CN108794027A - A kind of electromagnetic crucible heat-resisting material - Google Patents
A kind of electromagnetic crucible heat-resisting material Download PDFInfo
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- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
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- C04B2235/3891—Silicides, e.g. molybdenum disilicide, iron silicide
Abstract
The invention discloses a kind of electromagnetic crucible heat-resisting materials, and by mass fraction, its material component includes：45-58 parts of aluminium oxide, 24-32 parts of silicon carbide, 2-6 parts of yttrium oxide, 12-20 parts of white carbon, 8-14 parts of calcium carbonate, 4-12 parts of boron nitride, 5-9 parts of alumina silicate, 1-3 parts of nickle silicide, 6-14 parts of bonding agent.Electromagnetic crucible heat-resisting material, most importantly its high temperature resistant long with high strength, service life can be applied and be smelted in refractory metal, can smelt various metals, applicability is wide.
Description
Technical field
The present invention relates to crucible material technical field more particularly to a kind of electromagnetic crucible heat-resisting materials.
Background technology
Electromagnetic induction industrial furnace is that whirlpool is generated inside heater under the induction coil alternating electromagnetism field action in induction furnace
Stream, heater fever, heater by heat transmission to metal object, to achieve the effect that heating or fusing.
And it is exactly crucible that electromagnetism smelting furnace is most important, because crucible is related to the quality and melting efficiency of metal melting.
Existing crucible is made of the graphite of single composition mostly, and intensity is poor, and service life is short, most importantly its heat-resisting quantity
Can be poor, it is impossible to meet the temperature of refractory metal melting.
Invention content
In view of this, the present invention provides a kind of electromagnetic crucible heat-resisting materials.
A kind of electromagnetic crucible heat-resisting material, by mass fraction, its material component includes：
Preferably, by mass fraction, its material component includes：
Preferably, by mass fraction, its material component includes：
Preferably, the white carbon is at least one of precipitated silica, gas-phase silica and superfine white carbon black.
Preferably, the white carbon is the mixing of gas-phase silica and superfine white carbon black, and mixing quality ratio is 2:1.
Preferably, the calcium carbonate is precipitated calcium carbonate or powdered whiting.
Preferably, the boron nitride is one kind in water chestnut side's boron nitride, cubic boron nitride and buergerite boron nitride.
Preferably, the bonding agent is boron glass or lead glass.
The beneficial effects of the present invention are：Electromagnetic crucible heat-resisting material, it is long with high strength, service life, most
Important is its high temperature resistant, it can be applied and be smelted in refractory metal, various metals can be smelted, applicability is wide.
Specific implementation mode：
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
It should be appreciated that ought use in this specification and in the appended claims, term " comprising " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, element, component and/or its presence or addition gathered.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combinations and all possible combinations of one or more of associated item listed, and includes these combinations.
Embodiment 1
Electromagnetic crucible heat-resisting material, by being formed as follows by mass component：
The preparation method of electromagnetic crucible heat-resisting material：
Weigh aluminium oxide, silicon carbide, yttrium oxide, precipitated silica, precipitated calcium carbonate, water chestnut side's boron nitride, the silicon of component amount
Sour aluminium, nickle silicide, boron glass；
By aluminium oxide, silicon carbide, yttrium oxide, precipitated silica, precipitated calcium carbonate, water chestnut side's boron nitride, alumina silicate, nickle silicide
And boron glass is added in ball mill, ratio of grinding media to material is 40 in ball mill:1, Ball-milling Time 3h；
By aluminium oxide, silicon carbide, yttrium oxide, precipitated silica, precipitated calcium carbonate, water chestnut side's boron nitride, the silicic acid after ball milling
Aluminium, nickle silicide and boron glass are added into high mixer, carry out mechanical mixture, and mixing machine rotating speed is 600r/min, mixing
35min obtains batch mixing a；
Batch mixing a is added into molding machine, (crucible base) base, crushing strength 260MPa is pressed；
By type (crucible base) base progress high temperature be pre-sintered, pre-sintering temperature be 700 DEG C, be pre-sintered the time be
2.5h；
Type (crucible base) base of pre-sintering is sintered again, sintering temperature is 1350 DEG C, and sintering time 8h is obtained
Heat-resisting material.
Embodiment 2
Electromagnetic crucible heat-resisting material, by being formed as follows by mass component：
The preparation method of electromagnetic crucible heat-resisting material：
Weigh aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica, powdered whiting, cubic boron nitride, the silicon of component amount
Sour aluminium, nickle silicide, lead glass；
By aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica, powdered whiting, cubic boron nitride, alumina silicate, nickle silicide
And lead glass is added in ball mill, ratio of grinding media to material is 35 in ball mill:1, Ball-milling Time 2h；
By aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica, powdered whiting, cubic boron nitride, the silicic acid after ball milling
Aluminium, nickle silicide and lead glass are added into high mixer, carry out mechanical mixture, and mixing machine rotating speed is 820r/min, mixing
27min obtains batch mixing a；
Batch mixing a is added into molding machine, (crucible base) base, crushing strength 310MPa is pressed；
By type (crucible base) base progress high temperature be pre-sintered, pre-sintering temperature be 500 DEG C, be pre-sintered the time be
3.8h；
Type (crucible base) base of pre-sintering is sintered again, sintering temperature is 1380 DEG C, and sintering time 7h is obtained
Heat-resisting material.
Embodiment 3
Electromagnetic crucible heat-resisting material, by being formed as follows by mass component：
The preparation method of electromagnetic crucible heat-resisting material：
Weigh the aluminium oxide of component amount, silicon carbide, yttrium oxide, superfine white carbon black, precipitated calcium carbonate, buergerite boron nitride,
Alumina silicate, nickle silicide, boron glass；
By aluminium oxide, silicon carbide, yttrium oxide, superfine white carbon black, precipitated calcium carbonate, buergerite boron nitride, alumina silicate, silication
Nickel and boron glass are added in ball mill, and ratio of grinding media to material is 20 in ball mill:1, Ball-milling Time 2h；
By aluminium oxide, silicon carbide, yttrium oxide, superfine white carbon black, precipitated calcium carbonate, buergerite boron nitride, the silicon after ball milling
Sour aluminium, nickle silicide and boron glass are added into high mixer, carry out mechanical mixture, and mixing machine rotating speed is 900r/min, mixing
25min obtains batch mixing a；
Batch mixing a is added into molding machine, (crucible base) base, crushing strength 320MPa is pressed；
Type (crucible base) base progress high temperature is pre-sintered, pre-sintering temperature is 500 DEG C, and the pre-sintering time is 4h；
Type (crucible base) base of pre-sintering is sintered again, sintering temperature is 1500 DEG C, and sintering time 5h is obtained
Heat-resisting material.
Embodiment 4
Electromagnetic crucible heat-resisting material, by being formed as follows by mass component：
The preparation method of electromagnetic crucible heat-resisting material：
Weigh aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica and the superfine white carbon black of component amount, powdered whiting,
Cubic boron nitride, alumina silicate, nickle silicide, lead glass；
By aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica and superfine white carbon black, powdered whiting, cube nitridation
Boron, alumina silicate, nickle silicide and lead glass are added in ball mill, and ratio of grinding media to material is 25 in ball mill:1, Ball-milling Time 3h；
By aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica and the superfine white carbon black, powdered whiting, vertical after ball milling
Square boron nitride, alumina silicate, nickle silicide and lead glass are added into high mixer, carry out mechanical mixture, and mixing machine rotating speed is 650r/
Min mixes 32min, obtains batch mixing a；
Batch mixing a is added into molding machine, (crucible base) base, crushing strength 280MPa is pressed；
Type (crucible base) base progress high temperature is pre-sintered, pre-sintering temperature is 700 DEG C, and the pre-sintering time is 3h；
Type (crucible base) base of pre-sintering is sintered again, sintering temperature is 1460 DEG C, and sintering time 6h is obtained
Heat-resisting material.
Embodiment 5
Electromagnetic crucible heat-resisting material, by being formed as follows by mass component：
The preparation method of electromagnetic crucible heat-resisting material：
Weigh aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica, precipitated calcium carbonate, water chestnut side's boron nitride, the silicon of component amount
Sour aluminium, nickle silicide, lead glass；
By aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica, precipitated calcium carbonate, water chestnut side's boron nitride, alumina silicate, nickle silicide
And lead glass is added in ball mill, ratio of grinding media to material is 30 in ball mill:1, Ball-milling Time 3h；
By aluminium oxide, silicon carbide, yttrium oxide, gas-phase silica, precipitated calcium carbonate, water chestnut side's boron nitride, the silicic acid after ball milling
Aluminium, nickle silicide and lead glass are added into high mixer, carry out mechanical mixture, and mixing machine rotating speed is 750r/min, mixing
29min obtains batch mixing a；
Batch mixing a is added into molding machine, (crucible base) base, crushing strength 300MPa is pressed；
By type (crucible base) base progress high temperature be pre-sintered, pre-sintering temperature be 640 DEG C, be pre-sintered the time be
3.4h；
Type (crucible base) base of pre-sintering is sintered again, sintering temperature is 1420 DEG C, and sintering time 6h is obtained
Heat-resisting material.
It can be shaped to electromagnetic crucible by the heat-resisting material of embodiment 1-5.It is strong that its heat-resisting material is tested respectively
Degree, access times and high temperature resistance are tested, and test result is as follows：
It can be seen that the heat-resisting material of embodiment 1-5, flexural strength average out to according to the data in performance test table
To 102Mpa, service life can averagely reach 362 times, and refractoriness can reach 1580 DEG C.
It is to specific embodiment provided by the present invention above.
The present invention is described in detail in specification, structural principle of the specific case used herein to the present invention
And embodiment is expounded, above example is merely used to help understand the method and its core concept of the present invention；Meanwhile
For those of ordinary skill in the art, according to the thought of the present invention, has change in specific embodiments and applications
Become place, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (8)
1. a kind of electromagnetic crucible heat-resisting material, which is characterized in that by mass fraction, its material component includes：
2. crucible heat-resisting material according to claim 1, which is characterized in that by its material component packet of mass fraction
It includes：
3. crucible heat-resisting material according to claim 2, which is characterized in that by its material component packet of mass fraction
It includes：
4. according to any crucible heat-resisting materials of claim 1-3, it is characterised in that：The white carbon is that precipitation is white
At least one of carbon black, gas-phase silica and superfine white carbon black.
5. crucible heat-resisting material according to claim 4, it is characterised in that：The white carbon be gas-phase silica with
And the mixing of superfine white carbon black, mixing quality ratio are 2:1.
6. according to any crucible heat-resisting materials of claim 1-3, it is characterised in that：The calcium carbonate is lightweight carbon
Sour calcium or powdered whiting.
7. according to any crucible heat-resisting materials of claim 1-3, it is characterised in that：The boron nitride is water chestnut side's nitrogen
Change one kind in boron, cubic boron nitride and buergerite boron nitride.
8. according to any crucible heat-resisting materials of claim 1-3, it is characterised in that：The bonding agent is boron glass
Or lead glass.
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| CN201810762704.0A CN108794027A (en) | 2018-07-12 | 2018-07-12 | A kind of electromagnetic crucible heat-resisting material |
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| CN201810762704.0A CN108794027A (en) | 2018-07-12 | 2018-07-12 | A kind of electromagnetic crucible heat-resisting material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020214755A1 (en) * | 2019-04-17 | 2020-10-22 | Materion Corporation | Crucibles and compositions and processes for making same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961445A (en) * | 2015-05-13 | 2015-10-07 | 苏州市英富美欣科技有限公司 | Composite ceramic material used for crucible and preparation method thereof |
| CN107686354A (en) * | 2017-09-18 | 2018-02-13 | 佛山市高捷工业炉有限公司 | A kind of blank of crucible |
-
2018
- 2018-07-12 CN CN201810762704.0A patent/CN108794027A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961445A (en) * | 2015-05-13 | 2015-10-07 | 苏州市英富美欣科技有限公司 | Composite ceramic material used for crucible and preparation method thereof |
| CN107686354A (en) * | 2017-09-18 | 2018-02-13 | 佛山市高捷工业炉有限公司 | A kind of blank of crucible |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020214755A1 (en) * | 2019-04-17 | 2020-10-22 | Materion Corporation | Crucibles and compositions and processes for making same |
| TWI761809B (en) * | 2019-04-17 | 2022-04-21 | 美商萬騰榮公司 | Crucibles and compositions and processes for making same |
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Application publication date: 20181113 |