More-than-once foaming type extrusion molding insulation board production process and equipment thereof

A technology of multiple foaming and production process, which is applied in the production of extruded thermal insulation board, the production process of multiple foamed extruded thermal insulation board and its equipment field, which can solve the problem that the dimensional stability of products exceeds the specification value and the dimensional stability of products is poor. , The overall board density is not uniform, etc., to achieve uniform foaming, uniform cells, and display obvious effects.

Inactive Publication Date: 2016-12-07
北京首豪新型建材科技集团有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional extruded insulation board is only foamed once in the production process, and the foaming is not uniform, the overall board density is not uniform, and the final product has poor dimensional stability. The dimensi

Method used

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  • More-than-once foaming type extrusion molding insulation board production process and equipment thereof

Examples

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Example Embodiment

[0020] Example 1

[0021] Such as figure 1 As shown,

[0022] The production process of multiple foaming extruded thermal insulation board includes the steps of steaming and baking, foaming, traction and refoaming after one foaming and extrusion, wherein the specific operation of the foaming step is as follows:

[0023] First of all, control the steam pressure used by the first steam foaming box. The control range is between 0.2 and 22.12 MPa. After the first foaming, the insulation board enters the first steam foaming box and connects to the second steam foaming box. Box, the third steam foaming box (the number of times of steaming for different thickness insulation boards is different, and the final foaming is subject to complete. At the initial stage of use, adjust the pressure valve to control the temperature between 40 and 100 ℃, and then adjust the valve to control the temperature at 50 -150℃, and at the same time, adjust the traction height and speed of the intermediate mult...

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Abstract

The invention discloses a more-than-once foaming type extrusion molding insulation board production process and equipment thereof. The production process comprises the steps of steaming and baking, foaming and traction re-foaming after primary foaming extrusion. The equipment comprises a first extruder, a second extruder, a clamping plate setting machine, a multi-roller tractor, a first steam foaming box, a second steam foaming box, a four-roller tractor and a third steam foaming box which are connected mutually. The more-than-once foaming type extrusion molding insulation board production process and the equipment thereof have the advantages that the size stability of an insulation board is improved substantially, the phenomenon that the insulation board is subjected to contraction deformation due to the fact that the size stability index of the insulation board cannot reach the code standard and the temperature is changed in spring, summer, autumn and winter, and consequently an outer wall insulation board cracks and falls is avoided, and the project quality is ensured.

Description

technical field [0001] The invention relates to an extruded plastic insulation board, in particular to a production process and equipment for a multi-foaming extruded plastic insulation board, which belongs to the field of extruded plastic insulation board production. Background technique [0002] At present, the traditional extruded insulation board is only foamed once in the production process, and the foaming is not uniform, the overall board density is not uniform, and the final product has poor dimensional stability. The dimensional stability of the product seriously exceeds the standard value, and the product used on the outer wall cracks and falls off due to excessive shrinkage and expansion, which reduces the quality of the project and seriously affects personal safety. Contents of the invention [0003] In order to solve the above problems, the present invention designs a production process and equipment for multiple foaming extruded plastic insulation boards, whi...

Claims

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Application Information

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IPC IPC(8): B29C44/26
Inventor 刘印楼
Owner 北京首豪新型建材科技集团有限公司
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