CN111605046A

CN111605046A - Gypsum board die and application thereof

Info

Publication number: CN111605046A
Application number: CN201910311755.6A
Authority: CN
Inventors: 尹东杰; 简铭
Original assignee: Beijing New Building Material Group Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-09-01

Abstract

The application discloses gypsum board mould, including roof, bottom plate, diaphragm, curb plate, wherein, set up the rectangle device groove that supplies the curb plate to fix on the diaphragm, connect through connecting device between the diaphragm. The application also provides a use method of the gypsum board mold. The gypsum board mould of this application can satisfy the demand that the small-size thistle board of laboratory preparation is used for the test to improve the surface of thistle board.

Description

Gypsum board die and application thereof

Technical Field

The application relates to the field of building materials, in particular to a gypsum board die and a using method thereof.

Background

The gypsum board is a building material with light weight, high strength, thin thickness, convenient processing, good performances of sound insulation, heat insulation, fire prevention and the like, and is one of the currently-developed novel light boards. Gypsum boards have been widely used for interior partitions, wall-covering panels (instead of wall plasters), ceilings, sound-absorbing panels, floor slabs, and various decorative panels in various buildings such as houses, office buildings, shops, hotels, and industrial plants.

In the field of gypsum plasterboards, in order to research the mechanical properties, heat insulation coefficient, sound insulation, fire resistance and the like of the gypsum plasterboards in the new product development process, a large number of test pieces need to be prepared, and at the present stage, gypsum board molds in the industry are all ceiling gypsum board molds developed for ceiling systems and are made of rubber and the like. Since there is no experimental mould for paper-faced gypsum board. When research personnel prepare thistle board in the laboratory, not only can waste a large amount of time, can not guarantee moreover that the panel performance of preparing under the same condition is stable, and there is very big error in the experimental result, often needs the rework. In addition, the prepared paper-surface gypsum board has the problems that the surface has grooves, the bonding between the board core and the protective paper is poor, the strength of the paper-surface gypsum board is influenced, and the like.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The application provides a gypsum board mould is used in laboratory. The existing gypsum board mould is mostly a silica gel and resin rubber mould for producing gypsum ceiling suspended ceilings, is a special mould for producing products, and has different patterns. Utility model patent CN 207656906U, a mould for production gypsum board sets up the silica gel layer at mould inner chamber equally, but this is a mould that once can produce polylith gypsum board. These moulds have in common that the gypsum board product is produced, not a test block. The gypsum board mould of this application can satisfy the demand that the small-size thistle board of laboratory preparation is used for the test to improve the surface of thistle board.

Specifically, the application provides a gypsum board mould, including roof, bottom plate, diaphragm, curb plate, wherein, set up the rectangle device groove that supplies the curb plate to fix on the diaphragm, connect through connecting device between the diaphragm.

In the present application, the connection means may comprise a bracket articulation bolt and a nut; common bolts and nuts, washers; high-strength bolt, nut and washer.

In some embodiments of the present application, the thistle board test is preferably comprised of a bottom panel, a cross panel A, B, side panels C, D, bracket swing bolts, nuts, and a top panel. The transverse plate A, B is provided with a rectangular device groove for fixing the side plate C, D, and the transverse plate are fixed by a bracket movable joint bolt and a nut. After the trial mold assembly, each adjacent surface must be perpendicular.

In the application, the gypsum board mould can be made of a cast steel plate or a stainless steel plate, the inner surface of the gypsum board mould is machined to be smooth, and no sand holes or defects exist.

In the present application, the thickness of the bottom plate and the top plate may be 5mm-10mm, the area of the bottom plate may be (800-.

In the present application, the inner area of the frame of the transverse plate and the side plate may be (600-.

In the application, a groove with the depth of 5mm is arranged on the transverse plate at a position 10mm away from the two end parts so that the side plates are inserted to form a frame,

through holes are formed in the transverse plates at a position 5mm away from the two end portions, so that long rod bolts between the two transverse plates can be installed conveniently.

In the application, linear scales can be carved on both the transverse plate and the side plate, so that the measurement is convenient, and the measuring method is shown in fig. 2. And when the gypsum plaster board test piece is cut, cutting according to the size required by the detection standard.

The application also provides a use method of the gypsum board mold, which comprises the following steps:

firstly, two transverse plates are placed in parallel, a rectangular frame is formed by a bolt, a nut and the transverse plates and is slightly fastened, side plates are longitudinally inserted into grooves at two ends of the transverse plates, the side plates and the bottoms of the transverse plates are ensured to be on the same horizontal plane, and the bolt and the nut are fastened to form a frame structure;

then, flatly placing the bottom plate, flatly placing the face protective paper on the bottom plate, and placing the transverse plate and the side plates to enable the lower planes of the transverse plate and the side plates to be tightly attached to the plane of the bottom plate without being bent;

coating the inner wall of a mould with a release agent, adding slurry and making the slurry higher than the mould, inserting and pounding the slurry for a plurality of times, trowelling, covering another protective paper, covering a top plate, and compacting;

and when the mold is disassembled, the top plate is removed, the nut between the transverse plates is screwed, the long rod bolt is removed, then the bidirectional transverse plate is tapped by a rubber hammer, and the side plates are disassembled.

In the application method, the release agent can be used as waste engine oil, and an aqueous release agent prepared by emulsifying waste engine oil and various additives.

In the application method, the main components of the release agent can comprise: waste engine oil, synthetic grease, sodium fatty acid, an emulsifier, a preservative and an antirust agent.

In this application, should pay attention to the diaphragm and the lower plane of curb plate and bottom plate plane must lean on closely when the mould is adorned, must not flex up, can compress tightly the model when necessary, and the upper plane of each board is flicked with the mallet, makes and pastes closely with the bottom plate.

In some embodiments of the present application, during the manufacture of the gypsum board test piece, the transverse plate and the side plate frame are firstly assembled; then, flatly placing the bottom plate on the operation table board, flatly paving the lower paper of the protective paper, placing the transverse plate and the side plate frame, and ensuring that the transverse plate, the lower plane of the side plate and the plane of the bottom plate are tightly attached without being bent; coating a mold inner wall with a mold release agent, filling the mold with the slurry by using a putty knife, slightly raising the mold to leave a hole for placing the slurry, inserting and tamping the slurry along the mold wall for a plurality of times by using the putty knife, trowelling the slurry by using a trowel, covering upper paper of the face-protecting paper, covering a top plate and compacting the upper paper. When the mold is disassembled, the top plate is removed, the nut between the transverse plates is screwed, the long rod bolt is removed, then the bidirectional transverse plate is tapped by a rubber hammer, and the side plates are disassembled.

According to the requirements of GB/T9775-2008 'gypsum plasterboard' 6.3 on 'samples and test pieces', except for the test pieces for measuring the edge hardness and the end hardness, the test pieces are cut and numbered in the directions, the sizes and the numbers specified by the standard at the positions which are more than 100mm away from the periphery of the plate for each test.

TABLE 1 test piece Specification in GB/T9775-2008 paper surface Gypsum Board

The thickness of the bottom plate and the top plate of the paper-surface gypsum board die is preferably 5-10 mm; the area of the bottom plate is not (800-: 9.5mm, 12mm, 15mm, 18mm, 21mm, 25 mm.

TABLE 2 thistle board die size

In this application, on the diaphragm, apart from two tip 10mm departments, open degree of depth 5 mm's recess to make the curb plate insert, constitute the frame. Through holes are formed in the transverse plates at a position 5mm away from the two end portions, so that long rod bolts between the two transverse plates can be installed conveniently. The diaphragm of this application is shown in figure 1.

The mould of this application can solve the demand that the small-size thistle board of present stage thistle board research personnel preparation is used for the test, improves the surface of thistle board.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

Fig. 1 is a schematic view of a mold of the present application.

FIG. 2 is a schematic view of the cross plate of the mold of the present application, wherein ≧ means the total length of the cross plate ≧ 630 mm.

FIG. 3 is a scale pattern on the cross plate and side plates of the mold of the present application.

FIG. 4 is a schematic view of a cut test piece of a paper-faced gypsum board sample.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The application provides a gypsum board mould, including roof, bottom plate, diaphragm, curb plate, wherein, set up the rectangle device groove that supplies the curb plate to fix on the diaphragm, connect through connecting device between the diaphragm. The application also provides a use method of the gypsum board mold, which comprises the following steps:

Example 1:

example 1

The method comprises the following steps: and developing a new 12 mm-thick paper-surface gypsum board product. And (3) testing the influence of the new formula on the mechanical property and the bonding property of the gypsum plasterboard, wherein the transverse and longitudinal loads and the bonding property need to be tested, and preparing a corresponding test block.

The implementation is as follows: the height of the bottom plate and the top plate of the gypsum plaster board die is 5 mm; the bottom plate area is 1000mm, the roof area is 800mm, the area in diaphragm and the curb plate frame is 700mm, the height of diaphragm and curb plate is 12mm with thistle board thick specification unanimity.

TABLE 3 paper plaster board mould size

Die filling: the transverse plate and the lower plane of the side plate are close to the plane of the bottom plate, and the upper plane of each plate is tapped by a wooden hammer while the model is pressed tightly, so that the transverse plate and the lower plane of the side plate are close to the plane of the bottom plate.

And (3) manufacturing a test piece: firstly, assembling a transverse plate and a side plate frame, inserting the side plates into a transverse plate groove, and connecting the transverse plates with nuts through long bolts; then, the bottom plate is flatly placed on the operation table board, the lower paper of the face protecting paper is flatly laid, and the transverse plate and the side plate frame are placed, so that the transverse plate, the lower plane of the side plate and the plane of the bottom plate are tightly attached to each other and are not bent; coating a mold inner wall with a mold release agent, filling the mold with the slurry by using a putty knife, slightly raising the mold to leave a hole for placing the slurry, inserting and tamping the slurry along the mold wall for a plurality of times by using the putty knife, trowelling the slurry by using a trowel, covering upper paper of the face-protecting paper, covering a top plate and compacting the upper paper.

Removing the mold: and (4) removing the top plate, screwing the nut between the transverse plates, removing the long rod bolt, then tapping the bidirectional transverse plate by using a rubber hammer, and removing the side plates.

And (3) cutting a test piece: and cutting test pieces in the direction, the size and the number specified by the standard at the position more than 100mm away from the periphery of the plate, numbering the test pieces and providing the test pieces for testing. FIG. 4 is a schematic view of a test piece for testing the transverse and longitudinal fracture load and adhesion properties of the cut sheet.

Comparative example 1

The method comprises the following steps: and developing a new 12 mm-thick paper-surface gypsum board product. And (3) testing the mechanical property and the bonding property of the gypsum plasterboard, wherein the transverse and longitudinal loads and the bonding property need to be tested, and preparing a corresponding test block.

The method adopts a conventional laboratory method and comprises the following steps:

step 1: cutting the protective paper, 500mm multiplied by 500mm, paving, and placing two cuboid steel rods with the thickness of 12mm on the protective paper with the distance of 300 mm. Pouring the prepared gypsum slurry before initial setting, covering an upper layer of protective paper, flattening by using a flat plate, and cutting the gypsum slurry into the size required by the experiment after final setting.

Test example 1

Using the two methods of example 1 and comparative example 1, the performance test plaques prepared in the laboratory have the following differences:

appearance quality: example 1, the paper-faced gypsum board has a flat surface without corrugation and groove defects. Comparative example 1, the paper-surface gypsum board has grooves and corrugation defects on the surface.

Dimensional deviation: example 1, a gypsum plasterboard is flat with a thickness deviation of 0.2 mm; comparative example 1 a paper-faced gypsum board is mostly flat but has grooves on the surface, the deviation of the thickness of the flat part is 2mm, and the deviation of the grooves is-1 mm to-5 mm.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims

1. The utility model provides a gypsum board mould, includes roof, bottom plate, diaphragm, curb plate, wherein, set up the rectangle device groove that supplies the curb plate to fix on the diaphragm, connect through connecting device between the diaphragm.

2. The gypsum board mold of claim 1, wherein the connection means comprises bracket joint bolts and nuts; ordinary bolts, nuts, washers; high strength bolt, nut, packing ring.

3. The gypsum board mold of claim 1, wherein the gypsum board mold is made of a cast steel plate or a stainless steel plate.

4. The gypsum board mold of claim 1, wherein the thickness of the bottom plate and the top plate is 5mm-10mm, the area of the bottom plate is (800-.

5. The gypsum board mold of claim 1, wherein the inner area of the frame of the transverse board and the side board is (600-800) mm x (600-800) mm, and the height of the transverse board and the side board is 9.5-25 mm.

6. The gypsum board mold of claim 1, wherein the lateral plate is recessed by a depth of 5mm from both end portions by 10mm to allow the side plates to be inserted to constitute a frame,

7. The gypsum board mold of claim 1, wherein linear scales are engraved on both the cross plate and the side plates.

8. The method of using the gypsum board mold of any one of claims 1 to 7, the method of using comprising:

9. The use method according to claim 8, wherein the release agent is used oil, an aqueous release agent prepared by emulsifying used oil and various additives.

10. The use method according to claim 9, wherein the main components thereof comprise: waste engine oil, synthetic grease, sodium fatty acid, an emulsifier, a preservative and an antirust agent.