High Purity Tungsten Rod

The value of high-purity tungsten rods comes from their excellent performance combination:

• Ultimate high temperature resistance: With the highest melting point among all metals (3422 ° C), it has minimal strength loss in high-temperature environments and is an ideal choice for high-temperature furnace heating elements and insulation screens.
• High density and high strength: With a density of up to 19.3 g/cm ³, it provides excellent radiation shielding capability and strong inertial impact force, suitable for counterweights and radiation protection components.
• Excellent physical stability: low thermal expansion coefficient, high thermal conductivity, and good high-temperature creep resistance, ensuring dimensional stability and no deformation under thermal cycling conditions.
• Excellent corrosion resistance: It has good resistance to air, water, and various acidic and alkaline media at room temperature, and has a long service life.

 

The production of high-purity tungsten rods is a perfect combination of technology and process, and the main steps include:

• Raw material preparation and doping: High purity tungsten powder is used as the raw material, and trace amounts of potassium, silicon, aluminum and other elements are precisely doped according to performance requirements to improve its high-temperature anti sagging performance.
• Isostatic pressure forming: tungsten powder is loaded into a flexible mold and subjected to ultra-high pressure through a cold isostatic press to form a high-density and uniform billet.
• Vertical melting sintering: In a hydrogen protected environment, the billet is heated to near the melting point by direct electrification, causing the internal powder particles to fuse and form a dense metal crystal structure.
• Plastic processing: Using processes such as rotary forging, rolling, and drawing, the sintered billet is subjected to plastic processing at a specific temperature, gradually deforming to the target size and significantly improving its strength and toughness.
• Precision machining and annealing: Finally, precision grinding is carried out using a centerless grinder to obtain accurate dimensions and a smooth surface, and stress relieving annealing treatment is performed as needed.

In many key fields, high-purity tungsten rods are irreplaceable due to their performance limits:

• The backbone of high-temperature industry: In equipment such as sapphire growth furnaces and vacuum sintering furnaces, as heating elements, support rods, and crucibles, their high-temperature resistance is the core of whether the equipment can operate stably.
• The protective barrier of nuclear medicine: Its high-density characteristics make it the preferred material for blocking gamma rays, used to manufacture radiotherapy collimators and radioactive isotope storage containers, directly related to medical safety.
• The cornerstone of high-end manufacturing: as an electrode in electrical discharge machining and a high-temperature resistant component in the semiconductor field, its stability is a prerequisite for ensuring product processing accuracy and consistency.

Choosing Shaanxi Zhongheng Weichuang not only provides you with a product, but also a complete material solution and worry free service guarantee.

• Lean production and strict quality control: We control from the source, using high-quality high-purity tungsten powder and strictly following powder metallurgy and pressure processing technology to ensure that the purity, density, and grain structure of each batch of high-purity tungsten rods meet or exceed the requirements of ASTM, GB, and other standards.
• Full chain qualification certification: We have prepared complete qualification certification documents (including material reports, factory inspection certificates, third-party testing reports, etc.) to ensure product traceability and meet the strict audit requirements of high-end industries such as military, aerospace, and medical for suppliers.
• Efficient delivery commitment: We have an efficient supply chain and inventory management system, and solemnly promise to control the delivery time within 15 working days to effectively respond to your urgent needs and ensure your project progress.
• Professional packaging and logistics: In response to the high hardness but brittleness of tungsten rods, we adopt professional protective packaging solutions such as customized corner protectors and independent winding packages to ensure that the products arrive safely in your hands without damage during transportation.
• Thoughtful after-sales technical support: We provide full process technical support from material selection, application consultation to processing suggestions, and have a professional team to respond to your questions in a timely manner, truly achieving seamless integration from "production to after-sales" and becoming your trusted strategic partner.

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