What is a Tungsten Disc for Car Horn?
In modern automotive acoustic systems, the horn serves as a crucial warning and safety device, and its performance, stability, and response speed directly impact the safety of the entire vehicle. Within the horn's internal structure, the Tungsten Disc for Car Horn, the core of the striking element, is an indispensable component in the electromagnetic horn's impact vibration system thanks to its extremely high density, excellent mechanical strength, and wear resistance.
We specialize in the production of high-precision tungsten discs, specifically designed for automotive electric horns. These discs offer multiple advantages, including high-temperature resistance, impact resistance, and a long lifespan. They are widely used in horn systems for passenger cars, commercial vehicles, electric vehicles, and other vehicles, and are highly favored by domestic and international automakers and acoustic suppliers.
Tungsten Steel Bar Discs Design Highlights
Double-sided polishing
Powder Metallurgy Tungsten Discs with double‑sided polishing improve contact efficiency and reduce mechanical loss.
Chamfered corners
Tungsten Discs with chamfered corners reduce installation friction and prevent scratches on the speaker's internal components.
Non-magnetic structure (optional)
Tungsten Steel Bar Disc with optional non‑magnetic structure addresses the special electromagnetic interference requirements of some vehicles.
Standardized specifications
Complies with the technical interface standards of multiple major speaker manufacturers, facilitating seamless replacement.
Material Advantages Analysis of Tungsten Discs
High melting point of 3420°C
It resists melting and deformation even in long-term exposure to high-temperature electromagnetic environments for Tungsten Discs.
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High hardness (Mohs hardness approximately 7.5)
It can withstand high-frequency electrical shocks for extended periods for Powder Metallurgy Tungsten Discs.
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High corrosion resistance
It is resistant to corrosion from common corrosive factors in the automotive environment, such as moisture and acidic gases, for Tungsten Steel Bar Discs.
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Excellent electrical conductivity
It exhibits excellent electrical conductivity when driven by current for Flat Tungsten Contact Points.
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Environmentally safe
It is a RoHS/REACH-certified, environmentally friendly metal, compliant with the green procurement policies of global automotive manufacturers for Tungsten Discs.
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Frequently Asked Questions about Flat Tungsten Contact Points
Why is tungsten used in Car Horn Tungsten Contact Rivets?
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Tungsten combines high density, high hardness, and a melting point around 3420°C. These characteristics make it suitable for repeated electrical make-break and mechanical impact conditions in electromagnetic horns, where contact wear and thermal loading can affect service life and acoustic consistency.
What tungsten purity is available for Powder Metallurgy Tungsten Discs?
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The available product specification identifies tungsten purity up to 99.95%. For production purchasing, the required purity should be stated on the drawing or purchase specification, with material documentation used to verify the agreed grade before shipment.
What dimensional tolerance can a Tungsten Steel Bar Disc achieve?
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The product information specifies dimensional tolerance down to ±0.01 mm. The applicable tolerance should be assigned to individual dimensions on the approved engineering drawing because disc diameter, thickness, flatness, and edge geometry may have different functional requirements.
Does the Tungsten Rod Slice require nickel plating?
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A standard pure tungsten disc does not require nickel plating as a basic product configuration. Nickel plating is used on certain composite tungsten contact assemblies for oxidation protection. The correct surface treatment depends on whether the supplied part is a standalone disc or a completed riveted contact.
What quality documents should be requested for production orders of Flat Tungsten Contact Points?
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For automotive procurement, request the approved dimensional drawing, material specification, inspection report, and applicable compliance documentation. The production system supports ISO 9001 and IATF 16949 requirements, while RoHS and REACH compliance documentation is available for environmental purchasing requirements.
contact us
Upgrade your automotive horn switch designs with factory‑direct Tungsten Disc for Car Horn, discs engineered for high‑frequency reliability. Contact our supply chain team today to request volume pricing, material test data, or custom‑machined samples for your production line.
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