摘要:
Disclosed are automated processes and systems for the assembly of composite doors, and doors made using such processes and systems. The automated process may comprise a continuous series of steps allowing individual doors to be made in tandem, rather than in batch. The process may allow for the automation of individual steps such that the need for coordinating separate assembly steps may be substantially reduced.
摘要:
A door has a core that includes a porous layer having a thickness and two opposing major surfaces. In one construction, the core also includes three fire-retardant layers, and two of the fire-retardant layers are separated by the porous layer. The porous layer and the fire-retardant layers are coupled together. Other constructions include one or more fire-retardant layers in balanced or unbalanced placement around the porous layer.
摘要:
A door has a core that includes a porous layer having a thickness and two opposing major surfaces. In one construction, the core also includes three fire-retardant layers, and two of the fire-retardant layers are separated by the porous layer. The porous layer and the fire-retardant layers are coupled together. Other constructions include one or more fire-retardant layers in balanced or unbalanced placement around the porous layer.
摘要:
Metal doors may be more cost-efficient than wood to manufacture and maintain, but may not be as aesthetically pleasing to the consumer. For example, metal garage doors may only be available in limited color lines and often do not simulate a natural wood grain in a very realistic manner. Also, metal garage doors may be limited in design, in that it may be difficult to add three dimensional shaping, such as trim or paneling, to the outer surface of a metal door. For example, some manufacturers apply extrusive plastic panels to the face of a metal garage door to add a design to the face of the door. The plastic and metal components, however, may exhibit different physical properties in response to changes in temperature and humidity and thus, the door may exhibit warping or other types of deformation upon exposure to weather.
摘要:
The present invention provides fiber-reinforced composites, and components for buildings, such as door skins, that include fiber-reinforced composites. Also provided are methods and systems for manufacturing fiber-reinforced composites that may be used in building structures. In an embodiment, the present invention provides a fiber-reinforced composite comprising long fibers of fiberglass and polyurethane produced using long-fiber injection (LFI) technology.
摘要:
A composite mixture for making a thin-layer composite product, such as a door skin, which includes cellulosic fibers, at least 1% by weight noncellulosic fibers, such as glass fibers, and at least 1% by weight of an isocyanate resin, and methods for making them. The noncellulosic fibers may be individualized before they come in contact with the resin.
摘要:
An adjustable cargo securing strap including an adjustable first ratchet strap and each of a pair of ratchet strap S hooks attached to each of a first end and a second end, respectively, of the adjustable first ratchet strap. A hook member is attached to an upper surface of one of the pair of ratchet strap S hooks. Each of a proximal attachment member and a distal attachment member is disposed on each of a proximal end and a distal end, respectively, of a rubberized second strap. A second strap S hook is disposed through an aperture of the distal attachment member, and the hook member is selectively slidably engageable within an aperture of the proximal attachment member.
摘要:
Thruster devices for use with a lateral thrust module and/or a flight body are adapted to achieve short action times with relatively slow burning propellant materials. Such thruster devices include a combustion chamber with a plurality of propellant grains disposed therein. At least some of the plurality of propellant grains are formed into a selected shape. Methods of making thruster devices include forming a housing comprising a first longitudinal end and an opposing second longitudinal end. The housing is formed to define a combustion chamber. A plurality of propellant grains are disposed in the combustion chamber of the housing, where each propellant grain comprises a selected shape. An igniter is coupled to the housing, which igniter is adapted to initiate a combustion of the plurality of propellant grains during deployment of the thruster device.
摘要:
A method to produce a thin-layer lignocellulosic composite having increased resistance to moisture-induced shrinking or swelling is provided. The method includes forming a lignocellulosic composite mixture including at least one type of lignocellulosic fiber having a predetermined moisture content of at least about 4 wt %, at least about 1 wt % of an organic isocyanate resin, at least about 0.1 wt % of a tackifier, and at least about 0.1 wt % release agent, wherein the mixture is substantially free of added wax. The method further includes pre-pressing the mixture into a loose formed mat and pressing the mat between two dies at an elevated temperature and pressure and/or a sufficient time to further reduce the thickness of the mat to form a thin-layer composite of predetermined thickness, and to allow the isocyanate resin to interact with the lignocellulosic fiber such that the resultant thin-layer composite has a predetermined resistance to moisture.