摘要:
The invention relates to a spray material on an iron base for the thermal coating of a substrate, in particular for the thermal coating of a running surface of a cylinder of a reciprocating combustion engine, wherein the spray material includes FeTiO3 as a base material. In accordance with the invention, the spray material includes at least one first solid lubricant composed of a sulfide and one second solid lubricant composed of a fluoride. The invention further relates to a method for manufacturing a spray material, to a spray wire, in particular a spray filler wire for use in a thermal wire spraying method, to a thermal spray layer on an iron base, in particular for a running surface of a cylinder of a reciprocating combustion engine, to a spraying method for manufacturing a thermal spray layer, as well as to the use of a powder material and of a spray wire for manufacturing a thermal spray layer.
摘要:
An apparatus for and a method of prepping a surface of a cylinder bore using a pulsed waterjet entails generating a signal having a frequency f using a signal generator, applying the signal to generate a pulsed waterjet through an exit orifice of a nozzle having an exit orifice diameter d and a length L. The pulsed waterjet prepares the surface to within a predetermined range of surface roughness. The surface roughness is determined by selecting operating parameters comprising a standoff distance (SD), a traverse velocity VTR of the nozzle, a water pressure P, a water flow rate Q, a length-to-diameter (L/d) ratio, the frequency f, and an amplitude A of the signal.
摘要:
A merchandise display case has a housing having a plurality of housing walls forming an access opening, a roller-type cover shiftable between an extended closed position extending across and substantially closing the opening and a retracted open position generally clear of the opening, and a seal engaged between the cover and at least one respective wall of the housing. The cover has a pair of opposite side edges and an end edge bridging the side edges. The seal is engaged with at least one of the edges.
摘要:
In accordance with the invention a method for the manufacture of an erosion protection layer on a metallic substrate is proposed in which a material is welded onto the metallic substrate (2, 2′). The material is a steel which contains at least 0.1% carbon and at least 12% chrome. The material is applied to the substrate (2, 2′) by laser deposition welding. A component (1, 1′) is further proposed by the invention with a metallic substrate (2, 2′) and an erosion protection layer (3, 3′) applied on the substrate (2, 2′), wherein the erosion protection layer (3, 3′) is manufactured using a method in accordance with the invention.
摘要:
A sales rack for accommodating goods such as foods presented in open containers, such as fruits, vegetables, etc. The sales rack has a base and a goods support surface that is adjustable relative to the base. The goods support surface is equipped with at least one holder element which can be optionally affixed, and over which the goods, i.e. the containers can pass when they are put into place, to fix the goods in place in the slanted position of the goods support surface.
摘要:
A sales rack for accommodating goods such as foods presented in open containers, such as fruits, vegetables, etc. The sales rack has a base and a goods support surface that is adjustable relative to the base. The goods support surface is equipped with at least one holder element which can be optionally affixed, and over which the goods, i.e. the containers can pass when they are put into place, to fix the goods in place in the slanted position of the goods support surface.
摘要:
The invention relates to a martensitic-hardenable heat-treated steel, having the following composition (data in % by weight): 9 to 13% Cr, 0.001 to 0.25% Mn, 2 to 7% Ni, 0.001 to 8% Co, at least one of W and Mo in total between 0.5 and 4%, 0.5 to 0.8% V, at least one of Nb, Ta, Zr and Hf in total between 0.001 and 0.1%, 0.001 to 0.05% Ti, 0.001 to 0.15% Si, 0.01 to 0.1% C, 0.12 to 0.18% N, at most 0.025% P, at most 0.015% S, at most 0.01% Al, at most 0.0012% Sb, at most 0.007% Sn, at most 0.012% As, remainder iron and customary impurities, and the proviso that the ratio by weight of vanadium to nitrogen V/N lies in the range between 3.5 and 4.2. After solution annealing at 1050 to 1250° C., cooling to a temperature below 300° C., tempering treatment, partial or complete reaustenitization at 600 to 900° C., cooling to a temperature below 300° C. and annealing at a temperature from 550 to 650° C., it has a high resistance to heat combined, at the same time, with a high ductility.
摘要:
A thermally highly loaded casting is produced. The casting mold is produced from a slurry using a wax model and a polymer foam which is fixed to the wax model or has been introduced into a cavity. In this way, during the casting process the liquid superalloy also penetrates into the open-cell structure of the casting mold, so that an integral cooling structure is formed during the solidification of the casting. A single-crystal or directionally solidified casting is advantageously produced. It is also conceivable to vary the cell size of the polymer foam, to produce a cooling structure and a base material separately, and to coat the cooling structure with a ceramic protective layer (thermal barrier coating).
摘要:
An apparatus for inserting transport anchors into a form for concrete parts comprises a magazine for feeding the anchors, and a gripper for removing anchors from the magazine and inserting the removed anchors into the form. The magazine orients a target anchor vertically, and jaws of the gripper close upon an end of the target anchor. The gripper is then rotated ninety degrees about a horizontal axis whereby the target anchor is removed from the magazine and reoriented to a horizontal position pointing toward the form. The gripper is then advanced transversely of the axis of insert the anchor into the form.