CN1009375B - Productive method for particulate si-p-fe alloy - Google Patents
Productive method for particulate si-p-fe alloyInfo
- Publication number
- CN1009375B CN1009375B CN 88109058 CN88109058A CN1009375B CN 1009375 B CN1009375 B CN 1009375B CN 88109058 CN88109058 CN 88109058 CN 88109058 A CN88109058 A CN 88109058A CN 1009375 B CN1009375 B CN 1009375B
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- China
- Prior art keywords
- phosphorus
- silicon
- contents
- alloy
- iron
- 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.)
- Expired
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- Soft Magnetic Materials (AREA)
Abstract
The present invention particularly relates to a production method of high silicon phosphorus soft magnet alloy. The present invention has the purpose of enhancing the silicon content and the phosphorus content in soft magnetic materials to make the materials reach the optimal electromagnetic property. The method is characterized in that the once through smelting operation of an iron ore is carried out; the high silicon phosphorus iron alloy contains 6.5% of silicon contents, 6% of phosphorus contents and 4.5% of carbon contents. Granular soft magnetic materials are mixed with an inorganic salt binder after the technologies of crushing, screening, classifying, etc. to carry out the pressure casting operation in various iron core moulds. A qualified soft magnet core can be produced by the heat treatment in a mineralized magnetic field. The present invention has the advantages of high silicon and phosphorus contents, low iron core loss, etc. Moreover, a production method which has high economical efficiency and simple technology is provided for the soft magnet core production in the electromechanical industry.
Description
The invention belongs to metallurgical technology field, be specifically related to a kind of production method of high silicon phosphorus soft magnetic iron alloy material.
The production method of known siliconized plate magneticsubstance is to be smelt iron → silicon steel → cast steel ingot → roll into slab → thin plate → shearing → annealing → pickling → finished silicon steel disc from ore.The content of the siliconized plate silicon (Si) that this production method is produced reaches as high as 4.5%.Silicon steel material according to the existing content of test, it is not the magneticsubstance of content the best, because the iron core in the various consumers is exchanging under the situation about using, the energy that is consumed in hysteresis occupies certain ratio in energy waste, so silicon (Si) content core loss in the scope of 1-4.5% is bigger, and complex manufacturing, all there is certain limitation in performance and the production technology that improves soft magnetic materials.
The objective of the invention is to have overcome the deficiencies in the prior art part, and provide a kind of siliceous (Si) amount that makes to reach 6.5%, phosphorous (P) amount reaches the production method of 6% grain silicon ferrorphosphorus soft magnetic materials.
The objective of the invention is to finish with following measure, a kind of production method of particulate Si ferrorphosphorus material, it comprise by iron ore disposablely smelt into that siliceous (Si) amount is 6.5%, phosphorous (P) amount is 6% high Si-P-Fe alloy, smelt the material after qualified, be broken into the particle of 0.35-0.5 millimeter, behind the sieving and grading, mix with liquid silicon sodium salt tackiness agent in proportion, be cast into the iron core of various models, constitute soft magnet core after the thermomagnetic treatment.This mode of production is to have utilized silicon, phosphorus, graphitic carbon content height and the also high characteristics of fragility, according in the smelting industry owing to improve the difficult problem that silicone content can not roll sheet, the production method of having invented the high Si-P-Fe alloy material of a kind of particulate state.According to test, when siliceous (Si) amount 6.5% the time, core loss is minimum, surpasses 6.5% o'clock core loss and continues to increase (as shown in the figure).
The present invention is by the disposable high Si-P-Fe alloy of smelting of iron ore.Be ground into the 0.35-0.5mm(millimeter with shredder assembly) big or small particle, after screening, the classification, be mixed in proportion with heatproof, magnetic conduction, insulating inorganic salt adhesive again, put into die cast in the iron core die, after the high temperature thermomagnetic treatment, can produce the iron core of different shape size, use this particulate state soft magnetic materials, can at first produce the iron core die of various different shapes sizes according to the difference of use range.
The used inorganic salt adhesive of the present invention is a kind of metso (water glass), when adopting this cementing agent cement particle soft magnetic materials, consumption is very little, but can keep high-intensity gummed, mainly be because this cementing agent except the intensity viscosifying power of colloid silica, also because what adopt is the tackiness agent of liquid state, therefore enwrapped granule shape soft magnetic materials more completely.The consumption of metso depends on the deal and the physical condition of high silicon phosphate material during die casting,, must consider under the condition of consolidating material grating the proportioning of selecting metso cementing agent and consolidating material to suit in order to obtain effect preferably.And the viscosifying power of metso depends on its modulus and concentration.Modulus is high more, and then its cementing power is also strong more, and concentration is high more, and then its cementing power also strengthens.Metso also has stronger preservative activity, because it can deposit layer of silicon dioxide (SiO on the metallic surface
2) colloidal film, also having the alkali metal silicate solutions insulating property in addition, its insulation degree depends on the modulus of silicate.
To carry out thermomagnetic treatment behind the die cast, can improve the degree of compactness of iron core, because silicate plays the mineralizer effect, so when the high Si-P-Fe alloy of soft magnetism is cooled to Curie temperature (768 ℃), magnetic transformation takes place externally-applied magnetic field at this moment.Make to have produced spontaneous magnetized area-magnetic field in the high Si-P-Fe alloy, change ferromegnetism into, order transformation takes place when slow cooling, make the state of disarray under the high temperature become the order state that atom is arranged according to certain rules by paramagnetism.After thermomagnetic treatment, maximum permeability significantly increases.
The contained high-content of carbon (C) of the present invention is 4.5% to be a kind of graphite carbon, has a kind of special hexagonal, and atom becomes layered arrangement, so what of the graphitic carbon content of the high Si-P-Fe alloy of particulate state, little to effect of magnetic influence, not in advance to consider that the high-content graphite carbon helps pulverizing.
Embodiment:
Manufacturing the purpose of the high Si-P-Fe alloy material of particle, is in order to improve silicon, the phosphorus content in the soft magnetic materials, to simplify production technique, making soft magnetic materials reach best electromagnetic performance.Concrete production method is: (one) disposable to smelt into siliceous (Si) amount be 6.5% with iron ore, and phosphorous (P) amount is 6% Si-P-Fe alloy; (2) Si-P-Fe alloy of smelting utilizes its brittle crush to become the 0.35-0.5mm(millimeter) about particle, carry out sieving and grading technology simultaneously; (3) adhesion technique, particulate material and inorganic salt adhesive after the fragmentation are mixed in proportion.(4) mixed particle soft magnetic materials, press product specification die casting in the iron core die of different shape, size, enter thermomagnetic treatment technology at last, when temperature is elevated to 850-900 ℃, be incubated for some time, can improve the density of iron core, when being cooled to Curie temperature (768 ℃), magnetic transformation takes place in externally-applied magnetic field at this moment, and soft magnetic materials has produced spontaneous magnetization zone-magnetic domain, changes ferromegnetism into by paramagnetism.When slow cooling living order transformation, make that state of disarray becomes the order state that atom is arranged according to certain rules under the high temperature, after thermomagnetic treatment, maximum permeability significantly increases.
The present invention compares with existing soft magnetic materials siliconized plate, have siliceous, phosphorus amount height, advantage such as technology is simple, cost is cheap, core loss is low, be China's development of electric power industry, a kind of novel soft magnetic materials is provided, solve in the electromechanical industries production soft magnetic materials nervous situation that supply falls short of demand but also can further relax.
The contrast of Chemical Composition (%)
Carbon silicomanganese phosphorus sulphur
Dynamo steel
＜0.1 1.0-1.4 0.15-0.35 ＜0.045 ＜0.035
＜0.1 1.0-1.4 0.15-0.35 ＜0.045 ＜0.030
＜0.1 2.0-2.5 0.15-0.35 ＜0.040 ＜0.035
The furnace transformer steel
Carbon silicomanganese phosphorus sulphur
＜0.08 3.10-3.75 ＜0.30 ＜0.025 ＜0.010
＜0.06 4.21-4.50 ＜0.15 ＜0.015 ＜0.006
＜0.06 4.21-4.50 ＜0.15 ＜0.015 ＜0.015
The high Si-P-Fe alloy of particulate state soft magnetism
Carbon silicomanganese phosphorus sulphur iron
＜4.5 6.50 ＜0.3 6 ＜0.03 82.67
Claims (1)
1, a kind of production method of particulate Si ferrorphosphorus, it comprises by iron ore is disposable and smelts into that siliceous (Si) amount is 6.5%, phosphorous (P) amount is 6%, carbon containing (C) amount＜4.5%, surplus is the high Si-P-Fe alloy of iron, smelts the material after qualified, is broken into the particle of 0.35-0.5 millimeter, behind the sieving and grading, mix with liquid silicic acid sodium salt tackiness agent in proportion, be cast into the iron core of various models, constitute soft magnet core after the thermomagnetic treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109058 CN1009375B (en) | 1988-09-28 | 1988-09-28 | Productive method for particulate si-p-fe alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109058 CN1009375B (en) | 1988-09-28 | 1988-09-28 | Productive method for particulate si-p-fe alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032197A CN1032197A (en) | 1989-04-05 |
| CN1009375B true CN1009375B (en) | 1990-08-29 |
Family
ID=4835323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88109058 Expired CN1009375B (en) | 1988-09-28 | 1988-09-28 | Productive method for particulate si-p-fe alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009375B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039986C (en) * | 1993-07-31 | 1998-09-30 | 杨兆安 | Method for production of blue brick and tile by using tunnel kiln |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397126B (en) * | 2013-08-01 | 2016-01-20 | 河南豫中铁合金有限公司 | A kind of ferrophosphorus and preparation method thereof |
| CN104561765A (en) * | 2013-10-13 | 2015-04-29 | 徐广哲 | Iron alloy additive containing low titanium and phosphorus and use method of iron alloy additive |
| CN111029124A (en) * | 2019-09-18 | 2020-04-17 | 佛山市中研非晶科技股份有限公司 | Powder efficient coating method and finished product powder and finished product magnetic powder core preparation method |
-
1988
- 1988-09-28 CN CN 88109058 patent/CN1009375B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039986C (en) * | 1993-07-31 | 1998-09-30 | 杨兆安 | Method for production of blue brick and tile by using tunnel kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032197A (en) | 1989-04-05 |
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