Tungsten copper rods have excellent mechanical properties and conductive and thermal conductivity, and have broad application prospects in the fields of electrical processing, electronic packaging and aerospace. Its properties are evaluated by density, hardness, conductivity, coefficient of thermal expansion, wear resistance, corrosion resistance, tensile and bending strength and thermal conductivity.

density

In physics, the mass per unit volume of a substance is called the density of the substance, which is a physical quantity reflecting the properties of the substance. The density of tungsten and copper rod is a characteristic of its own, which does not change with the change of mass and volume, and the density of tungsten and copper in the same proportion does not change.

hardness

In physics, the ability of a material to locally resist hard objects pressing into its surface is called hardness. The hardness of tungsten-copper rod refers to the local resistance of tungsten-copper alloy rod to the invasion of external objects, and is an index to compare the softness and hardness of various materials.

Electrical conductivity

The ability of tungsten-copper alloy rods to conduct current is called conductivity. The electrical conductivity of various proportions of tungsten and copper is different. Among them, the electrical conductivity is higher when the copper content is high, and the electrical conductivity is lower when the copper content is high. Their ability to conduct electricity is usually expressed in terms of conductivity σ.

Coefficient of thermal expansion

The thermal expansion coefficient of tungsten-copper alloy bar refers to the change of length value caused by the change of unit temperature of tungsten-copper alloy bar under constant pressure (p). It is expressed by the coefficient of thermal expansion (CTE). The unit of the coefficient of thermal expansion of general metals is 1/℃.

Wear resistance

The wear resistance of tungsten-copper bar, also known as abrasion resistance or durability, refers to the resistance of tungsten-copper bar to wear in the reciprocal of wear rate or wear degree under specified conditions.

Bending strength

The bending strength of tungsten-copper alloy bar refers to the ability of tungsten-copper alloy bar to resist external bending without breaking. Generally, three - point bending test or four - point test is used to evaluate it.