GOST 20707-2015

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  ГОСТ 20707-2015

GOST 20707−2015 Strips, radiator copper and brass. Specifications

GOST 20707−2015

INTERSTATE STANDARD

TAPE RADIATOR COPPER AND BRASS

Specifications

Copper and brass ribbons for radiators. Specifications

ISS 77.150.30

Date of introduction 2016−04−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, application, renewal and cancellation"

Data on standard

1 DEVELOPED by the Technical Committee for standardization TC 106 «Tsvetmetprokat», Scientific-research, project and design Institute for alloys and processing of nonferrous metals «joint-stock company «Institute tsvetmetobrabotka» (JSC «Institute tsvetmetobrabotka»)

2 as AMENDED by the Federal Agency for technical regulation and Metrology (Rosstandart)

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol dated may 29, 2015 N 77-P)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology dated 30 September 2015 N 1418-St inter-state standard GOST 20707−2015 introduced as a national standard of the Russian Federation from April 1, 2016.

5 REPLACE GOST 20707−80


Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — inmonthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

1 Scope

This standard applies to radiator copper and brass strips intended for the manufacture of cooling tubes and radiator fins.

2 Normative references

This standard uses the regulatory references to the following international standards:

GOST 166−89 (ISO 3599−76) Calipers. Specifications

GOST 427−75 Rulers measuring metal. Specifications

GOST 859−2014 Copper. Brand

GOST 1173−2006 Foil, strip, sheet and plate copper. Specifications

GOST 1652.1−77 (ISO 1554−76) Alloys copper-zinc. Methods for determination of copper

GOST 1652.2−77 (ISO 4749−84) Alloys copper-zinc. Methods for determination of lead

GOST 1652.3−77 (ISO 1812−76, ISO 4748−84) Alloys copper-zinc. Methods of iron determination

GOST 1652.4−77 Alloys copper-zinc. Methods for determination of manganese

GOST 1652.5−77 (ISO 4751−84) Alloys copper-zinc. Methods for determination of tin

GOST 1652.6−77 Alloys copper-zinc. Methods for determination of antimony

GOST 1652.7−77 Alloys copper-zinc. Methods for determination of bismuth

GOST 1652.8−77 Alloys copper-zinc. Methods for determination of arsenic

GOST 1652.9−77 (ISO 7266−84) Alloys copper-zinc. Methods of determining sulphur

GOST 1652.10−77 Alloys copper-zinc. Methods for determination of aluminium

GOST 1652.11−77 (ISO 4742−84) Alloys copper-zinc. Methods for determination of Nickel

GOST 1652.12−77 Alloys copper-zinc. Methods for determination of silicon

GOST 1652.13−77 Alloys copper-zinc. Methods for determination of phosphorus

GOST 2208−2007 Foil, tape, strip, sheet and plate brass. Specifications

GOST 2991−85 wooden disposable Boxes for loads up to 500 kg. General specifications

The Wire GOST 3282−74 General purpose low carbon steel. Specifications

GOST 3333−80 Lubricant graphite. Specifications

GOST 3560−73 package steel Strip. Specifications

GOST 6507−90 Micrometers. Specifications

GOST 7502−98 metallic measuring tape. Specifications

GOST 7933−89 Cardboard for consumer packaging. General specifications

GOST 9078−84 flat Pallets. General specifications

GOST 9557−87 flat wooden Pallet size 800x1200 mm. specifications

GOST 9716.1−79 Alloy copper and zinc. Method of spectral analysis on a metal standard samples with photographic registration of spectrum

GOST 9716.2−79 Alloy copper and zinc. Method of spectral analysis on a metal standard samples with photoelectric registration of spectrum

GOST 9716.3−79 Alloy copper and zinc. Method of spectral analysis on the oxide samples with photographic registration of spectrum

GOST 9717.2−82 Copper. Method of spectral analysis on a metal standard samples with photographic registration of spectrum

GOST 9717.3−82 Copper. Method of spectral analysis of oxide standard specimens

GOST 10198−91 wooden Boxes for goods of mass over 200 up to 20000 kg. General specifications

GOST 10510−80 (ISO 8490−86) Metals. Test method for the extrusion of sheets and strips for Eriksen

GOST 13938.11−2014 Copper. Methods for determination of arsenic

GOST 13938.13−93 Copper. Methods for determination of oxygen

GOST 14192−96 Marking of cargo

GOST 15102−75 the universal metal closed Container of nominal gross mass 5,0 t Technical specifications

GOST 15527−2004 Alloys copper-zinc (brass) pressure treated. Brand

GOST 15846−2002 Products that are sent to the far North regions and equated areas. Packing, marking, transportation and storage

GOST 18242−72 Statistical acceptance inspection by alternative feature. Plans control*
________________
* On the territory of the Russian Federation GOST R ISO 2859−1-2007"Statistical methods. Procedure sampling on alternative grounds. Part 1. Sampling plans consistent parties on the basis of an acceptable level of quality."


GOST 18321−73 Statistical quality control. Methods of random selection of piece products

GOST 20435−75 the universal metal closed Container of nominal gross mass 3,0 t specifications

GOST 21140−88 Tara. System sizes

GOST 21650−76 means of fastening of package cargoes in transport packages. General requirements

GOST 24231−80 non-ferrous metals and alloys. General requirements to selection and preparation of samples for chemical analysis

GOST 25086−2011 non-ferrous metals and their alloys. General requirements for methods of analysis

GOST 26663−85 transport Packs. Formation with the use of packaging. General technical requirements

GOST 26877−2008 metal Products. Methods of measuring form deviations of

GOST 31382−2009 Copper. Methods of analysis

GOST 32597−2013 Copper and copper alloys. Types of defects of billets and semi-finished

ST SEV 543−77 Number. Record rules and rounding

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Terms and definitions

3.1 this standard applies the terminology according to GOST 32597.

4 Assortment

4.1 the thickness of the tapes and tolerances for thickness shall be as specified in table 1.

4.2 the Width of the strips and limit deviations on width shall be as specified in table 2.

4.3 Length of strips should be not less than 100 m. it is allowed to produce strips with a length of at least 40 m in an amount of not more than 10% of the batch weight.

Allowed manufacturing a tape length less than 60 m, while in the party should not be more than 15% of the tape length of at least 40 m.

4.4 the legend of strips put according to the scheme:

Use the following abbreviations:

Examples of symbols ribbons:

Cold-rolled steel strip, rectangular, normal accuracy in thickness and width, semi-solid, thickness 0.15 mm, width 38 mm, random length, brass brand L90 designed for tube radiators:

Tape DPNP 0,15х38 ND TR L90 GOST 20707−2015

The same manufacturing high precision in thickness and normal accuracy in width, solid, thickness 0.10 mm, width 95 mm, random length, made of brass brands L63, designed for plates of radiators:

Tape CPRIT 0,10x95 ND PL L63 GOST 20707−2015

5 Technical requirements

5.1 Tape manufactured in accordance with the requirements of this standard, made of copper grades M1, M2 and M3 with the chemical composition according to GOST 859 and brass brands and L90 L63 with the chemical composition according to GOST 15527.

5.2 cold-rolled Strip made of copper in soft and hard condition, brass in soft, semi-solid and solid States.

Brass tape thickness of 0.05−0.10 mm, inclusive, and copper tape thickness of 0.05 mm are made only in the solid state.

5.3 the surface of the tape must be clean, i.e. free from contamination, hindering its inspection.

Allowed minor imprints, nakoly, scratch output tape at reference sweep for tolerances for thickness.

Allowed color of a tint, local redness, minor darkening of the surface of ribbons. Traces the technological lubricant on the tape rejection symptom are not.

On the tapes used for the manufacture of tubes of radiators, corrosion, Browning, and the punctures are not allowed.

Permitted surface quality control samples are agreed between manufacturer and user.

5.4 Tape should be trimmed and should not have bending edges and burrs that prevent use of tapes from the consumer to the destination. Wrinkled and ragged edge is not allowed.

Allowed minor waviness of the edge, not impeding the normal formation of the lock tubes.

5.5 Camber strips shall be not more than 3 mm per 1 m length. Camber strips of high accuracy for the cooling tubes of the radiator must not exceed 2 mm per 1 m length.

5.6 the Depth of extrusion of the tape when the punch radius is 10 mm, shall be as defined in table 3.

5.7 Tape brass brand L90 intended for cooling tubes radiators are manufactured in semi-solid state extrusion depth of 3.5−5.5 mm when the punch radius 10 mm.

5.8 At the request of the consumer semi-firm strips of brass L90 brand, is designed for radiator tubes are manufactured by extruding depth of 3.0−5.0 mm if the radius of the punch 7.0 mm.

Rules the depths of extruding strips with different radius of the punch is determined by agreement between manufacturer and consumer.

6 acceptance Rules

6.1 Tape take parties. The party should consist of strips of one brand of copper or brass, the same size, one state, one precision manufacturing and to be issued a document about quality that contains:

is the trademark or name and trademark of manufacturer;

— the name of the country of manufacture;

— legal address of the manufacturer and/or seller;

— the symbol of the tape;

— test results (as required);

— the batch number;

the weight of the party;

— the number of seats when packing in boxes.

The weight of the batch is not limited.

Allowed to issue one document about the quality on some tapes the same brand of copper or brass, the same size, one state, one precision manufacturing, shipped to the same consumer, indicating the batch number.

6.2 For the control of the chemical composition selected two rolls from the party. On the manufacturer is allowed to inspect the chemical composition of the samples taken from the molten metal.

6.3 To control the size, appearance, and camber belts using single-stage normal sampling plan for the alternative characteristic in accordance with GOST 18242 with the acceptance level of defects is 4%.

The selection of rolls of tapes in the sample is carried out «blindly» (by the greatest objectivity) according to GOST 18321.

If the quantity does not exceed three rolls of tape, checked every roll of ribbon.

6.4 To control the size, appearance, and camber from the party taken rolls of tapes in accordance with table 4.


Table 4

6.5 To measure the thickness of the tape from each selected roll, the number of measurement points is determined depending on the length of the tape in the coil in accordance with table 5.


Table 5

The length of the tape in a roll to select the number of measurement points in the coil is determined by the formula (1) given in 7.3.

6.6 in the control of the thickness of the controlled roll of tape considered valid if the number of measurements that meet the requirements of table 1, less than the acceptance number specified in table 4.

Under the control of the width, length, appearance, and camber party is considered valid if the number of rolls of tapes that do not meet the requirements of 4.3, 5.3, 5.5, table 2, less than the acceptance number specified in table 4.

6.7 Upon receipt of unsatisfactory results in at least one controlled rolls of tape is carried out continuous monitoring of the entire party.

Allowed the manufacturer to control the thickness, width, length and appearance of the tape is carried out in the production process.

6.8 testing the depth of extruding from every full or partial 1,000 kg taken three rolls.

6.9 If unsatisfactory test results of at least one of the performance indicators specified in 5.2 and 5.8, it is carried out a re-test of the doubled sample taken from the same batch. The results of repeated testing are spreading to the entire party.

7 Methods of inspection and testing

7.1 For the analysis of the chemical composition of each selected roll of tape is cut one sample. Sampling for chemical composition analysis is carried out according to GOST 24231.

Chemical composition analysis is carried out:

— copper tape — GOST 31382, 13938.11 GOST, GOST 13938.13, 9717.2 GOST, GOST 9717.3;

— brass tape — GOST 1652.1 — 1652.13 GOST and GOST 9716.1 — GOST 9716.3.

General requirements for methods of analysis should correspond to GOST 25086.

7.2 appearance of the tapes checked by inspection without the use of magnifying devices.

7.3 the Thickness of the tape is measured with a micrometer according to GOST 6507 type ML MCC or with the measuring surface of the sphere-plane.

The measurement of the thickness of the tape is carried out at a distance of not less than 10 mm from edges and not less than 100 mm from the end of the tape roll. For tapes with a width of 20 mm or less, the measurement is performed in the middle.

The thickness of the strip measured at each selected coil at points located uniformly at random along the length of the roll.

The length of the roll L, m, calculated by the formula

, (1)

where D and d are respectively the outer and inner diameters of the coil, measured with a ruler according to GOST 427, mm.

and — tape thickness, mm.

7.4 the Width and length tape measure measuring metal ruler according to GOST 427, caliper according to GOST 166 or metal measuring tape according to GOST 7502.

The measurement of the width of the tape is carried out in a single place at a minimum distance of 100 mm from the end of the tape roll.

7.5 Camber of the tape measure according to GOST 26877 in one place on any site.

7.6 Test of the depth of the extrusion is carried out according to GOST 10510 on a single sample from each selected test coil on the instrument type PTL and MTL-10G-1 with graphite grease USS GOST 3333 or other lubricant manufacturer in agreement with the consumer.

The test is subjected to a tape of a width of 35 mm or more.

If the tape width is less than the permissible width of the specimen, the cutting samples for testing is carried out before cutting of the coil to the specified width.

Test the depth of the extrusion may be performed on the machines in manual mode.

7.7 it is allowed to apply other methods of control and measurement tools, providing the necessary accuracy.

If there is disagreement in the definition of indicators monitoring is carried out by methods specified in this standard.

7.8 the results of the measurements are rounded according to the rounding rules established in ST SEV 543.

8 Packing, marking, transportation and storage

8.1 Tape must be rolled into rolls. The coil should consist of one piece of belt. Rolls of tape should be tight-wound precluding movement of the coils relative to each other and the crushing roll. The diameter of the inner hole of the coil should be from 40 to 100 mm.

At the request of the consumer inside the roll with soft brass strips thickness of 0.12−0.20 mm and soft copper ribbons all thicknesses of the insert tube or the reverse sleeve.

In coordination with the consumer inside of the roll with a solid and semi-solid ribbons of a thickness 0,08−0,20 mm insert the reverse bushing with a diameter of 30−50 mm.

8.2 Each roll of tape shall be wrapped with metal band size not less than 0,2x15 mm in the present standard, GOST 2208, GOST 1173 or GOST 3560 or wire with diameter not less than 0.5 mm according to GOST 3282. Binding: wire — stranding at least three turns of tape to the castle.

Pets instead of strapping the outer turn of the roll to secure the adhesive tape.

8.3 each roll of tape shall be attached a label showing:

— trademark or name and trademark of manufacturer;

— the name of the country of manufacturer;

— the legend of the tape;

— batch number;

— stamp of technical control.

8.4 the Rolls of tape are Packed in wooden boxes of types I, II, III according to GOST and GOST 2991 10198или universal containers according to GOST 15102 or GOST 20435, or in special containers with a lining between the rows of cardboard according to GOST 7933. Dimensions of boxes — GOST 21140 or technical documentation.

Allowed the transport of strips in solid and semi-solid state in the container without packing in boxes when there is no overload in the way. Rolls of tape should be laid so that they do not move inside the container during transportation.

8.5 Consolidation packages in overpacks carried out in accordance with the requirements of GOST 26663. Means bonding in the transport packets according to GOST 21650.

Packaging is carried out on pallets according to GOST 9557 or GOST 9078 or without pallets with the use of bars with a height of not less than 50 mm with strapping in the longitudinal and transverse directions with wire of diameter not less than 2 mm according to GOST 3282 or tape of size not less than 0,3x20 mm according to GOST 3560. Binding: wire — stranding at least five turns of tape to the castle.

Weight of cargo must not exceed 2000 kg. Weight of cargo space in covered wagons should not exceed 1250 kg.

8.6 In each drawer must be attached to the packing slip, containing:

is the trademark or name and trademark of manufacturer;

— the name of the country of manufacture;

— the symbol of tapes;

— the batch number;

the net weight.

8.7 permitted to use other types of packaging materials not inferior in strength of the above, and other types and methods of packing, providing safety of product quality.

8.8 Transport marking under GOST 14192 with the application of manipulation sign «Protect from moisture».

8.9 Packing tapes, to be sent to the far North regions and equated areas according to GOST 15846 in the group «Metals and metal products."

8.10 Tape transporterowych all types of transport in covered vehicles in accordance with transportation rules and conditions of loading and fastening of goods, operating on transport of the species.

8.11 During the transportation and storage of tape should be protected from mechanical damage, moisture and active chemical substances.

8.12 Upon receipt from the consumer of the tape should be kept in stock in the manufacturer’s packaging for at least two days to equalize the temperature of the strips to the room temperature.

At the expiration of the tape needs to be unpacked.

It is forbidden in the winter time to open the boxes outdoors and make the rolls in a warm room.

8.13 Under specified storage conditions consumer properties of the tapes are not changed.

Annex a (informative). Thickness and theoretical weight of 1 square meter of used tapes

Appendix A
(reference)

Thickness and theoretical weight of 1 mof used tapes

Table A. 1

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: STANDARTINFORM, 2016