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Low density material beat insulating sound insulating board and its production method

A low-density material, heat and sound insulation technology, applied to other household appliances, wood processing appliances, household components, etc., can solve the problems of insufficient use of hemp rods, not suitable for sound insulation, heat insulation boards, etc., to achieve sound insulation Good thermal effect, high utilization rate, energy saving effect

Inactive Publication Date: 2012-11-14
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Apparently, the prior art is a composite panel made of hemp segments, planks, and wooden frames hot-pressed and glued together. The utilization of hemp rods is not sufficient, and it is not very suitable for sound insulation and heat insulation boards.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with embodiment: the production of this plate needs the following steps:

[0014] (1) Material selection and pretreatment: the selected density is 60-220kg / m 3 Straight, straight and easy-to-peel plant stems, such as the peeled hemp stems of various hemp species, the cores of waxy corn and sorghum stems, and the cores of sunflower stems that are difficult to peel can also be used. Use whole stems Or use rolling to crush the broken stems; pretreatment includes peeling the unpeeled ones, removing the leaves if there are leaves, removing the twigs if there are twigs, cutting and straightening, cutting the roots and keeping the stems, rolling or not rolling;

[0015] (2) Drying: Drying in a drying room or natural drying, with a moisture content of 8%-20%, and debris such as mud, stones, feathers, iron wires, etc., should be removed during the drying process;

[0016] (3) Gluing: Use hot pressing, heat c...

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PUM

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Abstract

The present invention relates to a production method of low-density material heat-insulating and sound-insulating board. Said board can be made into board body or column body, its density is 100-450 kg / cum.m, and its glue content is 1%-6%. Its production method includes the following steps: selecting material, pretreatment, drying, applying glue, making blank, pressing or solidifying and aftertreatment.

Description

technical field [0001] The invention relates to a heat-insulating and sound-insulating board made of low-density materials such as hemp stalks as raw materials, glued and hot-pressed, and a method for producing the board. Background technique [0002] The technology of using hemp stalks as raw materials and crushing them into small pieces to press them into lightweight boards has been known. This method of crushing and pressing into boards requires one more process, more crushing machines, and more energy consumption. The electric energy destroys the mechanical strength of the hemp rod itself and affects the strength of the plate made. CN1057954C discloses Mr. Guo Caijin's patent technology of "a new type of flat solid core plate and its manufacturing process", and CN2564327Y discloses Mr. Gao Zhankui's patent technology of "light body plate made of yellow (red) hemp rod". Both of them use similar technologies The plan is to use hemp stalks as filling materials, cut them in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/02
Inventor 马灵飞
Owner ZHEJIANG FORESTRY UNIVERSITY