Fabrication method of wind power vane web mold

Abstract

The invention relates to a fabrication method of a wind power vane web mold. Metal is adopted as a material. The method comprises the steps that 1) a foundation support is prefabricated and arranged in the length direction of a preformed wind power vane web, 2) a mold heating layer with the same surface area as the foundation support is arranged on the fabricated foundation support, 3) a surface steel plate is horizontally laid on the upper surface of the formed mold heating layer, 4) a flanging mechanism of the wind power vane web mold is arranged on the upper surface of the surface steel plate, 5) a plurality of vacuum holes for mounting vacuum nozzles are formed on the outer side of the flanging mechanism in the length direction of the wind power vane web mold, the vacuum nozzles are connected with a peripheral vacuum pump by vacuum pipes connected with the vacuum nozzles, and 6) all sections of wind power vane web mold are sequentially connected from the wide section to the narrow section by end part connection components to form the complete wind power vane web mold. The method is simple and direct in process, low in cost and reusable, and facilitates popularization and application, and the processing mold does not deform easily.

Description

technical field [0001] The invention relates to a method for preparing a mold, in particular to a method for preparing a web mold for a wind power blade. It belongs to the field of mold making in the wind power industry. Background technique [0002] With the country's strong support for the clean energy industry, wind power technology has developed rapidly. As an important working element in the process of wind power generation, wind turbine blades have been paid more and more attention to the manufacture and production of its components. [0003] Wind turbine blades usually consist of three parts: skin, beam, and web. Among them, the web plays a supporting role in the inner cavity of the blade and bears the main load of the blade during the movement process, and the forming of the web needs to be produced by a web mold. [0004] In the prior art, the material used for the preparation of the web mold is glass fiber reinforced plastic; the preparation of the glass fiber r...

AI Technical Summary

Problems solved by technology

There are following disadvantages in its preparation method: 1) the production cycle is long

2) Substitute wood is usually used as the molding material of the FRP master mold: first, the cost is high, and second, there are qualitative requirements for the environment and temperature, and its curing characteristics are unstable

3) Expensive processing costs and high transportation costs

4) The utilization rate of FRP master mold is low

After making 2 to 5 sets of mold products, the surface of a set of master molds is severely deformed and can no longer be used

5) The resin material system is difficult to control

In the process of making FRP master molds and mold products, different resin material systems have different chemical properties such as curing characteristics and Tg values, and the stability is poor.

6) The heating system is unstable

The FRP web mold adopts electric heating, and local overheating and burning of the surface layer often occur during the working process, which delays the production progress

7) The operation steps are cumbersome, and the mold needs to be turned over during the process of making the mold; however, due to the weight of the mold, large-scale hoisting equipment is required during the turning process, which increases the risk factor during the operation

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