Method for integrally forming light automobile floor
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A lightweight, automotive technology, applied in the field of sheet metal forming, can solve the problem that the performance requirements of floor materials are different from those of FRP sheets, and achieve the effects of superior performance, high compressive strength and good manufacturability
Inactive Publication Date: 2016-06-01
SHANGHAI YUEKE COMPOSITE
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Both of the above two patents are for the preparation of FRP sheets. Since floor materials are different from FRP sheets, and the performance requirements of floor materials are different from those of FRP sheets, vacuum infusion is rarely used to produce floor materials at present.
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[0022] A method for integrally forming a lightweight automobile floor, comprising the following steps:
[0023] (1) Treat the mold before laying the mold: apply the mold cleaning agent twice on the surface of the mold, once every 30 minutes, and wipe it evenly; apply the sealing agent on the surface of the mold twice, once every 30 minutes, and wipe it evenly; Apply the release agent on the surface of the mold 3 times, once every 30 minutes, and then polish it with a clean cotton cloth; wax the surface of the mold 2 times, once every 30 minutes, and then polish it with a clean cotton cloth.
[0024] (2) Mold layup: such as figure 1 As shown, on the surface of the mold 1, the bottom glass fiber cloth 2, the PET foam sandwich core 3, the upper glass fiber cloth 4, the release cloth 5, the isolation film with holes 6, the PP perforated plate 7, the guide net 8 and the vacuum Bag film9. The vacuum bag film 9 is sealed and connected with the mold 1, and the vacuum bag film 9 conn...
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Abstract
The invention relates to a method for integrally forming a light automobile floor. The method comprises the following steps: firstly, mold laying-up operation is carried out, wherein bottom layer glass fabric, a PET foam core sandwich, upper layer glass fabric, release cloth, an isolation film with holes, a PP punching plate, a flow guide net and a vacuum bag film are sequentially laid on the surface of a mold, one end of a winding pipe stretches into the interior of the vacuum bag film, the other end of the winding pipe is connected with an external vacuum pump, one end of a resin injecting pipe is connected to the flow guide net, and the other end of the resin injecting pipe is connected with an external resin tank; secondly, the vacuum pump is started to carry out vacuum pressure maintaining; and thirdly, thermosetting resin is poured from the resin tank to enter the interior of the bottom layer glass fabric, the interior of the PET foam core sandwich and the interior of the upper layer glass fabric, excess thermosetting resin is sucked out through the winding pipe, mold releasing is achieved after curing treatment, and the light automobile floor formed by the bottom layer glass fabric, the PET foam core sandwich, the upper layer glass fabric and the thermosetting resin poured into the bottom layer glass fabric, the PET foam core sandwich and the upper layer glass fabric is obtained. Compared with the prior art, the automobile floor obtained through the method is flat and attractive in surface, light, difficult to combust, dampproof, corrosion-resisting and good in weather resistance.
Description
technical field [0001] The invention relates to a sheet forming method, in particular to a method for integrally forming a lightweight automobile floor. Background technique [0002] At present, many car floors, including electric bus floors, mostly use plastic panels, which have poor heat resistance, are easily deformed, warped, have single mechanical properties, and have a short service life. [0003] Adopt the method for vacuum infusion to produce the existing report of plate, announced a kind of vacuum infusion method of FRP nacelle cover as Chinese patent CN103538266A, comprise nine steps, (1) select vacuum pump, (2) lay guide on the glass fiber layer of nacelle cover Flow net, (3) Lay a winding pipe around the outer edge of the mold of the nacelle cover, (4) Set an air suction port on the winding pipe, and the air suction port is connected to the vacuum pump through a steel wire hose, (5) Install a vacuum guide on the flow guide net Flow layout diagram, laying winding...
Claims
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