Core preparation technology for casting cylinder liner

Abstract

The invention discloses a core preparation technology for casting a cylinder liner, comprising the following steps: inspecting the drying and surface quality of seven different mud cores one by one; inspecting the air holes of the first mud core, the second mud core and the third mud core, wherein if the air hole is blocked or a fracture is communicated with the air hole, the air hole is not allowed to be used, the air hole with a slight fracture is allowed to be used after using a paint paste to coat and fill and drying; grinding the mold joint of the fifth core into flat by a core grinder, removing seams, burr, and floating sand and filing out fillets for the qualified mud cores; using red sand mud to block the two ends of the air holes of the second mud core and the third mud core; painting and adding an iron oxide powder water base paint on the first mud core, the second mud core, and the third mud core; painting a water base graphite paint on the fourth mud core, the fifth mud core, and the sixth mud core, and the seventh mud core; after uniformly painting the seven mud cores, carrying out secondary drying. The technology has the advantages of reasonable process and strict requirements, and can prevent the subsequent work from generating errors, can shorten the working time, and can greatly raise the work efficiency.

Description

Technical field: [0001] The invention relates to a core matching process for cylinder liner casting. Background technique: [0002] In the cylinder liner casting process, the core matching process plays a very important role. However, this process takes a long time to check the quality of various clay cores, which is often ignored by people, or it takes a short time to check the quality. In fact, some unqualified mud cores enter the use process, so that the follow-up work cannot be completed quickly, and the work efficiency is greatly reduced. Invention content: [0003] The object of the present invention is to overcome the above disadvantages and provide a core matching process for cylinder liner casting with reasonable process, shortened working time and greatly improved working efficiency. [0004] The object of the present invention is achieved through the following technical solutions: a core matching process for cylinder liner casting, comprising the following step...

AI Technical Summary

Problems solved by technology

[0002] In the cylinder liner casting process, the core matching process plays a very important role. However, this process takes a long time to check the quality of various clay cores, which is often ignored by people, or takes a short time to check the quality. On the contrary, some unqualified mud cores enter the use process, so that the follow-up work cannot be completed quickly, and the work efficiency is greatly reduced.