›› T UNGSTEN CARBIDE FROM THE EXPERTS
›› ASPIRATION
Minimizing wear, improving productivity – this is our aim. So there is one essential thing: the efficiency of your production. Standard or custom-made. For large-scale or individual production. Our principle is both our aspiration and our promise:
› WE ARE DEDICATED TO TUNGSTEN CARBIDE.
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WEAR-RESISTANT, PRECISE, COST-EFFICIENT. TUNGSTEN CARBIDE FASCINATES. Tungsten carbide is very special to us: Components made of this material are highly wearresistant, exceptionally durable, and individually applicable. Tungsten carbide components by DURIT stand up to highest requirements. They extend machine service lives and they can boost productivity – sustainably. We as a modern family company have been developing and producing precision tools and engineering components made of tungsten carbide for more than 30 years: from powder to sintering through to the high-precision final product. Standard or custom-made, for large-
EXPERTISE IN TUNGSTEN CARBIDE 10 «» 11 BLANKS
scale or individual production. At DURIT, more than 500 employees, experts, application
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ENGINEERING COMPONENTS
specialists, and engineers are working on improving the efficiency of your production.
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MACHINE COMPONENTS
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CUTTING TOOLS
And they do so with passion.
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BLASTING TECHNOLOGY
Starting with advice via development and design through to reliable production and
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OIL GAS PETROCHEMISTRY
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PROCESS AND FLOW CONTROL TECHNOLOGIES
corresponding service, we are a provider of one-stop solutions for tungsten carbide. Based
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CRUSHING MILLING PELLETIZING RECYCLING
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PROCESSING MIXING EXTRUDING
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POWDER COMPACTING AND TABLETING
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SHEET METAL SHAPING AND PACKAGING TECHNOLOGY
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COLD HEADING AND FORMING TOOLS
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DRAWING TOOLS
in Germany, Portugal, and Brazil, we create stability for all sectors. Worldwide.
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WC
Co
Ni/Cr
TiC/TaC
» E VERYTHING FROM A SINGLE SOURCE
TUNGSTEN CARBIDE? WE KNOW HOW! Mixing and Milling
Drying
Linear pressing
Isostatic pressing
Cemented tungsten carbide is a sintered material mainly consisting of tungsten carbide and a binding agent. The main binder is usually cobalt. If the focus is on creating corrosion
Sintering
resistance, nickel or nickel/chromium is the perfect binding agent. EDM
Pre-sintering
It’s the mix that matters: The binder content and the grain size of the carbides determine the specific tungsten carbide features. A high content advances toughness. A lower binder content increases wear-resistance. The choice of grain size in turn affects hardness. The finer the
Shaping
grain, the harder the material. The coarser the grain, the higher the fracture toughness. The best composition depends on the technical requirement and the respective application.
Grinding and Polishing
HIP Sintering
Due to long-standing experience and the broad expertise of our technicians and engineers, we are able to realize the suitable component in the precisely accurate material composition.
Physical control
At maximum precision. For you!
Blanks
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Final inspection
» BLANKS »
THE COMPOSITION DETERMINES HARDNESS
The finer the grain, the harder the material. The coarser the grain, the higher the fracture toughness.
submicron grain
»
medium grain
coarse grain
OUR AIM: CREATING THE BEST RATIO
hardness in HV 30 submicron grain medium grain coarse grain
2000
SUITABLE FOR YOUR DEMANDS. AS INDIVIDUAL AS YOUR PRODUCTION.
1800 1600 1400 1200
The tungsten carbide experts at DURIT are able to manufacture blanks in complex
from the production of small parts starting at a hole diameter
geometries and components of almost any size. In this respect, the material composition
of 0.5 mm to large components with an outside diameter of
and the degree of hardness are determined by the application purpose. The production in
up to 500 mm. As a provider experienced in developing and
our advanced HIP sintering systems achieves a homogeneous quality level with best
processing special grades of tungsten carbide, we are able to
physical features. Our customers benefit from a unique production and dimension range:
adapt them to your special requirements – in a well-aimed way.
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1000 800 600 0
5
10
15
binder content in %
20
25
30
versatile or highly specific: PRODUCTS Shaped components · Cores · Rings · Plates Dies · Strips · Rods · Cutting blades · EDM blocks · Round
» B LANKS
plates · Nozzles · Guides TYPICAL FIELDS OF APPLICATION Plant and mechanical engineering · Tool, die and mould
TRUE IN FORM AND DIMENSIONS. CONSISTENT IN QUALITY.
making · Shaping, Drawing, and Sizing Tools · and more
CLOSER TO THE FINAL PRODUCT. Blanks by DURIT feature a low grinding excess. The finishing is thus optimized.
P RECISION WORK. We manufacture blanks as well as semi-finished products according to customer drawings – at maximum precision.
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» E NGINEERING COMPONE NTS AND PRECISION TOOLS applications
Shaping · Cutting · Sizing · Guiding
Pressing · Rolling · Blasting · and more
» SUCCESSFUL IN ALL INDUSTRIES AROUND THE WORLD EUROPE
NORTH AMERICA
ASIA
SOUTH AMERICA
AUSTRALIA
MEETING CHALLENGES. EFFECTIVELY ACHIEVING GOALS. Increasing requirements demand a higher performance of
accuracy. And this is what tungsten carbide is able to
tungsten carbide and steel combinations. This reduces costs – for
machines and components. Therefore it is necessary to
realize. DURIT convinces by highest precision, maximum
the identical range of services. Moreover, our experts are able to
work more precisely and more persistently. This means: The
durability, and particularly cost-efficient solutions. In
link tungsten carbide up with different carrier materials by brazing,
materials applied in production must meet the specific re-
addition to components made of solid tungsten carbide, we
gluing, shrink-fitting, pressing, clamping or screwing. For many
quirements related to hardness, strength, and dimensional
also produce compound tools consisting of high-quality
different application purposes and a higher performance.
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AFRICA
» ENGINEERING COMPONENTS IMPROVED SAFETY, HIGHER EFFICIENCY, BETTER RESULTS.
products
Rings · Sleeves · Punches · Guide rollers
Bushings · Dies · Guides · Sockets · Nozzles TYPICAL FIELDS OF APPLICATION General wear protection in many different sectors and industries
CONVINCING IN ALL APPLICATIONS. Durable, long-lasting, and highly precise – that’s real quality by DURIT.
DURIT MAKES THE DIFFERENCE. We create effective tungsten carbide solutions for various application purposes.
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products
Bearing shells · Bearing bushings · Guide
rollers · Conveyor rollers · Drive wheels · Profile rollers TYPICAL FIELDS OF APPLICATION Particularly stressed components in plant and mechanical engineering LOOKING AHEAD WITH TRADITION. We focus on profound know-how, innovative thinking and state-of-the-art technology.
» MACHINE COMPONENTS
RELYING ON COMPETENCE. EXPECTING THE BEST.
PRECISION WITH DRIVE. Machine components with tungsten carbide parts by DURIT meet highest requirements.
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products
Roll shear knives · Rotary slitter knives
Circular knives · Notchers · Shear parts · Rotating blades Knife segments · Cutting strips · Granulating blades Chopping blades · Scoring blades · Cutting knives Perforating blades · Special-purpose knives TYPICAL FIELDS OF APPLICATION Paper and printing industries
CUTTING-EDGE RESULTS. For a permanently high quality of cut, tungsten carbide is the best suited material.
Sheet metal-processing industry · Plastics industry Food industry · Hygiene industry · Glass industry · Wood industry · Tobacco industry · Textile industry
» C UTTING TOOLS
SHARP, CLEAN, PRECISE. THE PERFECT CUT. Maximum edge stability and perfect surface finishing ensure excellent cutting results.
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» B LASTING TECHNOLOGY
STRAIGHT TO THE POINT. MADE FOR TOP PERFORMANCE.
products
Nozzles · Impeller wheel scoops · Linings
Accelerators · Separators · Impact protection · Wearing
RADIATING STRENGTH. Tungsten carbide is much more break-resistant than ceramics and far more wear-resistant than steel or other materials.
plates · Baffles TYPICAL FIELDS OF APPLICATION Surface finishing and cleaning · and more
FOR PERFECT RESULTS. The processing of abrasive media puts high requirements on the quality of tools and components – tungsten carbide meets them.
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›› QUALITY
DURIT Quality creates better results. That is why we attach great importance to our process-oriented quality management. With our products we are constantly pursuing dimensional accuracy, continuity, and value enhancement. Our philosophy and conduct is focused on these aims as well. We thus create added value for our customers:
› WITH FIRST-CLASS TUNGSTEN CARBIDE.
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PRECISION RIGHT FROM THE BEGINNING. WITH SAFETY AND QUALITY. »
REALIZING CLOSE TOLERANCES Due to our broad expertise and our state-of-the-art technologies, we create one-stop solutions made of tungsten carbide. From the powder to the final product, we deploy our experience and our know-how for your special requirements. The top-class result: components, parts, and precision tools that do not only meet your demand for a higher economic efficiency. They exceed it. Our machining processes start even before the sintering. The advantage: blanks by DURIT are closer to the final product. They feature a low grinding excess and they optimize further processing. Right from the beginning. The finishing is effected by means of CNC grinders and EDM systems attaining highest precision. Our processes certified according to DIN ISO 9001:2008 ensure a consistently high product quality. Additionally, we meet the demand for an effective environmental management and a forward-looking energy management system by our certifications according to ISO 14001 and ISO 50001.
The Gaussian distribution is also relevant to the production of tungsten carbide at DURIT. It ensures process reliability and top quality.
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» FLOW CONTROL TECHNO LOGY » COMMON GRADES OF TUNGSTEN CARBIDE grain size (µm)
binder
hardness (HV30)
0.8
Co
1850
GD 08NC
0.8
Ni /Cr3C 2
1700
GD 10
2.5
Co
1600
GD 03F
» C OMMON PVD COATINGS HardSilk
®
DiExtra®
layer thickness (µm)
hardness (HV0,05)
2 – 5
2400 – 3000
2 – 4
1300 –1470
» COMMON THERMAL-SPRAYED SURFACES layer thickness (mm)
SUCCESSFULLY HANDLING EXTREME CONDITIONS. SUSTAINABLY RESISTING WEAR AND CORROSION.
hardness (HV30)
WC/Co
0.3 – 0.5
1000 –1020
Cr3C2/NiCr
0.3 – 0.5
950 –1050
convincing tungsten carbide solutions:
Tungsten carbide has been successfully applied in flow
field of application is characterized by extreme conditions.
In order to resist wear and corrosion, components and parts have to be made of a
control technology for years. Especially when handling
Sand and solids cause enormous wear – not only in
highly durable material specifically adapted to the respective application: tungsten
highly abrasive media in pump, valve, and fittings
downstream, but also in all steps of upstream processes,
carbide. If a particularly high corrosion resistance is required, we offer specific
engineering, for example in oil and gas production. This
those processing operations subsequent to exploration.
tungsten carbide solutions with exactly specified nickel- or nickel/chrome-binders.
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» EXTENDED DURABILITY » MORE EFFICIENT PROCESSES » LOWER MAINTENANCE COSTS » ENHANCED PRODUCTIVITY
products
Valve inserts · Radial sleeves · Pistons
Complex engineering components for extreme fields of application TYPICAL FIELDS OF APPLICATION Drill drives Choke valves · Control valves · Shut-off valves · Processing systems · Onshore · Offshore
» O IL GAS PETROCHEMISTRY
RESISTANT TO WEAR AND CORROSION.
DEMANDING. For fields where protection against corrosion is of major importance, we offer a broad range of tungsten carbide grades with nickel- or nickel/chrome-binders.
MOVING UPWARDS. Tungsten carbide creates a decisive competitive advantage, not only in downstream, but also in upstream processes.
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products
Valve seats · Valve cones · Valve balls
Seal faces · Sleeves · Needles · Pistons · Bushings · Plain bearings · Stationary and Rotary rings · Hubs · Axial rings Impeller wheel shafts TYPICAL FIELDS OF APPLICATION Flow control and shut-off valves · Pumps · Sealing elements
» P ROCESS AND FLOW CONTROL TECHNOLOGIES MADE FOR EXTREME CONDITIONS.
WE TAKE A CLOSER LOOK. The fields of high extremes and close tolerances are a special focus of our tungsten carbide experts.
KEEPING UP THE FLOW. In valve and pump as well as in general flow control technologies, the use of tungsten carbide creates a decisive competitive advantage.
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» CRUSHING MILLING PE LL ETIZING RECYCLING » RECYCLING – GROWTH MARKET OF THE FUTURE Positive recycling rate worldwide
Recycling creates prospects
Globally growing share of secondary raw material Sustainability becomes an economic factor
ABRASION-RESISTANT, IMPACT-RESISTANT, BREAK-RESISTANT. SIMPLY UNBEATABLE WHEN THINGS GET TOUGH. Crushing tough products or materials puts extreme
That is why tungsten carbide becomes more and more important in the growing recycling industry as well as in the
demands on all applied tools and components. In this
field of industrial processing of abrasive media. Particularly suitable for processes like milling or crushing, tungsten
field, tungsten carbide also features a much higher
carbide decisively contributes to a higher productivity – in more and more companies. On that score, the experts at
break resistance than ceramics and a far higher wear-
DURIT develop and produce long-lasting wear parts. Carbide-faced or made of solid tungsten carbide, depending
and pressure-resistance than steel or other materials.
on the particular requirements.
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products Milling cups · Milling rings · Milling stones Milling pins · Milling disks · Milling cones · Impact strips Pestles · Breaker rollers · Breaker jaws and plates · Sieve rings · Linings · Pins · Blade strips · Strippers · Perforated plates TYPICAL FIELDS OF APPLICATION Pin mills Laboratory mills · Cone mills · Hammer mills · Shredders Pelletizers · Jaw crushers · Impact mills · Roller crushers
» C RUSHING MILLING PELLETIZING RECYCLING TOUGH STUFF. FOR TOUGH APPLICATIONS.
FOCUSED ON CREATING VALUE. Especially in those sectors where secondary or natural materials are processed, the durability of tungsten carbide products is highly appreciated.
FORWARD-THINKING. Economic efficiency, ultimate technology: The wear experts at DURIT realize long-term solutions.
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» PROCESSING MIXING EXT RUDING COMPACTING » T UNGSTEN CARBIDE PERFORMS BETTER Tungsten carbide inhibits wear of screws, cylinders, linings or pressing moulds. The principle of extrusion requires an extremely resistant material: Usually, solid to viscous masses are permanently pressed out of shaping apertures under high pressure.
KEEPING UP THE PRESSURE. PRESS OPERATIONS WITH ENDURANCE. In chemical, pharmaceutical, and ceramic industries, powder compacting and
In this regard, the experts at DURIT offer several solutions: Carbide-faced pressing tools and linings immediately
tableting are of great importance. Large-batch production and the processing of
create appreciable added value. Perfectly adapted grades of tungsten carbide and a purposeful design of tools,
abrasive materials in this sector require highly durable and particularly long-
pressing dies, and moulds can lead to significantly improved service lives: Tungsten carbide by DURIT can
lasting tools and components.
realize a longer service life – up to 50-fold.
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products
Extruder screws · Augers · Mixer
paddles · Linings · Sleeves · Perforated and Multi-hole plates · Screw segments · Shaping rolls · Slippers · Dies TYPICAL FIELDS OF APPLICATION Technical ceramics Paints and coatings · Concrete industry for roof tiles Food industry · Composites · and more
» P ROCESSING MIXING EXTRUDING
PERFORMING BETTER. Carbide-faced or made of solid tungsten carbide – our development and production is perfectly adapted to customer requirements and application purposes.
SAFE PROCESSES. CONSISTENT QUALITY.
SHOWING STRENGTH. Tungsten carbide is much more resistant when it comes to processing, mixing, and extruding high-wear solids.
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products
Tableting tools · Dies · Punches · Punch
inserts · Centering pins · Arbors · Bushings · Carbidefaced pressing moulds · Linings for pressing moulds Filling and Feed table plates • High-pressure tools TYPICAL FIELDS OF APPLICATION Refractory industry Pharmaceutical industry · Chemical industry · Sintered metal production · Magnet production · Dental technology Industrial and technical tableting
» P OWDER COMPACTING AND TABLETING PRESSURE-RESISTANT. DURABLE. DIMENSIONALLY STABLE.
OUTSTANDING. Tungsten carbide tools create huge advantages in the general powder-processing indus try: Service lives are enhanced up to 50 times.
PERFECTLY IN SHAPE. We realize single or multiple tools in almost all geometries – exactly adapted to your requirements.
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›› FASCINATION
Extreme challenges – first-class results: We develop perfect solutions from the powder to the final product. In this regard, we realize close tolerances and excellent surface qualities. High-tech coatings additionally minimize wear. With passion and state-of-the-art technologies we develop and produce
› ALL ABOUT TUNGSTEN CARBIDE.
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» FORMING PUNCHING DRA WING »
OATINGS FOR ALL INDUSTRIES C AND APPLICATIONS
CVD PVD
Coating
PERMANENTLY IN GOOD SHAPE. EVEN UNDER DIFFICULT CONDITIONS. International competitive pressure and more effective production processes require high-performance tools. That is
Additionally, excellent surfaces are required in all processing steps.
why DURIT’s know-how is becoming increasingly important in this sector. Our tungsten carbide solutions feature a
Due to our high-quality tungsten carbide and our state-of-the-art
perfect material composition and a high dimensional and edge stability. They decisively optimize the production
technical coatings, DURIT enhances the durability of tools – exactly
chain and reduce maintenance costs.
conforming to customer specifications.
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Application
HardTiL
Forming (stainless steel) and machining tools (Al)
DiExtra
Forming and metal cutting tools (non-ferrous metals)
DiaPlus ®
Injection moulding and machining tools (Al)
®
®
HardSilk ®
Injection moulds, Forming and machining tools
UltraImpact
Forming and punching tools
Coating
Application
TiC/TiN
Forming tools
Diamond
Tungsten carbide machining tools (dry machining, GRP)
®
products Cutting dies · Punches · Hold-down rings Centre blocks · Drawing dies · Flanging rollers · Button inserts · Sizing punches · Slitter knives · Necking rings Strippers · Seaming segments · Deep-drawing dies and punches · Flanging punches · Wall-ironing dies · Blank holders TYPICAL FIELDS OF APPLICATION Sheet metal containers · Can and closures production · Punching and shaping technologies
» S HEET METAL SHAPING AND PACKAGING TECHNOLOGY CUTTING-EDGE QUALITY SCORES BETTER.
PRECISELY SHAPED. In addition to high-quality standard products, DURIT primarily realizes high-precision tools perfectly adapted to the respective demands.
PERFECT RESULT. In addition to components made of solid tungsten carbide, we also produce compound tools consisting of a combination of tungsten carbide and steel.
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» COLD HEADING AND FORMING TOOLS
CUSTOMER FOCUS. Together with our customers we develop individual tool constructions with perfectly adapted carbide grades.
PERFECTLY FITTED. SPECIFICALLY OPTIMIZED.
products Cut-off blades and bushings · Reduce dies First and second headers · Extrusion dies · Punches Head press dies · Hexagonal and segmented tools Clamping and cutting jaws · Straightening rollers · Wire infeed rollers · Winding mandrels · Chocks · Wire guides Wire rolls TYPICAL FIELDS OF APPLICATION Production of screws, bolts, and rivets · Roller bearing industry Production of chains and springs · Automotive and aeronautical industries ONE-STOP SERVICE. Sintering, grinding, EDM, and polishing in perfection.
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products
Drawing dies · Nibs · Plugs · Rotating
mandrels · Drawing mandrels · Drawing jaws · Straightening tools · Infeed tools · Peeling inserts for welded seams Profile tools · Sizing rolls · Flat rollers · Profile rollers Guides · Expanding plugs TYPICAL FIELDS OF APPLICATION Tube and bar drawing · Cold rolling technology as well as processing industries
» D RAWING TOOLS
DRAWING ON EXPERIENCE.
HIGH-PERFORMANCE DRAWING. Our portfolio includes all applications related to tube, bar, and profile drawing.
AGAINST FRICTION AND ADHESION. DURIT realizes close tolerances and excellent surface qualities – for optimized high-end drawing operations.
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›› FUTURE Curious about new experiences, we want to understand requirements, recognize concepts, and find better solutions – for all sectors. That is why we know what is important and what will be important. Combining experience, expertise, and an active hands-on mentality, we pursue the goal to create sustainable customer relationships.
› PERSPECTIVES MADE OF TUNGSTEN CARBIDE.
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REMAINING TRUE TO OURSELVES. CREATING PERSPECTIVES. »P OWDER INJECTION MOULDING
» T UNGSTEN
CARBIDE
»P RECISION PARTS MADE OF STEEL
»T OGETHER AGAINST WEAR »T HERMAL SPRAY COATING
DURIT initiated an international network of experienced production companies, specialized
»C AST IRON AND CAST STEEL
sales experts, and scientific institutions. The advantage for our customers results from the bundling of expertise, which directly affects the efficiency of their production.
durit represents:
» UNIQUE QUALITY » EXTENDED SERVICE LIFE » INCREASED PRODUCTIVITY » APPRECIABLE COST REDUCTION
»CVD COATING »P VD COATING
Our common core business is wear protection. Our customers benefit from the synergies created by the bundling of expertise.
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›› RESPONSIBILITY Our economic and ecological concept, our certified production processes and our close cooperation with scientific institutions create security and trust. With experience, know-how, and a profound understanding of the sector we represent:
› EXPERTISE IN TUNGSTEN CARBIDE.
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YESTERDAY, TODAY, TOMORROW. INCREASED EFFICIENCY FOR YOUR PRODUCTION.
We have always been focused on partnership, appreciation, and demands. Together with our customers we are ambitiously striving for efficiency and a higher profitability of their production. The following technical specifications will give you an overview on our portfolio and our range of services. If you have any questions or need individual advice, please contact us. Our entire team is always available with help and advice on tungsten carbide. DURIT: We are dedicated to tungsten carbide.
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DURIT HARTMETALL GMBH LINDERHAUSER STRASSE 139 42279 WUPPERTAL GERMANY T +49 202 55 109 0 F +49 202 55 109 25
[email protected] » DURIT.DE
