What are the physical performance indicators of common frame materials?

What are the physical performance indicators of common frame materials?

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The most common frame used in screen printing is aluminum frame, followed by wooden frame and steel frame. The main physical performance indicators of these types of frames are as follows:

1 elastic coefficient in Newtons/cm. The elastic modulus of wood material is 0.12×10 7th Newton/cm, the aluminum material is 0.75×10 7th Newton/cm, and the elastic coefficient of steel material is 2.1×10 7th power. Newton / cm.

2 moment of inertia, the unit is expressed in centimeters of the fourth power. When the cross-sectional shape of the frame material is hollow (the outer frame size is 5×4 cm and the wall thickness is 2.5 mm), the moment of inertia of the aluminum material and the moment of inertia of the steel material are 15.088 cm, and the wooden frame section When the shape is a solid rectangle (5 × 4 cm), the moment of inertia is 41.667 cm.

3 density, expressed in grams per cubic centimeter. The density of the wood material was 0.9 g/cm 3 , the density of the steel material was 7.8 g/cm 3 , and the density of the aluminum material was 2.7 g/cm 3 .

4 coefficient of thermal expansion (10 to the fifth power / ° C). The aluminum material has a coefficient of thermal expansion of 2.410 and a cooling factor of 2.510. The coefficient of thermal expansion of the steel material is 1.2 to 5 centimeter/°C, and the coefficient of thermal expansion of the wood material is 3.0 to 5 centimeter/°C.