Casting technique for casting wear-resisting piece of motorcycle

A technology of casting technology and wear-resistant parts, which is applied in the direction of manufacturing tools, casting molding equipment, and improvement of process efficiency. It can solve problems such as many defects, more materials and equipment required, and mechanical properties inferior to forgings, so as to improve wear resistance. Good quality and toughness, extended service life, less casting smoke

Inactive Publication Date: 2017-05-31
重庆市合川区银窝铸造厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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, ther

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The casting process used to cast motorcycle wear-resistant parts can greatly improve the wear resistance and toughness of motorcycle wear-resistant parts, reduce the pores on motorcycle wear-resistant parts, prolong the service life of motorcycle wear-resistant parts, and is easy to operate , has the advantages of low cost and less casting dust, especially adopts the following setting method: including the following steps:

[0075] 1) The molding sand is dried in an oven and then made into a mold of a motorcycle wear-resistant part to be manufactured together with the core sand;

[0076] 2) Select casting ingredients, including casting ingredients including high carbon steel, returned furnace iron and ductile iron waste, and bake the casting ingredients with flame, wherein, the mass component content of casting ingredients is: 15-25 parts of ductile iron scrap , 25-30 parts of high carbon steel, 65-70 parts of returned iron;

[0077] 3) Put the high carbon steel, retur...

Embodiment 2

[0085]This embodiment is further optimized on the basis of the above-mentioned embodiment, and further in order to better realize the present invention, the following setting method is adopted in particular: in the step 6), the chemical composition of the inoculant used during the first inoculation treatment The mass percentages are: Mg: 2-3%, Si: 65-67%, Ca: 1.5-1.8%, Al: 0.3-0.5%, S≤0.06%, O≤0.08%, and the rest is Fe, among which, the first The mass percentage of the inoculant added for the first time is 0.85-0.95% of the total casting ingredients, and the incubation time is 70-100s; the sulfur-oxygen inoculant added in the second inoculation treatment is 0.22-0.27% of the total casting ingredients, The incubation time is 20-30s.

Embodiment 3

[0087] This embodiment is further optimized on the basis of any of the above-mentioned embodiments. Further, in order to better realize the present invention, the following arrangement is adopted: the nodulizer described in step 5) is nickel-magnesium alloy or yttrium basis weight Rare earth spheroidizing agent, and the added spheroidizing agent mass percentage is 1.6-1.8% of the total amount of casting ingredients, and the spheroidizing time is 70-75s.

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B22C9/02C22C33/08C22C37/04C21C1/10C21D1/26C21D1/18C21D5/00
CPCB22C9/02C21C1/105C21D1/18C21D1/26C21D5/00C22C33/08C22C37/04Y02P10/20
Inventor 周伦
Owner 重庆市合川区银窝铸造厂
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