Abstract:
A method for forming a vehicular brake rotor involving loading a shaped metal substrate with a mixture of metal alloying components and ceramic particles in a dieheating the contents of the die while applying pressure to melt at least one of the metal components of the alloying mixture whereby to densify the contents of the die and form a ceramic particle-containing metal matrix composite coating on the metallic substrate; and cooling the resulting coated product.
Abstract:
A method for hardfacing a surface including: depositing a powder (68) having alloy particles onto a surface (70) of a substrate (66); rastering a laser beam (60) across the surface to melt the powder and to form a weld pool (78) having a width (64); directing particles (74) of a material exhibiting a different property than the substrate into the weld pool in a spray pattern having a width less than the width of the weld pool; and establishing the rastering and directing steps such that material circulation within the weld pool is effective to distribute the particles in the weld pool into a pattern having a width greater than the width of the spray pattern prior to re-solidification of the weld pool.
Abstract:
The invention refers to the method for regenerating and increasing durability of a mill roll, which is characterized in that lateral working surfaces (2) of a mill roll (1), having the width of 20 mm to 400 mm, are covered preferably by means of the laser cladding with a layer of metallic material (3) having the thickness of 0.1 to 4.0 mm, preferably 1.5 to 2.0 mm.
Abstract:
A known plunger for use in manufacturing glass containers comprises a first portion to contact with a gob of molten glass, and a second portion, whereby at least the first portion is coated with a metal coating of a self-fluxing alloy. Starting therefrom, to provide an improved,easy and cost-effective producible coated plunger for use in manufacturing glass containers with an improved wear, corrosion and thermal fatigue resistance and an increased lifetime, it is suggested according to the invention that the self-fluxing alloy is a Fe-based alloy containing at least 15wt. % Co, and whereby the micro hardness of the metal coating is in the range between 300 HV0.3 and 900 HV0.3, whereby the Fe-based alloy is an Iron –Cobalt –Chromium alloy comprising (in wt. %, balance = Fe) formula (I) whereby the Fe-based alloy may be further alloyed with additional metals selected from the group consisting of Al, Mn, Nb, S, Ti, V, Zn and Zr, whereby the individual amount of each of the additional metals ranges from 0.01 wt. % to about 2 wt. % and whereby the overall content of the additional metals is less than 10 wt. %.
Abstract:
The invention relates to a machine part (4) belonging to a sliding pair, having in at least the region of the side facing the machine part acting together therewith a wear-resistant structure (6) comprising relatively hard particles received in a metal matrix and having a rough and uneven surface, the production effort being reduced and good run-in behavior being achieved in that a run-in overlay (7) is applied to the wear-resistant structure (6) to smooth out the unevenness and roughness thereof, made of a run-in material suitable for wear during a run-in process, the material being different from the material of the wear-resistant structure (6) beneath it and being metallurgically bonded thereto, and being softer than the wear-resistant structure (6) and at most equally as wear-resistant as the sliding surface of the respectively opposite machine part.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Vorsehen einer Beschichtung auf einer Oberfläche eines Bauteils (Detail), wobei das Verfahren umfasst: die Schritte des Vorsehens eines ersten Pulvers auf der Oberfläche, des Erhitzens dieses ersten Pulvers durch Lichtbogenerhitzen, wodurch die erste Schicht gebildet wird, des Vorsehens eines zweiten Pulvers auf der ersten Schicht und des Erhitzens dieser zweiten Schicht durch Lichtbogenerhitzen, wodurch eine zweite Schicht gebildet wird, wobei das erste Pulver Nickel oder Nickel und Kobalt umfasst, wobei das zweite Pulver Nickel und Kobalt umfasst und wobei der Anteil an Kobalt im ersten Pulver niedriger als der Anteil an Kobalt im zweiten Pulver ist.
Abstract:
A method of balancing a coated rotating object (1) comprising forming at least one balancing zone (2), each balancing zone (2) providing an interface having corrosion properties being at least substantially identical to the corrosion properties of the coating material. The rotating object (1) is balanced by adding and/or removing material at position(s) corresponding to the balancing zone(s) (2). Thereby the corrosion properties provided by the coating are not compromised during balancing of the rotating object (1). Furthermore, a coated rotating object (1) having balancing zone(s) (2) is disclosed.
Abstract:
During armouring of a component suspectible to wear and tear, consisting of a metallic base material, with a wear-protection layer (2) comprising at least one layer (3) provided with ceramic particles (6) accommodated in a metallic matrix (7), a high bearing capacity is achieved and damage to the base material is prevented. Said matrix (7) is made of a material whose melting point is lower than the melting point of the base material (1).
Abstract:
A method for making wear resistant, ferrous based parts (10) by molding a uniform mixture of ferrous based powder and binder material into a compacted shape, heating the compacted shape to remove the binder and to partially sinter the mixture to a strength of 1000-8000 psi, while maintaining a porosity of 20-40 % at least along the outer region of the part, depositing a fluid suspension of wear resistant particles onto a surface zone of the shape, and heating the coated shape to bond the particles to the surface and fully sinter the part.