Inspect Teak veneer faced panels or plywood,Do you know these defects ?
Grading is a value adding process as ” adding value” is an action that adds worth to something through a specific process. If you don’t know these defects and not prefessional,how you buy good quality plywood at good prices ?I can not believe .
Bee Holes, Green Band, Branch, Heart Hole, Doyo Hole, Pitch Pocket, Double Heart, Wavy, Bump, Twist, Culvature Diagonal Heart.
Cup Shape, Ring Shape, Flute, Inbark, Sun Crack, Spongy, Pinknot, Black Spot, Elephant Skin, Triangle shape, Felling crack, Elliptical shape.
Inbark hole, Star crack, Waving ring, Ring close, Deform Gallstore, Heart crack, Side hole, water stain, Flute mark, Color dark, Heart spongy, Pig eye, White spot, White band.
I will provide you pictures if you want them to recognize …
FINGER-JOINT CHINESE FIR LUMBER CORE OKOUME BLOCKBOARD
Finger-Joint Chinese Fir Lumber Core Okoume Blockboard exported to USA ,when you buy blockboard,some people don’t have professional knowledge of the blockboard,the quality are too much different .Finger joint is one of the best quality used for Lamination grade and furniture parts directly ,not like falcata lumber core ,better than fAlaca ,becuase the core constrution are all finger joint ,you can see the pictures ,not only edges also inside core construction all finger joint .
NOrmally chines fir we use are finger joint ,not butt joint like Falcata or pine or poplar .
Now, in China, there are many blockboard lumber cores are made of recycled materials. Such as poplar, pine, falcata and so on. But poplar and pine take a lot share, more than 80%.
Recycled poplar lumber core ususlly come from old furniture and decorative boards or off-cuts of making new ones. Generally speaking, recycled poplar lumber’s quality no good. A lot of holes. In order to make good blockboard, the lumbers must be puttied no less than 2 times.
As recycled pine lumber core , more than 50% are made of pine lumbers that used to strut film faced plywood. Personally, I think this kind of pine lumber core is as good as new ones.
HOW TO FILL THE HOLES OF THE LUMBER CORE BLOCKBOARD ?REPAIR THEM FIRST OR INSPECT THEM FIRST ?
As the experienced QC should know that the lumber core blockboard is a special panel for the QC to inspect ,especially the edges of the blockboard ,there are many holes should be filled with wood veneers or lumbers properly,Then will fill othe materials to make the edges smoothly without holes .
Some QC inspected the blockboard,after all the inspection before packing,and then filled the edges ,that would be a big problem to clean the putty and something materials from the inside of the surfce .As all the sanding are finished,the workers could not remove all the dusty outside.
Our experienced QC should advise the workers to fill the holes first before any inspection and packing ,with putty and other mateirals to fill the hotles .Then smoothly sanding ,aftersanding ,all the dust will be removed and could not see any holes an dusty .
So ,what is your idea ?
The inspection process (checklist ) of lumber core blockboard is different from plywood inspection
Do you know the difference ?You can talk with our experienced professional QC.
HIGH QUALITY TEAK ORIDINARY FURNITURE GRADE BLOCKBOARD PRODUCTION OCTOBER SHIPMENT
Most of the paulownia trees and wood products are from Caoxian (cao country ) and zhengzhou ,henan province .Paulownia Edge Glued Board , Paulownia Finger Jointed Board, Paulownia Paulownia Wall Panels,Paulownia Flooring,Paulownia S4S primed board,MDF+Paulownia finger jointed board +MDF,wall cube shelf,Paulownia lamination BoardCedar Wall Panels,Paulownia Furniture,Bed Slat,Paulownia Sauna Board,Paulownia Arts and Crafts,Paulownia drawer sides and backs,Paulownia edge glued board,Paulownia batten,Snowboard Woodcore,paulownia edge glued board for wall panel with groove,Paulownia wooden picture frame board,photo frame panel,paulownia lumber,paulownia joint picture frame board,photo frame baord,Grooved FSC paulonwia drawer sides board,paulownia drawer sides ,china balsa timber,natural color,solid paulownia drawer sides and backs furniture wood,Decorative and interior paulownia wall panels,FSC lightweight paulownia wooden sticks China FSC lightweight paulownia bed slats factory FSC lightweight paulownia bed slats China 100% FSC PAULOWNIA PLANKS factory 100% FSC PAULOWNIA PLANKS,poplar edge glued solid board with UV3S（clear coat) and dovetail groove China poplar plywood bed slat,bleached slat factory poplar plywood bed slat,bleached slat China bamboo & poplar wood for snowboarding factory bamboo & poplar wood for snowboarding China poplar wood factory poplar wood,Taekwondo breaking Board, taekwondo performance board
Commercial furniture grade lumer core blockboard Okoume/Bingtangor/Pencil Cedar/Sapele
The core construction are :
Okoume face veneer / whole piece of poplar veneer 0.8mm to 1.0mm / Lumber core edge-joint butt joint and finger joint / whole piece of poplar veneer 0.8mm to 1.0mm /Okoume face veneer
also supply oversize and big size blockboard like 4’x9′ and 5’x10′ size blockboard ,fir lumber core .If big large size blockboard,the face and back veneer may not whole piece of face veneer ,may joint veneer .
BB/CC grade without patches ,smoothly sanded ,calibrated sanding .
PLAIN SLICE TEAK WOOD FACE VENEER BLOCKBOARD PRODUCTION AND PACKING
PINE LUMBER CORE ,EDGES ARE FINGER JOINT ,INSIDE ARE BUTT JOINT
CONSTRUCTION : TEAK WOOD FACE VENEER / WHOLE PIECE OF POPLAR CORE VENEER / SHORT-GRAIN POPLAR CORE VENEER 3 PIECES / PINE LUMBER CORE / SHORT-GRAIN POPLAR CORE VENEER 3 PIECES /WHOLE PIECE OF POPLAR CORE VENEER/TEAK WOOD FACE VENEER
AA/A GRADE ,AAA/AA GRADE,AA/AA GRADE
ONE SIDE AA TEAK FACE VENEER ,ONE SIDE RED HARDWOOD FACE VENEER
TWO SIDES TEAK FACE VENEER
WE CAN ALSO SUPPLY OTHER FANCY WOOD VENEERS AND PAULOWNIA CORE ,POPLAR CORE AND FIR ,FALCATA LUMBER CORE
THe lumber core used for our teak blockboard are selected pine lumber core ,not imported falcata or domestic poplar lumber core .
Teak face veneer are selected natural teak face veneer .
MEGAPLY TEAK BLOCKBOARD 5-PLY 1220x2440x18mm, good 2 sides and good 1 side ,if good 1 side,the back is red color hardwood whole piece of face veneer .both smoothly sanded .
So far, most peopel know that the lumber of blockboard is squareness. But now, there are half-round, T shape and T-T shape lumbers which are all made of the axis of poplar.
So far as I know, most of such blockboards are produced in Heze area and Linyi area Shandong Province. Part are produced in Hebei province.
As the quality, T-T shape is better than T shape, T shape is better than half round. Most of the lumbers are connected by poplar cores on which are glued. In another words, there are no glue between lumber. Little T and T-T blockboard are glued between lumber and lumber.
CHINESE PAULOWNIA LUMBER CORE,CHINESE FIR,CHINESE PINE ,CHINESE POPLAR ,CHINESE HARDWOOD CORE …
LOOK AT some of the blockboard edges ,some are not manufactured yet,some are already trimmed ,so ,when you buy,make sure the suppliers already trimmed the edges of the blockboard ,then eveything is perfect .
KEY ADVANTAGES OF PAULOWNIA CORE BLOCKBOARD AND PLYWOOD
Paulownia timber is widely used in Asia. It is light, odourless, and easily worked. In colour it varies from silver-grey (highly prized in Japan) to light brown. It has a low basic density but is easy to dry and, although unsuitable for structural use, has physical and mechanical properties that are acceptable for other purposes. It is straight-grained and easy to plane to a glossy surface.
Characteristic features of paulownia timber are:
- Lightness – Paulownia is the lightest known timber other than balsa;
- High strength-to-weight ratio (although basic strength is low);
- Low shrinkage;
- Very good dimensional stability;
- Resistance to insect damage;
- Low thermal conductivity;
- Low temperature conductivity;
- Good electrical insulation properties;
- Resistance to fungal rots (but not to surface moulds).
- Paulownia wood has been used for a wide variety of purposes in China and Japan for more than 2500 years. The main products are:
- Housing components that do not require high timber strength.
- Aircraft fittings requiring light wood.
- Veneers for plywood and for facing lower quality wood.
- Furniture, especially drawers. This is because the wood fits snugly and is insect-resistant. In Japan it is used to make tonsui (dowry chests).
- Musical instruments, particularly sounding boards.
- Barrels, especially those used for acids, wine, etc.
- Beehives, for which light-weight and good insulating properties are needed.
- Aqueducts, in rural areas.
- Handcrafts, because the wood is easy to carve and turn.
- Rice bowls and other utensils, especially in earlier times.
- Wooden boxes for gifts or storage of paintings and scrolls.
- Charcoal for fireworks and filters.
- Wood pulp – which is white and strong.
- Wood shavings for packaging and insulation.
- Packaging, especially light crates.
- Coffins (an ancient use in China).
- Pattern-making, where timber stability is required.
The popularity of the wooden surfboard has been on the increase in recent times with technology playing a part in producing a quality product. Paulownia is the premier wood for producing surfboards because it has a good weight to strength ratio, is light, and absorbs less salt water than many other types of wood. Paulownia surfboards are usually finished with a natural oil which prevents damage from sun on the board and salt drying on the surface.