Abstract:
저항 용접용 전극 및 그의 제조 방법에 관한 것이다. 본 발명의 일 실시예에 의한 저항 용접용 전극은 금속 기재 및 금속 기재의 표면 상에 10 내지 200 μ m의 두깨로 형성된 코팅층을 포함하고, 코팅층은 WC를 70 중량% 이상 및 100중량% 미만 및 잔부로 Co, Ni, Cu, Cr 또는 이들의 합금을 포함한다.
Abstract:
A component for exposure to a combustion chamber of a diesel engine and/or exhaust gas, such as a cylinder liner or valve face, is provided. The component Includes a thermal barrier coating applied to a body portion formed of steel. A layer of a metal bond material is first applied, fallowed by a gradient structure including a mixture of the metal bond material and a ceramic material, followed by a layer of the ceramic material. The ceramic material includes at least one of ceria, ceria stabilised zirconia, yttria stabilised zirconia, calcia stabilized zirconia, magnesia stabilised zirconia, and zirconia stabilized by another oxide. The thermal barrier coating is applied by thermal spray or HVOF. The thermal barrier coating has a porosity of 2% by vol. to 25% vol., a thickness of less than 1 mm, and a thermal conductivity of less than 1.00 W/m.K.
Abstract:
Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/ cm2 and 5 billion cm2.
Abstract:
The invention relates to a blade for creping a paper web from a Yankee cylinder surface, said blade comprising a steel substrate having a thickness of 0.7 mm -2 mm, the steel substrate is covered by a cermet coating that forms a working edge adapted for contact with said surface and a web impact area upon which the web impacts during crêping, wherein the cermet coating comprises chromium carbides and tungsten carbides in a nickel based metal matrix and wherein the cermet coating has a porosity of 1100 HV0.3.
Abstract:
A coating and surface repair method is provided. The method includes positioning a high velocity air fuel (HVAF) gun proximate to a damaged hardened steel surface and forming a ceramic metallic coating on the damaged hardened steel surface by executing an HVAF thermal spray process using the HVAF gun.
Abstract:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur metallischen Beschichtung eines Werkstückes mit einer verfahrbaren Beschichtungslanze (20), durch welche ein Metall-Plasmastrahl zum Bilden der Beschichtung aus Metallpartikeln erzeugbar ist. Nach der Erfindung ist eine Absaugglocke (30) vorgesehen, welche zumindest einen axialen Abschnitt der Beschichtungslanze (20) ringförmig umgibt und die Absaugglocke (30) eine ringförmige Aufnahmeeinheit (50) aufweist, welche zum Anlagern von Metallpartikeln ausgebildet ist.
Abstract:
A coating and surface repair method is provided. The method includes positioning a high velocity air fuel (HVAF) gun proximate to a damaged hardened steel surface and forming a ceramic metallic coating on the damaged hardened steel surface by executing an HVAF thermal spray process using the HVAF gun.