All-plastic submersible electric pump and injection molding process thereof

Abstract

The invention discloses an all-plastic submersible electric pump and an injection molding process thereof. The all-plastic submersible electric pump comprises an injection molded electric pump body, an injection molding flow passage component arranged in the electric pump body, a motor stator, a motor rotor and a motor shaft, wherein the motor stator, the motor rotor and the motor shaft are installed in the injection molded electric pump body. The injection molding process is convenient, high in efficiency and low in production cost compared with an electroplating process, and injection moldedparts have little differences in the aspects of size, appearance, quality and the like, are small in machining amount, and can be easily produced in series on a large scale. The novel injection molding process is adopted, and a traditional electroplating process of a plastic water pump is abandoned. In the aspect of materials, selected reinforced nylon obtained after tempering treatment through super-long glass fibers is small in density and good in strength, rigidity, toughness and other mechanical prosperities, the self-weight of the submersible electric pump is greatly lowered, conveying,installing and use of the submersible electric pump are facilitated, and the reinforced nylon is more suitable for being applied to common submersible electric pumps compared with traditional FRPP orPVDF materials.

Description

technical field [0001] The invention belongs to the field of submersible electric pumps, in particular to an all-plastic submersible electric pump and its injection molding process. Background technique [0002] Most of the traditional submersible pump parts are made of cast iron, the production process is complicated, the efficiency is low, and the processing cost is high. Moreover, there are large differences in size and quality between the products produced in the same batch, and it is not easy to form serialization Large-scale production; corrosion occurs in the metal flow-passing parts of traditional submersible pumps, which not only affects the life of the pump, but also pollutes the water quality, so it cannot be directly used for pumping drinking water for residents. Therefore, it is very necessary to design a submersible electric pump using new materials and new technology, so the design has strong originality and application prospects. Contents of the invention ...

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Problems solved by technology

[0002] Most of the traditional submersible pump parts are made of cast iron, the production process is complicated, the efficiency is low, and the processing cost is high. Moreover, there are large differences in size and quality between the products produced in the same batch, and it is not easy to form serialization Large-scale production; corrosion occurs in the metal flow parts of traditional submersible pumps, which not only affects the life of the pump, but also pollutes the water quality, so it cannot be directly used for pumping drinking water for residents

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