CN105271783B

CN105271783B - A kind of glass powder and preparation method thereof for 3D printing

Info

Publication number: CN105271783B
Application number: CN201510685392.4A
Authority: CN
Inventors: 李宏; 卓永; 许旭佳
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2015-10-21
Filing date: 2015-10-21
Publication date: 2019-03-08
Anticipated expiration: 2035-10-21
Also published as: CN105271783A

Abstract

The invention belongs to 3D printing Material Fields, and in particular to a kind of glass powder and its preparation and be used for 3D printing molding.A kind of glass powder for 3D printing, which is characterized in that with PbO-B₂O₃‑V₂O₅System glass powder is main material, mixes the epoxy resin powder of 8-12wt% outside.The PbO-B₂O₃‑V₂O₅System glass, which is characterized in that its primary raw material includes PbO, V₂O₅、B₂O₃, mass percent shared by each component are as follows: PbO 40%-80%, V₂O₅8%-52%, B₂O₃8%-12%.The present invention is that 3D printing industry adds a kind of new glass printed material, pushes the development of 3D printing technique.

Description

A kind of glass powder and preparation method thereof for 3D printing

Technical field

The invention belongs to 3D printing Material Fields, and in particular to a kind of glass powder and its preparation and be used for 3D printing at Type.

Background technique

3D printing is successively to increase material by 3D printing equipment to manufacture three-dimensional objects according to designed 3D model Technology.3D printing combines many necks such as digital modeling techniques, Electromechanical Control technology, information technology, material science and chemistry The cutting edge technology in domain is one kind of rapid shaping technique, is known as the core technology of " the third time industrial revolution ".With it is conventionally manufactured Technology is compared, and 3D printing need not manufacture mold in advance, it is not necessary to a large amount of material is removed in the fabrication process, also without going through complexity Forging technology can be obtained by final products, therefore, may be implemented in production structure optimization, save material and save energy Source.3D printing technique is suitable for new product development, quick-acting single and parts in small batch manufacture, the manufacture of complicated shape part, mould Design and manufacture of tool etc., are also suitable for manufacture, configuration design inspection, assembly test of difficult-to-machine material etc..Therefore, 3D printing Industry receives concern more and more extensive both at home and abroad, will become next tool rising industry with broad prospects for development.

Currently, 3D printing has been applied to the fields such as product prototype, mold manufacture, art creation product, jewelry-making, can replace The conventional fine processing technology relied on for these fields.3D printing can largely promote the efficiency and precision of production Degree.In addition to this, in the fields such as bioengineering and medicine, building, clothes, the introducing of 3D printing technique has also been opened up more for it Wide development space.Based on the strategic height of 21 century manufacturing industry competition, the U.S., Europe and Japan are all to rapid prototyping technology A large amount of research has been put into, 3D printing technique is rapidly developed.In national defence, European and American developed countries pay much attention to 3D The application of printing technique, and put into huge fund and develop increasing material manufacturing metal parts, especially push increases material manufacturing technology to exist energetically Application in the manufacture of the high values material components such as titanium alloy.

3D printing material is the important material base of 3D printing technique development, and to a certain extent, the development of material determines 3D printing can have the problem of broader applications.Currently, 3D printing material mainly includes engineering plastics, photosensitive resin, rubber Class material, metal material and ceramic material etc., in addition to this, coloured plaster material, artificial bone meal, cell biological raw material and sand The food materials such as sugar are also applied in 3D printing field.These raw material used in 3D printing are all specific to 3D printing Equipment and technique and research and develop, and different froms such as common plastics, gypsum, resin, form generally have it is powdered, Filamentous, The mouths such as lamellar, liquid.In general, used powdered 3D is beaten according to the type of printing device and the difference of operating condition The partial size of print material, which is 1~100 μm, to be differed, and in order to make powder keep good mobility, generally require powder that there is height Sphericity.This greatly restricts the development of 3D printing technique.

In order to expand the use scope of 3D printing material, researchers carry out the lower glass powder of glass transformation temperature It probes into.The lower molding for being conducive to glass of glass transformation temperature, the PbO-V for urging bamboo et al. to prepare₂O₅-TeO₂Its glass of system glass Glass transition temperature has reached 270 DEG C or so；Chinese patent (patent publication No.: CN102190442A) discloses a kind of vacuum glass Sealing-in low melting point glass powder and preparation method thereof, which belongs to B₂O₃-V₂O₅-P₂O₅System glass, Glass Transition temperature Degree has also reached 260 DEG C.Although lead vanadium tellurium system glass mobility of particle is fine, it volatilizees in temperature-rise period very tight Weight, this has seriously affected the heat treatment process after product molding；And alum phosphorus boron system glass can not then expire on mobility of particle Sufficient 3D printing material requirements, and the phosphate in glass can also make the glass powder moisture absorption.PbO-B₂O₃-V₂O₅The glass of system glass Glass transition temperature is low, while being also able to satisfy mobility of particle and the Post isothermal treatment requirement of material, so the system glass can be used In 3D printing.

Currently, although the use of flint glass can all cause certain damage, PbO-B to human body, environment₂O₃- V₂O₅The properties of system glass have all reached the requirement of 3D printing material, and also demonstrating it by experiment is that can use In 3D printing.Therefore, as long as we while carrying out discarded in experiment, production and in use, careful use leaded substance Recovery processing work afterwards, so that it may leaded substance be avoided to damage to human body, environment bring.

Summary of the invention

Object of the present invention is to provide a kind of glass for 3D printing for deficiency existing for current 3D printing glass material Glass powder and preparation method thereof adds a kind of new glass printed material for 3D printing industry, pushes the development of 3D printing technique.

To achieve the above object, the technical scheme adopted by the invention is that: a kind of glass powder for 3D printing, feature It is, with PbO-B₂O₃-V₂O₅System glass powder is main material, mixes epoxy resin powder (the i.e. epoxy resin powder of 8-12wt% outside Additional amount be PbO-B₂O₃-V₂O₅The 8-12wt% of system glass silty amount).

The molding mode that 3D printing selects is selective laser sintering, and scanning speed 800-1400m/s, forming temperature is room Temperature, laser power 8-14W.

PbO-B of the present invention₂O₃-V₂O₅System glass, which is characterized in that its main component includes PbO, V₂O₅、 B₂O₃, mass percent shared by each component are as follows:

PbO 40%-80%,

V₂O₅8%-52%,

B₂O₃8%-12%.

PbO-B of the present invention₂O₃-V₂O₅System glass, which is characterized in that its component also includes Al₂O₃、SiO₂、R₂O、 RO, mass percent shared by each component are as follows:

The R₂O is Li₂O、Na₂O、K₂One or more of O press any proportion mixture, RO ZnO, CuO, One or more of MgO, BaO press the mixture of any proportion.

PbO is introduced by lead oxide；V₂O₅It is introduced by ammonium metavanadate；B₂O₃It is introduced by boric acid；R₂O is introduced by carbonate；RO by Oxide introduces；Al₂O₃It is introduced by aluminium oxide；SiO₂It is introduced by silica.

The preparation method of above-mentioned a kind of glass powder for 3D printing, it is characterised in that include the following steps:

1) by mass percent shared by each component are as follows: PbO:40%-80%, V₂O₅: 8%-52%, B₂O₃: 8%-12%, Al₂O₃: 0%-3%, SiO₂: 0%-5%, R₂O:0%-2%, RO:0%-10%；Weigh PbO, NH₄VO₃、H₃BO₃、Al₂O₃、 SiO₂、R₂CO₃(R₂For Li₂、Na₂、K₂) and RO raw material for standby；The R₂O is Li₂O、Na₂O、K₂One or more of O is by any The mixture of proportion, one or more of RO ZnO, CuO, MgO, BaO press the mixture of any proportion；R₂O is by carbonate It introduces；

2) by weighed PbO, NH₄VO₃、H₃BO₃、Al₂O₃、SiO₂、R₂CO₃It is fully ground, mixes in mortar with RO raw material It is melted after uniformly, 1100 DEG C -1200 DEG C of fusion temperature, keeps the temperature 1-2 hours, obtain glass metal；

3) glass metal is poured into graphite jig and is formed, the glass that casting obtains is placed in annealing furnace, at 300 DEG C -500 It anneals 1-2 hours at DEG C, obtains transparent glass after cooling to room temperature with the furnace；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding；

5) by obtained glass powder, the epoxy resin of 8-12wt% is mixed outside, is sufficiently mixed, obtain the glass for 3D printing Glass powder.

Using: it is room temperature in forming temperature, scanning speed 800-1400m/s, laser power is that will mix under 8-14W The mode of the glass powder selective laser sintering for 3D printing afterwards successively prints, can obtain complicated glass Product.

Obtained PbO-B₂O₃-V₂O₅The glass transition temperature Tg of system glass is 279.9-381.0 DEG C.

When processing, powder is preheating to the temperature of slightly less than its fusing point first, then by powder under the action of striking off rod End is paved；Laser beam is selectively sintered according to layering cross section information under the control of the computer, is carried out again after the completion of one layer Next layer of sintering, removes extra powder after being all sintered, then can be obtained by the part sintered.

The epoxy resin mixed outside moment at a high temperature of laser issues melts, to play adhesive in forming process Effect.

The molding mode that 3D printing selects is selective laser sintering.Glass powder and epoxy resin are sufficiently mixed, at Type temperature is that room temperature, laser are kept under certain output power, by layer-by-layer printing, it is preferable that molding can be made Glassware.Glass powder is used for 3D printing, has expanded the scope of application of 3D printing, make its consumptive material be not limited solely to ceramics, The fields such as plastics, metal also provide a kind of new molding mode for glassware, and solving glass material and being difficult to prepare has The problems such as accurate labyrinth object.

The present invention has following major advantage: 1) by PbO-B₂O₃-V₂O₅System glass is formed for 3D printing, is beaten for 3D Print industry adds a kind of new glass printed material, pushes the development of 3D printing industry；2) it is formed using 3D printing, is PbO- B₂O₃-V₂O₅System glass provides a kind of new molding mode, can quick close complex devices of preparation structure, expand PbO-B₂O₃-V₂O₅The application field of system glass；3) selective laser sintering and moulding PbO-B is used₂O₃-V₂O₅When system glass, It can carry out at room temperature, to keep forming process more simple and efficient, simultaneously the requirement of forming temperature when reducing 3D printing Also forming cost is greatly reduced.

Detailed description of the invention

Fig. 1 is 1 glass powder DSC test result figure of embodiment.

Fig. 2 is 5 glass powder DSC test result figure of embodiment.

Fig. 3 is 14 glass powder DSC test result figure of embodiment.

Fig. 4 is 14 results of sample preparation figure of embodiment, and a is top view, and b is side view.

Specific embodiment

For a better understanding of the present invention, below with reference to the example content that the present invention is furture elucidated, but the present invention is not only It is limited only to the following examples.

Embodiment 1:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 8wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 800m/s, molding Temperature is room temperature, laser power 8W.

The PbO-B₂O₃-V₂O₅System glass, primary raw material include PbO, V₂O₅、B₂O₃, quality hundred shared by each component Score is 80%, 12%, 8%.

Table 1

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 1 each component of table₄VO₃And H₃BO₃Raw material for standby；

2) by weighed PbO, NH₄VO₃And H₃BO₃Raw material is fully ground in mortar, is melted after mixing, is melted Change 1100 DEG C -1200 DEG C of temperature, keeps the temperature 1-2 hours, obtain glass metal；

4) it will be sieved to obtain glass powder (i.e. PbO-B with 400 mesh sieve after glass breaking, grinding₂O₃-V₂O₅System glass Glass powder), DSC test result is 373.6-381.0 DEG C, as shown in Figure 1；

5) by obtained glass powder, the epoxy resin of 8wt% is mixed outside, is sufficiently mixed and (is obtained the glass for 3D printing Glass powder)；

It 6) is room temperature in forming temperature, scanning speed 800m/s, laser power is to use mixed glass powder under 8W The mode of selective laser sintering successively prints, can obtain complicated glassware.

Embodiment 2:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 9wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 800m/s, molding Temperature is room temperature, laser power 10W.

Table 2

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 2 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 368.6-370.3℃；

5) by obtained glass powder, the epoxy resin of 9wt% is mixed outside, is sufficiently mixed；

It 6) is room temperature in forming temperature, scanning speed 800m/s, laser power is under 10W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 3:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 10wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1000m/s, at Type temperature is room temperature, laser power 12W.

Table 3

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 3 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 362.7-366.2℃；

5) by obtained glass powder, the epoxy resin of 10wt% is mixed outside, is sufficiently mixed；

It 6) is room temperature in forming temperature, scanning speed 1000m/s, laser power is under 12W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 4:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 11wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1000m/s, at Type temperature is room temperature, laser power 10W.

Table 4

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 4 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 280.1-286.8℃；

5) by obtained glass powder, the epoxy resin of 11wt% is mixed outside, is sufficiently mixed；

It 6) is room temperature in forming temperature, scanning speed 1000m/s, laser power is under 10W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 5:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 12wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1000m/s, at Type temperature is room temperature, laser power 8W.

Table 5

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 5 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 279.9-285.6 DEG C, as shown in Figure 2；

5) by obtained glass powder, the epoxy resin of 12wt% is mixed outside, is sufficiently mixed；

It 6) is room temperature in forming temperature, scanning speed 1000m/s, laser power is under 8W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 6:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 11wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, at Type temperature is room temperature, laser power 10W.

Table 6

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 6 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 280.4-286.2℃；

It 6) is room temperature in forming temperature, scanning speed 1200m/s, laser power is under 10W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 7:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 10wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, at Type temperature is room temperature, laser power 8W.

Table 7

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 7 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 368.3-370.0℃；

It 6) is room temperature in forming temperature, scanning speed 1200m/s, laser power is under 8W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 8:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 9wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, molding Temperature is room temperature, laser power 12W.

Table 8

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 8 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 329.1-331.5℃；

It 6) is room temperature in forming temperature, scanning speed 1200m/s, laser power is under 12W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 9:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 8wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, molding Temperature is room temperature, laser power 14W.

Table 9

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 9 each component of table₄VO₃And H₃BO₃Raw material for standby；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 283.3-284.7℃；

5) by obtained glass powder, the epoxy resin of 8wt% is mixed outside, is sufficiently mixed；

It 6) is room temperature in forming temperature, scanning speed 1200m/s, laser power is under 14W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.

Embodiment 10:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 9wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1000m/s, molding Temperature is room temperature, laser power 14W.

Table 10

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 10 each component of table₄VO₃、H₃BO₃、Al₂O₃、SiO₂And Li₂CO₃Raw material It is spare；

2) by weighed PbO, NH₄VO₃、H₃BO₃、Al₂O₃、SiO₂And Li₂CO₃Raw material is fully ground in mortar, and mixing is equal It is melted after even, 1100 DEG C -1200 DEG C of fusion temperature, keeps the temperature 1-2 hours, obtain glass metal；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 291.7-292.1℃；

Embodiment 11:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 10wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, at Type temperature is room temperature, laser power 12W.

Table 11

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 11 each component of table₄VO₃、H₃BO₃、ZnO、CuO、MgO、SiO₂And Na₂CO₃Raw material for standby；

2) by weighed PbO, NH₄VO₃、H₃BO₃、ZnO、CuO、MgO、SiO₂And Na₂CO₃Raw material is sufficiently ground in mortar Mill, is melted, 1100 DEG C -1200 DEG C of fusion temperature after mixing, is kept the temperature 1-2 hours, is obtained glass metal；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 303.9-305.0℃；

Embodiment 12:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 11wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, at Type temperature is room temperature, laser power 12W.

Table 12

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 12 each component of table₄VO₃、H₃BO₃、ZnO、CuO、Al₂O₃, MgO and K₂CO₃Raw material for standby；

2) by weighed PbO, NH₄VO₃、H₃BO₃、ZnO、CuO、Al₂O₃, MgO and K₂CO₃Raw material is fully ground in mortar, It is melted after mixing, 1100 DEG C -1200 DEG C of fusion temperature, keeps the temperature 1-2 hours, obtain glass metal；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 295.8-297.2℃；

Embodiment 13:

A kind of glass powder for 3D printing, it is with PbO-B₂O₃-V₂O₅System glass powder is main material, is mixed outside The epoxy resin powder of 12wt%.The molding mode that 3D printing selects is selective laser sintering, scanning speed 1200m/s, at Type temperature is room temperature, laser power 12W.

Table 13

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 12 each component of table₄VO₃、H₃BO₃, ZnO, CuO, MgO raw material for standby；

2) by weighed PbO, NH₄VO₃、H₃BO₃, ZnO, CuO, MgO raw material be fully ground in mortar, after mixing It is melted, 1100 DEG C -1200 DEG C of fusion temperature, keeps the temperature 1-2 hours, obtain glass metal；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, DSC test result is 295.0-297.4℃；

Embodiment 14:

Table 14

Specific preparation process is as follows:

1) PbO, NH are weighed by mass percent shared by 14 each component of table₄VO₃、H₃BO₃、ZnO、CuO、MgO、Al₂O₃、SiO₂ And K₂CO₃Raw material for standby；

2) by weighed PbO, NH₄VO₃、H₃BO₃、ZnO、CuO、MgO、Al₂O₃、SiO₂And K₂CO₃Raw material is abundant in mortar Grinding, is melted, 1100 DEG C -1200 DEG C of fusion temperature after mixing, is kept the temperature 1-2 hours, is obtained glass metal；

4) it will be sieved to obtain glass powder with 400 mesh sieve after glass breaking, grinding, Glass Transition carried out to glass powder Temperature test, DSC test result are 295.2-300.0 DEG C, as shown in Figure 3；

It 6) is room temperature in forming temperature, scanning speed 1200m/s, laser power is under 12W, by mixed glass powder With the mode of selective laser sintering, successively prints, complicated glassware can be obtained.In order to test conveniently selection Simple bowl structure, as shown in Figure 4.

The bound of each raw material cited by the present invention and each raw material of the present invention, section value and technological parameter Bound, the section value of (such as temperature, time) can realize the present invention, embodiment numerous to list herein.

Claims

1. a kind of glass powder for 3D printing, which is characterized in that with PbO-B₂O₃-V₂O₅System glass powder is main material, outside Mix the epoxy resin powder of 8-12wt%；

The PbO-B₂O₃-V₂O₅System glass, main component include PbO, V₂O₅、B₂O₃, mass percent shared by each component Are as follows:

PbO 40%-80%,

V₂O₅8%-52%,

B₂O₃8%-12%；

Applied to 3D printing: being room temperature in forming temperature, scanning speed 800-1400m/s, laser power is to incite somebody to action under 8-14W The mode of the mixed glass powder selective laser sintering for 3D printing successively prints, can obtain glassware.

2. a kind of glass powder for 3D printing according to claim 1, which is characterized in that the PbO-B₂O₃-V₂O₅ System glass, which is characterized in that its component also includes Al₂O₃、SiO₂、R₂O, RO, mass percent shared by each component are as follows:

The R₂O is Li₂O、Na₂O、K₂One or more of O presses the mixture of any proportion, RO ZnO, CuO, MgO, BaO One or more of press any proportion mixture.

3. a kind of glass powder for 3D printing as described in claim 1, which is characterized in that its glass transition temperature Tg It is 279.9-381.0 DEG C.

4. a kind of glass powder for 3D printing as described in claim 1, which is characterized in that be applied to 3D printing: forming Temperature is room temperature, and scanning speed 800-1400m/s, laser power is under 8-14W, by the mixed glass for being used for 3D printing The mode of powder selective laser sintering successively prints, can obtain glassware.

5. a kind of preparation method of glass powder for 3D printing according to claim 1, it is characterised in that including as follows Step:

1) by mass percent shared by each component are as follows: PbO:40%-80%, V₂O₅: 8%-52%, B₂O₃: 8%-12% is weighed PbO、NH₄VO₃、H₃BO₃Raw material for standby；

2) by weighed PbO, NH₄VO₃、H₃BO₃Raw material is fully ground in mortar, is melted after mixing, fusion temperature 1100 DEG C -1200 DEG C, 1-2 hours are kept the temperature, glass metal is obtained；

3) glass metal is poured into graphite jig and is formed, the glass that casting obtains is placed in annealing furnace, at 300 DEG C -500 DEG C Annealing 1-2 hours, obtains transparent glass after cooling to room temperature with the furnace；

5) by obtained glass powder, the epoxy resin of 8-12wt% is mixed outside, is sufficiently mixed, obtain the glass for 3D printing Powder.

6. a kind of preparation method of glass powder for 3D printing according to claim 2, it is characterised in that including as follows Step:

1) by mass percent shared by each component are as follows: PbO:40%-80%, V₂O₅: 8%-52%, B₂O₃: 8%-12%, Al₂O₃: 0%-3%, SiO₂: 0%-5%, R₂O:0%-2%, RO:0%-10%；Weigh PbO, NH₄VO₃、H₃BO₃、Al₂O₃、SiO₂、 R₂CO₃With RO raw material for standby；The R₂O is Li₂O、Na₂O、K₂One or more of O presses the mixture of any proportion, and RO is One or more of ZnO, CuO, MgO, BaO press the mixture of any proportion；R₂O is introduced by carbonate；

2) weighed raw material is fully ground in mortar, is melted after mixing, 1100 DEG C -1200 DEG C of fusion temperature, Heat preservation 1-2 hours, obtains glass metal；