Method for forming vehicle frame and pipe fittings of vehicle frame made of thermoplastic composite material winding a thermoplastic fiber prepreg sheet by utilizing a core mold unit on a working surface, and laminating and winding a plurality of layers of the thermoplastic fiber prepreg sheets on the core mold unit to form blank tubes

• Main Authors: GUO, ZIH-HAO, LAI, WEI-MIN, SHEN, MING-YUAN
• Format: Patent
• Language: Chinese; English
• Published: 01.04.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A method for forming a vehicle frame made of a thermoplastic composite material includes the following steps: (A) heating a thermoplastic fiber prepreg sheet; (B) winding the thermoplastic fiber prepreg sheet by utilizing a core mold unit on a working surface; (C) repeating the steps (A) and (B) to laminate and wind a plurality of layers of the thermoplastic fiber prepreg sheets on the core mold unit to form a top pipe blank, a down pipe blank, a vertical pipe blank, two seat stay pipe blanks and two chain stay pipe blanks; (D) putting the top pipe blank, the down pipe blank, the vertical pipe blank, the seat stay pipe blanks, the chain stay pipe blanks together with the core mold unit into a mold for being hot-pressed to form a first top pipe fitting, a down pipe fitting, a vertical pipe fitting, two seat stay pipe fittings and two chain stay pipe fittings, respectively; (E) opening the mold to take out the top pipe fitting, the down pipe fitting, the vertical pipe fitting, the seat stay pipe fittings, the c