1-Base Material: Electrician pure iron cold rolled steel (China model No DT4E/DT4C/SPCC)
2-Surface Plating:
(1)Annealing with high temperature to remove coercive force;
(2)No plated or as require Copper-plated,Copper primer and nickel plating,etc.
3-OEM/ODM:Accepted,need your drawing
4-Free Samples:10-50pcs is allowed
5-Lead Time:Samples 10-20days,Orders 7-10days(including the tooling/die production)
6-Production Capacity:50,000,000 pcs/month
7-Packing:Inner plastic bag/box,Outer carton/pallet
8-Payment Item:T/T,L/C by USD/EUR/RMB
9-Quality Standard:ISO9000,IATF16949,RoHS,REACH
10-Application:Relay,Contactor,Switch,Thermostat,Breaker,other High/Low-voltage electrical appliances.
The characteristics of Electrical Pure Iron Stamping Parts :
1-Good electromagnetic performance: low coercivity, high permeability, high saturation magnetic induction, stable magnetism and non-magnetic aging.
2-The smelting process of electromagnetic pure iron series adopts hot metal pretreatment, RH refining, electromagnetic stirring and other processes. The interior is dense and uniform, with low gas content and low carbon content in the finished product.
3-Good cold and hot processing performance:Electrician Pure Iron cold processing can meet the process requirements of turning, piers, punching, bending, drawing, etc., hot processing, such as re-forging and re-rolling, the sensitivity of red brittleness is small, and it can be guaranteed in a larger temperature range Processing within.
4-Good surface quality: good welding and electroplating performance.
5-High dimensional accuracy: ultra-precision cold-rolled plates can be provided, such as thick plates ≤1.5mm, and the thickness tolerance can be guaranteed ≤±0.01mm.
The use of electrician pure iron Punching:
1.Electrician Pure Iron various types of Relay Cores,Armature,Yokes in electrical appliances and telecommunications.
2. Coil Soft Iron used for turning and focusing magnets of high-energy accelerators, electro-acoustics, solenoid valves, electromagnet cores of magnetic separation equipment, etc.
3. Electromagnet Pure Iron used for high-resolution magnet pole heads on analytical instruments, electromagnetic separators and geophones in geological instruments, focusing magnets and scanning electromagnetic lenses for electron microscopes, aircraft automatic control components, pole heads for magnetizers, etc.
4. The iron core and shell used for DC motors.
5. Electrical appliances or magnetic parts used in automobiles and lathes.
6. Shielding materials used for all kinds of magnetic shielding covers or shielding boxes that require high shielding equipment.
Reduce the coercive force or stress of electrical pure iron through high temperature annealing
Why is the coercivity value of pure iron Cold rolled steel material increased a lot after processing the finished product. The product use effect is not ideal. Is there something wrong with the material, or is there something hidden? For this reason, our company specially organizes the following information, hoping to solve problems for our friends.
①Why should pure iron be annealed?
Answer: Because cold working causes many crystal defects (dislocations, stacking faults, etc.) in pure iron, and causes internal stress, increases the difficulty of magnetic domain wall movement, increases Hc, and decreases μm value. In order to eliminate these adverse effects, electrical pure iron must be subjected to stress relief annealing or recrystallization annealing.
②What are the improvements to pure iron Cold rolled steel after annealing?
Answer: The high annealing temperature makes the crystal grains coarser and eliminates the stress of the pure iron material, which is beneficial to the magnetic permeability. Therefore, the stress-relief annealing generally adopts the highest temperature that does not cause α←→γ phase transition to avoid phase transition during cooling. Grain refinement.
③The annealing temperature and time of Electrician Pure Iron?
Answer: Yaoqiang pure iron usually adopts the recrystallization annealing process system to eliminate the cold working stress: install the furnace below 600℃, raise the temperature to 800℃ with the furnace, and then slowly heat to 830～890℃, keep the temperature for 4h, and then the temperature is no more than The cooling rate of 50℃/h is cooled to 700℃, and finally cooled to below 500℃ with the furnace. The entire annealing is performed in hydrogen or vacuum.
Contact Information:
Mr.Terry Young (Sales Manager&Technology Engineer)
Apollo Electronic Components (Xiamen) Co.,Ltd
Xiamen Apollo Stamping Welding Technology Co., Ltd
Add:225#,Jinshang Road,Huli District,Xiamen City,Fujian Province,China,361009
Tel&Fax: 0592-5765084, Mob/WhatsApp/WeChat: 0086-13859903038 ,QQ: 1260358661
Email: yfd@china-electronic-components.com
Web: www.china-electronic-components.com , www.stamping-welding.com
Since 1990,professional in Silver Contact Rivet&Core&Screw Terminal for Relay&Switch&Contactor&Breaker ect Riveting&Welding solutions !