6results about "Mechanical surface treatment" patented technology

A polymer composition for coating wooden pallets is provided. The polymer composition includes a mixture of at least one of polyurea, polyurethane, silicone elastomer, and combinations thereof in a predetermined ratio. The polymer composition imparts desirable properties to the wooden pallet, such as high impact and abrasion resistance, tensile strength, and antistatic properties, along with flexural strength. The present invention also provides a method for coating the polymer composition onto the wooden pallet. The matrix coating process results in much stronger adhesion due to overlapping coatings of the polymer composition on the sides of the wooden pallet, reducing the amount of wear of the polymer composition during the coating of the wooden pallet. The present invention also provides a wooden pallet coated with the polymer composition. The wooden pallet coated with the polymer composition has properties such as high impact resistance, abrasion resistance, and antistatic properties.

The invention relates to a plywood board and a method for manufacturing the same. The plywood board comprises a primary surface veneer sheet (211), a secondary surface veneer sheet (221), and at least three core veneer sheets (231, 232, 233, 241, 242) arranged in between the primary surface veneer sheet (211) and the secondary surface veneer sheet (221), the veneer sheets having been bonded together with adhesive (120). At least one of the core veneer sheets (231, 232, 233, 241, 242) has been incised, thereby comprising incisions (I). However, neither the primary surface veneer sheet (211) nor the secondary surface veneer sheet (221) has been incised. Moreover, a first angle (α1) between a grain direction (G211) of the primary surface veneer sheet (211) and a grain direction (G221) of the secondary surface veneer sheet (221) is at most 10 degrees.

A device (1) for post-processing at least one plate-shaped workpiece (2), which is provided with an edge band (4) on at least one narrow side (3), is proposed. The device (1) can be arranged in a machine (5) for processing the workpiece (2) such that post-processing can be carried out by means of the device (1) in the area of ​​a residual overhang (6) of the edge band (4) that is present transverse to the longitudinal extent of the edge band (4). The device (1) comprises at least one brush unit (7) with at least one brush tool (8), wherein the brush tool (8) has at least one disc brush (9) that is rotatable about a rotation axis (11) located on the workpiece plane (10), wherein the rotation axis (11) is tiltable about at least one pivot axis (12, 13) in an adjustment angle range (14) of 45° to 90° relative to the workpiece plane (10).

The invention relates to a fiber softening anti-curling method and device. The method comprises the following steps that (1) a sheet-shaped wood board rotationally cut by a rotary cutter is conveyed forwards through a clamping and conveying mechanism; (2) at the tail end of the clamping and conveying mechanism, the face, with few back crack paths, of the sheet-shaped wood plate is hit in the output process of the sheet-shaped wood plate, wood fibers on the face, with few back crack paths, of the sheet-shaped wood plate are softened, and the tension of the face, with few back crack paths, of the sheet-shaped wood plate is released; and (3) outputting the beaten sheet-shaped wood board for the next procedure. According to the method and the device, the rotary-cut sheet wood board can be prevented from curling.

The invention relates to the technical field of plate processing, in particular to a shaving board drawer curved surface closed processing device based on an environment-friendly coating system.The shaving board drawer curved surface closed processing device comprises a workbench, a fixed clamp and a movable hanging bracket, and the movable hanging bracket moves in the length direction of a shaving board clamped by the fixed clamp; a lifting seat capable of vertically lifting is arranged at the top of the movable hanging bracket, a horizontal scraping plate and a side scraping plate are arranged on one side of the lifting seat, and the lifting seat lifts in the vertical direction in the moving process of the movable hanging bracket to keep the gap between the horizontal scraping plate and the top of the shaving board consistent; according to the technical scheme, putty is continuously and quantitatively extruded to the surface of the shaving board through the putty extrusion unit, the flowing range of the putty is effectively restrained through cooperation of the horizontal scraping plate and the side scraping plate, and the thickness of a filling layer is accurately controlled through dynamic lifting adjustment of the lifting base; the problem that the thickness of putty is not uniform due to a special-shaped curved surface is solved while the special-shaped notch of the shaving board is comprehensively sealed, and the situation that a concave area is insufficient in filling or accumulation at a convex position is too thick is effectively avoided.

The invention relates to a clamping arrangement (1; 51) for crack limitation in tree trunks, with two cutting edges (11, 12) which each extend from a back surface (13) to a cutting edge (14) along a cutting direction (15) and which are tapered in the cutting direction (15), wherein the cutting directions (15) of the two cutting edges (11, 12) are aligned parallel to each other and wherein the two cutting edges (11, 12) are connected, in particular exclusively, by a first connecting web (25) which extends between first end regions (16) of the two cutting edges (11, 12) and by a second connecting web (26) which extends between second end regions (17) of the two cutting edges (11, 12).