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Provides compression springs and tension spring, as driven components memory alloy spring and bias components Assembly enables two-way movements, used in the device driver, application-wide temperature 30 degrees c-100°C, thrust 20N — 300N, thermal cycle life N = 105-107, heat-30°C~-250°C.

The spring is NiTi memory alloy wire-wound into using shape memory alloys of single -way memory effect, elongated, with the temperature rise; they are free to reply to the original length of driven components. This spring is industrial shape memory alloy components of a typical structure.

After elongated, with hot water or hot air to heat source, reply to the original longer, temperature of 65°C-85°C, the original long as 80mm.

Shape memory alloy for Martensite Transformation (i.e. Organization of phase, as used here, low temperature means the room temperature) is a soft, high-temperature phase (that is, the parent of the phase, as used here, high temperature means the 65°C-85°C) for hard phase.