Method for improving strength of plastic quick-formed parts and equipment for producing special wires

A molding and fast technology, applied in the direction of additive processing, etc., can solve the problems of inability to accurately control the temperature of the heating area, complex mechanical structure, poor equipment reliability, etc., and achieve excellent microwave absorption, good effect, and low cost.

Active Publication Date: 2016-05-18
泗县微腾知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some researchers set up heating devices such as infrared rays or lasers in the 3D printer. During the molding process, the heating device is used to locally heat the molding part to improve the interlayer strength. However, this method requires the heating device to move together with the printer extrusion head. Moreover, the forming part needs to be heated in a very short time, resulting in a complicated mechanical structure and poor equipment reliability. At the same time, it is impossible to accurately control the temperature of the heating area, so the effect is not ideal

Method used

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  • Method for improving strength of plastic quick-formed parts and equipment for producing special wires
  • Method for improving strength of plastic quick-formed parts and equipment for producing special wires

Examples

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Effect test

Embodiment 1

[0030] This method is used to make a rapid prototyping part of the car rearview mirror housing. The material is ABS, the outline size is 220mm×200mm×80mm, and the minimum wall thickness is 2.5mm.

[0031] It is a method for improving the strength of plastic rapid prototyping parts, including the following steps:

[0032] Step 1: Preparation of plastic wire with graphene microchips adhered to the surface

[0033] Use the plastic extruder 1 to extrude the ABS plastic pellets into a special wire 2 for 3D printers with a diameter of 1.75±0.03mm. The special wire 2 is suitable for the fused deposition molding process (FDM); The hot special wire 2 is cooled and shaped by the cooling tank 3, and the graphene dispersion 4 is installed in the cooling tank 3. The special wire 2 passes through the cooling tank 3 and the graphene microchip is adhered to the back surface; the graphene microchip is to be adhered After the moisture on the surface of the special wire 2 evaporates to dryness, it is ...

Embodiment 2

[0044] This method is used to make rapid prototyping parts of the hair dryer shell, the material is PLA, the outline size is 180mm×160mm×90mm, and the minimum wall thickness is 2mm.

[0045] It is a method for improving the strength of plastic rapid prototyping parts, including the following steps:

[0046] Step 1: Preparation of plastic wire with graphene microchips adhered to the surface

[0047] Use the plastic extruder 1 to extrude the PLA plastic pellets into a 3D printer special wire 2 with a diameter of 3±0.05mmmm. The special wire 2 is suitable for the fused deposition molding process (FDM); The hot special wire 2 is cooled and shaped by the cooling tank 3, and the graphene dispersion 4 is installed in the cooling tank 3. The special wire 2 passes through the cooling tank 3 and the graphene microchip is adhered to the back surface; the graphene microchip is to be attached After the moisture on the surface of the dedicated wire 2 evaporates to dryness, use the winder 10 to wi...

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Abstract

The invention relates to a method for improving strength of plastic quick-formed parts and equipment for producing special wires. The method is characterized by comprising the steps of: preparation of plastic wires bonded with graphene microchips on the surfaces, production of the quick-formed parts, microwave treatment and insulation and cooling. The equipment comprises a frame, a plastic extruder, a cooling tank, a ultrasonic disperser, a traction wheel set and a winder. The method has the following advantages: the produced plastic quick-formed parts are high in strength, excellent in layered strength and invariable in sizes and shapes of traditional workpieces; and the method is convenient to operate, low in cost, excellent in effect and suitable for various thermoplastic quick-formed parts.

Description

Technical field [0001] The invention relates to a method for improving the strength of a plastic rapid prototyping part and equipment for producing special wire rods, in particular to a method and production for improving the strength of a plastic rapid prototyping part by adding graphene microchips to the surface of the plastic wire rod and subjecting it to microwave treatment Special wire equipment, which is suitable for all kinds of plastic rapid prototyping parts formed by fused deposition technology. Background technique [0002] Fused deposition (FDM) rapid prototyping process is to heat thermoplastic or other hot-melt materials, extrude them from the nozzle in the molten state, and use the cohesiveness of the extruded filamentary materials at high temperatures to form a layer by layer. Parts required. This technology was first successfully developed by Stratasys in the United States in 1993. Because of its advantages such as no need for lasers, simple use and maintenance,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y40/00B29C47/00B29C47/08B29C47/88B29C48/06
CPCB29C48/05B29C48/25B29C48/911B29C71/02B29C71/04B29C48/06B29C48/919
Inventor 许中明王鸿博成伟华
Owner 泗县微腾知识产权运营有限公司
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