JPS59199538A - Preparation of glass material having three-dimensional network skeleton structure - Google Patents

Abstract

PURPOSE:To obtain a glass material having three-dimensional network skeleton structure and composed of complicately interconnected fine cells, by impregnating slurry of glass powder in an organic foam having spongy structure, and baking the obtained foam at a specific temperature. CONSTITUTION:Glass powder obtained by the pulverization of glass with conventional vibration ball mill, etc. to about <=50mu is slurried with water, and an organic foam having spongy structure and formed to a desired form is immersed in the slurry to effect the impregnation of the slurry in the foam. The impregnated foam obtained by this process is baked at a temperature between the strain point and the softening point of the glass powder. The baking can be carried out by using a conventional electrical muffle furnace. A glass material having three-dimensional network skeleton structure and composed of complicately interconnected fine cells can be obtained by this process.

Description

[Detailed Description of the Invention] (Industrial Applicability) The present invention has a three-dimensional network structure consisting of fine and continuous pores.
(Regarding the method for producing 1-case m-zo f↑ in the family Coranaceae.

(It's next technology)Ci) Conventionally, the method for producing glass 4A having a three-dimensional 4η structure + 11I structure is to use secondary processing after forming the glass product.
A method was considered to manufacture a three-dimensional 11-dimensional (14-dimensional) Karasui old model. However, with this method, the shape of the hole that could be fabricated was limited to a large diameter and straight hole. Because of this, it is almost impossible to carve fine or complicated holes into glass products. It was not possible to manufacture it.

(Objective of the Invention) The present invention solves the problems of the prior art 11j as described in 2.
It is an object of the present invention to provide a method for producing a glass abrasive material having an Ia structure.

(Structure of the Invention) The structure of the present invention to achieve the above object includes a step of slurrying crow powder, impregnating the slurry into an organic foam having a sponge structure, and a step of impregnating the slurry into an organic foam having a sponge structure. The resulting foam is fired at a temperature between the strain point and softening point of the glass powder.
This is a method for producing a glass abrasive material having Enraku+I/i construction.

JJ [・, Invention of the present application (, Nii 9, Filter production] jij: 51' description 1, next to each -I culm.

Slurrying Calas Powder - In the case of culms, the commonly used calas powder is the common soda lime nona X or crystallized calas fine powder.

These are made by forming noni into a slurry with water in a normal vibrating ball mill to a particle size of 50++ or more. If an organic solvent is added as a binder during slurrying, it has the effect of allowing the glass powder slurry to be thoroughly impregnated into the foam in the next step.

Slurry to the sea♀:j! In the opening ↑d contained in the f1 cabin light foam made of l'/'l structure, a commonly used organic foam 7, i1 flexible polyurethane foam 1, which is generally commercially available, is used. You can use it. By the above process-jri! # In the slurry of horn powder, 1111 'J-141 was formed into the desired shape! By dipping the N foam, the slurry is dipped into the organic foam having a spongy structure. - In the slurry or foam in the immersion process - ＼ - 1 minute - If the foam is not immersed uniformly, remove it from the slurry and repeat the immersion process again to form an organic foam with a spongy structure. It is necessary to soak the glass powder slurry thoroughly and evenly into the body.

In the case of firing the foam thus obtained at a temperature between the strain point and the softening point of the crow powder, a conventional electric pine kiln can be used.

The firing temperature is expressed as a temperature between the strain point and the softening point of the glass powder, because if the glass powder is fired at a temperature below the strain point, the glass powder will not vitrify and the glass will have a three-dimensional network of narrow passages. If an abrasive cannot be obtained and the glass powder is fired at a temperature below its softening point, the glass powder will either become vitrified or soften and sag during firing, resulting in a three-dimensional network of narrow channels consisting of continuous pores. The theory is that it is not possible to obtain glass with a structure.

The temperature between the above strain point and softening point varies depending on the glass powder used; - around 700°C for ordinary soda-lime glass powder, and 700°C to 700°C for crystallized glass powder depending on the type of crystallized glass. The temperature is 1200°C. Is it okay to keep the temperature increase rate constant? At around 1100'C, 3 [] culms of 1 yen growth +'- (71' + if it goes through 'a)' own machine 'E' made of 17i cotton. (This is preferable because it allows the foam to be efficiently combusted into soot. Furthermore, if the final slurry contains a binder of 11 solvents, 2 (30 minutes before and after IOC) By adding two culms, the organic solvent can be vaporized quickly, which is preferable.

Examples of the present invention will be shown below.

(Example 1) Sin, 72.5 (wt%) l\shi03
2.2 (/)CaO11,3(”
) Mg0 0.25 ('' )Na, (,)
12.4 (”) kzol, 3 ()
I) Fe203 0.05 ("> - 1-1, prepared as described above, sorter lime glass powder 50g adjusted to a particle size of 25u or less, mixed with 10g water.
Use a footstool and add the slurry (Hita. In this slurry,
30 x 30>, 15mm plus flexible polyester
i7 L/ Evening: / -, 1:4-mu (product name, Barley) Scots 1dlll-08, F'rysiston tire (F @ commercially available) was inserted into the urethane foam.
\Impregnated with slurry. The foam thus obtained was heated to 650°C in an electric Matsufuru furnace at a heating rate of 100'C/15 minutes and held for 30 minutes.

As a result, it was possible to obtain a glass material having a three-dimensional network-like channel structure consisting of one fine and complicated continuous pore having the characteristics shown in the table.

(Example 2) S102 75.0 (weight%) l\I, 0
3 G, 0 (” ) CaOO, 8 (”
) Mg00.8<・ノ) IkuzO2,0< ” )8203
2.0 (l)Li2O11,4('')l\5203 2.0 (-l)'' 50g of crystallized glass powder, which has the composition shown below and has a particle size of 2 Cht or less, is mixed with 10g of water and liquid paraffin. I[]
P! - 74 Rally - 1 hit on Kisho I), Example 1, J=
In this way, 74
7. The foamed material was heated in a 1()0
℃ / 15 minutes increase at 1 plate speed, heat to 200℃ and work for 30 minutes ]) , same ( )te , heat to 'I 00''C: and hold for 30 minutes, further heat to 800C. It was held for 30 minutes.

This Itokoka is a member of one temple and one student as shown in Table 1.
A three-dimensional network skeleton consisting of 11 consecutive pores (4417)
Glass 4A class with 14 structures a was created in H47.

(Effect of the invention) As described above, according to the present invention, (jt=Next technique 11:
We were able to manufacture a three-dimensional mesh 1JRaku (14-shaped structure) consisting of fine and complicated continuous holes, which could not be obtained with other methods.
lt! It is possible to use it through a medium, surface heat filter, etc. Furthermore, since the crow powder used in the present invention is not equally limited, the effective 1
It has the effect of making it possible to improve the flow of rivers and rivers, and will greatly contribute to the development of industry.

Patent applicant: Ishizuka 6 Uchiko Stock Tee (Kai T)

Claims (1)

[Claims] ■ In the process of slurrying the glass powder, there is a step in which the slurry is impregnated into an HR foam made of sponge + R&S; The manufacturing method for glass, which has a characteristic three-dimensional network skeleton structure, consists of a firing process at a temperature between 4 and 4.