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A production method of passivated pure calcium cored wire

A technology of pure calcium cored wire and production method, which is applied in the field of refining outside the steelmaking furnace, can solve the problems of reducing production continuity, reducing work efficiency, reducing the passivation effect of calcium wire, etc., and achieves slowing down boiling and splashing, Reduce safety accidents and protect against oxidation

Active Publication Date: 2017-06-30
MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that in the production and processing process of the existing passivated pure calcium cored wire, the calcium wire is passivated by manual smearing or by manually adding passivation solution into the passivation processor, which increases the labor cost of workers. Labor intensity reduces the continuity of production and greatly reduces work efficiency; and during the passivation process, due to the ratio of the passivation solution or the contact between the passivation solution and the air, the calcium wire is oxidized during the passivation process The phenomenon is still serious, so that the Ca content in the core wire is still reduced, reducing the passivation effect of the calcium wire, affecting the use effect and calcium yield of calcium treatment in steel plants, and increasing the production cost of calcium treatment in steel plants, etc. , providing a production method of passivated pure calcium cored wire

Method used

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  • A production method of passivated pure calcium cored wire
  • A production method of passivated pure calcium cored wire
  • A production method of passivated pure calcium cored wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 2 As shown, a production system of passivated pure calcium cored wire in this embodiment includes a heater 1, an extruder 2, a cored wire unit 8, a passivation processor 3 and an automatic filling mechanism. Wherein, the heater 1 is located at the feed end of the extruder 2, the inlet end of the passivation processor 3 is located at the discharge end of the extruder 2, and the outlet end of the passivation processor 3 is provided with a cored wire unit 8. The pure calcium cored wire to be processed passes through the heater 1, extruder 2, passivation processor 3 and cored wire unit 8 in sequence, wherein the above extruder 2 is used to extrude calcium rods into calcium The passivation processor 3 is used to passivate the calcium filament. A liquid inlet is provided on the upper part of the passivation processor 3, and the inlet end and the outlet end of the passivation processor 3 are sealed soft joints, and the passivation processor 3 is used to hold p...

Embodiment 2

[0059] A kind of production method of passivated pure calcium cored wire of the present embodiment, its steps are:

[0060] Step 1, preparation of passivation solution

[0061]Weigh the methyl silicone oil and talcum powder according to the weight percentage of 90% and 10% respectively, place the weighed methyl silicone oil and talcum powder in a high-speed stirring tank and stir for 30 minutes to obtain the required passivation solution, And it is packed into passivation processor 3 and passivation liquid storage tank, the alkalinity PH of gained passivation liquid is 6.5;

[0062] Step 2. Heating and extrusion of calcium rods into filaments

[0063] Start the production system of passivated pure calcium cored wire, heat the pure calcium rod to be processed with heater 1, and place it in extruder 2 for extrusion after the calcium rod is heated to the plastic extrusion molding temperature , so that it is extruded into a metal calcium wire of Ф7mm, and the mass fraction of Ca...

Embodiment 3

[0070] A kind of production method of passivated pure calcium cored wire of the present embodiment, its steps are:

[0071] Step 1, preparation of passivation solution

[0072] Weigh the methyl silicone oil and talcum powder according to the weight percentage of 95% and 5% respectively, place the weighed methyl silicone oil and talcum powder in a high-speed stirring tank and stir for 25 minutes to obtain the required passivation solution, And it is packed into passivation processor 3 and passivation liquid storage tank, the alkalinity PH of gained passivation liquid is 6;

[0073] Step 2. Heating and extrusion of calcium rods into filaments

[0074] Start the production system of passivated pure calcium cored wire, heat the pure calcium rod to be processed with heater 1, and place it in extruder 2 for extrusion after the calcium rod is heated to the plastic extrusion molding temperature , so that it is extruded into a metal calcium wire of Ф8mm, and the mass fraction of Ca i...

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Abstract

The invention discloses a production method of a passivated pure calcium core-spun yarn, and belongs to the technical field of outer refining of steel refining furnaces. The production method of the passivated pure calcium core-spun yarn comprises the steps of preparation of passivation liquid, heating of a calcium rod and yarn formation through extruding, passivating treatment of a calcium yarn and coating treatment of the calcium yarn. An automatic injecting mechanism comprises a pressure sensor, an electromagnetic valve, a passivation liquid pump and a control unit; a liquid outlet of the passivation liquid pump is connected with a liquid inlet in the upper part of a passivation treater through a liquid conveying pipe; the electromagnetic valve is mounted on the liquid conveying pipe; the pressure sensor is mounted in the liquid inlet in the upper part of the passivation treater; a signal output end of the pressure sensor is connected with an input end of the control unit; a switch of the passivation liquid pump is connected with an output end of the control unit; and a liquid inlet of the passivation liquid pump is connected with a passivation liquid storage tank through a pipe. The passivated pure calcium core-spun yarn is used for reducing the oxidation loss of the calcium yarn, so that the yield of calcium in molten steel is largely increased.

Description

[0001] The patent application of the present invention is a divisional application with the application number: 2015101454241. The filing date of the original application is: March 27, 2015. The name of the invention is: a production system for passivated pure calcium cored wire and its production method. technical field [0002] The invention belongs to the technical field of refining outside a steelmaking furnace, and more specifically relates to a production method of a passivated pure calcium cored wire. Background technique [0003] The high efficiency of modern steelmaking production and the rapid development of post-furnace refining technology, especially the wide application of post-furnace molten steel refining and feeding line technology, have made it possible to produce high-purity clean steel. Calcium treatment wire feeding technology is a high-efficiency technical means for the final refining treatment of high-quality steel with strict requirements on the shape ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/00
CPCC21C7/0056
Inventor 李国安王建国李寿全
Owner MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
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