Active slag remover for foundry and preparation method thereof

Abstract

The invention discloses a casting activated slag removing agent. The casting activated slag removing agent comprises the following raw materials including, by mass, 55-75 parts of perlite powder, 15-20 parts of wollastonite powder, 5-8 parts of borax, 5-10 parts of water glass and 4-6 parts of calcium-silicon powder. The invention further discloses a preparing method of the activated slag removingagent. By means of the casting activated slag removing agent and the preparing method of the casting activated slag removing agent, perlite is improved, the melting temperature range of the perlite is enlarged, meanwhile, wollastonite and the borax are introduced in, the melting point of molten slag is reduced, and therefore the absorbing capability of the slag removing agent on the molten slag is improved; the activated slag removing agent is scattered onto a metal liquid face and is rapidly spread, the covering and heat insulation performance is good, metal components are not changed, and metal liquid is not polluted; alloy element oxidization during smelting is effectively reduced, the slag gathering capability is good, sticking of a packaging lining and a furnace lining is avoided, and the service life of the packaging lining and the furnace lining is prolonged; and the slag removing reaction is quiet, splashing and ash floating are avoided, the smoke amount is extremely small, and safety and environment friendliness are achieved.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to an active slag remover for casting and a preparation method thereof. Background technique [0002] With the continuous development and innovation of casting technology in our country, new casting equipment and casting technology are constantly being applied, and large-scale casting automatic molding lines have also been rapidly promoted and used in China. The progress of technology has also put forward challenges for traditional casting materials. new requirements. The slag remover is an auxiliary material in the casting material. It is a product that provides convenience for the slag removal process. The main function of the slag remover is to gather and bond the slag on the surface of the molten iron; at the same time, the slag remover also has the function of The surface of molten iron is covered to reduce oxidation, reduce the temperature loss of molten iron and ...

AI Technical Summary

Problems solved by technology

This kind of slag removal agent is cheap, but due to the large differences in the physical properties of perlite in various parts of the country, after expansion and melting in the cast iron (steel) ladle, the formed melt has different slag accumulation and slag removal effects. Leading to uncontrollable melt performance and unstable slag removal effect

In addition, when the perlite slag remover is used, due to thermal expansion of crystal water, it will cause bursting and dust, which not only causes environmental pollution, but also affects the safety of operators.

Imported slag remover products, such as Ishikawa and Kaka from Japan, have the advantages of fast expansion and high expansion multiples, but their prices are high. The price per ton has reached more than 4,000 yuan, which has exceeded the price of pig iron scrap, which has greatly increased. The manufacturing cost of the enterprise cannot be accepted by most foundry enterprises