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Zirconium wire is a filamentary material made of zirconium or zirconium alloy. It has excellent corrosion resistance, high melting point, low thermal neutron absorption cross section and other characteristics. It is widely used in chemical industry, nuclear industry, aerospace, medical equipment and other fields.
1. Characteristics:
Corrosion resistance: Zirconium wire has excellent corrosion resistance to most acid, alkali and salt solutions, especially in high temperature and high pressure environment.
High melting point: The melting point of zirconium is about 1852°C, which is suitable for high temperature applications.
Low thermal neutron absorption cross section: Zirconium has a very low absorption cross section for thermal neutrons, which is an ideal choice for fuel cladding materials in nuclear reactors.
Biocompatibility: Zirconium and its alloys are non-toxic and compatible with human tissues, and are often used in medical devices and implants.
2. Common applications:
Chemical industry: used to manufacture corrosion-resistant equipment such as heat exchangers, reactors, pipelines, etc.
Nuclear industry: used as cladding material for nuclear reactor fuel rods.
Aerospace: used for high-temperature, high-strength structural components.
Medical devices: used to manufacture surgical instruments, dental implants and orthopedic implants.
Electronic industry: used to manufacture high-purity zirconium wires, which are used in the manufacture of electronic components.
3. Common zirconium alloys:
Zr-2 and Zr-4: These two alloys are commonly used zirconium alloys in the nuclear industry, with excellent corrosion resistance and low thermal neutron absorption cross-section.
Zr-702: A pure zirconium alloy, commonly used in chemical equipment.
Zr-705: A zirconium alloy containing a small amount of niobium, with higher strength and corrosion resistance.
4. Implementation standards:
ASTM B550/B550M: American Society for Testing and Materials standard, applicable to zirconium and zirconium alloy strips, plates and wires.
GB/T 8769-2010: Chinese national standard, which specifies the technical requirements for zirconium and zirconium alloy wires.
AMS 6507: Aerospace material specification, applicable to zirconium alloy wires in the aerospace field.
5. Production process:
The production of zirconium wire usually includes smelting, forging, wire drawing and other processes. Due to the high chemical activity of zirconium, the atmosphere needs to be strictly controlled (such as inert gas protection) during processing to avoid oxidation.
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