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    • 2. 发明授权
    • Thermally sprayed titanium diboride composite coatings
    • 热喷涂二硼化钛复合涂层
    • US5837326A
    • 1998-11-17
    • US630445
    • 1996-04-10
    • Serge DallaireHenri L. Levert
    • Serge DallaireHenri L. Levert
    • C23C4/06C23C4/10C23C4/16
    • C23C4/06
    • Abrasion-wear resistant thermal sprayed stainless steel based coatings are disclosed, particularly arc sprayed stainless steel coatings containing titanium diboride crystals which impart hardness to the soft stainless steel matrix and enhance their resistance to hard abrasive media. There is also disclosed a process for making core wires composed of stainless steel sheaths and cores composed of a mixture of titanium diboride, stainless steel and certain additives. During the thermal spraying operation, the stainless steel sheath and the core material melt to form a composite coating containing fine hard titanium boride crystals dispersed within stainless steel. The arc sprayed stainless steel based coatings are more resistant to abrasion wear than solid pieces of type 304 stainless steel and other arc-sprayed stainless steel-based coatings available on the market. Although reference is made mainly to the arc spraying process, the core wires are suitable for other thermal spraying processes that use wires as the feed material, for instance combustion and arc-plasma spraying and weld overlay surfacing techniques.
    • 公开了耐磨耗热喷涂不锈钢基涂层,特别是包含二硼化钛晶体的电弧喷涂不锈钢涂层,其赋予软不锈钢基体硬度并增强其对硬磨料介质的耐性。 还公开了一种制造由不锈钢护套组成的芯线和由二硼化钛,不锈钢和某些添加剂的混合物构成的芯的方法。 在热喷涂操作期间,不锈钢护套和芯材熔化形成复合涂层,其中含有分散在不锈钢内的细硬质硼化钛晶体。 电弧喷涂的不锈钢基涂层比市场上可获得的类型304不锈钢和其他电弧喷涂不锈钢基涂层的固体片更耐磨损。 尽管主要涉及电弧喷涂工艺,但芯线适用于使用电线作为进料的其他热喷涂工艺,例如燃烧和电弧等离子体喷涂和焊接覆盖表面技术。
    • 3. 发明授权
    • Process and apparatus for coating particles with fine powder
    • 用细粉末涂覆颗粒的方法和设备
    • US4788080A
    • 1988-11-29
    • US42715
    • 1987-04-27
    • Junichi HojoSerge DallaireBlaise Champagne
    • Junichi HojoSerge DallaireBlaise Champagne
    • B01J2/00B05D1/00B05D7/00B22F1/02C04B41/45C04B41/81B05D7/24
    • C04B41/009B01J2/006B05D1/00B05D7/00B22F1/02C04B41/4584C04B41/81B05D2258/00
    • There is disclosed a process for coating particles, such as ceramic, metallic and organic cores, with fine powder, such as ceramic, metal, organic or carbon powder. The process comprises providing a mixture comprising the particles and a binder which is capable of slowly melting to viscous state. Then the mixture is tumbled while slowly heating it to enable the binder to reach the viscous state while allowing the particles to be substantially covered with the binder. The next step includes cooling the mixture to about room temperature and thereafter breaking up the particles that may have agglomerated during the tumbling and heating to give individual particles covered with the binder. As a final step, the fine powder is added to the individual binder covered particles and the mixture is tumbled and heated again to the viscous state under conditions effective to provide a coating of the fine powder on the particles. Additional heating may be carried out to remove the binder and leave particles exclusively coated with the fine powder. The apparatus includes a rotating cylinder, heating and cooling means. The resulting product has a more uniform microstructure and higher bonding strength than a product resulting from a conventional mixing of ingredients.
    • 公开了用微细粉末如陶瓷,金属,有机或碳粉末涂覆诸如陶瓷,金属和有机芯的颗粒的方法。 该方法包括提供包含颗粒的混合物和能够缓慢熔化成粘性状态的粘合剂。 然后混合物翻滚,同时缓慢加热,使粘合剂达到粘性状态,同时允许颗粒基本上被粘合剂覆盖。 下一步骤包括将混合物冷却至约室温,然后分解在翻滚和加热期间可能发生团聚的颗粒,从而得到用粘合剂覆盖的单个颗粒。 作为最终步骤,将细粉末加入到单个粘合剂覆盖的颗粒中,并且在有效地在颗粒上提供细粉末涂层的条件下,将混合物翻转并再次加热至粘性状态。 可以进行另外的加热以除去粘合剂并且留下仅涂覆有细粉末的颗粒。 该装置包括旋转圆筒,加热和冷却装置。 所得到的产品具有比由常规的成分混合产生的产品更均匀的微观结构和更高的粘结强度。
    • 7. 发明授权
    • Anti-oxidant barrier for carbon based material
    • 碳基材料的抗氧化屏障
    • US4824733A
    • 1989-04-25
    • US41447
    • 1987-04-23
    • Serge Dallaire
    • Serge Dallaire
    • H05B7/085H05B7/12H05B7/06
    • H05B7/085H05B7/12Y10T428/12049Y10T428/12146
    • There is described a coating providing an anti-oxidant barrier for carbon based material against oxidation at high temperature (temperature higher than 500.degree. C.), more particularly for graphite electrodes used in electric arc furnaces. The coating comprises at least a first layer of metallic titanium or titanium alloy which is applied directly on the carbon-based material, e.g. graphite, and a second layer which comprises a mixture of silicon carbide and aluminum alloy, the second layer being applied on the first layer. This coating substantially extends the life of the carbon-based material. There is also disclosed a method of producing this coating by applying the two layers onto a carbon-based material such as graphite.
    • 描述了一种在高温(高于500℃的温度)下对碳基材料提供抗氧化屏障以防氧化的涂层,更特别是用于电弧炉中的石墨电极。 该涂层包括至少第一层金属钛或钛合金,其直接施加在碳基材料上,例如, 石墨和包含碳化硅和铝合金的混合物的第二层,第二层被施加在第一层上。 该涂层基本上延长了碳基材料的寿命。 还公开了通过将这两层施加到诸如石墨的碳基材料上来生产该涂层的方法。
    • 8. 发明授权
    • Laser-surface coupler
    • 激光表面耦合器
    • US4480168A
    • 1984-10-30
    • US363301
    • 1982-03-29
    • Paolo G. CieloSerge Dallaire
    • Paolo G. CieloSerge Dallaire
    • B23K26/06B23K27/00
    • B23K26/0665B23K26/06B23K26/064B23K26/0643B23K26/0648
    • The laser-surface coupler is used to uniformly irradiate a well defined surface area with a laser beam. The coupler includes a lower masking section and an upper section to form a cavity. The masking section has inner surfaces which are highly reflective and lustrous, and an aperture to define the surface area to be irradiated. The upper section has an opening to receive the laser beam into the cavity, and a highly reflective and diffuse inner surface to reflect and diffuse any radiation reflected to it from the irradiated surface. The coupler recycles any reflected radiation from the laser beam increasing the absorption coefficient and the irradiated surface is precisely defined by the masking section without loss of energy.
    • 激光表面耦合器用于用激光束均匀地照射良好限定的表面区域。 耦合器包括下掩蔽部分和上部部分以形成空腔。 掩模部分具有高反射和光泽的内表面,以及限定待照射表面积的孔。 上部具有用于将激光束接收到空腔中的开口,以及高反射和漫反射的内表面,以反射和扩散从辐射表面反射到其上的任何辐射。 耦合器回收来自激光束的任何反射的辐射,增加吸收系数,并且被照射的表面由掩蔽部分精确地限定而不损失能量。