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Processing method for integrated Fiber Reinforced Plastic (FRP) mould of rail headstock

A fiberglass mold and processing method technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, etc., can solve the problems of poor mold quality, long construction period, high wood cost, etc., and achieve the effects of stable dimensional accuracy, short processing cycle, and convenient transportation

Inactive Publication Date: 2010-06-16
CHANGCHUN RAILWAY VEHICLE FACILITIES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for processing the integral glass fiber reinforced plastic mold of the rail locomotive, which overcomes the disadvantages of the existing plank lofting and block stacking method, such as drawing lofting and plank stacking, long construction period, high wood consumption, and poor mold quality.

Method used

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  • Processing method for integrated Fiber Reinforced Plastic (FRP) mould of rail headstock
  • Processing method for integrated Fiber Reinforced Plastic (FRP) mould of rail headstock
  • Processing method for integrated Fiber Reinforced Plastic (FRP) mould of rail headstock

Examples

Experimental program
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Effect test

Embodiment 1

[0023] 1. Make a female mold

[0024] The female mold 2 is processed by numerical control, and the material of the female mold is a polystyrene foam board. The female model surface 3 is obtained by offsetting the mold surface 1 by 5-10mm, and this 5-10mm is used as the machining allowance of the mold after the male mold is pulled out. (see attached figure 1 with figure 2 )

[0025] 2. Paste model resin

[0026] Mix the epoxy resin (H6403A) and the curing agent (H6405-1B) at a ratio of 1:1 at normal temperature and pressure, and place them in a ventilated and dry place. The two will react chemically to obtain the paste model resin 4; The shape model resin 4 is evenly coated on the female mold 2 with a coating thickness of 40-60 mm, waiting for curing. The curing time varies slightly according to the season, generally 8 to 12 hours in winter and about 8 hours in summer. (see attached image 3 )

[0027] 3. Bonding steel skeleton

[0028] After the pasty model resin 4 i...

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Abstract

The invention discloses a processing method for an integrated FRP mould of rail headstock; as for the structural design, a fixed structure with a pre-buried reinforced steel frame support and an integrated soleplate is adopted to rapidly complete the numerical control milling preforming of a mould curved face; the surface is coated with mould paste resin and is pre-buried with a welding frame; polystyrene female mould material is removed after the mould paste resin is solidified to obtain the integrated mould blank, and then the fine milling process of the integrated mould streamline curved face is assembled on a numerical control gantry milling once based on the programming of a mathematical model; and all precision is guaranteed completely by numerical control processing, and each curved face curvature completely meets the requirements of the original mathematical model. The processing method has stable precision in mould size, short period in processing, beautiful integrated appearance and convenient transportation.

Description

Technical field: [0001] The invention discloses a method for processing an integral glass fiber reinforced plastic mold of a rail locomotive, which is used for processing large glass fiber reinforced plastic molds such as urban rail and subway locomotives, and belongs to the technical field of mold production and processing. Background technique: [0002] At present, the processing of the overall glass fiber reinforced plastic mold of the urban rail and subway locomotive is basically made of a plank lofting and stacking structure, and the manual grinding process is made: first, the model section is obtained by uniform layering along the Z direction according to the three-dimensional 1:1 mathematical model; according to The cut model section is processed with wooden boards; the wooden boards are listed according to the height of the digital model layered interception; the model surface is filled with a certain thickness of wood; finally, the wooden model surface is manually po...

Claims

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Application Information

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IPC IPC(8): B23P23/04
Inventor 朱宝诚王峰李洪波
Owner CHANGCHUN RAILWAY VEHICLE FACILITIES
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