CN202169360U

CN202169360U - Graphite crystallizer for improving smoothness of inner wall of horizontal continuous casting blank of copper pipe

Info

Publication number: CN202169360U
Application number: CN2011203113431U
Authority: CN
Inventors: 宋国强; 董捍新
Original assignee: JIANGSU XINGRONG MEILE COPPER INDUSTRY Co Ltd
Current assignee: JIANGSU XINGRONG MEILE COPPER INDUSTRY Co Ltd
Priority date: 2011-08-25
Filing date: 2011-08-25
Publication date: 2012-03-21
Anticipated expiration: 2021-08-25

Abstract

The utility model relates to a graphite crystallizer for improving smoothness of inner wall of a horizontal continuous casting blank of a copper pipe. The graphite crystallizer comprises an outer sleeve body and a core rod, wherein the core rod is coaxially arranged in an inner cavity of the outer sleeve body; the rear end of the outer sleeve body is connected with the rear end of the core rod; a liquid inlet is arranged at the bottom wall of the rear end of the outer sleeve body; a casting blank mold outlet is arranged at the front end of the outer sleeve body; the core rod is a conical body with a gradually reduced radius from the rear rend to the front end; and a convex ring is arranged on the conical surface of the core rod. The graphite crystallizer for improving the smoothness of the inner wall of the horizontal continuous casting blank of the copper pipe is simple in structure and is easy to manufacture; the convex ring functioning in extruding the inner wall of the casting blank in the casting blank leading-out process is additionally arranged, so that the inner wall of the casting blank is smooth and clean; and meanwhile, the inner wall tissue of the casting blank is extruded more compactly so as to facilitate rolling of the following process.

Description

Improve the graphite crystallizer of copper pipe horizontal casting strand inner wall smooth degree

Technical field

The utility model relates to copper pipe strand equipment technical field, especially a kind of graphite crystallizer that improves copper pipe horizontal casting strand inner wall smooth degree.

Background technology

At present, the technology of becoming a useful person of copper pipe strand has two kinds, and the one, horizontal casting tandem rolling method, another is an extrusion.Extrusion is because the extrusion technique level is low, and the degree of eccentricity of product is big, and is in light weight, and lumber recovery is low, and cost is high, and energy consumption is high, is progressively abandoned using by each manufacturer.Horizontal casting tandem rolling method is compared with traditional extrusion, has characteristics such as cost is low, energy consumption is little, efficient is high, lumber recovery height, thereby has obtained development faster.Graphite crystallizer is the core component of horizontal casting tandem rolling method; The juche idea of continuous casting production is exactly directly to be cast as shaped article to liquid copper water; Graphite crystallizer is exactly the parts that but go out liquid copper water-cooled solid-state copper base; Existing graphite crystallizer structure comprises overcoat cylindrical shell and the plug that is arranged on the outer sleeve intracoelomic cavity, and the rear end of plug is connected with the rear end of overcoat cylindrical shell, has the circular passage between overcoat cylindrical shell and the plug; Have the inlet that communicates with the circular passage on the rear end diapire of overcoat cylindrical shell; Molten metal bath gets into the circular passage from overcoat cylinder back-end inlet, and because of on the overcoat cylindrical shell cooling device being installed, crystallization and freezing becomes solid when the overcoat barrel front end goes out die orifice and draws; Cooling off the making of promptly accomplishing the copper pipe strand through the outer secondary of equipment, for conveniently stripped plug from the rear end forward the extreme direction radius reduce tapered gradually.Because strand has pause in spill process; Thereby produce crystallization line clocklike, along with cooling effect and draw the variation of speed, the both sides of crystallization line can form a step; Make that the strand inwall is rough; When later process was rolling, the step of inwall can produce lamination through extruding, influences product quality.

The utility model content

The technical problem that the utility model will solve is: in order to solve the deficiency of prior art; The utility model provides a kind of graphite crystallizer that improves copper pipe horizontal casting strand inner wall smooth degree; Have the bulge loop that can push the strand inwall, make the strand inner wall smooth, organize tightr.

The utility model solves the technical scheme that its technical problem adopted: a kind of graphite crystallizer that improves copper pipe horizontal casting strand inner wall smooth degree; Have overcoat cylindrical shell and the coaxial plug that is arranged on the outer sleeve intracoelomic cavity; The rear end of overcoat cylindrical shell is connected with the rear end of plug, and overcoat cylinder back-end diapire has inlet, and the front end of overcoat cylindrical shell is that strand goes out die orifice; The cone of plug for reducing gradually toward the front end radius from the rear end, the taper seat of described plug are provided with a circle bulge loop.Bulge loop is arranged on that strand has just begun crystallization but the position of not solidifying fully, and bulge loop has squeezing action to the strand inwall in the strand spill process, makes the strand inner wall smooth, organizes tightr.

For avoiding scratch strand inwall, the cross section outline of described bulge loop is circular arc.

For avoiding influencing drawing of strand, described bulge loop height is 1mm.

The beneficial effect of the utility model is; The graphite crystallizer of the raising copper pipe horizontal casting strand inner wall smooth degree of the utility model is simple in structure; Be easy to make, increase a bulge loop that in the strand spill process, the strand inwall is had squeezing action, make the strand inwall smoothly bright and clean; Simultaneously also push the strand interior wall tissue tightr, it is rolling to help subsequent technique.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the cutaway view of graphite crystallizer most preferred embodiment of the raising copper pipe horizontal casting strand inner wall smooth degree of the utility model;

Fig. 2 is the partial enlarged drawing of Fig. 1.

Among the figure: 1. overcoat cylindrical shell, 11. inlets, 12. go out die orifice, 2. plug, 21. bulge loops.

The specific embodiment

Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

Fig. 1 Fig. 2 is the most preferred embodiment of graphite crystallizer of the raising copper pipe horizontal casting strand inner wall smooth degree of the utility model; Have overcoat cylindrical shell 1 and the coaxial plug 2 that is arranged on overcoat cylindrical shell 1 inner chamber; The rear end of overcoat cylindrical shell 1 is connected with the rear end of plug 2, and overcoat cylindrical shell 1 rear end diapire has inlet 11, and the front end of overcoat cylindrical shell 1 is that strand goes out die orifice 12; The cone of plug 2 for reducing gradually toward the front end radius from the rear end; The taper seat of plug 2 is provided with a circle bulge loop 21, and the cross section outline of bulge loop 21 is circular arc, and bulge loop 21 highly is 1mm.

Bulge loop 21 is arranged on that strand has just begun crystallization but the position of not solidifying fully, and 21 pairs of strand inwalls of bulge loop have squeezing action in the strand spill process, make the strand inner wall smooth, organize tightr.

With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.

Claims

1. graphite crystallizer that improves copper pipe horizontal casting strand inner wall smooth degree; Have overcoat cylindrical shell (1) and the coaxial plug (2) that is arranged on overcoat cylindrical shell (1) inner chamber; The rear end of overcoat cylindrical shell (1) is connected with the rear end of plug (2); Overcoat cylindrical shell (1) rear end diapire has inlet (11); The front end of overcoat cylindrical shell (1) is that strand goes out die orifice (12), and the cone of plug (2) for reducing gradually toward the front end radius from the rear end is characterized in that: the taper seat of described plug (2) is provided with a circle bulge loop (21).

2. the graphite crystallizer of raising copper pipe horizontal casting strand inner wall smooth degree as claimed in claim 1, it is characterized in that: the cross section outline of described bulge loop (21) is circular arc.

3. according to claim 1 or claim 2 the graphite crystallizer of raising copper pipe horizontal casting strand inner wall smooth degree, it is characterized in that: described bulge loop (21) highly is 1mm.