Guitar Strings: Bronze Wound on Steel, Then Heat-Soaked (Stone and Falcone 1977)

A wound string is a steel core with another wire wrapped round it. Stone and Falcone believed the wrap keeps stresses from the winding and slowly unwinds as the string is played, so the tone goes dead. Their fix: after winding, heat-soak the string, at least 2 hours at 270 °F or 30 minutes at 480 °F for a bronze wrap, then let it cool. Source: W. N. Stone and A. S. Falcone (National Musical String Co.), US 4,063,674 (1977). Unknown: the winding itself (the patent calls it conventional), where phosphor bronze wire comes from, and the gauges. These are linked to unknown heads. The plain strings of the set are steel music wire; that, the oven and the nitrogen are ours. Picture drawn by Youblob.

高级

1 day

说明

Cut the core and plain strings

Cut steel music wire for the cores of the wound strings and for the plain strings of the set. Unknown: the gauges and lengths, and the ball ends.

此步骤所需材料：

0.032 英寸钢制琴钢丝1 as required

所需工具：

斜口钳

未知尺寸

Wind the bronze wrap at room temperature

Wrap phosphor bronze wire helically round each core at room temperature. The patent prefers a wrap that expands more with heat than the core. Unknown: how; the patent says only 'in a conventional manner'.

此步骤所需材料：

磷青铜丝1 as required

所需工具：

未知缠绕方法

未知尺寸

安全眼镜

Heat-soak the wound strings

Heat the wound strings for a bronze wrap at 270-480 °F (132-249 °C): at least 2 hours at 270 °F or at least 30 minutes at 480 °F, shorter the hotter. If the wire tarnishes in hot air, do it without air, in nitrogen or carbon dioxide. The wrap's turns settle into more even spacing.

所需工具：