a recess 3 at the side of a combustion chamber. Likewise, a valve seat surface 5, with which a valve 4 comes into contact, is formed in an opening end of the port part 2. In addition, the valve seat surface 5 is partitioned off by a clad seat layer 6 padded by laser cladding. In the above constitution, a plastic deformation layer 7 plastically deformed by a mill roller or the like is formed in a base metal surface layer at the underside (side of the cylinder head 1) of the clad seat layer 6. With this constitution, a defect 8 such as a pinhole or the like so far existing in the cylinder head body 1 (base metal part) is brought to nothing in substance at a part of the plastic deformation layer 7.

83. 发明专利

JPH01111831A WEAR-RESISTANT CU-BASE ALLOY 失效
公开(公告)号：JPH01111831A
公开(公告)日：1989-04-28
申请号：JP26776687
申请日：1987-10-23
申请人： TOYOTA MOTOR CORP
发明人： MORI KAZUHIKO , TAKAGI MUNEYA , KAWASAKI MINORU , KATO SHINJI
IPC分类号： C22C9/00 , C23C30/00
摘要： PURPOSE:To form a dispesion-strengthened Cu-base alloy layer having excellent wear resistance, heat resistance and lubricity by forming a structure phase consisting of a Cu-base phase as well as an Fe-Ni-Cr silicide phase and boride phase on the surface of a metallic base body. CONSTITUTION:While the metallic body 1 to be treated is moved in an arrow P direction, alloy powder having the compsn. contg., by weight %, 30-50% Fe, 10-30% Ni, 1-20% Cr, 1-7% Si or further, 0.5-5% B, and consists of the balance Cu or the powder mixture 2 composed of the above-mentioned components is supplied from a supply pipe 3 onto the surface thereof. Laser light 4 is projected thereon while the laser light is oscillated at a width W to melt 9 the powder and to solidify the melt, by which a welded layer 8 is formed. The welded layer 8 has the structure in which the island-shaped parts essentially consisting of the Fe-Ni-Cr silicide phase P2 are dispersed in a manner as to be respectively enclosed by the net-like parts essentially consisting of the Cu-base matrix phase P1; in addition, the net-like has the structure that the phases P2 of the Fe-Ni-Cr silicide phase or boride are finely dispersed at 30-60% area rate in the Cu-base phase P1 and the island-like part has the structure that the Cu-base phases P1 are conversely finely dispersed in the Fe-Ni-Cr silicide phase P2.

84. 发明专利

JPS6453790A LASER BEAM BUILD-UP METHOD 失效
公开(公告)号：JPS6453790A
公开(公告)日：1989-03-01
申请号：JP20798887
申请日：1987-08-21
申请人： TOYOTA MOTOR CORP
发明人： KATO SHINJI , TAKAGI MUNEYA , KAWASAKI MINORU , MORI KAZUHIKO
IPC分类号： B23K26/34
摘要： PURPOSE:To obtain a build-up layer excellent in wear resistance and surface property by supplying mixed powder of build-up alloy powder with wear resistant particle powder onto base material and projecting a laser beam having conditions to melt both powders to precipitate wear resistant particles in the process of cooling and solidifying. CONSTITUTION:A silicide, a boride, etc., besides a carbide are used as the wear resistant particles. On the other hand, it is preferable to select properly from a characteristic required for the build-up layer and the relation with the base material as a build-up alloy and a Ni-Cr alloy, etc., with respect to the iron base material, for instance, are used for this purpose. While or after the above-mentioned mixed powder is supplied to a build-up part of the base material, the laser beam is projected to melt the mixed powder. The conditions to melt not only the build-up alloy powder but also the wear resistant particle powder such as the carbide are required as the irradiation conditions of the laser beam. Continuously, a molten pool is rapidly cooled and solidified to form the build-up layer by stopping the laser beam irradiation or moving the laser beam irradiation position. At this time, the heat resistant particles such as the carbide which are once molten in the build-up alloy are dispersed and crystallized.

85. 发明专利

JPS63195365A CYLINDER BORE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63195365A
公开(公告)日：1988-08-12
申请号：JP2782687
申请日：1987-02-09
申请人： TOYOTA MOTOR CORP
发明人： KATO SHINJI , UEDA KATSUHIKO , TAKAGI MUNEYA , KAWASAKI MINORU , MORI KAZUHIKO
IPC分类号： B23K9/04 , B23K35/30 , C22C19/03 , C22C37/00 , F02B77/02 , F02F1/00
摘要： PURPOSE:To prevent the abrasion at the inner surface of a bore, by swelling and welding anticorrosive and antiabrasive alloys with different components near the top dead center of compression rings and near the top dead center of an oil ring respectively at the inner surface of the cylinder bore. CONSTITUTION:At the inner surface of a cylinder bore 2, the first anticorrosive and antiabrasive alloy 6 is swelled and welded near the top dead center of compression rings 3 and 4, while the second anticorrosive and antiabrasive alloy 7 is swelled and welded near the top dead center of an oil ring 5. In this case, the first swelled layer 6 is formed of an excellent anticorrosive alloy, while the second swelled layer 7 is formed of an excellent mechanically antiabrasive alloy. Therefore, the abrasion can be suppressed sufficiently both near the top dead center of the compression rings where the corrosive abrasion is severe and near the top dead center of the oil ring where the mechanical abrasion is severe.

86. 发明专利

JPS63144884A FORMATION OF DISPERSED ALLOY LAYER ON METALLIC BASE BODY 失效
公开(公告)号：JPS63144884A
公开(公告)日：1988-06-17
申请号：JP29205586
申请日：1986-12-08
申请人： TOYOTA MOTOR CORP
发明人： MORI KAZUHIKO , UEDA KATSUHIKO , TAKAGI MUNEYA , KAWASAKI MINORU
IPC分类号： B23K26/34 , B23K26/08 , C23C24/10 , C23C26/00 , C23C26/02
摘要： PURPOSE:To permit quick formation of a dispersed alloy layer having wear resistance only on the surface in the desired part of a metallic base body by using an alloy system which separates to >=2 liquid phases at above the m.p. and solidifies quickly and controlling melting and stirring conditions by a laser. CONSTITUTION:Laser light 4 is projected to powder 2 on the metallic base body 1 by which the powder 2 is melted to form a melt 9. The powder 2 to be used at this time is the alloy system which separates to multiple liquid phases of >=2 liquid phases at the temp. above the m.p., solidifies in the separated state of the respective liquid phases at the time of quick solidification and has >=0.3 ratio of the sp. grs. between the liquid phase having the smallest sp. gr. among the respective liquid phases to solidify and the liquid phase having the largest sp. gr. The laser light 4 is further oscillated at 10-500Hz frequency in the direction approximately orthogonal with the main relative moving direction. The melt 9 is quickly solidified at >=10 deg/sec by the heat transfer to the side of the metallic base body 1 to form the dispersed alloy layer 8 when said melt is brought by the movement of the body 1 in the direction P to the position where the laser light 4 is not projected.

87. 发明专利

JPS6238790A FORMATION OF ALLOY LAYER BY CO2 LASER 失效
公开(公告)号：JPS6238790A
公开(公告)日：1987-02-19
申请号：JP17843185
申请日：1985-08-13
申请人： TOYOTA MOTOR CORP
发明人： KAWASAKI MINORU , TAKAGI MUNETANI , MORI KAZUHIKO , KATO SHINJI
IPC分类号： C23C26/00 , B23K9/04 , B23K26/34 , B23K35/28 , C22C1/02 , C23C24/10
摘要： PURPOSE:To easily form an alloy layer on the surface of an Al alloy material and to form the defectless alloy layer having adequate characteristics by disposing alloying powder contg. Bi and alloy element on the surface of an Al alloy base metal and irradiating CO2 layer thereto. CONSTITUTION:The alloying powder ocntg. Bi and alloy element is disposed on the surface of the Al alloy base metal 1 and argon as a shielding gas is released from the tip of a laser gun 6. The laser gun 6 is scanned while the molten part is shielded by the argon. The surface of the alloying powder layer 5 and the alloy base metal 1 is melted to form beads 8. Since the alloying powder contains Bi, said powder has high electric resistivity hence high laser absorptivity. The alloying powder is thus easily melted to form the alloy layer.

88. 发明专利

JPS5923867A Gearshift fork made of cast iron 失效
标题翻译：铸铁车齿轮制造
公开(公告)号：JPS5923867A
公开(公告)日：1984-02-07
申请号：JP13435482
申请日：1982-07-30
申请人： Toyota Motor Corp
发明人： TAKAGI MUNEYA , KAWASAKI MINORU , FUKUMIZU TOSHIHARU
IPC分类号： C23C8/02 , C23C8/26 , C23F17/00 , F16H63/00 , F16H63/32 , G05G3/00
CPC分类号： C23C8/02 , F16H2063/324
摘要： PURPOSE:To improve the wear resistance of a shift fork, by applying high- density energy to the sliding surface of the tip claw part of the fork sliding along a gear coupling sleeve to form a hardened cementite layer and by forming a nitride layer on the cementite layer. CONSTITUTION:The sliding surface of the tip claw part of a shit fork made of cast iron sliding along a gear coupling sleeve is remelted using a high-density energy source such as laser, TIG arc or electron beams, and the surface layer of the sliding surface is converted into a hardened cementite layer. Nitridation is then carried out to form a nitride layer on the cementite layer. Thus, the wear resistance of the sliding surface of the tip claw part of the shift fork is remarkably improved.
摘要翻译：目的：为了提高换挡叉的耐磨性，通过将高密度能量施加到叉形件的尖爪爪部分的滑动表面，沿着齿轮联轴器套筒滑动以形成硬化的渗碳体层，并通过在其上形成氮化物层渗碳层。构成：使用诸如激光，TIG弧或电子束的高密度能量源，使用铸铁滑动的齿轮叉头的爪爪部分的滑动表面被重新熔化，并且滑动表面层表面被转化成硬化的渗碳体层。然后进行氮化，以在渗碳体层上形成氮化物层。因此，变速叉的前端爪部的滑动面的耐磨性显着提高。

89. 发明专利

JPS5779534A Shift fork 失效
标题翻译： SHIFT FORK
公开(公告)号：JPS5779534A
公开(公告)日：1982-05-18
申请号：JP15404780
申请日：1980-11-01
申请人： Toyota Motor Corp
发明人： SASAKI SHINOBU , TAKAGI MUNEYA , KAWASAKI MINORU
IPC分类号： B60K20/02 , F16H63/00 , F16H63/32 , G05G3/00
CPC分类号： F16H63/32 , F16H2063/324
摘要： PURPOSE:To improve wear resistance by forming a chromium plating film on the sliding surface of the pawl part of a fork and by specifying it surface roughness. CONSTITUTION:The pawl part of a shift fork made of cast iron is plated with chromium, and the coating surface is polished with a buff to =#250 grain size to obtain
摘要翻译：目的：通过在叉的棘爪部分的滑动表面上形成镀铬膜并指定其表面粗糙度来提高耐磨性。构成：用铸铁制成的换档拨叉的卡爪部分镀铬，涂层表面用抛光面抛光至<= 5mrRz的表面粗糙度。首先，换挡叉用已知的材料铸造并切割成10muRz的表面隆起。然后，仅将叉1的棘爪部分2和3浸入铬酸酐，硫酸和氟硅化物的氟化物浴中，并以约50度离开1-3 / 2小时。因此，镀膜厚度为20-30μm，膜硬度为约850-900Hv，因此用> =＃250晶粒尺寸的磨粒进行抛光抛光以获得<= 5mRz的表面粗糙度。

90. 发明专利

JPS5770221A High-frequency induction type hardening method 失效
标题翻译：高频感应式硬化方法
公开(公告)号：JPS5770221A
公开(公告)日：1982-04-30
申请号：JP14537980
申请日：1980-10-17
申请人： Toyota Motor Corp
发明人： SASAKI SHINOBU , TAKAGI MUNEYA , KAWASAKI MINORU
IPC分类号： C21D1/10 , C21D1/62
CPC分类号： C21D1/10 , Y02P10/253
摘要： PURPOSE:To obtain a high-quality hardened article having less strain even in the case where hardening conditions are varied, by providing a second cooling coil for cooling the outside peripheral part of the article at the time of cooling operation after high-frequency induction heating. CONSTITUTION:The heating coil 8 havng an annular configuration is provided in the proximity of the outside periphery of the article 1 and is supplied with cooling water through a cooling pipe 9. The cooling water fed into the coil 8 is discharged from jetting holes 80 for the cooling water and cools the external peripher side of the article 1. Each of cooling pipes 9, 5, 6 is fixed to a fitting plate 10. The timing of jetting the cooling water from the cooling coil 8 is set to be simultaneous with the timing of jetting the cooling water on the internal periphery side or be within a delay of about 5sec behind the latter-mentioned timing, depending on the shape of the article, the degree of strain induced therein and the like.
摘要翻译：目的：为了获得即使在硬化条件变化的情况下也具有较小应变的高品质硬化制品，通过在高频感应加热之后提供用于冷却制品外周部分的第二冷却盘管。构成：在制品1的外周附近设置加热线圈8，并且通过冷却管9供给冷却水。供给到线圈8的冷却水从喷射孔80排出，冷却水并冷却物品1的外部周边侧。各冷却管9,5,6固定在嵌合板10上。将来自冷却盘管8的冷却水喷射的时间设定为与根据制品的形状，在其中引起的应变程度等，在内周侧喷射冷却水的时间或在后面提到的时间之后约5秒的延迟时间内。

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