General (Wire rings)

Various wires are formed into round shape by a special machine (multi-forming machine) and the ends are butt welded to make wire rings in which the strength of the welded part is stronger than the wire itself. By combining of these wire rings, gaskets made of expandedgraphite sheet base material become superior material with heat resistance and fatigue resistance, exhibiting outstanding sealing durability.

Features (Wire rings)

• Mass produced with high dimensional accuracy (Inner diameter, thickness etc.);
• Strength of the welded part is higher than that of the wire itself. (Thorough welding control);
• Manufacturing with the use of various wires is possible. (Annealed wire, galvanized iron wire,
  stainless steel wire, etc);
• Supplying of large quantities at low cost is made possible by fully automatic production machines (Introduction of fully automatic production machine).

Production specifications (Wire rings)

 

Items	Specification values	dimensions
Type of wires	Various types of wires such as Iron wire (bright annealing) Galvanized iron wire Stainless steel wire (SUS 304)
Wire diameter	Wire diameter Dia.φ0.8mm -φ1.6mm (JIS specification values)
Inner diameter	Ring inner diameter Dia.56mm - 155mm (Permissible tolerance ±0.1mm)
Flattening	Example of processing Wire diameter:φ1.2mm After flattening: 1.05mm ±0.03

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