A method of making a flowcell includes bonding a first surface of an organic solid support to a surface of a first inorganic solid support via a first bonding layer, wherein the organic solid support includes a plurality of elongated cutouts. The method further includes bonding a surface of a second inorganic solid support to a second surface of the organic solid support via a second bonding layer, so as to form the flowcell. The formed flowcell includes a plurality of channels defined by the surface of the first inorganic solid support, the surface of the second inorganic solid support, and walls of the elongated cutouts.

A method of welding at least two plastic components together is disclosed. The two plastic components are welded together at respective joining surfaces. The method comprises directing at least one infrared (IR) laser beam along the joining surfaces of the at least two plastic components. The IR laser beam heats the joining surfaces of the at least two plastic components to a welding temperature. The method also includes clamping the at least two plastic components together at the joining surfaces to create a weld.

A water valve, guide tube for a water valve, and associated method are provided. The water valve includes a housing and the guide tube is installed on the housing via laser welding. The guide tube and housing each provide axially facing mating surfaces which abut one another in a pre-bonded configuration. In a post-bonded configuration, a laser weld joint is formed at the interface between the mating surfaces. The joint forms a portion of an outer periphery of the housing.

Provided is a laser welded body which can be manufactured without undergoing complicated steps and maintain the characteristics of a resin contained in a resin member, which exhibits high welding strength even when scanned with a laser beam at a high speed, and which can be manufactured at high production efficiency. The laser welded body 10 comprises a first resin member 1 which is a laser-irradiated subject which contains a thermoplastic resin and nigrosine sulfate and has an absorbance a.sub.1 of 0.09 to 0.9; and a second resin member 2 which contains a thermoplastic resin as the same kind as or different kind from the thermoplastic resin and a laser beam absorbent, and has an absorbance a.sub.2 of 3.0 to 15, wherein the first resin member 1 and the second resin member 2 are laser-welded at a part at which the both resin members are overlapped and/or butted.

A joining material for laser welding, a laser welding method using the same, and a laser joined body using the laser welding method. The joining material includes a polymer matrix and a needle-shaped inorganic filler. The polymer matrix includes a polypropylene resin having a melt index of 80 g/10 min or more to 95 g/10 min or less as measured at a temperature of 230° C. and a load of 2.16 kg, and the needle-shaped organic filler has an aspect ratio of 10:1 to 20:1.

Disclosed are a laminated sheet comprising a first dye-containing layer, an intermediate layer and a second dye-containing layer laminated in this order, which is excellent in low temperature impact resistance and suitable for a laser tape winding method with high productivity, characterized in that the intermediate layer is composed of a stretched thermoplastic resin or a stretched thermoplastic resin composition, and each dye-containing layer is composed of a thermoplastic resin composition containing a dye which absorbs light having a wavelength of 300 nm or more and 3000 nm or less; and a laminate, and a method for producing them.

Provided is a laser welded body which can be integrated through a laser-welding step without undergoing complicated steps even through use of the same or difference resin members each other, which has excellent welding strength between the resin members, which maintains the characteristics of a resin contained in the resin member and which exhibits the high welding strength by improving meltability of the resin members yet under a laser-welding condition of a medium and high scan speed. A laser welded body comprises a resin member(s) which contains a thermoplastic resin and nigrosine sulfate having a sulfate ion concentration of 0.3 to 5.0% by mass and has an absorbance a of 0.09 to 0.9, an adjoined part where the resin member(s) is overlapped and/or butted, and at least a part of the adjoined part is laser-welded.

Described herein are various embodiments directed to rotor devices, systems, and kits. Embodiments of rotors disclosed herein may be used to characterize one or more analytes of a fluid. A method may include aligning an apparatus to an imaging device. The apparatus may include a set of wells defined by a first layer coupled to a second layer. The first layer may be substantially transparent to infrared radiation. The second layer may define a channel. The second layer may be substantially absorbent to the infrared radiation. The apparatus may further include a third layer coupled to the second layer and define an opening configured to receive a fluid. The third layer may be substantially transparent to the infrared radiation. A set of images of the apparatus may be generated using the imaging device. Bonding information may be generated based on the set of images.

A molded article that is used on a laser beam absorbing in laser welding side and that is possible to be marked by being irradiated with a laser beam, the molded article being composed of a resin composition containing 0.1 to 0.4 parts by mass of a carbon black per 100 parts by mass of a thermoplastic aromatic resin, the carbon black having a primary particle diameter of 20 to 40 nm and a DBP oil absorption of 100 cm.sup.3/100 g or more.

A manufacturing method for a liquid flow-path member including a flow path between a first substrate and a second substrate layered together, the method including a welding step for welding the first substrate and the second substrate together, in which in the method, the first substrate is formed of a material that blocks ultraviolet light and absorbs laser light, the second substrate is formed of a material that blocks ultraviolet light and transmits laser light, and in which the welding step includes melting, with laser light passing through the second member, a joint surface where the first member and the second member are joined to weld the first member and the second member together.