Method of manufacturing mouthpiece for wind instrument

1. A method of manufacturing mouthpieces for a wind instrument, the method comprising:

step S- 1 of pulverizing a first material made of a synthetic resin material and a second material made of a mineral material into particles having a substantially same size wherein hard rubber is applied as the first material, and at least one of gold, silver, copper, lead, zinc, iron, manganese, tungsten, molybdenite, tin, bismuth, stibnite, limestone, dolomite, silica, silica sand, feldspar, serpentine, kaolin, graphite, talc, agalmatolite, diatomite, asbestos, fluorspar, mica, sericite, andalusite, alluvial gold, monazite, zircon, ilmenite, magnetite, and garnet is applied as the second material;

step S- 2 of mixing the first and second materials at a predetermined ratio wherein the second material is mixed in a proportion of 10 to 70 parts by weight out of 100 parts by weight;

step S- 3 of melting the mixed materials and continuously extruding a primarily shaped product having a same sectional shape, a temperature for the melting step S- 3 being set based on a melting temperature of the first material;

step S- 4 of cutting the extruded primarily shaped product into cut primarily shaped products at predetermined intervals;

step S- 5 of forming secondarily shaped products by machining the cut primarily shaped products into the mouthpieces; and

step S- 6 of strengthening surfaces of the mouthpieces formed in the forming step S- 5 wherein the strengthening step S- 6 is performed through a heat treatment process and a drying process when the mixing proportion of the second material is larger than that of the first material, and is performed through a surface coating process when the mixing proportion of the second material is lower than that of the first material.