摘要:
A structural reinforced composite construction mat includes a plurality of composite plastic beams that are ganged together to define the mat, with a plurality of flitch plates disposed between at least some of the plastic beams to provide additional strength and rigidity to the mat. The plastic beams may be made of a composite material have a generally rectangular cross-section. The flitch plates have a width (vertical height) when disposed between adjacent beams that is less than the width (vertical height) of the beams, such that the flitch plates may be recessed below and above the top and bottom surfaces of the mat, respectively. A plurality of rods extend in the lateral direction through the beams and plates to compress the beams and plates against each. The flitch plates may be metal or fiber-reinforced resin and may further include slotted holes to allow the beams to retract lengthwise in response to environmental changes.
摘要:
A structural reinforced composite construction mat includes a plurality of composite plastic beams that are ganged together to define the mat, with a plurality of flitch plates disposed between at least some of the plastic beams to provide additional strength and rigidity to the mat. The plastic beams may be made of a composite material have a generally rectangular cross-section. The flitch plates have a width (vertical height) when disposed between adjacent beams that is less than the width (vertical height) of the beams, such that the flitch plates may be recessed below and above the top and bottom surfaces of the mat, respectively. A plurality of rods extend in the lateral direction through the beams and plates to compress the beams and plates against each. The flitch plates may be metal or fiber-reinforced resin and may further include slotted holes to allow the beams to retract lengthwise in response to environmental changes.
摘要:
In a lumber factory, an automated laminated veneer lumber (LVL) process supported by a lumber production line employing a cross-cutting and rip-sawing stage, a dip-coating stage, a spray-coating stage, a print-marking stage, and a stacking, packaging and wrapping stage. At the dip-coating stage, cross-cut and rip-sawed LVL product is automatically transported and submerged through a dipping reservoir containing clean fire inhibiting chemical (CFIC) liquid, and then wet-stacked and set aside to dry. Once dried, the dip-coated LVL products are returned to the production line and sprayed coated with a moisture, fire and UV protective coating at the spray-coating stage, and then passed through a drying tunnel for quick drying of the spray-coating to produce Class-A fire-protected LVL products. The Class-A fire-protected LVL products are stacked, packaged and wrapped at the stacking, packaging and wrapping stage into a package of Class-A fire-protected LVL products, ready for shipping.
摘要:
A structural reinforced composite construction mat includes a plurality of composite plastic beams that are ganged together to define the mat, with a plurality of flitch plates disposed between at least some of the plastic beams to provide additional strength and rigidity to the mat. The plastic beams may be made of a composite material have a generally rectangular cross-section. The flitch plates have a width (vertical height) when disposed between adjacent beams that is less than the width (vertical height) of the beams, such that the flitch plates may be recessed below and above the top and bottom surfaces of the mat, respectively. A plurality of rods extend in the lateral direction through the beams and plates to compress the beams and plates against each. The flitch plates may be metal or fiber-reinforced resin and may further include slotted holes to allow the beams to retract lengthwise in response to environmental changes.
摘要:
A veneer peeling apparatus includes a bearing frame (10) for rotatably supporting a round wood (20), a peeling blade (24) which can be placed against the periphery of the round wood, and at least one milling head (40) for scarfing at least one edge of the veneer, wherein the milling head (40) includes a groove milling cutter (44) for trimming the veneer.
摘要:
A lining element includes at least one decorative layer formed from at least one complex that includes both a ligneous material layer having a backside and a front side and a reinforcement layer extending over the backside of the ligneous material layer. The decorative layer further includes at least one additional layer made in a material different from the ligneous material. The front side of the additional layer substantially extends in the continuity of the front side of the complex. The additional layer and the complex are attached to each other through at least one seam.
摘要:
A method for making a fibrous strip configured for making a ribbon with a thickness ranging between 0.1 mm and 1 mm and a width ranging between 2 mm and 10 mm. The ligneous logs or cans are cut into square-edged plank with a predefined length. The strip is separated from a surface of the square-edged plank by an orthogonal cutting process. The depth of cut is equal to the thickness of the strip. The cutting speed direction is parallel to the fibers of the square-edged plank. Also, a fibrous reinforcement is obtained using the method and a device for implements the method.
摘要:
An apparatus having several stations that receive, apply adhesive to, crowd, press and cure the wood pieces into a continuous wood panel. A singulation station engages an individual one of the wood pieces oriented in a cross-machine direction from an infeed station, presents the wood piece to an adhesive station for adhesive application and releases the wood piece for crowding at a crowding station into a batch of the wood pieces. A press station downwardly presses the batch with an upper platen and presses the batch in a downstream direction onto the continuous wood panel with a clamping device. A radio frequency device applies radio waves to cure the adhesive between the wood pieces of the batch so as to adhere the wood pieces together and so as to adhere the batch to the continuous wood panel. A cutting station cuts individual wood panels from the continuous wood panel.
摘要:
A method for maintaining a plurality of wood veneer substrates in fixed relation to each other that includes positioning a plurality of wood veneer substrates in relation to each other, and applying a tape to the substrates to maintain the substrates in fixed relation to each other. The tape is capable of maintaining wood veneer substrates in fixed relation to each other before and during a lamination process in which the substrates are laminated to an underlying base, and is cleanly removable from the substrates following the lamination process.
摘要:
A method and apparatus for joining two pieces of wood veneer with square cut edges by a lap joint with a pre-determined thickness not greater than the thickness of a single piece of veneer. The lap joint is formed in a press which may have heated plates for pressing the overlapping portions of the veneer pieces together. The press is provided with adjustable stops for limiting the spacing between the platens in the final pressed position to provide the lap joint with the pre-determined thickness. The lap joint is bonded by glue provided on the surface of at least one of the overlapping portions of the two veneer pieces. The lap joint is heated to an elevated temperature above the lignin softening temperature of the veneer during pressing to enable thermoplastic flow of the wood veneer which produces a lap joint of greater strength. The two platens are formed with anvil surfaces including flat middle surfaces which are parallel, and side surfaces on opposite sides of each middle surface which slope away from each other and which are joined to the middle surface by curved transition portions to avoid cutting the veneer and produce a stronger lap joint.