CN105732068A - Preparation method of detection window for smelting furnace - Google Patents

Preparation method of detection window for smelting furnace Download PDF

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Publication number
CN105732068A
CN105732068A CN201610060124.8A CN201610060124A CN105732068A CN 105732068 A CN105732068 A CN 105732068A CN 201610060124 A CN201610060124 A CN 201610060124A CN 105732068 A CN105732068 A CN 105732068A
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China
Prior art keywords
preparation
smelting furnace
detecting window
quartz fibre
precast body
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CN201610060124.8A
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Chinese (zh)
Inventor
李伶
韦其红
王洪升
王重海
邵长涛
程洪浩
王营营
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Shandong Industrial Ceramics Research and Design Institute Co Ltd
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Shandong Industrial Ceramics Research and Design Institute Co Ltd
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Priority to CN201610060124.8A priority Critical patent/CN105732068A/en
Publication of CN105732068A publication Critical patent/CN105732068A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C04B35/82—Asbestos; Glass; Fused silica
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/593—Stiff materials, e.g. cane or slat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/616—Liquid infiltration of green bodies or pre-forms

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Glass Compositions (AREA)

Abstract

The invention belongs to the technical field of ceramic matrix composite materials, and particularly relates to a preparation method of a detection window for a smelting furnace. A quartz fiber preform is prepared by a coating knitting technology; the quartz fiber preform is subjected to surface treatment by SiO2-Al2O3-ZrO2 composite sol through a liquid impregnation method; and a quartz fiber-enhanced ceramic matrix composite material is prepared by SiO2-Al2O3-ZrO2 composite slurry through a liquid-phase cyclic immersion method and a thermal treatment method. One-time mass processing is carried out on the quartz fiber-enhanced ceramic matrix composite material through grinding and precision machining processes to obtain the detection window; and the detection window is subjected to pickling and washing treatment and damp-proof treatment. The coating knitting technology is adopted in the knitting process of the preform; the fabric interlayer property, the anti-ablative property and the uniformity are good; the automatic degree is high; the preparation cycle is short; and the cost is low.

Description

The preparation method of smelting furnace detecting window
Technical field
The invention belongs to technology field of ceramic matrix composite material, be specifically related to the preparation method of a kind of smelting furnace detecting window.
Background technology
In high melt industries such as the metallurgy of China, oil, chemical industry, coal, light industry, building materials, in order to ensure safety and and Time understand the material situation in pyroreaction still, reacting furnace, need liquid level, material position etc. are observed or monitored in real time, so And generally these equipment are airtight or hot environment, artificial or common equipment is extremely difficult to purpose, at this moment needs one High temperature resistant radar type detection level-sensing device.
High temperature resistant radar type detection level-sensing device device window material used above needs the high temperature of resistance to more than 1200 DEG C, and makes For the normal work of protection radar detection during with, window material one side uses the gases such as nitrogen to cool down, and another side needs Bearing the high temperature of more than 1200 DEG C, therefore there is bigger temperature difference in window material both sides, and fragile material can not meet requirement, Need the material using good toughness to prepare, there is good electromagnetic wave permeable energy, anti-yaw damper performance simultaneously.
On domestic market detect level-sensing device window material have many types, including engineering plastics, quartz glass, quartz-ceramics, Quartz glass cloth strengthens resin composite materials and high silica fiber strengthens phenolic resin composite etc., and these materials all have relatively Good through Electromagnetic performance.But engineering plastics heatproof is relatively low, it is impossible to meet the detection under high temperature and use requirement；Quartz glass and Quartz-ceramics heatproof is high, but poor impact resistance, in use there will be situations such as rupturing, its service life generally only has 1-2 month；It is bad that quartz glass cloth strengthens resin composite materials heat resistanceheat resistant stability, in use easily occurs between layers The phenomenon peeled off；It is bad that high silica fiber strengthens phenolic resin composite anti-yaw damper performance, foaming phenomena in use occurs. Therefore the material that domestic market is conventional can not meet and stably uses radar type level-sensing device window material under the application conditions of harshness Requirement.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of smelting furnace detecting window, prepared product is the most high temperature resistant, good toughness, Wave transparent performance is good, and preparation cost is low, is suitable for the use environment of smelting furnace detecting window.
The preparation method of smelting furnace detecting window of the present invention, step is as follows:
(1) use and cover mould weaving and prepare quartz fibre precast body；
(2) SiO is used2-Al2O3-ZrO2Complex sol carries out surface process by liquid-phase impregnation process to quartz fibre precast body；
(3) SiO is used2-Al2O3Compound slip is prepared quartz fibre by liquid phase circulation infusion process and heat treatment and is strengthened ceramic base again Condensation material；
(4) use grinding precise machining process that quartz fibre is strengthened ceramic matric composite and carry out disposable mass processing, To detecting window；
(5) by pickling, washing process and damp-proof treatment, to obtain final product.
The mould weaving that covers described in step (1) is grown up by structure optimization in tradition 2.5D woven base The technique kind preparing interlayer angle lock construction, it retains 2.5D layer non-destructive feature of interlayer structure in residual thickness after processing, with Time have simple in construction, interlayer density is adjustable, yarn good fluidity, be prone to looming weaving and can the quick advantage such as overlay film, and system Standby precast body uniformity, concordance are good, and Coating combination performance is good, and device therefor automaticity is high, and manufacturing cycle is short, energy Meet the needs produced in enormous quantities.
Quartz fibre precast body described in step (1) is that tabular weaves quartz fibre precast body, and disposable weave dimension is big, Volume fraction is 40-55%.
In liquid phase circulation infusion process described in step (3), cycle-index is 2-3 time.
Heat treatment temperature described in step (3) is 700-900 DEG C.
SiO described in step (3)2-Al2O3The solid content of compound slip is 40-60%.
Disposable mass processing described in step (4) is the processing disposably simultaneously carrying out 10-20 part detecting window product.
Surface processes and quartz fibre is served protective effect, improves the temperature tolerance of quartz fibre, makes making for a long time of quartz fibre 1200 DEG C are brought up to from 1000 DEG C by temperature.
The present invention uses space flight, aviation field guided missile quartz fibre to strengthen quartz composite, and by military project, move technology to lower end products, passes through The technological improvement of series, is prepared for low cost smelting furnace detecting window.
The service life of this detecting window reaches more than 2 years.
The present invention compared with prior art, has the advantages that
First, have employed during the braiding of precast body and cover mould weaving, fabric interlayer performance, anti-yaw damper performance and all Even property is good, and automaticity is high, and manufacturing cycle is short, low cost.
Second, during liquid phase composite molding, use SiO2-Al2O3-ZrO2Complex sol has carried out surface to quartz fibre Reason, not only increases quartz fibre temperature tolerance, and improves quartz fibre and SiO2-Al2O3The interface compatibility of matrix.
3rd, the technique that have employed the processing of disposable mass in the course of processing, relatively one pieces processing substantially increases working (machining) efficiency, Reduce cost.
The smelting furnace detecting window that the present invention prepares, by the test run in smelting furnace, the normally work time of 2 years, still So can be properly functioning.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
Using quartz fibre to prepare quartz fibre precast body, weaving manner is for covering mould weaving, and the size of precast body is 600mm (wide) × 20mm (thick) × 1000mm (length), volume fraction is 45%；
Organic wetting agent on quartz fibre precast body surface is removed；
Use SiO2-Al2O3-ZrO2Complex sol carries out surface process, thick coating by liquid-phase impregnation process to quartz fibre precast body Degree is 20 μm；
The SiO of 40% is used after drying2-Al2O3Compound slip impregnates, then heat treatment at 700 DEG C；Then use solid Content 30%SiO2-Al2O3Compound slurry circulation impregnates 2 times, is thermally treated resulting in quartz fibre enhancing ceramic base and is combined at 750 DEG C Material, the dipping process auxiliary means such as vacuum, pressure；
Using numerically control grinder to carry out Precision Machining, the first cutter bite 1.5mm in precision machining processes, feed speed is 15mm/min, the second cutter bite 0.2mm, feed speed is 9mm/min, and the 3rd cutter determines penetration of a cutting tool according to actual measurement data Amount size, feed speed is 9mm/min, and the quantity of disposable processing detecting window is 10；
By the detecting window pickling 24h of completion of processing, then wash, until pH value is 6-7, then dried at detecting window Moisture barrier coatings is prepared on surface；
Through detecting window test run in smelting furnace, service life is 30 months.
Embodiment 2
Using quartz fibre to prepare quartz fibre precast body, weaving manner is for covering mould weaving, and the size of precast body is 800mm (wide) × 30mm (thick) × 1300mm (length), volume fraction is 55%；
Organic wetting agent on quartz fibre precast body surface is removed；
Use SiO2-Al2O3-ZrO2Complex sol carries out surface process, thick coating by liquid-phase impregnation process to quartz fibre precast body Degree is 30 μm；
The SiO of 50% is used after drying2-Al2O3Compound slip impregnates, then heat treatment at 750 DEG C；Then use solid Content 30%SiO2-Al2O3Compound slurry circulation impregnates 3 times, is thermally treated resulting in quartz fibre enhancing ceramic base and is combined at 800 DEG C Material, the dipping process auxiliary means such as vacuum, pressure；
Using numerically control grinder to carry out Precision Machining, the first cutter bite 1.5mm in precision machining processes, feed speed is 13mm/min, the second cutter bite 0.15mm, feed speed is 8mm/min, and the 3rd cutter determines according to actual measurement data to be eaten Cutter amount size, feed speed is 8.9mm/min, and the quantity of disposable processing detecting window is 25；
By the detecting window pickling 24h of completion of processing, then wash, until pH value is 6-7, then dried at detecting window Moisture barrier coatings is prepared on surface；
Through detecting window test run in smelting furnace, service life is 28 months.
Embodiment 3
Using quartz fibre to prepare quartz fibre precast body, weaving manner is for covering mould weaving, and the size of precast body is 800mm (wide) × 30mm (thick) × 1500mm (length), volume fraction is 48%；
Organic wetting agent on quartz fibre precast body surface is removed；
Use SiO2-Al2O3-ZrO2Complex sol carries out surface process, thick coating by liquid-phase impregnation process to quartz fibre precast body Degree is 25 μm；
The SiO of 60% is used after drying2-Al2O3Compound slip impregnates, then heat treatment at 900 DEG C；Then use solid Content 30%SiO2-Al2O3Compound slurry circulation impregnates 2 times, is thermally treated resulting in quartz fibre enhancing ceramic base and is combined at 800 DEG C Material, the dipping process auxiliary means such as vacuum, pressure；
Using numerically control grinder to carry out Precision Machining, feed speed is 13.5mm/min, the second cutter bite 0.15mm, feeding speed Degree is 8.5mm/min, and the 3rd cutter determines bite size according to actual measurement data, and feed speed is 8.6mm/min, once Property processing detecting window quantity be 30；
By the detecting window pickling 24h of completion of processing, then wash, until pH value is 6-7, then dried at detecting window Moisture barrier coatings is prepared on surface；
Through detecting window test run in smelting furnace, service life is 30 months.

Claims (7)

1. the preparation method of a smelting furnace detecting window, it is characterised in that step is as follows:
(1) use and cover mould weaving and prepare quartz fibre precast body；
(2) SiO is used2-Al2O3-ZrO2Complex sol carries out surface process by liquid-phase impregnation process to quartz fibre precast body；
(3) SiO is used2-Al2O3Compound slip is prepared quartz fibre by liquid phase circulation infusion process and heat treatment and is strengthened ceramic base again Condensation material；
(4) use grinding precise machining process that quartz fibre is strengthened ceramic matric composite and carry out disposable mass processing, To detecting window；
(5) by pickling, washing process and damp-proof treatment, to obtain final product.
The preparation method of smelting furnace detecting window the most according to claim 1, it is characterised in that described in step (1) Covering mould weaving is a kind of technique preparing interlayer angle lock construction, and it retains 2.5D layer interlayer structure in residual thickness after processing Do not destroy.
The preparation method of smelting furnace detecting window the most according to claim 1, it is characterised in that described in step (1) Quartz fibre precast body is that tabular weaves quartz fibre precast body, and volume fraction is 40-55%.
The preparation method of smelting furnace detecting window the most according to claim 1, it is characterised in that described in step (3) In liquid phase circulation infusion process, cycle-index is 2-3 time.
The preparation method of smelting furnace detecting window the most according to claim 1, it is characterised in that described in step (3) Heat treatment temperature is 700-900 DEG C.
The preparation method of smelting furnace detecting window the most according to claim 1, it is characterised in that described in step (3) SiO2-Al2O3The solid content of compound slip is 40-60%.
The preparation method of smelting furnace detecting window the most according to claim 1, it is characterised in that described in step (4) Disposable mass processing is the processing disposably simultaneously carrying out 10-20 part detecting window product.
CN201610060124.8A 2016-01-29 2016-01-29 Preparation method of detection window for smelting furnace Pending CN105732068A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629084A (en) * 2018-11-13 2019-04-16 湖北三江航天江北机械工程有限公司 2.5D for antenna window shallowly hands over preparation method of the curved addition to fibrage body

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482994A (en) * 2013-10-17 2014-01-01 山东工业陶瓷研究设计院有限公司 Preparation method of carbon fiber-reinforced quartz ceramic-based composite material
CN103588469A (en) * 2013-11-05 2014-02-19 中国航空工业集团公司北京航空材料研究院 Method for preparing ceramic-based high temperature abradable seal coating layer based on sol-gel
CN103588495A (en) * 2013-11-14 2014-02-19 山东工业陶瓷研究设计院有限公司 Preparation method of low-heat-conduction processable ceramic matrix composite material
CN103601479A (en) * 2013-11-14 2014-02-26 山东工业陶瓷研究设计院有限公司 Preparation method for high-temperature-resistant ultra-thin antenna window

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482994A (en) * 2013-10-17 2014-01-01 山东工业陶瓷研究设计院有限公司 Preparation method of carbon fiber-reinforced quartz ceramic-based composite material
CN103588469A (en) * 2013-11-05 2014-02-19 中国航空工业集团公司北京航空材料研究院 Method for preparing ceramic-based high temperature abradable seal coating layer based on sol-gel
CN103588495A (en) * 2013-11-14 2014-02-19 山东工业陶瓷研究设计院有限公司 Preparation method of low-heat-conduction processable ceramic matrix composite material
CN103601479A (en) * 2013-11-14 2014-02-26 山东工业陶瓷研究设计院有限公司 Preparation method for high-temperature-resistant ultra-thin antenna window

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629084A (en) * 2018-11-13 2019-04-16 湖北三江航天江北机械工程有限公司 2.5D for antenna window shallowly hands over preparation method of the curved addition to fibrage body

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