Products Description
What is Relay Yoke Stamping? It is a magnetic circuit component for electromagnetic relays, manufactured from high-purity electrical iron using a precision stamping process. Serving as a core structural element within the relay's housing and magnetic flux loop, it fulfills critical functions involving structural support, magnetic circuit closure, and mechanical fixation. This product is widely utilized in relay applications across various sectors-including low-voltage electrical appliances, new energy vehicles, and industrial automation control-providing a reliable physical foundation for electromagnetic conversion systems.
Product Characteristics
Heterogeneous Micro-Composite Shell
Precision Relay Yoke Stamping Part's core consists of high-purity electrolytic iron-a ferrite material characterized by exceptional magnetic softness and high homogeneity-while its surface is encapsulated by a dense, continuous, crystalline nickel plating layer (3–5 µm thick), which completely isolates the underlying pure iron from the external oxidizing environment.
High-Dimensional Geometric Fidelity
The Magnetic Yoke Metal Stamping for EV Relay typically features precision L-shaped bends and positioning bosses. Following high-speed, high-tonnage stamping and shearing processes, the perpendicularity and flatness of the bent sections are locked within an extremely narrow tolerance band, thereby eliminating cumulative mechanical tolerances during final assembly.
Ultra-Low Background Magnetic Hysteresis
The Sheet Metal Relay Yoke Assembly material exhibits extremely low levels of internal lattice impurities, endowing it with the physical properties necessary for transient response to weak electromagnetic signals, and enabling the rapid directional alignment and unimpeded resetting of magnetic domains.
Technical Features
Pure Iron Magnetic Stabilization Stamping Technology
Precision Relay Yoke Metal Stamping Parts undergo a pre-annealing magnetic stabilization treatment prior to forming; this process prevents mechanical stamping stresses from disrupting the magnetic domain structure, thereby fully preserving the inherent soft magnetic properties of the DT4E material.
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3–5μm Coating Thickness Control Technology
Electromagnetic Relay Yoke Frame utilizes a pulsed electroplating process to precisely control the thickness range of the nickel plating. The resulting coating is uniform and free of deviations, effectively balancing the requirements for corrosion protection with strict assembly clearance tolerances.
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Stress-Free Integrated Forming Technology
Relay Iron Yoke Bracket employs a segmented, slow-speed stamping method that gradually releases processing-induced stresses. This technique completely eliminates post-processing deformation and warping, thereby guaranteeing the flatness and dimensional integrity of the component.
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Magnetic Circuit Dimensional Matching Technology
Precision Relay Yoke Stamping Part strictly adheres to the magnetic circuit spacing and mounting dimensions of the T73 model. This precise alignment results in lower magnetic circuit losses and ensures consistent, uniform actuation thresholds across entire production batches.
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Dense Coating Passivation Technology
A post-plating passivation treatment seals microscopic pores within the coating, significantly enhancing resistance to oxidation and discoloration. This feature ensures Magnetic Yoke Metal Stamping for EV Relay suitability for long-term storage and reliable performance in complex operating environments.
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Frequently Asked Questions
Q1: What materials are used for Precision Relay Yoke Metal Stamping Parts?
A1: We primarily use cold-rolled electrical pure iron sheets (grades DT4E or DT4C); however, other soft magnetic materials can also be utilized based on specific customer requirements.
Q2: How is the consistency of the nickel plating thickness for Electromagnetic Relay Yoke Frame ensured?
A2: Consistency is ensured through the precise control of electroplating process parameters and real-time monitoring using inline thickness gauges, maintaining the plating thickness within the standard range of 3–5 μm.
Q3: Is annealing required after the stamping process for Relay Iron Yoke Bracket?
A3: Yes, it is required. Stamping introduces processing stresses that can negatively impact magnetic properties; therefore, the parts must undergo annealing in a protective atmosphere at temperatures between 750°C and 850°C to relieve these stresses and restore their magnetic characteristics.
contact us
If you are seeking Relay Yoke Stamping solutions for the T73 and other relay platforms, we invite you to contact us. Our engineering team offers customized support-based on drawings, samples, or performance specifications-to help you shorten development cycles and enhance product consistency.
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