Music string and instrument comprising said string
A technology of musical instruments and strings, applied in the field of musical strings, can solve problems such as poor sound quality, stretched carbon steel, and reduced brightness
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Embodiment 1
[0044] The test wires were made of precipitation hardened stainless steel with the following approximate composition (all by weight percent):
[0045]
[0046] The balance is Fe and impurities that are usually present.
[0047] The alloy complies with US standard AISI UNS S46910.
[0048] The wires were cold drawn to diameters of 0.254 mm, 0.33 mm and 0.43 mm, respectively. One wire of each diameter is now heat treated at a temperature of 475°C for 10 minutes, resulting in increased strength and further improved relaxation resistance of the material.
[0049] Yield strength and tensile strength were measured by tensile test according to SS-EN10002-1 and compared with 8 different carbon piano strings for comparison. The approximate composition and string diameters of the comparative examples are shown in Table 1. Yield (Rp 0.2 ) strength values and tensile (Rm) strength values are shown in Table 2, and in figure 1 shown in . It can be seen that the mechanical prope...
Embodiment 2
[0056] Slack resistance was tested by plucking the 0.254mm, 0.33mm and 0.43mm diameter strings approximately 200 times per minute with a plectrum. The ingredients are those of Example 1. Tests were run over 24 hours. The picking position of the plectrum was set at 18 cm from the force transducer connected to the computer. The total length of each string is 65 cm and rests on two plastic pieces at each end of the string. The distance between each endpoint and its corresponding force sensor is 5 cm. The diameters and their corresponding tones as well as the initial tension and engineering stress of the strings are given in Table 3.
[0057] table 3
[0058] diameter [mm]
Audio [Hz]
Tension [N]
Engineering stress [MPa]
0.254
330
71.8
1417
0.33
247
68.5
801
0.43
196
73.9
509
[0059] The slack test results of strings with diameters of 0.254mm, 0.33mm and 0.43mm are shown in figure ...
Embodiment 3
[0067] The magnetic resonance of the alloy in Example 1 was tested on a guitar, and compared with the magnetic resonance of the alloy in Comparative Example 7. The strings are plucked at a distance of 10cm from the bridge, and subjected to a force corresponding to the shear breaking point of the 0.10mm copper wire. A copper wire is looped vertically around the plucked string and then pulled until it reaches the breaking point. In this way, the same force is applied for each test. The point where the wire breaks must also be the point where it makes contact with the string being plucked, and if the wire breaks at any other point, the process is repeated. A set of five approved tests is performed on each string and the results are shown in the Figure 5 with Image 6 in the chart. The results show that the aging treatment process does not affect the magnetic properties of the material.
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Abstract
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