Most electric cars need to be recharged when they travel about 100 miles (about 161 kilometers), but according to the British "Daily Mail" reported on August 11, the UK is currently implementing a wireless charging device for electric vehicles, which is carried out nationwide. The pilot, if successful, will implement the technology on British highways and main roads.
It is understood that this charging device is installed under the road surface, called "dynamic wireless transmission" technology, the electric car can be charged on the road at any time, and no need to stop in the station, which really solves a big trouble for the owner.
According to statistics, since 2001, more than 35,000 electric vehicles have been registered in the UK. Therefore, it is imperative to solve the charging problem. The pilot project will be completed within this year. If successful, the UK government will implement the national highway and main roads, and it is planned to install charging equipment every 20 miles (about 32 kilometers) in the high-speed network.
According to Mike Wilson, chief engineer of the UK Highway Administration, automotive technology is growing rapidly and we are working to promote the use of ultra-low emission vehicles in the UK. The implementation of the wireless charging pilot will create a sustainable road network for the UK and provide new opportunities for commercial transportation.
Transport Minister Andrew Jones also said that the government has invested 500 million pounds (about 4.97 billion yuan) to keep the UK at the leading edge of technology for the next five years, which will help increase jobs and promote Industry development.
Concerned about surprises
Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.
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