In recent years, the price of cable channel port, harbor vast demand at home and abroad and showed increasing trend of development of cable ducts, resulting in the current cast of stainless steel metal casting industry, especially the much-loved. Industry experts concluded that for two reasons: First, with the continuous development of the port supply cable ducts, metal casting products, more and more of China's exports and improve the economic status of the casting industry and our country to other countries, increasing overseas demand for direct pull an increase in product yield of casting manufacturing enterprises. Second, high-quality win the world to improve the quality of domestic metal casting products also increase their demand for an important reason. Our metal castings industry is booming. Casting: Depression Other names: indented, collapsed, suffocation, collapse edge. Characteristics: dented portion appearing on the casting smooth surface, the surface was naturally cooled state. Causes a casting structure design is unreasonable, there are thick parts locally generated heat section. 2, alloy shrinkage. 3, the gate cross-sectional area is too small. 4, the ratio down. 5, the mold temperature is too high. Remedy 1, improve casting structure, somewhat uniform wall thickness, thickness difference between the larger joints should gradually ease the transition port cable trough, eliminating hot section. 2. Select the shrinkage of the alloy. 3, correctly set the gating system, appropriate to increase the cross-sectional area of ??the gate. 4, increasing injection pressure. 5, appropriate adjustments to die thermal equilibrium conditions, the use of temperature control devices and cooling. Port cable channel vendors _ Chen Hua machinery (certified) _ port 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.