Ultrafine Carbide Cutting Tools Development Direction
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- Category: Tungsten Information
- Published on Thursday, 21 May 2015 17:56
Currently, ultrafine carbide cutting tools development direction has three main aspects: On the one hand, universal applicability grades of ultrafine carbide cutting tools are more widely used, growing versatility hand, ultrafine On the other hand, grades of ultrafine carbide cutting tools are more dedicated and better adapted to the workpiece and cutting conditions, so as to improve cutting efficiency. In addition, ultrafine carbide cutting tools development direction are also reflected in the following aspect:
In recent years, high-end CNC machine tools and basic manufacturing equipment technology major projects of national ultrafine carbide cutting tools has been systematically studied, which provides a series of ultrafine carbide cutting tools substrate material for the domestic high-end CNC machine tools and for ultra fine carbide tool high speed and efficiency of the coating of new varieties, to further promote the process of China's domestic high-end CNC tool.
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Tungsten Carbide Reamer
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- Category: Tungsten Information
- Published on Thursday, 21 May 2015 17:54
Reamer is designed as a rotary cutting tool wildly applied in metalworking. Generally, tungsten carbide reamer is build with common hard material tungsten carbide (solid or tipped).
And the tungsten carbide reamer is recommended to ream for hardened material machinery, because of the increasing forces involved in machining,as the materials are usually very brittle, requiring sightly blunt cutting edges to avoid fracture,although usually they are unaffected by the heat produced by the machining process and may actually benefit from it. The tungsten carbide reamer hardness is up to 92 Rc, which will easily outlast high-speed steels (usually by about 10:1) when reaming steel.
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Ultrafine Grain Carbide Cutting Tools Sintering
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- Category: Tungsten Information
- Published on Thursday, 21 May 2015 17:54
Ultrafine grain carbide cutting tools sintering is an important process for the production of compact powder materials; ultrafine grain carbide cutting tools sintering can make ultrafine grain carbide cutting tools material has certain structure. Ultrafine grained WC - Co based cemented carbide cutting tools sintering an important issue is to control the grain growth and achieve full densification, and therefore should minimize the need for ultrafine grain carbide cutting tools sintering temperature and shorten the sintering time. You can grow the grain by adding inhibitors, changing WC - Co and outside the heating mode and shorten the sintering time, holding time, reduce the time and speed of WC grain growth, thereby producing ultrafine grain carbide cutting tools. Currently, for ultrafine grain WC - Co based cemented carbide sintering process maturity scale production is: vacuum sintering, vacuum sintering and hot isostatic pressing and heat treatment. Ultrafine grain carbide cutting tools sintering process optimization control, the material microstructure and mechanical properties of ultrafine grain carbide cutting tools of the pros and cons play a decisive role.
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Tungsten Carbide Crush Roll Grinding Dressers
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- Category: Tungsten Information
- Published on Thursday, 21 May 2015 17:50
A grinding dresser is a tool used to cultivate the grinding wheel’surface, which help a grinding wheel to get back into its original shape or to make different profiles. Tungsten carbide crush roll is a tungsten carbide wheel.
Its profile is the mirror image of the desired profile of the grinding wheel. It is forced against the grinding wheel, while spinning at the same surface speed as the grinding wheel. Doing so breaks the bond between the abrasive particles on the surface of the wheel, exposing a new surface as particles fall away. One disadvantage is that the wheel profile cannot be adjusted except by replacing the roll with one having a different profile.
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Tungsten Carbide Cutting Tools With Cathodic Arc Deposition Technique
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- Category: Tungsten Information
- Published on Thursday, 21 May 2015 17:46
Cathodic arc deposition (Arc-PVD) is recognized as a physical vapor deposition technique. During the evaporation processes ,an electric arc is adopted to vaporize material from a cathode target. The vaporized material then condenses on a substrate, forming a thin film. The technique can be used to deposit metallic.
Cathodic arc deposition technique is actively used to synthesize extremely hard film to protect the surface of tungsten carbide cutting tools and extend their life significantly. A wide variety of thin hard-film, superhard coatings and nanocomposite coatings can be synthesized by this technology including TiN, TiAlN, CrN, ZrN, AlCrTiN and TiAlSiN.
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Tungsten Carbide Reamer Construction
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- Category: Tungsten Information
- Published on Thursday, 21 May 2015 17:42
A common tungsten carbide reamer construction includes a cylindrical body that consists a set of helical cutting edges along it. Specially,every cutting edge has a slight angle, and below which there ‘s a small undercut. It is recommended that the cutting edges of reamer should have both hardness and toughness, so that ,during the usage, the tool could work functionally under the normal forces . They should only be used to remove small amounts of material. This ensures a long life for the reamer and a superior finish to the hole.
For production machine tools, the shank type is usually one of the following: a standard taper , a straight round shank to be held by a collet, or a straight round shank with a flat for a set screw, to be held by a solid toolholder. For hand tools, the shank end is usually a square drive, intended for use with the same type of wrench used to turn a tap for the cutting of screw threads.
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How Tungsten Alloy Multi-Leaf Collimator Works
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- Category: Tungsten Information
- Published on Wednesday, 20 May 2015 19:04
The tungsten alloy multi-leaf collimator is an important tool for radiation therapy dose delivery. It was originally used as a surrogate for tungsten alloy block field shaping and is now widely used for Intensity Modulated Radiation Therapy. For conformal radiotherapy the tungsten alloy multi-leaf collimator allows conformal shaping of the linear accelerator (LINAC) beam to match the borders of the target tumour. For intensity modulated treatments the tungsten alloy leaves of a multi-leaf collimator can be moved across the field to create Intensity Modulated Radiation Therapy distributions (tungsten alloy multi-leaf collimator's really provide a fluence modulation rather than intensity modulation).
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Tungsten Alloy Multi-Leaf Collimator in Radiotherapy Treatment
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- Category: Tungsten Information
- Published on Wednesday, 20 May 2015 19:02
A tungsten alloy multi-leaf collimator is a device made up of individual tungsten alloy "leaves", that can move independently in and out of the path of a particle beam in order to block it.
tungsten alloy multi-leaf collimators are used on linear accelerators to provide conformal shaping of radiotherapy treatment beams. Specifically, conformal radiotherapy and Intensity Modulated Radiation Therapy (IMRT) can be delivered using tungsten alloy multi-leaf collimator.
The tungsten alloy multi-leaf collimator has improved rapidly since its inception and the first use of leaves to shape structures in 1965 to modern day operation and use. Tungsten alloy multi-leaf collimator's are now widely used and have become an integral part of any radiotherapy department. Tungsten alloy multi-leaf collimators were primarily used for conformal radiotherapy, and have allowed the cost effective implementation of conformal treatment with significant time saving, and also have been adapted for use for IMRT treatments.
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How to Choose α, β, γ Tungsten Alloy Detector
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- Category: Tungsten Information
- Published on Wednesday, 20 May 2015 19:00
There are many different tungsten alloy detectors for different radiation, such as ionization chamber, proportional counter, Geiger counter for α, β tungsten alloy detection, but how to select a suitable tungsten alloy detector for different radiation?
The range and energy of the radiation to be detected: you can't bury a alpha tungsten alloy detection element behind in a sealed, rugged case, because the particles will range out before they get there.
The size of the tungsten alloy detector elements: the size of the readout equipment which may be separate and their arrangement relative each other.
The sensitivity and efficiency needs to different kinds of radiation, to different energies that might be present.
Some of this kit can be very expensive, and you might choose a not-quite-the-best choice if you already have it and the necessary readout gear sitting around the lab from a old experiment. This is the equivalent of a bumper sticker.
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Blue Tungsten Oxide
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- Category: Tungsten Information
- Published on Wednesday, 20 May 2015 18:27
Blue tungsten oxide is used primarily for the production of tungsten metal power and tungsten carbide. The formula of blue tungsten is H0.5WO3. Blue tungsten oxide is finely divided blue-violet crystalline powder and it is produced by rotary calcining ammonium paratungstate at closely controlled temperatures in a reducing atmosphere. And we usually use APT to manufacture it by calcination. Blue tungsten oxide paly an important role in the line from oxide to W and WC powder. The color varies between deep dark blue to blue,faint blue and green blue.
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