CN112642683A

CN112642683A - Method for spraying glass 3D printer panel based on PEI powder

Info

Publication number: CN112642683A
Application number: CN202011547141.7A
Authority: CN
Inventors: 蒋明成
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-04-13

Abstract

The invention discloses a method for spraying a glass 3D printer panel based on PEI powder, which comprises the following steps: step 1: at normal temperature, firstly, making the glass into corresponding specifications; step 2: grinding PEI (polyetherimide) powder by a grinder and filtering; and step 3: uniformly spraying PEI (polyetherimide) powder after grinding and filtering on one surface of glass; and 4, step 4: carrying out heat treatment on the sprayed glass; and 5: carrying out scratch resistance test on the glass after heat treatment; adopt above-mentioned scheme, PEI (polyetherimide)) powder glass prints the panel and can solve the defect of the unevenness of 3D printer hot bed, need not the rubber coating again and can bond 3D printing consumables commonly used on printing the panel, effectively solves the problem that sticks up the limit that other panels can meet and the coating drops the problem easily and prolongs 3D printer panel life-span, from saving user's time and cost in the long run.

Description

Method for spraying glass 3D printer panel based on PEI powder

Technical Field

The invention belongs to the field of 3D printing, and particularly relates to a method for spraying a glass 3D printer panel based on PEI powder.

Background

The panel of the existing glass 3D printer is made of high-temperature silk-screen printing (lattice glass-toughened glass material) or ordinary toughened glass, the first layer of the printing consumable can be well adhered to the panel only by coating glue on the glass before printing, and the coating of the lattice glass of the high-temperature silk-screen printing has the defects that the service life of the silk-screen printing layer is short and the coating is easy to fall, so that the defects in the prior art are overcome and need to be improved.

Disclosure of Invention

The invention provides a method for spraying a glass 3D printer panel based on PEI powder, which solves the problems.

In order to solve the above problems, the technical scheme provided by the invention is as follows: a method for spraying a glass 3D printer panel based on PEI powder comprises the following steps:

step 1: at normal temperature, firstly, making the glass into corresponding specifications;

step 2: grinding PEI (polyetherimide) powder by a grinder and filtering;

and step 3: uniformly spraying PEI (polyetherimide) powder after grinding and filtering on one surface of glass;

and 4, step 4: carrying out heat treatment on the sprayed glass;

and 5: the glass after heat treatment was subjected to a scratch resistance test.

Preferably, the glass is a high borosilicate glass.

Preferably, in step 2, the milled PEI is filtered through a 80 mesh screen.

Preferably, a glass spraying pretreatment process is further provided after the step 1 and before the step 2, and the method comprises the following specific steps:

step 11: placing the glass with corresponding specification into a treatment tank, and removing oil stains and dust on the surface of the glass by using a stain remover in the treatment tank;

step 12: cleaning the glass by clear water again;

step 13: the mixed liquid of zinc phosphating agent and sodium nitrite is sprayed on the surface of the glass to passivate and phosphatize the glass.

Step 14: cleaning the glass by clear water again;

step 15: and drying the decontaminated glass by using a constant temperature oven.

Preferably, the specific method of step 3 is as follows:

step 31: spraying PEI (polyetherimide) powder after grinding and filtering on the surface of the glass by using an electrostatic powder spraying machine;

step 32: and recovering the fallen powder through a spraying room with a powder recovery function.

Preferably, the specific method of step 4 is as follows:

step 41: fixing the glass sprayed with the PEI powder through a jig, and then pushing the glass into an oven;

step 42: the heating temperature is between 180 ℃ and 190 ℃; the incubation time is 30 to 60 minutes.

Preferably, after the high temperature treatment of step 4, the scratch resistance test is performed after cooling at normal temperature.

Compared with the prior art, the beneficial effects are that, adopt above-mentioned scheme, PEI (polyetherimide)) powder glass prints the panel and can solve the defect of the unevenness of 3D printer hot bed, need not the rubber coating again and can bond 3D printing consumables commonly used on printing the panel, effectively solves the problem that sticks up the limit that other panels can meet and the coating drops easily and prolongs 3D printer panel life-span, from saving user's time and cost in the long run.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to specific examples. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "fixed," "integrally formed," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

One embodiment of the invention is:

step 1: under normal temperature (please note that there is special requirement here), make the glass into 3 x 310mm specification;

step 2: the glass is placed in a treatment tank, and oil stains and dust on the surface of the glass are removed through a stain remover.

And step 3: the surface of the glass is awakened and sand-blasted, the adhesive force of the surface of the glass is increased,

And 4, step 4: the decontaminated glass is cleaned by clear water, so that the surface of the glass is ensured to be clean;

and 5: cleaning the passivated and phosphatized glass by clear water again;

step 6: drying the glass in the step 5 by using a drying oven to ensure that no water mark exists on the surface of the glass;

and 7: spraying PEI (polyetherimide) powder after grinding and filtering on the surface of the glass by using an electrostatic powder spraying machine;

and 8: fixing the glass sprayed with the PEI powder through a jig, and then pushing the glass into an oven;

and step 9: the heating temperature of the oven is 300 to 400 ℃; the incubation time is 30 to 60 minutes.

Step 10: after the high-temperature treatment in the step 9, placing the glass outdoors for cooling;

step 11: and carrying out scratch resistance test on the product.

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. The method for spraying the glass 3D printer panel based on PEI powder is characterized by comprising the following steps:

step 2: grinding PEI (polyetherimide) powder by a grinder and filtering;

and 4, step 4: carrying out heat treatment on the sprayed glass;

2. The method for spraying a glass 3D printer panel based on PEI powder as claimed in claim 1, wherein in step 2, the milled PEI is filtered through a screen with a mesh size of 80 mesh.

3. The method for spraying the glass 3D printer panel based on the PEI powder as claimed in claim 1, wherein a glass spraying pretreatment process is further provided after the step 1 and before the step 2, and the method comprises the following specific steps:

step 12: cleaning the glass by clear water again;

step 13: the mixed solution of zinc phosphating agent and sodium nitrite is sprayed on the surface of the glass to passivate and phosphatize the glass;

step 14: cleaning the glass by clear water again;

4. The method for spraying a glass 3D printer panel based on PEI powder as claimed in claim 1, wherein the specific method of step 3 is as follows:

5. The method for spraying a glass 3D printer panel based on PEI powder as claimed in claim 1, wherein the specific method of step 4 is as follows:

6. The method for spraying a glass 3D printer panel based on PEI powder as claimed in claim 5, wherein the scratch resistance test is performed after cooling at normal temperature after the high temperature treatment of step 4.