Contact Materials TRIZ Cases

A silver-coated composite movable contact with a copper intermediate layer maintains stable contact resistance despite wear-induced degradation.

Absorption holes around the welding position absorb base material deformation during contact crushing, preventing overflow and maintaining thickness integrity.

Infiltrating a porous body with liquid copper eliminates brazing, preventing material diffusion and reducing electrode resistance for higher reliability.

A compact disconnector unit with an electromagnetic drive system moves contacts rapidly without additional mechanical parts.

Cold working orients grains in a sintered contact element, eliminating heat treatment and reducing production time while maintaining hardness.

Localized plating materials on crossing-type switch contacts reduce fusion occurrences while maintaining optimal contact characteristics.

Uniformly dispersed MoCr solid solution particles in the copper matrix improve withstand voltage without increasing operation force.

Segmenting the contact surface into titanium, molybdenum, and ruthenium layers prevents pit formation and wear erosion without increasing manufacturing costs.

Additive manufacturing creates multi-material current path parts with hollow geometries, overcoming traditional punching limits to reduce assembly complexity.

Composite silver-carbon contacts suppress plasma flashovers in high-voltage direct current switches, ensuring operational reliability.

Dual-arched contact geometry reduces bounce time and electrical resistance while minimizing precious metal usage.

Welded silver tin-oxide contacts on copper substrates eliminate fusion welding and extend electrical life from 2,000 to over 6,000 cycles.

Plating dispersed metal oxide particles with a solubility-reduced coating prevents particle elution, enabling high arc-resistance and arbitrary shape formation.

Sequential backcrossing introgresses disease resistance into the PH25M2 background, resolving the trade-off between agronomic reliability and plant uniformity.

A silver alloy contact pad embedded with tungsten carbide and carbon fibers enhances erosion resistance.

Adding graphene to silver-tungsten composites reduces arcing energy by 27.1% at 5 kA, extending circuit breaker contact tip endurance.

Electroplating controls silver crystal orientation to increase film hardness.