Graphite deposits in China is very rich, Shandong and Heilongjiang is a major producer of flake graphite, in addition, there is also a graphite deposit in Inner Mongolia. India. India is the world's second-largest producer of natural graphite, but its output was only 120,000 tons of one-seventh of China. Mainly domestic-oriented foundry crucible consumption. The main producing states are Orissa and Rajasthan, Andhra Pradesh, Bihar, Gujarat and Tamil Nadu is also the production of natural graphite. Orissa, India accounted for 65-75% yield. Shrinkage installation of the Act is mainly used in the PV value larger bearings. Milk is known graphite, graphite bearings have a low coefficient of thermal expansion and elastic modulus graphite milk prices, we should keep it firmly in the metal jacket is very difficult. Therefore, only the outset with a high tolerance to go, for graphite milk wholesale, first cold bearings can be loaded into a pre-heated metal sleeve seat a certain temperature. Preheat temperature should be less than its maximum operating temperature. Followed by cooling the metal sleeve shrink, thus creating a certain pressure, the bearing in place. When using this method of installation, it should be noted: 1) bearing support must be in full contact with the outer surface of the bearing, it may crush bearings. 2) To select the exact size of carbon graphite bearing processing, even at the maximum operating temperature, should be subject to some residual stress of the bearing fastening. 3) the use of this method of installation graphite, in considering the bearing support material bearing support should always try to get some pressure on the bearings. For this reason, the best selection and the bearings have the same (or close to) the thermal expansion coefficient of the material to manufacture bearing support (ie bush). 4) when the bearing is used at or above 250 ℃ 250qC temperature condition, the bearing bush L) should have a very low coefficient of thermal expansion, in order to guarantee for the bearings to avoid damage. Especially for small bearings, but also to be noted that the best selection of low carbon steel thermal expansion coefficient of the material to do the bearing bushing. Experience has shown that when the bearing outer diameter of 25 mm, with the gap using a negative 0.1 - 0.15 mm is suitable. When the contraction is mounted to the bearing mounting method loquat aluminum or phosphor bronze (or the same material having a high coefficient of thermal expansion) of the bearing sleeve, there should absolutely be avoided exceed the allowable temperature range. Graphite milk wholesale | Graphite | Sea Dragon by Carbon Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) strong, credible, Shandong Weifang graphite and carbon products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the industry in the North Sea Dragon carbon into the brilliant and you work for a better future!