CN106086306A - A kind of high magnesium core-spun yarn and preparation method thereof - Google Patents
A kind of high magnesium core-spun yarn and preparation method thereof Download PDFInfo
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- CN106086306A CN106086306A CN201610688909.XA CN201610688909A CN106086306A CN 106086306 A CN106086306 A CN 106086306A CN 201610688909 A CN201610688909 A CN 201610688909A CN 106086306 A CN106086306 A CN 106086306A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
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Abstract
The present invention relates to metallurgical auxiliary technical field, it is specifically related to a kind of high magnesium core-spun yarn and preparation method thereof, described high magnesium core-spun yarn include containing magnesium ribbon steel and be wrapped in containing within magnesium ribbon steel containing magnesium alloy powder layer, in described strip steel, the mass percent of magnesium is 2% 5%.The preparation method of described high magnesium core-spun yarn, comprise the steps: step 1: after molten steel melts, magnesium metal is pressed into molten bath in vacuum drying oven, roll forming of casting under inert ambient environment becomes 0.2 0.5mm gauge strips steel disc, and band steel disc carries out surface inerting processing containing magnesium ribbon steel；Step 2: use core-spun yarn mechanical feed forming machine will contain magnesium alloy powder as core material tightly packed described containing the outer Intradermal of magnesium ribbon steel, extrude fixed-type, make high magnesium core-spun yarn.Height magnesium core-spun yarn of the present invention improves for the core-spun yarn of >=30% magnesium content, is escalated into by existing high Mg alloy cored wine strip steel containing magnesium ribbon steel, improves total content of magnesium of mix-melting method height Mg alloy cored wine.
Description
Technical field
The present invention relates to metallurgical auxiliary technical field, be specifically related to a kind of high magnesium core-spun yarn and preparation method thereof.
Background technology
In the industrial production, the currently known core-spun yarn containing magnesium be by strip steel and be wrapped in strip steel containing magnesium powder material structure
Becoming, powder layer can be that magnesium powder forms with other raw material physical mixed, it is possible to the magnesium alloy powder after crushing for mix-melting method.Along with production
The lifting of technology, molten iron processing procedure to liquid iron balling, breed and desulfurization treatment effect requirement is increasingly stricter, so to containing magnesium
Core-spun yarn proposes the requirement of higher level, and the general magnesium content of magnesium core-spun yarn is less than 30%, needs the higher magnesium content of one, molten iron badly
Processing procedure produces less amount residual oxidization magnesium, nodularization, the appearance of pregnant effect the highest magnesium core-spun yarn.
Once saw that document report had use one alignment footpath magnesium line to be wrapped in the process form preparing core-spun yarn in strip steel powder, this
Although kind of a method can solve >=30% magnesium content height magnesium alloy and be difficult to melting and the high inflammable and explosive problem of magnesium alloy shattering process, but
It is after strip steel " dissolves " in molten iron, magnesium generating gasification that large access area causes and oxidation, simultaneously participate in molten iron reaction
Magnesium amount is excessive, and magnesium utilization efficiency is low, poor to molten iron treatment effect.
Summary of the invention
The technical problem to be solved is: provide a kind of magnesium content mix-melting method height magnesium alloy bag greatly equal to 30%
Heart yearn and preparation method thereof
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of high magnesium core-spun yarn is provided, including containing magnesium ribbon steel and be wrapped in containing within magnesium ribbon steel containing magnesium alloy powder layer,
In described strip steel, the mass percent of magnesium is 2%-5%.
Preferably, in above-mentioned high magnesium core-spun yarn, described is 28%-containing the mass percent of magnesium in magnesium alloy powder layer
35%.
Preferably, in above-mentioned high magnesium core-spun yarn, described is mg-si master alloy containing magnesium alloy powder layer, described mg-si master alloy
Alloy breaks down granularity is 0-3.5mm, and described mg-si master alloy is 30.27% containing magnesium mass percent.
Preferably, in above-mentioned high magnesium core-spun yarn, the described thickness containing magnesium ribbon steel is 0.35mm.
Preferably, in above-mentioned high magnesium core-spun yarn, described carry out surface inerting process containing magnesium ribbon steel.
Another technical scheme that the present invention provides, for providing the preparation method of a kind of high magnesium core-spun yarn, comprises the steps:
Step 1: after molten steel melts, magnesium metal is pressed into molten bath in vacuum drying oven, roll forming of casting under inert ambient environment
Becoming 0.2-0.5mm gauge strips steel disc, band steel disc carries out surface inerting processing containing magnesium ribbon steel, described containing the matter of magnesium in magnesium ribbon steel
Amount percent is 2%-5%；
Step 2: use core-spun yarn mechanical feed forming machine will contain magnesium alloy powder and contain described as core material is tightly packed
The outer Intradermal of magnesium ribbon steel, extrudes fixed-type, makes high magnesium core-spun yarn.
Preferably, in the preparation method of above-mentioned high magnesium core-spun yarn, the described preparation method containing magnesium alloy powder is: by magnesium
Silicon alloy melting, cast, broken, controlling mg-si master alloy Powder Particle Size is 0-3.5mm, the percent mass of magnesium in described mg-si master alloy powder
Number is 28-35%；
The beneficial effects of the present invention is: height magnesium core-spun yarn of the present invention, compared with existing magnesium powder or Mg alloy cored wine, makes
Processing molten iron with height magnesium core-spun yarn of the present invention, its advantage is as follows: 1 and the contrast of magnesium powder core-spun yarn: is effectively reduced core-spun yarn and is inserting
During entering bottom molten iron, due to high temperature liquid iron too early being gasified by hot environment and aoxidize of liquid effect magnesium, it is possible to reduce high magnesium
Magnesium generating gasification that core-spun yarn causes because of powder and high temperature solution large access area when molten iron internal-response and oxidation, improve bag
The utilization rate of magnesium in heart yearn；2 and existing mix-melting method height magnesium alloy powder core-spun yarn contrast: in strip steel, increase a certain amount of magnesium, increase
Add the total magnesium content of core-spun yarn, solve superelevation magnesium alloy ingot melting difficulty, it is possible to after solving high magnesium alloy smelting, shattering process is because containing
The too high inflammable and explosive danger of magnesium amount, introduces a certain amount of magnesium simultaneously in strip steel, while ensureing band hardness of steel, strengthen it wear-resistant
Rupture strength.
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, it is explained below in conjunction with embodiment.
The design of most critical of the present invention is: height magnesium core-spun yarn of the present invention is that the core-spun yarn for >=30% magnesium content is carried out
Improve, existing high Mg alloy cored wine strip steel is escalated into containing magnesium ribbon steel, use and improve total content of magnesium in core-spun yarn containing magnesium ribbon steel.
Embodiment 1
A kind of high magnesium core-spun yarn, it is characterised in that include containing magnesium ribbon steel and be wrapped in containing within magnesium ribbon steel containing magnesium alloy
Powder layer, in described strip steel, the mass percent of magnesium is 2%-5%, described containing the mass percent of magnesium in magnesium alloy powder layer is
28%-35%, the alloy breaks down granularity of described mg-si master alloy is 3.5mm, described mg-si master alloy containing magnesium mass percent be
30.27%.The described thickness containing magnesium ribbon steel is 0.35mm.Described carry out surface inerting process containing magnesium ribbon steel.
The preparation method of above-mentioned high magnesium core-spun yarn is as follows:
Step 1: after molten steel melts, magnesium metal is pressed into molten bath in vacuum drying oven, roll forming of casting under inert ambient environment
Becoming 0.2-0.5mm gauge strips steel disc, band steel disc carries out surface inerting processing containing magnesium ribbon steel, described containing the matter of magnesium in magnesium ribbon steel
Amount percent is 2%-5%；The described preparation method containing magnesium alloy powder is: by mg-si master alloy melting, cast, broken, control
Mg-si master alloy Powder Particle Size is 0-3.5mm, and in described mg-si master alloy powder, the mass percent of magnesium is 28-35%；
Step 2: use core-spun yarn mechanical feed forming machine will contain magnesium alloy powder and contain described as core material is tightly packed
The outer Intradermal of magnesium ribbon steel, extrudes fixed-type, makes high magnesium core-spun yarn.
Embodiment 2
The preparation method of a kind of high magnesium core-spun yarn, comprises the steps:
Carrying out, containing magnesium ribbon steel melting, magnesium metal being pressed into after molten steel melts molten bath in vacuum drying oven, inert ambient environment is watered
Casting roll forming becomes 0.35mm gauge strips steel disc, and strip steel carries out surface inerting process, controls containing content of magnesium effective in magnesium ribbon steel,
Detection average is 4.65%, standby；
Carry out mg-si master alloy melting, cast, broken to obtain mg-si master alloy core material, alloy breaks down Task-size Controlling between 2mm, inspection
Survey alloy magnesium content 29.79%；
Using core-spun yarn mechanical feed forming machine by tightly packed for mg-si master alloy core material containing the outer Intradermal of magnesium ribbon steel, extruding is solid
Determine molding, make high magnesium core-spun yarn.Described high magnesium core-spun yarn section may be designed to circle, the various shape such as oval or square；
The total magnesium content of core-spun yarn prepared by said method is for contain containing magnesium 4.65%+ core material mg-si master alloy in magnesium ribbon steel
Magnesium 29.79%, adds up to 34.44%.In the molten iron processing procedure of downstream, core material same core diameter cored as wrapping in ordinary band steel
Line contrasts, and processes molten iron and uses core-spun yarn length can reduce 1.55 meters/ton, simultaneously better processing effect, residual in molten iron after process
Oxidation magnesium amount is stayed to reduce 11.032%.
Embodiment 3
The preparation method of a kind of high magnesium core-spun yarn, comprises the steps:
Carrying out, containing magnesium ribbon steel melting, magnesium metal being pressed into after molten steel melts molten bath in vacuum drying oven, inert ambient environment is watered
Casting roll forming becomes 0.32mm gauge strips steel disc, and strip steel carries out surface inerting process, controls containing content of magnesium effective in magnesium ribbon steel,
Detection average is 4.85%, standby；
Carry out mg-si master alloy melting, cast, broken, alloy breaks down Task-size Controlling, between 3.5mm, detects alloy magnesium content
30.27%；
Using core-spun yarn mechanical feed forming machine by tightly packed for mg-si master alloy core material containing the outer Intradermal of magnesium ribbon steel, extruding is solid
Determine molding, make high magnesium core-spun yarn.
The total magnesium content of core-spun yarn prepared by this technique is containing magnesium containing magnesium 4.85%+ core material mg-si master alloy in magnesium ribbon steel
30.27%, add up to 35.12%.In the molten iron processing procedure of downstream, core material same glad footpath core-spun yarn as wrapping in ordinary band steel
Contrast, processes molten iron and uses core-spun yarn length can reduce 2.75 meters/ton, simultaneously better processing effect, remain after process in molten iron
Oxidation magnesium amount reduces 23.24%.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
The equivalents that bright description is made, or directly or indirectly it is used in relevant technical field, the most in like manner it is included in this
In bright scope of patent protection.
Claims (7)
1. one kind high magnesium core-spun yarn, it is characterised in that include containing magnesium ribbon steel and be wrapped in containing within magnesium ribbon steel containing magnesium alloy powder
The bed of material, in described strip steel, the mass percent of magnesium is 2%-5%.
High magnesium core-spun yarn the most according to claim 1, it is characterised in that described containing the quality hundred of magnesium in magnesium alloy powder layer
Mark is 28%-35%.
High magnesium core-spun yarn the most according to claim 1, it is characterised in that described is mg-si master alloy containing magnesium alloy powder layer,
The alloy breaks down granularity of described mg-si master alloy is 0-3.5mm, and described mg-si master alloy is 30.27% containing magnesium mass percent.
High magnesium core-spun yarn the most according to claim 1, it is characterised in that the described thickness containing magnesium ribbon steel is 0.35mm.
High magnesium core-spun yarn the most according to claim 1, it is characterised in that described carry out surface inerting place containing magnesium ribbon steel
Reason.
6. the preparation method of one kind high magnesium core-spun yarn, it is characterised in that comprise the steps:
Step 1: magnesium metal is pressed into after molten steel melts molten bath in vacuum drying oven, roll forming of casting under inert ambient environment becomes
0.2-0.5mm gauge strips steel disc, band steel disc carries out surface inerting processing containing magnesium ribbon steel, described containing the quality of magnesium in magnesium ribbon steel
Percent is 2%-5%；
Step 2: use core-spun yarn mechanical feed forming machine will contain magnesium alloy powder as core material tightly packed described containing magnesium ribbon
The outer Intradermal of steel, extrudes fixed-type, makes high magnesium core-spun yarn.
The preparation method of high magnesium core-spun yarn the most according to claim 6, it is characterised in that the described system containing magnesium alloy powder
Preparation Method is: by mg-si master alloy melting, cast, broken, controlling mg-si master alloy Powder Particle Size is 0-3.5mm, described mg-si master alloy powder
The mass percent of middle magnesium is 28-35%.
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| CN201610688909.XA CN106086306A (en) | 2016-08-19 | 2016-08-19 | A kind of high magnesium core-spun yarn and preparation method thereof |
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| CN201610688909.XA CN106086306A (en) | 2016-08-19 | 2016-08-19 | A kind of high magnesium core-spun yarn and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576432A (en) * | 2018-11-11 | 2019-04-05 | 三祥新材（宁夏）有限公司 | A kind of novel spheroidized core wire and preparation method |
| CN112410508A (en) * | 2020-11-15 | 2021-02-26 | 禹州市恒利来新材料有限公司 | Production process of low-magnesium core-spun yarn |
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| CN1580307A (en) * | 2003-08-05 | 2005-02-16 | 包头文鑫实业有限公司 | Process for manufacturing high silicon-magnesium-ratio alloy spheroidized core-spun yarn |
| CN102161094A (en) * | 2011-04-02 | 2011-08-24 | 福建三祥工业新材料有限公司 | Method for avoiding surface oxidation of metal in core-spun yarn |
| CN102181778A (en) * | 2011-03-29 | 2011-09-14 | 福建三祥工业新材料有限公司 | Core-spun yarn and preparation method thereof |
| CN103451506A (en) * | 2013-08-23 | 2013-12-18 | 苏州长盛机电有限公司 | Preparation method of magnesium-iron alloy |
| CN103738002A (en) * | 2013-12-24 | 2014-04-23 | 中兴能源装备股份有限公司 | Steel belt containing alloy coating |
| CN104328331A (en) * | 2014-11-28 | 2015-02-04 | 三祥新材股份有限公司 | Method for improving residual magnesium amount in nodular iron casting |
| CN105568153A (en) * | 2016-01-26 | 2016-05-11 | 安徽同盛环件股份有限公司 | High-temperature resistant alloy steel ring piece and rolling process thereof |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1580307A (en) * | 2003-08-05 | 2005-02-16 | 包头文鑫实业有限公司 | Process for manufacturing high silicon-magnesium-ratio alloy spheroidized core-spun yarn |
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| CN103738002A (en) * | 2013-12-24 | 2014-04-23 | 中兴能源装备股份有限公司 | Steel belt containing alloy coating |
| CN104328331A (en) * | 2014-11-28 | 2015-02-04 | 三祥新材股份有限公司 | Method for improving residual magnesium amount in nodular iron casting |
| CN105568153A (en) * | 2016-01-26 | 2016-05-11 | 安徽同盛环件股份有限公司 | High-temperature resistant alloy steel ring piece and rolling process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576432A (en) * | 2018-11-11 | 2019-04-05 | 三祥新材（宁夏）有限公司 | A kind of novel spheroidized core wire and preparation method |
| CN112410508A (en) * | 2020-11-15 | 2021-02-26 | 禹州市恒利来新材料有限公司 | Production process of low-magnesium core-spun yarn |
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