ISO 2074:2007 合板 — 語彙 | ページ 2

2.1

plywood

wood-based panel consisting of an assembly of layers typically veneers, glued together with the direction of the grain in adjacent layers usually at right angles

2.2

balanced plywood

plywood in which the outer and inner layers are symmetrical about the centre layers with respect to thickness, grain orientation and mechanical and physical performance or species

2.3

veneer plywood

plywood in which all the layers are made of veneers oriented parallel to the plane of the panel

2.4

blockboard

plywood, the core of which is made of strips of solid wood more than 7 mm wide but not wider than 30 mm, which may or may not be glued together

2.5

battenboard

plywood, the core of which is made of strips of solid wood more than 30 mm wide but not wider than 76 mm, which may or may not be glued together

2.6

laminboard

plywood, the core of which is made of strips of veneer, not thicker than 7 mm placed on edge, which are typically glued together

2.7

composite plywood

plywood, the core (or certain layers) of which is made of materials other than solid wood or veneers. There are at least two crossbanded layers on each side of the core

2.8

moulded plywood

plywood which is not flat, made by pressing in a mould

2.9

long-grain plywood

plywood in which the grain of the outermost plies is parallel or nearly parallel to the long edge of the panel

2.10

cross-grain plywood

plywood in which the grain of the outermost plies is parallel or nearly parallel to the short edge of the panel

3.1

layer

either one ply, or two or more plies glued together with their grain direction parallel or a material other than wood

3.2

cross band

inner layer with grain direction at right angles to the outer layers

3.3

core

3.4

veneer

thin sheet of wood generally not more than 6 mm in thickness

3.5

sliced veneer

veneer that is sliced off by moving a log, bolt, or flitch laterally against a knife or vice versa

3.6

rotary-cut veneer

veneer cut in a continuous ribbon by centering the entire log or bolt in a lathe and rotating it against a knife

3.7

peeled veneer

See 3.6.

3.8

semi rotary-cut veneer

veneer cut purposely in a non continuous ribbon in rotary veneer lathe

3.9

sawn veneer

veneer produced by sawing

3.10

ply

in a panel, either one single veneer or two or more veneers joined edge to edge or end to end

4.1

surface

visible part of outermost plies of a plywood exclusive of edge

4.2

face

better-quality surface of a plywood or both surfaces when outer veneers are of equal quality

4.3

back face

opposite surface to the face

4.4

length of a plywood panel

dimension in the direction of the grain of the outermost plies

4.5

width of a plywood panel

dimension in the direction at right angle to the length

4.6

thickness of a plywood panel

dimension perpendicular to the surface of the panel

4.7

butt joint

square-ended joint between two pieces of veneer or panels

4.8

scarf joint

sloping cut joint made at the end of two pieces of veneer or panels

5.1

grain

general direction or arrangement of fibres

5.2

angle grain

grain forming an oblique angle with the edges of a ply

5.3

spiral grain

grain that follows a spiral course around the pith

5.4

interlocked grain

characteristic of a wood where the fibres in succeeding growth periods inclined alternately in opposite directions

5.5

veining

network formed by veins of wood on the surface of veneer

5.6

curly grain

grain that follows tight irregular curves

5.7

knot

portion of a branch embedded in the veneer

5.8

intergrown knot

knot which is adhering for at least ¾ of its perimeter with the surrounding veneer

5.9

partially intergrown knot

knot which is adhering for ¼ to ¾ of its perimeter with the surrounding veneer

5.10

non-adhering knot

knot which is adhering for less than ¼ of its perimeter with the surrounding veneer

5.11

knot hole

void produced by the removal of a knot

5.12

sound knot

knot not affected by rot

5.13

pin knot

round or oval knot sound intergrown or partially intergrown with a maximum size of 3 mm

5.14

check

separation of the fibres which does not extend through the thickness of the veneer

5.15

split

separation of the fibres extending through the thickness of the veneer

5.16

stain

discoloration

any variation from the natural colour of wood, which is not associated with a loss of strength

5.17

resin pocket

cavity within a veneer containing or that has contained natural wood resin

5.18

bark pocket

cavity within a veneer containing or that has contained bark

5.19

fungal decay

bio-deterioration caused by fungi

6.1

roughness

unevenness of the surface due to irregularities of the structure of the wood or due to a manufacturing variation

6.2

open joint

gap between two adjacent elements within a ply

6.3

overlap

overlapping of two adjacent veneers (or two sections of a split veneer) in a ply

6.4

blister

local separation between plies created by no adherence

6.5

bump

local area of over-thickening showing in an outermost ply

6.6

hollow

local depression in an outermost ply

6.7

imprint

local indentation caused by a foreign matter being pressed into a surface

6.8

inclusion

foreign matter embedded in a veneer

6.9

bond failure

failure of the adhesion of two plies

7.1

one side sanded plywood

plywood which is fully sanded on the face to produce a uniformly smooth finish

7.2

unsanded plywood

plywood, the face and back of which have not been smoothed or finished beyond the peeling process

7.3

touch-sanded plywood

plywood, (a) surface(s) of which has (have) been mechanically sanded selectively to remove surface irregularities or repaired materials and/or reduce panel thickness variations

7.4

two sides sanded plywood

plywood which is fully sanded on both surfaces to produce a uniformly smooth finish

7.5

scraped plywood

plywood the face and/or back of which have been smoothed by means of a mechanical scraper

7.6

overlaid plywood

7.7

pre-finished plywood

plywood the surface of which is finished with paint, varnish or other surface coatings

7.8

textured plywood

plywood modified by mechanical method to create greater surface relief

7.9

veneered plywood

plywood overlaid by a decorative wood veneer

7.10

sanding through

local absence of the outer ply resulting from excessive sanding which reveals some of the glue line (and/or the underlying ply)

7.11

glue penetration

glue which has seeped through the outer ply and which can show up as blemishes

7.12

inserting

repairing of a ply by an element of determinated-shaped-sound veneer, inserted to replace defective portions which have been previously removed

7.13

patch

plug

piece of determined shaped veneer for inserting

7.14

shim

piece of long, narrow veneer for inserting

7.15

filling

repairing by filler sealing of open defects

7.16

bond

adhesion between or within plies or layers of a plywood panel

7.17

lay-up, construction

arrangement of layers in a plywood panel

7.18

composition

description of constituent elements of plywood panel

7.19

bow

curvature of a plywood panel across the length or width

7.20

twist

spiral distortion of a plywood panel