GOST 10703-73

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  ГОСТ 10703-73

GOST 10703−73 aluminium Sheets for the printing industry. Specifications (with Amendments No. 1, 2, 3, 4)

GOST 10703−73
Group В53

INTERSTATE STANDARD

ALUMINIUM SHEETS FOR PRINTING INDUSTRY

Specifications

Aluminium sheets for graphic arts industry.
Specifications

GST 18 1110

Date of introduction 1975−01−01

in part of sheets of thickness 0.5 mm 1976−01−01
in part sheets with thickness 0.35 mm 1977−01−01

The decision of the State standards Committee of the Council of Ministers of the USSR from 28.04.73 N 1100 date of introduction is established with 01.01.75

Limitation of actions taken by Protocol No. 4−93 of the Interstate Council for standardization, Metrology and certification (ICS 4−94)

REPLACE GOST 10703−63

REVISED (December 1998) with Amendments No. 1, 2, 3, 4, approved in September 1977, July 1979, June 1984, June 1989 (IUS 11−77, 9 to 79, 10−84, 10−89)


This standard applies to sheets made of aluminium grades A5, AD1 for the printing industry.

(Changed edition, Rev. N 4).

1. ASSORTMENT

1.1. The size of the sheets shall be as specified in table.1.

Table 1

mm

Note. By agreement of the parties is allowed to produce sheets of different width and length.

The theoretical mass of the leaves given in the Appendix.

(Changed edition, Rev. N 1, 4).

1.1.1. Maximum deviations along the width of the sheet plus 10 mm.

1.1.2. Limit deviations of length of sheet plus 25 mm.

1.1.1, 1.1.2. (Added, Rev. N 1).

1.2. The allowable thickness variation within one sheet must not exceed half of the tolerance field.

1.3. The size of the leaves and the grade of aluminium needs to be specified to the outfit you order.

Example of designation of sheet aluminum brand AD1, — worked, thickness 0.6 mm, width 1200 mm, length 1300 mm

Sheet AD1. N 0,6х1200х1300 GOST 10703−73

(Changed edition, Rev. N 3).

2. TECHNICAL REQUIREMENTS

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

Chemical composition of sheets made of aluminium grades A5, AD1 should correspond to GOST 4784−97.

(Changed edition, Rev. N 3, 4).

2.2. The sheets are manufactured in cold-worked condition.

2.3. The sheets of aluminum must have the following mechanical properties:

— temporary resistance from 135 to 195 MPa (14 to 20 kgf/mm);

the elongation is less than 4%.

(Changed edition, Rev. N 3).

2.4. Technological properties of sheets of the bend shall be as specified in table.2.

Table 2

2.5. The leaves must be cut at right angle.

2.6. Cut end Squareness, mm shouldn’t print the sheets for tolerances for width and length.

On the edges of cut sheets are not allowed burrs and delaminations.

2.7. The front surface of the sheets must be clean, flat, smooth, solid, without shells, dents, local undulations, fractures and plaque nitrate.

The roughness parameter should not exceed 0,32 µm according to GOST 2789−73.

(Changed edition, Rev. N 1, 2, 4).

2.8. On the front surface of the sheet is not allowed: cut, metallic and non-metallic inclusions, attrition in the form of point depressions, Nadira and prints from rolls or rollers straightening machines.

Carbon grease and some minor surface violations removed by etching the control of 5−6% NaOH at 50 °C for 1−3 min with further clarification in 30% nitric acid solution, a sign of acceptance are not.

2.9. The surface of the front side of the sheet at a distance of 10 mm from the edge in the direction along the rolling and 30 mm across the rolling, and the surface of the reverse side of the sheet shall conform to the requirements of GOST 21631−76 of high surface finish.

(Changed edition, Rev. N 3).

2.10. The deviation from flatness of the sheets should not be more than 16 mm on the entire surface (including the long side) and not more than 20 mm on the short sides.

(Changed edition, Rev. N 4).

3. ACCEPTANCE RULES

3.1. The leaves take parties. The party must consist of sheets of the same size and be accompanied by a document about quality that contains:

is the trademark or name and trademark of manufacturer;

— the symbol;

— the batch number;

— the number of sheets and the weight of the party;

— test results;

— date of manufacture;

— the designation of this standard.

(Changed edition, Rev. N 3).

3.1.1. To determine the chemical composition selected two leaves from the party. Allowed the manufacturer to determine the chemical composition of aluminum in each melting.

(Added, Rev. N 3).

3.2. Quality control the front surface, the deviations from flatness and dimensions are subjected to each sheet of the party.

The surface quality of reverse side of sheets by the manufacturer not controlled.

(Changed edition, Rev. N 3, 4).

3.3. To control the mechanical properties of the party selected 2% of leaves, but at least two leaves.

3.4. If unsatisfactory test results of at least one of the indicators it is carried out re-testing at twice the sample from the same batch. The results of repeated tests apply to the entire party.

Allowed the manufacturer upon receipt of unsatisfactory results of re-examination to carry out a continuous control for mechanical properties.

(Changed edition, Rev. N 3, 4).

4. TEST METHODS

4.1. Inspection of the surface of the front side of the sheet being produced without the use of magnifying devices.

4.2. The thickness of the sheets is measured at a minimum distance of 115 mm from the corner and at least 25 mm from the edge of the sheet with a micrometer according to GOST 6507−90.

The width and length of sheets measured by measuring tape according to GOST 7502−89*.
______________
* On the territory of the Russian Federation GOST 7502−98. — Note the CODE.

Deviation from flatness check one of the methods according to GOST 26877−91 straightedge according to GOST 8026−92 and the measuring ruler according to GOST 427−75.

4.3. The selection and preparation of samples for determining the chemical composition of the sheets is carried out according to GOST 24231−80. Determination of the chemical composition of aluminium is carried out according to GOST 25086−87, GOST 12697.1−77-GOST 12697.12−77 or spectral method by GOST 3221−85.

4.2, 4.3. (Changed edition, Rev. N 3, 4).

4.4. The tensile test is carried out according to GOST 1497−84. The sample for tensile testing are cut from a test sheet across the direction of rolling.

The shape and dimensions of samples should match the drawing.

Selection of samples for mechanical testing is carried out according to GOST 24047−80.

(Changed edition, Rev. N 3, 4).

4.5. The test bend is carried out according to GOST 13813−68.

4.6. Cosine of the cut measured in accordance with GOST 26877−91 measuring ruler according to GOST 3749−77 and goniometer according to GOST 5378−88.

4.7. Roughness control is carried out by profilometer-profilograph according to GOST 19300−86.

4.6, 4.7. (Added, Rev. N 4).

5. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

5.1. On the leaves, at one corner, at a distance of not more than 25 mm from edges along the length and width of the sheet on the front side shall be embossed or painted: the batch number and the stamp of technical control.

Allowed marking paint only the top sheet of the foot.

Marking sheets used quick-drying ink, stamps and which are established by normative-technical documentation.

5.2. Leaves of equal size are placed in stacks of no more than 0.5 m, shifting each sheet is a single layer of oiled paper or nepromokaemoy.

5.3. The foot should be wrapped in a package consisting of two layers of oiled paper and one layer of double-layer wrapping paper GOST 8828−89 or bitumen paper according to GOST 515−77.

5.4. For laying between the sheets and two layers of package is used:

— base paper for waxing machine brand RBP-35 according to GOST 16711−84;

— cushioning-packaging for rubber boots in NTD;

— the bituminous paper without a touch-up according to GOST 11836−76;

— telephone paper natural color according to GOST 3553−87;

— wrapping paper And stamps and In colors of natural fiber according to GOST 8273−75.

5.5. Wrapped stack of sheets (packets) are placed in lattice, solid or plywood boxes according to GOST 2991−91, GOST and GOST 10198−91 5959−80. The sizes of the drawers set depending on width, length and weight of leaves.

Packaging should exclude direct contact of the metal with the wood and the penetration of moisture to the metal, as well as the mutual movement of the sheets.

When packing is not allowed package damage.

Weight of cargo must not be more than 300 kg.

At the request of the customer can be increase in the mass package.

5.6. Transport marking of packages — according to GOST 14192−96 with the following additional inscriptions:

— the name of the material;

— grade aluminum;

— the condition of the material;

— the sizes of sheets;

— weight and number of sheets;

— the batch number.

5.7. The sheets are transported by all kinds of transport in covered vehicles in accordance with the rules of cargo transportation applicable to transportation of this species. The transportation of sheets by rail is small and carload shipments.

5.8. The leaves should be kept in storage areas protected from the action of chemicals and mechanical damage.

Sec. 5. (Changed edition, Rev. N 3).

APP (mandatory)

APP
Mandatory

Note. Theoretical mass () sheet, kg, is calculated by the formula

where and  — the largest and smallest sizes thickness, mm;

and is the largest and the smallest size width, mm;

and  — the largest and smallest dimensions length, mm;

 — the density of aluminum AD1 brands, A5 — 2.71 g/cm.

APP. (Added, Rev. N 4).