Casting burning-on device and method

A casting and melting pool technology, applied in the field of casting repairing equipment, can solve the problems of inclusions, large size, scrapping of castings, etc., and achieve the effect of avoiding overall scrapping
CN109202041AInactive Publication Date: 2019-01-15DONGFANG TURBINE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
DONGFANG TURBINE CO LTD
Publication Date
2019-01-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a casting burning-on device and method, and belongs to the technical field of casting of aductile iron castings. The casting burning-on device comprises an overflow passage anda flushing supplementing molten pool; the overflow passage comprises a sprue end and a water outlet end used for aligning at a lower end opening of a defect portion, and the water outlet end is provided with a first sealing member for sealing a connection portion of the water outlet end and a casting; the flushing supplementing molten pool is arranged at an upper end opening of the defect portion;the flushing supplementing molten pool is provided with an opening end and a connecting end which are oppositely arranged, and the connecting end is used for being connected with the defect portion;the connecting end is further provided with a second sealing member for sealing a connecting portion of the flushing supplementing molten pool and the casting; and the height of the horizontal surfaceof the sprue end is higher than the height of the horizontal plane of the upper end opening of the defect portion. Through the casting burning-on device, the entire defect portion can be filled withmolten metal until the molten metal enters the flushing supplementing molten pool, the molten metal in the flushing supplementing molten pool can achieve the feeding effect, and the sufficient moltenmetal in the defect portion is guaranteed.
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Description

technical field

[0001] The invention relates to the technical field of casting of ductile iron castings, in particular to a casting repairing device and method. Background technique

[0002] For some large-scale and super-thick and large-section (β‰₯300mm) ductile iron castings, local shrinkage, shrinkage, inclusions, lack of pouring or other reasons are prone to large-scale defects, and conventional methods such as repair welding cannot be used to achieve defects. repair, resulting in the casting being scrapped as a whole. In order to repair such defects of ductile iron castings, a safe, convenient and low-cost repair method is urgently needed to solve such problems under the premise of meeting relevant technical conditions. Contents of the invention

[0003] The present invention provides a casting repairing device and method, aiming to solve the above-mentioned problems existing in the casting repairing device and method in the prior art.

[0004] A casting welding repa...

Claims

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