会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 34. 发明专利
    • MANUFACTURE OF TOUGH CASE-HARDENING STEEL PARTS
    • JPH01201423A
    • 1989-08-14
    • JP2592588
    • 1988-02-05
    • TOYOTA CENTRAL RES & DEV
    • TANAKA TOSHIAKIMATSUI MUNEHISADANNO ATSUSHISAWAMURA MASATOSHI
    • C23C8/22B21J5/00C21D8/00C23F17/00
    • PURPOSE:To manufacture tough case-hardening steel parts by subjecting a steel stock to carburizing treatment, to hot or warm plastic working, further to reheating, and then to quench-and-temper treatment. CONSTITUTION:Carburizing treatment is applied to a low-alloy steel stock for carburizing to form the stock surface into high-carbon matrix structure, and then heating is applied to the above to austenitize the structure of the carburized layer. Subsequently, a part including the austenitized region is subjected to hot plastic working, such as form rolling and forging, and then to warm plastic working at a temp. in the region where the structure is composed of metastable austenite, ferrite, and pearlite or of semistable austenite and pearlite to undergo precision forming into the desired final shape, which is cooled down to a temp. where the structure is transformed into pearlite or ferrite or below prior to the following treatment. Then, rapid heating is applied to the above up to a temp. right above the austenitic temp. to austenitize the structure and, successively, quench-and-temper treatment is applied to the above, by which the highly wear-resistant case-hardening steel parts having a carburized and hardened layer of high-hardness and extremely fine austenite crystalline grains and excellent in toughness can be manufactured.
    • 35. 发明专利
    • Connecting rod of internal-combustion engine and manufacture thereof
    • 内燃机连杆及其制造
    • JPS5977117A
    • 1984-05-02
    • JP18625782
    • 1982-10-22
    • Toyota Central Res & Dev Lab Inc
    • TAKAHASHI HIDEOKURAUCHI NORIODANNO ATSUSHI
    • B22D19/14F16C7/00
    • F16C7/026
    • PURPOSE:To reduce the weight of a connecting rod and to improve the mechanical strength by manufacturing a cylindrical pin member made of fiber reinforcing composite material, a shaft member and a tensile portion for convering the outer peripheral surfaces of both members in a filament method, and uniting the compression portion between both members manufactured separately with adhesives. CONSTITUTION:A connecting rod is formed by fixing a compression portion between a pin member 1 and a shaft member 2 with adhesives and by winding a tensile portion 4 round the peripheries of both members in a filament method thereby to units both members in one body. Though tensile stress works upon the pin member 1 and the shaft member 2, carbon long fibers are peripherally orientated and buried in both members to receive the tensile stress in the axial direction of the carbon fibers, so that both members have sufficient strength. The compression portion 5 copes with compressive stress produced between both members. As the compression portion 5 has a three- dimensional structure of a central tube 51 and a plate piece 52, it provides structural strength for torsional stress as well as compressive stress. The weight of the thus constructed connecting rod is one-third of that made of metal.
    • 目的:为了减少连杆的重量,通过制造由纤维增强复合材料制成的圆柱形销构件,轴构件和用于使丝网方式的两个构件的外周面会聚的拉伸部来提高机械强度, 并且将两个构件之间的压缩部分与粘合剂分开地结合在一起。 构成:通过使用粘合剂将销部件1和轴部件2之间的压缩部分固定在一起,并且以两个部件的周边缠绕在一起的两个部件的周围的拉伸部分4形成一个连杆,从而将一个部件的两个部件分开。 尽管拉伸应力作用在销构件1和轴构件2上,但是碳长纤维被周向定向并埋设在两个构件中,以在碳纤维的轴向方向上承受拉伸应力,使得两个构件具有足够的强度。 压缩部分5处理在两个构件之间产生的压缩应力。 由于压缩部分5具有中心管51和板件52的三维结构,所以它提供扭转应力以及压缩应力的结构强度。 这样构造的连杆的重量是金属制造的三分之一。