Tungsten alloy collimator is a component of the radiation head of medical accelerator. In addition to the primary and secondary collimators, an electron beam limiter is installed under the radiation head to limit the range of electron radiation in order to protect normal tissues outside the target area and prevent critical organs from being irradiated.

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Tungsten alloy screws have the advantages of small size and high weight, which are suitable for fastening parts of some precision components, can greatly reduce the volume and play the role of counterweight. Tungsten alloy is easy to process and can be processed for screws of different sizes.
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Tungsten alloy medical syringe shield can be used for collimators, nuclear radiation shields, ray blockers, PET syringe shields, protective canisters, radioisotope containers, DNA (FDG) containers, multi-leaf collimators, etc. .

The advantages of tungsten alloy materials:

1.High radiation mask absorption capacity

2.Under the same radiation mask performance, the tungsten alloy mask is thinner than the lead material

3.Non-toxic, environmentally friendly materials

4.Good machinability

5.Hard and wear-resistant, no need for coating protection

6.Easy to disinfect and sterilize

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Tungsten alloy medical syringe shield can be used for collimators, nuclear radiation shields, ray blockers, PET syringe shields, protective canisters, radioisotope containers, DNA (FDG) containers, multi-leaf collimators, etc. .

The advantages of tungsten alloy materials:

1.High radiation mask absorption capacity

2.Under the same radiation mask performance, the tungsten alloy mask is thinner than the lead material

3.Non-toxic, environmentally friendly materials

4.Good machinability

5.Hard and wear-resistant, no need for coating protection

6.Easy to disinfect and sterilize

For more information about tungsten alloy products, please visit: tungsten-alloy.com

Tungsten alloy bar (90WMoNiFe) with Anviloy 1150 is made from metal powder refined at a specific high temperature using special high temperature powder metallurgy technology. Such tungsten alloy bar material has low coefficient of thermal expansion, good thermal conductivity and good material properties. Product application

1. Tungsten alloy for die-casting field.

2. Hot riveting bearing material (90WMoNiFe), this material can be used as hot riveting bearing material due to its good comprehensive high temperature performance.

3. Hot stamping valve (90WMoNiFe), this material has both thermal conductivity and high-temperature performance, and maintains good red hardness at 1100℃, as the anvil block for valve stamping; it can significantly improve the service life of the anvil block.

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The density of tungsten alloy plate is between 16.9 and 18.1g/cm3, which means that tungsten alloy is the heaviest metal material. 90WMoNiFe Tungsten alloy has excellent radiation shielding ability, electrical conductivity, thermal conductivity, corrosion resistance and mechanical properties. Chinatungsten Online can customize size according to customer requirements. It has the advantages of high density, good elongation, durability and long service life.

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The composition of tungsten alloy tube is composed of tungsten-nickel-iron, tungsten-nickel-copper and tungsten-nickel-copper-iron. Some tungsten alloy tubes also contain metal elements such as cobalt, molybdenum, and chromium. Tungsten alloy tube has large specific gravity and small volume, and can be used in the fields that require parts with small volume and large specific gravity. For example, it can be used as golf ball counterweight, fishing sinker, military counterweight, shotgun bullets, prefabricated fragments, missile warheads, armor-piercing projectiles, and oil drilling platform counterweights. Tungsten alloy tubes can also be used for mobile phone vibrators, balance parts of pendulum clocks and automatic watches, shock-proof tool holders, flywheel counterweights, etc.

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The latest price of Ø120xØ100x200mm high purity tungsten crucible is USD2,100.00/PC on July 24, 2025, EXW XIAMEN, CHINA.

What is Tungsten Crucible?

Tungsten crucible is a high-temperature resistant container made of tungsten that is used to hold liquid materials that are elevated to high temperatures, often for material testing and evaluation purposes. Its regular shape is cylindrical, and the diameter is between 10mm and 500mm. The height is between 10mm and 750mm, and the wall thickness is between 8mm and 20mm.

Characteristics of Tungsten Crucible

The characteristics of tungsten crucible include high specific gravity, high melting point, high boiling point, low vapor pressure, small evaporation rate, low thermal expansion coefficient, corrosion resistance, wear resistance, good thermal conductivity, etc. According to different production processes, tungsten crucibles can be formed by forged, sintered, welded, punched and rotary pressed. Its density ranges from 18.5g/cm3 to 19.2g/cm3.

How to Produce Tungsten Crucible?

The producing processes of tungsten crucible include mixing powders, isostatic pressing, forming, sintering and machining. Four different tungsten powders with particle size in the range of 1.0~5.0um are used for ingredients; the isostatic pressure is about 200MPa, and the holding time is about 7 minutes; the sintering temperature is about 2300°C, and the sintering time is about 7 hours.

Tungsten Crucible Applications

As a high-temperature resistant container, tungsten crucible is mainly used in rare earth metal smelting furnace, quartz glass melting furnace, induction furnace heating element, single crystal furnace high temperature container, sapphire single crystal growth furnace, high temperature vacuum furnace and other industrial furnaces. Its working temperature is generally above 2000°C. Normally, tungsten crucibles should no internal cracks, have accurate dimensions, and smooth inner and outer walls.

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The latest price of φ0.030mm tungsten cutting wire is USD 2.10/KM on July 24, 2025, EXW XIAMEN, CHINA.

What Is Tungsten Wire for Diamond Wire Busbar?

Tungsten wire for diamond wire busbar, also known as Tungsten cutting wire, tungsten wire rope or tungsten-based diamond wire, is a kind of diamond wire with pure tungsten wire or doped tungsten wire as the busbar. It is widely used in wire cutting industry because of its excellent cutting effect.

Advantages of Tungsten Wire as Diamond Wire Busbar

Diamond wire is one of the important tools for cutting silicon wafers that are one of the core components of photovoltaic equipment. The bus bar in the wire is mostly made of carbon steel wire, but studies have shown that fine tungsten wire can replace carbon steel wire thanks to its good characteristics of high tensile strength, high rigidity, good toughness, low torsional stress, fatigue resistance and corrosion resistance.

The purpose of replacing with this metal wire is to deal with the problem of thin wire. At the same time, this wire’s fracture force is proportional to the wire diameter and tensile strength. At present, the wire diameter of high carbon steel wire (busbar) is close to the limit. Fine tungsten wire has stronger tensile strength and can make the wire diameter thinner under the same breaking force.

Compared with made of high carbon steel wire, the wire with tungsten wire as the busbar has a smaller diameter, higher breaking force and better durability, so it is more suitable for application in the future photovoltaic Industry.

Applications of Tungsten Wire as Diamond Wire Busbar

It is is mainly used for cutting and processing highly hard and brittle materials, such as crystalline silicon, sapphire, cemented carbide, optical glass, ceramics, magnetic materials, stone, etc.

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The latest price of φ0.76x3x50mm tungsten filament is USD 1.50/PC on July 24, 2025, EXW XIAMEN, CHINA.

What is Tungsten Filaments?

Tungsten filaments, also called cathodes or electron emitters or electron sources, are mainly made of high-quality tungsten. Of all pure metals, tungsten has the highest melting point (3422°C), the lowest vapor pressure at temperatures above 1650°C, and the highest tensile strength. Tungsten also has the lowest coefficient of thermal expansion of all pure metals. This combination of properties makes tungsten an ideal material.

Why Tungsten Filaments Are Used in Electron Gun?

Tungsten can be used in both thermionic electron guns and field-emission (CFE) electron guns. Electron beams come from filaments made of various materials. The most common is the tungsten hairpin gun, which is widely used in scanning electron microscopes, transmission electron microscopes, and microprobe systems. This filament is a tungsten ring that acts as a cathode. Apply voltage to the loop to heat it up. The anode, which is positive relative to the filament, forms a strong attraction to electrons. This causes electrons to be accelerated towards the anode. Some accelerate near the anode and down the column to the sample.

Why Are Tungsten Filaments in the Electron Gun Folded?

An electron gun works at a high temperature, which is required for thermionic emission. For this, a filament or the cathode should be of a material that has a high melting point in order for it to continuously emit electrons. Tungsten filament is folded with various shapes to help in focusing the electron beam.

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