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Laser melt electrostatic direct writing device applied to high-melting-point material and method

A laser melting, high melting point technology, used in additive processing, manufacturing tools, filament/wire forming, etc., can solve the problem of high melting temperature and viscosity

Active Publication Date: 2021-05-14
HUBEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, high melting point materials such as glass have high melting temperature and viscosity, and there are few studies on such materials as raw materials for 3D printing and melt electrospinning technology. Therefore, a laser melt electrostatic spinning method for high melting point materials is designed Writing devices and methods have important scientific research significance and application prospects

Method used

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  • Laser melt electrostatic direct writing device applied to high-melting-point material and method

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Experimental program
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Effect test

Embodiment 1

[0038] The fixed graphite carbon rod is located in the hollow material tube 5; wherein the hollow material tube 5 is a boron oxide tube, and the boron oxide tube adjusts the feeding rate of the feeding roller 6 according to the melting rate of the hollow material tube; the carbon dioxide laser 12 is divided into two parts by a beam splitter 11 One laser beam directly acts on the lower end of the boron oxide tube to melt the boron oxide tube, and the molten boron oxide tube is evenly attached to the tip of the graphite carbon rod frustum; the other laser beam passes through the reflector 13 and the beam expander 10 to separate The beam mirror 11 and the collimator lens 9 are converted into line lasers, which act on the spinning jet to prevent the jet from solidifying in advance, and both laser beams are received by the laser receiver; the upper end of the graphite carbon rod is connected to a high-voltage electrostatic generator 8, which acts as an electrospinning jet. High-volt...

Embodiment 2

[0047] Different from the above-mentioned embodiments, in this embodiment, the hollow material pipe 5 is made of polyethylene terephthalate

[0048] The laser melt electrostatic direct writing method applied to high melting point materials in this embodiment includes the following steps:

[0049] 1. Install the polyethylene terephthalate to be flush with the tip of the lower end of the graphite carbon rod;

[0050] 2. Start the carbon dioxide laser and adjust the power of the carbon dioxide laser to 10W until the polyethylene terephthalate is well melted;

[0051] 3. Based on the melting rate at the lower end of the boron oxide tube, adjust the feeding rate of the feeding roller to 3mm / s;

[0052] 4. After the tip of the graphite carbon rod cone is evenly covered with polyethylene terephthalate melt, start the high-voltage electrostatic generator and adjust the spinning voltage to 1KV until the polyethylene terephthalate melts The body forms a jet under the action of a high-...

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Abstract

The invention discloses a laser melt electrostatic direct writing device applied to a high-melting-point material and a method. The device comprises a three-dimensional receiving platform, a material conveying system, a laser beam splitting heating system, a high-voltage electrostatic generation system and a temperature control system; the three-dimensional receiving platform regulates and controls movement in three directions according to product requirements so as to form a three-dimensional product; the material conveying system involves an electrostatic spinning material and a feeding unit, wherein the feeding unit conveys the electrostatic spinning material downwards; the laser beam splitting heating system involves a laser emitter, a beam splitting reflection device and a laser receiver, wherein laser light emitted by the laser emitter is divided into two beams through the beam splitting reflection device, one beam is used for melting the lower end of the electrostatic spinning material, and the other beam is used for preventing spinning jet flow from being solidified before reaching a receiving plate; the high-voltage electrostatic generation system is used for forming a high-voltage electrostatic field; and the temperature control system is used for adjusting a curing process of spinning fibers. The device can be applied to processing and manufacturing of high-precision products made of high-melting-point organic and inorganic materials.

Description

technical field [0001] The invention belongs to the technical field of electrospinning, and in particular relates to a laser melt electrostatic direct writing device and method applied to high melting point materials. Background technique [0002] 3D printing, also known as additive manufacturing, is based on digital model files and realizes the molding and manufacturing of products by printing bondable materials such as powdered metal or plastic layer by layer. This technology combines precise digital technology, factory repeatability, and artisan design freedom. It has many advantages such as short production cycle, low cost, and product diversification. its development and application. Melt electrospinning is a technique in which a melt overcomes surface tension to form ultrafine fibers under the action of a high-voltage electrostatic field. Most of the products obtained through this technology are two-dimensional structures such as wires, tapes, and films. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/124B29C64/20B29C64/245D01D5/00B33Y10/00B33Y30/00B29K67/00
CPCB29C64/124B29C64/20B29C64/245D01D5/0069D01D5/0092D01D5/0076B33Y10/00B33Y30/00B29K2067/003
Inventor 李秀红李好义杨为民张道德胡新宇魏琼张楚鹏叶旭辉彭毓杰
Owner HUBEI UNIV OF TECH