CN203691858U

CN203691858U - Fire-retardant wave-absorbing material in electromagnetic-compatible anechoic chamber

Info

Publication number: CN203691858U
Application number: CN201320889208.4U
Authority: CN
Inventors: 樊迪刚; 柳海莉; 黄亮; 张洋; 胡益民
Original assignee: Nanjing Nanda Boping Electronics Information Co Ltd
Current assignee: NANJING BOPING ELECTRONIC TECHNOLOGY CO., LTD.
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-07-02
Anticipated expiration: 2023-12-31

Abstract

The utility model relates to a fire-retardant wave-absorbing material in an electromagnetic-compatible anechoic chamber and the wave-absorbing material comprises a unit body of a matrix pyramid framework, wherein a fire-retardant thin-sheet wave-absorbing material layer is pasted on the outer surface of the pyramid framework. In comparison with the prior art, a magnesium oxide board is used in the utility model, inflaming retarding grade of the wave-absorbing material can be increased and fireproof performance in anechoic chamber use is increased, so that investment in fireproof facilities in the anechoic chamber is reduced. The superficial pasting technology is used, so that painting unevenness caused by original directly painting of a guide wave-absorbing body on a base material is improved and the material has many advantages such as good consistence in absorbing performances.

Description

A kind of electromagnetic compatibility anechoic chamber flame resisting wave-absorbing material

Technical field

The utility model relates to a kind of novel wave-absorbing material and preparation method thereof, relates generally to a kind of special absorbing material in electromagnetic compatibility laboratory that is applied to.

Background technology

The absorbing material of one of chief component in electromagnetic compatibility laboratory equipment, traditional absorbing material generally adopts the absorbing material of combined type, adopt ferrite wave-absorbing material and pyramid absorbing material, adopt the technique of pasting or mount to be arranged on side and the end face in laboratory.

When tradition ferrite wave-absorbing material is installed complexity, quantities Datong District, price is higher, the utility model can replace traditional combined type absorbing material, make no longer needs ferrite wave-absorbing material in the time building electromagnetic compatibility laboratory, directly lays absorbing material of the present utility model.Greatly reduce the cost in laboratory, reduce the difficulty of construction and installation and shorten the cycle that build in darkroom.

The fire resistance of previous Chinese patent application 200910030899.0 is 26%, and of the present utility model be nonflammable, oxygen index can reach 80%, reduces fire risk in use of darkroom.

Utility model content

The purpose of this utility model is to provide a kind of electromagnetic compatibility use for laboratory absorbing material, for building electromagnetic compatibility laboratory, meets the requirement of various electromagnetic compatibility tests to experimental situation.

The technical solution adopted in the utility model is: a kind of electromagnetic compatibility use for laboratory absorbing material, comprise the cell cube of matrix pyramid skeleton, and pyramid skeleton outer surface is pasted nonflammable thin slice absorbing material layer.

On nonflammable thin slice absorbing material layer, can also there is outer surface decorative layer.

Wherein said centrum skeleton (pyramid skeleton), refers to that the tapered skeleton bonding together with all-purpose adhesive after adopting glass magnesium plate according to certain size cutting and form is for supporting nonflammable thin slice absorbing material.

Wherein said glass magnesium plate (being commonly called as magnesium oxide plate can buy in market) is with magnesium oxide, magnesium chloride, and water ternary system, be configured and add modifier and make, the magnesium gelatinous material of stable performance, take neutral and alkali glass fiber net as reinforcing material, the novel noninflammability ornament materials being composited take light material as filler.

Wherein said nonflammable thin slice absorbing material, preferably adhesive-bonded fabric is the fire-retardant nonflammable thin slice absorbing material with inhaling ripple processing of base material process, and its thickness range is 0.2mm-0.5mm, and surperficial resistance per square is 300-500 ohm;

Wherein said outer surface is decorated, and refers to decorative paint or decorates wallpaper effects on surface and beautify.

All-purpose adhesive, the preferably good board all-purpose adhesive of brothers or white glue with vinyl.

Another object of the present utility model is to provide the preparation method of said electromagnetic compatibility use for laboratory absorbing material, comprises the following steps:

1) sheet material cutting: glass magnesium plate is carried out to excision forming with High Rotation Speed cutting equipment;

2) skeleton assembling: by the upper all-purpose adhesive in joint face way of the sheet material cutting, and be assembled into taper type skeleton;

3) thin slice cutting: nonflammable thin slice absorbing material is placed on and carries out punch forming in flat-press indentation machine;

4) stickup shaping: in step 2) assemble outer surface and the step 3 of skeleton) cut the upper glue in inner surface way of thin slice bonding assembled formation.

5) decorative appearance: by step 4) absorbing material that stickup shaping is good, decorative paint is sprayed by the method for spraying

At outer surface or by the effect of pasting the method for facing paper and play decoration.

The utility model compared with prior art, has adopted glass magnesium plate, can improve the fire-retardant rank of absorbing material, improves fire protecting performance in the use of darkroom, therefore reduces the input of fireproofing installation in darkroom.Owing to having adopted the technology of surperficial stickup, improve and originally directly on base material, brushed the brushing inequality of leading wave-absorber and cause, there is the plurality of advantages such as material absorbent properties high conformity.

Accompanying drawing explanation

Fig. 1 is the outline drawing of the absorbing material that can make of the utility model.

Fig. 2 is the utility model electromagnetic compatibility use for laboratory absorbing material preparation technology flow chart.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.

The term using in the utility model, unless there is other explanation, generally has the implication that those of ordinary skills understand conventionally.

In following embodiment, various processes and the method do not described in detail are conventional methods as known in the art.

Embodiment 1:

Preparation process is as Fig. 2

1) sheet material cutting: sheet material is become to trapezoidal sheet material according to the shape cutting of pyramid;

2) skeleton assembling: by the upper all-purpose adhesive in joint face way of the sheet material of cutting, be assembled into skeleton with cone conformation in special mould.

3) thin slice cutting: sheet type absorbing material is placed on and (is furnished with special cutting die) in flat-press indentation machine and carries out punch forming.

4) stickup shaping: assemble the outer surface of skeleton and cutting glue on the inner surface way of thin slice, and bonding assembled formation.

5) decorative appearance: by the good absorbing material of stickup shaping, decorative paint is sprayed on to outer surface or plays the effect of decoration by the method for stickup facing paper by the method for spraying.The product design obtaining is as Fig. 1.

The utility model and conventional urethane foam complex ferrite absorbing material performance are relatively as table 1:

Table 1.

The utility model is not limited to these disclosed embodiments, and the utility model is the scope covering described in patent book, and the various modification of claim scope and equivalence change.

Claims

1. an electromagnetic compatibility anechoic chamber flame resisting wave-absorbing material, comprises the cell cube of matrix pyramid skeleton, it is characterized in that cone skeleton outer surface pastes nonflammable thin slice absorbing material layer.

2. electromagnetic compatibility anechoic chamber flame resisting wave-absorbing material as claimed in claim 1, is characterized in that, wherein said nonflammable thin slice absorbing material layer outer surface has dope layer.

3. electromagnetic compatibility anechoic chamber flame resisting wave-absorbing material as claimed in claim 1, is characterized in that, wherein said nonflammable thin slice absorbing material layer thickness scope is 0.2mm-0.5mm, and surperficial resistance per square is 300-500 ohm.