Copper Tungsten Electrical Contacts

Electrical contacts are subjected to extreme mechanical and thermal stress during operation. In less than a second, due to the action of the arc, the temperature will rise to several thousand degrees, and only copper-tungsten alloy materials can withstand these high temperatures and distortions.

Copper Tungsten Electrical Contacts generally adopt copper immersion technology for production, mainly by pressing tungsten powder particles into the required shape, then sintering, and then infiltrating into the tungsten skeleton with molten copper, by changing the ratio of metal components.

Copper Tungsten Electrical Contacts have the physical and chemical properties of copper and tungsten, such as high electrical conductivity, high creep resistance, high density, good arc breaking performance, and excellent welding resistance. The Electrical Contacts are the best material for electrical discharge machining (EDM) applications, often found in circuit breakers, signal contactors, and electrical transfer switches in high and medium voltage environments.

1. Low contact resistance and very high conductivity: The copper tungsten electrical contacts take advantage of the high conductivity of copper and the high hardness of tungsten, ensuring low contact resistance is attained when the circuit is turned on or off, thus making them suitable for high current and high frequency switching applications.

2. Fusion welding and arc erosion resistance: Tungsten's high melting point (3410°C) in conjunction with the conductivity of copper can sustain arc ablation while limiting fusion welding. This is applicable in cases such as high-voltage switches, circuit breakers, etc.

3. The need for electrical contacts with diverse mechanical loads and conditions leads to the development of contact materials Copper tungsten electrical contacts resistive to mechanical wear and high voltage eletromotive force discharge. These are suitable to high load and high frequency switching applications, thus extending the service life of the device.

1. Used in electric devices like high and low voltage circuit breakers, contactors, and relays, copper tungsten electrical contact plates prevent electric current from being transmitted during short circuiting or overload situations thereby safeguarding the circuit.

2. Applied in electronic switches, relays and in automated control systems, copper tungsten electrical contact sheets perform well under high speed switching, low loss scenarios and boost the performance of the equipment.

3. Copper tungsten electrical contacts are used in electric welding machines, electric spark processing equipment, etc., and are suitable for high current and high frequency electrical processing scenarios to ensure stable operation of the equipment.

Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.

Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.

Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.

How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Copper Tungsten Electrical Contacts?
A: Depends on quantity, generally, no MOQ limit.

How to pay for it?
A: A bank transfer (T/T) will be acceptable.

What is the delivery time?
A: around 7-20 days which depends on the quantity and production.

What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo

What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.

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