Method for manufacturing hub edge mold with embedded cooling pipes

Abstract

The invention discloses a method for manufacturing a hub edge mold with embedded cooling pipes. The method comprises the following steps that firstly, pipes are manufactured, the embedded cooling pipes and heat resisting pipes are manufactured according to the size of a hub, and the embedded cooling pipes and the heat resisting pipes are fixed in a paired mode; secondly, positioning is conducted, the paired embedded cooling pipes and the paired heat resisting pipes are buried in a sand box to be poured and fixed according to cooling positions; thirdly, ventilative cooling or sand-filling cooling is conducted, and compressed air is introduced into the embedded cooling pipes continuously or the embedded cooling pipes are filled with dry sand; fourthly, pouring is conducted, molten steel is poured into the sand box where the embedded cooling pipes and the heat resisting pipes are buried; and fifthly, sand is removed after cooling, and then the hub edge mold with the embedded cooling pipes is obtained. According to the method for manufacturing the hub edge with the embedded cooling pipes, compressed air is introduced into the embedded cooling pipes continuously or the embedded cooling pipes are filled with the dry sand, heat can be taken away, and thus the situation that the embedded cooling pipes are molten and do not work during pouring is avoided; the heat resisting pipes corresponding to non-heating joint areas are arranged in the hub edge mold, and the influences of severe water cooling on non-heating joints of a hub window are avoided.

Description

technical field [0001] The invention belongs to the field of mold casting, and in particular relates to a manufacturing method of a wheel hub side mold with a pre-embedded cooling pipeline. Background technique [0002] At present, the aluminum alloy wheel forming mold mainly includes an upper mold, a lower mold and a side mold, and the upper mold, the lower mold and the side mold form a closed cavity. During the casting of aluminum alloy wheels, high-temperature molten aluminum liquid is injected into the cavity, and after the liquid aluminum cools down, it becomes a wheel hub product. Among them, the root of the spoke is thick and there is a hot spot, which needs to be subjected to strong cooling, but the window of the spoke cannot be subjected to strong cooling. [0003] In the prior art, the water-cooling mechanism of the wheel hub generally adopts the following two methods, one is the welded water-cooling insert, the welded part is easy to crack, the processing cost is...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the water-cooling mechanism of the wheel hub generally adopts the following two methods, one is the welded water-cooling insert, the welded part is easy to crack, the processing cost is higher, and the production cycle is longer; instead, the deep hole drill is used to drill the water channel After plugging, the mold temperature field is unevenly distributed due to the non-conformity of the water channel

Moreover, both of the above two methods have severe water cooling, which also has an uncontrollable impact on the non-thermal joints of the spoke window.