CN102295416B - Wear and corrosion resistant microcrystalline glass and manufacture method thereof - Google Patents
Wear and corrosion resistant microcrystalline glass and manufacture method thereof Download PDFInfo
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- CN102295416B CN102295416B CN 201110145563 CN201110145563A CN102295416B CN 102295416 B CN102295416 B CN 102295416B CN 201110145563 CN201110145563 CN 201110145563 CN 201110145563 A CN201110145563 A CN 201110145563A CN 102295416 B CN102295416 B CN 102295416B
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Abstract
Provided are wear and corrosion resistant microcrystalline glass and a manufacture method thereof. The microcrystalline glass is prepared by the following raw materials by weight: reconcentrated mine tailings of Baiyunebo ores: fly ash: quartz sand: limestone: sodium carbonate: borax=40-70: 10-30:20-40:10-30:2-10:2-6. The process of the method is as follows: melting temperature is 1300 to 1500 DEG C, preheating temperature of a glass press mold is 300 to 800 DEG C, mold stripping temperature of glass castings is 600 to 900 DEG C, isothermal temperature of glass castings is 550 to 650 DEG C, the glass castings maintains the temperature for 0.5 hour to 5 hours, crystallization temperature is 810 to 850 DEG C, the heating rate of crystallization is less than 5 DEG C/min, and the glass castings are cooled to a temperature less than 100 DEG C after crystallization and then are taken out from a furnace. The microcrystalline glass can be used for fabrication of composite bend pipes or composite grooves with the microcrystalline glass as inner liner. The breaking strength of the microcrystalline glass manufactured in the invention is greater than 170 MPa, microhardness is no less than Hv1500, and wear resistance is two times of that of cast stones. Therefore, the composite bend pipes or composite grooves with the microcrystalline glass provided in the invention as inner liner have the advantages of wear resistance, corrosion resistance and low cost.
Description
Technical field
The present invention relates to a kind of wear-resisting, corrosion-resistant devitrified glass and manufacture method thereof.This manufacture method comprises the manufacture method of the composite-curve of devitrified glass lining, the manufacture method of the compound groove of devitrified glass lining; Wherein, the manufacture method of wear-resisting, corrosion-resistant devitrified glass lining composite-curve comprises the prescription of devitrified glass bend pipe, and anti-softening transform technology during devitrified glass bend pipe crystallization is with the method for the compound assembling of steel bend pipe.This composite-curve is applied to wear-resisting, corrosion resistant material field.
Background technology
At present, fields such as oil, chemical industry, coal, metallurgy, electric power, building need the wear resistant corrosion resistant bend pipe, are the most serious positions of wearing and tearing in the pipe-line transportation, and are the key parts in the pipe-line transportation.Present composite-curve has ceramic-lined, cast stone liner and spread the aluminum oxide liner certainly, wherein, ceramic-lined mostly being at the steel bend pipe inwall inlayed the bar shaped ceramic plate, and in use ceramic plate comes off easily, thereby shortening service life, and for the bigger pipe fitting of internal diameter, it is more convenient that inwall is inlayed the bar shaped ceramic plate, but for the less pipe fitting of internal diameter, it is difficult that operation just becomes.Cast stone liner composite-curve is spliced by cast stone liner straight tube, is straight tube is cut along different angles, and then welds together that this technology is time-consuming, and cost is higher.From spreading the aluminum oxide inner liner compound pipe because alumina layer is usually not fine and close, there is the space, the gap at first is worn through, and is difficult to satisfy the requirement of corrosion-proof wear.Therefore, can consider devitrified glass bend pipe and the steel bend pipe complex group of compression moulding are fitted together, so, also be badly in need of wanting a kind of wear-resisting, corrosion-resistant devitrified glass, with the liner of this wear-resisting, corrosion-resistant devitrified glass as composite-curve, improve wear-resisting, the erosion resistance of bend pipe.
Summary of the invention
The object of the present invention is to provide a kind of wear-resisting, corrosion-resistant devitrified glass and manufacture method thereof.That devitrified glass of the present invention has is wear-resisting, corrosion-resistant, use baiyuneboite to select mine tailing again, and cost is low; Has the advantage wear-resisting, corrosion-resistant, that cost is low with devitrified glass of the present invention as composite-curve or the compound groove of liner.
For achieving the above object, the present invention takes following technical scheme:
A kind of wear-resisting, corrosion-resistant devitrified glass, this wear-resisting, corrosion-resistant devitrified glass is made by the raw material of following ratio of weight and number:
Baiyuneboite selects mine tailing coal ash quartz sand Wingdale soda ash borax again
40-70 10-30 20-40 10-30 2-10 2-6。
The used main raw material of the present invention is that baiyuneboite selects mine tailing again, it is different from the mine tailing that Baogang's tailing dam is stacked, select mine tailing to refer to the residuum of baiyuneboite after repeatedly selecting iron, selecting rare earth again, after particularly adopting method for floating repeatedly to select rare earth, make the content of rare earth that selects again in the mine tailing be less than 2.0 weight %, even less than 0.5 weight %, but fluorine (F) content needs more than or equal to 5 weight %.That uses among the present invention selects mine tailing because of the difference of raw ore in baiyuneboite block position again, and the difference of each dressing-works ore-dressing technique, select the composition of mine tailing there are differences again, the composition that selects mine tailing again in each dressing-works is after concluding, its main component scope be (weight %): TFe15-25 (wherein, TFe refers to full iron, namely selects all iron that contains in the mine tailing again), SiO
215-30, F5-12, CaO20-35, ReO＜3.0.Except main component, select in the mine tailing more also to comprise (weight %): K
2O+Na
2O (2-4), MgO (1-3), Al
2O
3(1-4), MnO (1-2), BaO (3-5), Nb
2O
5(0.1-0.3), all the other are volatile matter.The mentioned component scope is the summary of selecting the mine tailing main chemical compositions again to multiple batches of, rather than a certain batch full composition analysis.The present invention does not do requirement to selecting the content of rare earth in the mine tailing again, and the mine tailing that selects again that does not just contain rare earth also can be as main raw material of the present invention, and wishes to select not contain rare earth in the mine tailing again, so just can not cause waste to rare earth.The used baiyuneboite of the present invention selects mine tailing to be made up of following composition and content again:
TFe 15-25 weight %,
SiO
215-30 weight %,
F 5-12 weight %,
CaO 20-35 weight %,
ReO＜3.0 weight %,
K
2O+Na
2O 2-4 weight %,
MgO 1-3 weight %,
Al
2O
31-4 weight %,
MnO 1-2 weight %,
BaO 3-5 weight %,
Nb
2O
50.1-0.3 weight %,
Rare earth＜2.0 weight %,
Surplus is volatile matter.
Select in the mine tailing at the used baiyuneboite of the present invention, the content of preferred rare earth is less than 0.5 weight % again.
Compare with the prescription of devitrified glass in other the prior art, specially do not add such as TiO in the prescription of the present invention
2, Cr
2O
3, CaF
2Deng nucleating agent, but utilized some mineral association that selects again in the mine tailing as nucleating agent, and the grain-size after the crystallization is less than 1 micron.Other main raw material is flyash, quartz sand, Wingdale, soda ash, borax etc.
A kind of manufacture method of wear-resisting, corrosion-resistant devitrified glass, this method may further comprise the steps:
(1) raw material with the following portions by weight ratio mixes;
Baiyuneboite selects mine tailing coal ash quartz sand Wingdale soda ash borax again
40-70 10-30 20-40 10-30 2-10 2-6；
(2) above-mentioned raw materials is mixed the back and under 1300-1500 ℃ of condition, melt, obtain melten glass liquid;
(3) with the mould and die preheating of glass press to 300-800 ℃, pour into melten glass liquid then, when treating that the glass foundry goods cools to 600-900 ℃, die sinking is taken out the glass foundry goods and is put into the crystallization furnace crystallization, this crystallization process is, at first the glass foundry goods is sent in 550-650 ℃ the kiln, be incubated 0.5-5 hour, make it soaking and eliminate stress, heat up less than 5 ℃/min with heat-up rate then, be warmed up to nucleation temperature 700-730 ℃, be incubated 2-4 hour, carry out coring and handle; Continue to heat up less than 5 ℃/min with heat-up rate then, be warmed up to crystallization temperature 810-850 ℃, be incubated 2-4 hour, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains devitrified glass.
Another distinguishing feature of the present invention is, on the basis of microcrystalline glass formula of the present invention, takes special heating crystallization system when crystallization, rather than depends on forming mould and prevent softening transform.
In the manufacture method of wear-resisting, corrosion-resistant devitrified glass of the present invention, the mould of described glass press is bend pipe mould, makes the devitrified glass bend pipe, with this devitrified glass bend pipe and the compound assembling of steel bend pipe, makes the composite-curve of devitrified glass lining.
In the manufacture method of wear-resisting, corrosion-resistant devitrified glass of the present invention, the mould of described glass press is the bend pipe mould from two lobes of two symmetries of longitudinal axis centerline direction rip cutting, made devitrified glass bend pipe also is the devitrified glass bend pipe from two lobes of two symmetries of longitudinal axis centerline direction rip cutting, and the wall thickness of devitrified glass bend pipe is 8-25mm; Described steel bend pipe also is the individual steel bend pipe from two lobes of two symmetries of longitudinal axis centerline direction rip cutting; Its complex group process of assembling is: the devitrified glass bend pipe difference lining of two lobes of two symmetries is within the steel bend pipe of two lobes of two symmetries, devitrified glass bend pipe and steel bend pipe adhesive bond, and by the composite-curve that becomes a complete devitrified glass lining after the bolted.
The preparation method of devitrified glass lining composite-curve of the present invention uses for reference the method for casting, and somatotype on the plane of symmetry of bend pipe is made mould then.Utilize glass press to suppress half of bend pipe, the two halves of bend pipe has all designed locating structure, in the time of guaranteeing assembling butt joint tight, do not stay the slit.Steel bend pipe is two halves also, by bolted, makes the devitrified glass bend pipe be subjected to stress, so just becomes a complete composite-curve.
The structure of the composite-curve of made devitrified glass lining is, in this composite-curve, devitrified glass is curved to be the devitrified glass bend pipe from two lobes of two symmetries of longitudinal axis centerline direction rip cutting, steel bend pipe is the individual steel bend pipe from two lobes of two symmetries of longitudinal axis centerline direction rip cutting, the devitrified glass bend pipe difference lining of two lobes of two symmetries is within the steel bend pipe of two lobes of two symmetries, devitrified glass bend pipe and steel bend pipe adhesive bond, and by the composite-curve that becomes a complete devitrified glass lining after the bolted; Wherein, devitrified glass is made by the raw material of following ratio of weight and number:
Baiyuneboite selects mine tailing coal ash quartz sand Wingdale soda ash borax again
40-70 10-30 20-40 10-30 2-10 2-6。
Devitrified glass has good corrosion-proof wear performance, and far above the wear and corrosion behavior of cast stone, therefore devitrified glass bend pipe and the steel bend pipe complex group with compression moulding is fitted together, and is the effective ways that improve wear resistance and corrosion resistance.
In general, the devitrified glass bend pipe difference lining of two lobes of two symmetries is within the steel bend pipe of two lobes of two symmetries, it is the mode that adopts the internal diameter of the external diameter of devitrified glass bend pipe and steel bend pipe to be complementary, use adhesive bond between devitrified glass bend pipe and the steel bend pipe, be assembled into one with bolt half devitrified glass bend pipe and half steel bend pipe after with two pairs of bondings at last.
In the manufacture method of wear-resisting, corrosion-resistant devitrified glass of the present invention, the mould of described glass press is flat plate mold, make the devitrified glass flat board, this devitrified glass plate pack is contained on four inner side-walls at the end and steel groove in the steel groove, make the compound groove of devitrified glass lining.
The structure of the compound groove of made devitrified glass lining is that in this compound groove, this devitrified glass plate pack is contained on four inner side-walls of the interior end of steel groove and steel groove; Wherein, devitrified glass is made by the raw material of following ratio of weight and number:
Baiyuneboite selects mine tailing coal ash quartz sand Wingdale soda ash borax again
40-70 10-30 20-40 10-30 2-10 2-6。
Advantage of the present invention is:
The most significant performance of devitrified glass among the present invention is exactly its wear resistance, and solidity to corrosion and cast stone are suitable.Wherein folding strength is greater than 170MPa, and microhardness is not less than Hv1500, and wear resistance is 2 times of cast stone.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1:
The raw material of following portions by weight ratio is mixed: baiyuneboite selects mine tailing 45 parts by weight again, flyash 20 parts by weight, quartz sand 28 parts by weight, Wingdale 20 parts by weight, soda ash 4 parts by weight, borax 4 parts by weight.In making devitrified glass technology of the present invention, 1400 ℃ of temperature of fusion, 600 ℃ of glass press mold preheating temperatures, 750 ℃ of glass bend pipe mold clearing temperatures are sent into the glass foundry goods in 600 ℃ the kiln, be incubated 1 hour, make it soaking and eliminate stress, heat up with 3 ℃/min of heat-up rate then, be warmed up to 710 ℃ of nucleation temperatures, be incubated 2 hours, carry out coring and handle; Continue to heat up with 5 ℃/min of heat-up rate then, be warmed up to 830 ℃ of crystallization temperatures, be incubated 2 hours, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains the devitrified glass bend pipe, and the wall thickness of devitrified glass bend pipe is 12-20mm.
Two lobe devitrified glass bend pipes of symmetry are assemblied in the steel bend pipe, and the middle layer between the steel elbow is with adhesive bond such as cement glue or resins, and with two lobe steel bend pipe bolted of the symmetry after bonding, is assembled into one.
Embodiment 2:
The raw material of following portions by weight ratio is mixed: baiyuneboite selects mine tailing 45 parts by weight again, flyash 30 parts by weight, quartz sand 20 parts by weight, Wingdale 10 parts by weight, soda ash 8 parts by weight, borax 3 parts by weight.In making devitrified glass technology of the present invention, 1400 ℃ of temperature of fusion, 600 ℃ of glass press mold preheating temperatures, 750 ℃ of glass bend pipe mold clearing temperatures are sent into the glass bend pipe in 630 ℃ the kiln, be incubated 1 hour, make it soaking and eliminate stress, heat up with 2 ℃/min of heat-up rate then, be warmed up to 730 ℃ of nucleation temperatures, be incubated 2 hours, carry out coring and handle; Continue to heat up with 5 ℃/min of heat-up rate then, be warmed up to 830 ℃ of crystallization temperatures, be incubated 2 hours, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains the devitrified glass bend pipe, and the wall thickness of devitrified glass bend pipe is 12-20mm.
Two lobe devitrified glass bend pipes of symmetry are assemblied in the steel bend pipe, and the middle layer is with adhesive bond such as cement or resins, and with two lobe steel bend pipe bolted of the symmetry after bonding, is assembled into one.
Embodiment 3:
The raw material of following portions by weight ratio is mixed: baiyuneboite selects mine tailing 55 parts by weight again, flyash 20 parts by weight, quartz sand 20 parts by weight, Wingdale 17 parts by weight, soda ash 3 parts by weight, borax 4 parts by weight.In making devitrified glass technology of the present invention, 1400 ℃ of temperature of fusion, 600 ℃ of glass press mold preheating temperatures, 750 ℃ of glass bend pipe mold clearing temperatures are sent into the glass bend pipe in 600 ℃ the kiln, be incubated 1 hour, make it soaking and eliminate stress, heat up with 3 ℃/min of heat-up rate then, be warmed up to 730 ℃ of nucleation temperatures, be incubated 2 hours, carry out coring and handle; Continue to heat up with 3 ℃/min of heat-up rate then, be warmed up to 850 ℃ of crystallization temperatures, be incubated 2 hours, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains the devitrified glass bend pipe, and the wall thickness of devitrified glass bend pipe is 12-20mm.
Two lobe devitrified glass bend pipes of symmetry are assemblied in the steel bend pipe, and the middle layer is with adhesive bond such as cement or resins, and with two lobe steel bend pipe bolted of the symmetry after bonding, is assembled into one.
Embodiment 4:
The raw material of following portions by weight ratio is mixed: baiyuneboite selects mine tailing 50 parts by weight again, flyash 20 parts by weight, quartz sand 22 parts by weight, Wingdale 21 parts by weight, soda ash 3 parts by weight, borax 4 parts by weight.In making devitrified glass technology of the present invention, 1400 ℃ of temperature of fusion, 700 ℃ of glass press mold preheating temperatures, 750 ℃ of glass bend pipe mold clearing temperatures are sent into the glass bend pipe in 600 ℃ the kiln, be incubated 1 hour, make it soaking and eliminate stress, heat up less than 3 ℃/min with heat-up rate then, be warmed up to 730 ℃ of nucleation temperatures, be incubated 4 hours, carry out coring and handle; Continue to heat up with 5 ℃/min of heat-up rate then, be warmed up to 830 ℃ of crystallization temperatures, be incubated 2 hours, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains the devitrified glass bend pipe, and the wall thickness of devitrified glass bend pipe is 12-20mm.
Two lobe devitrified glass bend pipes of symmetry are assemblied in the steel bend pipe, and the middle layer is with adhesive bond such as cement or resins, and with two lobe steel bend pipe bolted of the symmetry after bonding, is assembled into one.
Embodiment 5:
The raw material of following portions by weight ratio is mixed: baiyuneboite selects mine tailing 50 parts by weight again, flyash 20 parts by weight, quartz sand 24 parts by weight, Wingdale 22 parts by weight, soda ash 3 parts by weight, borax 4 parts by weight.In making devitrified glass technology of the present invention, 1350 ℃ of temperature of fusion, 750 ℃ of glass press mold preheating temperatures, 750 ℃ of glass bend pipe mold clearing temperatures are sent into the glass foundry goods in 600 ℃ the kiln, be incubated 1 hour, make it soaking and eliminate stress, heat up with 4 ℃/min of heat-up rate then, be warmed up to 710 ℃ of nucleation temperatures, be incubated 2 hours, carry out coring and handle; Continue to heat up with 5 ℃/min of heat-up rate then, be warmed up to 850 ℃ of crystallization temperatures, be incubated 4 hours, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains the devitrified glass bend pipe, and the wall thickness of devitrified glass bend pipe is 12-20mm.
Two lobe devitrified glass bend pipes of symmetry are assemblied in the steel bend pipe, and the middle layer between the steel elbow is with adhesive bond such as cement glue or resins, and with two lobe steel bend pipe bolted of the symmetry after bonding, is assembled into one.
Embodiment 6:
The raw material of following portions by weight ratio is mixed: baiyuneboite selects mine tailing 50 parts by weight again, flyash 20 parts by weight, quartz sand 31 parts by weight, Wingdale 22 parts by weight, soda ash 3 parts by weight, borax 4 parts by weight.In making devitrified glass technology of the present invention, 1350 ℃ of temperature of fusion, 600 ℃ of glass press mold preheating temperatures, 780 ℃ of glass bend pipe mold clearing temperatures are sent into the glass foundry goods in 600 ℃ the kiln, be incubated 2 hours, make it soaking and eliminate stress, heat up with 2 ℃/min of heat-up rate then, be warmed up to 730 ℃ of nucleation temperatures, be incubated 4 hours, carry out coring and handle; Continue to heat up with 3 ℃/min of heat-up rate then, be warmed up to 850 ℃ of crystallization temperatures, be incubated 2 hours, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains the devitrified glass bend pipe, and the wall thickness of devitrified glass bend pipe is 12-20mm.
Two lobe devitrified glass bend pipes of symmetry are assemblied in the steel bend pipe, and the middle layer between the steel elbow is with adhesive bond such as cement glue or resins, and with two lobe steel bend pipe bolted of the symmetry after bonding, is assembled into one.
More than 6 prepared devitrified glasses of embodiment, all the test, the folding strength of devitrified glass is all greater than 170MPa, microhardness all is not less than Hv1500, wear resistance all is 2 times of cast stone.Therefore, has the advantage wear-resisting, corrosion-resistant, that cost is low with devitrified glass of the present invention as composite-curve or the compound groove of liner.
Claims (4)
1. the manufacture method of wear-resisting, a corrosion-resistant devitrified glass is characterized in that this method may further comprise the steps:
(1) raw material with the following portions by weight ratio mixes;
Baiyuneboite selects mine tailing coal ash quartz sand Wingdale soda ash borax again
40－70 10－30 20－40 10－30 2－10 2－6，
Wherein, baiyuneboite selects the content of rare earth in the mine tailing to be less than 2.0 weight % again, and fluorine content is more than or equal to 5 weight %;
(2) above-mentioned raw materials is mixed the back and under 1300-1500 ℃ of condition, melt, obtain melten glass liquid;
(3) with the mould and die preheating of glass press to 300-800 ℃, pour into melten glass liquid then, when treating that the glass foundry goods cools to 600-900 ℃, die sinking is taken out the glass foundry goods and is put into the crystallization furnace crystallization, this crystallization process is, at first the glass foundry goods is sent in 550-650 ℃ the kiln, be incubated 0.5-5 hour, make it soaking and eliminate stress, be that 2 ℃/min heats up with heat-up rate less than 3 ℃/min or with heat-up rate then, be warmed up to 700-730 ℃, be incubated 2-4 hour, carry out coring and handle; Continue to heat up less than 5 ℃/min with heat-up rate then, be warmed up to 810-850 ℃, be incubated 2-4 hour, carry out crystallization and handle, crystallization is cooled to come out of the stove below 100 ℃ after handling, and namely obtains devitrified glass.
2. the manufacture method of wear-resisting, corrosion-resistant devitrified glass according to claim 1, it is characterized in that the mould of described glass press is bend pipe mould, make the devitrified glass bend pipe, with this devitrified glass bend pipe and the compound assembling of steel bend pipe, make the composite-curve of devitrified glass lining.
3. the manufacture method of wear-resisting, corrosion-resistant devitrified glass according to claim 1, it is characterized in that, the mould of described glass press is the bend pipe mould from two lobes of two symmetries of longitudinal axis centerline direction rip cutting, made devitrified glass bend pipe also is the devitrified glass bend pipe from two lobes of two symmetries of longitudinal axis centerline direction rip cutting, and the wall thickness of devitrified glass bend pipe is 8-25mm; Described steel bend pipe also is the steel bend pipe from two lobes of two symmetries of longitudinal axis centerline direction rip cutting; Its complex group process of assembling is: the devitrified glass bend pipe difference lining of two lobes of two symmetries is within the steel bend pipe of two lobes of two symmetries, devitrified glass bend pipe and steel bend pipe adhesive bond, and by the composite-curve that becomes a complete devitrified glass lining after the bolted.
4. the manufacture method of wear-resisting, corrosion-resistant devitrified glass according to claim 1, it is characterized in that, the mould of described glass press is flat plate mold, make the devitrified glass flat board, this devitrified glass plate pack is contained on four inner side-walls at the end and steel groove in the steel groove, makes the compound groove of devitrified glass lining.
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| CN 201110145563 CN102295416B (en) | 2011-06-03 | 2011-06-03 | Wear and corrosion resistant microcrystalline glass and manufacture method thereof |
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|---|---|---|---|
| CN 201110145563 CN102295416B (en) | 2011-06-03 | 2011-06-03 | Wear and corrosion resistant microcrystalline glass and manufacture method thereof |
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| CN102295416B true CN102295416B (en) | 2013-08-07 |
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| CN102826758B (en) * | 2012-08-29 | 2015-12-09 | 内蒙古科技大学 | Industry wear resistant corrosion resistant crystallizing glass sheet material and preparation method |
| CN103224328B (en) * | 2013-05-16 | 2016-04-27 | 承德华富玻璃技术工程有限公司 | A kind of devitrified glass and preparation method thereof |
| CN103663974A (en) * | 2013-12-06 | 2014-03-26 | 辽宁红山玉科技有限公司 | Method used for preparing microcrystalline glass via rolling process |
| CN105967526A (en) * | 2016-05-06 | 2016-09-28 | 东莞市银特丰光学玻璃科技有限公司 | Formula of glass-ceramic plate and preparation technology |
| CN106430981A (en) * | 2016-08-31 | 2017-02-22 | 望江宇花玻璃有限公司 | Cordierite-based glass ceramics containing modified fly ash and preparation process thereof |
| CN108395103B (en) * | 2018-04-03 | 2021-06-22 | 内蒙古科技大学 | Cubic-crystallization alpha cordierite glass ceramic prepared from bayan obo tailings and fly ash and preparation method thereof |
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| CN1289862A (en) * | 2000-10-27 | 2001-04-04 | 北京盛康宁科技开发有限公司 | Process for prepared anticorrosion and antiwear composite steel pipe with liner of pyroceram |
| CN101891389A (en) * | 2010-07-22 | 2010-11-24 | 西南科技大学 | Chrysotile tailing microcrystal glass and preparation method thereof |
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