Building board manufacture method and products thereof

A technology for building boards and manufacturing methods, which is applied in the direction of layered products, etc., can solve hidden safety concerns and other problems, and achieve the effect of increasing gas content, delicate bubbles, and crisp appearance

Inactive Publication Date: 2009-04-29
UNION PLASTIC HANGZHOU MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this situation, there will still be safety concerns ...

Method used

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  • Building board manufacture method and products thereof
  • Building board manufacture method and products thereof
  • Building board manufacture method and products thereof

Examples

Experimental program
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Embodiment Construction

[0042] Refer to attached Figure 1-8 :

[0043]The manufacturing method of building board material of the present invention, comprises the steps:

[0044] 1. Making injection molds for plastic building panels;

[0045] 2. Inject plastic and gas into the feeding barrel 1, heat and stir with the screw 12 to melt the aforementioned plastic and mix with the aforementioned gas to form a mixed foamed plastic melt;

[0046] 3. Introduce the aforementioned mixed foamed plastic melt into the first storage barrel 2;

[0047] 4. Extrude the plastic melt with a capacity suitable for one shot out of the first accumulator barrel 2, and at the same time perform pressure control and compensation in the cavity of the first accumulator barrel 2 to maintain the first accumulator barrel 2. Stable pressure in the 2 cavities of the storage barrel;

[0048] 5. The plastic melt that is pressed out of the first storage barrel 2 is introduced into the second storage barrel 31 through the first one-...

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PUM

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Abstract

The invention relates to a manufacturing method of a building board, and a product thereof. The method comprises the following steps: manufacturing an injection mold of the plastic building board, manufacturing mixed foamed plastic liquid, leading the liquid into a first storage machine barrel, extruding the liquid out of the first storage machine barrel, then leading the liquid into an injection machine barrel by a first check valve, simultaneously feeding materials into the first storage machine barrel by a feeding machine barrel, pressurizing the injection machine barrel, carrying injection until the mold is molded, firstly cooling the surface of the plastic liquid, measuring the current amount of injection of the injection machine barrel and the current output speed of the feeding machine barrel, adjusting the output speed of the feeding machine barrel, adjusting the rotating speed of a screw of the feeding machine barrel so as to control the feeding speed of the plastics and simultaneously adjusting the admission speed so as to match the feeding speed of the plastics. The building board obtained according to the method comprises an outer layer, and an inner core containing bubbles.

Description

technical field [0001] The invention relates to a method for manufacturing plastic building boards and products thereof. Background technique [0002] The known plastic building panels, such as floors, ceilings, and wall panels, are mostly made of pure plastic by injection molding. This method consumes more plastic. With the high price of oil, people are eager to save raw materials. In addition, pure plastic products have poor impact resistance, and building panels are prone to cracking and damage when bumped, and their heat insulation is not good. [0003] The use of foamed plastics to make building boards does not affect the use of building boards, and can significantly save raw materials, and the foamed plastics have good impact resistance, which can make building boards durable, reduce weight, and improve heat insulation. However, the known technology of foamed plastics is not suitable for the manufacture of building panels. [0004] The conventional foaming technology...

Claims

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Application Information

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IPC IPC(8): B29C45/17B29C45/46B29C45/76B29C45/62B32B5/18B32B5/32
Inventor 陆纬庭陆孝庭
Owner UNION PLASTIC HANGZHOU MACHINERY
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