GOST 4134-75

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  ГОСТ 4134-75

GOST 4134−75 Profiles of copper alloy for collectors of electrical machines. Technical specifications (Changes No. 1−4)

GOST 4134−75

Group В53

STATE STANDARD OF THE USSR

PROFILES OF COPPER ALLOY FOR COLLECTORS OF ELECTRICAL MACHINES

Specifications

Copper alloys sections for collectors of electrical machines.
Specifications

GST 18 448

Date of introduction 1977−01−01

INFORMATION DATA

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

DEVELOPERS

Y. F. Chuvakin, doctor. tech. Sciences; S. A. Zuckerman, PhD. tech. Sciences (head of subject)

2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from 13.08.75 N 2138

3. REPLACE GOST 4134−48

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. By the decree of Gosstandart of the USSR from 07.06.91 N 830 removed the limitation of the validity period

6. REVISED (June 1998) with Amendments No. 1, 2, 3, 4, approved in August 1980, April 1986, June 1987, June 1991 (IUS 10−80, 7−86, 10−87, 9−91)


This standard applies to cold-formed profiles made of alloys copper-based, used for the manufacture of the collector plates of electrical machines.

(Changed edition, Rev. N 4).

1. ASSORTMENT

1.1. The cross sectional shape of the profile is specified on the devil.1.

Damn.1

1.2. (Deleted, Rev. N 2).

1.3. The dimensions of the profiles and limit deviations thereon shall be as specified in table.1.

Table 1

mm

Note. At a height of more than 105 mm thin side profile must be at least 3 mm.


(Changed edition, Rev. N 2).

1.4. The nominal size must be a multiple of 0.01 mm. profile Height must be a multiple of 0.5 mm.

Note. Profile height must comply with R20.


At the request of the consumer profiles produce other sizes according to the height profile.

(Changed edition, Rev. N 1, 2).

1.5. The angle of the profile must conform to the angle of the template.

1.6. At the request of the customer can be rounding of the corners formed by the base and the sides of the profile.

1.7. Profiles are made of random length from 1 to 4 m.

Note. By agreement with the consumer allowed profiles with a length of less than 1 m, but no shorter than 0.5 m, not more than 10% of the batch weight.

1.8. At the request of the consumer profiles with a maximum height of 40 mm are manufactured in coils.

Profile length should be at least 4 m.

The legend shall appear on the diagram:

when the following abbreviations:

Instead of the missing data, put an «X».

Profile normal manufacturing precision size 1,10x7,0 mm angle cross section 10°54″ bronze brand Brkd1:

Profile TRNT 1,10x7,0 to 10°54″ ND Brkd1 according to GOST 4134−75.

1.6−1.8. (Changed edition, Rev. N 2).

2. TECHNICAL REQUIREMENTS

2.1. Profiles are produced in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

The profiles are made of bronze marks Brkd1 and Brmg0,3 according to GOST 18175.

2.2. The surface profiles must be clean, free of cracks, sunsets and impurities.

On the surface allowed individual imperfections like slivers, scratches, sinks, nicks, dents, burrs, depth not exceeding the limit deviations on size profiles. Allowed color of a tint on the surface of the profiles.

On the basis of profile height up to 20 mm allowed longitudinal protrusions of 0.2 mm and the risks to a depth of not more than 0.2 mm. On the bases of the profiles with a height of over 20 mm are permitted longitudinal lugs up to 1% of the height profile and the risks to a depth of 1% of the height profile, but not more than 0.4 mm.

The permissible width of the ledge or risk should not exceed their height.

2.3. Camber profile with a height less than 50 mm should not exceed 4 mm per 1 m length, profile height up to 50 mm — 3 mm per 1 m length.

The camber profiles are manufactured in coils, not standardized.

2.1−2.3. (Changed edition, Rev. N 2).

2.4. Profiles are supplied in the solid state.

2.5. Hardness profiles according to the Brinell hardness shall conform to the requirements of table.3.

Table 3*

_______________

* Table 2 (Deleted, Rev. N 2).

2.6. The profiles must be cut at right angle. Delivery of the profiles with the cut ends.

3. ACCEPTANCE RULES

3.1. Profiles accepted by the parties. The party should consist of profiles of single precision manufacturing, one size, one brand of alloy and decorated with a single document about quality that contains:

trademark or the name and trademark of manufacturer;

the symbol of the profiles;

the results of the tests (at the request of the consumer);

batch number;

the weight of the batch.

The weight of the batch is not limited.

3.2. Check the outer surface must be subjected to each profile of the party. To control the size and camber are subjected to 10% of bays or packs of the party.

3.3. To test the hardness of select two bays or two packs from each ton, but not less than three bays or of the packs from the party.

3.3. To check the chemical composition of select two bays or two packs from the party.

Allowed the manufacturer checks the chemical composition carried out on the sample taken from the molten metal.

3.4. If unsatisfactory test results of at least one of the indicators it is carried out re-testing at twice the sample taken from the same batch.

The results of repeated tests apply to the entire party.

Allowed the manufacturer to carry out routine test profiles.

Sec. 3. (Changed edition, Rev. N 2).

4. TEST METHODS

4.1. Visual inspection of the profiles is carried out without the use of magnifying devices.

(Changed edition, Rev. N 2).

4.1 a. To check the shape and size of the cross section carried out three measurements in the beginning, middle and end of the profile.

(Added, Rev. N 2).

4.2. Check the shape and size of the cross section profile is as follows: pattern light touch is coming to the profile with wide base profile should be between the upper and lower control surfaces of the template.

4.3. Check the shape of the profile (size, base , angle ) is the ultimate pattern, the form of which is shown in hell.2.

Damn.2

4.4. The template is made by the customer. The template should be constructed of solid sheet steel without welding and riveting.

Work surface width shall be not less than 4 and not more than 5 mm. the thickness of the template must conform to the requirements of table.4.

Table 4

mm

Templates size are made with an accuracy of minus 5 microns; the roughness parameter of the working surfaces should be microns. The hardness of the templates should be HRC 56…63. The template needs to be specified nominal dimensions , and the angle , the number of the profile drawing, the pattern number, precision of manufacture and name of manufacturer.

Limit deviations of the dimensions of the side surfaces of the profile measured by the probe. The thickness of the feeler gauge to check the profile height of less than 30 mm should be 0.03 mm, a height of more than 30 mm — 0.05 mm.

The side profile when checking should fit snugly to the sides of the template. A tight fit is considered is the relative position of the template and the profile, wherein in the gap between them is not part of the probe. For a profile height of more than 30 mm, the measurement gap should be not less than 15 mm from the base (Fig.3).

Damn.3

The profile entered in the template must be tight, with no clearance to fit the pattern in the thin part of the strip at a distance of not less than 5 mm and not less than one point.

Note. For profiles with a thin part less than 3 mm can be manufactured prefabricated limiting patterns.


(Changed edition, Rev. N 1, 2, 3).

4.5. Size checking is performed using limiting straps, or measuring tools that provide required accuracy.

4.6. Camber profile ruler check length of 1 m according to GOST 8026 and template or probe.

4.7. To test the hardness of each selected pack is taken one profile. From each Bay and the profile selected based on one sample.

Hardness on the Brinell hardness is according to GOST 9012. Hardness test strips on the sides at a distance of approximately 1/3from the base . The load should be applied perpendicular to the side profile. The hardness of the test sample in at least three places. The hardness test is made by a ball of 5 mm diameter at a load of 250 kgf and shutter speed of 30 sec.

The average thickness of the profiles less than 3 mm determined by the formula , hardness tests carried out with 2.5 mm ball at a load of 62.5 kgf and shutter speed of 30 sec.

(Changed edition, Rev. N 2).

4.7. Chemical composition of alloys determined according to GOST 15027.1 — 15027.14 GOST, GOST 20068.1 — GOST 20068.3 or other methods of equal accuracy specified in the standard.

If a dispute arises in the evaluation of the results of the analysis of the chemical composition is determined by GOST 15027.1 — 15027.14 GOST, GOST 20068.1 — GOST 20068.3.

Sampling for analyzing the chemical composition — GOST 24321*.
______________
* This reference to «GOST 24321 Plows tractor. Terms and definitions» is probably incorrect. Should read «GOST 24231−80 non-ferrous metals and alloys. General requirements to selection and preparation of samples for chemical analysis». Note the «CODE».

(Added, Rev. N 2).

5. PACKING, MARKING, TRANSPORTATION AND STORAGE

5.1. Profiles are tied in bundles or Bay weight not exceeding 80 kg each. Bundle or Bay must be tied up in two turns with a wire diameter not less than 1.2 mm according to GOST 3282или other material according to normative-technical documentation in at least three places evenly along the length of the pile or Bay, excluding the reciprocal movement of the profiles in the pack.

The ends of the wire connected by twisting at least five turns.

Bundles or Packed in bays 1−2 layers of synthetic or non-woven materials, ensure quality safety profiles, and tie on top of the packing material with wire diameters by GOST 3282 in at least two places.

The package needs to be formed into transport packets weighing up to 1250 kg. overall dimensions of packages — according to GOST 24597.

Funds bonds — according to GOST 21650.

Packaging bundles, bays carried on pallets according to GOST 9557 or without pallets with the use of bars not less than 50 mm with tying wire with diameter at least 2 mm in two turns according to GOST 3282 or tape not less than 0,3х30 mm according to GOST 3560или using the bunching of slings made of wire according to GOST 3282 diameter not less than 5 mm with the twist of not less than three turns. The ends of the wires are connected by twisting at least five turns of tape in the castle.

Packaging of goods sent to the far North and remote areas shall meet the requirements of GOST 15846 group «bars».

(Changed edition, Rev. N 2, 4).

5.2. Transport marking of packages — according to GOST 14192 with the application of manipulation sign «sling here» and additional labels batch numbers in a place free from traffic markings.

5.3. To each bundle the Bay or attach metal or plywood label according to GOST 14192 with the indication:

the trademark or name of the manufacturer and trademark;

legend grade alloy;

size profile;

batch number;

designation of this standard;

the stigma of technical control.

5.2, 5.3. (Changed edition, Rev. N 2).

5.4. (Deleted, Rev. N 2).

5.5. For labeling profiles allowed to use the following legend in bronze:

5.6. Transport profiles is carried out by all kinds of transport in covered vehicles in accordance with the rules of cargo transportation applicable to transportation of this species.

(Changed edition, Rev. N 2).

5.7. Profiles are stored in closed premises in conditions excluding mechanical damage and contact with moisture and active chemical substances.

The text of the document is verified by:
the official publication of the
M.: IPK Publishing house of standards, 1998