CN109704793A - The application method of vacuum induction melting production hydrogen bearing alloy coating - Google Patents
The application method of vacuum induction melting production hydrogen bearing alloy coating Download PDFInfo
- Publication number
- CN109704793A CN109704793A CN201910138914.7A CN201910138914A CN109704793A CN 109704793 A CN109704793 A CN 109704793A CN 201910138914 A CN201910138914 A CN 201910138914A CN 109704793 A CN109704793 A CN 109704793A
- Authority
- CN
- China
- Prior art keywords
- refractory material
- hydrogen bearing
- bearing alloy
- coating
- induction melting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of application methods of vacuum induction melting production hydrogen bearing alloy coating, it include: that the reaction clinker in crucible when vacuum induction melting hydrogen bearing alloy is crushed to 150 μm or less, it reacts and adds refractory material adhesive in clinker, be uniformly mixed addition water；Refractory material adhesive selects one kind or the two mixture of waterglass or aluminium dihydrogen phosphate；Mixture is coated on refractory material or ingot mould surface, water is discharged by heating for the refractory material or ingot mould for being coated with coating.The contact and reaction of alloy molten solution with refractory material or ingot mould can be isolated in the present invention, improve the quality of hydrogen bearing alloy and the service life of ingot mould.
Description
Technical field
The present invention relates to a kind of technologies for producing hydrogen bearing alloy, specifically, are related to a kind of vacuum induction melting production hydrogen storage
The application method of alloy coating.
Background technique
Industrial production hydrogen bearing alloy is the most commonly used is intermediate frequency vacuum electromagnetic induction melting at present, and melting scale is from several public affairs
Jin is differed to several tons, and crucible is closed in a vacuum chamber, metal (rare earth, nickel, cobalt, manganese, the aluminium contained using electromagnetic induction in crucible
Deng) the interior vortex current heating furnace charge progress melting generated of conductor, the smelting of Metal and Alloy is carried out under vacuum conditions and is poured
Note, to obtain the hydrogen bearing alloy of high quality, the process of this production hydrogen bearing alloy is vacuum induction melting method.
Crucible is the important component of induction melting, for the work for smelting and rising insulation, insulation and transmitting energy that charges
With.The production common crucible of hydrogen bearing alloy is Al2O3Crucible, MgO crucible or ZrO2Crucible.
When the various metals (rare earth, nickel, cobalt, manganese, aluminium etc.) that crucible contains incude thawing, alloying, refining, in alloy
Fractions of active ingredient, especially rare earth react in melt stage and crucible contact surface, form clinker, and the clinker of formation is difficult
It reacts again with the molten condition alloy in crucible, there is high temeperature chemistry inertia.
There are also the components for guiding alloy molten solution, such as runner, drainage trough, upper tundish, lower tundish in vaccum sensitive stove
Position is all refractory material, and material mainly has mullite, corundum, magnesia, graphite etc..The metal active of high-temperature fusion liquid
Height, rare earth especially therein are easily reacted with the main component mullite of above-mentioned refractory material, corundum, magnesia, graphite etc. and are made
Slag reduces active constituent content in material, the impurity such as dregs is brought into alloy material, reduces hydrogen bearing alloy performance.
Hydrogen bearing alloy melt is flowed out from crucible, and to finally solid is cooled to, during which hydrogen bearing alloy melt will pass through fire resisting
The drainage or guidance of material product (runner, drainage trough, upper tundish, lower tundish etc.), the hydrogen bearing alloy liquid of molten condition
Higher because of temperature when with refractory material contact, more active rare earth element and basis material occur anti-in hydrogen bearing alloy liquid
It answers, influences alloying component；Refractory material and hydrogen bearing alloy melt contact portion are constantly reacted and are lost, and making for refractory material is reduced
Use the service life.
Such as inferior reaction occurs:
La+Al2O3→Al+La2O3
3Ce+2Al2O3→2Al+3CeO2
Refractory material surface layer open pores are more, are easy to alloy and react and adhesion alloy, until cleaning refractory material
When the alloy of surface layer, refractory material surface layer and alloy contact part understand some refractory material and alloy adhesion, can follow alloy
It is detached from refractory material matrix together, to reduce the service life of refractory material.
The main material of ingot mould is iron, copper, mild steel, and aluminium alloy is especially drained into ingot mould, and (cooling ingot mold is self cooling
Type ingot mould) in when, when continuous or mass production, hydrogen bearing alloy melt can and ingot mould contact surface alloying reaction occurs, cause to close
Easy mold release, alloy pig local chemical composition be not abnormal for ingot, reduces ingot mould service life.The hydrogen storage of high quality is closed in order to obtain
Gold, it is necessary to reduce the reaction between melt liquid metal and refractory material, reduce the alloying between alloy molten solution and ingot mould
Reaction.
Summary of the invention
Technical problem solved by the invention is to provide a kind of use of vacuum induction melting production hydrogen bearing alloy coating
The contact and reaction of alloy molten solution with refractory material or ingot mould can be isolated in method, improve the quality and ingot mould of hydrogen bearing alloy
Service life.
Technical solution is as follows:
A kind of application method of vacuum induction melting production hydrogen bearing alloy coating, comprising:
Reaction clinker in crucible when vacuum induction melting hydrogen bearing alloy is crushed to 150 μm hereinafter, adding in reaction clinker
Add refractory material adhesive, is uniformly mixed addition water；Refractory material adhesive selects one kind of waterglass or aluminium dihydrogen phosphate
Or the two mixture；
Mixture is coated on refractory material or ingot mould surface, the refractory material or ingot mould for being coated with coating will by heating
Water discharge.
Further, every 5 parts of reaction clinkers use 1-3 parts of refractory material adhesives；The additional amount of water are as follows: 3~8 parts of reacting furnaces
Slag, refractory material adhesive add 1 part of water.
Further, reaction slag composition is the oxide of element contained by hydrogen bearing alloy.
Further, coating cated refractory material or ingot mould naturally dry, or it is heated and is dried, drying temperature
100-200℃。
Further, refractory material or ingot mould are heated to 80-150 DEG C before applying coating, then by mixture coating with
Refractory surface；The refractory material for being coated with coating carries out heating, drying again, and 100-200 DEG C of drying temperature.
The technology of the present invention effect includes:
The present invention spreads on refractory surface, or coated on the ingot mould surface contacted with alloy molten solution, alloy can be isolated
The contact and reaction of melt and refractory material or ingot mould, alloy pig easy mold release in production process, improve the quality of hydrogen bearing alloy
With the service life of ingot mould.
1, ferro element is the impurity element of hydrogen bearing alloy strict control；The hydrogen bearing alloy strict control of some specifications and models
The content of copper；Iron and copper coin cellulose content height will all reduce hydrogen bearing alloy self-discharge performance.
The weight of iron and copper coin cellulose content in the amount of bringing into of iron and copper, and control hydrogen bearing alloy is reduced in the ingot casting stage
Want one of means.Ingot mould is usually metal material, and material has iron, mild steel, copper etc., and hydrogen bearing alloy melt is contacted with ingot mould, from
Liquid cooled is to solid-state, and cooling velocity is extremely important, and cooling fast high temperature solution and ingot mould time of contact are short, alloy molten solution and ingot mould
Reaction time is short；Cooling slow high temperature solution and ingot mould time of contact are long, and high temperature alloy melt and ingot mould reaction time are long, ingot mould quilt
Alloy molten solution corrodes serious；
The coating is coated on the surface with alloy contact, high temperature solution is isolated with ingot mould, reduces high temperature solution and ingot mould
Contact, reduce the reaction of pyrosol and ingot mould, reduce the amount in hydrogen bearing alloy of bringing metallic element in ingot mould into.
Generally logical recirculated cooling water cools down to ingot mould inside ingot mould, and coating corrodes ingot because reducing alloy molten solution
Mould can prevent alloy molten solution from pouring ingot mould wall and wear (alloy molten solution can explode with recirculated water vigorous reaction), improve ingot mould
Safety when casting is also improved while service life.
2, the coating is coated on the surface that refractory material and alloy molten solution contact, connecing for alloy molten solution and refractory material is isolated
Touching reduces more active rare earth element in hydrogen bearing alloy liquid and reacts with what basis material occurred, reduction in alloy effectively at
The influence for dividing content improves the stability of alloying component, reduces impurity element and impurity refractory material enters in alloy.
Be coated with refractory material and the alloy contact part of coating, be also not easy with alloy adhesion, refractory surface because
The alloy of reaction and adhesion solidification is few, in addition also easily separates the alloy of solidification and refractory material, to improve fire proofed wood
The service life of material.
Specific embodiment
Be described below and specific embodiments of the present invention be fully shown, with enable those skilled in the art to practice and
It reproduces.
Vacuum induction melting produces the application method of hydrogen bearing alloy coating, specifically includes the following steps:
Step 1: the reaction clinker in crucible when vacuum induction melting hydrogen bearing alloy is crushed to 150 μm hereinafter, reacting furnace
Appropriate refractory material adhesive is added in slag, is uniformly mixed a small amount of water of addition；
Every 5 parts of reaction clinkers use 1-3 parts of refractory material adhesives, and refractory material adhesive selects waterglass or phosphoric acid
One kind or the two mixture of aluminum dihydrogen.In coating in use, needing that clinker will be reacted, refractory material adhesive mixes and adds
Water stirring, the additional amount of water are as follows: 3~8 parts of reaction clinkers, refractory material adhesives add 1 part of water.
The production common crucible of hydrogen bearing alloy is Al2O3Crucible, MgO crucible or ZrO2Crucible, so the ingredient of reaction clinker
Different because of the difference of crucible, slag composition is mainly the oxide for producing element contained by hydrogen bearing alloy in crucible.
When vacuum induction melting hydrogen bearing alloy, filling with inert gas is protected after Chou Zhen Kong≤8Pa in furnace, a part inside furnace chamber
Oxygen is not extracted, and furnace chamber inner wall and surface of material also adsorb certain oxygen, and metal is being heated and melt stage, by furnace chamber
Unpumped dioxygen oxidation becomes oxide, such as lanthanum sesquioxide, ceria, nickel oxide, manganese dioxide.This partial oxidation
Object all slag making in crucible, become clinker.
When crucible is alumina crucible, the rare earth element added in melt stage, hydrogen bearing alloy is easy to crucible and occurs such as
Inferior reaction.It reacts the oxides such as lanthanum sesquioxide, the ceria generated and is completely formed clinker.
La+Al2O3→Al+La2O3
3Ce+2Al2O3→2Al+3CeO2
When crucible is magnesia crucible, the rare earth element added in hydrogen bearing alloy is easy to crucible and such as inferior reaction occurs.
It reacts the oxides such as lanthanum sesquioxide, the ceria generated and is completely formed clinker.
2La+3MgO→3Mg+La2O3
Ce+2MgO→2Mg+CeO2
In conclusion slag composition predominantly produces hydrogen bearing alloy in crucible when vacuum induction melting produces hydrogen bearing alloy
The oxide of contained element.
Waterglass is commonly called as sodium silicate, is a kind of water-soluble silicate, and aqueous solution is commonly called as waterglass, is a kind of mine bonding
Agent.Its chemical formula is R2O·nSiO2, R in formula2O is alkali metal oxide, and n is silica and alkali metal oxide molal quantity
Ratio, the referred to as number that rubs of waterglass.Waterglass physics and chemistry feature: cohesive force is strong, intensity is higher, acid resistance, heat resistance.
Aluminium dihydrogen phosphate is thermosetting material, and coking mechanism belongs to polycondensation combination, decomposes when heated, is dehydrated and polymerize.It burns
Following reaction will occur for aluminium dihydrogen phosphate during knot:
2Al(H2PO4)3→Al2(H2P2O7)3+3H2O
In coating in use, needing that reaction clinker, refractory material adhesive are mixed and added water and stirred, the additional amount of water
Are as follows: 3~8 parts of reaction clinkers, refractory material adhesives add 1 part of water.
Refractory material adhesive is one or two kinds of mixtures of waterglass or aluminium dihydrogen phosphate aqueous solution, specific mixing ratio
Example is shown in Table 1.
1 mixture partition of table
Step 2: mixture being coated on refractory material or ingot mould surface, the refractory material or ingot mould for being coated with coating pass through
Water is discharged for heating.
After adhesive in coating loses crystallization water hardening, coating itself has stronger mechanical strength and heat resistance, applies
Layer and refractory material or ingot mould have stronger binding force.
It is coated with the refractory material or ingot mould of the coating, is put into vacuum induction melting furnace in use, because containing in coating
There is moisture, the time that vacuum induction melting furnace reaches required vacuum degree can be extended, in order to reduce to reaching the required vacuum degree time
Influence, make to coat cated refractory material using following several schemes, hardening and dry:
1. coating cated refractory material or ingot mould naturally dry, or it is heated and is dried, drying temperature 100-
200℃。
2. refractory material is heated to 80-150 DEG C before applying coating, then mixture is coated and refractory material table
Face, temperature is higher, the moisture evaporation in coating and refractory material it is faster.For the water further allowed in coating and refractory material
Point volatilization is clean, and the refractory material that can be coated with coating carries out heating, drying again, and 100-200 DEG C of drying temperature.
The processing mode of refractory material before and after 2 applying coating of table
Term used herein is explanation and term exemplary, and not restrictive.Since the present invention can be with a variety of
Form be embodied without departing from invention spirit or essence, it should therefore be appreciated that above-described embodiment be not limited to it is any above-mentioned
Details, and should widely explaining within the spirit and scope of the appended claims, thus fall into claim or its etc.
Whole change and modification in effect range all should be appended claims and be covered.
Claims (5)
1. a kind of application method of vacuum induction melting production hydrogen bearing alloy coating, comprising:
Reaction clinker in crucible when vacuum induction melting hydrogen bearing alloy is crushed to 150 μm hereinafter, adding in reaction clinker resistance to
Fiery material adhesive is uniformly mixed addition water；Refractory material adhesive select waterglass or aluminium dihydrogen phosphate one kind or
The two mixture；
Mixture is coated on refractory material or ingot mould surface, the refractory material or ingot mould for being coated with coating arrange water by heating
Out.
2. the application method of vacuum induction melting production hydrogen bearing alloy coating as described in claim 1, it is characterised in that: every 5
Part reaction clinker uses 1-3 parts of refractory material adhesives；The additional amount of water are as follows: 3~8 parts of reaction clinkers, refractory material adhesives,
Add 1 part of water.
3. the application method of vacuum induction melting production hydrogen bearing alloy coating as described in claim 1, it is characterised in that: reaction
Slag composition is the oxide of element contained by hydrogen bearing alloy.
4. the application method of vacuum induction melting production hydrogen bearing alloy coating as described in claim 1, it is characterised in that: coating
Cated refractory material or ingot mould naturally dry, or be heated and dried, 100-200 DEG C of drying temperature.
5. the application method of vacuum induction melting production hydrogen bearing alloy coating as described in claim 1, it is characterised in that: applying
It covers and refractory material or ingot mould is heated to 80-150 DEG C before coating, then by mixture coating and refractory surface；It will coating
Cated refractory material carries out heating, drying again, and 100-200 DEG C of drying temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138914.7A CN109704793A (en) | 2019-02-25 | 2019-02-25 | The application method of vacuum induction melting production hydrogen bearing alloy coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138914.7A CN109704793A (en) | 2019-02-25 | 2019-02-25 | The application method of vacuum induction melting production hydrogen bearing alloy coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109704793A true CN109704793A (en) | 2019-05-03 |
Family
ID=66263903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910138914.7A Pending CN109704793A (en) | 2019-02-25 | 2019-02-25 | The application method of vacuum induction melting production hydrogen bearing alloy coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109704793A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212711A (en) * | 2011-06-08 | 2011-10-12 | 鞍山鑫普新材料有限公司 | Method for treating hydrogen storage alloy waste residues |
| CN102674856A (en) * | 2012-05-21 | 2012-09-19 | 北京科技大学 | Method for preparing tundish fireproof spray paint by using steel slag tailings |
| KR101405322B1 (en) * | 2014-02-28 | 2014-06-11 | 부림산업개발(주) | Inorganic ceramic paint for curing at room temperature and painting method using the same |
| CN104129970A (en) * | 2014-08-18 | 2014-11-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Heat insulation coating for molten iron jar |
| CN104748548A (en) * | 2013-12-30 | 2015-07-01 | 比亚迪股份有限公司 | High-temperature smelting pot and processing method and application thereof |
| CN105771833A (en) * | 2014-12-15 | 2016-07-20 | 江阴泰富沥青有限公司 | Modified asphalt reaction kettle with thermal-insulation coating |
-
2019
- 2019-02-25 CN CN201910138914.7A patent/CN109704793A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212711A (en) * | 2011-06-08 | 2011-10-12 | 鞍山鑫普新材料有限公司 | Method for treating hydrogen storage alloy waste residues |
| CN102674856A (en) * | 2012-05-21 | 2012-09-19 | 北京科技大学 | Method for preparing tundish fireproof spray paint by using steel slag tailings |
| CN104748548A (en) * | 2013-12-30 | 2015-07-01 | 比亚迪股份有限公司 | High-temperature smelting pot and processing method and application thereof |
| KR101405322B1 (en) * | 2014-02-28 | 2014-06-11 | 부림산업개발(주) | Inorganic ceramic paint for curing at room temperature and painting method using the same |
| CN104129970A (en) * | 2014-08-18 | 2014-11-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Heat insulation coating for molten iron jar |
| CN105771833A (en) * | 2014-12-15 | 2016-07-20 | 江阴泰富沥青有限公司 | Modified asphalt reaction kettle with thermal-insulation coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2851604C (en) | Method of reduction processing of steel-making slag | |
| CN103849787B (en) | A kind of preparation method of aerospace level vananum | |
| CN109776100A (en) | Vacuum induction melting coating | |
| CN106521297B (en) | A kind of method for reducing Form in High Nickel Austenite Nodular Cast Iron turbine case internal flaw | |
| CN100365146C (en) | Technology for manufacturing aluminium silicon alloy | |
| CN106977216A (en) | Anti-erosion liner for aluminium melting furnace and preparation method thereof | |
| CN106588051A (en) | Low-porosity magnesite-chrome brick and preparation method thereof | |
| CN106493321A (en) | Steel-making tundish covering flux and preparation method thereof | |
| CN101570803B (en) | Phosphorous pig iron desulfurizer used for casting pre-roasting anode | |
| US4957547A (en) | Process for continuously melting of steel | |
| CN109704793A (en) | The application method of vacuum induction melting production hydrogen bearing alloy coating | |
| JPS63117947A (en) | Molten steel vessel | |
| KR20020080409A (en) | Porous agglomerates containing iron and at least one further element from groups 5 or 6 of the periodic table for use as an alloying agent | |
| CN102839292A (en) | Aluminum iron alloy with ultra-low carbon, ultra-low titanium and high silicon contents for deoxidizing aluminum silicon killed steel and manufacturing method of aluminum iron alloy | |
| CN102605182B (en) | External method for production of 70# ferrotitanium with high titanium | |
| CN107640962A (en) | A kind of Ausmelt copper smelters alumina chrome brick and preparation method thereof | |
| CN109971974A (en) | A kind of production technology of blister refining | |
| CN105669220B (en) | A kind of Ausmelt furnace liner regeneration alumina chrome brick and preparation method thereof | |
| CN105506219A (en) | Aluminum-free heat generating agent used for chemical heating outside molten steel furnace and preparation method of aluminum-free heat generating agent | |
| Pal et al. | Performance assessment of CO2 treated fluxed iron oxide pellets in basic oxygen steel making process | |
| CN202066345U (en) | Smelting furnace suitable for copper alloy furnace liner | |
| CN110627485A (en) | High heat insulation ladle brick | |
| CN101191172A (en) | Producing method for preventing aluminum-manganese-iron alloy pulverizing | |
| CN1059364C (en) | Pouring protective slag for electric slag centrifugal casting | |
| CN102206085A (en) | Novel furnace lining material used for smelting copper alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190503 |