China 47Mm Friction Bolt,Split Set Bolt supplier & manufacturer, offer low price, high quality Mining Bolt,Split Set Rock Bolts, etc.
Split set bolt is also called "Split Set Stabilizer". It was successfully developed by American Professor Scott in the early 1970s. It was used as a patented product by Ingersoll Rand for mining support. In the early 1980s, the Beijing Institute of Well Construction conducted exploratory tests on slotted pipe anchors in the laboratory and achieved good results. Later, it was gradually promoted and applied in the coal system.
Split set bolt is a underground mining support product. It has simple installation process and convenient use. It has strong anchoring force and tensile strength in underground mining and shotcrete support. It has Large force, strong expansion force.
Split set bolt has good supporting effect. Bolt support conforms to modern rock mechanics and surrounding rock control theory in terms of support principles, and belongs to active support. After the bolt is installed, the stability of the surrounding rock can be mobilized and utilized, and the bearing capacity of the surrounding rock can be fully utilized, and controls the deformation of the surrounding rock of the roadway effectively.so split set bolt can protect the stability of the surrounding rock of the roadway and improve the maintenance of the roadway.
Split set bolt has simple installation and labor saving. It uses fewer supporting materials and lighter weight than other bolts. When tunneling, the transportation volume of supporting materials is reduced, and the labor intensity is greatly reduced, which is conducive to improving the efficiency of tunneling.
47Mm Friction Bolt,Rock Anchor Bolts,Rock Bolt Sizes,Friction Rock Stabilizer ANTO MINING EQUIPMENT CO.,LTD , https://www.antobolts.com
On April 10, Tesla Motors China mainland charging service plan was announced. Tesla China stated that it is currently training third-party electrician teams to provide Tesla users with paid professional home charging installation services and provide comprehensive charging solutions. Recently, many companies, such as automakers and the State Grid Corporation, have continued to perform actions in the charging of new energy vehicles. The "last mile problem" in the development of new energy vehicles is expected to usher in cracks.
Car prices continued to force <br> <br> the past few years, new energy vehicle charging has been plagued by further development of the industry, the development of the industry to become "the last kilometer problem." New car manufacturers and distributors including Tesla are most active and urgent in overcoming this problem.
According to SAIC Group sources, SAIC Group has already addressed the issue of charging as an important issue for the Group's new energy vehicle development strategy. Earlier, the general manager of SAIC's new energy and technology management department said frequently that the major problem for new energy vehicles is that the infrastructure of charging piles is not perfect and the distribution is unreasonable. It is reported that the Roewe 550PLUG-IN plug-in hybrid sedans introduced by SAIC Motor has made an important preferential policy for charging users. Users who purchase this model will receive a charging pile and a one-year electricity bill.
Prior to this, Beijing Automotive Group also publicly stated that for the installation of charging piles and other issues, BAIC related after-sales departments will be responsible for coordination and payment. According to Lin Yi, executive director of Beiqi New Energy Automobile Co., Ltd., owners of Beijing's new energy vehicles purchased from Beijing Auto will enjoy the “nanny†that is coordinated by BAIC and the buyers’ premises and power supply departments to build charging facilities. Service."
Xu Weihan, chief financial officer of Shanghai Gaozhan New Energy Automobile Co., Ltd., said that similar to the Tesla's charging service plan, domestic car dealers have already been implementing it. Gaozhan is one of SAIC's major distributors of new energy vehicles. At present, the construction of charging piles in the first-tier cities of Beishangguang is gradually spreading. In 2014, it plans to install tens of thousands of charging piles. In the installation mode, the owners of new energy vehicles shall bear the cost of the charging piles. On the basis of full coordination with the residential property and other departments, Gaozhan is responsible for helping the owners to install charging piles on the fixed parking spaces.
Grid <br> <br> open attitude in the new energy vehicle charging problem, car companies and auto dealers in private residential construction outside the charging pile, charging stations to build a large national grid is also important solution. Cinda Securities Liu Qiang analyzed that private charging piles and large charging stations are two important types of charging for new energy vehicles. Tesla entered China. While building private charging devices, it may also cooperate with the State Grid to build large-scale charging stations.
At present, the State Grid has a more open and positive attitude toward the construction of charging facilities for new energy vehicles than before. During the two sessions this year, Liu Zhenya, chairman of the State Grid Corporation of China, publicly stated that the construction of electric vehicle charging and replacing facilities will be fully open to the community. On March 19, the State Grid Corporation of China issued the first batch of bidding for electric vehicle charging and exchanging equipment in 2014. The bidding involved equipment such as vehicle charging equipment, power exchange system, and charging monitoring system. It is reported that the State Grid will launch five tenders for electric vehicle charging and replacement equipment in 2014. Last year, the same level of bidding was not available at the same time.
The above actions of the State Grid have released an important signal to open and promote the construction of charging facilities for new energy vehicles. Some analysts believe that the open attitude of the State Grid, combined with the efforts of new energy vehicle manufacturers and dealers in the charging issue, the development of new energy vehicles, the "final kilometer problem" is expected to be resolved.