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Music string and instrument comprising said string

A string and music technology, applied in the field of music strings, can solve the problems of reducing string vibration, brightness reduction, and sound quality deterioration

Inactive Publication Date: 2008-12-17
SANDVIK INTELLECTUAL PROPERTY AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating usually reduces the vibration of the strings, resulting in less brightness and poorer sound quality
[0010] Another drawback of carbon steel when used as strings is its tendency to stretch when loaded

Method used

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  • Music string and instrument comprising said string
  • Music string and instrument comprising said string

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The test wire is made of precipitation hardening stainless steel with the following approximate composition (all in weight percent):

[0053] C 0.01%

[0054] Si 0.2%

[0055] Mn 0.3%

[0056] Cr 12%

[0057] Ni 9%

[0058] Mo 4%

[0059] Co 0.6%

[0060] Ti 0.9%

[0061] Cu 2%

[0062] Al 0.3%

[0063] The balance Fe and impurities usually present.

[0064] The alloy meets the standards according to the US standard AISI UNS S46910.

[0065] The wires were cold drawn into diameters of 0.254 mm, 0.33 mm, and 0.43 mm, respectively. One wire of each diameter is now heat-treated at 475°C for 10 minutes, resulting in an increase in the strength of the material and a further increase in relaxation resistance.

[0066] The yield strength and tensile strength were measured by the tensile test according to SS-EN10002-1, and the comparative examples of 8 different carbon piano strings were compared. The approximate composition and string diameter of the comparative example are shown ...

Embodiment 2

[0072] The relaxation resistance was tested by plucking strings of 0.254 mm, 0.33 mm diameter, and 0.43 mm diameter with the plectrum about 200 times per minute. The ingredients are those of Example 1. The test was conducted for more than 24 hours. The plucking position of the piano is set at a distance of 18 cm from the force sensor connected to the computer. The total length of each string is 65cm, and each end of the string rests on two plastic pieces. The distance between each end point and its corresponding force sensor is 5 cm. The diameter and its corresponding audio frequency as well as the initial tension and engineering stress of the strings are given in Table 3.

[0073] table 3

[0074] 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

[0075] The slack test results of strings with diameters of 0....

Embodiment 3

[0083] 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 string is plucked at a distance of 10 cm from the bridge and is subjected to a force corresponding to the breaking point of the 0.10 mm copper wire. The 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 breaking point of the copper wire must also be the point in contact with the plucked string. If the copper wire breaks at any other point, repeat the process. A set of five approved tests are performed on each string, and the results are shown in the graphs according to Figures 5 and 6. The results show that the aging process does not affect the magnetic properties of the material.

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PUM

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Abstract

The present disclosure relates to a music string comprising precipitation hardening stainless steel. The string has a superior resistance to relaxation and is corrosion resistant, thus improving its tuning stability and maintaining its tone quality, thus prolonging its service life.

Description

Technical field [0001] The invention relates to a musical string according to the preamble of claim 1. Background technique [0002] Such strings are particularly known from US 4,333,379, which comprise a steel core of bronze grey cast iron. [0003] Music strings must have many different properties. The most important performance is high mechanical strength, which allows the string to be loaded to its tuning frequency and resist changes in string tension during performance. The level of mechanical strength required depends on the diameter of the strings. Thinner strings are used for higher tones, and generally, the thinner the strings, the higher the mechanical strength required. For example, a 0.254mm (0.010”) guitar string used for tuning E must have a tensile strength of at least 1500MPa for tuning. Moreover, in order to safely withstand the tension generated when playing with the pluck, this 0.254mm The strings should preferably have a tensile strength of about 2500 MPa. [...

Claims

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Application Information

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IPC IPC(8): G10D3/10C22C38/40
CPCC22C38/02C22C38/04C22C38/42C22C38/44C22C38/50C22C38/52G10D3/10
Inventor 希纳·沃苏格戈兰·贝里隆德
Owner SANDVIK INTELLECTUAL PROPERTY AB
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