ISO 17893:2004 鋼線ロープ—用語, 語彙、指定および分類 | ページ 5

2.1.1.1

アウターワイヤー

ロープの外層に配置されたワイヤー

2.1.1.2

アウターワイヤー

ロープの外側のストランドのワイヤの外層に位置するワイヤ

2.1.2.1

inner wire

wire of the intermediate layers of a rope positioned between the centre wires and outer layer

2.1.2.2

inner wire

any wire of a rope other than its centre wires, filler wires, core wires or outer wires

2.1.4.1

centre wire

wire positioned at the centre of a rope

2.1.4.2

centre wire

wire positioned at the centre of the strands of a rope

2.2.1

strand

element of rope normally consisting of an assembly of wires of appropriate shape and dimensions laid helically in the same direction in one or more layers around a centre

Note 1 to entry: Strands containing three or four wires in the first layer, or certain shaped strands (e.g. ribbon), might not have a centre.

2.2.2

round strand

strand with a perpendicular cross-section which is approximately the shape of a circle

Figure 1 — Round strand with different centres

a)Strand with one centre wire

b)Strand with (1-6) built-up centre

2.2.3

triangular strand

V

strand with a perpendicular cross-section which is approximately the shape of a triangle

Note 1 to entry: Triangular strands can have built-up centres.

Figure 2 — Triangular strand with triangular (V) centre wire

2.2.4

oval strand

Q

strand having a perpendicular cross-section which is approximately the shape of an oval

Figure 3 — Oval strand

2.2.5

flat ribbon strand

P

strand without a centre wire, having a perpendicular cross-section which is approximately the shape of a rectangle

Figure 4 — Flat ribbon strand

2.2.6

single lay strand

strand which contains only one layer of wires

Figure 5 — Single lay strand

2.2.7

parallel lay strand

equal lay

strand which contains at least two layers of wires, all of which are laid in one operation (in the same direction)

Note 1 to entry: The lay lengths of all the wire layers are equal and the wires of any two superimposed layers are parallel, resulting in linear contact.

2.2.8

Seale

parallel lay strand construction with the same number of wires in both layers

Figure 6 — Seale construction

2.2.9

Warrington

parallel lay strand construction having an outer layer containing alternately large and small wires and twice the number of wires as the inner layer

Figure 7 — Warrington construction

2.2.10

filler

parallel lay strand construction having an outer layer containing twice the number of wires than the inner layer, with filler wires laid in the interstices between the layers

Figure 8 — Filler construction

2.2.11

combined parallel lay

parallel lay strand construction having three or more layers laid in one operation and formed from a combination of strand types Warrington (2.2.9) and Seale (2.2.8)

Figure 9 — Example of Warrington-Seale combined parallel lay

2.2.12

multiple operation lay strand

construction containing at least two layers of wires in which successive layers are laid in more than one operation

2.2.13

cross-lay

M

strand which contains more than one layer of wires, all laid in the same direction, the wires of superimposed wire layers crossing one another and making point contact

2.2.14

compound lay

N

strand which contains a minimum of three layers of wires where the outers layer is laid in a separate operation, but in the same direction as the others, over a parallel lay construction forming the inner layers

2.2.15

compacted strand

K

strand which has been subjected to a compacting process such as drawing, rolling or swaging whereby the metallic cross-sectional area of the wires remains unaltered whereas the shape of the wires and the dimensions of the strand are modified

Figure 10 — Compacted round strand

a)Strand before compacting

b)Strand after compacting

2.3.1

core

central element of a round rope around which are laid helically the strands of a stranded rope or the unit ropes of a cable laid rope

2.3.2

fibre core

FC

core made from either natural fibres (NFC) or synthetic fibres (SFC)

Note 1 to entry: Fibre cores are normally produced in the sequence fibres to yarns, yarns to strands and strands to rope.

2.3.3

steel core

WC

core made from steel wires arranged as a wire strand (WSC) or as an independent wire rope (IWRC)

Note 1 to entry: The steel core and/or its outer strands can also be covered with either fibre or solid polymer.

Note 2 to entry: The stranded rope core is normally made as a separate unit, the exception being where the core is closed in parallel with the outer strands, designated PWRC.

2.3.4

solid polymer core

SPC

core consisting of a solid polymer material having a round shape or a round shape with grooves, and which can also contain an internal element of wire(s) or fibre

2.4.1

rope lubricant

material applied during the manufacture of a strand, core or rope for the purpose of reducing internal friction and/or assisting in providing protection against corrosion

2.4.2

impregnating agent

material used in the manufacture of natural fibre cores, coverings or inserts for the purpose of assisting in inhibiting rotting and decay

2.4.3

preservation agent

material, usually some form of blocking compound, applied during and/or after manufacture of the rope and/or to fibre inserts and coverings for the purpose of assisting in providing protection against corrosion

2.6.2.1

spiral rope

assembly of at least two layers of wires laid helically over a centre round wire, built-up strand or parallel-lay strand, with at least one layer of wires being laid in the opposite direction, i.e. contra-lay, to that of the outer layer(s)

2.6.2.2

spiral strand rope

spiral rope comprising only round wires

Figure 18 — Example of spiral strand rope

2.6.2.3

half-locked coil rope

spiral rope having an outer layer of half-locked (H-shaped) and round wires

Figure 19 — Example of half-locked coil rope

2.6.2.4

full-locked coil rope

spiral rope having an outer layer of full lock (Z-shaped) wires

Figure 20 — Example of full-locked coil rope

2.6.3.1

solid polymer-covered rope

rope covered (coated) with a solid polymer

2.6.3.2

solid polymer-filled rope

rope in which the free internal spaces are filled with a solid polymer that extends to, or slightly beyond, the outer circumference of the rope

Figure 21 — Solid polymer filled rope

2.6.3.3

solid polymer covered and filled rope

rope which is covered (coated) and filled with a solid polymer

2.6.3.4

cushioned core rope

rope in which the core is covered (coated), or filled and covered (coated), with a solid polymer

Figure 22 — Cushioned core rope

2.6.3.5

cushioned rope

rope in which the inner layers, inner strands or core strands are covered with solid polymers or fibres to form a cushion between adjacent strands or overlying layers

2.7.1

dimension of round wire

diameter (δ) of the perpendicular cross-section of the wire

2.7.2

dimension of outer round wire

diameter (δ_a) of the perpendicular cross-section of the outer wire

2.7.3.1

dimension of shaped wire

height of the wire

2.7.3.2

dimension of shaped wire

height and width of the wire

Figure 23 — Half-lock and full-lock wire sections

2.8.1

lay direction of strand

z, s

direction, right (z) or left (s), corresponding to the direction of lay of the outer wires in relation to the longitudinal axis of the strand

Figure 30 — Lay direction of strands for stranded ropes

a)z (right lay)

b)s (left lay)

2.8.2

lay direction of rope

Z, S

direction, right (Z) or left (S), corresponding to the direction of lay of the outer wires in a spiral rope, the outer strands in a stranded rope or the unit ropes in a cable-laid rope in relation to the longitudinal axis of the rope

2.8.3

ordinary lay

sZ, zS

stranded rope in which the direction of lay of the wires in the outer strands is in the opposite direction to the lay of the outer strands in the rope

Note 1 to entry: The first letter of the symbol denotes strand direction; the second rope direction.

Figure 31 — Ordinary lay

a)Right (sZ)

b)Left (zS)

2.8.4

lang lay

zZ, sS

stranded rope in which the direction of lay of the wires in the outer strands is in the same direction as the lay of the outer strands in the rope

Note 1 to entry: The first letter of the symbol denotes strand direction; the second rope direction.

Figure 32 — Lang lay

a)Right (zZ)

b)Left (sS)

2.8.5

alternate lay

aZ, aS

stranded rope in which the direction of lay of wires in the outer strands is alternately left and right such that half of the rope is ordinary lay while the other half is lang lay and the lay direction of the rope will be either right (aZ) or left (aS)

2.8.6

contra-lay

:

rope in which at least one layer of wires in a spiral rope or one layer of strands in a stranded rope is laid in the opposite direction to the other layers

Note 1 to entry: Contra-lay is only possible in spiral ropes having more than one layer of wires and in stranded ropes (e.g. rotation-resistant) having more than one layer of strands.

2.8.7

spring lay

rope containing three steel wire strands laid alternately with three fibre strands

2.9.1

nominal value

conventional value by which the property is designated

Note 1 to entry: The symbol does not have a suffix.

2.9.2

minimum value

specified value, associated with a property, below which the measured value is not allowed to fall

Note 1 to entry: The symbol has an inferior (i.e. subscript) suffix “min”.

2.9.3

calculated value

value obtained by calculation based on given or measured values and on conventional factors

Note 1 to entry: The symbol has an inferior (i.e. subscript) suffix “c”.

2.9.4

manufacturer's design value

any value (e.g. wire size, lay length, calculated minimum breaking force, spinning loss) which is specified in a rope design

2.9.5

reduced value

value of area or breaking force taking into account the reduction corresponding to the area or strength otherwise contributed by the non-load bearing wires

Note 1 to entry: The symbol has an inferior (i.e. subscript) suffix “red”.

2.9.6

measured value

value derived by direct measurement in the prescribed manner

Note 1 to entry: The symbol has an inferior (i.e. subscript) suffix “m”.

2.10.1

fill factor

f

ratio between the sum of the nominal metallic cross-sectional areas of all the wires in the rope (A) and the circumscribed area (A_u) of the rope based on its nominal diameter (d)

2.10.2

nominal metallic cross-sectional area factor

C

factor derived from fill factor and used in the calculation to determine the nominal metallic cross-sectional area of a rope

2.10.3

nominal metallic cross-sectional area

A

product of the nominal metallic cross-sectional area factor (C) and the square of the nominal rope diameter

2.10.4

calculated metallic cross-sectional area

A_c

2.10.5

measured metallic cross-sectional area

A_m

2.10.6

rope length mass factor

W

factor which takes into account the mass of core and lubricant as well as the metallic elements

2.10.7

nominal rope length mass

M

2.10.8

measured rope length mass

M_m

mass of rope, as determined by weighing, expressed in kilograms per 100 m

2.10.9

minimum breaking force factor

K

Note 1 to entry:K factors for the more common rope classes and constructions are given in the respective steel wire rope product standards.

2.10.10

minimum breaking force

F_min

2.10.11

rope grade

R_r

level of requirement of breaking force which is designated by a number

Note 1 to entry: It does not imply that the actual tensile strength grades of the wires in the rope are necessarily of this grade.

2.10.12

calculated minimum breaking force

F_c.min

value of minimum breaking force based on the nominal wire sizes, wire tensile strength grades and spinning loss factor for the rope class or construction as given in the manufacturer's rope design

2.10.13

measured breaking force

F_m

breaking force obtained using a prescribed method

2.10.14

minimum aggregate breaking force

F_e.min

2.10.15

calculated minimum aggregate breaking force

F_e.c.min

value of minimum aggregate breaking force obtained by calculation from the sum of the products of cross sectional area (based on nominal wire diameter) and tensile strength grade of each wire in the rope, as given in the manufacturer's rope design

2.10.16

reduced minimum aggregate breaking force

F_e.red.min

specified value below which the measured reduced aggregate breaking force is not allowed to fall and which is obtained by calculation from the sum of the products of cross-sectional area (based on nominal wire diameter) and tensile strength grade of each agreed load bearing wire in the rope

2.10.17

measured aggregate breaking force

F_e.m

sum of the measured breaking forces of all the individual wires taken from the rope

2.10.18

measured reduced aggregate breaking force

F_e.red.m

sum of the measured breaking forces of the agreed load bearing wires taken from the rope

2.10.19

calculated measured breaking force

F_m.c

product of the sum of the measured breaking forces of individual wires after they have been taken out of the rope and the partial spinning loss factor obtained from the results of type testing

2.10.20

calculated measured aggregate breaking force

F_e.m.c

value obtained by dividing the measured breaking force (F_m) of the rope by the partial spinning loss factor obtained from the results of type testing

2.10.21

measured total spinning loss

difference between the measured aggregate breaking force, before rope making, and the measured breaking force of the rope

2.10.22

measured partial spinning loss

difference between the measured aggregate breaking force (F_e.m), after rope making, and the measured breaking force of the rope (F_m)

2.10.23

spinning loss factor

k

ratio between either the calculated minimum aggregate breaking force (F_e.c.min) and the calculated minimum breaking force (F_c.min) of the rope or the specified minimum aggregate breaking force (F_e.min) and the specified minimum breaking force (F_min) of the rope, as determined from the rope maker's design

2.10.24

measured total spinning loss factor

k_m

ratio between the measured breaking force (F_m) of the rope and the measured aggregate breaking force of the rope, before rope making

2.10.25

measured partial spinning loss factor

k_p.m

ratio between the measured breaking force (F_m) of the rope and the measured aggregate breaking force of the rope (F_e.m), after rope fabrication

2.10.26

outer wire diameter factor

a

factor used in the calculation of the approximate diameter of the outer wires of a rope

2.10.27

approximate outer wire diameter

δ_a

2.11.1

torque

torsional characteristic determined by test or calculation the value of which is usually expressed in newton metres at a stated tensile loading when both rope ends are prevented from rotating

2.11.2

turn

rotational characteristic determined by test or calculation the value of which is usually expressed in degrees or turns per unit length at a stated tensile loading and determined by test when one end of the rope is free to rotate

2.11.3

fully preformed rope

rope in which the wires in the strands and strands in the rope have their internal stresses reduced, resulting, after removal of any serving, in a rope formation out of which the wires and the strands will not spring

2.12.1

rope class

grouping of ropes of similar mechanical properties and physical characteristics

Note 1 to entry: For classification details, see Clause 4.

2.12.2

rope construction

detail and arrangement of the various elements of the rope

Note 1 to entry: For designation details, see Clause 3.