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Drilling Cooling Cylinder Head Pot Renovation Technology

A cooling, cylinder head technology, used in manufacturing tools, metal processing equipment, arc welding equipment, etc., can solve the problems of complex cylinder head structure, many internal holes, and uneven wall thickness.

Inactive Publication Date: 2017-02-01
南通迪施有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the cylinder head is complex, with many internal channels and uneven wall thickness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0023] A kind of refurbishment process of drilling and cooling cylinder head pot cutting, comprising the following steps:

[0024] (1) Take the plane of the cylinder head and the inner hole of the assembly as the reference to adjust the plane and circle on the vehicle, so that the concentricity and flatness are 0.2mm;

[0025] (2) Defects of pre-turned combustion chamber: According to the shape of the workpiece, rough turn the combustion chamber, and the rough turning position is from the bottom of the combustion chamber slope to the junction R of the inner diameter of the combustion chamber and the sealing surface, and all defects are required to be completely removed;

[0026] (3) Cutting pot of combustion chamber: Generally, the position of cutting pot is set from the front end of the cooling hole to the edge of the starting valve hole, and the depth of cutting pot is until the cooling hole is exposed;

[0027] (4) Process the filler rod according to the size of the cooling...

specific Embodiment 2

[0034] A kind of refurbishment process of drilling and cooling cylinder head pot cutting, comprising the following steps:

[0035] (1) Take the plane of the cylinder head and the inner hole of the assembly as the reference to adjust the plane and circle on the vehicle, so that the concentricity and flatness are 0.2mm;

[0036] (2) Defects of pre-turned combustion chamber: According to the shape of the workpiece, rough turn the combustion chamber, and the rough turning position is from the bottom of the combustion chamber slope to the junction R of the inner diameter of the combustion chamber and the sealing surface, and all defects are required to be completely removed;

[0037] (3) Cutting basin of combustion chamber: Generally, the position of cutting basin is set from the front end of the cooling hole to the edge of the starting valve hole, and the depth of cutting basin is until 1 / 3 of the cooling hole is reserved;

[0038] (4) Process the filler rod according to the size ...

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Abstract

The invention discloses a basin cutting and renovation process for a borehole-cooling type cylinder cover. The basin cutting and renovation process comprises the following steps that lathing is conducted, wherein correction and adjustment are conducted on a plane and a circle with a plane of the cylinder cover and an assembly inner bore serving as criteria; defects of a combustion chamber are lathed in advance; basin cutting is conducted on the combustion chamber; filling bar materials are machined according to the size of a cooling hole; build up welding is conducted by a welder through gaskets; build up welding is conducted on the combustion chamber of the cylinder cover through a union melt welding method; annealing treatment is conducted; machining is carried out. According to the basin cutting and renovation process for the borehole-cooling type cylinder cover, the combustion chamber is renovated in the mode that firstly, the defects of the surface of the combustion chamber of the cylinder cover and the defects inside the cooling water hole are overcome through lathing in a machining mode, then recovery is realized through build up welding, and machining is carried out again finally, the novel basin cutting and renovation process is applied so that the problem that the combustion chamber of the borehole-cooling type cylinder cover has large-area defects can be solved, and the service life of the borehole-cooling type cylinder cover can be prolonged to be as long as that of a new borehole-cooling type cylinder cover through the novel basin cutting and renovation process.

Description

technical field [0001] The invention specifically relates to a refurbishment process for drilling and cooling cylinder heads by cutting pots. Background technique [0002] The cylinder head is one of the fixed parts of the diesel engine and an integral part of the combustion chamber of the diesel engine. The structure of the cylinder head is complex, with many internal channels and uneven wall thickness. Its bottom surface is directly in contact with high temperature and high pressure gas, and is eroded by high temperature, high pressure and gas periodically. Therefore, the cylinder head is subjected to high mechanical and thermal loads. In addition, the uneven wall thickness, uneven cooling and discontinuity of the cross-section metal will cause mechanical stress, thermal stress and stress concentration. [0003] The cylinder head body is a very rigid, thick metal body that withstands high mechanical loads. There are many cooling water holes drilled near the wall of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P6/00B23K9/18B23K9/04
CPCB23P6/04
Inventor 刘海勇曹斌李康王亮徐明成国荣
Owner 南通迪施有限公司
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