Casting technology of engine cylinder cover and core assembling structure

A technology of engine cylinder head and casting process, applied in casting molding equipment, casting molds, cores, etc., can solve the quality problems that are not well solved, the cleanliness and roughness of the inner cavity are poor, the wall thickness cylinder head air holes, etc. problems, to achieve the effect of reducing porosity defects, reducing the influence of human factors, and high core strength and dimensional accuracy

Inactive Publication Date: 2016-04-13
JINAN FOUNDRY PATTERN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its complex cavity, uneven wall thickness and other characteristics have caused defects such as air holes, trachoma, leakage, poor cleanliness and roughness of t

Method used

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  • Casting technology of engine cylinder cover and core assembling structure
  • Casting technology of engine cylinder cover and core assembling structure
  • Casting technology of engine cylinder cover and core assembling structure

Examples

Experimental program
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Example Embodiment

[0052] The specific implementation method of the present invention is as follows:

[0053] 1. Mold equipment production, according to the company's different equipment conditions, design and manufacture sand molds and sand core molds that meet the equipment requirements and casting process requirements;

[0054] 2. Use the molds and equipment made to shape and core;

[0055] 3. Polish and repair the sand core and sand mold, and after the core is hardened, paint the surface evenly;

[0056] 4. Dry the core and clean the core to ensure that the core sand is intact without any fleshy or defects;

[0057] 5. Put the sand mold II flat on the level ground, place the sand cores in the sand mold II in order, check the relative position of the cores, and clean the scattered sand in the mold;

[0058] 6. Lift the sand mold I to match the sand mold II, and judge whether the sand mold is in place by checking the gap of the parting surface;

[0059] 7. Use bolts to fasten the locking groove and the lo...

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Abstract

The invention discloses a casting technology of an engine cylinder cover and a core assembling structure, and relates to a casting technology. A sand mold is manufactured through the cold core box core manufacturing technology, an intra-cavity inner sand core is manufactured through the precoated sand hot core box core manufacturing technology, vertical casting is carried out after the appearance is locked through sand core discharging, and a good solution is provided for cylinder cover air holes, sand holes, leakage, inner cavities and surface smoothness. By means of implementation of the technology, the casting yield is increased to be more than 98%.

Description

technical field [0001] The invention discloses a casting process and core assembly structure of an engine cylinder head. Background technique [0002] The cylinder head is installed on the top of the cylinder block. It integrates the functions of intake and exhaust, cooling, lubrication and so on. Its bottom plane is also a part of the engine combustion chamber, and it is also an important and key part of the engine. The cylinder head is often in contact with high-temperature and high-pressure gas, and bears a large thermal load and mechanical load. Therefore, it is required to have high air tightness, anti-leakage and high overall strength. At the same time, the precision and roughness of the inner surface are required higher. However, its complex cavity, uneven wall thickness and other characteristics have caused defects such as cylinder head pores, sand holes, leakage, poor cleanliness and roughness of the inner cavity, and veins in the water jacket. The traditional cas...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C9/02B22C9/10
CPCB22C9/22B22C9/02B22C9/108
Inventor 薛祥军赵生彦王崇祯王可云国富忠张承斌郭文海钟章兴
Owner JINAN FOUNDRY PATTERN
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