Method for cutting 35CrMnSi casting dead head

A casting and gas cutting technology is applied in the field of cutting 35CrMnSi casting risers, which can solve problems such as cracks in 35CrMnSi castings, and achieve the effect of ensuring quality and avoiding cracks.

Inactive Publication Date: 2016-04-13
WUXI LINGTONG CASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For above-mentioned existing problem, the present invention provides a kind of method of cutting 35CrMnSi casting riser, often can produce crack on the 35CrMnSi casting of cutting rise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The method for cutting the riser of 35CrMnSi casting that the embodiment of the present invention 1 provides comprises:

[0022] (1) Prepare cutting tools;

[0023] (2) Start the gas cutting tool, and preheat the riser of the 35CrMnSi casting;

[0024] (3) When the temperature of the 35CrMnSi casting riser reaches 600°C, the 35CrMnSi casting riser is cut, thereby completing the cutting work of the 35CrMnSi casting riser;

[0025] Among them, the cutting tool is a gas cutting torch.

[0026] In the method for cutting a riser of a 35CrMnSi casting provided in Example 1 of the present invention, the gas cutting torch is an oxygen-natural gas cutting torch.

[0027] In the method for cutting the riser of 35CrMnSi casting provided by Example 1 of the present invention, the purity of oxygen used in the gas cutting torch is greater than 99%.

[0028] In the method for cutting the riser of a 35CrMnSi casting provided by Example 1 of the present invention, during preheating, ...

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PUM

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Abstract

The invention discloses a method for cutting a 35CrMnSi casting dead head, and belongs to the field of casting. The method for cutting the 35CrMnSi casting dead head comprises the steps that 1, a cutting tool is prepared; 2, a gas cutting tool is started, and the 35CrMnSi casting dead head is preheated; and 3, when the temperature of the 35CrMnSi casting dead head ranges from 580 DEG C to 620 DEG C, the 35CrMnSi casting dead head is cut, and therefore cutting work on the 35CrMnSi casting dead head is completed. A gas cutting gun is adopted as the cutting tool. According to the method for cutting the 35CrMnSi casting dead head, the problem that when a cutting method in the prior art is adopted for cutting the 35CrMnSi casting dead head, cracks are often generated on a 35CrMnSi casting at the cut dead head position is solved, and therefore cracks are avoided, and the quality of the 35CrMnSi casting is guaranteed.

Description

technical field [0001] The invention relates to a cutting method, in particular to a method for cutting risers of 35CrMnSi castings. Background technique [0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into the pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling, it is polished and other subsequent processing methods. , the obtained object has a certain shape, size and performance. [0003] When molding according to the casting, in order to prevent shrinkage cavity, shrinkage porosity, exhaust and slag collection, a riser is usually provided, so the riser is an indispensable part. [0004] Since the riser is not the shape of the casting, the riser will be cut off after the sand cleaning work is completed. When the riser of the 35CrMnSi casting is cut by the cutting method in the prior art, cracks often occur on the 35CrMnSi casting at the position of the cut...

Claims

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Application Information

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IPC IPC(8): B22D31/00
CPCB22D31/00
Inventor 金松李如康
Owner WUXI LINGTONG CASTING CO LTD
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