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Screen

A technology of screens and screen boards, applied in screens, household appliances, applications, etc., can solve the problems of screen perishability, high screen cost, long production cycle, etc., and achieve the effect of increasing the speed of dispersion and increasing the evaporation area

Active Publication Date: 2013-07-03
BEIJING RECHSAND SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing screens on the market are made of wood. However, the cost of wooden screens is high and the production cycle is long. Moreover, wooden screens are easy to rot and fire in a humid environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] This embodiment is used to illustrate the screen of the present invention.

[0072] Add 100 parts by weight of silica sand (particle diameter of 100-200 mesh, sphericity of 0.65) into the muffle furnace, roast at 700 ℃ for 30 minutes, and then transfer the roasted silica sand to the sand mixer, at 100r / min stirring speed, when cooling to 150℃, add 5 parts by weight epoxy resin (model E51, epoxy value 0.48-0.54eq / 100g) and 0.2 parts by weight CR-826 titanium dioxide, continue Stir and add 5 parts by weight of nitrile rubber (weight average molecular weight about 2000, purchased from Shenzhen Heping Chemical Co., Ltd.), 1 part by weight of hydrated alumina and 0.1 parts by weight of hexamethylene to the mixture when the temperature is lowered to 100°C. Methylenetetramine to obtain a sand-based composition. The sand-based composition will be combined with Figure 5 Spread a layer of material evenly on the bottom of the mold corresponding to the screen board structure as sho...

Embodiment 2

[0075] This embodiment is used to illustrate the screen of the present invention.

[0076] The screen was prepared according to the method of Example 1, except that nitrile rubber was not added, so as to obtain image 3 In the screen A2 shown, the diameter of the pores of the screen plate is 20-40 microns, and the porosity is 27%.

Embodiment 3

[0078] This embodiment is used to illustrate the screen of the present invention.

[0079] The screen was prepared according to the method of Example 1. The difference was that the weight average molecular weight of the nitrile rubber used was about 1500 (purchased from Shenzhen Heping Chemical Co., Ltd.), thus the screen A3 was prepared, in which the micropores of the screen plate The diameter is 20-40 microns and the porosity is 29%.

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PUM

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Abstract

The invention relates to a screen which comprises a screen plate (1) and a base (3). The screen plate (1) is formed by molding and curing sand base composition containing silica sand and bonding agent; the micropore diameter of the screen plate (1) is 1 to 100 micrometers, and the factor of porosity is 10 to 40 percent; a groove (2) is formed at the top of the base (3); the lower end of the screen plate (1) stretches into the groove (2) and is connected with the base (3); and the lower end of the screen plate (1) stretching into the groove (2) and the side wall of the groove (2) form a cavity. The screen can play the role of indoor air humidity adjustment.

Description

Technical field [0001] The invention relates to a screen. Background technique [0002] In modern society, as a kind of furniture, screens are generally displayed in conspicuous places in the room, which have the functions of separation, beautification, wind shielding, and coordination. Most of the existing screens on the market are made of wood. However, the cost of wooden screens is high, the production cycle is long, and the wooden screens are prone to rot in a humid environment and are prone to fire. Summary of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the existing screens and provide a new screen. [0004] The present invention provides a screen comprising a screen board and a base, wherein the screen board is made by molding and curing a sand-based composition containing silica sand and a binder, and the micropores of the screen board The diameter is 1-100 microns, and the porosity is 10-40%; the top of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47G5/00
Inventor 秦升益马志坤
Owner BEIJING RECHSAND SCI & TECH GRP
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