GOST 18327-73
GOST 18327−73 zinc Strips for General use. Specifications (with Amendments No. 1, 2, 3)
GOST 18327−73
Group B54
INTERSTATE STANDARD
ZINC STRIPS GENERAL PURPOSE
Specifications
Zinc strips for general use.
Specifications
GST 18 3130
Date of introduction 1974−01−01
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR
DEVELOPERS
Sawakin Y. F., doctor of engineering. Sciences; M. B. Taubkin, PhD. tech. Sciences; Z. I. Potapenko
2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from
Change No. 3 adopted by the Interstate Council for standardization, Metrology and certification (Protocol № 7 from 26.04.95)
Was the Technical Secretariat of MGS N 1621
The adoption voted:
| The name of the state |
The name of the national authority for standardization |
| The Republic Of Belarus |
Gosstandart Of Belarus |
| Russian Federation |
Gosstandart Of Russia |
| Ukraine |
Gosstandart Of Ukraine |
3. INTRODUCED FOR THE FIRST TIME
4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
| The designation of the reference document referenced |
Item number |
| GOST 166−89 |
4.3 |
| GOST 427−75 |
4.2 |
| GOST 2991−85 |
5.2 |
| GOST 3282−74 |
5.2 |
| GOST 3560−73 |
5.2 |
| GOST 3640−94 |
2.1 |
| GOST 6507−90 |
4.2 |
| GOST 8273−75 |
5.1; 5.2 |
| GOST 9557−87 |
5.2 |
| GOST 9569−79 |
5.2 |
| GOST 14192−96 |
5.4 |
| GOST 17065−94 |
5.2 |
| GOST 18242−72 |
3.3 |
| GOST 18321−73 |
3.3 |
| GOST 18477−79 |
5.2 |
| GOST 19251.0−79-GOST 19251.6−79 |
4.4 |
| GOST 21140−88 |
5.2 |
| GOST 24231−80 |
4.4 |
| GOST 26663−85 |
5.2 |
| GOST 26877−91 |
4.5 |
5. Limitation of actions taken by Protocol No. 3−93 Interstate Council for standardization, Metrology and certification (ICS 5−6-93)
6. REVISED (June 1999) with Amendments No. 1, 2, 3, approved in February 1983 March 1988 January 1996 (IUS 6−83, 6−88, 3−96)
This standard applies to zinc tape for General purpose used in electrical, automotive and other industries.
(Changed edition, Rev. N 3).
1. ASSORTMENT
1.1. The thickness of the tapes and tolerances for it shall be as specified in table.1.
Table 1
mm
| Thickness |
Limit deviation on thickness |
Theoretical weight of 1 m |
| 0,12 |
0,86 | |
| 0,15 |
Of 1.08 | |
| 0,18 |
-0,02 |
1,29 |
| 0,20 |
1,44 | |
| 0,22 |
-0,03 |
1,58 |
| 0,25 |
1,80 | |
| 0,30 |
2,15 | |
| 0,35 |
-0,04 |
2,51 |
| 0,40 |
2,87 | |
| 0,45 |
3,23 | |
| 0,50 |
3,59 | |
| 0,55 |
3,95 | |
| 0,60 |
4,31 | |
| 0,65 |
-0,06 |
The 4.67 |
| 0,70 |
5,03 | |
| 0,75 |
The 5.39 | |
| 0,80 |
5,74 | |
| 0,90 |
6,46 | |
| Of 1.00 |
7,18 | |
| 1,20 |
-0,08 |
8,61 |
| 1,50 |
10,77 | |
| 1,80 |
Of 12.92 | |
| Of 2.00 |
-0,10 |
Of 14.36 |
Note. When calculating the mass of 1 madopted the nominal dimensions of the tapes and the density of the zinc, equal to 7.18 kg/DM
.
1.2. The width of the tapes and tolerances for it shall be as specified in table.2.
Table 2
mm
| Width |
Limit deviation width with a thickness | ||
| from 0.12 to 0.50 |
St. 0.50 to 1.00 |
St. of 1.00 to 2.00 | |
| From 20 to 100 |
-0,2 (+0,2) |
Of -0.3 (+0.3 mm) |
-0,5 (+0,5) |
| SV. 100 «150 |
Of -0.3 (+0.3 mm) |
-0,4 (+0,4) |
-0,5 (+0,5) |
| «150» 280 | -0,4 (+0,4) |
-0,5 (+0,5) |
-0,6 (+0,6) |
Note. Limit deviations, given in parentheses, to apply in legal relations.
1.1, 1.2. (Changed edition, Rev. N 1).
1.3. The tape shall be manufactured with a length, m:
at least 10 for tapes with thickness up to 1.0 mm;
at least 5 for strips with thickness of 1.0 mm. St
1.4. (Deleted, Rev. N 1).
The legend strips are filled according to the scheme:
when the following abbreviations:
manufacturing method: cold-drawn — D;
sectional shape: rectangular — OL;
length: random — ND.
Instead of the missing data is «X».
Example of designation of strip, cold-formed rectangular section, thickness 0.50 mm, width 150 mm, random length, zinc brand of C0:
Tape DPRK 0,50 X150 ND C0 GOST 18327−73
(Changed edition, Rev. N 1).
2. TECHNICAL REQUIREMENTS
2.1. Tape manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner. Tape is produced from zinc grades C0, C1 and C2 with the chemical composition according to GOST 3640.
2.2. The surface of the strips should be flat and smooth, without delamination, blisters, laps, cracks, scratches, spots of corrosion origin.
On the surface of the tape allowed minor imprints from the rolls, the spots that are fixed in the control sweep, as well as traces of elimination of surface defects by Stripping, if their depth is in the range of half of limit deviations for thickness.
2.3. The tape should be trimmed evenly and must not have significant burrs and bent edges.
2.1−2.3. (Changed edition, Rev. N 1).
2.4. The number of pieces in a roll shall not be more than two.
2.5. Camber strips shall not exceed 3 mm per 1 m length.
2.6. On the tapes allowed the welds.
2.5, 2.6. (Changed edition, Rev. N 1).
3. ACCEPTANCE RULES
3.1. Tape take parties. The party should consist of strips of the same size, the same brand of zinc shall be furnished in one document about quality that contains:
trademark or a trademark and the name of the manufacturer;
the brand of metal;
the size of the tape;
batch number;
the weight of the party;
the designation of this standard.
The weight of the batch should not exceed 10 T.
(Changed edition, Rev. N 1).
3.2. (Deleted, Rev. N 1).
3.3. 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 each coil.
3.3. The number selected to control the thickness of the coils of strips determined in accordance with table.3.
Table 3
PCs
| The number of rolls in the party |
The number of controlled rolls |
| 4−25 |
3 |
| 26−90 |
13 |
| 91−150 |
20 |
| 151−280 |
32 |
| 281−500 |
50 |
The length of the tape in a roll to select the number of measurement points is determined by the formula given in claim 4.2.
The number of monitored points in each selected coil is determined in accordance with table.4.
Table 4
| Tape length in roll, m |
The number of controlled points. |
Rejection number |
| From 5 to 12 incl. |
3 |
1 |
| SV. 12 «45 « |
13 |
2 |
| «45» 75 « |
20 |
3 |
| «75» 140 « |
32 |
4 |
| «140» 250 « |
50 |
6 |
Controlled roll of tape is considered valid if the number of measurement results that do not meet the requirements of table.1, less than the acceptance number given in table.4.
If unsatisfactory results of measuring at least one of the monitored coils batch is rejected.
Allowed the manufacturer to monitor each roll of the party.
Allowed the manufacturer to carry out thickness control in the production process.
3.3, 3.3 a. (Changed edition, Rev. N3).
3.3 b. To control the width, appearance, and camber of the party selected rolls of tape in accordance with the table.5.
Table 5
| The number of rolls of ribbons in the party. |
The number of controlled rolls. |
Rejection number |
| 4−25 |
3 |
1 |
| 26−90 |
13 |
2 |
| 91−150 |
20 |
3 |
| 151−280 |
32 |
4 |
| 281−500 |
50 |
6 |
The party is considered usable if the number of coils not satisfying the requirements of table.2, PP.2.2, 2.3 and 2.5, less than the acceptance number given in table.5.
Allowed the manufacturer to monitor each roll of the party.
Allowed the manufacturer to control the width, appearance, and conduct of camber in the production process.
(Added, Rev. N 3).
3.4. To determine the chemical composition of the feeds should be selected 2% of the coils from the party, but not less than three rolls.
Determination of the chemical composition of the feeds may be performed on the sample taken from the molten metal.
If unsatisfactory results of chemical composition analysis, a second analysis on the doubled sample taken from the same batch. Results re-analysis apply to the entire party.
(Changed edition, Rev. N 1, 3).
3.5. (Deleted, Rev. N 3).
4. TEST METHODS
4.1. The appearance of the tape is checked visually without the use of magnifying devices.
(Changed edition, Rev. N 1, 3).
4.2. The thickness of the tape is measured with a micrometer according to GOST 6507.
The thickness of the strip measured at each of the selected coils in points positioned uniformly randomly along the length of the roll.
The measurement is performed at a minimum distance of 100 mm from the end of the tape and at least 10 mm from the edge.
The tape length () in meters is calculated by the formula
where and
— respectively the outer and inner diameters of the coil, measured with a ruler according to GOST 427, mm.
— tape thickness, mm.
The results of measuring the thickness of the tape, not the related table.1 should not differ from that permitted more than half of the tolerance field.
Allowed to the manufacturer in the production process to control the thickness of the tape other measurement tools ensuring required accuracy.
(Changed edition, Rev. N 2, 3).
4.3. The width of the tape measure caliper according to GOST 166.
You can define the width of the other measurement tools ensuring required accuracy.
The measurement of the width of the tape is carried out in at least three places on both ends and in the middle.
(Changed edition, Rev. N 2).
4.4. Chemical analysis should be carried out according to GOST 19251.0 — GOST 19251.6.
To determine the chemical composition of each selected roll of tape is taken one sample. Selection and preparation of samples for the determination of chemical composition is carried out in the churchyard 24231.
(Changed edition, Rev. N 1).
4.5. Measurement of camber is carried out according to GOST 26877.
Allowed to measure camber by another method that ensures the required accuracy of the measurement in one place on any area of the roll.
(Changed edition, Rev. N 2, 3).
5. PACKING, MARKING, TRANSPORTATION AND STORAGE
5.1. Tape must be rolled into rolls. Each roll should be wrapped in paper according to GOST 8273.
(Changed edition, Rev. N 1).
5.2. Rolls of tape shall be Packed in wooden boxes of types I, II, III according to GOST 2991, lined inside of paraffined paper GOST 9569. Dimensions of boxes — GOST 21140 or other regulatory-technical documentation.
Allowed the shipment of rolls of tape, wrapped in paper according to GOST 8273, synthetic or non-woven materials according to normative-technical documentation, in containers according to GOST 18477без packing in boxes. The rolls of tape must be laid and fastened in such a way as to exclude their movement within the container during transportation.
Allowed the shipment of rolls of tape, wrapped in paper according to GOST 8273, in cardboard drums according to GOST 17065.
Weight of cargo must not exceed 80 kg.
Consolidation packages in overpacks — according to GOST 26663. Packaging is carried out on pallets according to GOST 9557 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 not less than 0,3х30 mm according to GOST 3560. Bond tips: twist the wire at least 5 turns, a feed — lock.
(Changed edition, Rev. N 1, 2, 3).
5.3. Each roll shall be attached a label showing:
a) the trademark or name and trademark of manufacturer;
b) product names and brand of zinc;
in) size strips;
g) the batch number;
d) designation of this standard;
e) mark of the technical control of the manufacturer.
(Changed edition, Rev. N 1).
5.4. Transport marking of packages — according to GOST 14192 with the application of manipulation sign «Protect from moisture».
(Changed edition, Rev. N 1, 3).
5.5. Tape transporterowych by all kinds of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this kind, small or carload shipments.
(Changed edition, Rev. N 1).
5.6. When storing tapes should be protected from mechanical damage, moisture and active chemical substances. Under specified storage conditions consumer properties of tapes in storage are not changed.
(Changed edition, Rev. N 1, 3).
The text of the document is verified by:
the official publication of the
M.: IPK Publishing house of standards, 1999
