The ordinary copper strip is heated in a reducing atmosphere containing


Posted May 14, 2020 by copperstampingsa

Material: Material: C5111, C5101, C5191, C5210, C1100, C1020, American silver copper strip, beryllium bronze strip, tin bronze strip, bimetal strip, etc.
 
Material of phosphor copper belt:

Material: Material: C5111, C5101, C5191, C5210, C1100, C1020, American silver copper strip, beryllium bronze strip, tin bronze strip, bimetal strip, etc.

When the ordinary copper strip is heated in a reducing atmosphere containing hydrogen or carbon monoxide, hydrogen or carbon monoxide easily reacts with the cuprous oxide (Cu2O) at the grain boundary to generate high-pressure water vapor or carbon dioxide gas, which can cause copper to rupture. This phenomenon is often referred to as "hydrogen disease" of copper. Oxygen is harmful to copper's weldability. Bismuth or lead and copper form a low melting point eutectic, which makes copper hot brittle; and brittle bismuth is distributed in a thin film shape at the grain boundary, which makes copper cold brittle. Phosphorus can significantly reduce the conductivity of copper, but can improve the fluidity of copper liquid and improve the weldability. Appropriate amounts of lead, tellurium, sulfur, etc. can improve machinability.

Heat treatment Fullway Technology Co., Ltd. and mechanical properties of copper strip:
Annealed copper strip has a room temperature tensile strength of 22-25 kgf / mm2, an elongation of 45-50%, and a Brinell hardness (HB) of 35-45.
8. Density of copper strip:
Copper belt is pure copper: pure copper is purple-red, also known as copper belt. Pure copper has a density of 8.96 and a melting point of 1083 ° C. It has excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance.
Nine, the use of copper belt:

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Last Updated May 14, 2020