摘要:
A fencing construction made of thermoplastic materials which can be easily assembled utilizing ultrasonic welding and which can include a unique configuration for the ultrasonic welding surfaces which prevents the flow of melted thermoplastic materials outwardly onto the decorative outer surfaces of the various fencing parts. Any excess thermoplastic material is designed to pass inwardly toward the longitudinally extending bore defined in the various fencing construction parts. This concept is particularly useful for attaching capping fence members which are injection molded onto structural fence members which are extruded.
摘要:
The structural member and fabrication thereof may be formed by mixing wood products chemically treated for durability and thermoplastics products. The fabrication process may included processing the products to a desired particle size; mixing the particles; processing the mixture in a high intensity processor and then processing the mixture in an extruder to obtain a molten state for forming the structural element in a mold. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a search or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
摘要:
A steel reinforced rubber plank made from discarded or scrap tires. The sidewalls and bead are removed from a scrap tire. The remaining belt is cut open to form a rubber strip. Next, the rubber strips are buffed to provide a better bonding surface. Then the bonding agents are applied to the treaded side of each rubber strip, each of the two strips are put together tread face to tread face to form a plank, pressed and heated until the two strips are completely vulcanized. The two-ply plank is then profiled into a final product.
摘要:
Plastic logs having a smooth, textured, glossy surface with a nominal diameter greater than 2 inches and a flexural modulus at 40null F. of at least 70,000 psi. Thermoplastic material comprising such logs is preferably substantially polyolefin and other plastic materials having a higher melt temperature, e.g. a melt temperature at least 20null C. higher than the melt temperature of the polyolefin component. Such logs are produced by extrusion through a circular die to a heat transfer medium Such extruded logs are especially useful for durable fencing.
摘要:
A fence system having treated wooden posts set in concrete at spaced-apart locations. Galvanized metal stringers extend between the posts and engage the post at a mounting surface. The mounting surface defines a plurality of vertically-elongate slots through which fasteners extend. Pickets are secured to the stringers and are vertically oriented. The stringers are secured by fasteners such as screws. Preferably the stringers are formed from HDPE and expansion and contraction of the pickets is accommodated by the slots in the mounting faces of the stringers. The pickets are formed by grinding waste plastic and adding UV inhibitors and color if desired. The ground plastic material is extruded under heat and pressure and the desired surface treatment applied to simulate the appearance of natural wood fencing. The surface-treated extrusion is cut to the desired length to form individual pickets.
摘要:
AN INTEGRAL THERMOPLASTIC FILM PRODUCT INCLUDING A PLURALITY OF PARALLEL SPACED SUBSTANTIALLY MOLECULARLY UNORIENTED THERMOPLASTIC FILM STRIPS REINFORCED WITH DIAGONALLY ARRANGED SIUBTANTIALLY STRAIGHT MOLECULARLY
ORIENTED THERMOPLASTIC FILAMENTS BONDED TO AT LEAST ONE SIDE THEREOF.
摘要:
A method for preparing a rubber protective cover of an expressway guardrail includes steps of: (S1), preparing material, wherein the material includes high-temperature vulcanized rubber, nanometer zinc oxide, nanometer silicon dioxide and a modifier; (S2), placing the vulcanized rubber into a mixing furnace which is able to increase a temperature, and then heating to 200° C.; (S3), adding the nanometer zinc oxide, and then stirring for 10 minutes; (S4), adding the nanometer silicon dioxide, and then stirring for 5 minutes; (S5), adding the modifier, and then stirring for 30 minutes; and (S6), adding the rubber after stirring into a four-roll calender, shaping, and preparing the rubber cover having a thickness of 10-20 mm and a length of 300-600 mm. The present invention has a low cost, a corrosion resistance, an easy preparation process, a low equipment requirement and a strong operability.
摘要:
A wall panel for a livestock confinement pen made of a hollow plastic twin sheet thermoformed body with a grid divider received in an opening of the body between the two sides of the body. One side has flanges by the opening to receive a cover cut from the other side over the opening.
摘要:
High visibility fence includes an elongated mesh having a length, and a front, back, top, and bottom. Elongated mesh includes vertical stay wires, horizontal line wires, and a strip of synthetic material provided adjacent the front of the mesh. The strip of synthetic material extends horizontally, and a further strip of synthetic material is adjacent the back of the mesh. The further strip of synthetic material overlaps a portion of the strip of synthetic material defining an overlapping region. Strip of synthetic material and further strip of synthetic material extend along the length of mesh and adjacent vertical stay wires. Horizontal further strip of synthetic material is attached to the horizontal strip of synthetic material, and the horizontal strip of synthetic material and the horizontal further strip of synthetic material are attached in overlapping region by an attaching element, such as adhesive, adhesive tape, thermal welding, or ultrasonic welding.
摘要:
A plastic or composite slat with wooden appearance, to be inserted into chain link fences, having three or more longitudinal projections on at least one face of the slat. A majority of the projections on a face of the slat having projections are the same color as the slat, and a minority of the projections on such a face have a color different from that of the slat. The slat and a majority of the projections on each face are extruded; the minority of the projections on each face are either co-extruded from an extrudable material having a color different from the color of the slat or are painted with a color different from the color of the slat. Optionally, the longitudinal projections can be replaced with longitudinal depressions.