Centrifugal casting machine of casting iron pan and centrifugal casting method thereof

Abstract

The invention discloses a centrifugal casting machine of a casting iron pan. The centrifugal casting machine comprises a rack. A lower bearing plate is horizontally arranged on the rack, a rotating shaft is vertically arranged on the lower bearing plate, and a power rotation-driving mechanism is arranged at a lower free end of the rotating shaft; a lower die is arranged at an upper free end of the rotating shaft, an upper die is arranged over the lower die in an on-off mode, and a centrifugal chamber is formed between the upper die and the lower die in a fastening mode; and a layer of high-temperature die coating layer is coated on the surface of the centrifugal chamber, a casting port communicating with the inner portion of the centrifugal chamber is formed in the upper die, the upper die is arranged on an upper bearing plate through a bearing, and the upper bearing plate is arranged on a lifting air cylinder. Centrifugal force enables specific pressure to increase sharply, and the functions that the density inside cast iron solution is increased, the crystal is compact, a fine grain layer is thickened, air holes inside the cast iron are decreased, and the surface quality is improved can be achieved easily; and the production period is shortened, the rate of finished products is improved, and the consumption of primary metal and the production cost of products are reduced.

Description

technical field [0001] The invention relates to the technical field of iron pan manufacture, and more specifically relates to a cast iron pan centrifugal casting machine and a centrifugal casting method thereof. Background technique [0002] At present, there are many casting techniques for cast iron pots, which can be roughly divided into two types: sand casting and die casting. Sand casting is to use clay bonded sand as molding material to produce castings. It is a process with a long history and the most widely used process. Die casting is a metal casting process characterized by the application of high pressure to molten metal using the cavity of a mold. Molds are usually machined from stronger alloys, a process somewhat similar to injection molding. [0003] However, in reality, due to the old technology, the development of productivity is hindered: the production cycle is long, the casting is not easy to be in place, the density is not enough, and the surface canno...

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Problems solved by technology

[0003] However, in reality, due to the old technology, the development of productivity is hindered: the production cycle is long, the casting is not easy to be in place, the density is not enough, and the surface cannot meet the production precision, resulting in low yield rate, making people mistakenly think that cast iron pots are low-grade products. So many manufacturers choose other materials to make high-quality pots

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