Chaplet for engine cylinder block casting, application process of chaplet and combination core with chaplet

A technology for engine cylinder blocks and core supports, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of high heat required for fusion, easy cracks, and poor fusion quality, so as to reduce heat, avoid cracks, The effect of high fusion quality

Pending Publication Date: 2019-01-25
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems existing in the prior art that the heat required for fusion is relatively large, the quality of fusion is poor, and cracks are easy to occur, and to provide a fusion fusion that requires little heat, has good fusion quality, and is not prone to cracks. Core struts for casting engine cylinder blocks and their application processes, and the combined cores

Method used

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  • Chaplet for engine cylinder block casting, application process of chaplet and combination core with chaplet
  • Chaplet for engine cylinder block casting, application process of chaplet and combination core with chaplet
  • Chaplet for engine cylinder block casting, application process of chaplet and combination core with chaplet

Examples

Experimental program
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Effect test

Embodiment 1

[0052] see Figure 1 to Figure 6 , a core support for engine cylinder casting, including an upper support seat 2, a middle connecting rod 3 and a lower support seat 4, the middle part of the bottom surface of the upper support seat 2 passes through the top surface of the middle connecting rod 3 and the lower support seat 4 The middle part is connected, the upper support base 2 is provided with a plurality of through-through upper fluxing holes 5, and the lower support base 4 is provided with a plurality of through-through lower fluxing holes 6; the upper support base 2, The melting points of the materials used for the middle connecting rod 3 and the lower support seat 4 are all lower than the temperature of the molten iron injected during casting filling. Preferably, the upper flux holes 5 are evenly arranged around the junction of the upper support seat 2 and the middle connecting rod 3 , and the lower flux holes 6 are evenly arranged around the junction of the lower support ...

Embodiment 2

[0056] Basic content is the same as embodiment 1, the difference is:

[0057] The number of the upper fluxing holes 5 is four, and they are evenly arranged along the same circumference; the lower fluxing holes 6 include nine lower outer fluxing holes 61 and six lower inner fluxing holes 62, and all the lower outer fluxing holes 62 The melting holes 61 are evenly arranged along the same circumference, all the lower inner fluxing holes 62 are evenly arranged along the same circumference, the radius of the circumference along the lower outer fluxing holes 61 is greater than the radius of the circumference along the lower inner fluxing holes 62, and the lower outer fluxing holes The circumference along the hole 61 and the circumference along the lower inner fluxing hole 62 are concentric circles.

Embodiment 3

[0059] Basic content is the same as embodiment 1, the difference is:

[0060] The lower support base 4 placed on the top surface of the lower tank water jacket core 7 means that the lower support base 4 is embedded in the lower support groove 75 provided on the top surface of the lower tank water jacket core 7 .

[0061] The contact between the upper support base 2 and the bottom side circumference 82 of the core head 81 means that the top surface of the upper support base 2 is in contact with the upper support point 83 provided on the bottom side circumference 82 of the core head 81 in the round rod core 8 .

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PUM

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Abstract

A chaplet for engine cylinder block casting comprises an upper support, a middle connection rod and a lower support. The bottom middle of the upper support is connected with the top middle of the lower support via the connection rod; the upper support is provided with a plurality of upper fluxing holes that run through the upper support; the lower support is provided with a plurality of lower fluxing holes that run through the lower support; melting points of all materials to manufacture the upper support, the middle connection rod and the lower support are lower than the temperature of molteniron injected for mold filling for casting. The chaplet is small in size and requires little heat for melting; melting quality is high; cracks rarely occur.

Description

technical field [0001] The invention relates to a core brace for casting, which belongs to the field of casting, in particular to a core brace for engine cylinder casting and its application process, and the combined core, which is specifically suitable for reducing the heat required for fusion, improving the quality of fusion, and is not easy to produce crack. Background technique [0002] Existing engine cylinder blocks are mostly manufactured by casting. During the manufacturing process, sand cores need to be placed in the sand box first, and then molten iron is injected for casting. [0003] The application publication number is CN102294439A, and the application publication date is December 28, 2011. The invention patent application discloses a special core support for a sand box for a large engine block, which includes a saddle-shaped bottom plate, and the two sides of the bottom plate correspond to Features a dumbbell-shaped post. Although the design has the advantag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C21/14B22C9/10
CPCB22C9/103B22C21/14
Inventor 涂欣达赵旭一王东康明喻平袁福安李智
Owner DONGFENG COMML VEHICLE CO LTD
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