NF46 PTC Ni-Fe Alloy Wire for Inductors and Current Sensors

NF46 PTC Ni-Fe Alloy Wire Low Curie Point and Medium Saturation Polarization for Inductors and Current Sensors, Resistance0.46

Some Key Features of NF46 Include:

1. Low Coercive Field:

This alloy can exhibit a very low coercive field, which is beneficial for applications requiring high magnetic sensitivity.

2. Magnetic Properties Tunability:

The magnetic properties of NF46 can be adjusted by adding elements like copper, chromium, or titanium, effectively reducing the remanence and the coercive field.

3. Tuned Curie Point and Hopkinson Peak:

These features are advantageous for new non-contact temperature sensing technology, making the alloy suitable for precise temperature control applications.

4. Great Plasticity and Soft Magnetic Behavior:

When austenitic, these face-centered cubic (fcc) Fe-Ni materials exhibit great plasticity and very soft magnetic material (SMM) behavior with respect to magnetic anisotropy energies.

5. Low Curie Point:

Industrial austenitic FeNi(Cr,Mo,etc) alloys, similar to Ni45-50, are characterized by a low Curie point (20 < Tc < 450 °C), which is useful in various temperature-sensitive applications.

6. Saturation Polarization:

NF46 has a saturation polarization of medium amplitude at room temperature, which is a significant property for magnetic applications.

7. Corrosion Resistance:

Ni-Fe alloys typically offer good corrosion resistance, making them suitable for use in harsh environments.

8. High Workability:

These alloys are often easy to work with, allowing for the creation of complex shapes and structures through processes like high energy ball milling.

9. Potential for Technological Applications:

Ongoing research and development in the field of Fe-Ni alloys, including NF46, are focused on improving their magnetic properties and expanding their applications in various technological fields.

These features make NF46 alloys suitable for a range of applications, from aerospace and medical to automotive and energy sectors, due to its hardness, corrosion resistance, and thermal stability.

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Applications:

• Transformer Components: NF46 alloys are traditionally used in the manufacturing of cut-out parts for transformers due to their magnetic properties .
• Synchro-Resolvers: These alloys are utilized in synchro-resolvers, which are precision devices used for measuring angular position in various control systems.
• Miniaturized Motors: The magnetic characteristics of NF46 make it suitable for use in the construction of miniaturized motors.
• High-Sensitivity Relays: Stamped parts for high-sensitivity relays are made from Ni45-50 alloys, benefiting from the material's magnetic properties .
• Low-Frequency Inductors: NF46 alloys are used in low-frequency inductors, where their magnetic properties contribute to the efficiency of these components.
• Open-Loop Current Sensors: The cores for open-loop current sensors are often made from NF46 alloys, leveraging their magnetic properties for accurate current sensing .
• Temperature-Controlled Induction Heating: The alloy's properties make it suitable for use in temperature-controlled induction heating applications, where precise temperature regulation is required.
• Additive Manufacturing: NF46 alloys are also used in additive manufacturing to create actuator parts, taking advantage of the material's ability to be processed into complex shapes .
• Torque Sensors: The development of high precision torque sensors benefits from the very low coercive field possible with NF46 alloys .
• Gas Safety Actuators: NF46 alloys are used in gas safety actuators, where their magnetic properties contribute to the reliability and safety of the devices.

Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires

Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire

Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire

Mechanical properties (tensile strength)

Size (diameter)

Company Overview:

Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and preci.sion of our products. We have the tightest tolerances and deliver within a few days to a fewweeks. As a result, we have become the leading alloy wire supplier in the industry.

Senphus Subsidiaries:

• Jiangyin Chengxin Alloy Material Co., Ltd.
• Jiangyin Senphus Electrical Materials Co., Ltd.
• Jiangsu Xiangcheng Supply Chain Management Co., Ltd.

Jiangyin Chengxin Alloy Material Co., Ltd.: With nearly 20 years of experience, Jiangyin Chengxin is a leading alloy wire manufacturer in China. We offer a wide range of services, from fine wire drawing to resistance wire manufacturing. Our specialty lies in the quality and precision of our products, achieving the tightest tolerances and delivering orders within days to weeks. As a result, we have established ourselves as the premier supplier of alloy wire in the industry.

Our product range includes:

• Copper-nickel alloys (CuNi1-CuNi44)
• Karma (Nikrothal L/Evanohm/Alloy 800)
• Manganin and Constantan
• Nickel-chromium alloys
• Thermocouple alloys (Type K, N, E, T, J)
• Thermocouple extension wire
• PTC thermistor resistance alloy
• Pure nickel wire and Monel alloy

These alloys are available in various forms, including wire, ribbon, stranded, and enamelled. Major applications include seat heating, underfloor heating, military projects, aerospace, household appliances, heating wire, mechanical and electrical plants, and temperature instruments. Our manufacturing processes are ISO 9001:2015 certified, and we specialize in fine and ultra-fine wire drawing, offering wire diameters from 0.025 mm (0.001") to 13 mm (0.51") in small batches, medium volumes, and mass production. We maintain a comprehensive quality inspection system, including in-house chemical analysis, chromatographic analysis, metallurgical analysis, pinhole tests, wire construction tests, and tension tests to ensure the highest quality standards.

Senphus Electrical Material Co., Ltd.: Founded in 2003, Senphus Electrical Material Co., Ltd. integrates research, manufacturing, and sales of electric heating alloys, heating cables, heating wires, and heating products. Leveraging over a decade of technical expertise in heating alloy wire, we have adopted advanced heating cable technology and machinery, successfully developing heating cables, temperature controllers, and temperature control systems suitable for building heating, pipe insulation, outdoor snow melting, wind power blade production, car seat heating, and healthcare applications.

The company is recognized as a high-tech enterprise in Jiangsu Province and a small giant enterprise in Jiangyin City, specializing in innovative technologies. We operate the "Wuxi Heating Cable Engineering Technology Research Center" and collaborate with experts from renowned domestic universities. Our portfolio includes 5 invention patents and over 30 utility model patents, showcasing our strong research and development capabilities.

With an annual output exceeding 1,000 tons of thermal alloy wire and an output value of approximately 105 million yuan, our products are well-received in markets such as the UK, Italy, Canada, Peru, and Spain. Our heating cables generate an annual output value of over 80 million yuan, with exports to Germany, Japan, the United States, Malaysia, Denmark, Brazil, and other countries.

The company has successfully passed multiple quality management system certifications, including IATF 16949, ISO 9001, ISO 14001 (Environmental Management System), and ISO 45001 (Occupational Health and Safety Management System). Our heating cables and related products have also obtained test reports from the Shanghai Cable Research Institute Test Center and received certifications such as UL (United States), VDE (Germany), CE (European Union), and RoHS.

Commitment to Quality: We adhere to the business commitment of "Reputation First, Quality First, Customer First" and uphold the quality policy of "Integrity-Based, Quality-Oriented, Excellent Service." We are dedicated to providing accurate products and professional services, and we look forward to collaborating sincerely with you to achieve mutual success.