Copper Alloy Strip for Electrical Component Production

 

1. Product: Copper Alloy Strip, precious metal clad strips, silver alloy strips, copper alloy clad

Type: Single side inlay, dual side inlay, tri-layer cladding strip, overlay cladding strip, simple lay cladding strip, specific shape cladding metal

2. Main materials:

A) Basic material: Cu, SnP Bronze, ZnCu, CuNiSn alloy, Fe, Cu/Fe

		Silver/Silver Alloy				AuAg Alloy		Pd/Pd Alloy
		Ag	AgCu	AgNi	AgMeO	AuAg/AgCu	AuAgCu/AgCu	AgPd
Cu	C1020	√	√	√	√	√	√	√
SnP	C5210	√	√	√	√	√	√	√
	C5191	√	√	√	√	√	√	√
Bronze	C1720	√	√	√	√	√	√	√
ZnCu	C7521	√	√	√	√	√	√	√
	C7701	√	√	√	√	√	√	√
Copper	C2600	√	√	√	√	√	√	√
	C2680	√	√	√	√	√	√	√
	C2801	√	√	√	√	√	√	√
CuNiSn Alloy	MX96	√	√	√	√	√	√	√
	MX215	√	√	√	√	√	√	√

 

Thickness(mm)	Thickness tolerance(mm)		Width tolerance(mm)
	Standard	High precision	Standard	High precision
≥0.03-0.1	±0.004	±0.003	±0.08	±0.05
≥0.1-0.25	±0.005	±0.004
≥0.25-0.5	±0.008	±0.005
≥0.5-0.8	±0.015	±0.006	±0.10	±0.08
≥0.8-1.2	±0.030	±0.007
≥1.5-2	±0.045	±0.008	±0.20	±0.12
Precious metal inlay width	More than 1.5 mm
Precious metal inlay thickness	Less than 40% of the entire compound material thickness

 

3. Characteristics

1), Offer flexibility of material design, being able to produce the electrical contact with high mechanical and electrical contact characteristics.

2), Save precious metal materials with low prices, as the precious metal is only used at electrical contact spots.

3), Precious Clad Metal Material is suitable for continuous automatic manufacturing. It does not need another manufacturing process, such as welding or soldering after its formation. It simplifies the manufacturing process of electrical parts with high productivity and low cost and raises the assembly precision credibility of the electrical component.

4), Precious Clad Metal is used for all sorts of electrical component production, such as micro motors, electrical brushes, commutators, jiggle plug sockets, relays, connectors, tuners, etc.

 

4. Product characteristics: 

(1) Silver, Fine-grain Silver Series: High electrical conductivity, thermal conductivity, and chemical stability. Easy to produce and good tensile strength. Low contact resistance and temperature in the installation test.

(2) Silver Nickel Alloy Series: Good performance in arc erosion resistance and high resistance against welding. Good conductivity and thermal conductivity.

(3) Silver Oxidation Alloy Series: Including AgCdO, AgSnO2, and AgSnO2In2O3

(4)Silver Cadmium Oxide Series: Good performance in arc erosion and welding resistance. Long electric life. In some specific fields, so far, no other material can be replaced.

(5)Silver Copper Alloy Series: Silver copper alloy have better performance in resistance against welding than silver. Silver has a better performance in arc erosion resistance.

(6)The Silver Oxide Tin, Silver Oxide Tin Oxide Indium Series: Environmental friendly contact materials without cadmium. Arc Erosion and Welding Resistance. Long electric life.

 

5. Production Equipment

Precious Clad Metal production line has Germany Hi-precision Roller Machine; Hi-precision Vertical Cutting Machine; Slotting Machine; Ionic Absorption Test System AAS; Light Processor & Metallographic Microscope; Digital Light Processor; Strength Tester; Hardness Tester and other 220 productions and testing equipment. As per the client’s requirement, we can make different foils with annual output of 300 tons.

 

6. Why chose LONGSUN?

(1) Experience

Longsun group was founded in 1986, with 30 years of experience in the contact point field, and we are one of the leading manufacturers of the electrical alloy product industry in china.

(2) Scale

Our Group owns Shanghai Longsun Alloy Co., Ltd, Zhejiang Longsun Investment Co., Ltd. and Wenzhou Longsun Electrical Alloy Co., Ltd., Zhejiang Longsun Electronic Technology Co., Ltd., Zhejiang Urban Construction Investment Co., Ltd., with a total registered capital of 370 million yuan, 2013 annual sales of 1.4 billion yuan, the total assets of 1.2 billion yuan.

(3) Customers

Our products are widely used in high and low voltage electrical equipment, military, aerospace, electronics, telecommunications, home appliances, solar panels, and other areas, the Group mainly serves Fortune 500 companies, Schneider, ABB, LG, Siemens, Omron, British Invensys, GE, Tyco, Eaton, Emerson, Chint, West Germany, the people, Tengen, Jinlong Electrical, Xiamen Hongfa other world-renowned Electric Company

(4) Customization

We provide customized service according to the customer’s requirements. At the same time, is also committed to helping customers improve the performance of the product, providing customers with solutions, to follow the common growth of customers.

(5) Production management

Production management company primarily used the causal diagram, histograms, control charts, 5WHY other methods of quality problems in the production process of a full and thorough analysis, to find the root cause and to develop effective countermeasures.

(6) Quality management

Our company set up since 2001 quality management system and achieved certification so far, has formed a very sound quality management system. In early 2014, we establish an environmental management system and occupational health and safety management system, and in May 2014 passed the certification.

(7) Research and development

In recent years, we have obtained nearly 30 new product patents of invention and utility, as the launch of these products, brought a high value to electrical industry users and promoted the development of the whole industry, contributing to China’s national industry.

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FAQ about Longsun electrical contacts.

 

1. Can you help customers with designing electrical contacts?

We can help customers design the best electrical contacts by using different processing procedures to achieve good function and save costs according to the application, according to many years of experience in electrical contacts manufacturing.

 

2. Can you help us to choose suitable contact material?

We can recommend the most suitable contact material to customers according to the electrical contacts application, based on a rich fund of knowledge of kinds of contact material.

 

3. What kind of electrical contact material you can provide?

We can provide Pure Ag ,AgSnO2 , AgSnO2ln2O3 , AgCdO , AgCuO10 , AgZnO , AgNi , AgCe , AgC , AgWC , AgW , CuW Etc. contact material.

 

4. Can you provide samples for the test?

As Wenzhou Longsun Electrical Alloy Co., Ltd. has manufactured electrical contacts for many years, so they have many different types in stock, if the electrical contact you need is similar to the size in stock, they can send them to you within one day, if you can not use the similar size, they can make samples and send them within 10-15 days.

 

5. Can you make some special electrical contacts such as a special shape or use special contact material?

We can provide some electrical contacts made with special materials, such as CCW contact material, AgWC contact material, AgW contact material, AgCu contact material, CuAg, contact material, AuAgCu contact material, AgCuNi contact material…

We also provide special shape electrical contacts according to customers’ design.

 

6. How do you control quality? Can you give a simple description?

we provide tri-metal Silver Electrical Contacts samples to customers for checking before production; we will not produce until the sample is approved; we will do the product inspection randomly in the process of production to detect the problem in time, we also will select random products for customers to checking according to customers’ requirements after the completion of the production before shipping.

For the products with high assembly requirements, we will ask customers to provide the assembly parts, to ensure that the products can be assembled ok before shipment.

 

7. Can you report during production?

During production, we mainly Provide valuable pictures or videos to our customers, we provide clear pictures of silver tri-metal contact rivets samples to customers for checking before the shipment; provide pictures of products and cross-section inspection report which is in the process of production; provide detailed packaging pictures showing the quantity and packaging of each product clearly after the completion of production.

8. How do you arrange freight?

For samples, we usually use Courier, such as UPS, FedEx, DHL, TNT, and EMS. If gross weight is below 100kg, we usually deliver them by air, for 100kg or above, we usually deliver by ship. If our customer is in urgent needs to get the goods, we can arrange to send them by air.

 

9. How about communication?

Our sales department communicates with customers by using a variety of Apps (WhatsApp, Skype, Trademanager, Wechat, etc.), telephone, and e-mail, and adjusts the working hours according to the customer time difference to keep in touch with customers and answer customer inquiries at the earliest time possible. Customers can use PAYPAL, western union, and other online payment platforms to pay a small amount of sample fee to shorten the sample production time.