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    • 2. 发明授权
    • Sintered mechanical part with abrasionproof surface and method for producing same
    • 具有耐磨表面的烧结机械部件及其制造方法
    • US06623876B1
    • 2003-09-23
    • US09424586
    • 1999-11-24
    • Paul Caron
    • Paul Caron
    • B32B900
    • C23C26/02C23C24/10Y10T428/252
    • The invention concerns a mechanical part with abrasionproof surface characterized in that it comprises a sintered metallic body obtained from metallic powders and a laser-deposited cermet coating. The coating has a certain thickness whereof a portion is metallurgically bound with the metallic body. The laser deposit enables the sintered part to be surface-melted under the effect of the laser beam. The surface of the sintered part to be coated is therefore fused over a thickness ranging between 10 &mgr;m and 1 mm, which enables the surface pores to be closed, as is characteristic of sintered parts, thereby increasing its resistance to shocks. Moreover, the small surface coated at a given moment by the laser enables the self-hardening of the exposed part, following the beam displacement, by the heat-sink effect of the surrounding metallic volume. The resulting coating also has very low porosity owing to the complete fusion of the powders by laser.
    • 本发明涉及具有耐磨表面的机械部件,其特征在于,其包括由金属粉末和激光沉积金属陶瓷涂层获得的烧结金属体。 涂层具有一定厚度,其中一部分与金属体冶金结合。 激光沉积使得烧结部分在激光束的作用下被表面熔化。 因此,要被涂覆的烧结部件的表面在10um和1mm之间的厚度上熔合,这使得表面孔可以被封闭,如烧结部件的特征,从而增加其抗冲击性。 此外,通过激光在给定时刻涂覆的小表面能够通过周围金属体积的散热效应使光束位移之后的暴露部分自身硬化。 由于粉末通过激光的完全融合,所得到的涂层也具有非常低的孔隙率。
    • 7. 发明申请
    • Method for treating tungsten carbide particles
    • 碳化钨颗粒的处理方法
    • US20060127269A1
    • 2006-06-15
    • US10550701
    • 2004-03-15
    • Paul Caron
    • Paul Caron
    • C22C27/04C22C29/08
    • C01B32/949
    • A method for the treatment of tungsten carbide is provided. The starting material contains tungsten carbide particles of a W—C system represented on a phase diagram showing a monophasic domain of a γ phase having a face-centered cubic structure, upwardly delimited by a liquidus line. The particles are subjected to a homogenization treatment in the monophasic domain, and may be subsequently melted to be spheroidized. They are then quenched to freeze at ambient temperature the monophased structure. Optionally, at least one alloying element may be added to the starting material to enlarge the monophasic domain, thereby increasing the hardenability of the monophased particles.
    • 提供了一种用于处理碳化钨的方法。 起始材料包含W-C系统的碳化钨颗粒,在相图上表示,显示由液相线向上界定的具有面心立方结构的γ相的单相区域。 颗粒在单相区域进行均质处理,随后可以熔化成球化。 然后将它们淬灭以在环境温度下冻结单相结构。 任选地,可以将至少一种合金元素添加到原料中以扩大单相结构域,从而提高单相颗粒的淬透性。
    • 8. 发明授权
    • Passive armor for protection against shaped charges
    • 被动装甲,以防止成型收费
    • US06581504B2
    • 2003-06-24
    • US10017363
    • 2001-12-14
    • Paul Caron
    • Paul Caron
    • F41H502
    • F41H5/0492
    • A passive armour for protection against shaped charges, comprising a rigid enclosure or body filled with hollow microspheres made of a material having a density greater than 7 g/cm3 and hardness at least equal to Rockwell A 83.4(equal to 64 RC and 800 Vickers). The armour can be made integral to a basic armour element or it could be an add-on to a basic armour plate. It can be used for the protection of an enclosure selected from the group consisting of land vehicles such as battle tanks, armoured personnel carriers and armoured fighting vehicles; static structures and aircrafts.
    • 用于防止成形电荷的被动装甲,包括刚性外壳或充满空心微球的主体,该中空微球由密度大于7g / cm 3的材料制成,硬度至少等于Rockwell A 83.4(等于64 RC和800维氏) 。 装甲可以作为一个基本的装甲元素,或者它可以是一个基本装甲板的附加物。 它可以用于保护选自由战车,装甲运兵车和装甲车等陆上车辆组成的组的机柜; 静态结构和飞机。
    • 9. 发明授权
    • Multi-head wide-format thermal plotter
    • 多头宽格式热绘图仪
    • US5589868A
    • 1996-12-31
    • US391048
    • 1995-02-21
    • Harry SchofieldPaul CaronGary FieldPaul Follett
    • Harry SchofieldPaul CaronGary FieldPaul Follett
    • B41J2/32B41J3/28B41J3/54
    • B41J2/32B41J3/28B41J3/54
    • A wide-format thermal plotting apparatus includes a single platen roller and a plurality of thermal print heads arranged in first and second diametrically opposed rows on the platen roller, the second row having at least one more print head than the first row. More specifically, the rows are arranged in upper and lower opposed relation so that the first, or lower row supports the force applied by the upper row plus the weight of the platen roller, thereby preventing bowing thereof. A supply of print media is sequentially threaded through the first and second rows of print heads, wrapping around the platen roller so that the second or upper row is the downstream printing row. The print heads are arranged in alternating relation between the rows such that print lines of print heads in alternate rows abut or overlap each other with respect to the width of print media. Each print head is mounted for pressured engagement with the platen roller, the print heads in the second row being adjusted to have a greater engagement pressure than the print heads in the first row. The platen roller is driven so that the print media is sequentially drawn through the first and second rows of print heads. The higher number of print heads in the second, downstream row and the increased engagement pressure thereof ensures that the print media remains in contact with the platen roller during printing.
    • 宽格式热绘图装置包括单个压印辊和布置在压纸辊上的第一和第二直径相对的行中的多个热打印头,第二行具有比第一行至少多一个打印头。 更具体地,行被布置成上下相对的关系,使得第一或下行支撑由上排施加的力加上压纸辊的重量,从而防止其弯曲。 供应的打印介质依次穿过第一和第二排打印头,围绕压纸辊缠绕,使得第二或上排是下游印刷行。 打印头在行之间以交替的关系布置,使得交替行中的打印头的打印线相对于打印介质的宽度彼此邻接或重叠。 每个打印头被安装成与压纸辊压力接合,第二排中的打印头被调节成具有比第一行中的打印头更大的接合压力。 驱动压纸辊,使得打印介质顺序地通过第一排和第二排打印头。 第二,下游排中较多数量的打印头和增加的接合压力确保在打印期间打印介质保持与压纸辊接触。