LED (full name: Light-Emitting Diode) is a light emitting semiconductor
electronic component.
- Types of Operation: Revolving turntables and rotating turntables.
- Type of Positioning: Orthogonal and upside-down.
- Orthogonal turntables can be divided into two-stand and straight-stand turntables; or they can be customized.
- Upside-down types are divided into single-layer and double-layer turntables.
- Types of Assemblies: One-piece, three-piece, or four-piece models.
- Types of Materials: SUS304 or titanium turntables.
Tungsten Carbide/Tungsten Steel/Tungsten Carbide
Tungsten carbide is commonly known as tungsten steel; for brevity, it is often simply called “carbide” (in fact, “carbide” is a collective name of all carbonized materials).
Moreover, besides carbon and wolfram, materials like cobalt and other types of alloy are added to increase mechanical functions. As the hardness of tungsten steel is high, it is often considered a material for chopping and slicing tools; high-hardness arms or cores of armor-piercing shots, and sports equipment components requiring high hardness, or the balls for ball point pens.
Tungsten steel is usually made via sintering the powder. Take powdered wolfram and black carbon, as well as cobalt metal powder as the binder, and another alloy powder to mix. After that, press the mixture with high pressure and sinter it in a high-temperature environment. The hardness of tungsten carbide is extremely high; its Mohs Scale of hardness is 8.5 to 9, and its melting temperature is 2870°C.
Products: Thimbles
Theseare used in wafer sorters; the methodis to lift the dies (chips) so that the nozzle arm above candraw them into the categorizing area.
Products: Probes
Theseare used in wafer probe tests and automatic/semi-automatic/manual control models to test and light the dies upin order to see if the voltage/current/brightness of the dies meet certain pecifications.
Our double point needles were the first carbon fiber knitting needles in the world ! They are not made of metal, wood, or plastic. What they are made of is a Carbon Fiber Composite - the same material used in the new Boeing 787 Dreamliner and the Blackbird Stealth Jet as well as sporting goods that demand strength in a lightweight material. With their nice pointy tips, we decided that the name Blackthorn DPNs described them perfectly.
Read about us on Ravelry! This link will take you to our Blackthorn DPNs Group. The Group threads are packed with actual user reviews, pictures, comments and answers from myself and fellow knitters.
These sets of 5 needles -- in eight sizes from US 0000 to 4 have the feel of bamboo (smooth but not slick) and feel warm to the touch. They are as strong as but more flexible than steel.
We make our needles in the popular 6" length to accommodate most knitting styles and projects. Your order of Blackthorn DPNs will come in a re-useable clear plastic pillow box.