Core assembly and core assembling technique thereof

A technology of core group and core assembly, which is applied in the direction of cores, manufacturing tools, metal processing equipment, etc., can solve problems such as easy generation of air holes, large operation difficulty, difficulty in ensuring casting size, etc., to reduce casting defects and increase operability , the effect of high dimensional accuracy

Inactive Publication Date: 2009-06-17
SUZHOU MINGZHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is difficult to ensure the size of the casting, and has greater difficulty in operation. At the same time, in the process of bonding each valve cavity core (11) with a core adhesive, defects such as pores are prone to occur, making the valve body produced by this process High scrap rate of castings

Method used

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  • Core assembly and core assembling technique thereof
  • Core assembly and core assembling technique thereof
  • Core assembly and core assembling technique thereof

Examples

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Embodiment Construction

[0013] like figure 1 The shown core group includes a plurality of cavity cores 21 which are provided with series connection holes and connected in series through the series connection holes, upper shape cores 22 and lower shape cores 22 respectively arranged at both ends of the plurality of cavity cores 21 connected in series. Outline core 23, successively pass through upper shape core 22, multiple cavity cores 21, serial connector 28 of lower shape core 23, be arranged on the two ends of serial connector 28 and be used for fastening serial connection in serial connector 28 on the upper profile core 22, multiple cavity cores 21, fasteners 24 of the lower profile core 23, respectively arranged on the upper profile core 22, multiple cavity cores 21, left side edge cores 25 on both sides of the lower profile core 23 And right side side core 26. like image 3 As shown, the connecting parts between the upper profile core 22, the right side core 26, the lower profile core 23, and ...

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Abstract

The invention relates to a core assembly, which comprises a plurality of cavity cores which are orderly connected in series by cascading holes on the cavity cores, an upper outline core and a lower outline core arranged at two ends of the plurality of the serial cavity cores respectively, a cascading piece passing through the upper outline core, the plurality of the cavity cores and the lower outline core in turn, and a left side core and a right side core arranged at two sides of the upper outline core, the plurality of the cavity cores and the lower outline core respectively, wherein a sealed cavity for accommodating pouring liquid is formed among the upper outline core, the right side core, the lower outline core, the left side core and the plurality of the cavity cores. The invention also relates to core assembling technology. The core assembly and the core assembling technology make a casting have higher size accuracy, reduce the casting defect caused by sticking, and increase operability of the core assembling process at the same time.

Description

technical field [0001] The invention relates to a core group; the invention also relates to a core assembly process of the core group. Background technique [0002] For valve body castings with a very complex inner cavity, a lot of sand cores are often required to be combined to form. It is very difficult to assemble these sand cores under the premise of ensuring dimensional stability and high operability. Now There are core-assembling methods in the art such as figure 1 As shown: it includes an integral valve cavity core (12) in the middle, and uses it as a base cavity core, and a plurality of independent valve cavity cores (11) are respectively assembled on the base core by means of glue. This process is difficult to ensure the size of the casting, and has greater difficulty in operation. At the same time, in the process of bonding each valve cavity core (11) with a core adhesive, defects such as pores are prone to occur, making the valve body produced by this process Ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10
Inventor 杨林龙王玉平
Owner SUZHOU MINGZHI TECH
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