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公开(公告)号：US11891699B2
公开(公告)日：2024-02-06
申请号：US17257937
申请日：2018-07-06
发明人： Masahito Fujikawa , Hidenobu Matsuyama , Eiji Shiotani , Yoshitsugu Noshi , Hirohisa Shibayama , Koukichi Kamada , Naoki Okamoto , Junichi Hamasaki
摘要： The nozzle for cold spray (25) used in a cold spray apparatus (2) is configured to include a tubular nozzle main body (252) and a cooling jacket (253) that surrounds the nozzle main body (252) to form a flow path (25e) for refrigerant (R) between the nozzle main body (252) and the cooling jacket (253). The cooling jacket (253) is provided with a seal retaining portion (253c) that retains an O-ring (253b) for the flow path (25e). The seal retaining portion (253c) and the nozzle main body (252) are joined in a socket-and-spigot joint fashion.
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公开(公告)号：US11535942B2
公开(公告)日：2022-12-27
申请号：US17276630
申请日：2018-09-18
发明人： Hirohisa Shibayama , Hidenobu Matsuyama , Eiji Shiotani , Yoshitsugu Noshi , Koukichi Kamada , Naoki Okamoto , Masahito Fujikawa , Junichi Hamasaki , Masatoshi Inoguchi
摘要： When forming valve seat coats at opening portions (16a1 to 16a8) of intake ports (16) provided at a cylinder block mounting surface (12a) of a semimanufactured cylinder head (3), the nozzle of a cold spray apparatus moves along a nozzle movement path for air intake (Inp1) that is set between any two of the plurality of opening portions (16a1 to 16a8), while continuing to spray a raw material powder. When forming valve seat coats at opening portions (17a1 to 17a8) of exhaust ports (17), the nozzle moves along a nozzle movement path for air exhaust (Enp1) that is set between any two of the plurality of opening portions (17a1 to 17a8), while continuing to spray the raw material powder.
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公开(公告)号：US11827985B2
公开(公告)日：2023-11-28
申请号：US17598930
申请日：2019-03-29
发明人： Koukichi Kamada , Hirohisa Shibayama , Naoya Tainaka , Yoshito Utsumi , Hidenobu Matsuyama , Eiji Shiotani , Toshio Ogiya , Haruhiko Suzuki
摘要： A film forming method forms a coating film on a workpiece (e.g., a cylinder head) having a film-deposited portion (e.g., an annular valve seat part) by moving a nozzle of a cold spray device relative to the workpiece along a film formation trajectory having a film formation starting point and a film formation finishing point in which the film-deposited portion overlaps to form an overlapping portion. The coating film is formed by causing a raw material powder to collide in a solid-phase state with the workpiece and plastically deform. Also, the coating film on the film-deposited portion is further formed such that an inclination angle of an end part of the coating film relative to a surface of the film-deposited portion is 45° or less at the film formation starting point of the overlapping portion.
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公开(公告)号：US09885311B2
公开(公告)日：2018-02-06
申请号：US14359829
申请日：2012-10-30
发明人： Kazuaki Taniguchi , Yoshiaki Miyamoto , Daisuke Terada , Eiji Shiotani , Yoshitsugu Noshi , Takafumi Watanabe , Kiyokazu Sugiyama , Hirotaka Miwa , Mitsuo Hayashi
摘要： A thermally sprayed coating is formed on an inner surface of a cylinder bore of a cylinder block by using a thermal spray gun. The thermal spray gun is reciprocated along an axial direction in the cylinder bore while being rotated, and injects melted droplets generated by melting a wire made of a ferrous material from a nozzle at its end. At this time, a moving speed of the thermal spray gun along the axial direction into the cylinder bore is made equal-to or larger-than a predetermined value, and the number of reciprocating cycles of the thermal spray gun along the axial direction into the cylinder bore is made equal-to or larger-than a predetermined value.
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公开(公告)号：US09805457B2
公开(公告)日：2017-10-31
申请号：US15324250
申请日：2014-07-08
发明人： Hirohisa Shibayama , Eiji Shiotani , Satoru Sakurai , Kiyokazu Sugiyama , Akira Shimizu , Daisuke Terada , Yoshitsugu Noshi , Yoshito Utsumi
CPC分类号： G06T7/0004 , B05B9/01 , B05B13/06 , B23Q17/24 , B24B33/02 , G01B11/22 , G01B11/30 , G01N21/88 , G01N21/954 , G01N2021/9548 , G01N2201/10 , G01N2201/12 , G06T7/507 , G06T7/62 , G06T2207/30108 , G06T2207/30148
摘要： Provided is a defect detection device capable of measuring the volume of surface defects. The defect detection device includes: an imaging device configured to image an image of an inspection object; a binarization processing unit configured to subject the image to first and second binarization processing by use of different first and second binarization thresholds, so as to calculate first and second sizes for an identical defect in the image; a ratio calculation unit configured to calculate a first ratio of the second size to the first size; and a depth determination unit configured to determine a depth of the defect depending on the first ratio.
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公开(公告)号：US20140311438A1
公开(公告)日：2014-10-23
申请号：US14359829
申请日：2012-10-30
发明人： Kazuaki Taniguchi , Yoshiaki Miyamoto , Daisuke Terada , Eiji Shiotani , Yoshitsugu Noshi , Takafumi Watanabe , Kiyokazu Sugiyama , Hirotaka Miwa , Mitsuo Hayashi
摘要： A thermally sprayed coating is formed on an inner surface of a cylinder bore of a cylinder block by using a thermal spray gun. The thermal spray gun is reciprocated along an axial direction in the cylinder bore while being rotated, and injects melted droplets generated by melting a wire made of a ferrous material from a nozzle at its end. At this time, a moving speed of the thermal spray gun along the axial direction into the cylinder bore is made equal-to or larger-than a predetermined value, and the number of reciprocating cycles of the thermal spray gun along the axial direction into the cylinder bore is made equal-to or larger-than a predetermined value.
摘要翻译： 通过使用热喷枪，在气缸体的气缸孔的内表面上形成喷镀涂层。 热喷枪在旋转时在气缸孔中沿轴向往复运动，并且在其末端从喷嘴喷射由铁质材料制成的线熔化而产生的熔融液滴。 此时，热喷枪沿着轴向移动到气缸孔中的移动速度等于或大于预定值，并且热喷枪沿着轴向的往复循环次数进入 气缸孔等于或大于预定值。
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公开(公告)号：US10339645B2
公开(公告)日：2019-07-02
申请号：US15720077
申请日：2017-09-29
发明人： Hirohisa Shibayama , Eiji Shiotani , Satoru Sakurai , Kiyokazu Sugiyama , Akira Shimizu , Daisuke Terada , Yoshitsugu Noshi , Yoshito Utsumi
IPC分类号： G06K9/00 , G06T7/00 , B24B33/02 , B23Q17/24 , G01B11/30 , G01B11/22 , G01N21/88 , G06T7/507 , B05B9/01 , B05B13/06 , G01N21/954 , G06T7/62
摘要： Provided is a defect detection device capable of measuring the volume of surface defects. The defect detection device includes: an imaging device configured to image an image of an inspection object; a binarization processing unit configured to subject the image to first and second binarization processing by use of different first and second binarization thresholds, so as to calculate first and second sizes for an identical defect in the image; a ratio calculation unit configured to calculate a first ratio of the second size to the first size; and a depth determination unit configured to determine a depth of the defect depending on the first ratio.
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公开(公告)号：US09797335B2
公开(公告)日：2017-10-24
申请号：US14367590
申请日：2012-11-05
发明人： Mitsuo Hayashi , Yoshiaki Miyamoto , Daisuke Terada , Eiji Shiotani , Yoshitsugu Noshi , Kazuaki Taniguchi , Takafumi Watanabe , Kiyokazu Sugiyama , Hirotaka Miwa
摘要： In a method for manufacturing a cylinder block provided with cylinder bores, the cylinder block is held by a clamp device, stress is generated in the cylinder block by a holding force of the clamp device to duplicate deformations of the cylinder bores after assembling hearing caps thereon, boring is carried out with the cylinder bores deformed in a condition where the stress is generated, and a thermally sprayed coating is formed, after the boring, on each inner surfaces of the cylinder bores deformed in the condition where the stress is generated. According to the method for manufacturing a cylinder block, superior cylindricity, after assembling the bearing caps, of the cylinder bores on each of which the thermally sprayed coating is formed can be brought, and workability degradation of finishing works (honing) for each inner surface of the cylinder bores (thermally sprayed coatings) can be restricted.
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公开(公告)号：US20170161886A1
公开(公告)日：2017-06-08
申请号：US15324250
申请日：2014-07-08
发明人： Hirohisa Shibayama , Eiji Shiotani , Satoru Sakurai , Kiyokazu Sugiyama , Akira Shimizu , Daisuke Terada , Yoshitsugu Noshi , Yoshito Utsumi
CPC分类号： G06T7/0004 , B05B9/01 , B05B13/06 , B23Q17/24 , B24B33/02 , G01B11/22 , G01B11/30 , G01N21/88 , G01N21/954 , G01N2021/9548 , G01N2201/10 , G01N2201/12 , G06T7/507 , G06T7/62 , G06T2207/30108 , G06T2207/30148
摘要： Provided is a defect detection device capable of measuring the volume of surface defects. The defect detection device includes: an imaging device configured to image an image of an inspection object; a binarization processing unit configured to subject the image to first and second binarization processing by use of different first and second binarization thresholds, so as to calculate first and second sizes for an identical defect in the image; a ratio calculation unit configured to calculate a first ratio of the second size to the first size; and a depth determination unit configured to determine a depth of the defect depending on the first ratio.
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公开(公告)号：US12024779B2
公开(公告)日：2024-07-02
申请号：US17598922
申请日：2019-03-29
发明人： Hirohisa Shibayama , Koukichi Kamada , Naoya Tainaka , Yoshito Utsumi , Hidenobu Matsuyama , Eiji Shiotani , Toshio Ogiya , Haruhiko Suzuki
CPC分类号： C23C24/04 , B22D19/0009 , B22D19/0081 , F02F1/00 , F02F2200/06
摘要： A film forming method forms a coating film on a workpiece having at least two film-deposited portions which are not continuous with each other by moving a nozzle of a cold spray device relative to each other along a continuous movement trajectory. The movement trajectory includes at least two trajectories corresponding to the film-deposited portions and a connecting trajectory linking the trajectories of the film-deposited portions. The film-deposited portions are formed by continuously spraying a raw material powder from the nozzle by cold spraying to form a coating film on each of the plurality of film-deposited portions. A turnback point of the spraying is set on the connecting trajectory where a relative speed between the workpiece and the nozzle decreases in the movement trajectory.
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