Since the nuclear accident at the Fukushima nuclear power plant broke out, Tokyo Electric Power Co., Ltd. has fallen into the dilemma of providing huge compensation to the parties. Tokyo Electric Power Company has stated that they will give up some long-standing policies and will not rely entirely on their own power stations to generate electricity, and will gradually increase the amount of electricity purchased from other power companies to meet demand. In addition, Tokyo Electric Power Corporation also consider selling some power stations.
Yasushi Kimura, president of Nippon Oil Corporation, said: “The current situation hides huge business opportunities. We will make various possible choices, including building and purchasing power stations.†Nippon Oil Corporation's existing power generation The facility can provide 1.3 gigawatts of electricity and they are planning to increase their generating capacity.
As it insists on purchasing oil from Iran, Japan is facing increasing international pressure and Iranian oil accounts for 8% of the total supply of New Japan Oil Corporation. Kimura said that although the United States is stepping up its sanctions against Iran, Nippon Oil Corporation will continue its efforts to obtain oil from Saudi Arabia and other countries.
CBN abrasive is mainly used for steel parts, such as high speed steel, die steel, 45 steel, etc., can be made into electroplating CBN, resin CBN, sintered CBN. Can be made into grinding wheel, cutting pieces, grinding head. Abrasive sharp, high temperature resistance, good thermal stability, wear resistance. The hardness of CBN is higher than that of ordinary abrasives and the ability to maintain shape is one of the main characteristics of high performance abrasives. CBN is very resistant to pressure. CBN has good thermal conductivity and can achieve cold cutting during grinding.
strong wear resistance, long life
The grinding ratio of CBN wheel can reach 3500-5500, which is 100 times higher than that of ordinary corundum wheel and 3-5 times higher than that of diamond wheel.
environmental protection, no pollution, energy saving and consumption reduction
No too much powder dust.
High work efficiency and good comprehensive economic benefits
The grinding is sharp, the grinding force is small, the dressing cycle of CBN wheel is long, the dressing amount is less, and the replacement time is long. Long service cycle, high grinding ratio, can obtain better economy, good shape retention in use, do not need to change and trim grinding wheel often, save working hours, improve working conditions, is conducive to machining operation.
Cubic boron nitride is not suitable for grinding hard metals and non-metallic materials. At high grinding temperature, CBN will react with alkaline aqueous solution. CBN grinding wheel will decompose in alkaline solution at 300℃, and can decompose in trace amount in boiling water, which will destroy the crystal shape of grinding grains. Therefore, oily coolant should be used instead of water-based coolant during grinding.
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Henan Jinlun Superhard Material Co., Ltd , https://www.jlsuperhard.com