A rivetable deformable low-copper alloy material and its application
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A copper alloy and riveting technology, applied in contact parts and other directions, can solve the problems of less than 25%, high position, shortage of copper resources, etc., and achieve the effect of cost saving and good deformation performance
Active Publication Date: 2016-08-24
NINGBO POWERWAY ALLOY MATERIAL
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Although the demand for copper is strong, there is a serious shortage of copper resources in my country, the domestic resource supply rate is less than 25%, and copper prices continue to remain high
As a Zn-Al-based deformed zinc alloy, the tensile strength of the alloy is above 360MPa, and the elongation is only ≤10%, which cannot meet the requirements for riveting processing of zinc alloys for power plugs.
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Embodiment 1
[0033] The SEM picture of embodiment 1 low-copper alloy microstructure is as figure 1 as shown, figure 1 The energy spectrum analysis results indicated by the middle arrow are as follows figure 2 As shown, it can be clearly seen that the alloy of the present invention has an aluminum-rich Al-Zn-Cu ternary eutectic structure, and the ternary eutectic structure is a network.
[0034] According to the IEC60884-1 standard, the free drop and temperature rise test is carried out. The IEC60884-1 standard stipulates that the finished plug is energized with AC for 1 hour, and the temperature rise cannot exceed 45K. 100-1000 times of drum drop test, the plug must not be broken or bent during the test. Free fall and temperature rise tests were performed on the examples and comparative alloys. The sample in the free drop test does not have a flexible cable, and the weight does not exceed 100g. After falling 1000 times, observe whether there are cracks on the surface of the sample to j...
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Abstract
Disclosed is a low-copper alloy material consisting of Al, Cu, M, Zn and unavoidable impurities, M being at least one element of Ni, V, Ti, Zr, La, Ce, Pr, Nd, Mo, Si, Be, Cr, Mn, Co and Mg, and the impurities comprising at least one element of Fe, Pb, Sn, Sb and Cd. The weight percentage composition of the low-copper alloy material is: the Al content x = 0.1 - 6.0 wt%, the Cu content y = 0.1 - 4.0 wt%, the M content z = 0.001 - 1.0 wt%, the total amount of the impurities is less than or equal to 0.1 wt%, and the remainder is Zn. The sum of the Al and Cu contents satisfies 0.5 wt% ≤ x+y ≤ 9.0 wt%, and the ratio of the Al and Cu contents satisfies 1 ≤ x / y ≤ 4. The alloy may be applied to components such as power supply plugs of household appliances, said components requiring riveting and stamping processing.
Description
technical field [0001] The invention relates to the technical field of low-copper alloy materials and their applications, in particular to a rivetable deformable low-copper alloy material and its application. The alloy material can be applied to power plugs of household appliances and other parts that need to be riveted and stamped. . Background technique [0002] Copper and copper alloys are one of the most widely used non-ferrous metals, accounting for more than half of the amount used in the electrical and electronic industry. Although the demand for copper is strong, there is a serious shortage of copper resources in my country, the supply rate of domestic resources is less than 25%, and copper prices continue to remain high. Moreover, the copper content of copper alloys is relatively high, generally above 55%, and the price of copper raw materials usually accounts for 85-90% of the selling price of copper alloys. Therefore, copper prices have a serious impact on the ca...
Claims
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