CN202291388U

CN202291388U - Improved stopper rod core component of continuous casting tundish

Info

Publication number: CN202291388U
Application number: CN2011203866690U
Authority: CN
Inventors: 姜国才; 马国伟; 吴吉桃
Original assignee: Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2011-10-12
Filing date: 2011-10-12
Publication date: 2012-07-04
Anticipated expiration: 2021-10-12

Abstract

The utility model discloses an improved stopper rod core component of a continuous casting tundish, which consists of an upper core rod and a lower core mold. In the structure of the upper core rod, the upper end of a core rod column sleeve is provided with a flat square screw with symmetric and parallel surfaces, the core rod column sleeve is internally provided with an axial blind hole with the closed upper end, the part of the core rod column sleeve on the axial line under the blind hole is provided with an axial slot shape hole passing through the core rod column sleeve, the lower core rod is a column rod with a blocking platform arranged at the lower end of the lower core rod, the upper part of the column rod is provided with a column rod slot shape hole corresponding to the slot shape hole of the core rod column sleeve, the column rod of the lower core rod is matched dynamically with the blind hole of the core rod column sleeve, and a wedge-shaped insert pin is matched with the slot shape hole of the core rod column sleeve and the column rod slot shape hole of the lower core rod so that the lower core rod is fixedly connected in a blind hole of the upper core rod. The improved stopper rod core component has a reasonable structure, the thermal expansion and contraction of the rod core component after baking of the tundish can be eliminated conveniently, a gap can be produced by the rod core component and a stopper, the swinging of the stopper during casting of the tundish can be avoided, and the improved stopper rod core component has long service life, reliable performance and low use cost.

Description

A kind of improved continuous casting tundish stopper bar chipware

Technical field

the utility model belongs to and is used for the improvement that tundish connects stopper mechanism and stopper bar chipware structure, particularly a kind of improved continuous casting tundish stopper bar chipware in the production of cast steel continuous casting.

Background technology

tundish stopper is the refractory material that is used for tundish control stream in the continuous casting production, and tundish stopper bar chipware is the parts that connect stopper mechanism and stopper.Bar chipware top is fastenedly connected through the transverse arm of bolt and stopper mechanism, and the bottom is connected with stopper through fastening silk braid (refractory material).

In use there is following shortcoming in original continuous casting tundish stopper bar chipware:

1, tundish baking back bar chipware expand with heat and contract with cold, and bar chipware and stopper produce the gap, and stopper is swung when undertaking to perform work within a time limit and according to specifications cast in can't fasteningly causing, and is difficult to operation and is prone to have an accident.

2, repeatedly using the rear lower threads to peel off bolt can't be fastening, is prone to take place the bar chipware during middle job contract cast and separates with stopper to cause and stop the accident of watering.

3. use for many times the yielding integral body that causes of rear lower to scrap.

Summary of the invention

The purpose of the utility model is to provide a kind of improved continuous casting tundish stopper bar chipware; It is rational in infrastructure, can eliminate tundish baking back bar chipware easily and expand with heat and contract with cold the gap that bar chipware and stopper are produced; Stopper was swung when job contract was poured into a mould in avoiding; Long service life, dependable performance, use cost is low.

The purpose of the utility model is achieved in that a kind of improved continuous casting tundish stopper bar chipware; The bar chipware that comprises flat side's screw rod with symmetrical parallel surfaces; The bar chipware is made up of last core bar and following core bar, and the structure of last core bar is being provided with the axial blind hole of upper end closed in the upper end of core bar column sleeve the flat side's screw rod with symmetrical parallel surfaces to be set in the core bar column sleeve; Be positioned on the core bar column sleeve of blind hole lower axis the axial slotted hole that connects the core bar column sleeve is being set; Following core bar is that the lower end has the mast that keeps off platform, is being provided with on the top of mast and the corresponding mast slotted hole of the slotted hole of core bar column sleeve, and the blind hole of the mast of following core bar and core bar column sleeve movingly; Wedge-shaped bolt matches with the slotted hole of core bar column sleeve and the mast slotted hole of following core bar, and core bar is fixed in the blind hole of core bar.

Continuous casting tundish stopper bar chipware after improve has adopted and split typely has been made up of last core bar and following core bar, will go up core bar and following core bar is fixed together through wedge-shaped bolt.Through the retaining platform fastening silk braid is installed on the following core bar, fastening silk braid is connected with stopper.

Continuous casting tundish stopper bar chipware after the improvement has following advantage:

1, tundish baking back bar chipware expand with heat and contract with cold and produce the gap; Pin through knocking the bar chipware can fasteningly be gone up core bar and two parts of following core bar; Bar core and stopper are fastening to become one thereby make, and stopper is swung when having avoided middle job contract to pour into a mould.

are though 2, repeatedly use back also oxidative exfoliation the but situation that the bar chipware separates with stopper can not take place of core bar down.

The back is 3. used if core bar distortion down only need be scrapped core bar down many times in , and last core bar still can use, and has reduced cost.

the utility model is rational in infrastructure, has eliminated tundish baking back bar chipware easily and has expanded with heat and contract with cold the gap that bar chipware and stopper produce; Stopper is swung when having avoided middle job contract to pour into a mould; Long service life, dependable performance, use cost is low.

Description of drawings

To combine accompanying drawing that the utility model is done further to describe below,

Fig. 1 is the utility model assembly structure sketch map;

Fig. 2 is the main TV structure sketch map of last core bar;

Fig. 3 is the left TV structure sketch map of Fig. 2;

Fig. 4 is the plan structure sketch map of Fig. 3;

Fig. 5 is the main TV structure sketch map of following core bar;

Fig. 6 is the left TV structure sketch map of Fig. 5.

The specific embodiment

a kind of improved continuous casting tundish stopper bar chipware; Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6; The bar chipware that comprises flat side's screw rod with symmetrical parallel surfaces; The bar chipware is made up of last core bar and following core bar, and the structure of last core bar is being provided with the axial blind hole of upper end closed in the upper end of core bar column sleeve 6 the flat side's screw rod 5 with symmetrical parallel surfaces to be set in core bar column sleeve 6; Be positioned on the core bar column sleeve 6 of blind hole lower axis the axial slotted hole 7 that connects core bar column sleeve 6 is being set; Following core bar is that the lower end has the mast 8 that keeps off platform 9, is being provided with on the top of mast 8 and the corresponding mast slotted hole 10 of the slotted hole of core bar column sleeve 6, and the mast 8 of following core bar and the blind hole of core bar column sleeve 6 are movingly; Wedge-shaped bolt 2 matches with the slotted hole 7 of core bar column sleeve and the mast slotted hole 10 of following core bar, and core bar is fixed in the blind hole of core bar.Flat side's screw rod 5 of last core bar is fastenedly connected through the transverse arm 1 of bolt and stopper structure, and following stem is connected with stopper 3 through fastening silk braid 4.

Claims

1. improved continuous casting tundish stopper bar chipware; The bar chipware that comprises flat side's screw rod with symmetrical parallel surfaces; It is characterized in that: the bar chipware is made up of last core bar and following core bar; The structure of last core bar is for being provided with the flat side's screw rod (5) with symmetrical parallel surfaces in the upper end of core bar column sleeve (6); The axial blind hole of upper end closed is being set in core bar column sleeve (6), is being positioned at the axial slotted hole (7) that perforation core bar column sleeve (6) is being set on the core bar column sleeve (6) of blind hole lower axis, following core bar is the mast (8) that the lower end has retaining platform (9); Be provided with and the corresponding mast slotted hole of the slotted hole of core bar column sleeve (6) (10) on the top of mast (8); The blind hole of the mast of following core bar (8) and core bar column sleeve (6) movingly, wedge-shaped bolt (2) matches with the slotted hole (7) of core bar column sleeve and the mast slotted hole (10) of following core bar, and core bar is fixed in the blind hole of core bar.