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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, long production cycle, and high cost of screens, and achieve the effect of increasing the evaporation area and increasing the speed of dispersion

Active Publication Date: 2015-03-25
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 example is used to illustrate the screen of the present invention.

[0072] Add 100 parts by weight of silica sand (particle diameter: 100-200 mesh, sphericity: 0.65) into the muffle furnace, roast at 700°C for 30 minutes, then transfer the roasted silica sand to a sand mixer, and heat it at 100r Under the stirring speed of / min, when cooling to 150°C, add 5 parts by weight of epoxy resin (the model is E51, the epoxy value is 0.48-0.54eq / 100g) and 0.2 parts by weight of CR-826 type titanium dioxide, continue Stir, and when the temperature is reduced to 100° C., add 5 parts by weight of nitrile rubber (the weight average molecular weight is about 2000, purchased from Shenzhen Peace Chemical Co., Ltd.), 1 part by weight of alumina hydrate and 0.1 part by weight of six parts by weight. methylenetetramine to obtain a sand-based composition. Use this sand base composition to combine with Figure 5 Spread a layer of material evenly on the bottom of the mold correspondi...

Embodiment 2

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

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

Embodiment 3

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

[0079] The screen is prepared according to the method of Example 1, the difference is that the weight-average molecular weight of the nitrile rubber used is about 1500 (purchased from Shenzhen Peace Chemical Co., Ltd.), thereby making the screen A3, wherein 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 a prominent position indoors, and have the functions of separation, beautification, wind protection, 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 wooden screens are easy to rot and fire in a humid environment. Contents of the invention [0003] The object of the present invention is to provide a new screen in order to overcome the above-mentioned defects existing in the existing screen. [0004] The invention provides a screen, which comprises 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 are The diameter is 1-100 microns, and the porosity is 10-40%; the top of t...

Claims

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Application Information

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