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Rotary switch type drawdown casting device

A technology of rotary switch and heating device, applied in foundry equipment, foundry workshop, metal processing equipment, etc., can solve the problems of unsatisfactory fluid flow controllability and safety, inability to effectively control fluid flow, low operational flexibility, etc. Significant economic and social effects, small footprint, and broad market prospects

Active Publication Date: 2011-06-08
CHINALCO MATERIALS APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to achieve gas protection, isolate the melt, and prevent oxidation, it is necessary to improve the airtightness requirements of the furnace body, so the operation processes such as feeding, observation, melt transfer, and casting are limited, and the operating flexibility is low.
[0005] In the equipment involved in the above technical solutions, the control of the liquid flow is realized by lowering the top or pressing the stopper rod up, and the controllability and safety of the liquid flow are not ideal.
The top-down stopper cannot effectively control the liquid flow, while the top-press stopper affects the feeding operation and reduces work efficiency

Method used

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Embodiment

[0024] The non-vacuum melting and casting of Cu-Cr-Zr alloy slab is carried out by using the equipment of the present invention. The composition ratio is Cr: 0.45wt%, Zr: 0.15wt%, Mg: 0.05wt%, and the rest is copper, as shown in Table 1. The upper limits of burning loss are respectively: Cr: 10%, Zr: 15%, Mg: 20%, Cu: 2%.

[0025] First clean the furnace body, dry it, and confirm that the liquid flow control device is closed and the cooling water is working normally. Put the ingredients into the furnace, close the furnace cover, pass in the protective gas, and send electricity.

[0026] Gradually adjust the heating power of electricity transmission, observe the melting condition of the melt, after all the ingredients are melted, adjust the power and enter the refining stage. Deoxidize, degas and alloy. When the alloy composition needs to be strictly controlled, samples are taken from the feeding window of the furnace cover, and the composition is quickly inspected by direct ...

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Abstract

The invention provides a rotary switch type underfeed fusion casting device, which is provided with a graphite pedestal on the bottom of a crucible, wherein the graphite pedestal is provided with a process hole and is contacted with a pouring pipe in the vertical direction, the center of the pouring pipe is provided with a flow passage hole, and the pouring pipe and the graphite pedestal are matched with each other at different positions so that the flow passage hole of the pouring pipe and the process hole of the graphite pedestal are communicated or closed with each other to achieve the flow control; the outer edge of the pouring pipe forms a hexagonal structure and is sleeved with a turning handle, the bottom of a furnace is provided with a stud, a supported flange is sleeved on the stud, and center steps of the supported flange lock a joint sleeve; after the stud is sleeved with the supported flange, the stud is also sleeved with a pressure spring and is locked tightly by an adjusting chain wheel; and the lower part of the pouring pipe is closely matched with a crystallizer. The rotary switch type underfeed fusion casting device is provided with a stable liquid flow control mechanism and an atmosphere protecting system, is convenient to achieve the integrated production of fusion casting, temperature preservation, and casting; besides, the liquid control is stable, even and reliable, thus the rotary switch type underfeed fusion casting device is applicable to preparing pure metal, oxidizable metal and alloy billets under a non-vacuum condition.

Description

technical field [0001] The invention relates to a rotary switch type down-draw melting and casting device, which belongs to the technical field of non-ferrous metal processing. Background technique [0002] Easily oxidized alloys are usually prepared by vacuum equipment, but the production efficiency is low. In addition, the vacuum equipment usually adopts fixed mold casting, and the vacuum needs to be broken during semi-continuous casting, and the weight of the ingot is limited. Therefore, non-vacuum casting equipment and technology have received high attention in the field of copper alloy processing. [0003] Due to the consideration of atmosphere protection, the down-drawing furnace is easier to realize the integration of melting, heat preservation and casting. Patents 200610085210.0 (method for non-vacuum smelting and casting of Cu-Cr-Zr alloys), 200610085209.8 (equipment for non-vacuum smelting and casting of oxidizable metals and alloys), 200610096327.9 (equipment fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D47/00B22D21/02
Inventor 李华清向朝建朱永兵陈忠平
Owner CHINALCO MATERIALS APPL RES INST CO LTD
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