Glossary

Adhesive Terminology – T

由 Shawn 撰写  |  2010/08/05 07:32 发表在 Glossary, Terminology  |  评论 (0)

Tack – The property of an that enables it to form a bond of measurable strength immediately after and substrate are brought into contact under low pressure. Same as aggressive tack.

Tack range – The period of time in which an adhesive will remain in the tacky-dry condition after application to a substrate, under specified conditions of temperature and humidity.

Tack, dry – The property of certain adhesives, particularly nonvulcanizing rubber adhesives, to adhere on contact to themselves at a stage in the evaporation of volatile constituents, even though they seem to dry to the touch.

Tackiness – The stickiness of the surface of a sealant or adhesive.

Tangential Grain – Grain orientation in wood in which annual rings are approximately parallel to the wide surface. Also called Flat or Plain Sawn.

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Adhesive Terminology – S

由 Shawn 撰写  |  2010/08/05 07:32 发表在 Glossary, Terminology  |  评论 (0)

Sandability – Sandability is a relative term used to explain the performance of dried glue when sanded. Good sandabilty is achieved when glue that has been sanded does not gum up the sanding belt.

SARA – Superfund Amendments and Reauthorization Act.

Saw Kerf – The saw blade thickness taken out by the saw as it travels through the rough stock. Saw kerfs are usually 1/8, 3/16, 1/4, and 5/16.

Self-vulcanizing – Pertaining to an that undergoes vulcanization without the application of heat.

Sensitization – A state of immune response in which further exposure elicits an immune or allergic response.

Set – To convert an adhesive into a fixed or hardened state by chemical or physical action, such as condensation, polymerization, oxidation, vulcanization, gelation, hydration, or evaporation of volatile constituents.

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Adhesive Terminology – R

由 Shawn 撰写  |  2010/08/05 07:32 发表在 Glossary, Terminology  |  评论 (0)

Radial Grain – Grain orientation in wood in which annual rings are approximately perpendicular to the wide surface. Also called Quarter Sawn.

Radio Frequency Gluing System – Radio Frequency Gluing is a process in which high radio frequency waves are used to heat substrates, causing the between them to dry.

Radio Frequency – Frequencies from 10 Kilohertz to 3,000 Gigahertz.

Random Width – Lumber ripped to no specific width. Used as edge glued stock. Defecting is done here as well as in specific width ripping.

Reactance – Opposition to the flow of alternating current.

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Adhesive Terminology – Q

由 Shawn 撰写  |  2010/08/05 07:31 发表在 Glossary, Terminology  |  评论 (0)

Q – The measurement of resonance or frequency selectivity

Quarter Sawn – Grain orientation in wood in which annual rings are approximately perpendicular to the wide surface. Also called Radial Sawn.

Adhesive Terminology – P

由 Shawn 撰写  |  2010/08/05 07:31 发表在 Glossary, Terminology  |  评论 (0)

Parallel Heating – Radio Frequency Press configuration in which RF current is conducted along the glue lines in edge-gluing presses. The flow of the RF current is parallel with the glue lines.

Particleboard – A manufactured core material consisting of wood particles and a binder bonded under heat and pressure.

Paste – An composition having a characteristic plastic-type consistency, that is, a high order or yield value, such as that of a paste prepared by heating a mixture of starch and water and subsequently cooling the hydrolyzed product.

Peel test – A test of an adhesive using one rigid and one flexible substrate. The flexible material is folded back (usually 180°) and the substrates are peeled apart. Strength is measured in pounds per inch of width.

PEL – Permissible Exposure Limit.

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Adhesive Terminology – O

由 Shawn 撰写  |  2010/08/05 07:31 发表在 Glossary, Terminology  |  评论 (0)

Ohm – Unit of resistance (R).

Open Assembly Time – Period of assembly time when the film is exposed to the air.

Open time – The time that the glue may be left open to the air after application. Same as working time. Same as open assembly time.

Open Time – Alternate term for Assembly Time – The time period from the application ot the adhesive until the final application of pressure.

OSHA – Occupational Safety and Health Administration.

Oxygen bomb test – A special aging test given to adhesives. Five hundred hours exposure to the condition in this test generally indicates whether a product will provide a good deal of service over a long range period of time.

Adhesive Terminology – N

由 Shawn 撰写  |  2010/08/05 07:30 发表在 Glossary, Terminology  |  评论 (0)

Nano – Prefix meaning one-billionth.

NFPA – National Fire Prevention Association.

NIOSH – National Institute of Occupational Safety and Health.

Nip Roll – A pressure system designed to apply a large amount of pressure for an instant. This system is frequently used for hot melt, fast-set adhesives, or contact cements.

Non-porous substrate – A substrate that is not permeable by air, water, etc.

Nonflammable – Incapable of being easily ignited or burned.

NWWDA – National Wood Window and Door Association.

Adhesive Terminology – M

由 Shawn 撰写  |  2010/08/04 12:38 发表在 Glossary, Terminology  |  评论 (0)

Matching network – A combining of capacitors and/or inductors used for bringing the tuning into resonance.

Matrix – The part of an which surrounds or engulfs embedded filler or reinforcing particles and filaments.

MDF – Medium Density Fiberboard.

Mega – Prefix meaning one million (M).

Membrane Press – A hot press design which permits laminates or veneer to be glued to a surface that is not flat, by using a rubber membrane that is inflated with a hot fluid.

Micro – Prefix meaning one millionth part (m).

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Adhesive Terminology – L

由 Shawn 撰写  |  2010/08/04 12:38 发表在 Glossary, Terminology  |  评论 (0)

Laminate, (noun) – A product made by bonding together two or more layers of material or materials.

Laminate, (verb) – To unite layers of material with .

Laminated, cross – A laminate in which some of the layers of material are oriented at right angles to the remaining layers with respect to the grain or strongest direction in tension.

Laminated, parallel – A laminate in which all of the layers of material are oriented approximately parallel with respect to the grain or strongest direction in tension.

Legging – The drawing of filaments or strings when adhesive-bonded substrates are separated.

Load – The material being heated.

Longitudinal Grain – Grain orientation in which wood fibers are parallel to the length of the tree.

Lumber – Raw material obtained from the dry kiln – random width, rough boards.

Lumber Yield – The percent of usable, defect-free lumber that can be cut from a rough cutting, board, or bundle of lumber.

LVL – Laminated Veneer Lumber (LVL) construction consisting of parallel veneer laminations.

Adhesive Terminology – K

由 Shawn 撰写  |  2010/08/04 12:37 发表在 Glossary, Terminology  |  评论 (0)

Kiln – A heated chamber for drying lumber. Temperature, humidity, and air circulation are all controlled within the drying area.

Kilo – Prefix meaning one thousand (K).

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