Plastic building template

A technology for building formwork and plastics, which is applied in construction, building structure, formwork/formwork components, etc., to achieve the effect of improving strength, light weight and convenient use.

Inactive Publication Date: 2011-04-13
张应征
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foam filling often has defective products due to inaccurate filling

Method used

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  • Plastic building template
  • Plastic building template
  • Plastic building template

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: see figure 1 , a plastic building formwork, including a plane main plate 1, a rectangular cross-section reinforcing rib 2 located on one side of the plane plate, wherein the plane main plate and the reinforcing ribs are solid plates formed by PVC foam material at one time. The template of the invention is prepared from S700 type PVC resin, adding AC foaming agent and regulator. The process uses the Seluka foaming method, adopts a special mold, and increases the pressure on the surface layer to cool the skin during the time of exiting the mold. Make the skin crust, the thickness of the crust is about 1mm, and the hardness meets the requirements of the template. The core reduces the pressure and causes it to foam. The overall weight of the formwork is reduced, and the formwork is easy to use in construction. The Vicat softening temperature of the solid board is 97°C, the elastic modulus is 3000, and the bending resistance is 60MPa.

Embodiment 2

[0031] Example 2: see figure 2 , image 3 , Figure 4 , a plastic building formwork, basically the same as the first embodiment, comprising a flat main body plate 1, a rectangular cross-section reinforcing rib 2 located on one side of the flat plate, wherein the flat main body plate and the reinforcing rib are formed by PVC foam material at one time solid board. Wherein, fixed through holes or threaded holes 31 are distributed on the outermost reinforcing ribs on both sides. image 3 It shows that the two left and right adjacent formwork are fixed by steel nails in the through holes on the outermost reinforcing rib, or by threaded fixing in the threaded holes. Figure 4 The back surfaces of two upper and lower adjacent templates are shown to be fixed together by connecting plates, wherein the connecting plates can be fixed directly on the back side of the plane main board or on the back side reinforcing rib of the plane main board. in addition, image 3 A representation ...

Embodiment 3

[0032] Example 3: see Figure 5 , the content is basically the same as that of the first or second embodiment, and the similarities will not be repeated. The difference is that the cross-section of the reinforcing rib on the side of the template is an isosceles trapezoid or a right-angled trapezoid.

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Abstract

The invention relates to a plastic building template which comprises a planar main body plate and a strengthening rib positioned on one side of the planar main body plate, wherein the planar main body plate and the strengthening rib are produced by a solid plate which is formed by one-step molding of a PVC (polyvinyl chloride) foam material, the Vicat softening temperature of the solid plate is 97 DEG C, the elastic modulus is 3000, and the anti-bending degree is 60MPa. The plastic building template is light in weight, high in strength and surface smoothness and friction-resistant, is easy to clean, has no deformation, and can be cut and nailed arbitrarily according to needs without affecting the reuse of the template almost; any combination and supporting structure can be completed alone; square lumbers do not need to be attached to the back surface of the plastic building template to improving the strength of the template; and the material of the template can be recycled. The plastic building template is easy to process and manufacture, and the plastic building template further has the characteristic of one-step demolding and molding, and the filling of a hollow part and the re-strengthening problem of the side surface of the template do not need to be considered.

Description

technical field [0001] The invention relates to a formwork in the construction field, in particular to a light, solid and integrated plastic building formwork. Background technique: [0002] In the field of construction, people have been relentlessly pursuing and researching a simple, handy, lightweight, low-cost, economical and durable building formwork or composite formwork. The bamboo, wood or steel formwork used in the early days was almost eliminated due to reasons such as excessive weight or corrosion resistance, and the existing building formwork is more common with plastic building formwork. However, the plastic formwork used in the construction field is not easy to use solid formwork due to heavy weight, high cost, and deformation. Hollow plastic building formwork has the advantages of light weight and high flatness, but its strength is not high enough to be impacted. Easy to deform, not stable enough. During use, due to a certain part being damaged, heavy substa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G9/05
Inventor 张应征
Owner 张应征
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