Fusible chaplet for thin-walled iron casting, application method and combined core

An application method and iron casting technology, applied in the direction of casting mold, core, casting mold composition, etc., can solve the problems of incomplete fusion between core support and casting, achieve good anti-oxidation effect, prevent sand core deformation, and improve fusion effect Effect

Pending Publication Date: 2019-01-29
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 of incomplete fusion between the core support and the casting in the prior art, and provide

Method used

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  • Fusible chaplet for thin-walled iron casting, application method and combined core
  • Fusible chaplet for thin-walled iron casting, application method and combined core
  • Fusible chaplet for thin-walled iron casting, application method and combined core

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1:

[0051] See Figure 1 to Figure 6 , A fusible core support for thin-walled iron castings; the fusible core support includes an inner copper body 11 and an outer tin layer 12, the outer tin layer 12 is a layered object wrapped around the inner copper body 11; The inner copper body 11 is made of copper, the outer tin layer 12 is made of tin, and the mass of the inner copper body 11 is greater than the mass of the outer tin layer 12.

Example Embodiment

[0052] Example 2:

[0053] The basic content is the same as Example 1, the difference is:

[0054] The inner copper body 11 includes an upper support 2, a connecting column 3 and a lower support 4, and the bottom surface of the upper support 2 is vertically connected to the top surface of the lower support 4 through the connecting column 3; the upper support 2 The cross section of the lower support 4 is circular, elliptical, triangular or polygonal. Preferably, the diameter of the connecting column 3 is larger than the thickness of the upper support 2 and the lower support 4.

[0055] A composite core in which fusible core supports for thin-walled iron castings are located. The composite core includes a water jacket core 5, a round rod core 6 and a core support 1. The number of the water jacket core 5 is one, and the round rod core 6. The number of core supports 1 is multiple, and the round rod cores 6 and the core supports 1 correspond one-to-one; the top surface of the upper wate...

Example Embodiment

[0059] Example 3:

[0060] The basic content is the same as Example 1, the difference is:

[0061] In the fusible core support, the mass ratio of the inner copper body 11 is 99.90%-99.95%, and the mass ratio of the outer tin layer 12 is 0.05%-0.1%.

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PUM

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Abstract

A fusible chaplet for a thin-walled iron casting comprises an inner copper body and an outer tin layer wrapping the exterior of the copper body. The inner copper body is made of copper, and the outertin layer is made of tin; the inner copper body comprises a binding post, and an upper supporting seat and a lower supporting seat which are vertically connected to the two ends of the binding post; acombined core comprises an upper water jacket core, round bar cores and chaplets, and one upper water jacket core is provided; a plurality of round bar cores and chaplets are provided, and the roundbar cores correspond to the chaplets one by one; the top surface of the upper water jacket core is provided with a plurality of core units arranged continuously, and one round bar core is arranged above each core unit correspondingly; and one chaplet is arranged between each round bar core and each core unit. According to the design, not only can the more complete fusion between the chaplets and the casting be ensured, but also impurities are not introduced; and the anti-oxidation effect is better.

Description

technical field [0001] The invention relates to a core brace, which belongs to the field of casting, and in particular to a fusible core brace for thin-walled iron castings, an application method, and a combined core, which is specifically suitable for improving the fusion effect of the core brace and the casting without introducing impurities. 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 CN105215294A, and the application publication date is January 6, 2016. The invention patent application discloses a core support, which includes a core column, a pair of bases and connectors. The core column includes oppositely arranged first ends and At the second end, a pair of bases are respectively detachably connected to the first end and the second end, and...

Claims

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Application Information

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IPC IPC(8): B22C21/14B22C9/10C25D5/24C25D7/00
CPCC25D5/34C25D7/00B22C9/103B22C9/108B22C21/14
Inventor 涂欣达赵旭一王东喻平唐民峰袁福安王明秀
Owner DONGFENG COMML VEHICLE CO LTD
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