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Production system and production method of passivated pure calcium core-spun yarn

A pure calcium cored wire and production system technology, applied in the field of refining outside the steelmaking furnace, can solve the problems of reduced work efficiency, reduced production continuity, reduced core wire content, etc., to reduce calcium loss and safety accidents, slow down boiling and splash phenomenon, the effect of reducing calcium loss

Active Publication Date: 2015-06-17
MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 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 system and production method of passivated pure calcium cored wire

Method used

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  • Production system and production method of passivated pure calcium core-spun yarn
  • Production system and production method of passivated pure calcium core-spun yarn
  • Production system and production method of passivated pure calcium core-spun yarn

Examples

Experimental program
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Effect test

Embodiment 1

[0038] like figure 2 As shown, a production system for 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 core wire unit 8, the pure calcium cored wire to be processed passes through the heater 1, the extruder 2, the passivation processor 3 and the cored wire unit 8 in turn, wherein the above-mentioned extruder 2 is used to extrude the calcium rod into calcium Wire, passivation processor 3 is used to passivate the calcium wire. A liquid inlet is provided on the upper part of the passivation processor 3, the inlet end and the outlet end of the passivation processor 3 are sealed soft joints, and the passivation processor 3 is us...

Embodiment 2

[0058] A kind of production method of passivation pure calcium cored wire of the present embodiment, its steps are:

[0059] Step 1. Preparation of passivation solution

[0060]The methyl silicone oil and talc powder were weighed according to weight percentages of 90% and 10%, respectively, and the weighed methyl silicone oil and talc powder were placed in a high-speed stirring tank and stirred 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;

[0061] Step 2. Heating and extrusion of calcium rods into filaments

[0062] Start the production system of passivated pure calcium cored wire, heat the pure calcium rod to be treated with heater 1, when the calcium rod is heated to the plastic extrusion temperature, put it in the extruder 2 for extrusion treatment , to extrude it into a metal calcium wire of Ф7mm, and the mass fraction o...

Embodiment 3

[0069] A kind of production method of passivation pure calcium cored wire of the present embodiment, its steps are:

[0070] Step 1. Preparation of passivation solution

[0071] The methyl silicone oil and talc powder were weighed according to weight percentages of 95% and 5%, respectively, and the weighed methyl silicone oil and talc powder were placed in a high-speed stirring tank and stirred 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;

[0072] Step 2. Heating and extrusion of calcium rods into filaments

[0073] Start the production system of passivated pure calcium cored wire, heat the pure calcium rod to be treated with heater 1, when the calcium rod is heated to the plastic extrusion temperature, put it in the extruder 2 for extrusion treatment , to extrude it into a metal calcium wire of Ф8mm, and the mass fraction of ...

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Abstract

The invention discloses a production system and production method of a passivated pure calcium core-spun yarn, belonging to the technical field of steelmaking furnace external refining. The production system comprises a heater, an extruding machine, a core-spun yarn unit, a passivating treatment device and an automatic charging mechanism, wherein the automatic charging mechanism comprises a pressure sensor, a solenoid valve, a passivated liquid pump and a control unit; a liquid outlet of the passivated liquid pump is connected with a liquid inlet on the upper part of the passivating treatment device through a liquid delivery pipeline; the liquid delivery pipeline is provided with a solenoid valve; the pressure sensor is installed at the liquid inlet on the upper part of the passivating treatment device; a signal output end of the pressure sensor is connected with an input end of the control unit; a switch of the passivated liquid pump is connected with an output end of the control unit; and the liquid inlet of the passivated liquid pump is connected with a passivated liquid storage tank through a pipeline. By using the passivated pure calcium core-spun yarn, the oxidation loss of calcium lines is reduced, so that the calcium yield in the molten steel is greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of out-of-furnace refining in steelmaking, and more particularly relates to a production system for passivating pure calcium cored wire and a production method thereof. Background technique [0002] 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 feeding technology, make it possible to produce high-purity clean steel. Calcium treatment wire feeding technology is an efficient technical means for final refining treatment of high clean and high quality steel with strict requirements on the shape and quantity of inclusions. Calcium treatment wire feeding technology not only has ideal effects in deoxidizing, desulfurizing, and changing the shape of inclusions in molten steel, but also in realizing fine-tuning of steel composition, improving the yield and hit rate of elements, g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00C21C7/06C21C7/064
Inventor 李国安王建国李寿全
Owner MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
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