Electrochemical hardness modification of non-allotropic metal surfaces
    21.
    发明公开
    Electrochemical hardness modification of non-allotropic metal surfaces 失效
    Elektrochemisches Verfahren zur Modifizierung derOberflächenhärteeines nichtallotropischen Metalls

    公开(公告)号:EP0753598A1

    公开(公告)日:1997-01-15

    申请号:EP96304910.1

    申请日:1996-07-03

    Abstract: An electrochemical method of modifying the surface hardness of a non-allotropic metal member 10, comprising: (a) forming the member to near net-shape with at least one surface 12 to be hardened; (b) subjecting the surface 12 to rapid melting and resolidification by incidence of an electrical discharge between an electrode 16 and the surface 12 closely spaced thereto, the spacing containing an electrolyte with plasma forming capability, the surface 12 being hardened by crystallographic change of the globules resulting from substitutional alloying; and (c) cropping the surface grains 29 of the surface to increase load bearing capacity while retaining liquid retention capacity.
    The invention, in another aspect, is a unitary aluminium based swashplate member useful in a compressor, comprising: (a) a plate drivingly rotatable about an axis through its centre but canted to the plane of the plate; (b) integral shoulders on opposite sides of the plate, each presenting a thrust surface for receiving a plurality of rolling bearing loads, the thrust surfaces being centred about such axis and being in a plane normal to such axis; and (c) each thrust surface having (i) a hardness enhanced thermochemically by electric discharge to a depth of 100 Mm, and (ii) a surface hardness of 1.5 MmRa or less, the thrust surfaces being effective to substantially reduce the cost of swashplate fabrication and reduce load bearing failures.

    Abstract translation: 一种改变非同质异形金属构件10的表面硬度的电化学方法,包括:(a)将所述构件形成为接近网状的至少一个要被硬化的表面12; (b)通过电极16和紧密间隔的表面12之间的放电进入表面12进行快速熔化和再凝固,该间隔包含具有等离子体形成能力的电解质,表面12通过晶体学变化而硬化 由替代合金化产生的球; 和(c)切割表面的表面颗粒29以增加承载能力同时保持液体保持能力。 在另一方面,本发明是一种可用于压缩机的整体铝基斜盘构件,包括:(a)能够围绕其中心的轴线驱动旋转的板,但是可旋转到板的平面; (b)在板的相对两侧形成一体的肩部,每个都具有用于接收多个滚动轴承负载的推力表面,推力表面围绕该轴线居中并且处于与该轴线垂直的平面中; 和(c)每个推力表面具有(i)通过放电至100Mm的热放电热硬化的硬度,和(ii)1.5MmRa或更小的表面硬度,所述推力表面有效地大大降低了斜盘的成本 制造和减少承重故障。

    AXIALKOLBENMASCHINE
    30.
    发明公开
    AXIALKOLBENMASCHINE 审中-公开

    公开(公告)号:EP1038104A1

    公开(公告)日:2000-09-27

    申请号:EP98955834.1

    申请日:1998-12-07

    Abstract: The invention relates to an axial piston engine comprising an inclined disc (13), sliding shoes (9, 10) with step bearings (25), as well as a lower retainer ring (18) and a ring (16) placed on the motor shaft (1) and having a curved outer surface in contact with the inner surface of the lower retainer ring (18). The bearings (19-21) of the lower retainer ring (18) are provided with a lubricant agent, at least in the contact region with the motor shaft (1).

    Abstract translation: 本发明涉及一种轴向活塞发动机,该轴向活塞发动机包括倾斜盘(13),具有梯级轴承(25)的滑动靴(9,10)以及置于马达上的下部保持环(18)和环(16) 轴(1)并具有与下部保持器环(18)的内表面接触的弯曲外表面。 下卡环(18)的轴承(19-21)至少在与马达轴(1)接触的区域内设有润滑剂。

Patent Agency Ranking