Since 1972, Polymet has provided specialty clad metal products for a wide range of customers, products, and applications for the Electrical, Industrial, Environmental, Telecommunications, Medical, Automotive, Musical Instruments, Aerospace and Defense Markets.
Contact tapes are precision formed overlays designed to meet the requirements of high-speed, automatic welding equipment for the manufacture of electrical contact assemblies. By precisely controlling the thickness of the component materials, a composite material system can be designed that minimizes precious metal usage, maximizes conductivity, and provides a resistive backing for welding to form a contact assembly. Weld projections can be formed as rails, knurls, diamonds, waffles, t-shapes, and custom profiles. Contact tapes are typically traverse wound on plastic spools.
Polymet’s V-Slitting capabilities produce contact tapes with a width-to-thickness ratio as low as 2:1 while eliminating the burr-up, burr-down condition resulting from conventional slitting methods. After V-Slitting, the material is form rolled to provide a precise contact profile and to form a close tolerance rail or patterned backing to assure consistent weldability.
Polymet draws fine wire in gold alloys, silver alloys, and Palmet alloys. Chemical compositions are precisely controlled to meet the customer’s specification. Finished wire is produced to meet their specifications for elongation, minimum break load, and tensile strength.
Pure gold wire is available in regular strength or high strength versions for thermosonic and ultrasonic bonding applications. Popular sizes range from 0.0005” to 0.0020”diameters. Larger diameters are also available.
7091 (Pd, Pt, Ag) and 7075 (Pd, Pt, Au, Ag) Palmet alloys are available in wire diameters from 0.002” to 0.020” diameters.
Thermostat metal spiral and helix coils are formed in-house from our thermostat metal for a wide variety of customer applications including thermometers, gauges, heating, refrigeration, basement ventilation, and automotive where high rates of thermal deflection and mechanical force is required.
Made from 0.004” to 0.125” thick TM, coils are made with a wide range of inside and outside diameters along with inside and outside tab configurations to suit our customer’s performance and space requirements. We offer automatic, semi-automatic, and hand-wound coils depending on volume and shape requirements.
Assemblies are made by brazing, welding, staking, and crimping the components required to meet your specifications. We look forward to working with you to determine the optimal design and cost.
Thermostat metal spiral and helix coils are formed in-house from our thermostat metal for a wide variety of customer applications including thermometers, gauges, heating, refrigeration, basement ventilation, and automotive where high rates of thermal deflection and mechanical force is required.
Made from 0.004” to 0.125” thick TM, coils are made with a wide range of inside and outside diameters along with inside and outside tab configurations to suit our customer’s performance and space requirements. We offer automatic, semi-automatic, and hand-wound coils depending on volume and shape requirements.
Assemblies are made by brazing, welding, staking, and crimping the components required to meet your specifications. We look forward to working with you to determine the optimal design and cost.
Cantilever, simple beam and U-Shapes convert temperature change to mechanical force and smooth controlled movement. Each configuration offers a specific movement. Polymet’s engineering team with work with you to develop the right TM composition and shape to obtain the desired performance over the temperature range expected.
Used by the world’s most renowned musical instrument makers, Polymet fret wire is specified in most models of high-quality string instruments. Most replacement frets in the marketplace are also made using Polymet fret wire.
Starting with the purest nickel-silver wire, Polymet’s fret wires are formed into the precise fret profile specified by our customer in a high precision, continuous, multiple step process to shape the fret wire to the proper surface quality, dimensional accuracy and aesthetic appearance. The wire is then wound into coils or cut-to-length to the customer’s specification.
Polymet clads long coils of dissimilar metals together using roll bonding with extreme pressure and heat
as needed to optimize bond strength and integrity.
To assure the best possible bond, our hot bond process is performed in a controlled atmosphere that
prevents oxidation or the introduction of impurities at the bond interface. Cold bonding is utilized for materials best clad without heat.
Finished thicknesses from 0.004” to 0.218”. Widths up to 4”. Longest coils in the market.
