CN211588459U

CN211588459U - One-furnace multi-ingot casting assembly for vacuum induction furnace

Info

Publication number: CN211588459U
Application number: CN202020011016.3U
Authority: CN
Inventors: 于明光; 张津业; 李新; 王思成
Original assignee: Angang Steel Co Ltd
Current assignee: Angang Steel Co Ltd
Priority date: 2020-01-04
Filing date: 2020-01-04
Publication date: 2020-09-29
Anticipated expiration: 2030-01-04

Abstract

The utility model relates to a one-furnace multi-ingot casting assembly for a vacuum induction furnace, which comprises an ingot mould, a platform and a hydraulic device, wherein more than two ingot moulds are placed on the platform in a straight line, a funnel brick, an observation port and a heat preservation cap brick are coaxially placed on each ingot mould from top to bottom in sequence, and a lifting lug is fixed outside the ingot mould; the heat-insulating cap brick is of a tubular structure made of clay refractory materials, and a steel sleeve is sleeved outside the heat-insulating cap brick; the outside of the funnel brick is bound by iron wires; the observation port is made of a seamless steel pipe with a major arc cross section; the platform may be driven in translation by hydraulic means. The advantages are that: the equipment is simple, and the lumber recovery is high, and the pouring is stable, and difficult bleed-out, the security is high, has realized the function of a stove polyblock multicomponent, satisfies specific steel grade demand, can effectually satisfy the demand of production and scientific research and development.

Description

One-furnace multi-ingot casting assembly for vacuum induction furnace

Technical Field

The utility model relates to a many steel ingots continuous casting device especially relates to a many ingot of a stove casting subassembly that is used for vacuum induction furnace.

Background

The smelting in a vacuum induction furnace is a metallurgical process for melting, casting and molding materials such as common steel, special steel, high-temperature alloy and the like under the condition of vacuum or protective atmosphere by an electromagnetic induction principle. The pouring mode of vacuum induction smelting generally all adopts the die casting technique, and the pouring mode of vacuum induction furnace is smelted different with traditional induction furnace, and induction furnace smelting generally adopts the end pouring mode to carry out the casting moulding of molten steel, and the end pouring mode is through well notes pipe, reposition of redundant personnel brick, and the molten steel that will satisfy pouring temperature carries out the mode of pouring from ingot mold bottom, and vacuum induction furnace is because the restriction of the internal volume of vacuum chamber, is not suitable for the end pouring, and conventional vacuum furnace goes up annotates the device and includes: the casting funnel is positioned above the heat-insulating cap brick, the heat-insulating cap brick is positioned above the ingot mold, and the ingot mold is placed on the chassis. And the central lines of the pouring funnel, the heat-insulating cap brick and the ingot mould are aligned, and the molten steel is poured into the ingot mould through a hole at the bottom of the pouring funnel. By adopting the casting mode, when the steel ingot liquid is injected into the steel ingot mould through the casting funnel, the molten steel is easy to generate splashing and flow column segregation, the surface quality of the steel ingot is influenced, the continuous tissue production is inconvenient, the production efficiency is lower, and the casting of one steel ingot can only be completed in one furnace. With the requirements of scientific research and production, a furnace of molten steel is subjected to a plurality of steel ingot pouring, and the function of realizing one furnace of multi-component is urgently needed to be developed.

Chinese patent (patent No. CN201520920129.4) discloses a casting device for vacuum induction furnace, which is named as 'one furnace and two ingots for vacuum induction furnace', the technical scheme can not observe the casting condition of molten steel, and the condition that two steel ingots are 'big one by small' is easy to occur; the method is only suitable for casting two steel ingots, and only one component can be cast; bleed-out and damage to smelting equipment are easy to occur.

Chinese patent No. 200720037996.9 discloses a vacuum induction melting steel ingot casting assembly, when the assembly is used for casting steel ingots, the flow at the bottom of the steel ingots is uniform, so that molten steel stably rises, the surface of the steel ingots is solidified smoothly, surface treatment is not needed, and the yield is improved. However, the components need to be assembled in a vacuum chamber, so that continuous production is inconvenient to organize, and the production efficiency is low; preheating cannot be carried out in advance, and cold mold casting influences the quality of cast ingots; the steel is easy to leak during vacuum casting to damage smelting equipment.

Disclosure of Invention

For overcoming the not enough of prior art, the utility model aims at providing a many ingots of a stove casting subassembly for vacuum induction furnace can realize the continuous casting of a stove of a plurality of steel ingots of molten steel, can carry out the pouring of different compositions simultaneously, and the subassembly can be whole observes the pouring condition of molten steel in the steel ingot mould.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a one-furnace multi-ingot casting assembly for a vacuum induction furnace comprises ingot molds, a platform and a hydraulic device, wherein more than two ingot molds are placed on the platform in a straight line, a funnel brick, an observation port and a heat preservation cap brick are coaxially placed on each ingot mold from top to bottom in sequence, and lifting lugs are fixed outside the ingot molds; the heat-insulating cap brick is of a tubular structure made of clay refractory materials, and a steel sleeve is sleeved outside the heat-insulating cap brick; the outside of the funnel brick is bound by iron wires; the observation port is made of a seamless steel pipe with a major arc cross section.

The platform is driven to translate through a hydraulic device.

The hydraulic device is a hydraulic cylinder.

And a lifting lug is fixed outside the steel sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

a a stove multi-ingot casting subassembly equipment for vacuum induction furnace is simple, and the lumber recovery is high, and the pouring is stable, is difficult for the bleed-out, and the security is high, has realized the function of a stove multi-ingot multicomponent, satisfies specific steel grade demand, can effectually satisfy the demand of production and scientific research and development. The whole pouring process of conventionality is confined, and operating personnel can't see the pouring condition below the funnel brick, so need operating personnel to possess very much pouring experience and just can guarantee the pouring quality, and this device can observe whole pouring process through the viewing aperture, and the control is poured the terminal point, and the very first time discovers unusual problem, realizes that whole pouring process is visual, controllable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-funnel brick 2-viewing aperture 3-heat preservation cap brick 4-steel bushing 5-ingot mould 6-lifting lug 7-platform 8-hydraulic device.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Referring to fig. 1, a one-furnace multi-ingot casting assembly for a vacuum induction furnace includes an ingot mold 5, a platform 7, a hydraulic device 8, more than two ingot molds 5 are placed on the platform 7 in a straight line, fig. 1 shows 4 ingot molds 5, according to the number of the ingot molds 5 to be cast; a funnel brick 1, an observation port 2 and a heat preservation cap brick 3 are coaxially arranged on each ingot mould 5 from top to bottom in sequence, and a lifting lug 6 is fixed outside each ingot mould 5; the insulating cap brick 3 is a tubular structure made of clay refractory materials, can ensure feeding of a poured steel ingot and prevent the steel ingot from generating a shrinkage cavity defect; a steel sleeve 4 is sleeved outside the heat-insulating cap brick 3 to prevent the heat-insulating cap from cracking due to heating, so that molten steel flows out and leaks; the outside of the funnel brick 1 is bound by iron wires to prevent cracking after contacting with high-temperature molten steel; the observation port 2 is made of a seamless steel pipe with a major arc cross section, and can be made of an 3/4 circular seamless steel pipe, and an operator can comprehensively observe the condition that molten steel is poured into the ingot mold 5 through the opening of the observation port 2 so as to adjust the pouring speed and the pouring end point; the platform 7 can be driven by the hydraulic device 8 to translate, and the pouring of a plurality of steel ingots is completed.

The hydraulic device 8 is a hydraulic cylinder. In order to ensure the moving stability of the platform 7, the platform 7 can be placed on a roller way, and the edge of the platform 7 is fixed with a piston rod of a hydraulic cylinder. The lifting lug 6 is fixed outside the steel sleeve 4, so that the steel sleeve is convenient to take and place.

When the molten steel is poured, a first ingot mould 5 which is arranged in a straight line is poured, the pouring speed and the pouring end point are controlled through the observation port 2, after the heat-insulating cap brick 3 is fully poured by the molten steel, a first ingot is poured, the platform 7 is moved through the hydraulic device 8 on the platform 7, the next ingot is poured, other ingots are poured in sequence until all the ingots are poured, and meanwhile, the components can be adjusted, so that one-furnace multi-ingot and multi-component smelting pouring is completed.

Claims

1. A one-furnace multi-ingot casting assembly for a vacuum induction furnace is characterized by comprising ingot molds and a platform, wherein more than two ingot molds are placed on the platform in a straight line, a funnel brick, an observation port and a heat preservation cap brick are coaxially placed on each ingot mold from top to bottom in sequence, and lifting lugs are fixed outside the ingot molds; the heat-insulating cap brick is of a tubular structure made of clay refractory materials, and a steel sleeve is sleeved outside the heat-insulating cap brick; the outside of the funnel brick is bound by iron wires; the observation port is made of a seamless steel pipe with a major arc cross section.

2. A furnace multi-ingot casting assembly for a vacuum induction furnace as claimed in claim 1, wherein the platform is hydraulically driven in translation.

3. A furnace multi-ingot casting assembly for a vacuum induction furnace as claimed in claim 2, wherein the hydraulic means is a hydraulic cylinder.

4. The furnace multi-ingot casting assembly for the vacuum induction furnace as claimed in claim 1, wherein the steel sleeve is externally fixed with lifting lugs.