A kind of propeller casting molding method

Abstract

The present invention discloses a propeller casting molding method comprising the following steps: making a propeller steel mold; making a sand core; assembling for forming a propeller sand core; making a pouring gate steel mold; making a mud core; and making a sand box; and the manufacturing process comprises casting; picking up; sawing a riser, and grinding for molding. The propeller casting molding method is strong in operability and good in technology, and can improve propeller quality, increase production efficiency and reduce production costs, product quality meets customer demand for products, and a new profit growth point is created for enterprises.

Description

technical field [0001] The invention belongs to the technical field of ships, and more specifically relates to a propeller casting method. Background technique [0002] The traditional ship propeller casting process mainly adopts base plane pitch surface scraper + external pitch triangle plate + sand filling plate + false blade, etc. Compared with the ship propeller casting method invented this time, it has the following disadvantages: 1. It is difficult for molders to operate Accuracy requirements are high. The pitch value of each point of the propeller blade is controlled by the scraper and the coordinate ruler, and the accuracy is affected by the precision of the tool, resulting in an increase in the thickness of the blade, increasing the workload of subsequent grinding, and prolonging the construction period; 2. The shapers are labor intensive and have many processes. Poor working conditions; 3. It takes a long time to make a single piece. Due to many processes and high...

AI Technical Summary

Problems solved by technology

[0002] The traditional ship propeller casting process mainly adopts base plane pitch surface scraper + external pitch triangle plate + sand filling plate + false blade, etc. Compared with the ship propeller casting method invented this time, it has the following disadvantages: 1. It is difficult for molders to operate High accuracy requirements

The pitch value of each point of the propeller blade is controlled by the scraper and the coordinate ruler, and the accuracy is affected by the precision of the tool, resulting in an increase in the thickness of the blade, increasing the workload of subsequent grinding, and prolonging the construction period; 2. The shapers are labor intensive and have many processes. Poor working conditions; 3. It takes a long time to make a single piece. Due to many processes and high labor intensity, it leads to low efficiency and long production time, which restricts the improvement of the quality and efficiency of ship propellers and forces us to adopt new processes and methods that are more suitable for the market. Production of ship propellers

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