1. solidification technology called solidification technology, the liquid metal along a certain amount of heat to be discharged, or through the implementation of a liquid metal fast solidification direction, so that the grain growth (coagulation) toward a certain direction, and finally A process for obtaining a single direction of the grain structure or single crystal casting organizations. Due to advances in cooling and control technology, the strength and the direction of heat discharged continuously improve, so that the liquid in the forefront of solid-liquid interface temperature gradient increases, which not only improve the directional grain growth, and tissue finer long, straight, and extend the targeted area. solidification technology has been widely applied to cast superalloy turbine blade production, due to the excellent mechanical properties along the directional growth of the organization, the working temperature of the blade greatly improved, so that the aero-engine performance improvement. Latest Development solidification technology is preparing a single crystal castings, such as single crystal turbine blades, it solidified columnar grain blade than the general sequence has a higher operating temperature, thermal fatigue strength, creep strength and corrosion resistance. With this superalloy single crystal blades of aeroengine 150kn bollard, effectively increases the thrust and efficiency of aircraft engines 1500kn bollard, its performance is greatly improved. Casting is relatively early humans mastered a metal thermal processing, about 6000 years old. BC has entered China about the heyday of bronze casting between 1700 and 1000 years ago, the technology has reached a very high level. Casting is the liquid metal into the shape of the part to adapt to the casting cavity bollard Usually, wait until the cooling and solidification to obtain parts or blank approach. [1] is cast mostly original material is solid but heated liquid metal (for example: copper, iron, aluminum, tin, lead) bollard, and the mold material may be sand, metal or ceramics. In response to the different requirements, the methods used will be different. Chinese Shang weight 875 kg Si Mu Wu Fang Ding, statue of Marquis Yi plate Warring States Period, Western Han-transparent mirror, they are representative of the ancient casting products. Early casting mostly agricultural production, religion, life and other aspects of the tool or appliance, strong color art. Then the casting process in parallel with the development of ceramic technology, greatly influenced by the pottery. Chen Hua Machinery (FIG), bollard Usually, bollards provided by China Machinery Equipment Co., Ltd. Qingdao Chen. Qingdao Chen Hua Machinery Co., Ltd. (www.qdchenhua.com) is specialized in the "press, harbor bollards, adjustable multi-axis tapping drilling machine, CNC multi-axis drilling, milling goal" of the enterprise, companies adhering to the "integrity management , the intentions of service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Yuan Xi Chuan.