Injection molding process, attention problems: 1. injection molding, injection molding products for the first time can be slightly larger size to make it in the second with another male mold forming tighter in order to achieve the role of sealant. 2. Note that in the second injection molding, plastic flow of whether the first impulse has been forming a good product to plastic deformation bit? If there is a possibility, must find ways to improve. 3. Before A, B plate clamping, pay attention to whether the former mode slider or lifter will be reset and the crushed product? So, we must find ways to make the A, B clamping plate first, then slide the front mold or slant to reset. The two master mold and mold public water transport arrangement as fully as possible, and the balance, the same. 5.99% of the cases is the first part of precision injection molded hard plastic products, and then injection molded soft part of the product. Because soft deformation. Research Progress injection molding injection molding technology with traditional molding are very different, their respect molding materials, molding and molding equipment, etc. have put forward different requirements. Many mature existing injection molding technology and theory does not apply to micro-injection molding, must be on the theory and practice of the characteristics of the micro-injection molding systems and thorough study and discussion. Plastic molding technology began in the 20th century in the late 1980s, is a new advanced manufacturing technologies. In the micro-injection molding process, due to the size of micro products, small size and weight make the traditional injection molding a big difference in Kunshan precision molds, micro-structural products under normal conditions easily fill dissatisfaction phenomenon. The melt flow in the micro chamber becomes complicated. So if numerical simulation precision casting equipment can predict the flow behavior of the melt in the cavity, thereby scientifically choose the best option products, mold design and process conditions precision castings, become important to improve the micro-molding products for micro injection molding process means. First, the concept of micro-injection date, micro injection molding technology for accurate and uniform definition yet, but most of the researchers are from the small size and small volume molding of plastic parts start of the study. kuklac et al [1] from the perspective of miniature plastic parts, the concept of micro-injection molding technology. Micro-injection molding technology that should be able to shape the following types of plastic parts: the small size of the overall structure of the surface 1. 2. plastic parts have plastic parts 3. The fine structure of micro-precision plastic parts precision punching, precision, from Shenzhen Hengxin multicolor Multicolor Hengxin Technology Limited. Karen multicolor Xin Technology Co., Ltd. (www.szhxds.cn) strong, credible, in Shenzhen, Guangdong plastic mold industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Hengxin innovative ideas will lead into the brilliant multi-colored and you work for a better future!