Tee joint type cable working well

A technology for slag iron and slag removal, applied in the field of metallurgy to achieve the effect of reducing energy consumption

Active Publication Date: 2010-08-25
SHANGHAI JIULONG ELECTRIC POWER GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the existing production method, the present invention provides a method for producing nodular cast iron by using the slag and iron taken out by pretreatment of molten iron as raw material

Method used

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  • Tee joint type cable working well
  • Tee joint type cable working well
  • Tee joint type cable working well

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Use this method to produce 1t of ductile iron with the designation QT500-7. The melting equipment adopts 450kVA, 1.5t industrial frequency induction furnace. The iron slag is smelted in an induction furnace. The composition of the iron slag used is C: 3.5%, Si: 0.8%, Mn: 0.35%, S: 0.033%, P: 0.03%, Mg: 0.025%, and the balance For Fe. The melting temperature is 1550°C, and the melting time is 40 minutes. 15kgCaC 2 Put it into the bottom of the ladle with 17kg75SiFe at the same time and wait for the molten iron to rush in. After pouring into molten iron, inoculation and desulfurization treatment are carried out. The treatment temperature is 1430°C and the treatment time is 10 minutes. After the inoculation treatment, the wire feeding method is used for spheroidization treatment. The wire feeding equipment is a single-head wire feeding machine, the nodulizer is QRMg8RE3, the core wire diameter is 10mm, the wire quality is 169g / m, and the wire feeding speed is 100m / min ...

example 2

[0020] Use this method to produce 1t of ductile iron with the brand name QT400-15. The melting equipment adopts 450kVA, 1.5t industrial frequency induction furnace. The slag iron is smelted in an induction furnace, and the composition of the slag iron used is C: 2.8%, Si: 0.5%, Mn: 0.45%, S: 0.023%, P: 0.04%, Mg: 0.03%, and the balance For Fe. The melting temperature is 1530°C, and the melting time is 30 minutes. 12kgCaC 2 Put it and 25kg75SiFe into the bottom of the ladle at the same time and wait for the molten iron to rush in. After pouring into molten iron, inoculation and desulfurization treatment are carried out. The treatment temperature is 1400°C and the treatment time is 8 minutes. After the inoculation treatment, the wire feeding method is used for spheroidization treatment. The wire feeding equipment is a single-head wire feeding machine, the nodulizer is QRMg8RE3, the core wire diameter is 12mm, the wire quality is 172g / m, and the wire feeding speed is 120m / min...

example 3

[0022] Use this method to produce 1t of ductile iron with the designation QT700-2. The melting equipment adopts 450kVA, 1.5t industrial frequency induction furnace. The iron slag is smelted in an induction furnace, and the composition of the iron slag used is C: 3.0%, Si: 0.9%, Mn: 0.5%, S: 0.019%, P: 0.03%, Mg: 0.022%, and the balance For Fe. The melting temperature is 1500°C, and the melting time is 40 minutes. 7kgCaC 2 Put it into the bottom of the ladle with 16kg75SiFe at the same time and wait for the molten iron to rush in. After pouring into molten iron, inoculation and desulfurization treatment are carried out. The treatment temperature is 1400°C and the treatment time is 15 minutes. After the inoculation treatment, wire feeding method is used for spheroidization treatment. The wire feeding equipment is a single-head wire feeding machine, the nodulizer is QRMg8RE3, the core wire diameter is 13mm, the wire quality is 230g / m, and the wire feeding speed is 100m / min ,...

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Abstract

The invention discloses a three-way cable working well in the technical field of underground engineering, which comprises a prefabricated component block, a sealing element and a connector. The prefabricated component block comprises an upper end component block, a lower end component block, an upper transition component block, a lower transition component block, an upper wellhead end component block, a lower upper wellhead end component block and a water log well component block, wherein the height after the upper component blocks and the lower component block paired mutually is the height of the well body; the prefabricated component blocks are spliced into a straight-through well body of which two ends are provided with an opening respectively and each side is provided with a third opening; and joints where all the prefabricated component blocks are spliced are underlaid with the sealing elements, and the prefabricated component blocks are connected by the connectors. The three-waycable working well is provided with three openings so as to enlarge working space, can adapt to different arrangement modes of cables, is convenient to repair cable failure, reduces repair cost, and accords with practicability of cable laying.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, in particular to a method for producing nodular cast iron by using the slag and iron taken out by pretreatment of molten iron as raw material. Background technique [0002] Ductile iron has high strength and good toughness, and its mechanical properties are almost close to steel. Therefore, its application range is expanding day by day, and its output is increasing. Metal structural materials. [0003] At present, the production of ductile iron parts at home and abroad mainly uses cast pig iron plus scrap steel and an appropriate amount of ferrosilicon as raw materials. After secondary smelting in cupola or electric furnace, nodularization and inoculation are carried out by punching method to obtain nodular cast iron. This method of production has the following disadvantages: one is that the price of raw materials (pig iron) is higher, and the other is that the composition is unstable. The ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/12
Inventor 吴建高汪一华曹雪峰王承姜晓敏姜云诸谧玮
Owner SHANGHAI JIULONG ELECTRIC POWER GROUP
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