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Casting method of sand core oil tube of internal combustion engine

A technology for internal combustion engines and oil pipes, which is applied in the casting field of internal combustion engine sand core oil pipes, can solve problems such as not being overcome, and achieve the effects of solving fixed problems, precise oil pipe dimensions, and increasing surface roughness

Active Publication Date: 2014-10-01
KOCEL EQUIP
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  • Claims
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Problems solved by technology

[0003] So far there is no way to overcome the above drawbacks

Method used

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  • Casting method of sand core oil tube of internal combustion engine
  • Casting method of sand core oil tube of internal combustion engine
  • Casting method of sand core oil tube of internal combustion engine

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Embodiment Construction

[0026] A casting method for oil pipes with sand cores of internal combustion engines, including molding, core making, box closing and pouring, characterized in that: oil pipe sand cores are used for positioning when making cores, that is, oil pipe cores pass through all inner cavity cores, and the outer mold cores on both sides The position of the oil pipe is determined by the positioning of the head, the steel pipe is selected as the core iron, and the raw material of the oil pipe core is chromite sand; when the oil pipe sand core is bent and deformed when the box is closed, the end is added to the end of the lost foam shrinkage joint, and the compressed air is blown for forced cooling. Add a special anti-leakage core support to the oil pipe part of the tank.

[0027] The surface of the core iron steel pipe is crossed with holes of ф5mm, and the steel pipe is fully shot blasted before use.

[0028] The ingate is far away from the oil pipe sand core.

[0029] The blowing of c...

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Abstract

The invention relates to a casting method, and particularly relates to a casting method of a sand core oil tube of an internal combustion engine. The casting method comprises the steps of molding, core making, mold assembling and casting. The casting method is characterized in that in the core making process, an oil tube sand core is adopted to position, i.e. the oil tube sand core passes through all inner cavity cores, so as to determine the position of an oil tube by positioning outer mold core heads on both sides, a steel tube is selected as core iron, and chromite sand is used as raw materials of the oil tube core; in the mold assembling process, the oil tube sand core is prevented from being bent and deformed, i.e. ends are additionally arranged, a mold shrinkage joint disappears, forced cooling is performed by blowing compressed air, and a special leakproof chaplet is additionally arranged in the position of the oil tube in the mold assembling process. The casting method has the advantage of unique process, the casting quality can be increased, and the product rejection rate can be reduced.

Description

technical field [0001] The invention relates to a casting method, in particular to a casting method for a sand core oil pipe of an internal combustion engine. Background technique [0002] With the continuous advancement of internal combustion engine technology, the technical requirements of internal combustion engine frame, end cover and other products, which are the core components of internal combustion engines, are also constantly improving. The current market product difficulties mainly focus on the complex shape of the inner cavity, more oil pipes, and high dimensional accuracy. The oil pipe is a key area of ​​the main frame of the internal combustion engine. In order to ensure the dimensional accuracy and the bending degree of the oil pipe, the casting plan of the oil pipe is particularly important. The casting plan of the traditional sand core is as follows: 1) The positioning of the sand core of the oil pipe: the core is positioned at the bottom Core head positionin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/24
Inventor 边正海苏少静刘利平刘国强周杰安少妮
Owner KOCEL EQUIP
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