Wood has become a widely used wooden door material due to its natural beautiful texture, soft luster and pleasant color, moderate hardness, good sound insulation, heat insulation performance, temperature control, humidity control and other functions. Especially in recent years, cherrywood made of high-grade wood such as black walnut, teak and solid wood door have attracted people's attention for its dignified simplicity, beauty and atmosphere. However, the pure solid wood door made of precious wood, because of limited resources and high prices, most people can only look at the "door" and sigh. Based on the actual production, this paper introduces the processing technology of producing glued laminated timber with ordinary wood Cherrywood as the base material, sliced black walnut of precious materials such as veneer, man-made Board and wood as the finishing material, supplemented by other glued laminated timber solid wood door.
Features of 1 glued laminated timber solid wood door
glued laminated timber is a wood board with certain specifications made of small-sized wood through adhesive connection. Its production process is mainly: after tenoning machine, the small-sized wood short materials are opened, the short material is lengthened by finger jointer and high-strength adhesive. After planing, the side of the wood material connected by the finger is glued, puzzle and glued at high frequency. Glued laminated timber not only has various advantages of wood, but also glued laminated timber raw materials use more processing residues, which can improve the comprehensive utilization rate of wood. At the same time, in the process of solid wood door processing, through material selection, it can achieve no natural defects such as decay, scarring, Moth, splitting and so on in a certain range. Glued laminated timber solid wood door is mainly made of glued laminated timber made of pine, fir, Liu'an and other materials as the base material, and made of Cherrywood, walnut, teak and other precious materials as the finishing materials. Compared with pure solid wood door, glued laminated timber solid wood door has the characteristics of high quality, difficult deformation and low processing cost; Meanwhile, precious tree species are used as finishing materials, its elegant texture and soft color meet people's visual and functional needs.
2 glued laminated timber solid wood door door frame Processing Technology
the "two-piece" structure of the glued laminated timber solid wood door frame means that the section of the door frame consists of two parts, each part is made of pine, Liu'an wood or glued laminated timber made of this kind of wood as the inner core, and the surface is covered with walnut, cherrywood and other precious tree species, such as decorative veneer or plywood, the last two parts are spliced by square tenon structure to form solid wood door door frame parts.
Solid wood door the processing process can be divided into three steps:
1) blanking & rarr; Laminating decoration veneer, lining Board & rarr; Aging & rarr; Trimming & rarr; Sanding & rarr; Slot & rarr; Laminating decoration veneer & rarr; aging & rarr; Trimming & rarr; Sanding & rarr; Slot
2) blanking & rarr; Laminating decoration veneer, lining Board & rarr; Aging & rarr; Trimming & rarr; Sanding & rarr; Laminating decoration veneer & rarr; Trimming & rarr; sanding & rarr; Tenon
3) wedge the processed door frame parts & rarr; Aging & rarr; Tenon & rarr; Wedge frame, forming the whole door frame glued laminated timber solid wood door the inner core Wood specification of the door frame is small, and take advantage of the advantages of glued laminated timber, the defect in timber is less, the moisture content is more uniform, effectively avoid the phenomenon of cracking, warpage, deformation and so on that the pure solid wood door frame is prone to occur when the environment temperature and humidity change; Secondly, since the outside of the core material is decorated with 3-5mm precious tree species with a thickness of veneer, the original texture and color of the wood are well maintained; For example, the decoration veneer is carefully and strictly selected before pasting, make the overall appearance of the door frame more beautiful and harmonious, almost no difference from the pure solid wood door frame. All decorative veneer stickers on the door frame are required to be carried out on hot pressing and puzzle equipment to ensure firm bonding between decorative veneer and the inner core, tight stitching and good overall strength.
Glued laminated timber another production process of solid wood door frame is: the decoration veneer can be used to make the door leaf medium density fiberboard bottom material coated with a thinner decoration veneer or plywood edge strip instead, which can further reduce the material cost; because plywood is prone to surface cracking during secondary hot pressing, it is generally used to cover 2.5mm or 3mm medium density fiberboard, and 0.3-0.7mm decorative veneer.? 3?? Glued laminated timber solid wood door fan structure and processing technology
3.1 glued laminated timber solid wood door fan composition?
Glued laminated timber solid wood door fan is mainly composed of several components, such as edge, vertical, upper, muntin, lower, and door center plate. Its facade can be roughly divided: edge, Mullion, upper, muntin, and lower, which are one type; The door panel is another type.
3.2 glued laminated timber solid wood door structure and processing of fan-type parts?
Glued laminated timber solid wood door the mullion parts in the fan generally use pine, Liu'an and other glued laminated timber as the inner core, and use splicing machine seal walnut, cherrywood and other precious tree species to decorate solid wood sheet on both sides, the top and bottom are covered with precious tree species of the same material for decoration veneer.
Processing process: glued laminated timber specification materials & rarr; Decorative solid wood sheet edge sealing & rarr; Trimming & rarr; Hot pressing and laminating decoration veneer & rarr; Edging. Trimming (& rarr; Tenon) & rarr; eyelet & rarr; Milling line & rarr; Parts
the processing process of this kind of parts is relatively simple. It should be noted that the specification of decorative solid wood sheet sealed on both sides of glued laminated timber, and the milling line type must be at least 5mm larger than the line type width, the thickness of the decorative solid wood sheet on the other side is 5-8mm, and the thickness of the component is 1mm larger than that of glued laminated timber. As the processing quantity during trimming. In the process of processing, attention should be paid to maintaining the consistency of the base plane of parts processing, and the texture and color between decorative veneer and decorative solid wood should be as close as possible to ensure the overall flatness and appearance effect of the door leaf after wedge closing.
3.3 structure and processing of glued laminated timber solid wood door door core plate
1) glued laminated timber edge sealing decoration veneer door plate. The high-quality glued laminated timber is used as the internal core material, and splicing machine is used to combine the square tenon structure around to splice the precious wood materials. After aging and sanding, the same kind of precious wood decorative sheet made by hot pressing and pasting saw on the upper and lower sides of it, edging specifications and sizes are made, and the final milling line type is OK.
Process: glued laminated timber specification materials & rarr; Tenon & rarr; Decorative solid wood edge sealing & rarr; Edging & rarr; Sanding & rarr; Laminating decoration veneer & rarr; Milling line & rarr; Trimming
the thickness of the decorative veneer as the finishing material is generally 3-5mm, and the color and texture of the decorative veneer on both sides of the same door center plate should be similar; When the coating is veneer, the jointing of veneer should be parallel to the longitudinal edge of the door center plate. The width of the door core plate edge sealing solid wood material should be 15-20mm larger than the linear width of the prepared milling to prevent the internal glued laminated timber from being exposed when milling the linear type. In order to reduce the cost, the decorative veneer can also be replaced by the thin decorative veneer with medium density fiberboard hot-pressed coating, but its disadvantage is that the vertical edge of medium density fiberboard will be exposed when the linetype is made, which is not beautiful enough. Secondly, edge-sealing solid wood can also be divided into two halves, with a low-cost man-made board in the middle.
2) medium density fiberboard laminating decoration veneer door core board & rarr; Use a certain specification of medium density fiberboard directly as the main material of the door core board. After milling out the line type, use the vacuum airbag press to overall laminating decoration veneer, forming at one time.
Process: medium density fiberboard & rarr; Specification material & rarr; Milling line & rarr; Laminating decoration veneer & rarr; Trimming
the processing technology of this solid wood door requires that the quality of medium density fiberboard is better, and the milling linear line should be smooth and smooth, avoiding edges and too complicated linear lines, and the surface of the door plate should be kept clean, as far as possible, air bag press is used to cover veneer of the decorative surface to ensure that the coating is firm, firm and smooth, so as to avoid appearance defects such as ungluing and bubbling. The color and texture of decorative veneer should be as consistent as possible during splicing, and the splicing gap should be tight and smooth.
To sum up, glued laminated timber solid wood door will have a place in the solid wood door market with its elegant texture, beautiful color, difficult deformation, low processing cost and many other advantages, and has a good development prospect. In the actual manufacturing process, more new structures and new wooden door processing techniques can also be developed according to the market demand.
