GOST 10505-76

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  ГОСТ 10505-76

GOST 10505−76 hoist closed wire Ropes. Technical specifications (with Changes 1−5 N, adjusted)

GOST 10505−76

The Group Of 75

STATE STANDARD OF THE USSR

HOIST CLOSED WIRE ROPES

Specifications

Closed steel wire ropes for lifting purposes. Specifications

OKP 12 5100, 12 5200

Valid from 01.01.78
before 01.07.96*
_______________________________
* Expiration removed
Protocol 5−94 N Interstate Council
for standardization, Metrology and certification
(IUS N 11/12, 1994). — Note
manufacturer database.

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of metallurgy of the USSR

DEVELOPERS:

I. N. Nagovisi, N. Galkin, I. A. Lobanov

2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from 02.06.76 N 1366

3. REPLACE GOST 10505−63

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. Validity extended until 01.07.96 by the Resolution of Gosstandart of the USSR from 27.12.90 N 3374

6. REPRINT (March 1993), with Changes N 1, 2, 3, 4, 5, approved in April 1982, August 1983, may 1986, October 1987, December 1990 (IUS 7−82, 11−83, 8−86, 1−88, 4−91).


AMENDED, published in the IUS N 8, 2002

An amendment made by the manufacturer of the database


This standard applies to steel closed lifting ropes used in coal and mining industry.

Safety requirements for products described in paragraphs.1.11, 1.13−1.18, 3.1, 3.3, 3.6−3.9.

(Amendment. ICS N 8−2002)

Sec. 1. (Deleted, Rev. N 5).

1a. CLASSIFICATION

1a.1. The ropes are made

for precision manufacturing:

normal exactly

increased accuracy — T;

by way of lay:

prosrochena — N,

unwinding — R;

direction of lay:

the right direction

the left direction L.

Note. The direction of lay of the rope is determined by the direction of lay of the wires of the outer layer.


mechanical properties of the wire:

mark,

mark I — I;

for the purpose:

gruzolyudskie — GL,

cargo — G.

Note. For gruzopodemnogo assignments apply ropes of the brand V.


according to the type of surface finish of wire:

from wire without coating,

galvanized wire for medium to aggressive working conditions;

with the cathodic protection of a rope (galvanized round and shaped wire without coating) — PZ.

Note. Ropes with cathodic protection manufactured according to customer’s demands.


according to the degree of cruciotti:

makrushina — MK.

To the ropes of the highest quality are the ropes of the brand, manufacturing high precision, prescripcialis.

1… (Added, Rev. N 3).

1. TECHNICAL REQUIREMENTS

1.1. (Deleted, Rev. N 3).

1.2. The ropes shall be made of round wire without coating or galvanized by the group, brands and I according to GOST 7372 and shaped wire without coating or galvanized according to normative-technical documentation.

The ropes should produce for technological regulations approved in the prescribed manner.

(Changed edition, Rev. N 1, 3).

1.3. The ropes are made with the right direction of lay of the wires of the outer layer, if the direction of lay is not specified with the consumer. The direction of lay of wires in the upper two adjacent layers should alternate.

The direction of lay of wires in layers on the inside of the rope is determined by the manufacturer.

(Changed edition, Rev. N 3).

1.4. The first three layers of round wires of a rope when counting from the Central wire needs to Sivitsa the type of linear touch, following — on type touch point.

1.5. The step length of lay of the rope separately and are weaving the crown layers of wires should not exceed 9 times the diameter respectively, are weaving the crown layer.

The rope should have throughout its length the same ratio of step lay.

1.6. The ropes should not be broken, twisted and kinked wires.

Wire in layers should not have Zapadni of protrusions and perekrashivaniya. The surface of the wires should not have dents, rust and should not be tapered or cut.

1.7. With the lay wire rope should have uniform tension. All wire in the rope to fit the wires of the underlying layers. The Z-shaped wire layers must adhere to each other, forming a connection lock. Between the shaped wires allowed the clearance does not violate the lock rope.

1.8. Wire rope must be connected by butt welding or high temperature soldering. As recommended solder brass brand Л060−1 according to GOST 15527*.
_______________
* Valid GOST 15527−2004. — Note the manufacturer’s database.

The joints should not be brittle and thickened. Distance between joints of the individual wires in each layer shall be at least five steps of lay of rope.

The number of welds of the outer wires should be no more than three at the 500 m length of rope.

(Changed edition, Rev. N 1).

1.9. Wire ropes should be lubricated over the entire surface. Applying lubricant to wire produce when you lay them in the rope.

As lubricants to be applied Torsiol-55 according to GOST 20458, Torsiol-35 at the normative and technical documentation or other grease according to normative-technical documentation.

By agreement between manufacturer and consumer, the ropes can be lubricated friction anti-corrosion grease or at the request of the consumer can be oil-free cable grease on the outer surface.

(Changed edition, Rev. N 1, 3, 5).

1.10. At the ends of the rope must be imposed at least three clamps that protect the ends of the rope from the relaxation, and the ends of the wire at the end of the cable shall be connected by welding.

1.11. The rope diameter should match the diameter specified in GOST 10506.

Limit deviations of the diameter of the rope shall not exceed:

for cables manufacturing high precision ±2% for diameters up to 38 mm, ±0.75 mm — for diameters St. 38 mm;

for ropes of normal manufacturing accuracy % for all diameters.

(Changed edition, Rev. N 2, 3, 5).

1.12. Rope length is set by the user. Maximum deviations along the length of the rope must not exceed:

+2% — if length of a rope of up to 500 m;

+1% — the length of the rope more than 500 m.

1.13. The ropes should be made of round wires according to GOST 7372 marking groups to rupture strength 1570 N/mm(160 kgf/mm) — 1960 N/mm(200 kg/mm) and profiled wires according to normative-technical documentation marking groups for temporary tensile strength 1270 N/mm(130 kgf/mm) — 1570 N/mm(160 kgf/mm).

Allowed reduction in the number of kinks and twists round wire taken from the wire on one bend and one twist compared to GOST 7372, and shaped into two twisting compared to the normative-technical documentatie

th.

1.12, 1.13. (Changed edition, Rev. N 3, 5).

1.14. The run of temporary tear resistance of round wires of each group according to the diameter, taken from the rope, shall not exceed the values given in table.1.

Table 1

The run of temporary tear resistance of each profile shaped wires taken from the rope, shall not exceed the values given in table.2.

Table 2

(Changed edition, Rev. N 2, 3, 5).

1.15. Marking the group of rope on a temporary tear resistance must match the value of the mark groups specified by the user.

To obtain the required breaking strength of the rope used any combination of the marking of groups of round and shaped wire, wherein the wire in each group, the diameter must be of the same marking group.

(Changed edition, Rev. N 2, 3, 5).

1.16. Surface density of zinc and the strength of its adhesion to the steel core round wires — according to GOST 7372, shaped — according to the technical documentation on the forming wire.

(Changed edition, Rev. N 2, 3).

1.17. Allowed 10% of the tested wires taken from the finished rope, a decrease of 5% surface density of zinc, provided that the average surface density of zinc on the wires meets the requirements set out in clause 1.16. The number of wires obtained by computing, rounded to the nearest whole number upward.

(Changed edition, Rev. N 2).

1.18. The total breaking strength of all wires in the rope shall not be less than the estimated value specified in GOST 10506, for a given product group temporary tear resistance.

(Changed edition, Rev. N 2).

1.19. Diameters of round wire ropes can be specified to within ±0,1 mm. is Equal to the diameters of the wires of one layer must be qualified by the same amount.

When you change wire diameters the diameters of the ropes must not exceed the limit deviation specified in claim 1.11.

Change the number of Z-shaped wires in the outer layer round wires and by one in concentric layers, as in layers of alternating X-shaped and round wires — one pair of wires, thus must meet the requirements of the PP.1.7 and 1.11.

2. ACCEPTANCE RULES

2.1. Ropes take parties. The party should be composed of rope of the same size and decorated the same document about quality that contains:

trademark or the name and trademark of manufacturer;

name of the organization, which includes the manufacturer;

the number of rope in the system-the numbering of the manufacturer;

the purpose of the rope;

nominal rope diameter in millimeters;

the coating of the wire;

the direction of lay of the rope;

method of lay of the rope;

the length of the rope in metres;

the gross weight of rope in pounds;

the cross-sectional area of all wires in the rope;

the results of mechanical tests (marking the group of rope on a temporary tear resistance, grade of rope, the total breaking strength of all wires in the rope);

the date of manufacture of the rope;

the designation of the standard assortment.

2.2. The appearance, diameter, mechanical properties of wires of the rope and the superficial density of zinc check on each rope.

Sec. 2. (Changed edition, Rev. N 2).

3. TEST METHODS

3.1. To check the mechanical properties of the wire rope and quality of the surface density of zinc on each rope selected samples with a length of not less than: 1.0 m — cable made of wire without coating; 1.5 m — for rope: galvanized wire.

From the samples of wire ropes is taken in the amount indicated in the table.3.

Table 3

Test results tensile bend and torsion is considered satisfactory if the total cross sectional area of the wires does not meet the requirements of this standard, is not more than 5% of the nominal cross-sectional area of all wires in the rope at 100% strength test and not more than 2% of the nominal cross-sectional area of the rope at 25% strength test of wire rope. Wire not meeting the mechanical properties requirements of this standard, the calculation of the total breaking strength is not accepted.

In case of discrepancy between test results the requirements of this standard allowed a re-test of all wires of the rope marks In and 50% wire rope brand I. the total cross-sectional area of wire rope brand I, does not meet the requirements of this standard shall be not more than 4% of the nominal cross-sectional area of the rope.

(Changed edition, Rev. N 2).

3.2. External control of the rope produce a visually.

3.3. The diameter of the rope is checked in two mutually perpendicular planes caliper according to GOST 166 with divisions of 0.1 mm at a distance of not less than 5 m from the end of the rope.

3.4. The diameters of the wires and check with a micrometer according to GOST 6507 with a scale division of 0.01 mm in cross-section in two mutually perpendicular planes.

3.3, 3.4. (Changed edition, Rev. N 3, 5).

3.5. The rope meets the requirements of neraskruchennosti, if upon release of the ends of the specimen from the clamps and welding the Z-shaped wire out of the castle.

Definition of neraskruchennosti the top layer of shaped wires produced at a distance of at least half of the step lay from designated segments.

3.6. Test wires tensile carried out according to GOST 10446, the calculation of the interim resistance wire under tension is conducted at a nominal size.

At 100% strength test, the total breaking strength of the rope is determined by the amount of explosive efforts of all wires. If the sampling test, the total breaking strength of the rope is defined as the sum of the products of the average values of discontinuous efforts the tested wires of different sizes on a number line.

The correspondence of the calculated temporary tear resistance of the wires specified in the order, check the value of the total breaking strength of the rope, obtained by testing wires, divided by the estimated area of the rope specified in the standard assortment.

When you adjust the wire in accordance with claim 1.19 actual area of the rope is taken according to the specified nominal dimensions of the wires.

The definition of the marking of the group of round wires of a rope is determined by dividing the total breaking strength of all round wires with nominal area of cross section and rounding down to the nearest marking group according to GOST 7372.

3.7. Test wire torsion is carried out according to GOST 1545.

3.8. Testing wires on a bend is carried out according to GOST 1579*.
_______________
* Standards 1579−93. — Note the manufacturer’s database.

3.9. The amount of zinc and strength of its adhesion with the base metal wire test according to GOST 7372.

3.10. Step lay of the rope check with a ruler according to GOST 427 with a scale division of 1 mm at a distance of not less than 5 m from the end of the rope. For the length of the true step lay taking the arithmetic mean of at least three measurements.

(Changed edition, Rev. N 3, 5).

4.PACKAGING, LABELING, STORAGE AND TRANSPORTATION

4.1. The ropes are wound on wooden drums according to GOST 11127, and returnable drums, using them in the prescribed manner.

Formwork reels with grusauskas ropes required.

Packing ropes for the far North and remote areas — according to GOST 15846*.
_______________
* On the territory of the Russian Federation GOST 15846−2002. — Note the manufacturer’s database.

(Changed edition, Rev. N 2, 3, 4).

4.2. The cylinder diameter of the drum shall be not less than 30 times the rope diameter.

The side of the drum should be under the outer layer of rope not less than 50 mm.

On the drum the rope must be laid tight separatornyi rows, without pinching to allow free spooling of rope on drum. The ends of the rope must be securely fixed to the inner cheek of the drum. The end of the rope tied off waste rope and fastened with a nail to her cheek.

(Changed edition, Rev. N 2).

4.3. Each drum must be attached to the metal label, which indicate:

a) trademark or the name and trademark of manufacturer;

b) the number of rope on the numbering system of the manufacturer;

C) the symbol of the rope;

g) the length of rope in metres;

d) the gross mass of rope in kg;

e) the date of manufacture of rope.

(Changed edition, Rev. N 2).

4.4. Transport marking under GOST 14192*.
_______________
* Valid GOST 14192−96. — Note the manufacturer’s database.

(Changed edition, Rev. N 2).

4.5. Storage of the ropes — the terms 5 GOST 15150.

When storing the rope wound on the drum, the axis of the drum should be parallel to the floor with the drum.

During long-term storage ropes should be periodically, at least every 6 months, inspect the outer layer and oil rope lubrication.

(Changed edition, Rev. N 2).

4.6. Ropes transporterowych open all kinds of transport in accordance with cargo carriage regulations applicable to transport of this species. Stowage and securing of cargoes transported by rail, must comply with the rules of loading and fastening of cargoes, approved by the Ministry of Railways of the USSR.

(Changed edition, Rev. N 2, 5).