Cemented Carbide be Used for Coarse Grades
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- Category: Tungsten Information
- Published on Monday, 23 September 2013 09:04
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In today's competitive Oil & Gas drilling environment, the pursuit of faster, economical and superior wells has conjured a host of technological advances.
However, in the end, it all comes down to the drilling bit. Cemented Carbide is an ideal material for drilling inserts and carbide drill bits due to its high hardness, compressive strength and thermal conductivity. Research and Development within Sandvik Hard Materials has taken these properties and used innovative techniques to improve the toughness and impact resistance, while reducing the risk of thermal effects of the carbide drill bits during drilling.
The variety of material that Sandvik can supply provides coverage for a variety of application needs. In soft rock/heat generation formations, engineers typically select grades that are extra coarse with high binder content. These characteristics result in high fracture toughness and prolonged carbide drill bit life. Medium coarse grades with low binder content are generally used in drilling hard formations. This results in high hardness (better abrasion resistance), but low fracture toughness, ultimately having a higher penetration rate but increased likelihood for fracture.
Sandvik manufactures a large variety of inserts and carbide drill bits used in rotary & percussion rockbits for Oil & Gas and mining industries. Extreme drilling conditions, whether rotary, percussion or downhole, require unique solutions. Sandvik has the technology to supply the customers with inserts and carbide drill bits that perform every time.
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Cemented Carbide be used for Can Tooling
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- Category: Tungsten Information
- Published on Monday, 23 September 2013 08:57
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Material selection, be it different steel and/or carbide grades, plays an important role on tool life. Choosing the correct tool materials for the application, you can optimize performance and life, thus lowering your tooling cost per can. When creating a tooling solution for 2 and 3 piece cans and aerosols, tooling specifications need to be clearly defined. Can manufacturing is a very sophisticated process, consisting of several different components that work together to keep the production line running.
The malfunction of even one of these components will result in the stoppage of production. The unique composition of Cemented Carbide provides stability and high productivity in production, DWI process, forming and stamping operations in the can manufacturing industry, which makes Cemented Carbide the ideal tool material.
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Cemented Carbide be Used for Wear Parts
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- Category: Tungsten Information
- Published on Sunday, 22 September 2013 14:17
- Hits: 1848
Carbide components are improving the productivity of applications in metal-cutting, mining, mineral and civil engineering, agriculture, food processing and textiles, just to name a few.
The Aerospace Industry above all other demands exceptional performance with the highest level of operational reliability. Cemented Carbide is chosen for such demanding applications as bearing parts for helicopters, fuel pumps and hydraulic components in jet engines. Cemented Carbide components are also chosen to resist the wear experienced in many aspects of food processing. Carbide nozzles and homogenizers are used in the dairy and beverage sectors, carbide crusher parts for cocoa production and cutting knives. Another example is recycling, transforming old scrap into secondary raw materials that can be fed back into the manufacturing process. Sandvik Hard Materials provides Cemented Carbide parts for recycling machines. This ensures a long life on components used to crush waste glass, wood, plastic, rubber, paper etc.
Although Wear Parts can be found in a very diverse range of industrial and domestic sectors, they all have one thing in common: the critical need for resistance to impact, corrosion and wear.
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Cemented Carbide be used for Automotive Components
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- Category: Tungsten Information
- Published on Monday, 23 September 2013 08:53
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Cemented Carbide was not commonly perceived as an automotive material. In reality, Cemented Carbide and Cermets offer a wide range of properties making them very well suited for the new challenges of the automotive industry. Carbide components have been developing and supplying solutions for the automotive industry for decades. Cemented Carbide, related Cermets and carbide components provide the automotive industry tailored solutions from carbide tools to a wide variety of automotive applications.
Cemented Carbide is already successfully used in a variety of automotive applications such as fuel pumps, fuel injectors, compressors and valve trains. With pressures commonly reaching 1600 bars and planned to rise shortly to 2000 bars and higher, Cemented Carbide bring many valuable properties to these applications.
Cemented Carbide provides resistance to high temperatures, corrosive environments, high compressive stress, fatigue and many other harsh conditions.
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Microstructure of Cemented Carbide-Co grade
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- Category: Tungsten Information
- Published on Sunday, 22 September 2013 14:12
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This group of Cemented Carbides contains WC and Co only (i.e. two phases) and a few trace elements. These grades are classified according to their cobalt content and WC grain size.
The grades with binder content in the range 10-20% by weight and WC-grain sizes between 1 and 5 μm have high strength and toughness, combined with good wear resistance.
The grades with binder contents in the range 3-15% and grain sizes below 1 μm have high hardness and compressive strength, combined with exceptionally high wear resistance.
Microstructure of γ-phase grade
The Sandvik grade program also includes WC-Co grades which utilize a range of ultra-fine WC grain sizes (< 0.5 μm). With such fine, uniform grain sizes, a unique combination of hardness, wear resistance and toughness can be achieved.
The grades of Cemented Carbides in this group contain WC and Co as the main elements, although small additions or trace levels of other elements are often added to optimize properties. These grades are classified according to their Cobalt content and WC grain size and are often called the "straight grades". They have the widest range of strength and toughness of all the Cemented Carbide types and this is in combination with excellent wear resistance.
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