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Melting dosing method in two curcibles utilized in procedure of melting and pouring nonferrous alloy

A non-ferrous alloy, quantitative feeding technology, applied in crucible furnaces, equipment for supplying molten metal, metal processing equipment, etc., can solve problems such as energy and material waste, reduce melting costs, and facilitate the control of pouring temperature.

Inactive Publication Date: 2005-01-12
TSINGHUA UNIV
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Problems solved by technology

[0003] In order to solve the waste of energy and materials caused by a single crucible melting furnace, the present invention proposes a double-crucible melting quantitative feeding method in the non-ferrous alloy melting and pouring process, which is characterized in that: the melting of the alloy and the heat preservation pouring are respectively performed by two Set of independent crucible to complete, the diameter of the cross-section of the melting crucible is larger than the cross-sectional diameter of the heat-preservation pouring crucible, a sensor for feedback liquid level information is set in the heat-preservation pouring crucible, and a liquid is pumped into the middle of the heat-preservation pouring crucible in the melting crucible Feed pump, the pouring feed pump that pumps the liquid out of the pouring is installed in the heat preservation pouring crucible. The specific quantitative feeding method is as follows:

Method used

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  • Melting dosing method in two curcibles utilized in procedure of melting and pouring nonferrous alloy

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with accompanying drawing.

[0009] The melting and heat-preservation casting of alloy are respectively finished by two sets of independent crucibles, and the diameter of melting crucible 3 cross-sections is greater than the cross-section diameter of heat-preservation pouring crucible 7, (for example, the diameter of melting crucible 3 cross-sections is 7 cross-sections of heat-preservation pouring crucibles 2-5 times of the diameter) A sensor 6 for feeding back liquid level information is set in the heat-preservation pouring crucible; The pouring feed pump 5 that pours out, the specific quantitative feeding method is as follows:

[0010] The heating element 1 simultaneously heats the melting crucible 3 and the heat-preserving pouring crucible 7. During the melting and pouring process of non-ferrous alloys, when the height of the metal liquid level in the heat-preserving pouring crucible 7 is lower tha...

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Abstract

A dual-crucible smelting and quantitative feeding method for smelting and casting the non-ferrous alloy features that a large-diameter crucible and a small-diameter crucible are respectively used for smelting and temp holding, when the level height in small crucible is lower than the height setting the molten alloy is pumped from the large crucible into small one, and the molten alloy is them pumped in mould.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal melting. Background technique [0002] At present, one crucible is used for melting non-ferrous metals. Even if the magnesium alloy melting crucible is divided into a melting zone and a thermal insulation pouring zone, the crucibles between the two zones are also connected to each other. When using screw or vane feeding pump feeding process for alloy casting, there are certain requirements for the height of the metal liquid level. When the liquid level exceeds the allowable range of the process, the feeding accuracy of the feeding pump will be greatly reduced and affect the quality of the casting. When a single crucible is used for melting and heat preservation, the height of the metal liquid level must be guaranteed when pouring and feeding, that is, the amount of metal liquid in the crucible must be guaranteed. When the production batch is small and the amount of metal required is smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D21/04B22D39/02F27B14/00
Inventor 熊守美刘文辉
Owner TSINGHUA UNIV
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