Sawing of the log is achieved by the use of a bandsaw or a circular saw with a second saw mounted vertically above the first in the event of sawing large diameter logs. A log carriage conveys the log through the headsaw on which the log may be clamped and turned, so as to enable it to be presented to the headsaw in order to achieve the best sawing pattern.
Veneer sheets refer to the thin sheets that are sliced off from a rubber wood log by using different processes. Before peeling, the majority of timbers need to be conditioned so as to soften the wood in order to facilitate peeling and to produce an acceptable quality of veneer.
Bent wood are those made by wetting wood, then bending it and letting it harden into curved shapes and patterns.In furniture making this method is often used in the production of rocking chairs, cafe chairs, and other light furniture. The process is in widespread use for making casual and informal furniture of all types, particularly seating and table forms.
Wood pellets are made from dry sawdust compressed under high pressure and extruded through a die. Some may include a low level of added binder, such as starch, but we use nothing other than steam. Wood pellets should be dry, clean, mechanically robust and have an ash content defined by the appropriate standard to which they have been made, which may also define other contaminants such as chlorine content.
LIVING NATURE has huge concessions throughout the country and we can guarantee a long term viable supply in this industry.
LIVING NATURE has also evolved into the development of value-added products and downstream processing of wood, which are wood pellets and bent wood etc.
LIVING NATURE conducts its business with honesty and integrity. We are reliable and dependable in all aspects of our service.
Processing of rubber wood essentially include sawing, preservative treatment and kiln drying. The quality control measures of the company starts from the raw wood ensuring its proper maturity and continues in the preservative treatment and computerized controlled seasoning process to make the timber in tune with the ambient conditions.
On leaving the headrig, resaw or edger, the lumber is cut to standardized lengths, edges squared and defects removed by the use of one or more fixed or moveable trimming saws, whereupon the lumber proceeds to be sorted and graded.
I. Peeling, reeling and clipping
Veneer sheets are rotary cut, in that the peeler block is rotated around its axis in a lathe, whilst a continuous veneer sheet is cut by a knife mounted parallel to the block’s axis.
The veneer sheet is then wound on spools, or led to a multi-tray system, so as to provide storage and surge capacity in the event of fluctuations in the veneer feed from the lathe; speeds of both storage systems are generally synchronized to that of the lathe.
The green veneer is then clipped to size, either manually or by high-speed knives, graded and stored in piles ready for drying. Any defects, such as knots and splits, are then cut out of the sheet.
II. Veneer drying
The veneer sheets may either be left outside to dry in the air or kiln-dried. Kiln-drying involves the drying of stacked veneer in batches or the continuous drying of sheets. Obviously a controlled drying environment, with minimal handling, will result in a more uniformly dried veneer, with the least amount of damage.
The assembly of the veneer prior to pressing entails the jointing of the narrow strips of veneer, which are edge-glued so as to make sheets of the required size. Glue is then applied to the inner plies or core, which in turn, are laid between the outer veneers ready for bonding. This operation accounts for a large share of the manual labour employed in the production process.
Once the veneers are laid-up as assembly plywood sheets, they are fed into hydraulic presses so as to bring the veneer into direct contact with the adhesive, where the application of heat cures the glue.
The departure from single opening cold presses towards multiple-opening hot presses, with between 5 to 25 daylights and operating at platen temperatures in the order of 80-180°C, has considerably reduced the overall pressing cycle time and increased press capacity. Heating of the platens is generally by hot water or steam.
Primary finishing, which entails the trimming, sanding and upgrading of the plywood after pressing, is undertaken so as to enhance the marketability of the product. It is carried out at either separate work stations as a combined operation in a continuous semi-automatic line.
Trimming saws cut the plywood boards to the required size, which are then sanded in machines fitted with wide-belt or drum sanders so as to obtain the desired surface smoothness. Damage or imperfections to the face veneers are then manually repaired by plugging and the application of patches.