GOST 18899-73
GOST 18899−73 steel wire Rope. Ropes closed bearing. Technical specifications (With Changes 1−6 N)
GOST 18899−73
The Group Of 75
STATE STANDARD OF THE USSR
Steel wire rope
ROPES CLOSED BEARING
Specifications
Steel wire ropes. Locked conveying wire ropes.
Specifications
OKP 12 5100, 12 5200
Date of introduction 1975−01−01
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of ferrous metallurgy of the USSR
DEVELOPERS
K. I. Tulenkov, I. A. Lobanov, N. Galkin, V. I. Tsaryuk, J. D. Mamaev, P. I. Khromov, F. S. Revzina
2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from
3. INTRODUCED FOR THE FIRST TIME
4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
The designation of the reference document referenced |
Item number |
GOST 166−89 |
3.2 |
| GOST 427−75 |
3.9 |
| GOST 1545−80 |
3.6 |
| GOST 1579−93 |
3.7 |
| GOST 3282−74 |
4.1 |
| GOST 6507−90 | 3.3 |
| GOST 7372−79 |
1.2, 1.15, 1.18, 3.8 |
| GOST 8828−89 |
4.1 |
| GOST 10446−80 |
3.5 |
| GOST 11127−78 |
4.1 |
| GOST 14192−96 |
4.5 |
| GOST 15150−69 |
4.6, 4.7 |
| GOST 15527−70 |
1.10 |
| GOST 15846−79 |
4.1 |
| GOST 17308−88 |
4.1 |
| GOST 20458−89 |
1.11 |
| THAT 14−4-1495−88 |
1.2, 1.15, 1.18 |
(Changed edition, Rev. N 6).
5. Limitation of actions taken by Protocol No. 4−93 of the Interstate Council for standardization, Metrology and certification (ICS 4−94)
6. REPRINT (February 1998) Changes N 1, 2, 3, 4, 5, approved in July 1977, April 1982, March 1985, October 1987, December 1989 (IUS 7−77, 7−82, 6−85, 1−88, 3−90)
The Change No. 6 adopted by the Interstate Council for standardization, Metrology and certification (minutes dated
Change 6 N entered the law office of «Code» in the text IUS N 3, 2002
This standard applies to steel closed bearing ropes for General purposes.
Mandatory requirements to quality ropes, ensuring the safety of life and health set out in PP.1.13, 1.15, 1.16, 1.18, 1.20, 3.2, 3.5, 3.6, 3.7, 3.8.
(Changed edition, Rev. N 6).
1A. CLASSIFICATION
1a.1. The ropes are classified by the features stated in the claims.1a.1.1−1a.1.4.
(Added, Rev. N 3).
1a.1.1. By way of lay:
— prosrochena — N;
— unwinding — R.
(Added, Rev. N 3; amended, Rev. N 5).
1a.1.2. Direction of lay:
right;
left — L.
The direction of lay of the rope is determined by the direction of lay of the wires of the outer layer.
(Added, Rev. N 3).
1a.1.3. Mechanical properties of the wire:
To brand;
I — mark I.
For lifting and transportation of people should use the ropes only brand B.
1a.1.4. According to the type of surface finish of the wires:
— without coating;
of galvanized wire:
for medium to aggressive working conditions,
«hard «"" W,
«particularly hard «"" coolant.
1A.1.3, 1a.1.4. (Added, Rev. N 3; amended, Rev. N 5).
1. TECHNICAL REQUIREMENTS
1.1. (Deleted, Rev. N 3).
1.2. The ropes shall be manufactured from uncoated wire and galvanized round churchyard 7372 and the 14−4-1495, and shaped according to normative-technical documentation (NTD).
The ropes must be manufactured for technological regulations approved in the prescribed manner.
1.3. The ropes are made with the right direction of lay of the wires of the outer layer. The direction of lay of wires in the upper two adjacent layers should alternate.
At the customer’s request ropes can be manufactured in left-hand direction of lay.
1.2, 1.3. (Changed edition, Rev. N 5).
1.4. The step length of lay of the rope shall not exceed 10 times the rope diameter. The step length of lay of the core touch point should be no more than 11 times the diameter of the corresponding are weaving the crown layer, the step length of lay of the core linear touch — no more than 9 times the core diameter.
At the request of the consumer the step of lay of rope can be increased up to 15 times the diameter.
(Changed edition, Rev. N 3, 5).
1.5. 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.
The surface of the rope must not have speakers or zabavchik wires.
1.7. The surface wires of the rope must be free of cracks and rust on the wire should not be cut sections exceeding the limit deviation for diameter or profile wire.
(Changed edition, Rev. N 3, 5).
1.8. The diameter of the Central wire rope core point touch should be thicker core 0.2−0.4 mm.
1.9. With the lay wire rope should have uniform tension. All wire rope should fit snugly to the wires of the underlying layers. Samobytnye of wire in the layer should adhere to each other, forming a connection lock. Between the shaped wires allowed the clearance does not violate the lock rope.
1.10. Wire rope must be connected by brazing or butt welding. As the solder must be applied brass brand Л060−1 according to GOST 15527.
The joints should not be brittle and thickened. Thickening should not exceed the limit deviation for diameter or profile wire.
Distance between joints of the individual wires in each layer shall not be less than five steps lay.
For ropes of the brand In the number of connections of external wires should not be more than two at the 500 m length of rope.
(Changed edition, Rev. N 1, 3, 5).
1.11. Ropes must be lubricated at all layers.
As lubricants to be applied Torsiol-55 according to GOST 20458, Torsiol-35, BOZ-1 in the NTD. By agreement with the consumer allowed the use of other lubricant types.
At the customer’s request ropes can be manufactured in a consistent form.
(Changed edition, Rev. N 2−5).
1.12. At the ends of the rope must be imposed at least three clamps, preventing them from relaxing, and the ends of the wire at the end of the cable shall be connected by welding.
1.13. The rope should be of uniform diameter throughout its length. The diameter of the rope must meet specified in the relevant standard assortment.
Maximum deviation of the rope diameter from nominal diameter should not be more than:
1.14. Rope length is set in the order. At the request of the consumer made a rope of a certain length, while its weight should not exceed 30 m
Maximum deviations along the length of the rope should not be more than:
+4% when the length of the rope of up to 500 m;
+2% «"" over 500 m.
1.12, 1.13. (Changed edition, Rev. N 5).
1.15. The ropes are made from round wire marking groups 1370−1960 N/mm(140−200 kg/mm
) according to GOST 7372 and the 14−4-1495, wedge wire marking groups 1180−1770 N/mm
(120−180 kgf/mm
), zetobraznoj wire marking groups 980−1570 N/mm
(100−160 kgf/mm
) for NTD. For round and shaped wires allowed fewer kinks and twists in relation to the requirements of GOST 7372 and the 14−4-1495.
1.16. The run of temporary tear resistance round wire each group according to size and each profile shaped wire (wedge and zetobraznoj), taken from the rope, shall not exceed the ropes of the brand In 16%, grade I — 20% of the marking of groups of wires.
The value of permissible takeoff temporary tear resistance are rounded to the nearest whole number upward.
1.15, 1.16. (Changed edition, Rev. N 5).
1.17. (Deleted, Rev. N 5).
1.18. Surface density of zinc and the adhesion of it to the steel core round wires should correspond to GOST 7372 and the 14−4-1495, and shaped wires — NTD.
(Changed edition, Rev. N 5).
1.19. Allowed for tested wires taken from the rope, reduction of the surface density of zinc on the 5% provided that the average surface density of zinc on the test wire meets the requirements of claim 1.18.
(Changed edition, Rev. N 3, 5).
1.20. The total breaking strength of all wires in the rope shall not be less than the estimated value specified in the table appropriate assortment standard steel rope (attachment a), for a given product group temporary tear resistance.
(Changed edition, Rev. N 6).
1.21. The diameters of the round wires in the ropes are calculated and can be specified to within ±0,1 mm. is Equal to the diameters of the wires of one layer must be specified at the same value. When you change wire diameters the diameters of the ropes must not exceed the limit deviation specified in claim 1.13.
Change the number of shaped wire layers per unit, while increasing the step lay a rope up to 15 times the diameter of the rope by two units, must be maintained the requirements of the PP.1.9 and 1.13.
(Changed edition, Rev. N 5).
2. ACCEPTANCE RULES
2.1. Ropes take parties. The party should be composed of rope of the same size, in a packaging unit and to be issued a document about quality that contains:
is the trademark or name and trademark of manufacturer;
— the name of the organization, which includes the manufacturer;
— number of rope on the numbering system of the manufacturer;
is the nominal rope diameter in millimeters;
— the direction of lay of the rope;
— method of lay of the rope;
— length of rope in metres;
gross of rope in kilograms;
mark of the rope;
— the calculated breaking strength of all wires in the rope in kilonewtons;
— labeling group of the rope;
— the date of manufacture of the rope;
— the designation of the standard assortment;
the image of the conformity mark for mandatory certification.
(Changed edition, Rev. N 3, 6).
2.2. Tests subjected to each rope for compliance with the requirements of PP.1a.1, 1.4−1.13 and 1.15, 1.16, 1.18−1.20.
(Changed edition, Rev. N 5).
2.3. 2.4. (Deleted, Rev. N 3).
2.5. The results of the tensile tests, torsion, bend and control the size of the wires is considered satisfactory if the total cross-sectional area of wires that do not meet the requirements of this standard, is 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 of test results the requirements of this standard allowed a re-test 100% of the wire ropes of the brand and 50% wire rope brand I.
The total area of cross sections of wire ropes stamps I do not meet the requirements of this standard shall be not more than 4% of the nominal cross-sectional area of the rope.
The results of repeated tests are final.
(Changed edition, Rev. N 5).
2.6. Rope assess at a set low Marche’s wire.
3. TEST METHODS
3.1. Visual examination of the rope (PP.1A.1.2, 1.6, 1.7, 1.9−1.12) produce visually.
3.1. To check the mechanical properties, the size of the wire rope, the surface density of zinc, and clutch it with steel core from each rope selected samples with a length of not less than:
1.0 m — ropes made of wire without coating;
1.5 m «""" galvanized.
From the samples of wire ropes is taken in the amount indicated in the table. 3. The number of wires, obtained by the calculation are rounded to the nearest whole number upward.
Table 3*
__________________
* Table. 1 and 2. (Deleted, Rev. N 5).
| Type of test | The number of test wires | |
| the ropes of the brand In | the ropes of the brand I | |
Check for tension with the determination of breaking strength and size of wires |
100% round and shaped wires |
25% round and shaped wires, but not less than three |
| Check for inflection |
100% round wires | 25% round wires of each diameter, but not less than three |
| Check for twisting |
25% round wires of each diameter, but not less than three |
10% round wires of each diameter, but not less than three |
| Checking of the surface density of zinc |
10% of each type and size of wire ropes of all types, but not less than three | |
| Check adhesion of zinc to the steel core |
10% of each type and size of wires but not less than one | |
(Added, Rev. N 3; amended, Rev. N 5).
3.2. Diameter rope (p.1.13) 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.
3.3. The diameters of the wires (section 1.8) check the micrometer according to GOST 6507 with a scale division of 0.01 mm in cross-section in two mutually perpendicular planes.
3.2, 3.3. (Changed edition, Rev. N 5).
3.4. The rope meets the requirements of neraskruchennosti, if upon release of the ends of the specimen from the clamps and welding samobytnye wire out of the castle.
Definition of neraskruchennosti the top layer of shaped wires is carried out at a distance of at least half of the step lay from designated segments.
3.5. Test wires tensile (p.1.16) is carried out according to GOST 10446.
At 100% strength test, the total breaking strength of the rope (p.1.20) determine 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 average values of discontinuous efforts the tested wires of different sizes on the number in the rope.
The correspondence of the calculated temporary tear resistance of the wires specified in the order (p.1.20), 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 relevant standard assortment.
3.6. Testing wires on a twisting (p.1.15) — according to GOST 1545.
3.7. Test wires at break (p.1.15) — according to GOST 1579.
3.8. Quality zinc coating wire (PP.1.18 and 1.19) checking for GOST 7372.
3.9. Step lay of the rope (PP.1.4 and 1.5) 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.
(Changed edition, Rev. N 5).
3.10. The lack of brittleness in the joints of the wires is guaranteed by the technology of making rope.
(Added, Rev. N 5).
PACKING, MARKING, TRANSPORTATION AND STORAGE
4.1. The ropes are wound on wooden drums according to GOST 11127, and returnable drums, using them in the prescribed manner or on a metal drum on the NTD.
At the customer’s request ropes wound on the drum, on the upper layer of coils wrapped with paper according to GOST 8828, which is tied with wire according to GOST 3282, or another wire at the NTD, or twine according to GOST 17308 and cased with boards.
Packaging ropes dispatched to the far North and remote areas, produce according to GOST 15846.
(Changed the wording. Izm. N 1, 3, 4, 5).
4.2. The cylinder diameter of the drum shall not be less than 45 times the rope diameter.
The side of the drum must protrude above 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 attached to the drum on the inside of the cheek. The end of the rope tied waste ropes and fastened to the cheek.
Note. In the manufacture of ropes of large lengths, if the drum with the rope is outside the train size, it is allowed to transport the ropes wound on the drum, the diameter of the cylinder which may be less than 45-fold, but not less than 35 times the rope diameter, with mandatory rewind the rope after the transport drum, the standard size consumers.
(Changed edition, Rev. N 3).
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) gross rope in kilograms;
e) the date of manufacture of the rope;
g) in case of obligatory certification on the label or drum with the rope is applied to the image of the mark of conformity.
(Changed edition, Rev. N 1, 3, 6).
4.4. Allowed wound on a single reel several segments of rope the same size. In this case, the label on the drum indicate the number and length of segments in m in a sequence corresponding to the sequence of winding segments of the rope from the drum.
4.5. Transport marking — according to GOST 14192.
4.6. Ropes transporterowych according to storage condition 5 or 8 GOST 15150 by all kinds of transport in accordance with cargo carriage regulations applicable to transport of this type, and conditions of loading and fastening of cargoes, approved by the Ministry of Railways. Transportation ropes by rail produces carload or small shipments.
During transportation of the rope wound on the drum, the axis of the latter must be parallel to the platform that has the rope.
4.7. Storage of the ropes — the terms 5 GOST 15150. When storing the rope wound on the drum, the axis of the latter must be parallel to the surface on which a rope.
4.5−4.7. (Changed edition, Rev. N 3).
4.8. During long-term storage ropes should be periodically, at least every 6 months, inspect the outer layer and lubricate the cable with grease.
(Changed edition, Rev. N 5).
4.9. (Deleted, Rev. N 3).
5. MANUFACTURER’S WARRANTY
5.1. The manufacturer guarantees the conformity of ropes the requirements of this standard under the conditions of transportation, storage and operation.
5.2. Warranty period of storage of ropes for 12 months from date of manufacture.
5.3. Warranty life of ropes used for cargo suspended cable cars, — not less than 700 kg/mm. Introduced from
Section 5. (Changed edition, Rev. N 5).
Annex a (mandatory). List of standards assortment of ropes closed bearing
APPENDIX A
(required)
GOST 3090−73 steel wire Rope. The rope closed bearing with one layer zetoobraznoj wire and core-type TC. Assortment
GOST 7675−73 steel wire Rope. The rope closed bearing with one layer of wedge-shaped and one layer of zetoobraznoj wire and core-type TC. Assortment
GOST 7676−73 steel wire Rope. The rope closed bearing with two layers of wedge-shaped and one layer of zetoobraznoj wire and core-type TC. Assortment
GOST 18901−73 steel wire Rope. The rope closed bearing with two layers of zetoobraznoj wire and core-type TC. Assortment
Appendix (added, Rev. N 6).
The text of the document is verified by:
the official publication of the
«Ropes of steel. Ropes closed bearing.
Specifications and assortment"
SB. Standards.
M.: IPK Publishing house of standards, 1998
Legal Bureau «Code"
the text of the document amended N 6,
MGS adopted (minutes dated
