Graphite powder can also be classified according to purpose, nature, it can be said industry classification according to the application of graphite milk prices, can be divided into chemical use graphite powder, conductive graphite, lubricating graphite, graphite battery, sealed with a graphite powder, powder metallurgy graphite powder and graphite products. Shrinkage installation of the Act is mainly used in the PV value larger bearings. Is well known, graphite bearing has a lower thermal expansion coefficient and elastic modulus, it is necessary that it is firmly held in the metal sleeve is very difficult. Therefore, only the beginning of high tolerances in, do so, first cold bearing into pre-heated to a certain temperature inside the metal sleeve seat. 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) With this installation method, when considering the bearing support material graphite 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 bearing carbon graphite, 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. Sea Dragon graphite milk prices _ _ Carbon graphite provided by Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the North Sea Dragon carbon industry leadership with the staff warmly welcome all inquiries negotiations to create the North Sea Dragon carbon industry a better future.