It is reported that Google is accelerating the speed of Internet services Google Fiber (Google Fiber) has an ambitious speed, the ultimate goal is to increase the current 1Gbps speed 1000 times to 1Tbps.
Recently, Google Optical Fiber Department posted job advertisements hoping to find an optoelectronics engineer who could challenge innovative Internet technologies "to continuously increase network bandwidth at a cost-saving rate of more than 1Gbps per user." Fast in the end how fast, 1Tbps will be the next important goal, but to achieve a long way to go.
If the speed of the internet reaches 1Tbps, it will be inconceivable to download a movie in just 7 milliseconds. Currently, Google Fiber is only available in a few U.S. cities, but 1Gbps is not the fastest and not the fastest. Several companies have released 10Gbps Internet service. The benefits of fiber optic cable are relatively unobtrusive, as London researchers, for example, achieved 1.4Tbps on existing fiber.
Much of the current research on 1Tbps fiber seems to focus on the technology that exploits the Internet backbone that carries data between the data center and the continents. While Google's job advertisements do not explicitly mention 1Tbps, it specifically mentions "per-user" traffic that exceeds 1Gbps, suggesting that Google does more than just consider backhaul connections reaching 1Gbps. In response, Google declined to comment.
PTA Powder
Main application:Repair and strengthen workpiece surface, significantly
Welding method:PTA welding
Main equipment:PTA welding machine
Flame core temperature: about 10000℃
Technological characteristics:PTA has high temperature, concentrated energy, stable combustion, small heat affected zone, fast welding speed, high production efficiency, easy to obtain low dilution rate of surfacing layer, surfacing layer and workpiece matrix are metallurgical bonding,, bonding strength is high.
PTA welding technology is one of surface strengthening methods, which has high deposition rate, low dilution rate, and could be applied with many kinds of powder. The manufacturing craft of PTA powder is normally gas atomization, which reduces satellite of powder. We supply 4 main categories of PTA powder: Nickel-based alloy powder, Iron-based alloy powder, Cobalt-based alloy powder and Mixed Powder.
Nickel Based Alloy Powder possesses high temperature resistance and wear resistance, it is the most popular alloy powder applied by PTA welding both domestically and internationally. Coating hardness is within the range of HRC 30-60. It could be applied to various industries like agriculture, plastic, paper, marine and steel making where wear and corrosion protection needed. Some examples are plunger, moulds, pump leaf and screw.
Iron Based Alloy Powder is more widely used and a more economic choice. With high abrasive resistance, it is more commonly applied to mining tools, drilling tools and mixers of iron and steel making industry, coal industry, shaft, oil and energy industry.
Cobalt Based Alloy Powder is recommended for corrosion and oxidation resistance, with better hot hardness values than equivalent Nickel based alloy powder. It is widely applied to steel making industry, coal industry and mining industry.
Mixed powder mainly refers to NiCrBSi mixing with other hard-phase powder such as cast tungsten carbide and other cemented alloy powder, which allows the powder better hardness around HRC60 and excellent abrasion resistance.
Mixed powder is more often used for mining equipment for oil sands, lignite, oil drilling tools, excavator buckets, extrusion screws for plastic processing, grain and oil processing, etc.
PTA Powder,Iron Based Alloy Powder,Cobalt Based Alloy Powder,Nickel Based Alloy Powder
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