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Casting method of air-cooled engine cylinder

An air-cooled engine and cylinder liner technology, applied in casting molding equipment, casting molds, casting mold components, etc., can solve problems such as energy conservation and environmental protection, mass production, complex process schemes, and low utilization of molten iron, and achieve production The effect of environment improvement, smooth appearance, and labor intensity reduction

Active Publication Date: 2013-02-13
HUBEI ZANBO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional sand casting production method to produce air-cooled engine cylinder liners not only has complex process schemes, poor production environment, high labor intensity, low production efficiency, low utilization rate of molten iron, and low yield
It is difficult to meet the requirements of energy saving, environmental protection and mass production

Method used

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  • Casting method of air-cooled engine cylinder
  • Casting method of air-cooled engine cylinder
  • Casting method of air-cooled engine cylinder

Examples

Experimental program
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specific Embodiment approach 1

[0051] This embodiment adopts the casting method provided by the present invention to cast an air-cooled engine boron material cylinder liner with a weight of 6.8 kg, a temperature of molten iron of 1350 degrees, and a rotation speed of 1000 revolutions per minute. After the molten iron is poured into a double-layer mold, the automatic switch is started, and the time relay automatically It is controlled to start pumping water after 20 seconds of rotation, and the water pumping time is 40 seconds. After the water is stopped, continue to rotate for 60 seconds and then stop. The resin sand core inner mold and the cylinder liner blank of the air-cooled engine are ejected and put into a fixed insulation material box. After complete cooling, use a shot blasting machine to clean the sand to obtain the air-cooled engine cylinder liner blank.

specific Embodiment approach 2

[0052]This embodiment adopts the casting method provided by the present invention to cast an air-cooled engine phosphorus cylinder liner, with a weight of 5.2 kg, a temperature of molten iron of 1320 degrees, and a rotation speed of 1000 revolutions per minute. After the molten iron is poured into a double-layer mold, the automatic switch is started, and the time relay It is controlled to start pumping water after 20 seconds of rotation, and the water pumping time is 30 seconds. After the water is stopped, continue to rotate for 50 seconds and then stop. The resin sand core inner mold and the cylinder liner blank of the air-cooled engine are ejected and put into a fixed insulation material box. After complete cooling, use a shot blasting machine to clean the sand to obtain the air-cooled engine cylinder liner blank.

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Abstract

The invention discloses a casting method of an air-cooled engine cylinder. The casting method comprises the following steps: processing an inner die casting mould of an air-cooled engine cylinder sleeve; processing an outer die casting mould of the air-cooled engine cylinder sleeve; placing the inner die casting mould into the outer die casting mould, assembling and forming a double-layered mould; pouring metal liquid at 1300-1400 DEG C to the double-layered mould, rotating the double-layered mould along the horizontal axial direction to generate a centrifugal force, so that the metal liquid is fully filled in the double-layered mould; controlling time of adding water and cooling time; when set time of adding the water and the set cooling time are reached, adding the water to cool the double-layered mould; taking out a cooled inner die casting mould; obtaining the air-cooled engine cylinder sleeve. The casting method disclosed by the invention is simple in technique, high in utilization rate of molten iron, good in product quality, and high in yield.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a casting method for an air-cooled engine cylinder liner. Background technique [0002] The engine is divided into water-cooled and air-cooled in terms of cooling methods. The air-cooled engine uses air as the cooling medium, does not need a radiator, has a simple structure, light weight, and quick start. It has strong adaptability to climate change and can work normally in the environment of drought and water shortage. Because of these characteristics. In recent years, domestic air-cooled diesel engines have developed rapidly, and are developing towards multi-cylinder and large-bore. [0003] The cylinder liner of an air-cooled engine is the core part of an air-cooled engine. There are many thin and complex-shaped heat sinks distributed on its surface, which generally can only be cast. However, the traditional sand casting production method to produce air-cooled engine cylin...

Claims

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Application Information

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IPC IPC(8): B22C9/24B22C9/00
Inventor 何涛王化平
Owner HUBEI ZANBO INFORMATION TECH CO LTD
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