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Small-capacity master alloy casting system

A technology of casting system and master alloy, which is applied to equipment for feeding molten metal into casting molds, ingot workshops, foundry workshops, etc. The effect of reducing the diversion plug, improving the purity and reducing the production cost

Inactive Publication Date: 2016-07-13
INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the master alloy casting systems used in a smelting process are composed of molds, diverters, heat preservation risers, diversion plugs, etc. Most of the master alloy round ingots produced have upper looseness, shrinkage cavity defects, and poor surface quality , there are many inclusions inside the round ingot, etc.

Method used

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described below in conjunction with preferred embodiments.

[0023] Such as figure 1 As shown, the present invention can produce the small-capacity master alloy casting system of high-quality master alloy mainly by the prefabricated tundish with zirconia filter sheet and three inclined planes inside, straight face, refractory shunt (such as image 3 shown), embedded heating riser (such as Figure 4 shown), ingot mold (such as Figure 5 shown), refractory floor (such as Figure 6 shown) composition. The square four-hole shunt is connected with the embedded heating riser, and the embedded heating riser and the ingot mold are connected with refractory mud.

[0024] The three surfaces inside the prefabricated tundish away from the nozzle are inclined surfaces, and the side close to the nozzle is a vertical surface, such as figure 2 As shown, the porosity of the zirconia filter in the tundish is 10ppi, su...

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Abstract

The invention discloses a small-capacity master alloy casting system.The whole system is mainly composed of a prefabricated tundish, a square four-hole diverter, an embedded exothermic riser, an ingot mold and a refractory bottom plate, wherein the prefabricated tundish is provided with a zirconium oxide filter and internally provided with three oblique faces and one vertical face.The square four-hole diverter is connected with the embedded exothermic riser through refractory mortar, and the embedded exothermic riser is connected with the ingot mold through the refractory mortar.The three faces, away from a water gap, inside the prefabricated tundish are the oblique faces, the face, close to the water gap, inside the prefabricated tundish is the vertical face, and the porosity of the zirconium oxide filter in the tundish is 10 ppi.An inner hole of the ingot mold has taper, and the taper is about 3 degrees.According to the casting system, a single-station casting mode is adopted, and the diameter of produced master alloy is 80-90 mm.The casting system can be used for master alloy round bar production with testing or small-lot production as the purpose, produced master alloy round bars are free of shrinkage cavities, and the quality of products is good.

Description

technical field [0001] The invention belongs to the field of casting, and in particular relates to the design of a casting system for producing a small-capacity and high-quality master alloy. Background technique [0002] Superalloys are key materials for the manufacture of advanced gas turbine engines, known as the heart of gas turbines. Obtaining defect-free superalloy castings has always been a primary goal of the gas turbine industry. The forming of high-temperature alloy castings firstly melts the raw materials into high-temperature alloy master alloy ingots, and then remelts the master alloy into the required casting shape. Cast superalloys generally contain a variety of alloying elements, some as many as 10, because there are many active elements in the composition, and the requirements for impurity content are strict. Therefore, the quality of the master alloy is a prerequisite for high-quality superalloy castings. In order to obtain high-quality superalloy master...

Claims

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Application Information

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IPC IPC(8): B22D9/00B22D7/10B22D35/04B22D41/00B22D43/00
CPCB22D9/003B22D7/104B22D35/04B22D41/00B22D43/004
Inventor 刘建民顾晔胡显军
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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