99.95% pure tungsten screw connection bolts.
The production of high purity tungsten (e.g. 99.95%) nuts, washers, screws and bolts often involves complex processes designed to ensure that the finished product has the required physical and chemical properties, especially in applications with high temperatures, high pressures or where high corrosion resistance is required. The following is an overview of this production process:
Tungsten Powder Production: First, high purity tungsten powder is prepared by chemical or physical methods. This may include the reduction of tungstic acid or tungsten oxide to produce fine tungsten powder.
Mixing: Tungsten powder is mixed with possible alloying elements and/or binders to improve its processability or final properties.
Pelletizing: The mixture may be pelletized for subsequent pressing steps.
Cold Isostatic Pressing (CIP) or Hot Isostatic Pressing (HIP): Mixed powders are pressed under high pressure to a predetermined shape. This step is usually carried out at room temperature (cold pressing), but can also be carried out under heated conditions (hot pressing) to improve density and mechanical properties.
Sintering: The pressed part is sintered at high temperatures to reduce porosity and increase strength and density. Tungsten is sintered at very high temperatures, often in excess of 1500°C. In some cases, vacuum or protective atmosphere sintering may be used to prevent the introduction of impurities.
Machining: The sintered part is machined as necessary to achieve the final size and shape. The high hardness of tungsten requires machining with carbide or diamond tools.
Surface Preparation: This may include polishing, cleaning or coating to improve corrosion resistance, reduce coefficient of friction or improve appearance.
Inspection and testing: The final product will undergo stringent quality control inspections, including tests on dimensional accuracy, density, hardness and strength to ensure that it meets the requirements of the specific application.
Due to the special properties of tungsten, the entire production process requires precise control, including strict management of temperature, pressure and atmosphere. In addition, the machining and sintering process of tungsten products is also very demanding on equipment, requiring materials and components that are resistant to high temperatures and corrosion.
Pure tungsten nuts, washers, screws and bolts are very popular in a variety of application scenarios requiring extreme performance due to their unique physical and chemical properties. Below are some of the common applications for these tungsten components:
Aerospace
In aerospace, tungsten components are used in environments where they are subjected to extremely high temperatures and pressures, such as in rocket motors and other critical parts of spacecraft. The high melting point of tungsten ensures that these parts maintain their structural and functional integrity at extreme temperatures.
Nuclear reactors
In nuclear technology applications, tungsten's high density makes it an ideal material for radiation shielding. Tungsten nuts and bolts are used to secure and connect structural components in nuclear reactors, providing a reliable guarantee of radiation safety.
High Temperature Furnaces
Tungsten components are also used in a wide range of applications in high-temperature furnaces, especially where very high temperatures are required for material processing or chemical reactions. The high melting point and strength of tungsten are particularly important under these conditions.
Medical equipment
In the medical industry, especially in radiation therapy and diagnostic equipment, tungsten components are widely used due to their excellent radiation shielding capabilities. Tungsten nuts and bolts ensure the structural stability of the equipment while protecting operators and patients from unwanted radiation.
Scientific experiments
Tungsten components are often used in high-pressure and high-temperature experimental equipment in the field of scientific research, especially in physics and materials science experiments. Their resistance to high temperatures and high strength are crucial to the success of the experiments.
Electronic and electrical applications
Tungsten's good electrical conductivity and corrosion resistance make it the material of choice for certain electronic and electrical applications, e.g. in connectors for high-power electronic devices.
Precision industry
In precision industrial applications requiring extreme accuracy and durability, such as high-precision mechanical equipment and instruments, tungsten components are widely used for their excellent stability and wear resistance.
These applications utilize tungsten's unique high melting point, high density, high strength, and other physical and chemical properties, demonstrating the important role of tungsten materials in modern technology and industry.
| Product Name | High strength 99.95% pure tungsten screw connection bolts |
| Material | Tungsten |
| Specification | Customized |
| Surface | Black skin, alkali washed, polished. |
| Technique | Sintering process, machining |
| Meltng point | 3400℃ |
| Density | 19.3g/cm3 |
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