High volume, high quality assurance
Polygon utilizes two bonding processes to manufacture tubes that provide optimum physical and dielectric performance. These processes capitalize upon the individual chemical and mechanical strengths of both resin chemical bond and structural interlocking of reinforcement maximizing the total strength of the Polygon Tube™. These insulating composite tubes utilize their inherent modulus of elasticity to ensure a permanent press fit on the armature shaft.
Polygon Tube provides high torque strengths and has a UL Certified continuous temperature index rating of 120°C. This patented manufacturing techniques produced double insulated tubes with unparalleled physical properties and unmatched electrical insulation.
In comparison to conventional molding or paper tube assemblies, the implementation of the Polygon Tube into the motor assembly enables the manufacturer to reduce production costs. Standard tolerances have been established that allow these composite tubes to be slipped or press-fit into the motor laminations. The armature shaft is then pressed into the assembly, securely locking the laminations and the shaft.
To ensure that each double insulated Polygon Tube surpasses all electrical insulation requirements we have implemented an uncompromising inspection process. Each tube is tested at 5000 volts minimum to guarantee its dielectric integrity. Polygon Tube carries approval by Underwriters' Laboratories, Inc. to grade AFW-G-10. Certification and SPC controlled processing ensures "just in time" deliveries and eliminates inspection on the customer's end.
The anisotropic properties composite materials are often misunderstood. Therefore, it is helpful to review some of Polygon Tube's basic material features as they relate to armature insulation.
Patented Manufacturing Process
Polygon utilizes two bonding processes to manufacture tubes that provide optimum physical and dielectric performance. These processes capitalize upon the individual chemical and mechanical strengths of both chemical resin bonds and structural support maximizing the total strengths of the Polygon Tube. These insulating composite tubes utilize their inherent modulus of elasticity to ensure a permanent press fit on the armature shaft.
The composite tube consists primarily of two dielectric materials:
Reinforcing material: Consisting of continuous fiber bundles of electrical grade "E-Glass" woven together at a specific helix angle with respect to the tube axis and thermoset epoxy resin, property retention (both in-dielectric and structural) electrical temps.
Epoxy: That has a Tg of approximately 120°C [248°F]
Properties in the axial, hoop, and through the wall in a composite are anisotropic and are controlled with fiber orientation. The composite's physical properties are not less consistent in ultimate strength or elasticity.
Any ratings are typical for design purposes. Your design parameters may affect final ratings. Consult with a Polygon sales engineer for guidance. Final testing and approval is the customer's responsibility for their application. This information is derived from our testing and published data. There is no assurance of these properties, or warranty provided that these products are suitable for any particular purpose or operational situation.
Polygon certifies that their product will be free from material defect. Polygon will not accept any liability for loss, damages, or costs from use or misuse of our products.
Specifications are subject to change, and may be affected by our continual process of improvement. Changes may be made without prior announcement.