Manufacturing method for carbon fiber composite horizontal rotor fan cover of centrifuge

Abstract

The invention discloses a manufacturing method for a carbon fiber composite horizontal rotor fan cover of a centrifuge. The manufacturing method comprises the following steps: 1, using carbon fiber tows as raw materials, and impregnating the carbon fiber tows with resin; manufacturing a core body blank in a horizontal rotor fan cover shape by adopting forming methods such as spinning or die pressing of an aluminum plate, and finishing the core body blank to obtain a core body in the horizontal rotor fan cover shape with a certain boundary dimension; 2, winding the carbon fiber tows impregnatedwith the resin around the periphery of the core body in the horizontal rotor fan cover shape to form a reinforcing layer wrapped around the core body; and 3, heating and curing the core body in the horizontal rotor fan cover shape wrapped with the reinforcing layer in an oven to obtain a core body reinforcing body in the horizontal rotor fan cover shape, and carrying out polishing and paint dipping on the outer contour of the core body reinforcing body in the horizontal rotor fan cover shape to form the carbon fiber composite horizontal rotor fan cover with a three-dimensional structure. Thecarbon fiber composite horizontal rotor fan cover has the advantages of light weight, strong corrosion resistance and high strength.

Description

technical field [0001] The invention belongs to a manufacturing method of a centrifuge rotor wind cover, in particular to a manufacturing method of a carbon fiber composite centrifuge horizontal rotor wind cover. Background technique [0002] Traditional horizontal rotor windshields used in centrifuges are generally made of aluminum alloy, which has heavy weight, poor corrosion resistance, low strength, frequent high and low temperature changes, and cyclic operation are prone to metal fatigue. With the continuous increase of the centrifuge speed and the extension of the use environment and separated substances, the aluminum alloy material can no longer fully meet the requirements. [0003] The existing technology usually uses 3003 series antirust aluminum plates to form blanks by spinning or molding, and then mechanically processes the blanks to manufacture horizontal rotor windshields. Because the horizontal rotor windshields made of antirust aluminum alloys are subject to ...

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Problems solved by technology

[0002] Traditional horizontal rotor windshields used in centrifuges are generally made of aluminum alloy, which has heavy weight, poor corrosion resistance, low strength, frequent high and low temperature changes, and cyclic operation are prone to metal fatigue

With the continuous increase of the centrifuge speed and the extension of the use environment and separated substances, the aluminum alloy material can no longer fully meet the requirements.

[0003] The existing technology usually uses 3003 series antirust aluminum plates to form blanks by spinning or molding, and then mechanically processes the blanks to manufacture horizontal rotor windshields. Because the horizontal rotor windshields made of antirust aluminum alloys are subject to the rust resistance of 3003 series Due to the restriction of the performance of the aluminum plate material (the yield strength of the 3003-O aluminum plate is 48MPa), when the centrifugal force exceeds 4000×g, it may cause slight deformation of the windshield of the horizontal rotor

When the local centrifugal force exceeds 8000×g, the windshield of the horizontal rotor will be radially stretched and deformed under the centrifugal force, collide with the centrifugal chamber, scratch and crack, resulting in damage to the centrifuge

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