Method for casting motorcycle parts by use of low-pressure casting process

A technology of low-pressure casting and casting technology, which is applied in the field of casting technology, and can solve problems such as the need for more materials and equipment, poorer mechanical properties than forgings, and unstable quality of castings, and achieve low production costs, reduced processing time, and short processing processes Effect

Inactive Publication Date: 2017-05-24
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
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Effect test

Embodiment 1

[0077] The method of casting motorcycle parts by low-pressure casting technology has the advantages of short production cycle, short processing process, low equipment investment, high yield, low production cost, low loss of tooling, high utilization rate of raw materials, good product quality stability, etc. Features, especially adopt the following setting method: the setting has the following specific steps:

[0078] 1) Use 3D modeling software to carry out 3D modeling of motorcycle parts that need to be cast;

[0079] 2) Determine the casting process parameters according to the three-dimensional modeling in step 1) combined with the metal mold low-pressure casting process, and complete the three-dimensional casting blank according to the casting process parameters. The casting process parameters include the chemical composition of the alloy material, the gating system, the machining allowance and the parting surface; The chemical composition of the alloy material includes by...

Embodiment 2

[0087] The present embodiment is further optimized on the basis of the above-described embodiments, and further to better realize the present invention, the following setting mode is adopted in particular: In step 8), the specific steps of the heat treatment are:

[0088] 8-1) Heat the motorcycle parts furnace obtained in step 7) to 800-900°C and keep it warm for 2-3 hours, then stop the furnace, and cool in the furnace to 350-450°C, then open the furnace door and continue to cool slowly to 240-280°C Take out of the oven and air cool to room temperature;

[0089]8-2) After step 8-1), heat the motorcycle parts in a box-type electric furnace to 1400-1500 ° C, determine the holding time according to the amount of furnace installed, so that part of the carbide is dissolved, and then put them into the oil pool in batches , and then wait in the oil pool for 6-8 minutes;

[0090] 8-3) Put the product treated in step 8-2) into the furnace again at room temperature and heat it to 240-...

Embodiment 3

[0092] This embodiment is further optimized on the basis of any of the above-mentioned embodiments. In order to better realize the present invention, the following setting method is adopted in particular: In step 5), the mold preheating is specifically based on the metal type The casting process preheats the metal low-pressure casting mold in different areas, so that the temperature of the mold gradually decreases from bottom to top, ensuring that the temperature of the inlet of the casting mold is 330-360°C, and the temperature of the top of the mold is 240-260°C.

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Abstract

The invention discloses a method for casting motorcycle parts by use of the low-pressure casting process. The method has the characteristics of short production period, short machining process flow, low equipment input, high yield, low production cost, small tool loss, high utilization ratio of raw materials, good production quality stability, and the like. Three-dimensional modeling software is utilized to perform three-dimensional modeling on motorcycle parts needing to be cast, a metal-type low-pressure casting process is used together to determine casting process parameters, and three-dimensional blank casting is finished according to the casting process parameters including alloy material chemical components, a gating system, machining allowance and a parting surface. The alloy material chemical components comprise the following ingredients by weight percent: less than or equal to 0.5% of C, less than or equal to 1.2-1.8% of Cu, less than or equal to 1.8-2.4% of Mn, less than or equal to 0.5-.8% of Si, less than or equal to 1.2-1.5% of Zn, less than or equal to 0.2-0.5% of Ni, less than or equal to 1-1.8% of Mg, less than or equal to 2-6% of AL, less than or equal to 0.3-0.8% of Ti, and the balance of Fe. The modeling of a casting mold is designed, and the designed modeling of the casting mold is used for manufacturing a metal-type low-pressure mold.

Description

technical field [0001] The invention relates to the fields of casting technology and the like, specifically, it is a method for casting motorcycle accessories by using a low-pressure casting process. 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...

Claims

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Application Information

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IPC IPC(8): B22D18/04C22C38/16C22C38/02C22C38/04C22C38/06C22C38/08C22C38/14
CPCB22D18/04C22C38/002C22C38/02C22C38/04C22C38/06C22C38/08C22C38/14C22C38/16
Inventor 周伦
Owner 重庆市合川区银窝铸造厂
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