Since the sixties of this century the US company Union Carbide invention Lacey graphite flexible graphite manufacturing technology, the development of flexible graphite industry nearly 40 years of history. Long soft graphite as an excellent sealing material, has gradually been familiar engineering carbon graphite manufacturers, and someone gave it as a "seal king" in the title. Flexible graphite machining derived from natural flake graphite. The key technical preparation is to prepare natural flake graphite into graphite intercalation compounds. Currently graphite, expandable graphite domestic production using two processes: chemical and electrochemical methods. In addition to the oxidation step of the process two different outer graphite sold Lacey, deacidification, washing, dehydration, drying, etc. Other steps. The quality of the vast majority of manufacturers using chemical products, to achieve GB10698-89 "expandable graphite" standard indicators, to meet the bulk of the production of flexible graphite sheet material requirements and export supply standards. But low volatile (<10%) and production of special requirements, low sulfur content (<2%) of the product is more difficult, production technology, however. Lacey graphite graphite _ _ Carbon Weifang Sea Dragon Sea Dragon by Carbon Co., Ltd. Weifang. 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!