Foundry Wharf three slots cable trough to the casting quality control and inspection. First, the process to develop codes of practice and technical conditions from raw materials, auxiliary materials to each specific control and inspection of the product. For each procedure are strict rules and technical conditions according to the process control and inspection. Finally, the finished castings for quality inspection. Be equipped with a reasonable and appropriate detection method testing personnel. General appearance quality of the casting, the available comparison specimens to determine the casting surface roughness; subtle coloring crack surface available, magnetic particle method checks. The internal quality of the casting, available audio, ultrasonic, eddy current, X-rays and γ-rays and other methods to check and judge. Our country is in the 1950s and the beginning of the sixties the investment casting used in industrial production. Later this advanced casting process has been a huge development of three slots dock cable trough price, have been widely used in the aerospace, automotive, machine tools, ships, internal combustion engines, gas turbines, telecommunications equipment, weapons, medical equipment and tools and other manufacturing industries and also for the manufacture of arts and crafts. The so-called investment casting process, it simply is to use fusible material (such as wax or plastic) fusible model (referred to as the melting mold or model), which is coated in several layers of a special fire-resistant coating, after drying and hardening After the formation of a whole shell, then steam or hot water from the melting shell out three slots of dock cable trough, and then placed in the shell sand box filled with dry sand molding dock cable ducts supply three slots around it, After finally cast into the roaster in the high-temperature calcination (such as the use of high-strength shell, may not have a direct style and the shell ejection after roasting), mold or shell after roasting, in which molten metal is poured obtain castings. Three slots dock cable ducts supply, Chen Hua machinery (certified), three-slot dock cable channel provided by China Machinery Equipment Co., Ltd. Qingdao Chen. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) is Qingdao, a leader in CNC machine tools over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chen Hua Machinery leadership in the staff warmly welcome all inquiries negotiations to create a better mechanical Chen Hua future.