product and service offering - doduco holding gmbh by the company founder dr. eugen dürrwächter....

Our C o m p l e t e Product andService Offering

WE KNOW HOW

RANGE OF PRODUCTS AND SERVICES

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and Contact Parts

Contact Rivets Stamping Technology Electro-mechanical ComponentsSurface and Coating TechnologyPrecious Metal recycling and Silver Powders

Contact Materials, Semi-finished Products

Your Partner for Premium Contact Technology

DODUCO is a global leader when it comes to electrical contacts. Since over 90 years we have been active in precious metal processing.Our broad experience and know-how enables us to be a reliable partner to our customers as a supplier of products and services – in all stages of product deve-lopment and planning, all the way to manufacturing and recycling.

DODUCO serves the electrical, electro-nics, automotive and many other indus-tries through its business units for pre-cious metal contact materials, stamping technology, contact parts, for high and medium voltage, electromechanical components, surface coatings and precious metal recycling.

By combining these different technolo-gies we can create optimal technical and economical solutions. Our in-house application and testing laboratories with state-of-the-art equipment allows us to conduct fundamental research, optimize products and processes and find inno-vative solutions. With production

facilities in Germany (Pforzheim, Sinsheim), Spain (Madrid) and in China (Tianjin) we are close to development and manufacturing centers of leading customer companies. Our global sales organization is ready to serve as a contact partner in most countries around the world.

Market driven dynamics and customer oriented services the business principles we live by.The basis of this philosophy was esta-blished by the company founder Dr. Eugen Dürrwächter. In 1922 he started DODUCO as a precious metal refining company for gold, silver and platinum materials for the reclamation and re-use in jewelry making in Pforzheim, the jewelry center of Germany. The deve-lopment of improved processing allowed the jewelry industry to introduce many new products to their market.

Soon after Dr. Dürrwächter realized that the growing electrical industry provided a new market opportunity for related materials. DODUCO engaged very early

in the manufacturing of precious metal electrical contacts and their alloys and in 1932 established a dedicated factory for contact manufacturing. By investing in new technologies and based on the innovation driven spirit of its employees DODUCO developed over the years into a technology company and a world leader in electrical contact manufac-turing. Today DODUCO is an internatio-nally operating company with approxi-mately 1.300 employees worldwide.

Optimizing existing and developing new, innovative and environmentally friendly products, processes and technologies ensures the long term growth objectives of the company – always with advan-tages to our customers in mind and supported by the exceptional know-ledge and motivation of our employees.

To our customers the name DODUCO is a trademark for quality and at the same time synonymous for technological leadership and customer service in all areas of contact manufacturing and sales – with a unique depth of processing and product technologies.

Product Development

Product Delivery

New products offer new opportu-nities for our customers.To quickly respond to the many market challenges you should from the start take advantage of the technological competence of DODUCO.

As a true cooperation partner we actively incorporate our knowledge and experience into the improvement and new development of customer products.

We can apply our unique and compre-hensive depth of manufacturing: fromcontact materials manufacturing by powder and melt metallurgy all the way to electromechanical components, from precision stamping through contact parts and surface coatings to the complete range of precious metal recycling. Every single step of production can be

employed in the manufacturing of simple contact parts up to seamless solutions to customer project requirements.

Our application and process engineers and development staff are available in the early design stage with concept developments for meeting the require-ments of the new product regarding resource utilization and cost-benefit profiles. Many years of experience are employed to evaluate design principles, the electrical and mechanical require-ments and to select the most suitable contact materials. We also consider the influences of applied manufacturing technologies and the environmental effects on the design and materials.

Early on technical, economical and logistics aspects are considered.

DODUCO employees can assume the role of project managers or can pragma-tically cooperate with the customer's experts.

Our project management serves as the link between the customer and manufac-turing, product development, suppliers, the laboratory services involved and quality assurance. It coordinates tech-nical alternatives and transparently monitors and controls time tables, costs and additional measures as required. Focal points are always the customer's product, optimal quality and the shortest possible time-to-market.

At DODUCO development cooperation always means responsible, open and target oriented cooperation with our partners.

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Results-oriented

Development Cooperation

DODUCO is your expert in electrical contacts For over 80 years our world has cen-tered on precious metals and the con-duction of electrical energy. We conduct basic research, development in the areas of new materials manufacturing and processing technologies involved in the production of electrical contacts. We disseminate our expertise through publications, presentations at technical seminars and conferences and through application engineering. We also parti-cipate in cooperative development partnerships with various institutions.

DODUCO develops new electrical contactsThe requirements on electrical contacts are very versatile. Current, voltage, load

characteristics, geometry, kinetics and kinematics are different for every appli-cation. They pose a new challenge with every new project. DODUCO has a very broad spectrum of contact materials and processing technologies. These are constantly improved upon in an applica-tion based and project oriented way.

DODUCO offers comprehensive technical application engineering The most suitable selection of contact materials requires expert knowledge. Our application engineers are specialists in their respective fields. They contribute to the project and give successful advice during all project phases. They are supported in their efforts by our modern equipped application and test laboratories.

DODUCO has the full depth of manufacturing technologiesWe exemplify a unique and comprehen-sive depth of manufacturing: from precious metal refining through semi-finished materials manufacturing by powder and melt metallurgy all the way to precious metal contacts. Stamping technology, plastic molding, electro-plating and the whole range of welding and rivet staking techniques – our know-how is at your disposal. Every level of manufacturing depth, from a simple contact part up to seamless solutions for complex components is available.

C o n tact Materials, Semi-Finished Products, Contact Parts for

Power Engineering and I nformation TechnologyCompetency in Electrical ContactsThe properties of the contact material are the deciding factors for the reliable function of the contact spots in any electromechanical device. From a broad range of contact materials we develop and manufacture semi-finished products and contact parts, which are optimized towards the application in electromecha-nical switching devices and electronic components. Using the most environ-mentally friendly composite materials and alloys, such as for example Silver-Tin Oxide, is of increasing importance.

Contact Materials for Information Technology

Favorable electrical properties for a broad application range.

Combines the best electrical and thermal conductivity with very good chemical stability.

Better arc erosion resistance than Fine Silver.

Strongly increased mechanical proper-ties with decreased chemical stability, compared to ARGODUR Spezial.

In precipitation hardened condition suitable as temperature stable spring and contact material for higher power relays.

Silver and Silver Alloys (Ag, AgCu):

Fine Silver (Ag):

ARGODUR Spezial (Fine Grain Silver AgNi 0.15):

ARGODUR 27 (AgCuNi) and Hard Silver (AgCu):

ARGODUR 32 (AgMgNi):

Silver-Palladium (AgPd):

Gold-, Platinum- and Palladium-Alloys:

Gold-Cobalt (AuCo) and Palladium-Copper (PdCu):

Gold-Nickel (AuNi) and Gold-Silver-Nickel (AuAgNi):

Sulfur resistant contacts.

For highest requirements on corrosion resistance.

With special microstructure, resistant against material transfer in DC circuits.

Significantly improved mechanical strength compared to Gold. For high reliability contacts for switching low loads.

Contact parts for low voltage power engineering


Semi-finished MaterialsWire, strip and profiles from precious metals, their alloys and composite materials.

Solid, also electroplated with Silver or Gold

Electroplated with Silver or Gold. Totally clad on one or both sides (Overlay). Clad as stripe on strip or at edge with precious metal or Aluminum (Inlay, Edgelay) – also known as Contact-Bimetals.Selectively electroplated with Silver, Gold, Palladium, TinTinned by hot-dipping in stripe form or at edges

Solid, two- or multiple layers as miniature profile.Brazed onto substrate strip material as Toplay profile. Seamwelded onto thin spring-hard carrier strips as FDR profile.

With high electrical conductivity

Multi-layer composite materials with good spring properties and high electri-cal conductivity

Contact Materials for Power Engineering

For auxiliary current switches, relays and circuit breakers (with Silver-Graphite as mating contact)

Manufactured by powder metallurgy (AgSnO with and without additives) or 2

internally oxidized (with In O ). 2 3

Environmentally friendly and arc erosion resistant contacts for relays, contactors and circuit breakers.

Wire

Strip

Profiles

Silver Bronze

CONDUFLEX High Conductivity Spring Materials

SINIDUR, Silver-Nickel (Ag/Ni):

SISTADOX, Silver-Tin Oxide (Ag/SnO ):2

DODURIT ZnO, Silver-Zinc Oxide (Ag/ZnO):

DODURIT CdO, Silver-Cadmium Oxide (Ag/CdO):

GRAPHOR, Silver-Graphite (Ag/C):

SIWODUR, Silver-Tungsten and Silver-Tungsten Carbide (Ag/W and Ag/WC):

SILMODUR, Silver-Molybdenum (Ag/Mo):

CUWODUR, Tungsten-Copper (W/Cu):

VAKURIT, Low gas content materials based on Copper-Chromium and Tungsten-Copper (Cu/Cr and W/Cu):

For current limiting powder switches, motor protectors and for electrical wiring applications.

Internally oxidized or made by powder metallurgy. High load contacts in low voltage switching devices.

For switching contacts with extremely high resistance to contact welding in circuit breakers and for sliding contacts.

For circuit breakers and protective power switches.

As highly arc erosion resistant contacts in circuit breakers.

Extremely arc erosion resistant for load switches and circuit breakers in medium and high voltage switchgear.

For vacuum switches and circuit breakers.

Contact Parts for Power Engineering

Solid from Silver, Silver alloys and composite materials.

With contact layers of Silver, Silver alloys, Silver-Metal Oxide or Silver-Nickel on a copper base.

With bottom layer suitable for brazing or welding, also with brazing alloy coated underside.

With contact material surface layer and weldable material on bottom.

Welded contact assemblies.

With Tungsten-Copper tips.

With Tungsten-Copper layers on Copper or Copper-Chromium-Zirconium carriers.

From Copper-Chromium-Zirconium for current carrying main contacts.

From low gas content materials based on Tungsten-Copper or Copper-Chromium for vacuum switches.

Contact Rivets

Composite Bi- or Tri-metal Rivets

Contact Tips

Weld Buttons

Rivet-staked, Brazed, Welded or Clad Contact Parts

FULMIDUR

Contact Pins and Arc Tip Assemblies

Contact Tulips and Tubes

Spring-loaded Contact Tulips

Contact Discs, Rings and Formed Parts

CUWODUR microstructure

Refractory contacts for high voltage power enginieering

SISTADOX 12 WPD with braze alloy backing

Equipment for blister packaging of small contact parts


The Full Production Competency in Stamping Technology

DODUCO manufactures precision stamped parts incorporating electrical contact functions. These can be welded, brazed, riveted, coated by electro-plating, clad or mechanically mounted and assembled. Depending on our customer's requirements we supply these products as individual parts, pre-stamped strips, in comb segments or blister packaged.

Welded Stamped PartsThe contacts are attached by resistance welding from wire, profiles or by feeding of single contacts. Depending on the application, Gold, Silver or Palladium based contact materials are used.

Riveted Stamped Parts Utilizing composite Bi- or Tri-metal rivets manufactured at our facility in Spain

allows to keep the usage of precious metal at the absolute minimum required for reliable switching functions.During wire-staking – the forming of rivet shaped contacts in a progressive die – the contact rivet is produced without additional costs and allows significantly higher production speeds. Stamped Parts from Semi-finished Contact MaterialsStamped contact parts made from semi-finished strip material are economically manufactured endlessly and at high production rates.The contact materials made in our mill operations are based on Gold, Palladium and Silver. Aluminum is used as a bondable surface layer.

Subassembled Stamped PartsIn a progressive die the attachment of stamping frames to each other is performed by forming and riveting or by welding. This way the different properties of the individual components can be combined in the assembled stamped part. Such as, for example, high electri-cal conductivity with exceptional spring properties.

Added Value for Our CustomersBy linking the above technologies and adding multiple form tapping devices into a progressive die, we can offer to our customers the most economical solutions on the highest level.

Progressive die with assembling of springs

Comprehensive tool building for all important production steps


E le ctro-mechanical

Components

Over-molded components

Synergy of Material and FunctionIn Europe DODUCO develops and manufactures electromechanical com-ponents of varying complexity; if reques-ted, even electronic components can be incorporated, greatly expanding their functionality range. Combining plastics, metal parts and contact surface coa-tings leads to a complete solution which reduces for our customers the need for additional interfaces and produces signi-ficant cost savings. In order to accom-plish these goals we get involved in the early stages of development and design.

Hybrid frames for application in power electronics and automotive contact systems and management of control functions

Assembled components for hybrid applications and automotive mirror memory setting

Assembly Technology

Hybrid Housings

Stamped, plastic molded and discrete electronic components are assembled to components with new extended functionality.

Metal – Plastic composite components with single or multiple stamped and/or electronic insert parts for the application in electronic circuits.

Reel-to-Reel TechnologyContact systems combined in metal-plastic composites as a solution to customer-specific application requirements.

Products, Processes and Coatings

for the Surface TechnologyThe Unique Service CombinationThe combination of related products and services allows elaborate solutions from one source. DODUCO supplies precious and non precious metal electrolytes for technical and decorative applications and offers job-shop surface coating using all important processes.

Electroplating Solutions for Tech-nical and Decorative Applications

Acidic, neutral and cyanide gold electro-lytes for the deposition of Pure Gold, Hard Gold, Colored Gold and Gold Alloy layers. Electroless Gold baths and galva-no-forming solutions. High speed processes for reel-to-reel plating.

Gold Electrolytes

Platinum Metal Electrolytes

Silver Electrolytes

Non-precious Metal Electrolytes

CONTAMET

Electrolytes for the deposition of Ruthenium, Rhodium, Palladium, Palladium-Nickel and Platinum.

Electrolytes for the deposition of Hard and Pure Silver.

Copper and Nickel electrolytes for technical and decorative applications. Tin and Tin-Lead baths for electrical and electronic surface coatings.White and Yellow Bronze processes for technical and decorative applications.

Electroless Nickel baths for different technical applications.

DODUSTAN

DODUBOND

DOFLUX

Immersen Tin process for the electroless tinning of printed circuit board and other technical applications.

Electr.-Ni/Pd/Au ENIPIG and ENEPIG, Pd/Au EPIG process for surfaces for gold wire bonding.

Flux for hot air leveling with lead-free and lead containing Tin.


Products for the Metal Surface Treatment Cleaning and polishing agents, Etching solutions, Metal strippers, Anti Tarnishings.

Precious Metal Salts and ConcentratesGold salts and Gold complexes, Silver salts, Concentrates for Platinum, Rhodium, Ruthenium- and Palladium electrolytes.

Precious Metal Preparations

For the manufacture of conducting coatings and circuit paths on glass, quartz and ceramics.

For the coating, contacting and bonding of plastics, metals, ceramics and glass.

For electrostatic and high-resistance applications.

Technical Consulting, assistance in

ARGONOR Silver for furnace firing

AUROMAL Silver Conductive Paints, Pastes And Conductive Adhesives

Electrically Conductive Single- and Two-Component Adhesives

GRAPHAROL Conductive Adhesives

Services

manufacturing, analytical analysis testing customer specific application and process development.

For brazing of automatically produced jewelry chains.

Job-shop Parts ElectroplatingPlating with Gold, hard Gold, Silver, hard Silver, Rhodium, Palladium, Palladium-Nickel and Platinum for electrical engineering and electronics, automotive components, aerospace industry, HF technology, chemical industry, mechanics, laser optics, measurement and control and medical technology.

Selective and spot plating of Gold and Silver on combs and single parts.

Internal plating of hollow parts.

Custom electroplating with controlled thicknesses:Silver up to 300 µm, hard Gold up to 30 µm, Fine Gold up to 100 µm.

With Copper, Nickel, Tin, Tin-Lead, Bronze-DODUBRONCE.

Rack- and barrel-plating.

Braze Alloy Powders

Non-precious Metal Surface Coatings

Chemical Electroless Nickel

Printed Circuit Board Plating

Printed Circuit Board Express Service

Chemical precipitation

Electrolytic deposition

Atomization

Flakes

Plating of rigid, rigid-flexible and flexible PCBs up to 610 x 605 mm with Nickel, Tin, Tin-Lead, Silver, Fine Gold, Hard Gold and Electroless Nickel/Gold – DODUCHEM and DODUBOND.Rhodium and Palladium coatings up to 500 x 400 mm and 300 x 400 mm resp.

Coating of conductive circuit paths on ceramic substrates with solderable and bondable (Al, Au wires) surfaces.

At our customer's request we can provide a turn-around time of 24 hours.

Coating of Al, Al alloys and Al composite materials with electroless Ni and electroplated solderable layer.

Silver Powder

fine, agglomerated / wide range of specific surface areas

dendritic / crystalline, densely agglomerated, medium to low specific surface areas

spherical / high tap density, low specific surface areas

Ceramic Substrates

Aluminum coatings

Coating technology for decorative and technical applications Electrolytes and processes for technical surfaces

Vacuum PVD coated parts

Reel-to-Reel Strip Electroplating

With Gold, Silver, Palladium-Nickel, Copper, Nickel, Tin and Tin-Lead.

In addition strips can also be tin coated by hot-tin-dipping.

On one or both sides of the strip material.

With precious metals, precious metal alloys, non-precious metals and alloys.

Specialty coatings such as Titanium/ Titanium Nitride, Chromium, Molybde-num, Tungsten and Aluminum.

Combined coatings of electroplated and PVD layers for high performance applications.

Technical consulting, development of customer specific coating properties, specialty coatings to agreed customer specifications.

Coating of strip, wire or stamped parts reel-to-reel

Full or selective coverage in stripes

PVD (Physical Vapor Deposition) Coatings

Process Combinations

Engineering Services


Materials and Coatings for Electronics

Aluminum clad strip and stamped parts

Coating of AlSiC heat sinks

Molybdenum substrate discs

We Offer More for Power ElectronicsBased on our broad spectrum of materials and material combinations we offer comprehensive solutions for the electronic packaging and connection industry. They include selected materials structures and the deposition of defined coating.

AlSi1-clad copper and copper alloy strips with and without electroplated surfaces, and stamped parts.The connection between the connector and the electronic circuit is achieved by Aluminum wire bonding on AlSi1.

Aluminum-clad Strip And Stamped Parts for Housings in Controls And Power Electronics

Coating of Substrate Materials for Power ElectronicsMolybdenum substrate discs electropla-ted with precious and non-precious metals within close mechanical toleran-ces. Coatings are applied on both sides or selectively as required by the appli-

cation. Electroplated and chemical de-position of Nickel on composite Alumi-num/Silicon Carbide (AlSiC) material for soldering applications. AlSiC is increa-singly used as heat sink material in power electronics.

Precious metal melting Recycling equipment X-Ray-Analytical equipment


Precious Metal Recycling for the World of Tomorrow

New Materials from ScrapOur precious metal refining facility uses efficient and environmentally safe pro-cesses to reclaim the precious metals Gold, Silver, Platinum, Palladium and Rhodium from different manufacturing residues. Precious metals are recovered from the following materials:

Clad strip and stamping scrapAlloying scrapSilver-Tungsten scrapBrazed and assembled contact parts

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Electronics

Electroplating

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Processors and integrated circuitsCeramic substratesPaste coated foil scrapConnectors and switchesPrinted circuit boards

Surface coated metal scrapPrecious metal containing spent electrolytes and rinse waterSaturated resins and filters, electrolytically deposited precious metal powders and sludge

Catalysts

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Automotive exhaust catalystsCatalysts from the chemical industrySilver catalysts

Jewelry alloys, jewelry making and dental alloy scrap

Comprehensive Quality and Environmental Management Benefitting Our Customers

DODUCO is the Right Partner for YouFor the development of a new product it is important to select the right partner who has the experience and resources to help in accomplishing your project objectives. DODUCO employs all key technologies, including contact material manufacturing, precision stamping, elec-tromechanical component assembly, surface coating and precious metal recycling. The necessary stamping and plastic molding dies are also produced in-house. This allows us to offer com-plete seamless solutions from a single source. For each of the manufacturing phases critical quality requirements can be established. This leads to the high quality standard of DODUCO.

DODUCO's quality management system is certified globally according to the DIN EN ISO 9001 standard. Depending on specific market requirements we are also certified for ISO TS 16949.

One of the key aims of our corporate philosophy is to develop technologies that benefit and do not endanger mankind and the environment.Accordingly, all our activities follow the dictates of ecological responsibility in the handling of natural resources and demonstrate environmental awareness. Our environmental management system is certified according to DIN EN ISO 14001.

Highest Quality Standards

Highest Environmental Standards

Our Competencies

Comprehensive application engineering assistance

We conduct electrical power performance and life testing according to DIN VDE 57660/Part 101-104, DIN VDE 57664,DIN VDE 57641.Power limits: 400V/6kA

Bounce characteristicsElectrical life of contact partsTemperature riseMake and break capacityArc movement behaviorChopping current characteristics for vacuum switch contacts

Contact resistance measurementMetallography:Microstructure analysisFailure analysis

Chemical Analysis:X-ray fluorescence (RFA)Atomic absorption spectroscopy (AAS) Gas content analysis

Surface Analysis:Scanning electron microscopy (SEM)Energy and wavelength dispersive X-ray analysis (EDX, WDX)

Concentrating on materials, surface technology, analytical methods, powder metallurgy, wear reducing surface layers (PVD), decorative and functional surface treatments (Electroplating, PVD)

Technical Consulting

Testing of Switching Devices

Material Testing and Surface Analysis

Research and Development Activities

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WE KNOW HOW

DODUCO GmbHIm Altgefäll 1275181 PforzheimGermanyPhone +49 7231 602-0Fax +49 7231 602-398

DODUCO GmbHBreite Seite 174889 SinsheimGermanyPhone +49 7261 409-0Fax +49 7261 409-288

~DODUCO ESPANA, S.L.Manises 128224 Pozuelo de AlarcónSpainPhone +34 91 799-4620Fax +34 91 799-4655

DODUCO CHINA Co. Ltd.11 Xinxing Road, Wuqing development AreaTianjin 301700 PRCPhone +86 22 82939 166Fax +86 22 82939 169

http://www.doduco.netMail: [email protected]

product and service offering - doduco holding gmbh by the company founder dr. eugen dürrwächter....

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