CN206253609U - Pour cast copper slab ingot cast tubes - Google Patents

Abstract

The utility model is related to the pouring device that copper slab ingot is used, one kind is provided and pours cast copper slab ingot cast tubes, vertical cast tubes including upper end open lower end closed, the tube chamber bottom of cast tubes opens up the casting gate that oriented both sides tilt upward, the upward angle of inclination of casting gate is 5 10 °, casting gate is relative with the narrow side of strand, can promote the uniform growth of strand scull, improves casting quality.

Description

Pour cast copper slab ingot cast tubes

Technical field

The utility model is related to the pouring device that copper slab ingot is used, and more particularly to one kind pours cast copper slab ingot cast tubes.

Background technology

In the production process of continuous and semicontinuous copper and copper alloy slab ingot, the copper liquid in foundry furnace is flowed into by cast tubes In water mold, by the traction of the water-cooled and casting machine of crystallizer, the casting of ingot casting is completed.The effect of cast tubes is mainly Change flow regime of the stream stock in crystallizer, heat that dispersion streamer is brought into etc..The knot of the cast tubes for using in the prior art Structure is to open up level circle casting gate in the both sides of its tube chamber bottom, and asking for two aspects so occurs in casting cycle Topic：One is that copper liquid stream stock impacts strongly to the narrow side 1 of strand, and the flow velocity from the copper liquid stream stock of circular casting gate outflow is uneven, fluid Move towards disorderly, be unfavorable for formation and the uniform growth of strand scull；Two be copper liquid fluidization tower impact depth it is big, copper liquid in crystallizer Temperature distributing disproportionation, hinders the discharge of gas, field trash, and inside ingot easily forms slag inclusion and gas hole defect, influences ingot casting Surface state and internal soundness.

Utility model content

The purpose of this utility model is directed to the shortcomings of the prior art, there is provided one kind pours cast copper slab ingot with pouring Cast tube, can promote the uniform growth of strand scull, improve casting quality.

To realize object above, the technical solution adopted in the utility model is：One kind pours cast copper slab ingot cast tubes, including The vertical cast tubes of upper end open lower end closed, the tube chamber bottom of cast tubes opens up the casting gate that oriented both sides tilt upward, The upward angle of inclination of casting gate is 5-10 °, and casting gate is relative with the narrow side of strand.

Compared with prior art, there is following technique effect in the utility model：One is copper liquid from cast tubes both sides casting gate Flow out obliquely, reduce copper the liquid convection intensity of horizontal direction and copper liquid stream stock rushing to the narrow side 1 of strand in a crystallizer Hit, be conducive to the uniform growth of strand scull；Two is the impact depth for weakening fluidization tower, and each several part copper liquid temperature can in crystallizer Tend to uniform, promote the discharge of gas slag inclusion in copper liquid, can effectively reduce the ingot castings such as slag inclusion foreign matter, the stomata of inside ingot and lack Fall into.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is the A-A sectional views of Fig. 1.

Specific embodiment

With reference to Fig. 1-2, the utility model is described in further detail.

One kind pours cast copper slab ingot cast tubes, including upper end open lower end closed vertical cast tubes 10, cast tubes 10 Tube chamber bottom open up the casting gate 11 that oriented both sides tilt upward, the upward angle of inclination of casting gate 11 is 5-10 °, casting gate 11 is relative with the narrow side 1 of strand.By setting the casting gate 11 for tilting upward that angle is 5-10 °, the copper liquid of each several part in crystallizer Temperature field can tend to uniform, prevent the copper liquid of crystallizer internal upper part from hindering the floating of bubble and slag inclusion because temperature drop solidifies, it is ensured that The uniformity of strand.

Preferably, the narrow flat degree of lip-rounding of the overall wide in horizontal direction, above-below direction of casting gate 11.Can not only so promote Stream stock stretches, and reduces asymmetric drift stock, can also weaken the convection current in a crystallizer in the horizontal direction of copper liquid, weakens stream stock to strand The impact on narrow side.

Further, in casting cycle, according to the change of liquid level water level in crystallizer, operating personnel's adjustment cast tubes Position, allow the immersion liquid depth of cast tubes body to be maintained between 90-120mm, copper liquid stream stock punching in casting cycle can be prevented Go out liquid level and seethe copper water to cause oxide inclusion to react, and prevent the coverture on mold liquid level surface to be rolled into copper liquid, protect Demonstrate,prove the inside quality of ingot casting.In crystallizer the highest order of copper liquid liquid level to be less than crystallizer height and keep appropriate difference in height with Avoid staff's misoperation and copper liquid is splashed outside crystallizer.

Preferably, the width ratio of the length of the horizontal direction of casting gate 11 and above-below direction is 1:1.4.

Further technical scheme, is the crystallizer of 300-420mm for general depth, what casting gate 11 was tilted upward Effect is preferable when angle is 7-9 °.

Claims (3)

1. one kind pours cast copper slab ingot cast tubes, including upper end open lower end closed vertical cast tubes (10), its feature exists In：The tube chamber bottom of cast tubes (10) opens up the casting gate (11) that oriented both sides tilt upward, the upward inclination of casting gate (11) Angle is 5-10 °, and casting gate (11) is relative with the narrow side of strand (1).

It is 2. according to claim 1 to pour cast copper slab ingot cast tubes, it is characterised in that：Casting gate (11) is in integrally level side The narrow flat degree of lip-rounding of Xiang Kuan, above-below direction.

It is 3. according to claim 2 to pour cast copper slab ingot cast tubes, it is characterised in that：The length of casting gate (11) horizontal direction The width ratio of degree and above-below direction is 1:1.4.