Pressed Wood


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Wood, Pressed

 

a building material, wood subjected to compression at right angles to the grain under pressures as high as 30 meganewtons per sq m (300 kilograms-force per sq cm). Pressed wood has a density of 1,200 to 1,450 kg per cu m; depending on type of pressing, it is designated as compressed from one side or two, or as compressed to contour. One-sided compression is done by pressing beams of wood in a single direction across the grain, and two-sided compression involves pressing in two directions. The second method provides greater density. Pressing to contour is done by pressing a cylindrical stock of wood into a metal cylinder of smaller diameter. The breaking point for pressed wood under static bending or compression with the grain, as well as the hardness of the butt-end surface, is two to three times that of natural wood. Pressed wood replaces ferrous and nonferrous metals and textolite in industry and is used to make loom picker sticks, sliding bearings subject to abrasive wear, and other products.

REFERENCES

Khukhrianskii, P. N. Pressovanie drevesiny, 3rd ed. Moscow, 1964.
Spravochnik fanershchika. Moscow, 1968.

A. N. KIRILLOV

References in periodicals archive ?
We offer you a large range of pallets like the Euro pallet, which is usually made of wood and pallets made of other materials such as plastic, pressed wood or metal.
Sources of formaldehyde include pressed wood products - such as particle board, hardwood, plywood panelling and MDF, paints, adhesives, varnishes and floor finishes and household products such as wallpaper, cardboard and paper products.
Nelson pressed Wood to say the rate of payment errors the OIG had identified in Carousel Pediatrics' records, stressing that Doug Wilson, inspector general at the Health and Human Services Commission, testified that the average payment error rate for unjustifiable claims investigators have identified is above 90 percent.
Junior Achievement Namibia Country Director, Johanna Cloete said "Phineas saw the need of people in Area 7 for pine wooden beds, chairs and pressed wood cabinets.
Remove porous materials, such as carpet, drywall, ceiling tiles and pressed wood furnishings immediately.
People are buying pure papers printed on pressed wood but they are equally getting their news in many other forms.
Some VOCs are even known to be carcinogenic, like benzene in tobacco smoke, perchloroethylene (aka "perc") in dry-cleaning fluid, methylene chloride in paint strippers, and formaldehyde in pressed wood products like particleboard.
The EPA's Investigation of Formaldehyde Emissions from Pressed Wood Products followed a petition filed March 24, 2008, by the Sierra Club and other groups and individuals.
Coating or sealing pressed wood products with water-based polyurethane may also reduce off-gassing; however, all surfaces and edges must be sealed.
One such model that has recently caught my eye is this rather organically shaped, pressed wood bottle holder designed by Chantal Drenthe and available from Dutch by Design, www.
Environmental Protection Agency labels "environmental tobacco smoke, asbestos from insulating and fire-retardant building supplies, formaldehyde from pressed wood products, paints, adhesives, copying machines, and photography and print shops, biological contaminants from dirty ventilation systems or water-damaged walls, ceilings, and carpets, and pesticides from pest management practices" as common contributors to unhealthy IAQ.
Potential sources of indoor air pollution include central heating, cooling and dehumidification systems; household cleaning and maintenance products; outdoor sources such as pesticides; biological contaminants such as animal dander, mold and cockroaches; formaldehyde from fabrics, pressed wood products and insulation; styrene found in adhesives, foam, lubricants, plastics carpets and insulation; and paint-strippers.