Magnesium alloy sound pot
A magnesium alloy and magnesium alloy plate technology, applied in the field of loudspeakers, can solve the problems of porous and loose products, low plasticity of magnesium alloy, and not too thin wall thickness, and achieve the effect of light weight, good rigidity and uniform structure
Inactive Publication Date: 2010-12-08
SHANGHAI INST OF TECH
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Problems solved by technology
However, the plasticity of magnesium alloy is very low, and it is currently obtained by casting. The disadvantage is that the yield is low, the product has more holes and looseness, and the strength is low, and because the casting process requires that the wall thickness should not be too thin
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[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0013] Such as Figure 1 to Figure 3 Shown, the magnesium alloy sound basin of the present invention, the material of its basin body adopts density to be 2.78g / mm 3 Magnesium alloy sheet with a thickness of 0.05~0.4mm, the material composition is Al: 2.5~3.5; Zn: 0.60~1.4; Mn: 0.20~1.0; Si: ≤0.08; Fe: ≤0.003; Ca: ≤0.04; Cu : ≤0.01; Ni: ≤0.001, Mg: balance. The basin body is formed by integral stamping of magnesium alloy.
[0014] The shape of the basin body is a trumpet shape with upper and lower circular openings 1 and 2, the thickness of the horn wall 3 is uniform, and the shape of the horn wall 3 can be linear ( figure 1 ), of course it can also be arc-shaped ( figure 2 ). The upper and lower openings 1 and 2 of the trumpet-shaped basin are all circular in shape, and the two circles are concentric but different in size. The upper and lower cir...
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Abstract
The invention relates to a magnesium alloy sound pot which comprises a pot body formed by stamping magnesium alloy in an integral way; the material of a magnesium alloy plate of the pot body has the density of 2.78g / cm<3>, the thickness of 0.05-0.4mm and the components of 2.5-3.5 of Al, 0.60-1.4 of Zn, 0.20-1.0 of Mn, less than or equal to 0.08 of Si, less than or equal to 0.003 of Fe, less than or equal to 0.04 of Ca, less than or equal to 0.01 of Cu, less than or equal to 0.001 of Ni and balance Mg. The pot body is in a horn shape with an upper and a lower round openings, and the horn wall is even in thickness and takes on a liner shape or an arc shape. The magnesium alloy sound pot is thin, light in weight, high in strength and good in rigidity, has impact resistance, even structure, good heat dissipation, good anti-damping shock absorption performance, strong electromagnetic shielding capability and low processing cost, provides better sound quality and wider audio frequency range for the user, and meets the requirements of a high-power loudspeaker.
Description
technical field [0001] The invention relates to a loudspeaker, in particular to a sound cone of the loudspeaker. Background technique [0002] In today's world, with the improvement of people's living standards, people put forward higher and higher requirements for high-fidelity and high-power speakers. The sound cone is the main part of the speaker, and its quality will directly affect the performance of the speaker. [0003] The characteristics of the sound cone material and the production process affect the sound quality, so there are higher requirements for the material's Young's modulus, density, damping coefficient, internal loss, strength, etc. The harder and lighter the material, the wider the frequency band; the internal loss The larger it is, the smoother the response and the better the sound quality. High-end speaker cones require low density, light weight, high strength, good toughness, and uniform structure. [0004] At present, the most common sound cone mate...
Claims
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IPC IPC(8): H04R7/12
Inventor徐春梁宝钱
OwnerSHANGHAI INST OF TECH