JPS63152588A - Unit panel of panel type water tank and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention is for storing pure water, ultrapure water, etc. as cleaning water, which is mainly used in semiconductor manufacturing factories. The present invention relates to a unit panel of a panel type aquarium and a manufacturing method thereof.

(Prior art) The unit panels of a panel type aquarium are usually made of IIN reinforced plastic (hereinafter referred to as FRP), steel plate, stainless steel, etc. Of these, the overwhelming majority of unit panels are made of FRP. It was also mainly used for drinking water.

Conventionally, the manufacturing method for pure water/ultra pure water liquid tanks, highly corrosion resistant liquid tanks, highly heat resistant liquid tanks, etc. has been to manufacture cylindrical or prismatic water tanks made of steel plates, plastics, etc. 2M to 31
Proposals included fluororesin sheets of approximately 1W being glued together at room temperature and welding the seams between the sheets, coating with fluororesin paint, and laminating sheets of several tens of micrometers.

(Problems to be Solved by the Invention) <Problems with the Prior Art> FRP unit panels are made using a heat press method, have good moldability, are relatively corrosion resistant, and are heat resistant up to about 80 degrees. Therefore, it is suitable for hot water storage tanks and drinking water storage tanks, etc., but it is not suitable for liquid tanks that store liquids that require high corrosion resistance or high heat resistance of approximately 100 degrees or more. It was said that However, although the FR and P unit panels themselves had poor heat resistance in the parts that were in direct contact with the liquid, they had a high degree of thermal deformation and were extremely strong in tensile strength and the like.

The conventional manufacturing method for the former method is to adhere a fluororesin sheet to the aquarium and then weld the seams of this sheet, or the fluororesin sheet itself is difficult to adhere or weld in this way, and manual processing requires heat. Coupled with the difficulty of crimping, the sheet easily peeled off, making the usage unstable and extremely dangerous.

In addition, in the conventional manufacturing method of the latter, the thickness of the laminated coating or sheet is extremely thin, which means that the heat resistance is poor, and there is a risk of damage, cracks, water penetration, etc., making it unstable and extremely dangerous to use. there were.

<Technical Issues> Therefore, the present invention was created in view of the above-mentioned problems, and while making full use of the strong strength that is an advantage of FRP, it also takes advantage of the heat resistance and heat resistance that are the advantages of fluororesin. Taking full advantage of its excellent corrosion resistance, we have made it most suitable for liquid tanks with high heat resistance of approximately 100 degrees or more, liquid tanks with high corrosion resistance, liquid tanks with pure water and ultrapure water, etc. To provide a unit panel of a panel-type aquarium that reliably prevents separation, damage, cracking, etc., and makes the usage condition stable and extremely safe, and a method for manufacturing the same.

[Structure of the Invention] (Means for Solving the Problems) One of the present inventions is to solve the problems of the conventional art by providing a joint piece for aquarium assembly on the peripheral edge of the rectangular sheet main plate. A thermoplastic fluororesin sheet with a thickness of approximately 0.3 a or more is formed, with each sheet folded toward the back side, and the main sheet plate corresponds to the main plate of this sheet and the back side of each joint piece. A technical measure was taken to adhere the surface of a panel body made of thermosetting FRP, in which joint pieces for assembling an aquarium were respectively folded toward the back side of the peripheral edge of a rectangular panel main plate. Another aspect of the present invention is that approximately 0.
On the back side of a thermoplastic fluororesin sheet with a thickness of 3s or more! lN piece, fiber cloth, nonwoven fabric, powder, granular solid,
A physical process or chemical process of thermocompression bonding a medium such as another resin material that has an affinity for the fluororesin and FRP;
A step of molding this sheet into a predetermined shape, and a lower mold whose upper surface is formed in approximately the same shape as the front side of the sheet, and an upper mold whose lower surface is formed in approximately the same shape as the back side of the sheet are vertically moved. a step of raising the upper mold; a step of placing the front side of the sheet on the lower mold; and a step of placing a molding material, which is the raw material for the FRP panel body, on the back side of the main plate of the sheet. a step of sandwiching a medium such as an adhesive between the molding material and the sheet in the case of the chemical treatment, a step of lowering the upper mold and pressing the sheet while heating, and a step of pressing the molding material with the sheet while heating; We took technical measures to manufacture the product from a process of releasing it from the mold and allowing it to cool naturally.

(Function) The present invention utilizes the above-mentioned technical means to fully utilize the strength of FRP, which is an advantage of the panel body.
The strength of the panel body as an aquarium container is maintained, and the fluororesin sheet has excellent heat resistance and corrosion resistance. To enable the inner surface of each unit panel to be covered with a sheet when the pieces are joined by sandwiching a fluororesin gasket between the pieces.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in FIG. 1, the unit panel A according to the present invention has a main sheet plate 1 having a square shape, a rectangular shape, etc., and a joint piece 2 for assembling a water tank on the peripheral edge of the sheet main plate 1 on the back side (in the figure, on the bottom side). ) is formed into a thermoplastic fluororesin sheet 3 with a thickness of approximately 0.3 cm or more, each folded at approximately right angles to The back side of each joint piece 2 (
A joint piece 5 for assembling an aquarium is folded approximately at right angles toward the back side (lower side in the figure) on the peripheral edge of the rectangular panel main plate 4 corresponding to the sheet main plate 1 (inner side in the figure). The surface of the panel body 6 made of thermosetting FR, P is adhered.

Therefore, this unit panel A is the seat main plate 1 of the seat 3.
, and the reinforcing portion 7 is shown in the central portion of the panel main plate 4 of the panel body 6, excluding the peripheral portion thereof, to be slightly expanded toward the back side, but the answer is not limited to this. As shown in FIG. 2, even if the unit panel B is made such that the reinforcing part 7 is slightly expanded toward the surface side in the center part of the sheet main plate 1 of the sheet 3 and the panel main plate 4 of the panel body 6, excluding the peripheral part slightly. good. Further, as shown in FIG. 3, a unit panel in which reinforcing portions 7 are provided on the sheet main plate 1 of the sheet 3 and the panel main plate 4 of the panel body 6 so as to protrude gradually toward the front surface from the opposing side edges toward the center. You can also set it to C. Moreover, this reinforcing part 7 is not necessarily necessary unless strong strength is required, and as shown in FIG. It's okay. Furthermore, each of the unit panels A.

Several bolt insertion holes 8 are drilled at appropriate intervals in each of the joining pieces 2.5 of the sheets 3 and panel body 6 of B, C, and D for sequential joining when assembling the aquarium.

Further, although the sheet 3 is illustrated in such a manner that the back surfaces of the sheet main plate 1 and the joint piece 2 are adhered to all the surfaces of the panel main plate 4 and the joint piece 5 of the panel body 6, the present invention is not limited to this, and when assembling the aquarium. Sheet 3 of each unit panel A, B, C, D
And when the joint pieces 2.5 of the panel body 6 are joined to each bolt insertion hole 8 via bolts with a fluororesin gasket sandwiched between each joint piece 2.5, the internal liquid does not come into direct contact with the panel body 6 of the FRPIJ. The length, that is, the length of the sheet 3 in the direction of the distal end of the joint piece 2 may be about half.

On the other hand, to explain one manufacturing method of the unit panel according to the present invention, first, a sheet 3 made of thermoplastic fluororesin with a thickness of about 0.3 cm or more is heated to a predetermined temperature, and the back side of the sheet 3 is heated. A so-called physical treatment such as thermo-compression bonding of media such as fiber pieces, miscellaneous cloth, non-woven fabric, powder, granular solids, fluororesin and other resin materials that have an affinity for FRP, or a physical treatment of the panel body 6 The sheet 3 is chemically treated to facilitate adhesion to the FRP, and the bonding pieces 2 are folded approximately at right angles toward the back surface of the sheet 3 on the peripheral edge of the rectangular sheet main plate 1, as shown in FIG. The main sheet plate 1 is molded into a predetermined shape by a vacuum forming method, a pressure forming method, a press method, etc. so that the reinforcing portion 7 is expanded toward the back side in the central portion of the sheet main plate 1 excluding the peripheral edge portion.

Next, as shown in FIG.
An upper mold 10 formed in substantially the same shape as the back surface side of is placed above and below, and this upper mold 10 is raised. Thereafter, the front side of the sheet 3 is placed on the lower mold 9 as shown in FIG. Subsequently, as shown in FIG. 8, a molded material (SMC), which is the raw material for the panel body 6 made of FRP, is superimposed on the back surface of the sheet main plate 1 of the sheet 3. In this step, if the back side of the sheet 3 is not physically treated in the first step but only chemically treated, there is an affinity for fluororesin and FRP between the molded material of the panel body 6 and the sheet 3. Insert a medium such as glass IIN or adhesive to strengthen the adhesion. Then, as shown in FIG. 9, the upper mold 10 is lowered and pressed while heating, and then the molded product is released from the mold and allowed to cool naturally as shown in FIG. Unit panel 8 is completed.

Therefore, as a method for manufacturing a unit panel according to the present invention,
Although the unit panel A as shown in FIG. 1 is explained and illustrated, the answer is not limited to this, and the unit panel B as shown in FIG. 2 or the unit panel C as shown in FIG. Of course, unit panels D as shown in FIG. 4 can also be manufactured in the same manner as described above, and the same effects can be obtained.

[Effects of the Invention] As mentioned above, the unit panels A, B, C, and D of the present invention have a thickness of approximately 0.3 mm or more and are thermoset on the back side of the sheet 3 made of thermoplastic fluororesin. Since the surface of the panel body 6 made of natural FRP is adhesively bonded, the strength of the FRP panel body 6, which is an advantage of FRP, is fully utilized, and the panel body 6 has the strength as an aquarium container. In addition, by taking full advantage of the excellent heat resistance and corrosion resistance that are the advantages of the fluororesin of the sheet 3, each unit panel A and B is used when assembling the aquarium.

When each unit panel A,=
, C, o can be covered with sheet 3, so approximately 100
liquid tank with high heat resistance above 30°F, liquid tank with high corrosion resistance, pure water
Ideal for ultrapure water liquid tanks, etc.

Moreover, the method for manufacturing unit panels A, B, C, and D of the present invention is such that fiber pieces, lIa cloth, nonwoven fabric, A physical or chemical treatment process of thermocompressing a medium such as powder, granular solids, fluororesin and other resin materials that have an affinity for FRP, and a φ process of molding this sheet 3 into a predetermined shape. A lower mold 9 whose upper surface is formed in approximately the same shape as the front surface side of the sheet 3 and an upper mold 10 whose lower surface is formed in approximately the same shape as the back surface side of the sheet 3 are placed one above the other. A step of raising the mold 10, a step of placing the front side of the sheet 3 on the lower mold 9, and a step of placing a molding material, which is the raw material for the FRPtj panel body 6, on the back surface of the sheet main plate 1 of the sheet 3. a step of sandwiching a medium such as an adhesive between the molding material and the sheet 3 in the case of the chemical treatment, and a step of overlapping the molding material and the sheet 3; a step of lowering the upper mold 10 and pressing the sheet 3 while heating; By manufacturing this molded product through the process of releasing it from the mold and allowing it to cool naturally, there are no welded seams in the sheet unlike in the past, so peeling of the sheet 3 can be reliably prevented, and the sheet 3 made of fluororesin can be reliably prevented from peeling. Since the thickness of the tube is approximately 0.3 mm or more, damage, cracking, water penetration, etc. can be reliably prevented, so the condition of use is stable and extremely safe.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway perspective view of a unit panel according to the present invention, and FIGS.
The figures are cross-sectional views showing other embodiments of the reinforcing part. Fig. 2 shows one expanded toward the surface side of the sheet and panel main body, Fig. 3 shows a reinforcing part protruding toward the surface side of the sheet and panel main body, and The figure shows one without a reinforcing part, and Figures 5 to 10 are cross-sectional views showing the manufacturing method of the unit panel according to the present invention. The process of raising the mold, Fig. 7 is the process of placing the sheet on the lower mold, Fig. 8
The figure shows the process of overlapping the molding material, which is the raw material for the panel body, on the back side of the sheet, the process of thermocompression bonding the sheet and the panel body, and the process of releasing the molded product in FIG. 10. A, B, C, D...unit panel, 1...sheet main plate, 2...joint piece, 3...sheet, 4...panel main plate, 5...joint piece, 6...・Panel body, 7... Reinforcement part, 8... Bolt insertion hole, 9.
...lower mold, 10...upper mold. Patent applicant Sayama Seisakusho Co., Ltd. Figure 1 Figure 2 Figure 4 Figure 3

Claims (1)

[Claims] 1. A sheet made of thermoplastic fluororesin and having a thickness of approximately 0.3 mm or more and having joint pieces for assembling an aquarium folded toward the back side of the peripheral edge of a rectangular sheet main plate. The main sheet plate and the back side of each joint piece of this sheet are heated so that joint pieces for aquarium assembly are folded toward the back side of the peripheral edge of the rectangular main panel plate corresponding to the main sheet plate. A unit panel for a panel-type aquarium, characterized in that the surface of the panel body made of hardening FRP is bonded. 2. On the back side of the thermoplastic fluororesin sheet with a thickness of approximately 0.3 mm or more, fiber pieces, fiber cloth, nonwoven fabric, powder, granular solids, and other materials that are compatible with the fluororesin and FRP are attached. A step of physically or chemically bonding a medium such as a resin material by thermocompression, a step of molding this sheet into a predetermined shape, and a lower mold whose upper surface is formed in approximately the same shape as the front surface side of the sheet, and the lower surface thereof. a step of placing upper molds formed in substantially the same shape as the back side of the sheet above and below, raising the upper mold, and placing the front side of the sheet on the lower mold, A step of placing a molding material, which is a raw material for the FRP panel body, on the back side of the main sheet plate of the sheet, and inserting a medium such as an adhesive between the molding material and the sheet in the case of the chemical treatment. A method for producing a unit panel for a panel-type aquarium, comprising the steps of stacking them together, lowering an upper mold to press them together while heating, and releasing the molded product and allowing it to cool naturally.