Turbine casing casting method

Abstract

The invention discloses a turbine casing casting method which is used for casting a turbine casing. The turbine casing casting method comprises the following steps: S1, arranging a riser: choosing the riser and putting the riser at the external edge of the turbine casing; S2, arranging a chilling block: putting the chilling block in the turbine casing and enabling the chilling block to be attached to a thick large portion of a casting; S3, arranging a thermal-insulation block: arranging the follow-up thermal-insulation block on the outer side in a feeding channel of the casting and enabling the follow-up thermal-insulation block to be attached to the feeding channel of the casting; S4, designing and pouring a runner: arranging the corresponding runner in a casting mold and then finishing pouring the turbine casing through the runner; S5, polishing and manufacturing the casting: taking the poured turbine casing from the mold and cutting and polishing the riser position of the turbine casing. All in all, the turbine casing casting method is low in cost, convenient to operate, excellent in using effect and high in using and application value.

Description

technical field [0001] The invention relates to a casting method of a turbine casing, which is especially suitable for the casting method of a special-structure turbine casing with a thick internal structure, and belongs to the field of component casting. Background technique [0002] A turbocharger is an air compressor that increases the air intake of the engine by compressing air, thereby increasing the output power of the engine. Because of its excellent use effect, it is widely used in the automotive industry. [0003] In recent years, with the rapid development of the automobile manufacturing industry, the turbocharger industry has also made great progress. Also because of the development of the turbocharger industry and the continuous advancement of technology, various automobile manufacturers have put forward higher requirements for the core part of the turbocharger, that is, the internal quality of the turbine housing. [0004] Specifically, for some turbine shells...

AI Technical Summary

Problems solved by technology

Once the feeding channel solidifies before the thick part in the center of the casting, the riser cannot effectively exert its feeding ability to the thick part in the center of the casting

In this way, the casting will have problems such as shrinkage and porosity at the thick and large part of the center, which will seriously affect the quality of the casting and the yield rate of the processing enterprise, and greatly reduce the production efficiency of the processing enterprise.

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