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61. 发明专利

JPH11209851A GAS TURBINE DISK MATERIAL 失效
公开(公告)号：JPH11209851A
公开(公告)日：1999-08-03
申请号：JP1444298
申请日：1998-01-27
申请人： MITSUBISHI HEAVY IND LTD , KOBE STEEL LTD
发明人： KAWAI HISATAKA , KADOYA YOSHIKUNI , TAKAHASHI KOJI , UMAGOE RYUTARO , YASUMOTO YASUHIKO , TSUCHIYAMA TOMOHIRO
IPC分类号： C22C38/00 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/54 , F01D5/28
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine disk material suitable for use at temps. ranging from ordinary temp. to >500 deg.C, so far impossible in the case of a gas turbine disk material composed of the conventional 12Cr-type heat resistant steel used for operation at about 400 deg.C because decreases toughness and high temp. creep characteristic occurs under operation at about 500 deg.C. SOLUTION: This gas turbine disk material has a composition which consists of, by weight, 0.05-0.15% C,

62. 发明专利

JPH04136134A HEAT-RESISTANT CAST ALLOY FOR GAS TURBINE 失效
公开(公告)号：JPH04136134A
公开(公告)日：1992-05-11
申请号：JP25515790
申请日：1990-09-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAI HISATAKA , OKADA IKUO , TAKAHASHI KOJI
IPC分类号： C22C19/07
摘要： PURPOSE:To obtain a heat-resistant cast alloy for a gas turbine high in high temp. strength and excellent in weldability as well as corrosion and oxidation resistances by specifying the compsn. constituted of Cr, Ni, W, Ta, Ti, Al, Se, C, B and Co. CONSTITUTION:This is a heat-resistant cast alloy for a gas turbine constituted of, by weight, 25 to 28% Cr, 8 to 12% Ni, 6 to 8% W, 1.5 to 2.5% Ta, 0.1 to 0.3% Ti, 0.2 to 0.5% Al, 0.5 to 2% Se, 0.3 to 0.45% C and 0.005 to 0.02% B, if required, constituted of 0.05 to 0.5% Zr and the balance Co with inevitable impurities. In this alloy, Co is used as a base, the amt. of C is regulated to a high one within the range where its weldability is not damaged, its precipitation hardening by the carbides of Ta, Ti and W as well as Cr, its solid soln. strengthening by W and its intergranular strengthening by B are attained and the improvement of its oxidation resistance is attained essentially by the addition of Cr and the addition of small amounts of Se and Al, by which the one having well-balanced characteristics in the points of objective high strength, corrosion and oxidation resistances and weldability can be obtd.

63. 发明专利

JPH0456741A NI-BASE HEAT RESISTANT ALLOY FOR SINGLE CRYSTAL 失效
公开(公告)号：JPH0456741A
公开(公告)日：1992-02-24
申请号：JP16790690
申请日：1990-06-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAI HISATAKA , OKADA IKUO , TSUJI ICHIRO
IPC分类号： C22C19/05
摘要： PURPOSE:To obtain an Ni-base heat resistant alloy for single crystals excellent in high temp. strength, high oxidation resistance and high corrosion resistance by adding specified amounts of Cr, Co, Mo, W, Al, Ti and Ta to Ni. CONSTITUTION:An Ni alloy as the material for high temp. parts such as the turbine moving and stationary blades of a gas turbine, the moving blade of a high temp. blower or the like having a compsn. constituted of, by weight, 15.0 to 17.0% Cr, 5.0 to 7.0% Co, 1.0 to 3.0% Mo, 2.5 to 4.5% W, 4.0 to 6.0% Al, 2.0 to 4.0% Ti, 2.0 to 4.0% Ta and the balance Ni is subjected to vacuum degassing treatment and is cast into a mold to manufacture a single crystal round bar. This round bar is subjected to soln. treatment and aging treatment to manufacture an Ni-base heat resistance alloy for single crystals.

64. 发明专利

JPS6166802A Turbine blade of gas turbine 失效
标题翻译：涡轮涡轮叶片
公开(公告)号：JPS6166802A
公开(公告)日：1986-04-05
申请号：JP18817284
申请日：1984-09-10
申请人： Mitsubishi Heavy Ind Ltd
发明人： TSUKAGOSHI KEIZO , MORII YOSHIYUKI , KAWAI HISATAKA
IPC分类号： F01D5/18 , F01D5/28 , F01D5/30 , F01D9/02 , F01D9/04
CPC分类号： F01D5/3084 , F01D9/042
摘要： PURPOSE:To prevent the captioned turbine blade from being fractured due to difference between internal expansions of inside and outside ceramic shrouds by inserting a ceramic turbine blade part between said shrouds via a filling material made of the same material, and clamping said members with a stay bolt which cooling air ventilates. CONSTITUTION:A ceramic blade part 10 is inserted between inside and outside ceramic shrouds 11, 12 via a ceramic filling material 13 Patches 15, 14 for inside and outside shrouds are arranged outside the respective shrouds 11, 12, between which patches a stay bolt 16 is inserted, and a projection end of the stay bolt is clamped with a nut 17 via a washer 18. In addition, a cooling air introduction hole 20 is drilled in the stay bolt 16b and communicated with a cooling air introduction through-hole 21. The through-hole 21 is communicated with a cooling air path 19 formed through the inside shroud patch 15 for permitting cooling air 22 to be made free to flow from an end of the stay bolt 17 having the introduction hole 20 formed therethrough.
摘要翻译：目的：为了防止标题的涡轮叶片由于内外陶瓷罩的内部膨胀之间的差异而被破坏，通过使用相同材料制成的填充材料将陶瓷涡轮叶片部分插入在所述护罩之间，并且以停留的方式夹紧所述构件螺栓，冷却空气通风。构成：陶瓷刀片部分10通过陶瓷填充材料13插入在内外陶瓷罩11,12之间。用于内部和外部护罩的补片15,14布置在各个护罩11,12的外侧，在它们之间贴有止动螺栓16 并且通过垫圈18将拉杆螺栓的突出端部与螺母17夹紧。此外，在拉杆螺栓16b中钻出冷却空气导入孔20，与冷却空气导入用通孔21连通。通孔21与通过内侧护罩片15形成的冷却风路19连通，使得冷却空气22能够从具有通过其形成的导入孔20的拉杆螺栓17的端部自由流动。

65. 发明专利

JPS60262643A CERAMIC HEAT-INSULATING MATERIAL 失效
公开(公告)号：JPS60262643A
公开(公告)日：1985-12-26
申请号：JP11818184
申请日：1984-06-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： NISHIDA TAKASHI , KAWAI HISATAKA , KOTOU HIROYUKI , ABE YOSHITO , SANO TAMOTSU
IPC分类号： B32B18/00

66. 发明专利

JPS60228676A TREATMENT FOR SMOOTHING SURFACE OF ROTOR AND STATOR VANES 失效
公开(公告)号：JPS60228676A
公开(公告)日：1985-11-13
申请号：JP8192384
申请日：1984-04-25
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAKAMORI MASAHARU , KAWAI HISATAKA , FUKUE ICHIROU , TSUKUDA YOSHIAKI
IPC分类号： C23C16/30 , C23C16/36
摘要： PURPOSE:To prevent sticking of foreign matter such as soot and dust on the surface of the rotor and stator vanes of an axial flow compressor or the like by forming a TiN-TiC layer on the vane surfaces by chemical vapor deposition under the same heat treating conditions as in the ordinary practice. CONSTITUTION:The rotor and stator vanes of the axial flow compressor consisting of, for example, a 12% Cr steel are cleaned for 3-10min according to the degree of contamination by an aq. 10-15% Na2CO3 soln. and are further cleaned by an alkali then washed. The vanes after washing are dried and are subjected to steam cleaning by a comercially marketed fluorine solvent. The cleaned vanes are then subjected to composite TiN-TiC coating to 10mum film thickness as target. The CVD conditions for TiN-TiC in this case are set at 900 deg.CX4hr. Gaseous N2 is sucked into the coating layer to cool the coated vanes down to about 100 deg.C, then the temp. in the vessel is increased to 650-750 deg.C and the vanes are subjected to a tempering treatment. The tempered vanes are cooled and the vane surfaces are lightly buffed to remove the deposits from the surface, by which the surfaces are finished.

67. 发明专利

JPS58110650A NI-BASE HEAT RESISTANT ALLOY 失效
公开(公告)号：JPS58110650A
公开(公告)日：1983-07-01
申请号：JP20779481
申请日：1981-12-22
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI METAL CORP
发明人： USUDA HIROSHI , TSUJI ICHIROU , KAWAI HISATAKA , ITOU HITOMI , YUGE MAKOTO , TAKEIRI TOSHIKI , SAHIRA TATEAKI , KOJIMA TOSHIO
IPC分类号： C22C19/05
摘要： PURPOSE:To provide an Ni-based heat resistant alloy of solid soln. hardening type having excellent hot and cold workability, high tensile strength and fatigue strength at high temp. and excellent oxidation resistance by consisting the alloy of specific compsn. of C, Ca, Cr, Co, Mo, W, Al, Ti and Ni. CONSTITUTION:A titled alloy is an Ni-based heat resistant alloy having the compsn. contg. 0.001-0.15wt% C, 0.0005-0.05% Ca, 20.0-26.0% Cr, 4.7-9.4% Co, 5.0-16.0% Mo, 0.5-4.0% W, 0.3-1.5% Al, 0.1-1.0% Ti (where 9.0-16.5% Mo + W), and further 1 or 2 kind 0.001-0.15% Y and 0.001-0.15% rare earth elements and/or 0.01-1.0% >=1 kind among Nb, V, and Ta, and consisting of the balance unavoidable impurities. Said alloy is obtained by preparing molten metal having the above-mentioned component compsn., in a vacuum melting furnace, casting the molten metal to ingots, and subjecting the ingots to hot forging and hot and cold rolling followed by solutionizing treatment.

68. 发明专利

JPS5818432B2 失效
公开(公告)号：JPS5818432B2
公开(公告)日：1983-04-13
申请号：JP1848676
申请日：1976-02-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： TSUJI ICHIRO , KAWAI HISATAKA
IPC分类号： C23C10/02 , C21D6/00 , C22F1/00

69. 发明专利

JPS57143462A HEAT RESISTANT NI ALLOY 失效
公开(公告)号：JPS57143462A
公开(公告)日：1982-09-04
申请号：JP2967881
申请日：1981-03-02
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI METAL CORP
发明人： USUDA HIROSHI , TSUJI ICHIROU , KAWAI HISATAKA , ITOU AKI , YUGE MAKOTO , TAKEIRI TOSHIKI , SAHIRA TATEAKI , KOJIMA TOSHIO
IPC分类号： C22C19/05
摘要： PURPOSE:To obtain a solubilization hardening type heat resistant Ni alloy with superior cold workability, high tensile strength at high timp., high fatigue strength and superior oxidation resistance by specifying the percentages of C, Ca, Cr, Co, Mo and W in Ni. CONSTITUTION:This alloy consists of, by weight, 0.001-0.15% C, 0.0005-0.05% Ca, 20.0-26.0% Cr, 4.7-9.4% Co, 5.0-16.0% Mo, 0.5-4.0% W (Mo+W=9.0- 16.5%) and the balance Ni with inevitable impurities or further contains 0.001- 0.15% each of Y and/or a rare earth element, and/or 0.01-1.0% one or more among Nb, V and Ta. By combinedly adding Mo and W to Ni-Cr with superior oxidation resistance and workability, the strength at high temp. is enhanced, and the total amount of Mo and W is regulated not to deteriorate the cold workability. Ca improves the characteristics at high temp. and extends the upper limit of the Mo and W content. Co can increase the strength at high temp. without deteriorating the cold workability.

70. 发明专利

JPS56127744A NICKEL-CHROMIUM-IRON HEAT RESISTANT ALLOY 失效
公开(公告)号：JPS56127744A
公开(公告)日：1981-10-06
申请号：JP2811680
申请日：1980-03-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAI HISATAKA
IPC分类号： C22C19/05 , C22C33/02 , C22C38/00 , C22C38/50
摘要： PURPOSE:To provide the Ni-Cr-Fe alloy with excellent oxidation resistance and corrosion resistance at a high temp. of 900 deg.C or more wherein C, Ni, Cr, Al, Ti, Y, Si, Mn are contained in a predetermined ratio respectively and a content of P, S and Cu is limited. CONSTITUTION:The Ni-Cr-Fe alloy consists of, in a wt% basis, 40.0-45.0 Ni, 0.15-0.60 Cr, 0.75-1.5 Al, 0.15-0.60 Ti, 0.75-1.50 Y, 0.75-2.0 Si, 0.50- 1.50 Mn and the remainder of Fe. Further, it is a necessary condition that P in said alloy is limited, in a wt% basis, to 0.03% or less, S to 0.015% or less and Cu to 0.75% or less respectively. Said Ni-Cr-Fe alloy has good thin plate workability and weldability other than above described properties.

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