JPH04224913A - Simple manufacture for resin concrete - Google Patents

Abstract

PURPOSE:To simplify the working process heretofore available and make the manufacture of resin concrete easy by vibration filling a bonding material and aggregates in a mold. CONSTITUTION:A liquid bonding material 6 of low viscosity is dropped by the amount to be filled into a mold 2 of good sealing properties fixed on a vibration table 1. Aggregates are divided into rough aggregates 3, medium aggregates 4 and fine aggregates 5, and first only the rough aggregates 3 are filled in the mold 2 while being vibrated. Then the medium aggregates 4 are filled into spaces among the filled rough aggregates 3 and bonding material forming sections among the filled rough aggregates 3 while being vibrated. Lastly, the fine aggregates 5 are filled in the spaces among the filled medium aggregates 4 and bonding material filling sections among the filled medium aggregates 4. The liquid level of the bonding material is risen up gradually while filling the medium material 4 into the rough aggregates 3 and the fine aggregates 5 into the intermediate aggregates 4 respectively, and the upper surface level of the filling aggregates is in conformity with the liquid level of the bonding material simultaneously with the completion of filling of the last fine aggregates 5.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple method for producing resin concrete, which is a new material for use as a structural material for machine tools.

0002

[Prior Art] The conventional manufacturing process for resin concrete generally involves kneading aggregate and a binder in a stirrer, and then molding the mixture by pouring it into a mold, similar to the manufacturing process for cement concrete. In order to increase the rigidity of resin concrete, we first fill it with aggregate such as rock, sand, alumina, zirconia, silicon carbide, and silicon nitride, and then fill it with epoxy resin, phenol, etc. There is already a manufacturing method that involves filling with a binder such as resin.

0003

[Problem to be solved by the invention] Recently, the application of resin concrete has been considered as a new material with significantly different thermal and mechanical properties compared to conventional materials for the high precision of machine tools. It is the material. Conventionally, as described above, the manufacturing process is the same as that used for manufacturing cement concrete. However, in this case, work is required such as kneading the aggregate and binder, transporting it from the mixer to the mold for kneading, pouring the paste resin concrete into the mold, and cleaning the equipment used. It required time and effort.

[0004] In addition, in the latter method of the conventional manufacturing process, in which aggregate is first filled and then a binding material is filled, the voids between the already filled aggregates are filled with binding material such as epoxy resin or phenolic resin. When filled with materials, air may be drawn in, the binding material may not penetrate well into the contact areas between the aggregates, or the binding material may be filled unevenly, resulting in approximately 20% of the unbonded area, resulting in poor rigidity and strength. It had the disadvantage of a significant decrease in the

[0005] In view of the above points, the present invention aims to provide a simple method for manufacturing resin concrete that can greatly reduce the time and effort required for manufacturing resin concrete, and further increase rigidity and strength. It is something.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the method of the present invention uses rock, sand, alumina, zirconia, silicon carbide, silicon nitride, etc. as aggregates, and also uses epoxy resin,
In resin concrete manufactured using phenolic resin as a binder, a low-viscosity liquid binder is dripped into a mold with good sealing properties, and the aggregate is made finer than coarse aggregate according to the particle size. The aggregate is classified into several types, and the coarse aggregate is sequentially filled into the mold while being vibrated from fine to fine aggregate. After that, the voids between the previously filled aggregates and the binding material filling areas between the previously filled aggregates are filled while being vibrated, and the coarse aggregate is filled with finer aggregate in sequence. The liquid level of the binder gradually rises, and at the same time as the filling of the last aggregate is completed, the upper surface of the filled aggregate and the level of the liquid binder match.

[0007]

[Example] An embodiment of the method of the present invention will be explained below based on the drawings. Figs. 1 to 3 are diagrams showing an embodiment of the manufacturing process according to the method of the present invention, and 1 in the figure indicates an excitation table,
2 is a mold for filling with good airtightness fixed on the vibration table 1; 3 is coarse aggregate; 4 is medium aggregate; 5 is fine aggregate; 6 is mold 2.
A binding material of low viscosity liquid such as epoxy resin or phenol resin is dropped inside, and 7 is a vibration motor of the vibration table 1.

Next, the manufacturing process of the present invention will be explained based on the drawings. A mold 2 for filling with good airtightness is mounted and fixed on the vibration table 1, while rock, sand, alumina, etc.
Aggregates such as zirconia, silicon carbide, and silicon nitride are used as coarse aggregate 3.
, medium aggregate 4, fine aggregate 5, and other aggregates are classified into several types, such as coarse aggregates and finer aggregates, depending on the particle size. Then, an appropriate amount of the binder 6 is dropped into the mold 2, and the coarse aggregate 3 is filled into the mold 2 containing the binder 6 while being vibrated (as shown in Fig. 1). . Next, the voids between the filled coarse aggregates 3 and the coarse aggregates 3
The middle aggregate 4 is filled into the bonding material filling part in between while vibrating (
(shown in Figure 2). Finally, the gap between the middle aggregates 4 and the middle aggregates 4
The fine aggregate 5 is filled into the binding material filling part between the two while vibrating it (
(shown in Figure 3).

While filling the coarse aggregate 3 with the medium aggregate 4 and the medium aggregate 4 with the fine aggregate 6, the liquid level of the binder 6 gradually rises until the last aggregate is filled. At the same time as completion, the upper surface of the filler aggregate and the liquid level of the binding material 6 are aligned.

0010

[Effects of the Invention] According to the method of the present invention, after the binder is filled into the mold, it is filled while vibrating sequentially from aggregate with a large particle size to aggregate with a small particle size. It penetrates well into the contact areas between materials and does not leave unbonded areas. Therefore, rigidity and strength are increased.

[0011] Also, since the aggregate is filled while being vibrated in the mold, unlike the conventional method, the aggregate and binder are kneaded and moved from the stirrer for kneading to the mold during the production of resin concrete. This is a useful invention because it simplifies the work of pouring paste-like resin concrete into a mold and cleaning the equipment used, making it extremely easy to manufacture resin concrete.

[Brief explanation of the drawing]

FIG. 1 is a manufacturing process diagram showing a state in which a bonding material is dropped into a mold fixed on a vibration table and then coarse aggregate is filled by vibration in the manufacturing process of the method of the present invention.

FIG. 2 is a manufacturing process diagram showing a state in which medium aggregate is vibrated and filled into the gaps between coarse aggregates and the binding material filling area between the coarse aggregates in the manufacturing process of the method of the present invention.

FIG. 3 is a manufacturing process diagram showing a state in which fine aggregate is vibrated and filled into the gaps between medium aggregates and the binding material filling area between medium aggregates in the manufacturing process of the method of the present invention.

[Explanation of symbols]

1 Vibration table 2 type 3 Coarse aggregate 4 Medium aggregate 5 Fine aggregate 6. Binding material

Claims (1)

[Claims] Claim 1: In resin concrete manufactured using rock, sand, alumina, zirconia, silicon carbide, silicon nitride, etc. as an aggregate, and using an epoxy resin, phenol resin, etc. as a binder, a mold with good sealing properties is provided. At the same time, a low viscosity liquid binder is dropped in the filling amount, and the aggregate is classified into several types from coarse to fine aggregate according to the particle size, and the coarse aggregate to fine aggregate is sequentially placed into the mold. Filling is carried out while vibrating, and during filling, the aggregate to be filled later is filled with the aggregate to be filled first, and the voids between the aggregates filled earlier and the bones filled earlier are filled. The binder filling section between the materials is filled with vibration, and the binder liquid level gradually rises as the coarse aggregate is filled with finer aggregate, and as soon as the last aggregate is filled, A simple method for producing resin concrete, characterized in that the upper surface of filled aggregate and the liquid level of a liquid binder match.