Stress Viewers to Examine Residual Stress of Plastics

The Moldex3D Stress Viewer is a non-destructive qualitative method that applies photoelastic response principles to evaluate the presence of internal residual stress. When present within a plastic part, residual stress will negatively influence the precision rates required for dimension and assembling processes.

Furthermore, the presence of internal residual stress will also accelerate the destruction of plastic parts in the loading condition of environmental, creep, and fatigue stresses. Residual stress in plastic parts can also alter the optical properties of photoelectric properties and ultimately cause these products to fail when exposed to secondary processing techniques, such as coating or plating processes.

The use of the Moldex3D Stress Viewer begins by placing a sample of transparent plastic material in between two polarized sheets. As polarized light passes through the part of the material that exhibits the residual stress, light wave components that are parallel and perpendicular to this area propagate through the plastic at varying speeds.

The different colors that result from this process correspond to different levels of speed retardation at points that correspond to specific stress levels. When users obtain these color fringe patterns, they can visualize the areas within the plastic material that exhibit a higher density of color fringe lines that in turn reflect higher internal stress levels.

Product Benefits

  • Checks product quality
  • Enhances competitiveness
  • Directly observes stress levels
  • Stress levels are clear to the user
  • Light and easy to carry
  • Can be applied to various transparent materials

Product Specifications

  • Voltage: 110 V – 220 V
  • Dimensions: 410 x 280 x 60 mm
  • Weight: 3 kg

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