，谢谢。 Introduction
The electric magnetic pure iron bar is an important raw material in the manufacture of electronic and electrical components, such as electronic switches, transducer, relays, motor coils, and so on. The product conforms to GB/T 1983-1986 and is widely used in the industry.
Features
The electric magnetic pure iron bar produced in accordance with the GB/T 1983-1986 standard has good electrical and magnetic properties, high precision, stable and reliable performance, and is widely used in the industries.
The electric magnetic pure iron bar has good mechanical properties and ductility, which is helpful to reduce the net magnetic loss and improve the efficiency of the motor and other components. The specific resistance is relatively low, and it is not easy to produce arc during welding, which is beneficial to reduce the welding defects.
Requirements
In order to ensure product performance, the electric magnetic pure iron bar should satisfy the requirements of GB/T 1983-1986. The raw material shall be electroslag remelting pure iron, include high carbon steel and pure iron powder, pure iron and graphite powder, and other small steel types. The drawing range of the product is from Φ2mm to Φ16mm, the product length is not limited.
In terms of metallurgical properties, the chemical composition of the electric magnetic pure iron bar should not exceed the allowable range. The distance between the two grain boundaries of the product should be more than 40μm. The toughness of the sample should be more than 17J/ cm2. The average surface hardness of the product should not be higher than 55HRC. The residual magnetism should not exceed the demand.
Test
The following tests are necessary when testing the electric magnetic pure iron bar:
1. Magnetic Test: testing the performance of magnetic flux density and residual magnetism.
2. Electrical Test: testing the resistance, inductance and capacitance of the product.
3. Mechanical Test: testing the hardness, tensile strength, yield strength and elongation of the product.
Conclusion
The electric magnetic pure iron bar produced in accordance with the GB/T 1983-1986 standard has good mechanical, electrical, and magnetic properties, stable and reliable performance, and is widely used in the electronic, electrical, and other industries. Therefore, it is important to follow the requirements of GB/T 1983-1986 when purchasing and using electric magnetic pure iron bar.
