JP2015147364A - Method for laminating thermoplastic resin plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamination method and a lamination structure capable of improving joint strength between different materials to be laminated and sealability, when a thermoplastic resin plate is laminated on the surface of the different material from that of the plate.SOLUTION: A method for laminating a thermoplastic resin plate 1 on a base material 2 having a different material from that of the plate 1 includes fixing an anchor member 3 to the base material, laminating the thermoplastic resin plate 1 on the base material 2 in a state in which the anchor member 3 is exposed, and filling the periphery of the exposed of the anchor material 3 with a molten resin 5 having the same material as that of the thermoplastic resin plate 1.

Description

  The present invention relates to a method for laminating a thermoplastic resin plate on different materials.

  In general, tanks made of concrete or metal used in chemical fields such as chemical plants, semiconductor manufacturing equipment, bio-related, water and sewage, agricultural water, food fields, fisheries industry, etc. are waterproofed on their walls, or In order to suppress corrosion and damage due to chemicals, industrial wastewater, etc., a lining sheet is pasted to form a laminated structure.

  As a method for laminating lining sheets in this way, for example, a synthetic resin water leakage prevention sheet is fixed to a concrete wall by anchor driving from above, and the exposed anchor head and its periphery are heated and melted with synthetic resin. A method of coating with an object has been proposed (see Patent Document 1). In addition, for example, a method of fixing a corrosion-resistant panel to a concrete frame with anchor bolts and covering the exposed bolt head with a cap (see Patent Document 2), a countersunk screw whose seating surface is covered with a thermoplastic resin, A method of fixing a waterproof member and solvent-sealing or heat-sealing the thermoplastic resin and the waterproof member has been proposed (see Patent Document 3).

Japanese Patent Laid-Open No. 10-280724 JP 2001-220811 A JP 2006-291638 A

  However, in the methods described in Patent Document 1 and Patent Document 2, since the surface of the water leakage prevention sheet or the corrosion prevention panel is sandwiched and fixed by the heads of the anchor bolts, the water leakage prevention sheet or the corrosion prevention panel and the concrete are fixed. There was a problem that the bonding strength between the laminated structures called walls was weak. In addition, the head of the anchor bolt protruding from the surface of the water leakage prevention sheet or corrosion prevention panel and its surrounding area are covered with a heated melt or cap, so the finished surface is not flat and obstructs the flow of fluid. Then, there was a problem that garbage was collected and that it looked bad. Also in the method described in the cited document 3, since the seat surface of the countersunk screw is solvent-sealed or heat-sealed to the waterproof member, the joint between the countersunk screw and the waterproof member is weak, and the countersunk screw head is waterproof. The finished surface did not become flat because it protruded from the surface of the member. Furthermore, since the bolt head and the countersunk screw head protruding on the sheet surface are covered with the covering material, there is a problem that the adhesion between the sheet and the covering material is poor, that is, the sealing property is insufficient.

  The present invention has been made in view of the above-described problems of the prior art. When a thermoplastic resin plate is laminated on the surface of a dissimilar material, the bonding strength and sealability between the dissimilar materials to be laminated are improved. It aims at providing the lamination method of the plate made from a thermoplastic resin which can be improved.

  Therefore, the present invention provides a method of laminating a thermoplastic resin plate on a base material made of a material different from that of the thermoplastic resin plate, wherein an anchor member is fixed to the base material, and the thermo member is exposed while the anchor member is exposed. A fixing point for laminating a plate made of plastic resin on the base material, filling the molten resin of the same material as the thermoplastic resin plate around the exposed anchor member, and fixing the plate made of thermoplastic resin and the base material It has the 1st characteristic to have.

  Further, in a method of laminating a thermoplastic resin plate on a base material made of a material different from that of the thermoplastic resin plate, an undercut portion is formed in the base material, and the thermoplastic resin is in a state where the undercut portion is exposed. A fixing point for fixing the thermoplastic resin plate and the base material by laminating the base plate on the base material, filling the molten resin of the same material as the thermoplastic resin plate inside and around the undercut portion It has the 2nd characteristic to have.

  Furthermore, the third feature is that the base material is made of metal, and the fourth feature is that the base material is made of concrete. Still further, the fifth feature is that the fixed points are arranged so that the distances between any fixed point and a plurality of other fixed points located closest to the fixed point are equal to each other. It is a sixth feature that the fixed point is formed at a vertex of a square having a straight line connecting the fixed points as one side, and the fixed point is formed at an intersection of the diagonal lines of the square. And

The present invention has the following excellent effects.
(1) Since the thermoplastic resin plate and the metal or concrete base material are joined via the anchor member and the molten resin, the joining of different kinds of materials having a laminated structure can be strengthened.
(2) Since the molten resin is filled around the anchor member, a flat finished surface can be obtained. In addition, since there are no protruding portions on the finished surface, the internal capacity of the tank or the like can be increased. In addition, the fluid flow is not obstructed, and there is no worry of collecting dust, and cleaning can be performed easily.
(3) Since the molten resin to be filled and the thermoplastic resin plate are made of the same material, the adhesiveness is good, that is, the sealing property can be improved.
(4) When a female screw portion or an opening portion is formed in the base material, an anchor member is not required, so that the workability can be improved and the cost can be reduced.
(5) Since the laminated structure is composed of different materials such as a base material and a thermoplastic resin plate, it is possible to update only the thermoplastic resin plate when the thermoplastic resin plate is aged.

It is sectional drawing which shows the construction procedure in 1st embodiment of this invention. (A) which shows an example of the anchor member in 1st embodiment of this invention is a top view, (b) is a side view. (A) which shows the other example of the anchor member in 1st embodiment of this invention is a top view, (b) is a side view. It is sectional drawing which shows the construction procedure in 2nd embodiment of this invention. It is sectional drawing which shows the processing example of the base material in 2nd embodiment of this invention. It is a top view which shows the construction procedure in 3rd embodiment of this invention. It is a perspective view which shows the anchor member in 3rd embodiment of this invention. It is a perspective view which shows the anchor member in 3rd embodiment of this invention. It is sectional drawing which shows the construction procedure in 4th embodiment of this invention. It is a perspective view which shows the tank in embodiment of this invention.

  First, the laminating method in the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view showing a construction procedure in the first embodiment. 2A is a plan view, FIG. 2B is a side view showing an example of the anchor member 3, FIG. 3A is a plan view showing another example of the anchor member 3, and FIG. It is a side view.

  In the first embodiment of the present invention, first, as shown in FIG. 1A, the anchor member 3 is welded and fixed to the metal base material 2, and the anchor member 3 is exposed with the anchor member 3 exposed. A thermoplastic resin plate 1 is temporarily fixed around the periphery. As a method for temporarily fixing the thermoplastic resin plate 1, various methods can be used such as sticking to the base material 2 using an adhesive or a double-sided tape, and clamping with a tool such as a clamp. In FIG. 1A, a circular opening 11 having a tapered surface 12 is provided in advance in the thermoplastic resin plate 1 at a position corresponding to the anchor member 3 to expose the anchor member 3.

  The thermoplastic resin plate 1 is not particularly limited as long as it is a thermoplastic resin, and more preferably one that can be heat-sealed to the same kind of resin. Examples of such thermoplastic resins include polyethylene, polypropylene, polyvinyl chloride, ABS resin, polyamide, polycarbonate, polystyrene, polyurethane, polyvinylidene fluoride, and polyoxymethylene. The base material 2 is made of metal as long as it is stronger than the thermoplastic resin plate 1 and can be used as a structural material such as a tank, and metal or concrete is applied. Furthermore, the material of the metal is not particularly limited as long as it has no problem in strength, such as cast iron, cast steel, carbon steel, copper, copper alloy, brass, aluminum, stainless steel, and titanium. If the base material 2 is a metal, it is possible to inspect pinholes and cracks with a discharge-type inspection device at the completion of construction or maintenance.

  As shown in FIG. 2 as an example, the shape of the anchor member 3 is such that a circular opening 31 is provided at the center of a rectangular metal plate, the edge is bent and a weld 32 is provided, and the side view is U-shaped. As shown in FIG. 1A, the welded portion 32 is welded to the base material 2, and the U-shaped inner space is filled with the molten resin 5. As another example, as shown in FIG. 3, a metal plate is continuously formed with a concave and convex surface, a long hole 33 is provided in the convex portion 34, and the concave portion 35 is welded to the base material 2. The space on the back side of the portion 34 is filled with the molten resin 5. The anchor member 3 can be used in any shape as long as it has a weld location to be welded to the base material 2 and a space into which the molten resin 5 enters, and is not limited to the present embodiment. The anchor member 3 is fixed by welding, but may be fixed by rivets or bolts. The material of the anchor member 3 is preferably the same material as that of the base material 2, but may be any thermoplastic resin, thermosetting resin, or these resins as long as it is stronger than the thermoplastic resin plate 1 and can be fixed to the base material 2. These may be fiber reinforced or metal fittings. In the case of metal, it is not particularly limited as long as it has no problem in strength, such as cast iron, cast steel, carbon steel, copper, copper alloy, brass, aluminum, stainless steel, and titanium. Furthermore, when the anchor member 3 is a metal, defects such as pinholes and cracks can be confirmed with a discharge-type inspection device during inspection or maintenance.

  As shown in FIG. 1 (b), the molten resin 5 is poured into the opening 11 by the extrusion welding machine 4, and the molten resin 5 is filled into the opening 11 as shown in FIG. 1 (c). By solidifying, the thermoplastic resin plate 1 is laminated on the base material 2 so as to have an integral structure. The molten resin 5 flows into the anchor member 3 through the opening 31 of the anchor member 3 or the side surface on which the welded portion 32 is not provided, and the anchor member 3 is included in the molten resin 5 and solidified. Therefore, the thermoplastic resin plate 1 can be firmly fixed through the anchor member 3 welded to the base material 2. In addition, although the taper surface 12 of the opening part 11 is diameter-reduced toward the base material 2 side, for example, it forms without providing the taper surface 12 in the opening part 11, and a base material is simplified. It is also possible to provide an undercut structure in which the tapered surface 12 having a diameter expanded toward the second side is provided and the solidified molten resin 5 is difficult to be separated, and the shape of the opening 11 is limited to the present embodiment. is not.

  The extrusion welding machine 4 is an apparatus (trade name; Weld Plast S2, manufactured by Leister Technologies Co., Ltd.) that can heat the above-described thermoplastic resin into a fluid molten resin 5 and extrude the molten resin 5 to a target site. )It was used. Further, in this apparatus, hot resin is blown out to warm the thermoplastic resin plate 1, the base material 2, and the anchor member 3, whereby the molten resin 5 can easily flow and be filled.

  As described above, according to the first embodiment of the present invention, for example, the thermoplastic resin plate 1 is integrated with the flat metal base material 2 of a flat portion such as a tank by the anchor member 3 and the molten resin 5. The enforcement method of the plate 1 made from a thermoplastic resin is shown. When the base material 2 is made of concrete, an anchor bolt is placed on the base material 2 and the anchor member 3 described above is welded to the tip of the anchor bolt, so that a thermoplastic resin of a different material from the base material 2 is used. The plate 1 can be laminated on the base material 2.

  Next, a lamination method in the second embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 is a cross-sectional view showing a construction procedure in the second embodiment, and FIG. 5 is a cross-sectional view showing a processing example of the base material 2 in the second embodiment. In addition, the same code | symbol is attached | subjected to the location same as 1st embodiment, and the difference with 1st embodiment is mainly demonstrated below.

  In the second embodiment of the present invention, as shown in FIG. 4A, the female screw hole 21 is formed in the metal base material 2 and the female screw hole 21 is exposed. Temporarily fix the plate 1 made of thermoplastic resin. In FIG. 4A, a circular opening 11 having a tapered surface 12 is provided in advance in the thermoplastic resin plate 1 at a position corresponding to the female screw hole 21 to expose the female screw hole 21. . The tapered surface 12 is formed so as to increase in diameter toward the base material 2 side.

  As shown in FIG. 4B, the molten resin 5 is poured into the opening 11 and the female screw hole 21 by the extrusion welding machine 4, and as shown in FIG. 4C, the opening 11 and the female screw hole 21. Is filled with the molten resin 5, the molten resin 5 is solidified, and the thermoplastic resin plate 1 is laminated on the base material 2 so as to have an integral structure. The molten resin 5 is fused and integrally molded with the thermoplastic resin plate 1 and securely engages with the female screw hole 21 when solidified, so that the thermoplastic resin plate 1 and the base material 2 are firmly bonded. The joint strength between the thermoplastic resin plate 1 and the base material 2 can be improved. Further, even if the molten resin 5 and the thermoplastic resin plate 1 are not fused, the diameter of the tapered surface 12 is increased toward the base material 2 side, so that the solidified molten resin 5 is made of a thermoplastic resin. It is possible to prevent separation from the plate 1.

  As described above, in the second embodiment of the present invention, the so-called undercut portion for forming the female screw hole 21 is formed in the planar metal base material 2, and the thermoplastic resin plate 1 is formed by the molten resin 5. The enforcement method of the thermoplastic resin plate 1 with which the base material 2 and the base material 2 were engaged is shown. The female screw hole 21 is formed so as not to penetrate the base material 2, but may be formed so as to penetrate. Therefore, the female screw hole 21 to be processed into the base material 2 has a conical shape having a tapered surface 22 whose sectional shape is reduced in diameter toward the thermoplastic resin plate 1 as shown in FIG. 5A, for example. In addition, as shown in FIG. 5 (b), for example, as shown in FIG. 5 (b), a recess 23 is provided in the middle of the opening in a cross-sectional view, and a cylinder or a prism having different diameters is combined. ), The cross-sectional view may be a columnar or prismatic shape having a stepped portion 24 and a diameter on the base material 2 side larger than the diameter on the thermoplastic resin plate 1 side. Any shape can be applied as long as it is an undercut shape that is engaged with the base material 2 and is not easily detached. In the present embodiment, the female screw hole 21 is formed in the metal base material 2, but the base material 2 can be similarly applied even if it is concrete.

  For example, a plurality of fixing points for fixing the thermoplastic resin plate 1 according to the first and second embodiments of the present invention to a flat portion such as a tank so as to be filled with the molten resin 5 and laminated on the base material 2 are arranged. Need to do. As for the arrangement of the fixed points, if the fixed points are arranged so that the distances between any fixed point and a plurality of other fixed points located closest to the fixed point are equal to each other, a straight line connecting the fixed points is one side. A fixed point is formed at the vertex of the equilateral triangle or square. The fixing points are arranged in a regular triangular or square lattice shape, so that when the laminated structure is heated, the deformation of the thermoplastic resin plate 1 is small and stable. In the case of a square arrangement, auxiliary fixing points may be added at the intersections of the diagonals of the squares as necessary depending on the material of the thermoplastic resin plate 1 or the like.

  Next, a laminating method according to the third embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a plan view showing a construction procedure in the third embodiment of the present invention, and FIG. 7 is a perspective view showing the anchor member 3 in the third embodiment of the present invention.

  In the third embodiment of the present invention, as shown in FIGS. 6 and 7, for example, a thermoplastic resin plate 1 is laminated on a base material 2 at a corner of a tank or the like. The base material 2 is made of metal, and an anchor member 3 is welded to the base material 2 as shown in FIG. In the anchor member 3, a plurality of long holes 33 are formed in the center of the elongated metal plate, and a notch 36 having a half size of the long hole 33 is formed at an end side between the adjacent long holes 33. As shown in FIG. 6, both sides of the long hole 33 are welded portions 37, and the anchor member 3 is welded to the base material 2 at an angle of 45 ° with respect to both sides forming the corners of the base material 2. . As shown in FIG. 6A, the thermoplastic resin plates 1 are temporarily fixed to both sides of the base material 2 to which the anchor member 3 is welded.

  As shown in FIG. 6 (b), the gap 13 between the thermoplastic resin plates 1 is filled, and the molten resin 5 is poured by the extrusion welding machine 4, and the molten resin 5 is solidified as shown in FIG. 6 (c). Then, the thermoplastic resin plate 1 is laminated on the base material 2 so as to have an integral structure. The molten resin 5 flows into the inside of the anchor member 3 through the elongated hole 33 or the notch 36 of the anchor member 3, and the anchor member 3 is wound into the molten resin 5 to be solidified. It is possible to firmly fix the thermoplastic resin plate 1 through the anchor member 3 formed.

  As described above, in the third embodiment of the present invention, the thermoplastic resin plate 1 in which the thermoplastic resin plate 1 is integrated with the metal base material 2 at the corners by the anchor member 3 and the molten resin 5 is used. The enforcement method of is shown. In addition, when the base material 2 is made of concrete, it is possible to stack by placing an L-shaped steel material at the corner of the concrete base material 2 and welding the anchor member 3 to the steel material. It is. Further, as shown in FIG. 8, in the above-described embodiment, the joining of the thermoplastic resin plate 1 at the corners is described. However, the anchor member 3 shown in FIG. Lamination is possible by bonding the resin plate 1.

  Next, a stacking method according to the fourth embodiment of the present invention will be described with reference to FIG. FIG. 9: is sectional drawing which shows the construction procedure in 4th embodiment of this invention.

  In the fourth embodiment of the present invention, as shown in FIG. 9 (a), female screw holes 21 are formed in the corners of the metal or concrete base material 2, and the female screw holes 21 are exposed. In this state, the thermoplastic resin plate 1 is temporarily fixed to the base material 2 on both sides of the female screw hole 21. As a method for temporarily fixing the thermoplastic resin plate 1, various methods can be used such as sticking to the base material 2 using an adhesive or a double-sided tape, and clamping with a tool such as a clamp.

  As shown in FIG. 9B, the molten resin 5 is poured into the gap 13 between the female screw hole 21 and the thermoplastic resin plate 1 by the extrusion welder 4, and as shown in FIG. 5 is solidified, and the thermoplastic resin plate 1 is laminated on the base material 2 so as to have an integral structure. Since the molten resin 5 is fused to the thermoplastic resin plate 1 and firmly engaged with the female screw hole 21 when solidified, the thermoplastic resin plate 1 and the base material 2 are firmly engaged. The bonding strength between the thermoplastic resin plate 1 and the base material 2 can be improved.

  As described above, in the fourth embodiment of the present invention, the female screw hole 21 is formed in the base material 2 at the corner and the thermoplastic resin plate 1 and the base material 2 are engaged by the molten resin 5. A method of stacking and a stacked structure are shown. The female screw hole 21 is provided so as not to penetrate the base material 2, but may be formed so as to penetrate.

  In the lamination method shown in the first to fourth embodiments, for example, as shown in FIG. 10, the thermoplastic resin plate 1 can be laminated on the base material 2 of the tank 6. In FIG. 10, locations indicated by broken lines are locations indicating the respective lamination methods, reference numeral 61 is a location indicating the lamination method in the first embodiment, and reference number 62 is the lamination method in the second embodiment. The reference numeral 63 is a place showing the lamination method in the third embodiment, and the reference numeral 64 is a place showing the lamination method in the fourth embodiment. Further, not only the thermoplastic resin plate 1 can be laminated on the inner surface side of the tank 6, but also the thermoplastic resin plate 1 can be laminated on the outer surface side of the tank 6.

  The gist of the present invention is a method in which a thermoplastic resin plate 1 is laminated on a base material 2 of a different material, and the different materials are joined by the anchor member 3 or the undercut portion and the molten resin 5. Therefore, for example, a method of using a hexagon nut as the anchor member 3 and filling the molten resin 5 may be used, and it goes without saying that various modifications can be made without departing from the scope of the present invention. Moreover, although the said Example demonstrated the joining of the thermoplastic resin plate 1 in a corner corner part, it can laminate | stack by joining the thermoplastic resin plate 1 on a plane similarly.

DESCRIPTION OF SYMBOLS 1 Thermoplastic resin plate 11 Opening part 12 Tapered surface 13 Gap 2 Base material 21 Female screw hole 22 Tapered surface 23 Convex part 24 Step part 3 Anchor member 31 Opening part 32 Welding part 33 Long hole 34 Convex surface 35 Concave surface 36 Notch part 37 welded portion 4 extrusion welder 5 molten resin 6 tank 61 location showing the lamination method in the first embodiment 62 location showing the lamination method in the second embodiment 63 location showing the lamination method in the third embodiment 64 Location showing the lamination method in the fourth embodiment

Claims (7)

  In the method of laminating a thermoplastic resin plate on a base material made of a material different from that of the thermoplastic resin plate, an anchor member is fixed to the base material, and the thermoplastic resin plate is attached to the base material with the anchor member exposed. And a fixing point for fixing the thermoplastic resin plate and the base material by laminating the molten resin of the same material as the thermoplastic resin plate around the exposed anchor member. Lamination method of plastic resin plates.   In the method of laminating a thermoplastic resin plate on a base material made of a material different from that of the thermoplastic resin plate, an undercut portion is formed in the base material, and the thermoplastic resin plate is exposed with the undercut portion exposed. And a fixing point for fixing the thermoplastic resin plate and the base material by filling a molten resin of the same material as the thermoplastic resin plate in and around the undercut portion. A method for laminating a thermoplastic resin plate.   The method for laminating a thermoplastic resin plate according to claim 1 or 2, wherein the base material is made of metal.   The method for laminating a thermoplastic resin plate according to claim 1 or 2, wherein the base material is made of concrete.   2. The fixed points are arranged so that distances between any fixed point and a plurality of other fixed points located closest to the fixed point are equal to each other. The lamination | stacking method of the plate made from a thermoplastic resin as described in any one of thru | or 4.   The thermoplastic resin plate according to any one of claims 1 to 4, wherein the fixed points are formed at the apexes of a square having a straight line connecting the fixed points arranged as one side. Lamination method.   The method for laminating thermoplastic resin plates according to claim 6, wherein the fixed points are formed at the intersections of the diagonal lines of the square.

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