CN104250067B - A kind of method for preparing machinability mica glass-ceramics insulating materials using cullet and phlogopite - Google Patents
A kind of method for preparing machinability mica glass-ceramics insulating materials using cullet and phlogopite Download PDFInfo
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- CN104250067B CN104250067B CN201310495489.XA CN201310495489A CN104250067B CN 104250067 B CN104250067 B CN 104250067B CN 201310495489 A CN201310495489 A CN 201310495489A CN 104250067 B CN104250067 B CN 104250067B
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Abstract
The present invention is a kind of preparation method that machinability mica glass-ceramics insulating materials is prepared using cullet and phlogopite, is comprised the following steps that：Cullet and phlogopite are cleaned up repeatedly respectively, crushed, is crushed, screening is stand-by；Above two powder is subjected to batch mixing according to quality proportioning (mica accounts for 50~75%), grinding, the polyvinyl alcohol of 4~5wt% is added as binding agent, it is dry-pressing formed, cold isostatic compaction, shaping sample is placed on normal pressure-sintered in Muffle furnace, 800 DEG C~1500 DEG C of sintering temperature, keep the temperature 2h, cooled to room temperature, take out, that is, obtain one kind and prepare machinability mica glass-ceramics insulating materials using cullet and phlogopite, which has the advantages that cost is low, intensity is high and electrical insulation capability is good.
Description
Technical field
The present invention provide it is a kind of using cullet and phlogopite prepare machinability mica glass-ceramics insulating materials and its
Preparation method, belongs to engineering ceramic material technical field.
Background technology
Mica ceramics insulator is the insulator using mica as main insulation composition, it have heatproof height, high mechanical strength,
The characteristics such as electrical insulation capability is excellent, can process, stable chemical performance, be it is a kind of it is new, there is the insulation well explored potential ability
Sub- product.Compared with traditional ceramic insulator, composite insulator etc., there is many advantages.It can be said that mica ceramics is exhausted
Edge combines the comprehensive advantage of the composite insulator being widely used at present and ceramic insulator, fully meets electric express locomotive
Requirement.
Mica ceramics insulator has extraordinary competitiveness on the locomotives such as high ferro, conventional power locomotive, subway, can be with
Apply in the various electrical equipments, circuit of intra-locomotive, such as motor, resistor, electric cabinet.China is just in Efforts To Develop railway
Electrified transformation and new construction.With the electrified process of China railways, the electric express locomotive land of more than speed per hour 200km
It is continuous to put into production, the high ferro also commercial operation of part speed per hour 350km.In addition, the fast development of domestic multiple cities
The projects such as inter-city rail transit, subway, the coming years whole nation will there are tens of urban rail transit lines to put into effect.Due to city
The vehicle train operation density of track is higher, and correspondingly the demand of insulator is also very huge.
However, the price of machinability mica ceramics insulator is higher.It is one piece (25 × 25 slight on international market at present
× 25mm, weight 40g or so) workable glass ceramic price be up to 101 pounds, domestic market price also 300~1000 yuan/
Kg.At present, the preparation method of mica ceramics mainly has two kinds of fusion method and sintering process.Fusion method adds frit due to needing
Heat is to high temperature melting, and high energy consumption is so as to cause cost higher.Also cause in addition, the raw material for preparing glass dust is mainly industrial chemicals
The cost of mica glass-ceramics remains high.This point seriously constrains the marketing of mica ceramics insulator and extensively should
With.Raw material need not be heated fusing, it can be achieved that low-temperature sintering by sintering process, therefore save energy consumption.Therefore it is exhausted for mica ceramics
The expensive feature of edge, starts with terms of raw material and preparation process two, new add is developed by technological innovation
Work mica glass-ceramics, is greatly lowered the manufacturing cost of such insulator product.
The content of the invention
It is exhausted using cullet and phlogopite preparation machinability mica glass-ceramics it is an object of the invention to provide one kind
Edge material and preparation method thereof, is specifically that a kind of cost is low, intensity is high, electrical insulation capability is good using phlogopite and cullet as original
Expect the preparation method through mica glass-ceramics composite material made from dry-pressing formed, cold isostatic compaction and high temperature sintering.
It is phosphorus ore accessory substance wherein to prepare the phlogopite used in machinability mica glass-ceramics insulating materials, and sheet, passes through
Broken, crushing, screening, particle diameter is at 20~30 μm.
It is useless container glass wherein to prepare the glass used in machinability mica glass-ceramics insulating materials, and main component is
SiO2＞ 70%, CaO ＞ 10%, Na2O ＞ 10%, through broken, crushing, screening, particle diameter is at 20~30 μm.
The different quality proportioning for wherein preparing machinability mica glass-ceramics insulating materials mica and glass is that mica accounts for
50~75%.
It is as follows wherein to prepare machinability mica glass-ceramics insulating materials forming requirements, dry-pressing formed pressure 20MPa, is protected
Press time 40s；Cold isostatic compaction pressure 120MPa, dwell time 90s.
It is polyvinyl alcohol wherein to prepare the binding agent used in machinability mica glass-ceramics insulating materials, and additive amount is original
Expect 4~5wt% of total amount.
It is as follows wherein to prepare machinability mica glass-ceramics insulating materials sin-tering mechanism：Normal pressure-sintered, sintering temperature is
800 DEG C~1500C, soaking time 2h, natural cooling.
One kind of the invention prepares machinability mica glass-ceramics insulating materials and its preparation using cullet and phlogopite
Method, its advantage and effect are this, and the cost of material is low, intensity is high and electrical insulation capability is good.
Brief description of the drawings
(70%) 1020C, mica account for Fig. 1 machinability mica glass-ceramics insulating materials SEM photograph
(950 DEG C, 65%) mica accounts for Fig. 2 machinability mica glass-ceramics insulating materials SEM photograph
(70%) 1020C, mica account for Fig. 3 machinability mica glass-ceramics insulating materials XRD spectrum
Fig. 4 machinability mica glass-ceramics insulating materials resistivity varies with temperature curve
Fig. 5 machinability mica glass-ceramics insulating materials flexural strengths vary with temperature curve
Embodiment
The features of the present invention is described further with reference to example, but is not intended to be limited to following embodiments.
Embodiment one：
First, cullet is cleaned up repeatedly, room temperature naturally dry, then crushes, and crushes, and 100 mesh sieves point are stand-by；
Phlogopite is crushed, is crushed, 100 mesh sieves point, obtained mica powder is stand-by.By glass dust and mica powder according to quality proportioning
(mica accounts for 65%) carries out batch mixing, and grinding, obtains mixed-powder.Add 4~5wt%'s in glass dust and mica powder mixture
As binding agent, regrinding, then claims the dispensing powder of 3.5g or so, is put into mould, is placed in pressed powder polyvinyl alcohol
Dry-pressing formed on machine, pressure used is 20MPa, dwell time 40s or so.Cold isostatic compaction is carried out after dry-pressing immediately.
Before isostatic pressed, small bar sample is carefully placed into rubber gloves respectively, is tightened after rubber gloves is vacuumized, be subsequently placed in cold etc.
In static pressure machine, with certain rate of rise, after being pressurized to 120MPa, pressurize 90s, then takes out.Testing bar after shaping is put
It is normal pressure-sintered in Muffle furnace.850 DEG C of sintering temperature, keeps the temperature 2h, and cooled to room temperature, takes out, that is, obtains a kind of using useless
Glass and phlogopite prepare machinability mica glass-ceramics insulating materials.Wherein prepare the insulation of machinability mica glass-ceramics
Phlogopite used in material is phosphorus ore accessory substance, and sheet, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein preparing can
Glass used in processability mica glass-ceramics insulating materials is useless container glass, main component SiO2＞ 70%, CaO ＞
10%, Na2O ＞ 10%, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein prepare machinability mica glass-ceramics
The mica of insulating materials is that mica accounts for 65% with glass proportioning, wherein preparing the shaping of machinability mica glass-ceramics insulating materials
It is required that as follows, dry-pressing formed pressure 20MPa, dwell time 40s；Cold isostatic compaction pressure 120MPa, dwell time 90s.Its
The middle binding agent prepared used in machinability mica glass-ceramics insulating materials is polyvinyl alcohol, and additive amount is the 4 of raw material total amount
~5wt%.Wherein prepare that machinability mica glass-ceramics insulating materials sin-tering mechanism is as follows, and normal pressure-sintered, sintering temperature is
850 DEG C, soaking time 2h.
This machinability mica glass-ceramics insulating materials is tested for the property：The density of material is 1.776g cm-3, flexural strength 25.48MPa, resistivity 3.83 × 1010Ω·m。
Embodiment two：
First, cullet is cleaned up repeatedly, room temperature naturally dry, then crushes, and crushes, and 100 mesh sieves point are stand-by；
Phlogopite is crushed, is crushed, 100 mesh sieves point, obtained mica powder is stand-by.By glass dust and mica powder according to quality proportioning
(mica accounts for 65%) carries out batch mixing, and grinding, obtains mixed-powder.Add 4~5wt%'s in glass dust and mica powder mixture
As binding agent, regrinding, then claims the dispensing powder of 3.5g or so, is put into mould, is placed in pressed powder polyvinyl alcohol
Dry-pressing formed on machine, pressure used is 20MPa, dwell time 40s or so.Cold isostatic compaction is carried out after dry-pressing immediately.
Before isostatic pressed, small bar sample is carefully placed into rubber gloves respectively, is tightened after rubber gloves is vacuumized, be subsequently placed in cold etc.
In static pressure machine, with certain rate of rise, after being pressurized to 120MPa, pressurize 90s, then takes out.Testing bar after shaping is put
It is normal pressure-sintered in Muffle furnace.900 DEG C of sintering temperature, keeps the temperature 2h, and cooled to room temperature, takes out, that is, obtains a kind of using useless
Glass and phlogopite prepare machinability mica glass-ceramics insulating materials.Wherein prepare the insulation of machinability mica glass-ceramics
Phlogopite used in material is phosphorus ore accessory substance, and sheet, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein preparing can
Glass used in processability mica glass-ceramics insulating materials is useless container glass, main component SiO2＞ 70%, CaO ＞
10%, Na2O ＞ 10%, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein prepare machinability mica glass-ceramics
The mica of insulating materials is that mica accounts for 65% with glass proportioning, wherein preparing the shaping of machinability mica glass-ceramics insulating materials
It is required that as follows, dry-pressing formed pressure 20MPa, dwell time 40s；Cold isostatic compaction pressure 120MPa, dwell time 90s.Its
The middle binding agent prepared used in machinability mica glass-ceramics insulating materials is polyvinyl alcohol, and additive amount is the 4 of raw material total amount
~5wt%.Wherein prepare that machinability mica glass-ceramics insulating materials sin-tering mechanism is as follows, and normal pressure-sintered, sintering temperature is
900 DEG C, soaking time 2h.
This machinability mica glass-ceramics insulating materials is tested for the property：The density of material is 1.960g cm-3, flexural strength 35.23MPa, resistivity 5.00 × 1010Ω2·m。
Embodiment three：
First, cullet is cleaned up repeatedly, room temperature naturally dry, then crushes, and crushes, and 100 mesh sieves point are stand-by；
Phlogopite is crushed, is crushed, 100 mesh sieves point, obtained mica powder is stand-by.By glass dust and mica powder according to quality proportioning
(mica accounts for 70%) carries out batch mixing, and grinding, obtains mixed-powder.Add 4~5wt%'s in glass dust and mica powder mixture
As binding agent, regrinding, then claims the dispensing powder of 3.5g or so, is put into mould, is placed in pressed powder polyvinyl alcohol
Dry-pressing formed on machine, pressure used is 20MPa, dwell time 40s or so.Cold isostatic compaction is carried out after dry-pressing immediately.
Before isostatic pressed, small bar sample is carefully placed into rubber gloves respectively, is tightened after rubber gloves is vacuumized, be subsequently placed in cold etc.
In static pressure machine, with certain rate of rise, after being pressurized to 120MPa, pressurize 90s, then takes out.Testing bar after shaping is put
It is normal pressure-sintered in Muffle furnace.Sintering temperature 950C, keeps the temperature 2h, and cooled to room temperature, takes out, that is, obtains one kind using useless glass
Glass and tailing prepare machinability mica glass-ceramics insulating materials.Wherein prepare machinability mica glass-ceramics insulating materials
Phlogopite used is phosphorus ore accessory substance, and sheet, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein preparing to process
Property mica glass-ceramics insulating materials used in glass be useless container glass, main component SiO2＞ 70%, CaO ＞ 10%,
Na2O ＞ 10%, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein prepare machinability mica glass-ceramics insulation material
The mica of material is that mica accounts for 70% with glass proportioning, wherein preparing machinability mica glass-ceramics insulating materials forming requirements such as
Under, dry-pressing formed pressure 20MPa, dwell time 40s；Cold isostatic compaction pressure 120MPa, dwell time 90s.Wherein prepare
Binding agent used in machinability mica glass-ceramics insulating materials is polyvinyl alcohol, additive amount for raw material total amount 4~
5wt%.Wherein prepare that machinability mica glass-ceramics insulating materials sin-tering mechanism is as follows, and normal pressure-sintered, sintering temperature is
950C, soaking time 2h.
This machinability mica glass-ceramics insulating materials is tested for the property：The density of material is 1.982g cm-3, flexural strength 42.93MPa, resistivity 5.22 × 1010Ω·m。
Example IV：
First, cullet is cleaned up repeatedly, room temperature naturally dry, then crushes, and crushes, and 100 mesh sieves point are stand-by；
Phlogopite is crushed, is crushed, 100 mesh sieves point, obtained mica powder is stand-by.By glass dust and mica powder according to quality proportioning
(mica accounts for 70%) carries out batch mixing, and grinding, obtains mixed-powder.Add 4~5wt%'s in glass dust and mica powder mixture
As binding agent, regrinding, then claims the dispensing powder of 3.5g or so, is put into mould, is placed in pressed powder polyvinyl alcohol
Dry-pressing formed on machine, pressure used is 20MPa, dwell time 40s or so.Cold isostatic compaction is carried out after dry-pressing immediately.
Before isostatic pressed, small bar sample is carefully placed into rubber gloves respectively, is tightened after rubber gloves is vacuumized, be subsequently placed in cold etc.
In static pressure machine, with certain rate of rise, after being pressurized to 120MPa, pressurize 90s, then takes out.Testing bar after shaping is put
It is normal pressure-sintered in Muffle furnace.1020 DEG C of sintering temperature, keeps the temperature 2h, and cooled to room temperature, takes out, that is, obtains a kind of using useless
Glass and tailing prepare machinability mica glass-ceramics insulating materials.Wherein prepare machinability mica glass-ceramics insulation material
Material phlogopite used is phosphorus ore accessory substance, and sheet, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein preparing to add
Glass used in work mica glass-ceramics insulating materials is useless container glass, main component SiO2＞ 70%, CaO ＞
10%, Na2O ＞ 10%, through broken, crushing, screening, particle diameter is at 20~30 μm.Wherein prepare machinability mica glass-ceramics
The mica of insulating materials is that mica accounts for 70% with glass proportioning, wherein preparing the shaping of machinability mica glass-ceramics insulating materials
It is required that as follows, dry-pressing formed pressure 20MPa, dwell time 40s；Cold isostatic compaction pressure 120MPa, dwell time 90s.Its
The middle binding agent prepared used in machinability mica glass-ceramics insulating materials is polyvinyl alcohol, and additive amount is the 4 of raw material total amount
~5wt%.Wherein prepare that machinability mica glass-ceramics insulating materials sin-tering mechanism is as follows, and normal pressure-sintered, sintering temperature is
1020 DEG C, soaking time 2h.
This machinability mica glass-ceramics insulating materials is tested for the property：The density of material is 1.976g cm-3, flexural strength 49.36MPa, resistivity 5.30 × 1010Ω·m。
Claims (4)
1. a kind of preparation method that machinability mica glass-ceramics insulating materials is prepared using cullet and phlogopite, its feature
It is：This method includes the following steps：
(1) cullet is cleaned up repeatedly first, room temperature naturally dry, then crushes, and crushes, 100 mesh sieves point, obtains A material；
Phlogopite is crushed, is crushed, 100 mesh sieves point, obtain B material；
(2) A material and B material are matched by different quality, mica accounts for 50~75%, carries out batch mixing, grinding, obtains C material；
(3) suitable amount of adhesive is added in C material, carries out dry forming and cold isostatic compaction successively, obtain D material；
(4) D material are carried out to normal pressure-sintered, obtained machinability mica glass-ceramics insulating materials in Muffle furnace；
It is useless container glass to prepare the glass used in machinability mica glass-ceramics insulating materials, main component SiO2＞
70%, CaO ＞ 10%, Na2O ＞ 10%, through broken, crushing, screening, particle diameter is at 20~30 μm；
It is polyvinyl alcohol to prepare the binding agent used in machinability mica glass-ceramics insulating materials, and additive amount is raw material total amount
4~5wt%；
Prepare machinability mica glass-ceramics insulating materials sin-tering mechanism it is as follows, it is normal pressure-sintered, sintering temperature for 800C~
1500 DEG C, soaking time 2h, natural cooling.
2. one kind according to claim 1 prepares machinability mica glass-ceramics insulation material using cullet and phlogopite
The preparation method of material, it is characterised in that：The phlogopite prepared used in machinability mica glass-ceramics insulating materials is phosphorus ore pair
Product, through broken, crushing, screening, particle diameter is at 20~30 μm.
3. one kind according to claim 1 prepares machinability mica glass-ceramics insulation material using cullet and phlogopite
The preparation method of material, it is characterised in that：Prepare the different quality of machinability mica glass-ceramics insulating materials mica and glass
Proportioning is that mica accounts for 50~75%.
4. one kind according to claim 1 prepares machinability mica glass-ceramics insulation material using cullet and phlogopite
The preparation method of material, it is characterised in that：It is as follows to prepare machinability mica glass-ceramics insulating materials forming requirements, it is dry-pressing formed
Pressure 20MPa, dwell time 40s；Cold isostatic compaction pressure 120MPa, dwell time 90s.
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| CN106430982A (en) * | 2016-09-19 | 2017-02-22 | 内蒙古科韵环保材料股份公司 | Recycling method of glass ceramic material |
| CN109333768B (en) * | 2018-10-18 | 2020-11-10 | 苏州苏绝电工材料股份有限公司 | Method for manufacturing special-shaped mica part |
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