Want to know what plywood is, first of all you have to understand how it is made, that is, the production process of plywood...

Plywood production requires a good log, called a peeler, which is generally straighter and larger in diameter than one required for processing into dimensioned lumber by a sawmill. The log is laid horizontally and rotated about its long axis while a long blade is pressed into it, causing a thin laye

In 1797 Samuel Bentham applied for patents covering several machines to produce veneers. In his patent applications, he described the concept of laminating several layers of veneer with glue to form a thicker piece – the first description of what we now call plywood.[3] Bentham was a British naval e

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Plywood factory layout

Multilayer plywood has the following advantages and disadvantages:The advantages of multilayer plywood:Multi-layer plywood has always been an ideal material for making furniture. Because it is a multi-layer plywood, it is harder and has a more stable structure than other boards. It is also beautiful

The plywood production line refers to a kind of artificial board which is rotated into a single board by a rotary cutting machine, and then the single board is glued and pressed perpendicularly to each other in the fiber direction.Plywood is an ideal product for a wide range of applications in build

The most commonly used thickness range is from 1⁄8 to 3.0 inches (3.2 to 76.2 mm). The sizes of the most commonly used plywood sheets are 4 x 8 feet (1220 x 2440 mm) which was first used by the Portland Manufacturing Company, who developed what we know of as modern veneer core plywood for the 1905 P

Different varieties of plywood exist for different applications:Softwood plywood[edit]Softwood plywood is usually made either of cedar, Douglas fir or spruce, pine, and fir (collectively known as spruce-pine-fir or SPF) or redwood and is typically used for construction and industrial purposes.[7]The

plywood grading rules differ according to the country of origin. The most popular standards are the British Standard (BS) and the American Standard (ASTM). Joyce (1970), however, list some general indication of grading rules:GradeDescriptionAFace and back veneers practically free from all defects.A/