In order to determine the elasticity of the paint film, Orlov proposed to use the method used in the rubber industry to test the elasticity of rubber. When the paint film is loaded and removed at the same time, the curve of the work of the residual strain can be used as the standard of elasticity.
The numerical values under the applied load and the elongation corresponding to the load are arranged on the coordinate axes of the graph. The ratio of the area of the remaining deformation work of the paint film after the load is removed to the corresponding area of the paint film when the load is applied is called the elastic coefficient that can indicate the elasticity of the paint film.
The numerical values under the applied load and the elongation corresponding to the load are arranged on the coordinate axes of the graph. The ratio of the area of the remaining deformation work of the paint film after the load is removed to the corresponding area of the paint film when the load is applied is called the elastic coefficient that can indicate the elasticity of the paint film. (Related instrument: bending Tester)
Figure 134 shows the sketch of the Orlovian device for drawing the residual deformation curve of the paint film when the load is added and when the load is removed. This instrument, for example, can be used to draw a curve diagram of the tensile stress when the clip 10 is connected, and can also be used to draw a graph of the deformation of the mine when the clip is not connected and the motor is reversed by a switch. Paint film 8 is loaded by plate fee 11.
The worm gear 2 driven by the electric motor 1 stretches the paint film. Cylinder 12 and the lever system 9 etc. with fountain pen can be used for extracting the curve by the necessary scale, and in the curve machine, the load is expressed on the level coordinate axis, and the secondary elongation rate is expressed on the performance coordinate.
