GOST 19424-97
GOST 19424−97 zinc Alloys for casting into ingots. Specifications
GOST 19424−97
Group W51
INTERSTATE STANDARD
ZINC ALLOYS FOR CASTING INGOTS
Specifications
Cast zinc alloys in pigs. Specifications
ISS 77.120.30
GST 2130 17
Date of introduction 2001−07−01
Preface
1 DEVELOPED by the Interstate technical Committee for standardization MTK 107, Donetsk state Institute of non-ferrous metals (Danism)
SUBMITTED to the State Committee of Ukraine for standardization, Metrology and certification
2 ADOPTED by the Interstate Council for standardization, Metrology and certification (minutes No. 12 dated November 21, 1997)
The adoption voted:
| The name of the state | The name of the national authority for standardization |
| The Republic Of Azerbaijan |
Azgosstandart |
| The Republic Of Armenia |
Armastajad |
| The Republic Of Belarus |
Gosstandart Of The Republic Of Belarus |
| The Republic Of Kazakhstan |
Gosstandart Of The Republic Of Kazakhstan |
| The Kyrgyz Republic |
Kyrgyzstandard |
| Russian Federation |
Gosstandart Of Russia |
| The Republic Of Tajikistan |
Tajikistandart |
| Turkmenistan |
Glavgosekspertiza «Turkmenstandartlary" |
| Ukraine |
Gosstandart Of Ukraine |
3 this standard corresponds to international standard ISO 301−81* «Ingots, zinc alloys for casting» in terms of a mass fraction of the main components of zinc alloys Ca4o and CAM4−1o
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* Access to international and foreign documents can be obtained by clicking on the link to the site shop.cntd.ru. — Note the manufacturer’s database.
4 Resolution of the State Committee of the Russian Federation for standardization and Metrology dated December 19, 2000 N 384 St interstate standard GOST 19424−97 introduced directly as state standard of the Russian Federation from July 1, 2001
5 REPLACE GOST 19424−74
6 REISSUE. June 2011
1 Scope
This standard applies to cast zinc alloys in ingots, intended for the production of castings.
The purpose of casting of zinc alloys is given in Appendix A.
2 Normative references
The present standard features references to the following standards:
GOST 12.1.005−88 standards System of labor safety. General hygiene requirements for working zone air
GOST 12.1.007−76 System of standards of occupational safety. Harmful substances. Classification and General safety requirements
GOST 12.2.009−99 Metalworking. General safety requirements
GOST 12.3.009−76 System of standards of occupational safety. The work of loading and unloading. General safety requirements
GOST 12.4.013−85* the System of occupational safety standards. Glasses protective. General specifications
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* On the territory of the Russian Federation GOST
GOST 12.4.021−75 System safety standards. System ventilation. General requirements
GOST 2590−2006 rolled steel hot rolled round. Assortment
The Wire GOST 3282−74 General purpose low carbon steel. Specifications
GOST 3560−73 package steel Strip. Specifications
GOST 14192−96 Marking of cargo
GOST 21399−75 Packages transport of pigs, cathodes and ingots of non-ferrous metals. General requirements
GOST 21650−76 means of fastening of package cargoes in transport packages. General requirements
GOST 23328−95 zinc Alloys. Methods of spectral analysis
GOST 24231−80 non-ferrous metals and alloys. General requirements to selection and preparation of samples for chemical analysis
GOST 24597−81 the packaged goods. Basic parameters and dimensions
GOST 25284.0−95 Alloy zinc. General requirements for methods of analysis
GOST 25284.1−95 Alloy zinc. Methods for determination of aluminium
GOST 25284.2−95 Alloy zinc. Methods for determination of copper
GOST 25284.3−95 Alloy zinc. Methods for determination of magnesium
GOST 25284.4−95 Alloy zinc. Methods for determination of lead
GOST 25284.5−95 Alloy zinc. Methods for determination of cadmium
GOST 25284.6−95 Alloy zinc. Methods of iron determination
GOST 25284.7−95 Alloy zinc. Methods for determination of tin
GOST 25284.8−95 Alloy zinc. Methods for determination of silicon
GOST 26653−90 Preparation of General cargoes for transportation. General requirements
3 Definitions
In this standard use the following terms with respective definitions:
3.1 slag inclusionDefect in the form of a cavity, filled with slag.
3.2 contaminants: a Defect in the form of foreign metallic or non-metallic inclusions having a boundary surface with the base metal.
3.3 captivity: a Defect in the form of metal or oxide layer on the casting surface, resulting in insufficient calm pouring of the metal.
3.4 shrinkage: Open or closed cavity with rough, sometimes oxidized surface, formed due to shrinkage during solidification of the metal.
3.5 rihlat A defect in the form of clusters of small cavities.
4 Stamps and technical requirements
4.1 Casting zinc alloys ingots are made in accordance with the requirements of this standard according to the current technological instructions.
4.2 Chemical composition of zinc alloys shall meet the requirements of table 1.
Table 1 — Chemical composition of zinc alloys
Percentage
| Grade |
Mass fraction of main components | Mass fraction of impurities not more than | ||||||||
| aluminum |
copper | magnesium | zinc | copper | lead | iron | tin | cadmium | silicon | |
| ZnA14A | 3,5−4,3 |
- | 0,03−0,06 |
Basis | 0,03 | 0,003 | 0,03 | 0,001 | 0,002 | - |
| Ca4o | 3,9−4,3 |
- | 0,03−0,06 |
« | 0,03 | 0,004 | 0,05 | 0,001 | 0,002 | 0,015 |
| CA4 | 3,5−4,3 |
- | 0,03−0,06 |
« | 0,03 | 0,01 | 0,05 | 0,002 | 0,005 | 0,015 |
| ZnA14Cu1A |
3,5−4,3 |
0,7−1,2 |
0,03−0,06 | « | - | 0,003 | 0,03 | 0,001 | 0,002 | - |
| CAM4−1o | 3,9−4,3 |
0,7−1,2 |
0,03−0,06 | « | - | 0,004 | 0,05 | 0,001 | 0,002 | 0,015 |
| CAM4−1 | 3,5−4,3 |
0,7−1,2 |
0,03−0,06 | « | - | 0,01 | 0,05 | 0,002 | 0,005 | 0,015 |
| ZnA14Cu3A | 3,5−4,3 |
2,5−3,5 |
0,03−0,06 | « | - | 0,003 | 0,03 | 0,001 | 0,002 | - |
| ZnA14Cu3 | 3,5−4,3 |
2,5−3,5 |
0,03−0,06 | « | - | 0,005 | 0,05 | 0,001 | 0,002 | - |
| CAM4−1V | 3,5−4,3 |
0,6−1,2 | Not more than 0.1 |
« | - | 0,02 | 0,10 | 0,005 | 0,015 | 0,03 |
| Notes 1 Marking of grades: C — zinc; And aluminum; M is copper; about — high purity; And at the end of the designation marks — high purity; in — casting non-critical parts. 2 Mass fraction of major components and specific impurities may be changed by agreement between the consumer and the manufacturer. | ||||||||||
4.3 Ingots are made by intersecting. The mass of ingots shall not exceed 27 kg. the Shape and size of pigs is set by the manufacturer. Allowed to produce ingots that make up the bottom of the pack, without intersecting a mass of more than 27 kg.
By agreement with the customer is allowed to produce large ingots with a mass of (500±20) kg.
4.4 On the surface of the ingots should not be slag and foreign inclusions.
Allowed traces of removing oxides from the surface of the liquid metal, a small casting defects, richlite in the field of shrinkage and residues from burned lubricant used for coating molds. For large pigs are also fissures in the shrinkage.
Local allowed the inclusion of the prisoner in the square, not exceeding 10% of the surface pigs.
4.5 breaking pig needs to be uniform, dense and without slag and foreign inclusions. The homogeneity of large ingots is provided by the technological mode of cooling and solidification.
4.6 Additional technical requirements may be established in contractual agreement between the consumer and the manufacturer.
4.7 each pig must be applied:
— trademark or a trademark and the name of the manufacturer;
— number of melt;
— the brand or color coded alloy.
4.8 Colour marking shall be applied at the end of the pigs has a dye in the form of vertical strips of alloy grade:
Ca4o red;
CA4 — two red;
ZnA14A — red and the red cross;
CAM4−1 green;
CAM4−1o — black;
ZnA14Cu1A — green and green cross;
CAM4−1V — black and red;
ZnA14Cu3A — black and black cross;
ZnA14Cu3 — two black.
5 acceptance Rules
5.1 Alloys present to the acceptance of the parties. The party should consist of ingots of the alloy of one brand, of one or more heats and be accompanied by a document about quality that contains:
— trademark or a trademark and the name of the manufacturer;
— brand alloy;
— the weight of the batch;
— the batch number;
— number of melt (melting);
— the results of chemical analysis melting (melting);
— date of manufacture;
— the designation of this standard.
5.2 Batch should not contain more than 1% broken pigs. In the party intended for export, broken ingots are not allowed.
5.3 Checking the appearance of the surface is subjected to at least 10% of pigs from the party.
5.4 For quality control of the fracture taken at least three pigs from melting. Quality control of the fracture is carried out at the request of the consumer. Large pig on the break is not checked.
5.5 To verify the chemical composition of the alloy from each heat are selected to 0.1% of pigs, not less than three; for large ingots — 10% of the pigs, but at least two.
On the manufacturer is allowed to carry out the sampling liquid metal by the current normative documents (ND).
5.6 Upon receipt of unsatisfactory results of any tests at least one of the indicators it is carried out re-tests on twice the number of samples selected from the same heat. The results of repeated tests spread all over the heat.
5.7 is allowed to set the sample size on statistical methods. Under the arbitration control of the sample volume is adjusted in accordance with 5.3 to 5.6.
6 test Methods
6.1 Checking the quality of the surface and of the fracture is carried out visually. To check the quality of the jog selected pig break in place of the baffle.
6.2 Selection and preparation of samples for chemical analysis is carried out according to GOST 24231, for spectral analysis according GOST 23328.
6.3 Chemical composition of alloys determined according to GOST 25284.0 — GOST and GOST 25284.8 23328.
Allowed to determine the chemical composition by other methods of equal accuracy standardized.
If there is disagreement in the assessment of the chemical composition analysis is carried out according to GOST 25284.0 — GOST 25284.8.
6.4 Upon selection, sample preparation and chemical analysis should be guided by the safety requirements in accordance with GOST 12.1.005, GOST 12.1.007, GOST 12.2.009 and regulations approved in the established order to carry out these works using means of protection according to GOST 12.4.013 and GOST
7 Transportation and storage
7.1 Pig transporterowych in packages with the General requirements of GOST 21399, 26653 GOST, GOST 24597 and other applicable ND. The packages shall consist of ingots of the alloy of the same brand. The mass of the package shall not exceed 1000 kg. By agreement between the consumer and the manufacturer is allowed the weight of the package up to 1,500 kg.
Packages bonded steel tape according to GOST 3560 or steel wire of diameter not less than 10 mm according to GOST 3282, GOST 2590. Allowed to use means of fasteners according to GOST 21650, ensuring the integrity of the package during transportation and storage.
Transport package marking — GOST 14192, GOST 21399.
On the side of the package is attached a metal or wooden label with the material to ensure its safety, indicating a transport marking.
Large pig transporterowych in unbatched form of transport marking applied on the end part of the pig.
Loading the wagon with packages of large pigs or ingots, intended for dispatch to one address, transport marking applied not less than four cargo areas.
7.2 Packages transporterowych in covered vehicles of all types in accordance with the rules of goods carriage, valid for this mode of transport.
When transporting pigs should comply with the safety requirements according to GOST 21399и GOST
7.3 Pig kept in conditions that ensure preservation of their quality.
Annex a (informative). The appointment of the casting zinc alloys
APPENDIX A
(reference)
Table A. 1
| Grade | Application |
| ZnA14A, ZnA14Cu1A, ZnA14Cu3A, ZnA14Cu3 |
Parts for the automotive, electrical and engineering industries |
| Ca4o | For the injection molding of critical parts with stable size |
| CA4 | For injection molding non-critical parts with stable size |
| CAM4−1o | For molding critical components |
| CAM4−1 | For the injection molding of critical parts |
| CAM4−1V | For injection molding non-critical parts (Souvenirs and consumer goods) |
