The injection molding machine pilot oil accumulator storage pressure is too low

How to manage pressure loss in the molding process?

Managing the pressure loss in the molding process is complicated and influenced by many factors that are outside the control of the molder. We must evaluate each of the following areas to ensure that the molder has a wide process window. The first step of selecting a material is to evaluate the viscosity characteristics.

What is the pressure in a mold?

temperature of 20-40 °C. Due to the joint effects of accumulator back pressure and the foaming gas pressure, the total pressure in the mold ranges from 0.5 to 10 MPa, depending upon the article's dimensions and density, as well as upon the equipment's capacity and design.

What is viscosity in injection molding?

Remember, viscosity is measuring the internal resistance to flow. Certain materials, like polycarbonates, will always have a high viscosity and will require higher injection pressure from the molding machine to create flow. Next, the focus shifts to the Melt Flow Index (MFI) or Melt Flow Rate (MFR).

How hard is injection molded?

The thickness of the part plays an important role in how difficult the molding process will be. Typically, injection molded parts will be between 0.040 and 0.250 in. thick. Another factor that can drastically influence the molding success is how large the part is.

What is Loll' pressure if molding technology?

Loll' pressure IF molding technology has penetrated markets characterized by small parts requiring precise dimensions, for example parts for business machines, do mestic appliances, and computers. These parts demand processing flexibility and control not found, until recently, on conventional low pressure machinery.

What pressure does foaming occur in a mold?

Foaming in the mold occurs at a pressure of 1.4-2.4 MPa, to take up the whole volume of the mold. Upon cooling, the article is demolded, the mold closed again and the cycle repeated. Note Fig. 4.2a and b.