CN102241404A - Vacuum casting method of Fe2B compound - Google Patents
Vacuum casting method of Fe2B compound Download PDFInfo
- Publication number
- CN102241404A CN102241404A CN 201110091435 CN201110091435A CN102241404A CN 102241404 A CN102241404 A CN 102241404A CN 201110091435 CN201110091435 CN 201110091435 CN 201110091435 A CN201110091435 A CN 201110091435A CN 102241404 A CN102241404 A CN 102241404A
- Authority
- CN
- China
- Prior art keywords
- boron
- ferro
- pure
- crucible
- block
- 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.)
- Granted
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a vacuum casting method of a Fe2B compound. The method comprises the following steps: preparing pure Fe blocks and ferroboron at an Fe/B atomic ratio of 2:1; (2) placing the ferroboron into a crucible, then placing the pure Fe blocks into the crucible, wherein the particle size of the ferroboron is less than that of the pure Fe blocks, the pure Fe blocks are placed on the upper part of the ferroboron and do not contact with the inner wall of the crucible, the total height of the ferroboron and pure Fe blocks is no more than two third of the height of the crucible; and (3) placing the crucible with the ferroboron and pure Fe into a vacuum induction furnace, and performing vacuum melting, obtaining the Fe2B bulk material. The Fe2B bulk material prepared by the method has the advantages of simple preparation process, more compact texture and good molten zinc corrosion resistance.
Description
Technical field
The present invention relates to resisting corrosion of molten zinc alloy field.Along with the continuous increase of zinc-plated demand of section bars such as steel plate and output, cause the waste of usefulness materials such as zinc bath, zinc liquid transport pipe to increase thereupon, the material that obtains better resisting corrosion of molten zinc has the important project using value.The block Fe of preparation
2The B compound mainly can be used for the galvanized industries of section bar such as steel plate.
Background technology
Metallic corrosion brings massive losses to national economy, and zinc coating is one of most widely used steel material surface means of defence.At one of material iron boron cast alloy such as zinc bath, zinc liquid transport pipe, though Fe in this alloy
2B has better liquid zinc corrosion resistant performance mutually, but its matrix corrosion resistance is relatively poor, causes the remarkable decline of the liquid zinc corrosion resistant performance of this casting alloy.Often wish to realize obtaining netted Fe by add-on such as control alloying element Fe, B and casting technique
2B protects matrix to improve the liquid zinc corrosion resistant performance of this casting alloy effectively, has certain effect though the engineering application result shows, and is unsatisfactory.For the material of the better liquid zinc corrosion resistant of preparation, invented a kind of vacuum casting and prepared Fe
2The corrosion-resistant effect in zinc liquid of the method for B compound-material, this material has crucial innovative value and engineering application value.
Summary of the invention
The object of the present invention is to provide a kind of block Fe of liquid zinc corrosion resistant
2The method of the vacuum casting of B material, in order to reach this purpose, the present invention is achieved by the following technical solutions: a kind of block Fe of liquid zinc corrosion resistant
2The B preparation methods may further comprise the steps:
(1) with pure Fe piece and ferro-boron according to Fe: B=2: 1 atomic ratio is prepared burden;
(2) earlier ferro-boron is put into crucible, purer Fe piece is put into crucible, the ferro-boron granularity is less than pure Fe piece granularity, and pure Fe piece is placed on ferro-boron top and the contact of discord crucible inwall, and the long-pending total amount of ferro-boron and pure Fe block is no more than 2/3 of crucible height;
(3) crucible that will hold ferro-boron and pure iron is put into vacuum induction furnace, carries out vacuum metling and obtains block Fe
2The B material.
Described step (3) comprises puts into vacuum induction furnace with the crucible that holds ferro-boron and pure iron, subsequently casting mold is put into vacuum melting furnace equally, shuts fire door, opens smelting furnace recirculated water, begins to vacuumize vacuum tightness＜10
-1Begin during Pa to heat up, the intensification heating current is divided into two stages: at first heating current is 50A, when temperature arrives about 400-500 ℃, strengthens heating current then to 300A, reaches 1600 ℃ until smelting temperature, heats about 10 minutes, stops heating and begins cast; The cast back that finishes is waited for about 30-90 minute, closes recirculated water, close vacuum system after, open and obtain block Fe after taking out casting mold behind the fire door
2The B material.
The ferro-boron piece that described ferro-boron is respectively 2-5mm and 10-15mm by granularity is 1: 2 composition of proportions according to weight percent.
Described pure Fe piece requires surface derusting, drying, and Fe content is 99.99%.
Boron-containing quantity is 12-25% in the described ferro-boron, contains Fe amount 75-88%.
Of the present invention being further characterized in that:
Pure Fe piece requires: should eliminate rust in the surface, drying;
Ferro-boron piece purity and granularity are respectively: owing to the easy moisture absorption of ferro-boron, oxidation, select bulk ferro-boron raw material gently to pound to obtain appearance that the bulk of metalluster is all arranged (two kinds of about 2-5mm of granularity and 10-15mm, about 1: 2 of weight ratio requires two kinds of granularities to be mainly and makes ferro-boron filling degree of packing in crucible better; Do not fill the ferro-boron powder in addition, in case reduce melting efficiency and increase the scaling loss amount), to avoid block Fe
2Inclusion appears among the B.
The Fe for preparing among the present invention
2The preparation process of B block materials is simple, organizes densification, and has good resisting corrosion of molten zinc performance.
Description of drawings:
Fig. 1 prepares Fe for vacuum casting
2The metallographic structure figure of B block compound (etching reagent: 8% nitric acid alcohol, 400 *);
Fig. 2 prepares Fe for vacuum casting of the present invention
2The XRD figure spectrum of B compound.
Embodiment
The present invention proposes a kind of vacuum casting Fe
2The method of B compound, concrete technical scheme is:
1) measures conversion with containing Fe, B in the pure Fe piece (surface derusting, drying, the piece number is few more good more, is preferably a block and just can reaches desired raw material proportioning weight) of surface cleaning, the ferro-boron (granularity is about 2-5mm and 10-15mm, about 1: 2 of weight ratio), press Fe
2Fe and B atomic ratio are respectively weighed at 2: 1 among the B.
2) the ferro-boron piece and the pure Fe piece that weigh up are put into crucible successively, try one's best compacting and as far as possible contact of ferro-boron with the crucible inwall, the pure iron piece is placed on ferro-boron piece top and the contact of discord crucible inwall.The two kinds of raw material volume total amounts of packing into are no more than 2/3 of crucible height.
3) crucible that will hold ferro-boron and pure iron is put into vacuum induction furnace, subsequently casting mold is put into equally vacuum melting furnace (can realize vacuum pouring), shuts fire door, opens smelting furnace recirculated water, begins to vacuumize vacuum tightness＜10
-1Begin during Pa to heat up, the intensification heating current is divided into two stages: first heating current is 50A, when temperature arrives about 400-500 ℃, transfers big heating current to 300A then, reaches 1600 ℃ until smelting temperature, and about 10 minutes of reheat stops heating and begins cast.The cast back that finishes is waited for about about 1 hour, closes recirculated water, close vacuum system after, open and take a sample after taking out casting mold behind the fire door.
Among the present invention to the Fe of vacuum casting
2The B block materials has carried out XRD analysis, shows that it is single Fe
2The B block materials.
Below specific embodiments of the invention are described:
Embodiment (one):
1) with pure Fe piece (surface derusting, the drying of surface cleaning; Fe content is 99.99%), ferro-boron (B content is :) 100 gram, (boron-containing quantity 18.4% contains Fe amount 81.6% gram to take by weighing ferro-boron; The about respectively 2-5mm of two kinds of granularities and the 10-15mm that add ferro-boron, about 1: 2 of weight ratio) 99.4 restrains, satisfy Fe and B atomic ratio and be 2: 1 requirement.
2) the ferro-boron piece and the pure Fe piece that weigh up are put into crucible successively, try one's best compacting and as far as possible contact of ferro-boron with the crucible inwall, the pure iron piece is placed on ferro-boron piece top and the contact of discord crucible inwall.The two kinds of raw material volume total amounts of packing into are about 2/3 of crucible height.
3) crucible that will hold ferro-boron and pure iron is put into vacuum induction furnace, subsequently casting mold is put into equally vacuum melting furnace (can realize vacuum pouring), shuts fire door, opens smelting furnace recirculated water, begins to vacuumize, and vacuum tightness is 8 * 10
-1Begin during Pa to heat up, the intensification heating current is divided into two stages: first heating current is 50A, when temperature arrives about 450 ℃, transfers big heating current to 300A then, reaches 1600 ℃ until smelting temperature, and about 10 minutes of reheat stops heating and begins cast.The cast back that finishes is waited for about 1 hour, closes recirculated water, close vacuum system after, open and take a sample after taking out casting mold behind the fire door.By XRD analysis, show to obtain single block Fe
2The B compound, as shown in Figure 2.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (5)
1. the block Fe of a liquid zinc corrosion resistant
2The B preparation methods is characterized in that, may further comprise the steps:
(1) with pure Fe piece and ferro-boron according to Fe: B=2: 1 atomic ratio is prepared burden;
(2) earlier ferro-boron is put into crucible, purer Fe piece is put into crucible, the ferro-boron granularity is less than pure Fe piece granularity, and pure Fe piece is placed on ferro-boron top and the contact of discord crucible inwall, and the long-pending total amount of ferro-boron and pure Fe block is no more than 2/3 of crucible height;
(3) crucible that will hold ferro-boron and pure iron is put into vacuum induction furnace, carries out vacuum metling and obtains block Fe
2The B material.
2. a kind of block Fe of liquid zinc corrosion resistant according to claim 1
2The B preparation methods is characterized in that: described step (3) comprises puts into vacuum induction furnace with the crucible that holds ferro-boron and pure iron, subsequently casting mold is put into vacuum melting furnace equally, shuts fire door, opens smelting furnace recirculated water, begins to vacuumize vacuum tightness＜10
-1Begin during Pa to heat up, the intensification heating current is divided into two stages: at first heating current is 50A, when temperature arrives about 400-500 ℃, strengthens heating current then to 300A, reaches 1600 ℃ until smelting temperature, heats about 10 minutes, stops heating and begins cast; The cast back that finishes is waited for about 30-90 minute, closes recirculated water, close vacuum system after, open and obtain block Fe after taking out casting mold behind the fire door
2The B material.
3. a kind of block Fe of liquid zinc corrosion resistant according to claim 1
2The B preparation methods is characterized in that: the ferro-boron piece that described ferro-boron is respectively 2-5mm and 10-15mm by granularity is 1: 2 composition of proportions according to weight percent.
4. a kind of block Fe of liquid zinc corrosion resistant according to claim 1
2The B preparation methods is characterized in that: described pure Fe piece requires surface derusting, drying, and Fe content is 99.99%.
5. a kind of block Fe of liquid zinc corrosion resistant according to claim 1
2The B preparation methods is characterized in that: boron-containing quantity is 12-25% in the described ferro-boron, contains Fe amount 75-88%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110091435 CN102241404B (en) | 2011-04-12 | 2011-04-12 | Method for vacuum casting Fe2B compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110091435 CN102241404B (en) | 2011-04-12 | 2011-04-12 | Method for vacuum casting Fe2B compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102241404A true CN102241404A (en) | 2011-11-16 |
| CN102241404B CN102241404B (en) | 2013-02-06 |
Family
ID=44959689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110091435 Expired - Fee Related CN102241404B (en) | 2011-04-12 | 2011-04-12 | Method for vacuum casting Fe2B compound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102241404B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234608A (en) * | 2018-11-28 | 2019-01-18 | 西安交通大学 | A kind of preparation method of high-strength wearable FeB material |
| CN111074142A (en) * | 2019-12-25 | 2020-04-28 | 西安交通大学 | High-wear-resistance directional Fe2B compact block and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999952A (en) * | 1975-02-28 | 1976-12-28 | Toyo Kohan Co., Ltd. | Sintered hard alloy of multiple boride containing iron |
| JPS55100273A (en) * | 1979-01-26 | 1980-07-31 | Kogyo Gijutsuin | Surerhard heat resistant material |
| US4420539A (en) * | 1978-01-28 | 1983-12-13 | Kostikov Valery I | Process for producing antifriction materials |
| CN1088626A (en) * | 1992-12-24 | 1994-06-29 | 吴立新 | The boride hard metals of iron |
| CN101328557A (en) * | 2008-07-25 | 2008-12-24 | 西安交通大学 | Toughening processing method of hard phase Fe2B in iron boron wear-resistant alloy |
-
2011
- 2011-04-12 CN CN 201110091435 patent/CN102241404B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999952A (en) * | 1975-02-28 | 1976-12-28 | Toyo Kohan Co., Ltd. | Sintered hard alloy of multiple boride containing iron |
| US4420539A (en) * | 1978-01-28 | 1983-12-13 | Kostikov Valery I | Process for producing antifriction materials |
| JPS55100273A (en) * | 1979-01-26 | 1980-07-31 | Kogyo Gijutsuin | Surerhard heat resistant material |
| CN1088626A (en) * | 1992-12-24 | 1994-06-29 | 吴立新 | The boride hard metals of iron |
| CN101328557A (en) * | 2008-07-25 | 2008-12-24 | 西安交通大学 | Toughening processing method of hard phase Fe2B in iron boron wear-resistant alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234608A (en) * | 2018-11-28 | 2019-01-18 | 西安交通大学 | A kind of preparation method of high-strength wearable FeB material |
| CN111074142A (en) * | 2019-12-25 | 2020-04-28 | 西安交通大学 | High-wear-resistance directional Fe2B compact block and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102241404B (en) | 2013-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101906555B (en) | Mn-containing creep-resisting rolled zinc alloy belt material and preparation method thereof | |
| CN105908029B (en) | A kind of superhigh intensity non-rapid solidification aluminium alloy and preparation method thereof | |
| CN102888492B (en) | Si-Ca-Al-Mg-RE (rare earth) composite deoxidizer and preparation method thereof | |
| CN102241404B (en) | Method for vacuum casting Fe2B compound | |
| CN104946947B (en) | Prepare method and the copper mold of high strength magnesium lithium alloy using copper mold rapid solidification | |
| CN102211778B (en) | Method for improving strength of Fe2B material with zinc melting corrosion resistance | |
| CN102211005B (en) | Method for preparing magnetic graphite microspheres | |
| CN102328935B (en) | Method for preparing blocky Fe2B compound with zinc liquid corrosion resistance | |
| CN106947901A (en) | A kind of high-strength high-elasticity modulus Mg Li composites and preparation method thereof | |
| CN100595007C (en) | Method for in situ preparing TiC granule reinforced magnesium base composite material | |
| CN103194649B (en) | A kind of high strength Zr-Al-Sn series alloy and preparation method thereof | |
| CN102392180A (en) | Ferroaluminium and preparation method thereof | |
| CN105112752A (en) | Wear-resistant shock-absorbing alloy | |
| CN101514418A (en) | Aluminum titanium intermediate alloy and preparation method thereof | |
| CN105385915A (en) | Wear-resisting magnesium alloy and production method | |
| CN103866160B (en) | Method for modifying zinc alloy by using Al-Ti-B-RE alloy | |
| CN105385914A (en) | Magnesium-based wear-resisting and shock absorbing alloy | |
| CN101514416A (en) | Allumel intermediate alloy and preparation method thereof | |
| CN106992053A (en) | A kind of RE permanent magnetic alloy rapid-hardening flake containing Y | |
| CN105441730A (en) | Silver-neodymium-boron containing aluminum alloy conductor and preparation method thereof | |
| CN105132773A (en) | Wear-resisting damping alloy and production method | |
| CN101984125B (en) | Alloy material resistant to sulphuric acid at 220 DEG C. and method for preparing the same | |
| CN105256212A (en) | Magnesium-base wear-resistant damping alloy and production method | |
| CN104294128A (en) | Magnesium-based wear-resistant damping alloy and preparation method thereof | |
| WO2012113242A1 (en) | Low-zinc hot dip aluminum alloy coating material containing be and combination of agents, and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20170412 |