The parts are long.The clever use of copper castings can effectively save energy, which can only be achieved through scientific energy management and the implementation of energy-saving and water-saving technologies.These measures can be implemented with simple operations. For example, the reasons for flashing of die-casting parts are: Die-casting machine problem: the clamping force is adjusted incorrectly.

Mold problems: deformation, debris on the parting surface, uneven wear of inserts and sliders, and insufficient template strength. Adjust process parameters, injection force, injection speed, filling time, mold opening time, pouring temperature, mold temperature, etc. From easy to difficult, every time you make an improvement, check its effect first, and then proceed to the second step if it doesn’t work.

Change materials, choose high-quality aluminum alloy ingots, change the ratio of new materials to recycled materials, and improve the smelting process. 2) Process problem: The injection speed is too high, resulting in a pressure shock peak that is too high.Since the causes of each type of defect come from many different influencing factors, to solve the problem in actual production, is it right to adjust the machine first in the face of many reasons?

Or change the material first? Or modify the mold first? It is recommended to deal with it according to the degree Four Cylinder Head of difficulty, simplifying first and then complicated. The sequence of measures to solve the flash: clean the parting surface → increase the clamping force → adjust the process parameters → repair the worn parts of the mold → increase the stiffness of the mold. The sequence is: Clean the parting surface, clean the cavity, clean the ejector pin; improve the coating, improve the spraying process; increase the clamping force and increase the amount of metal poured.Modify the mold, modify the gating system, add internal gates, add overflow grooves, exhaust grooves, etc