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アドコートワイヤ
アドコートワイヤ

ADD COAT wire is used as stretching inhibitor for various automobile moldings in the automobile field and window sash beads in the construction material field and has earned a good reputation.
Generally, in the process of profile extrusion molding, molten resin is extruded through a die with a required cross-section shape and cured to make molded parts with a certain cross section continuously. Molten resin shrinks when it is cooled and cured, leaving molding distortion in the finished molded products. To remove this molding distortion, annealing is required.
Thus, conventionally, this required extrusion → rough cutting → annealing → precision cutting, necessitating a substantial amount of man-hours.
ADD COAT wire allows precision cutting at the time of extrusion molding thanks to its stretching inhibiting effect, achieving a reduction in total costs.
At the time of extrusion molding, a cross head die is used to insert ADD COAT wire into resin while extruding it. The heat of molten resin melts a bonding layer of ADD COAT wire, allowing it to be fused with resin. As molten resin cools and cured, the bonding layer also cools and cures, enabling its adhesion to molding. In this cooling process, ADD COAT-wire restrains resin stretch and molding distortion.

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製品一覧
  • Generic ADD COAT wire for PVC (AL COAT 25R?S/AL COAT 40R?S)
  • Generic ADD COAT wire for olefin (AD-25-O/AD-40-O)
  • High tensile strength ADD COAT wire for SP-70 (SP-AD-70?O)
特徴
  • Molding stretching is prevented, facilitating assembly
  • Precision cutting can be conducted at the time of extrusion molding
  • Shorter start time of extrusion molding and restart time when a malfunction occurs
  • It becomes an index for the control of variable shape extrusion molding
  • Due to the straightness of wire, molding becomes stable, enabling faster speed of extrusion line
  • Due to a long length, the frequency of feeding for extrusion line can be reduced
  • A simple welding machine can be used to cold-weld wires to enable continuous usage.
    Note: Only for generic ADD COAT wire
  • Since it is a round wire, it can be bent flexibly and is easily located in a required position in resin molding
  • The drawing of resin with low molten viscosity can be prevented
  • The linear expansion coefficient of molded products becomes extremely close to that of metal material
  • A wide variety of resin can be accommodated