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Method for Improving the Strength of Plastic Rapid Forming Parts and Equipment for Producing Special Wires

A molding and fast technology, applied in metal processing equipment, additive processing, additive manufacturing, 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 and high-efficiency Good, low cost effect

Active Publication Date: 2018-01-02
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 the Strength of Plastic Rapid Forming Parts and Equipment for Producing Special Wires
  • Method for Improving the Strength of Plastic Rapid Forming Parts and Equipment for Producing Special Wires

Examples

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Embodiment 1

[0030] This method is used to make rapid prototypes of automobile rearview mirror shells. The material is ABS, the outline size is 220mm×200mm×80 mm, 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 wires with graphene microsheets attached to the surface

[0033] Use a plastic extruder 1 to extrude ABS plastic particles into a 3D printer special wire 2 with a diameter of 1.75±0.03mm, and the special wire 2 is suitable for fused deposition modeling (FDM); the freshly extruded uncured The hot special wire 2 is cooled and shaped through the cooling tank 3, and the graphene dispersion 4 is installed in the cooling tank 3, and the surface of the special wire 2 after passing through the cooling tank 3 adheres to the graphene microchip; the graphene microchip to be adhered After the moisture on the surface of the special-purpose wire rod ...

Embodiment 2

[0044] This method is used to make a rapid prototyping part 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 wires with graphene microsheets attached to the surface

[0047] Use a plastic extruder 1 to extrude PLA plastic particles into a 3D printer-specific wire 2 with a diameter of 3±0.05 mm mm, which is suitable for fused deposition modeling (FDM); The special wire rod 2 in the hot state is cooled and shaped through the cooling tank 3, and the graphene dispersion liquid 4 is housed in the cooling tank 3, and the graphene microsheet is adhered on the surface of the special wire rod 2 after passing through the cooling tank 3; After the moisture on the surface of the special-purpose wire rod 2 of the sheet is evaporated to dryness, it is rewound wit...

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Abstract

The invention relates to a method for improving the strength of plastic rapid prototyping parts and equipment for producing special wire rods. The method is characterized in that the method includes the steps of: preparing plastic wire rods with graphene microchips on the surface, making rapid prototyping parts, microwave treatment, heat preservation and cool down. Its equipment includes frame, plastic extruder, cooling tank, ultrasonic disperser, traction wheel set and winder. Its advantages are: the manufactured plastic rapid prototyping parts have high strength and good strength along the layer direction, and can keep the original size and shape of the workpiece unchanged. This method is easy to operate, low in cost and good in effect. moldings.

Description

technical field [0001] The invention relates to a method for increasing the strength of plastic rapid forming parts and equipment for producing special wires, in particular to a method and production method for increasing the strength of plastic rapid forming parts by adding graphene microchips on the surface of plastic wires and subjecting them to microwave treatment. Special wire equipment, which is suitable for various plastic rapid prototyping parts formed by fused deposition process. Background technique [0002] The fused deposition (FDM) rapid prototyping process is to heat thermoplastic or other hot-melt materials, extrude them from the nozzle in a molten state, and use the cohesiveness of the extruded filamentous materials to accumulate layer by layer at high temperature to form the Parts are required. This technology was first successfully developed by Stratasys in 1993. It has become the most widely used rapid prototyping technology ( 3D printing technology). ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/118B33Y40/00B29C47/00B29C47/08B29C47/88B29C48/06
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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