CN1017386B - A kind of manufacture method of tabular parabolic antenna - Google Patents

Abstract

A kind of radio microwave communication is with the manufacture method of tabular parabolic antenna, this method is to be skeleton with the reinforcing bar, pour into into pedestal with cement, coke compound, be coated on the base-plates surface with sand mud again, with the model that adheres to specification, sand mud rotation wipeed off to make becomes backform and the bed die with parabola shaped concave surface and convex surface, pours into molten iron between model, makes through cooling, form removal, trimming.The inventive method is convenient and simple, can guarantee product precision and result of use, and cost reduces by 50～60% than aluminium sheet stamping products.

Description

A kind of manufacture method of tabular parabolic antenna

The present invention relates to the manufacture method of the tabular parabolic antenna that a kind of radio microwave communication uses.

Current, in the radio microwave communication, to adopt tabular parabolic antenna commonplace, effect is better.But the production method of this antenna, with its cambered surface more complicated, difficulty is bigger, adopts the aluminium alloy plate punching press to make more, makes in this way, mould is made difficulty, price such as raw material such as aluminium alloy plate, steel plate costliness, consumption is many, and antenna plate also will be set up width of cloth beam, to improve intensity, so cost is very high.

The objective of the invention is to provide a kind of manufacture method of tabular parabolic antenna, its method is simple, and cost is low, and guarantees product quality, and is identical with the existing product result of use.

The object of the present invention is achieved like this: this method is to be skeleton with the reinforcing bar, composite material with cement, coke pours into into pedestal, be coated on the base-plates surface with sand mud again, the model that the rotation shape adheres to specification, sand mud surface is wipeed off, making becomes backform and the bed die with parabolic surface, pours into molten iron in model, makes through cooling, form removal, trimming.

Manufacture method of the present invention is simple, has overcome to make the difficulty of cambered surface, and can guarantee product precision and result of use, has reduced cost significantly, and generally than aluminium sheet stamping products, cost reduces by 50～60%, helps the promotion and application of tabular parabolic antenna.

Particular content of the present invention is provided by following examples and accompanying drawing thereof.

Fig. 1 uses the mould schematic diagram when producing antenna.

Describe its manufacture method in detail below in conjunction with accompanying drawing.

1) on the smooth ground of compacting, makes skeleton, with pouring into into convex surface bed die pedestal 1 behind coke, the cement blunge, and make its surface become a parabola substantially with reinforcing bar;

2) after pedestal 1 scleroma, sand and clay is even by 6: 4 weight ratio mix, add the sand mud 2 of one-tenth paste behind the water, be coated on the base-plates surface;

3) at sand mud 2 not before the drying, be the center with the center of pedestal 1, be radius with the half parabola shaped model that adheres to specification, rotate a circle, sand mud surface is spread to parabola shaped cambered surface;

4) after sand mud drying, brushing one deck graphite powder slurry in its surface so that the demoulding, bed die;

5) identical with the bed die manufacture method, make concave surface backform 5, at the backform periphery, be provided with notch 4, this notch 4 be positioned at the bed die periphery, the end face of antenna plate thickness setting matches a little more than the tenon 3 on bed die surface on request, suspension ring 6 and sprue gate 7 are established in backform 5 tops;

6) backform 5 is lifted on the bed die, notch 4 and tenon 3 are matched, between two models, form the gap that is consistent with designing requirement antenna plate thickness naturally; In the present embodiment, thick 6 centimetres of plate center, thick 2.5 centimetres of edge;

7) rising head is rebuild, removed to pouring molten iron, at cooling, form removal, makes finished product.

Claims (1)

1, the manufacture method of the tabular parabolic antenna used of a kind of radio microwave communication is characterized in that being made up of following operation:

1) on the smooth ground of compacting, makes skeleton, with pouring into into convex surface bed die pedestal 1 behind coke, the cement blunge, and make its surface become a parabola substantially with reinforcing bar;

2) after pedestal 1 scleroma, sand and clay is even by 6: 4 weight ratio mix, add the sand mud 2 of one-tenth paste behind the water, be coated on the base-plates surface;

3) at sand mud 2 not before the drying, be the center with the center of pedestal 1, be radius with the half parabola shaped model that adheres to specification, rotate a circle, sand mud surface is spread to parabola shaped cambered surface;

4) after sand mud drying, brushing one deck graphite powder slurry in its surface so that the demoulding, bed die;

5) identical with the bed die manufacture method, make concave surface backform 5, at the backform periphery, be provided with notch 4, this notch 4 be positioned at the bed die periphery, the end face of antenna plate thickness setting matches a little more than the tenon 3 on bed die surface on request, suspension ring 6 and sprue gate 7 are established in backform 5 tops;

6) backform 5 is lifted on the bed die, notch 4 and tenon 3 are matched, between two models, form the gap that is consistent with designing requirement antenna plate thickness naturally;

7) rising head is rebuild, removed to pouring molten iron, at cooling, form removal, makes finished product.