This standard is applicable to the determination of the ability of metal wires with a diameter or thickness of 0.1mm to 10mm to withstand plastic deformation during the winding test. GB/T 2976-2004 Metallic wire winding test method GB/T2976-2004 Standard download decompression password: www.bzxz.net

CB/T 2976—200//ISO 78C2;1983 This standard is equivalent to the standard 150822:1983 Test methods for materials (English version). For use, this standard has made the following modifications: \"International Standard" is replaced by "This Standard"! h! The original effective point is used as a decimal. The foreword of the international standard is deleted. This standard replaces the standard. Compared with B/T27-199, the following changes are made: the description of the test principle is added, and the content of the test machine is also revised: the test method is added, the test method and the rate and rate are specified; the technical identification "usually" is changed to "interpretation": This standard is issued by the China Association for Standardization and the above standards should be drafted by the National Bureau of Standards and the Quality and Health Inspection Center of Guizhou Wire Rope Co., Ltd. The originator: Aihua, Juefa, Hongying, this standard was issued in 1982 and was counted as the first time in 1988. 1 Scope
GR/T2976——200/ISO 7802:1983 Test methods for winding of metallic materials
This standard is applicable to the wire with a diameter of 0.1m~1cmm or a diameter of 4.4. The test process is to withstand the plasticity of the wire.
2 PrinciplebZxz.net
The test is to test the wire with a diameter of 0.1m~1cmm in accordance with the relevant environmental regulations. The test may include special requirements, such as the winding method, the winding method and the winding method. 3 Test equipment
The test equipment is to use a core rod to burn the wire, and the wire used for the test must be of sufficient hardness and can also be used as a core rod. 4 Test procedures
4.1 The test should be carried out in a room temperature of 10%~.35℃. If there are special requirements, the test temperature shall be 315.4.2 The sample shall be wound on the spiral at a constant speed not exceeding one circle per second without any other parts rotating. To prevent the upper variable from increasing and affecting the test results, 4.3 For the purpose of fire protection, an increase of 1% of the corresponding tensile strength value may be added at the end to avoid fire.
4.4 If the cost of the network or before the contract, the solution and the burning of the continuous Chen should be as far as possible to prevent the test cold station effect, the new medical test Shen end should be kept at least one person around the cabinet, 4.5 The judgment of the test station should be in accordance with the relevant provisions of the certificate, such as light and according to the requirements, the surface of the sample can be tested without artificial sales, and the sample is judged to be qualified if the number of damages is too large. For the self-adaptive or thick, the whole is less than (rm\) The residual material should be collected for about 10 pieces of the piece identification two through the compensation market:
5 Test report
The test report includes the following contents:
2) This standard number:
) Sample mark (such as village quality, quality, etc.): the test group of the straight or original skin!
Small Zhizhen line;
Heart "Test piece (Figure sensitive system length); f? Experimental fruit.
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