Products Description

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.

Five Core Selling Points Build Product Competitive Advantages

High-Density Material, Strong Instantaneous Impact Force	Using high-purity tungsten-based alloy (density up to 19.2g/cm³), its high density enables it to generate stronger impact kinetic energy when the speaker is powered on. Produces a clearer, more penetrating speaker sound, effectively improving horn performance. Compared to iron- and copper-based alternatives, Tungsten Discs are more stable in terms of impact force and rebound speed.
Excellent Wear Resistance, Longer Lifespan	Tungsten possesses extremely high hardness and wear resistance, and can withstand hundreds of thousands of mechanical impacts without deformation. The high surface hardness makes it less susceptible to scratches and fatigue cracks, making it suitable for high-frequency use. Effectively reduces speaker maintenance frequency and extends the lifespan of the entire electro-acoustic module.
Extremely Low Thermal Expansion Coefficient, Strong Thermal Stability	Powder Petallurgy Tungsten Discs generate localized high temperatures during electromagnetic impact, and ordinary materials are susceptible to failure due to thermal expansion and contraction. Tungsten, however, has an extremely low thermal expansion coefficient, maintaining dimensional stability and structural integrity, preventing fluctuations in horn performance due to temperature rise. It is particularly suitable for high-temperature and tropical environments, or for prolonged, continuous horn honking.
Precision Machining, High Dimensional Consistency	CNC precision machining combined with multiple grinding processes controls thickness and flatness, ensuring uniform thickness and smooth edges for each Tungsten Steel Bar Discs. Strict tolerances, down to ±0.01mm, ensure precise fit with the horn's electromagnetic system. Customizable specifications are available to meet the needs of various vehicle models and horn configurations.
Stable bulk delivery capabilities to meet global procurement needs	We have fully automated tungsten sheet stamping lines and high-temperature sintering equipment, capable of producing over one million sheets daily. We adhere to ISO9001 and IATF16949 quality management systems, ensuring consistent performance in every batch of Flat Tungsten Contact Points. We maintain regular inventory, support small-batch proofing and large-volume rapid delivery, and flexibly respond to international procurement cycles.

Manufacturing Technology and Application of Tungsten Disc for Car Horn

Product Design Highlights

Double-sided polishing

Improves contact efficiency and reduces mechanical loss;

Chamfered corners

Reduces installation friction and prevents scratches on the speaker's internal components;

Non-magnetic structure (optional)

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.

Tungsten Steel Bar Discs

Material Advantages Analysis

High melting point of 3420°C

It resists melting and deformation even in long-term exposure to high-temperature electromagnetic environments for Tungsten Discs.

High hardness (Mohs hardness approximately 7.5)

It can withstand high-frequency electrical shocks for extended periods for Powder Petallurgy Tungsten Discs.

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.

Excellent electrical conductivity

It exhibits excellent electrical conductivity when driven by current for Flat Tungsten Contact Points.

Environmentally safe

It is a RoHS/REACH-certified, environmentally friendly metal, compliant with the green procurement policies of global automotive manufacturers for Tungsten Discs.

9999 Pure Tungsten Material for Tungsten Disc for Car Horn