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Making method of supporting wheel weight reducing hole core

A production method and a technology for reducing weight holes, which are applied in the field of foundry processing, can solve the problems of unobstructed, difficult to control, and affect the forming effect of weight reduction holes, and achieve the effect of reducing production costs and improving production efficiency.

Active Publication Date: 2018-08-17
新乡市长城铸钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The supporting roller is a large thick and heavy steel casting, and the size of the weight-reducing hole is small, so it is easy to cause the phenomenon of weight-reducing and empty space during casting. In order to solve this kind of problem, the traditional manufacturing process generally adopts the inner hole Limestone sand is outsourced with chrome ore to solve the problem, but because the hole is deep and small in diameter, it is extremely difficult to control how to coat chrome ore evenly on the outside of limestone sand in actual operation, and the amount of chrome ore often occurs If it is too large, the thickness of the limestone sand layer is not enough, or the amount of chrome ore is too small to completely cover the limestone sand layer, which will affect the final forming effect of the weight loss hole

Method used

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  • Making method of supporting wheel weight reducing hole core
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Embodiment 1

[0012] A manufacturing method for the weight-reducing hole core of a supporting wheel, (1) first lay limestone sand 2 on the bottom of the model box 4, then put the pipe 1 in the mold part of the weight-reducing hole of the model box, and sprinkle the outer ring of the pipe into Chromium ore 3, sprinkle limestone sand inside the pipe, when the outer chrome ore is solidified, lift the pipe up for a certain distance, and then solidify the limestone sand in the chrome ore circle that has solidified, (2) Repeat the above steps , until the size of the required weight-reducing hole of the whole model box is all completed; the diameter of the pipe described in this embodiment is less than the width 40 millimeters of the weight-reducing hole mold; the wall thickness of the pipe described in this embodiment is 2 millimeters.

Embodiment 2

[0014] A manufacturing method for the weight-reducing hole core of a supporting wheel, (1) first lay limestone sand 2 on the bottom of the model box 4, then put the pipe 1 in the mold part of the weight-reducing hole of the model box, and sprinkle the outer ring of the pipe into Chromium ore 3, sprinkle limestone sand inside the pipe, when the outer chrome ore is solidified, lift the pipe up for a certain distance, and then solidify the limestone sand in the chrome ore circle that has solidified, (2) Repeat the above steps , until the size of the required weight-reducing hole of the whole model box is all completed; the diameter of the pipe described in this embodiment is less than the width 40 millimeters of the weight-reducing hole mold; the wall thickness of the pipe described in this embodiment is 2 millimeters.

[0015] The invention can quickly and efficiently complete the molding and manufacturing of the weight-reducing hole core of the supporting wheel, and ensures the ...

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Abstract

The invention discloses a making method of a supporting wheel weight reducing hole core. The making method includes: (1), paving limestone sand at the bottom of a model box, putting a pipe into a weight reducing hole mold portion of the model box, scattering chrome ore around the periphery of the pipe, scatting limestone sand inside the pipe, lifting up the pipe by a certain distance after the chrome ore on the periphery is compacted, and compacting the limestone sand in a chromo ore ring which is already formed; (2), repeating the above steps until size of weight reducing holes needed by thewhole model box is completed fully. By the method, uniform thickness of the chromo ore and strength of the limestone sand are ensured, production efficiency is improved, and production cost is lowered.

Description

technical field [0001] The invention relates to the field of casting processing, in particular to a method for making a weight-reducing hole core suitable for casting support rollers. Background technique [0002] The supporting roller is a large thick and heavy steel casting, and the size of the weight-reducing hole is small, so it is easy to occur the phenomenon of weight-reducing and void-blocking during casting. In order to solve such problems, the traditional manufacturing process generally adopts the inner hole Limestone sand is outsourced with chrome ore to solve the problem, but because the hole is deep and small in diameter, it is extremely difficult to control how to coat chrome ore evenly on the outside of limestone sand in actual operation, and the amount of chrome ore often occurs If it is too large, the thickness of the limestone sand layer is not enough, or the amount of chrome ore is too small to completely cover the limestone sand layer, which will affect th...

Claims

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Application Information

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IPC IPC(8): B22C9/10
CPCB22C9/10
Inventor 许占良袁宗星罗永扬申波
Owner 新乡市长城铸钢有限公司
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