摘要:
A polyvinyl floor or decking system for use on indoor and/or outdoor applications, including porches, decks, patios and marine docks. The system comprises a plurality of extruded, generally hollow elongated polyvinyl or plastic tubular members which are placed on a supporting frame or structure in a conventional manner. Each of the members includes a plurality of grooves on the top surface in order to maximize surface friction and provide a better walking surface in all conditions, and further includes a bottom surface, and a pair of side surfaces. Each of the side surfaces includes a plurality of slots that are spaced so as to generally overlie the supporting joists. A plurality of mounting cleats engage the slots on adjacent members, and secures the members to the deck and to each other. The cleat in slot arrangement allows for the different rates of thermal expansion and retraction of the polyvinyl deck members compared to the supporting wood frame.
摘要:
A method of friction welding first and second parts together at an angular orientation relative to each other includes the steps of mounting the first part in a spindle for axial rotation and the second part in a non-rotatable holder. The spindle is then rotated and the angular orientation of the first part relative to the second part is determined at any specific time. The holder is moved toward the spindle to bring the second part into frictional contact with the first part at a selected one of the specific times that the angular orientation is determined. Accordingly, due to frictional contact, the respective contacting surface of the parts are melted. The speed of the rotation of the spindle is then decreased and the holder is moved toward the spindle to forcibly urge the first and second parts together at the contacting surface. Rotation of the spindle is stopped at a specific determined angular orientation of the first part relative to the second part while continuing to forcibly urge the parts together to allow cooling and fused solidification of the contacting surfaces.
摘要:
Multilayer optical film that can be used as a reflective polarizer or mirror is disclosed. The multilayer optical film comprises alternating optical layers of polyesters such as PET and PEN, copolymerized with 4,4′-biphenyl dicarboxylate. The multilayer optical film exhibits a high ratio of in-plane to out-of-plane birefringence.
摘要:
A linear friction welding system in one embodiment includes a ram configured to vibrate along a welding axis, at least one rocker arm with a first end portion spaced apart from the welding axis and constrained against movement along the welding axis, and a second end portion which is movable along the welding axis, and a first welding component support member configured to hold a first welding component, the first welding component support member operably connected to the ram and supported by the second end portion of the at least one rocker arm, such that vibration of the ram along the welding axis causes the location of the first welding component support member along an axis orthogonal to the welding axis to vary.
摘要:
Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
摘要:
A linear friction welding system in one embodiment includes a ram configured to vibrate along a welding axis, a cam follower operably connected to the ram, an eccentric including an eccentric outer periphery operably engaged with the cam follower, and an inner periphery, a first power shaft slidingly engaged with the eccentric, and a second power shaft eccentrically engaged with the inner periphery.
摘要:
Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
摘要:
A solar control glazing laminate may include a solar control film disposed between first and second polyvinyl butyral layers and first and second glazing substrates. The solar control film may include an infrared radiation reflecting polymeric film and a polymeric binder layer disposed on the infrared radiation reflecting polymeric film. The polymeric binder layer may include a polyester and cross-linked multi-functional acrylate segments and may have infrared radiation absorbing nanoparticles dispersed therein.