Thermal bimetal is a kind of precision alloy, consists of two layers (or layers) with different thermal expansion coefficient of metal or alloy layer components as solid combination and into.A group of thermal bimetal yuan layer with low thermal expansion coefficient, the passive layer;Another group of yuan layer with high thermal expansion coefficient, to active layer.Sometimes, in order to obtain special properties of thermal bimetal, can also join the third or fourth layer metal or alloy.Usually, the passive layer are type invar alloy containing Ni34 ~ 50%;Active layer, the brass, Ni, Fe - Ni - Cr, Fe - Ni - Mn and Mn - Ni - Cu alloy, etc.Through different combination of active and passive layer material, you can get different kinds of thermal bimetal, such as high temperature, medium temperature, low temperature, high sensitive, corrosion resistant, resistance and quick action, etc.

application
Bimetallic strip: thermal bimetal is composed of two or more than two layers have different linear expansion coefficient of solid combination of alloy composite materials.Large expansion coefficient of the alloy layer is called the active layer, smaller expansion coefficient of the alloy layer is called the passive layer, between active and passive layer can be adjusted with the middle tier of the role of resistance, when the environment temperature changes, because the expansion coefficient of active and passive layer, bending or rotation.This alloy is used for temperature control, temperature compensation, current limit and temperature indicating temperature sensor in automatic control equipment and instrumentation.Can also be applied to the circuit breaker, switch, thermal relay, all kinds of temperature control components, home appliance protector, electronic protector, overload protector, condensate drain device, temperature controller, thermometer, incubator, meteorological instruments, electric iron, electric rice cooker, refrigerator, fire alarm, fluorescent lamp, oven, lighter, the starter current mode control switch automatically, automatic protection switching rules, etc.Also used for fluid (gas, liquid) valve temperature sensor in low voltage electrical switches, etc.

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Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribbon wire, sheet, tape, strip, rod and plate.

We’ve already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system.

We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.

Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over forty years in this field. During forty years, hundreds of management elites and high science and technology talents were employed.They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market.

Based on the principle of “first quality, sincere service”, our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.

Our products, such us nichrome wire, nichrome strip, fecral wire, fecral strip, thermocouple wire, nickel wire, nickel strip have been exported to Europe, USA, India, Southest Asia, South America,etc.

We are willing to establish strong and long-time partnership with our customers

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