Core baking method for water-cooled motor shell of new energy vehicle

Abstract

A core baking method for a water-cooled motor shell of a new energy vehicle includes the steps of coating: immersing a sand core in a paint, evenly coating a layer of paint on the surface of the sandcore, placing the sand core on a sand core frame, naturally drying the paint, and brushing the uncoated part by a brush; self-inspection: ensuring that the surface coating of a jacket core shall be uniform, free of flow marks, and judging whether the rough part of the inner ring of the water jacket is evenly coated; core baking: first checking whether the oven and instrument are in good condition,setting the core baking temperature at 77 DEG C and the core baking time for 2.4 to 3 hours, that sand core of the coating rack is put on a drying rack aft the surface coating is dried, and then putting the coated sand core on a baking rack after the paint on the sand core becomes dry, hoisting the sand core on a trolley of the oven via hoist, driving the trolley into the oven, closing the door,switching on the power, switching off the power after heating time is over, pulling out the trolley from the oven for cooling. The electric heating oven is used for drying, the drying effect is good,and the drying environment is good.

Description

technical field [0001] The invention belongs to a core drying method for a water-cooled motor casing of a new energy vehicle. Background technique [0002] At present, the method of drying the sand core is to use hot air drying, which refers to the process of evaporating and taking away the water in the material by passing hot air, so as to dehydrate or harden the sand core to achieve a certain strength and air permeability. The dry method will pollute the environment, and the working environment is bad, which will affect the health of workers. Contents of the invention [0003] The object of the present invention is to overcome the above disadvantages and provide a drying core method for water-cooled motor casings of new energy vehicles with good drying efficiency and good working environment. [0004] The purpose of the present invention is achieved through the following technical solutions: [0005] A core drying method for a water-cooled motor case of a new energy ve...

AI Technical Summary

Problems solved by technology

[0002] At present, the method of drying sand cores is to use hot air drying, which refers to the process of passing hot air to evaporate and take away the water in the material, so as to dehydrate