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Engine integral cylinder cover water jacket sand core and preparation process

A water-jacketed sand core and engine technology, which is applied to manufacturing tools, cores, casting and molding equipment, etc., can solve the problems of engine cylinder head water jacket sintering, difficulty in cleaning, and veining, etc., and achieves strong veining ability and inner cavity. High cleanliness and good collapsibility

Inactive Publication Date: 2019-12-13
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of local sintering, sand sticking, veining, and cleaning difficulties in the inner cavity of the water jacket of the engine cylinder head, a sand core for the water jacket of the engine cylinder head and its preparation process are now invented to solve the above problems

Method used

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  • Engine integral cylinder cover water jacket sand core and preparation process
  • Engine integral cylinder cover water jacket sand core and preparation process
  • Engine integral cylinder cover water jacket sand core and preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A water jacket sand core for an integral cylinder head of an engine, including the following components: 80kg of quartz sand, 54kg of ceramsite sand, 60kg of chromite sand, 6kg of anti-veining additive, 2.2kg of resin component I, and 2.2kg of resin component II .

specific Embodiment approach

[0030] A kind of preparation technology of engine overall cylinder head water jacket sand core, specific implementation method is as follows:

[0031] (1) Add 80kg of quartz sand, 54kg of ceramsite sand, 60kg of chromite sand, and 6kg of anti-veining additive into the reaction kettle in sequence, start stirring, control the stirring speed at 100-150 rpm, and stir at 20-30°C for 10- 20 seconds.

[0032] (2) Add 2.2 kg of resin component I and 2.2 kg of resin component II under stirring, control the stirring speed at 100-150 rpm, mix at 20-30°C for 60-90 seconds, and then produce sand.

Embodiment 2

[0034] An engine integral cylinder head water jacket sand core, including the following components: 76kg of quartz sand, 54kg of ceramsite sand, 60kg of chromite sand, 10kg of anti-veining additive, 2.2kg of resin component I, and 2.2kg of resin component II .

[0035] A kind of preparation technology of engine overall cylinder head water jacket sand core, specific implementation method is as follows:

[0036] (1) Add 76kg of quartz sand, 54kg of ceramsite sand, 60kg of chromite sand, and 10kg of anti-veining additive into the reaction kettle in sequence, start stirring, control the stirring speed at 100-150 rpm, and stir at 20-30°C for 10- 20 seconds.

[0037] (2) Add 2.2 kg of resin component I and 2.2 kg of resin component II under stirring, control the stirring speed at 100-150 rpm, mix at 20-30°C for 60-90 seconds, and then produce sand.

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Abstract

The invention discloses an engine integral cylinder cover water jacket sand core and a preparation process, and belongs to the technical field of engine part casting. The engine integral cylinder cover water jacket sand core comprises quartz sand, an aluminosilicate material, chromite sand, an anti-vein additive, a resin component I and a resin component II. The engine integral cylinder cover water jacket sand core has the following advantages that the anti-sintering capacity, the anti-sand-burning capacity and the anti-vein capacity are high, the pouring molten iron quantity of a casting is 210 KG, the pouring temperature ranges from 1400 DEG C to 1420 DEG C, the minimum wall thickness of the water jacket sand core is smaller than 5 mm, no defects of sintering, sand burning and veins exist in a water jacket inner cavity, collapsibility is good, cleaning is easy, and the cleanliness degree of the inner cavity is high; the core making efficiency of the cold core box process is high, theamine catalytic curing process is adopted, the core making efficiency is high, and the sand core is suitable for large-scale production; and by means of two sand mixing formulas, through a large batch of tests, it is shown that the anti-sintering capacity, the anti-sand-burning capacity and the anti-vein capacity are high.

Description

technical field [0001] The invention belongs to the technical field of casting of engine parts, and in particular relates to an engine integral cylinder head water jacket sand core and a preparation process thereof. Background technique [0002] The foundry industry is the basic industry of the national manufacturing industry. Castings are widely used in the equipment manufacturing industry and are the core components of the equipment manufacturing industry. With the continuous development of these industries and the continuous improvement of customer demand, the requirements for the overall stability, durability and economy of the engine are getting higher and higher, so the quality requirements for engine castings are becoming more and more stringent. [0003] The cooling effect of the engine has a significant impact on the service life of the engine. The quality of the inner cavity of the water jacket of the engine cylinder head casting has a significant impact on the coo...

Claims

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Application Information

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IPC IPC(8): B22C9/10B22C9/24B22C1/22B22C1/02B22C5/04
CPCB22C1/02B22C1/22B22C5/0409B22C9/10B22C9/24
Inventor 薛庆云曹月山李清震曹恒成
Owner SINO TRUK JINAN POWER