Casting technique for casting wear-resisting piece of motorcycle

Abstract

The invention discloses a casting technique for casting a wear-resisting piece of a motorcycle. The wear-resisting property and tenacity of the wear-resisting piece of the motorcycle are improved, air holes in the wear-resisting piece of the motorcycle are reduced, the service life of the wear-resisting piece of the motorcycle is prolonged, operation is simple, and the casting technique has the advantages of being low in cost and little in casting dust. The casting technique particularly adopts the following arranging mode, and the casting technique comprises the following steps that after being dried through a drying furnace, modeling sand is prepared to be a to-be-manufactured casting mold of the wear-resisting piece of the motorcycle together with core sand; casting ingredients are selected and then baked through a flame, and the casting ingredients comprise, by mass, 15-20 parts of spheroidal graphite cast iron waste materials, 25-30 parts of high-carbon steel and 65-70 parts of recirculated iron; and the high-carbon steel, the recirculated iron and the spheroidal graphite cast iron waste materials are sequentially put into an electric furnace to be melted till a base iron solution is formed, and after an copper alloy is melted and before the molten copper alloy comes out of the furnace, a pre-treatment agent containing barium serving as a master component and lanthanum serving as an auxiliary component is added into the molten base iron solution in the electric furnace.

Description

technical field [0001] The invention relates to the fields of casting technology and the like, in particular to a casting process for casting wear-resistant parts of motorcycles. Background technique [0002] Casting - smelting metal, making casting molds, pouring molten metal into casting molds, and obtaining metal parts blanks with certain shape, size and performance after solidification. [0003] Casting is the process of smelting metal into a liquid that meets certain requirements and pouring it into a mold, cooling and solidifying, and cleaning to obtain a casting with a predetermined shape, size and performance. Because the casting blank is almost shaped, the purpose of free machining or a small amount of machining reduces the cost and reduces the production time to a certain extent. Casting is one of the basic processes of the modern device manufacturing industry. [0004] Casting is a kind of metal thermal processing technology mastered by human beings earlier, with...

AI Technical Summary

Problems solved by technology

[0035] Disadvantages: 1. The mechanical properties are not as good as forgings, such as coarse structure and many defects;

[0036] 2. In sand casting, single piece and small batch production, the labor intensity of workers is high;

[0037] 3. The quality of castings is unstable, there are many processes, the influencing factors are complex, and many defects are prone to occur

[0047] Casting production has different characteristics from other processes, mainly because it has wide adaptability, requires more materials and equipment, and pollutes the environment.