Tunable multi-layer thermoplastic polymer sealants and tunable two-layer conductive thermoplastic polymer sealants, and substrates and assemblies comprising the tunable multi-layer sealants; and edge seals and fillet seals produced comprising such sealants; and substrates, components and objects comprising the tunable edge seals and fillet seals, and methods for making and applying such edge seals and fillet seals are disclosed.

Engine blocks and methods of forming the same are disclosed. The engine block may comprise a body including at least one cylindrical engine bore wall having a longitudinal axis and including a coating extending along the longitudinal axis and having a coating thickness. The coating may have a middle region and first and second end regions, and a plurality of pores may be dispersed within the coating thickness. The middle region may have a different average porosity than one or both of the end regions. The method may include spraying a first porosity coating in a middle longitudinal region of the bore and spraying a second porosity coating in one or more end regions of the bore. The first porosity may be greater than the second porosity and the first and second porosities may be formed during the spraying steps. The pores may act as wells for lubricant.

Engine blocks and methods of forming the same are disclosed. The engine block may comprise a body including at least one cylindrical engine bore wall having a longitudinal axis and including a coating extending along the longitudinal axis and having a coating thickness. The coating may have a middle region and first and second end regions, and a plurality of pores may be dispersed within the coating thickness. The middle region may have a different average porosity than one or both of the end regions. The method may include spraying a first porosity coating in a middle longitudinal region of the bore and spraying a second porosity coating in one or more end regions of the bore. The first porosity may be greater than the second porosity and the first and second porosities may be formed during the spraying steps. The pores may act as wells for lubricant.

The present disclosure provides a heating system for performing thermal spray coating. The heating system includes (a) a thermal spray element configured to be coupled to a robotic arm, (b) a heating unit configured to be coupled to the robotic arm, (c) at least one processor, and (d) data storage comprising program instructions executable by the at least one processor to cause the heating system to perform functions including (i) receiving a first indication of a spray coating material positioned in the thermal spray element, (ii) receiving a second indication of a material of a substrate onto which the spray coating material is to be sprayed, (iii) heating the substrate for a time period until the substrate reaches a desired temperature that is determined based on both the spray coating material and the material of the substrate, and (iv) spraying the spray coating material onto the substrate.

Engine blocks and methods of forming the same are disclosed. The engine block may comprise a body including at least one cylindrical engine bore wall having a longitudinal axis and including a coating extending along the longitudinal axis and having a coating thickness. The coating may have a middle region and first and second end regions, and a plurality of pores may be dispersed within the coating thickness. The middle region may have a different average porosity than one or both of the end regions. The method may include spraying a first porosity coating in a middle longitudinal region of the bore and spraying a second porosity coating in one or more end regions of the bore. The first porosity may be greater than the second porosity and the first and second porosities may be formed during the spraying steps. The pores may act as wells for lubricant.

Engine blocks and methods of forming the same are disclosed. The engine block may comprise a body including at least one cylindrical engine bore wall having a longitudinal axis and including a coating extending along the longitudinal axis and having a coating thickness. The coating may have a middle region and first and second end regions, and a plurality of pores may be dispersed within the coating thickness. The middle region may have a different average porosity than one or both of the end regions. The method may include spraying a first porosity coating in a middle longitudinal region of the bore and spraying a second porosity coating in one or more end regions of the bore. The first porosity may be greater than the second porosity and the first and second porosities may be formed during the spraying steps. The pores may act as wells for lubricant.

The present invention relates to a method for producing a substrate (2) which is coated with an alkali metal (1), in which method a promoter layer (3) which is composed of a material which reacts with the alkali metal (1) by at least partial chemical reduction of the promoter layer (3) is applied to a surface of the substrate (2) and a surface of the promoter layer (3) is acted on by an alkali metal (1) and then the alkali metal (1) is converted into the solid phase and a coating containing the alkali metal is formed.

A spray nozzle can control a film region easily. A spray nozzle of an embodiment includes, a nozzle main body, a nozzle tip section connected to a tip of the nozzle main body, and at least one path changing section which is provided in a passage of the carrier gas in the nozzle tip section and changes a path of the film material.

Processing apparatus for processing a workpiece surface in form of an internal coating of cylinder bores which are arranged in a row. The apparatus includes a shield unit which is provided to separate from one anotherat least during operationa part region of the workpiece surface provided for the processing and an adjacently arranged part region of the workpiece surface, whereby the shield unit has at least one blocking nozzle which is provided to generate a fluid flow for separating the at least two part regions, wherein the blocking nozzle is positioned such that the fluid flow flows along the workpiece surface and the blocking nozzle is directed to the part region between two cylinder bores.

Processing apparatus for processing a workpiece surface in form of an internal coating of cylinder bores which are arranged in a row. The apparatus includes a shield unit which is provided to separate from one anotherat least during operationa part region of the workpiece surface provided for the processing and an adjacently arranged part region of the workpiece surface, whereby the shield unit has at least one blocking nozzle which is provided to generate a fluid flow for separating the at least two part regions, wherein the blocking nozzle is positioned such that the fluid flow flows along the workpiece surface and the blocking nozzle is directed to the part region between two cylinder bores.