1.1 Mechanical polishingMechanical polishing is a polishing method that involves cutting and removing the protrusions on the material surface after polishing to obtain a smooth surface. It generally uses oilstone strips, wool wheels, sandpaper, etc., and is mainly operated manually. For special part

1. Improve the scientific and reasonable staffing of injection molding department personnel2. Clarify the job responsibilities of personnel in each position. Ensure that everyone has their own affairs to manage, and that there are people in charge of everything3. Streamline the operation process of

1. After the Corinth column is roughly installed, adjust the mold thickness to be less than the mold thickness, bend the crank arm as far as possible, and keep the mold closed.2. Remove all front fixing plates, front fixing nuts, and rear fixing plates, adjust the position of the adjusting nuts appr

The Disadvantages of Plastics1.Poor heat resistance and easy to burnThis is the biggest drawback of plastics. Compared with metal and glass products, their heat resistance is far inferior. When the temperature is slightly higher, they will deform and are easy to burn. During combustion, most plastic