97 Tungsten-Nickel Iron Bar95 Tungsten-Nickel Iron Bar93 Tungsten-Nickel Iron Bar90 Tungsten-Nickel Alloy Rod

Product Description

ungsten-nickel-iron alloy is a kind of tungsten based (about 90 ~ 98%) and add nickel, iron, copper or other components of the alloy, the specific gravity is generally 17.0 ~ 18.5

Proportionally edited broadcast

Tungsten nickel - iron alloy is an important tungsten - based heavy alloy. They are alloys made by adding nickel and iron to tungsten, and by adding other metallic elements on top of it. The ratio of nickel to iron added is generally 7:3 or 1:1 [1].

Feature editing broadcast

Tungsten-nickel alloy is characterized by high sintering density, good strength and plasticity, and certain ferromagnetism. It has good plasticity and machinability, good thermal conductivity and electrical conductivity, and has excellent absorption capacity for gamma rays or X-rays.

(1) specific weight: the general gravity is 16.5-18.75g/cm3;

(2) High strength: tensile strength of 700-1000Mpa;

(3) Strong absorption of rays: 30-40% higher than lead;

(4) high thermal conductivity: the thermal conductivity of tungsten alloy is 5 times that of die steel;

(5) the coefficient of thermal expansion is small: only iron or steel 1/2-1/3;

(6) Good conductive property; Because of its good electrical conductivity, it is widely used in lighting and welding industry.

(7) Good weldability and machinability [2].

Use editing

Tungsten-nickel alloy is widely used and has become the main tungsten heavy alloy with the largest amount. As a general application, such as counterweight, balance hammer, radiation shielding device, etc., are directly used sintered alloy; However, for applications requiring high mechanical properties, tungsten-nickel-iron alloys require deformation processing and heat treatment to achieve strengthening.

(1) Tungsten-nickel alloy is mainly used in the manufacture of gyroscope rotors, guiding devices and shock absorbers for aviation and aerospace applications;

(2) die casting die, tool clamp, boring bar and automatic watch hammer for mechanical manufacturing;

(3) cores of armor-piercing bullets for conventional weapons, riveting heads and switch contacts for electrical products;

(4) In addition, it is also used to manufacture various ray shielding parts

Summary editor

(1) Under the condition of slow cooling after sintering, the mechanical properties of high nickel-iron ratio tungsten alloy are significantly lower than those of traditional nickel-iron ratio tungsten alloy, while the comprehensive mechanical properties of high nickel-iron ratio tungsten alloy are much better than those of traditional nickel-iron ratio tungsten alloy under the condition of solution quenching.

(2) Under the condition of solid solution quenching, the strength and toughness of tungsten alloy increase with the increase of nickel-iron ratio. When the nickel-iron ratio reaches 9/1, the mechanical properties of tungsten alloy reach the maximum value, and then the alloy performance decreases with the continuous increase of Ni/Fe ratio. The optimal Ni/Fe ratio increases from 7/3 to 9/1.

(3) When the tungsten alloy with high Ni-Fe ratio is sintered and cooled slowly, the non-dispersive β phase precipitates in the bonding phase and the interface between tungsten and bonding phase, which seriously harm the mechanical properties of the alloy. The solid solution quenching heat treatment process can inhibit the precipitation of β phase in the bonding phase, which greatly improves the strength and toughness of the alloy.

 

Tungsten alloy rod/rod has high density, high melting point, small size, extremely high wear resistance, extremely high hardness, high tensile strength, high elongation, high temperature resistance and many other excellent characteristics. Tungsten alloy products are widely used in industrial fields.

 

The production process of tungsten alloy rod is to first mix tungsten powder with other metal powder, press it, and then burn it into a blank semi-finished product. After the blank semi-finished product is spun and cut, the tungsten alloy rod is finally made. These tungsten alloy rods can be manufactured in any length according to customer requirements, with a smooth surface and a diameter of more than 3mm. The hollow tube wall is within 3mm. Tungsten alloy rods can be machined into hollow shapes. Special lengths and structures can be machined according to customer requirements.

 

 

 

Tungsten alloy rod use

 

 

Due to the high density of tungsten alloy rods, the main use of tungsten alloy rods is to control and distribute weight as counterweights. Tungsten alloy rods can be further processed into counterweights.

Tungsten alloy rods supplied by Zhongtungsten Line can be used for counterweight parts, radiation shielding parts, military products, welding rods, molds and so on. Tungsten alloy rods are also used in some sporting goods, such as darts and golf clubs.

 

Tungsten alloy rods also have other uses, such as vacuum electronics, as well as high temperature resistant components. Tungsten alloy rods are widely used in sporting goods.
 

Size available

 

Size: 1 mm -100 mm.

 

Density: 15.8-18.5g/cm3

 

Composition: 85-97%W, W-Ni-Fe, W-Ni-Cu

 

Surface: sintered or abrasive

 

Properties of high specific gravity alloys

 

Small size but high density (usually 16.5 g/cm 3~18.75 g/cm 3), high melting point, high hardness, excellent wear resistance, high tensile strength, good ductility, low vapor pressure, high temperature resistance, good thermal stability, easy processing, corrosion resistance, good shock resistance, extremely high radiation absorption capacity, excellent impact resistance and cracking resistance, And non-toxic environmental protection, and international environmental protection standards are consistent. In view of the above excellent functions of high specific gravity alloy, it is widely used in aerospace, aviation, oil drilling, electrical instrumentation, medical and other industries.