CN101429047B - Process for producing large-scale sheet - Google Patents
Process for producing large-scale sheet Download PDFInfo
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- CN101429047B CN101429047B CN2008102396402A CN200810239640A CN101429047B CN 101429047 B CN101429047 B CN 101429047B CN 2008102396402 A CN2008102396402 A CN 2008102396402A CN 200810239640 A CN200810239640 A CN 200810239640A CN 101429047 B CN101429047 B CN 101429047B
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Abstract
The invention relates to a method for preparing a large-dimension sheet, which belongs to a method for producing kiln furniture. The method is characterized by comprising the following steps: a blank is evenly distributed according to the required thickness, and is subjected to mechanical pressing, protecting, drying, setting and high-temperature firing, wherein the mechanical pressing tonnage is more than 800 tons, and setting adopts modes of clamping and drawing. The method adopts large-tonnage mechanical pressing to further improve the evenness and the compactness of a sheet body, guarantees the flatness of the large-dimension sheet, and makes the sheet surface difficult to deform and have good flatness due to adoption of clamping and drawing modes for setting.
Description
Technical field
The present invention relates to the production method of kiln furnitures, particularly relate to the preparation method of large-scale sheet.
Background technology
The application of large-scale sheet in kiln furnitures is wider, can be used for supporting domestic ceramics, cleaners and polishes etc., large-scale sheet are with respect to the small size thin plate, and its piece is few, it is also less relatively to be used to the crossbeam, the pillar that support below, labour intensity when therefore the workman works is little, and the large-scale sheet overall weight is light, and material consumption is few during use, power consumption is few, and space utility ratio height.Large-scale sheet refers generally to area greater than 700mm * 700mm, and thickness is less than 25mm, but because its size is big, and thin thickness, in the manufacturing process that adopts common process, is easy to generate distortion especially, causes the plate face crooked and can't use.Smooth plate face could guarantee the flatness after its support is fired, and could adapt to the flatness requirement of expensive goods, therefore is necessary its manufacture craft is improved.
Summary of the invention
At the defective in the above-mentioned field, the invention provides a kind of preparation method of large-scale sheet, can guarantee that this large-scale sheet flatness is very good.
The preparation method of large-scale sheet is characterized in that comprising the steps: that blank is even by the desired thickness cloth, protection drying behind the mechanical pressing, and setting, high-temperature firing, described machine press tonnage greater than 800 tons, and described setting adopts the upright coding mode of clipping.
Described protection drying is in closed chamber, and humidity is 70-90%, and temperature 50-80 ℃ was descended dry 16-24 hour, was 40-60% in humidity again, and temperature is 110 ℃-150 ℃ and descended dry 24-36 hour.
Described protection is dry adopts dry holder to support, and described dry holder is fence type closure plate face, and described plate face is greater than billet surface.
Described fence spacing is 80-120mm.
The thickness of one pile of base substrate was 100-200mm when described clipping was found sign indicating number.
When founding sign indicating number, described clipping detects its flatness with plummet and horizon rule.
Base substrate behind the described mechanical pressing need detect the uniformity of its packing.
Large-scale sheet will overcome yielding problem in manufacturing process, just should guarantee the uniformity and the packing of base substrate, to guarantee the intensity of this thin plate simultaneously, the present invention adopts bigger machine to press tonnage, the base substrate packing and the uniformity of mechanical pressing are all increased, setting adopts the mode of the upright sign indicating number of clipping, has avoided the distortion of base substrate when firing.
Because base substrate before advancing klining system, must as protecting drying condition improper, easily cause this large-scale sheet to deform, ftracture through the overprotection drying.Too fast as drying, dehydration is too fast, easily makes base substrate crackle occur, and is slow excessively as drying, influences operating efficiency, and the blank moisture is big when firing, and refractory slab is easy to crack in the sintering procedure.If do not find the bending of plate face when protection is dry, owing to the flexibility difference of each thin plate, bending position difference, clipping are easy to cause thin plate bending place cracking when founding sign indicating number again, therefore protect the condition of drying extremely important.
Protection is that base substrate is placed dry holder upper support when dry, and its plate face should be greater than base substrate, and flatness is good, otherwise easily causes the peripheral out-of-flatness of base substrate, and dry holder easily utilizes moisture loss, the preferred 80-120mm of interval of grid strip for fence type closure plate face.Too wide, base substrate easily caves at the fence gap location, and spacing is too little, is unfavorable for moisture loss.
The upright sign indicating number of clipping is with fitting strip one pile of large-scale sheet to be clamped, and puts into kiln in the mode of upright sign indicating number and fires, and has prevented that large-scale sheet deforms in sintering procedure.The preferred 100-200mm of the thickness that large-scale sheet is one pile, too thin, the base substrate number is few, and operating efficiency is low, and the distortion probability is big, too thick, easily causes to give birth to and burns.When founding sign indicating number, clipping detects its flatness with plummet and horizon rule.Base substrate after the moulding need detect the uniformity of its packing, the place that packing is bad, and just the weak link of plate face is easy to crack in subsequent drying, sintering procedure, distortion.All these detection means all are to prevent that underproof product from flowing into next program, in order to avoid produce the wasting of resources.
The present invention adopts the large-tonnage mechanical pressing that the uniformity of large-scale sheet base substrate and packing are further improved, and setting is the mode that adopts the upright sign indicating number of clipping, has guaranteed the flatness of large-scale sheet, makes its plate face be difficult for deforming, and flatness is good.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment.
Material among the following embodiment is dichroite-mullite.
Embodiment 1
1, get the raw materials ready: press the large-scale sheet size and be 700mm * 700mm, thickness is the 12mm preparation about 150kg of blank (pugs of 10 base substrates), water content about 5%.
2, use the distributing device cloth, scrape smoothly with distributing device, cloth once wants scraper to guarantee more than 5 times that cloth is even at least.
3, mechanical pressing obtains base substrate, and machine is pressed 800 tons of tonnages.
4, detect the uniformity of base substrate packing, guarantee the subsequent product quality.
5, protection is dry, and base substrate is lain in the dry holder, and the fence stripe pitch of dry holder is 100mm, and with the hothouse sealing, regulating humidity is 80%, and temperature is 50 ℃, and dry 18 hours of protection is 50% in humidity again, temperature be 110 ℃ dry 24 hours down.
6, setting with the dry base substrate of crossing of batten clipping, presss from both sides into one pile with 10 base substrates, and upright sign indicating number detects with plummet and horizon rule, guarantees the perpendicularity of upright sign indicating number.
7, high-temperature firing, temperature is incubated 6 hours down for 1400 ℃ and burns till.
Embodiment 2
1, get the raw materials ready: press the large-scale sheet size and be 800mm * 1000mm, thickness is the 23mm preparation about 370kg of blank (pugs of 8 base substrates), water content about 6%.
2, use the distributing device cloth, scrape smoothly with distributing device, cloth once wants scraper to guarantee more than 5 times that cloth is even at least.
3, mechanical pressing obtains base substrate, and machine is pressed 1200 tons of tonnages.
4, detect the uniformity of base substrate packing, guarantee the subsequent product quality.
5, protection is dry, and base substrate is lain in the dry holder, and the fence stripe pitch of dry holder is 120mm, and with the hothouse sealing, regulating humidity is 70%, and temperature is 80 ℃, and dry 16 hours of protection is 40% in humidity again, temperature be 120 ℃ dry 36 hours down.
6, setting with the dry base substrate of crossing of batten clipping, presss from both sides into one pile with 8 base substrates, and upright sign indicating number detects with plummet and horizon rule, guarantees the perpendicularity of upright sign indicating number.
7, high-temperature firing, temperature is incubated 10 hours down for 1380 ℃ and burns till.
Embodiment 3
1, get the raw materials ready: press large-scale sheet size and be 1000mm * 1000mm, thickness is the 25mm preparation about 480kg of blank (pugs of 8 base substrates), and water content is about 7%,
2, use the distributing device cloth,, to scrape smoothly with distributing device, cloth once wants scraper to guarantee more than 5 times that cloth is even at least.
3, mechanical pressing obtains base substrate, and machine is pressed 1500 tons of tonnages.
4, detect the uniformity of base substrate packing, guarantee the subsequent product quality.
5, protection is dry, and base substrate is lain in the dry holder, and the fence stripe pitch of dry holder is 80mm, and with the hothouse sealing, regulating humidity is 90%, and temperature is 70 ℃, and dry 24 hours of protection is 60% in humidity again, temperature be 150 ℃ dry 36 hours down.
6, setting with the dry base substrate of crossing of batten clipping, presss from both sides into one pile with 8 base substrates, and upright sign indicating number detects with plummet and horizon rule, guarantees the perpendicularity of upright sign indicating number.
7, high-temperature firing, temperature is incubated 12 hours down for 1350 ℃ and burns till.
Claims (6)
1. the preparation method of large-scale sheet; it is characterized in that comprising the steps: that blank is even by the desired thickness cloth, protection drying behind the mechanical pressing, setting; high-temperature firing; described machine presses tonnage greater than 800 tons, and described setting adopts the upright coding mode of clipping, and described protection drying is in closed chamber; humidity is 70-90%; temperature 50-80 ℃ was descended dry 16-24 hour, was 40-60% in humidity again, and temperature is 110 ℃-150 ℃ and descended dry 24-36 hour.
2. the preparation method of large-scale sheet according to claim 1, described protection is dry adopts dry holder to support, and described dry holder is fence type closure plate face, and described plate face is greater than billet surface.
3. the preparation method of large-scale sheet according to claim 2, described fence spacing is 80-120mm.
4. the preparation method of large-scale sheet according to claim 1, the thickness of one pile of base substrate is 100-200mm during the upright sign indicating number of described clipping.
5. the preparation method of large-scale sheet according to claim 4 detects its flatness with plummet and horizon rule when described clipping is found sign indicating number.
6. the preparation method of large-scale sheet according to claim 1, the base substrate behind the described mechanical pressing need detect the uniformity of its packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102396402A CN101429047B (en) | 2008-12-12 | 2008-12-12 | Process for producing large-scale sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102396402A CN101429047B (en) | 2008-12-12 | 2008-12-12 | Process for producing large-scale sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101429047A CN101429047A (en) | 2009-05-13 |
| CN101429047B true CN101429047B (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102396402A Active CN101429047B (en) | 2008-12-12 | 2008-12-12 | Process for producing large-scale sheet |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147825A (en) * | 2017-12-14 | 2018-06-12 | 上海卡贝尼精密陶瓷有限公司 | A kind of sintering method of large scale advanced ceramics component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1132357A2 (en) * | 2000-03-10 | 2001-09-12 | Cerabo Japan Ltd. | Method of manufacturing large-scale ceramics board |
| CN1418770A (en) * | 2002-12-16 | 2003-05-21 | 徐建 | Method and equipment for forming large ceramic thin plates |
| US7011726B1 (en) * | 2004-09-27 | 2006-03-14 | Intel Corporation | Method of fabricating thin dielectric film and thin film capacitor including the dielectric film |
-
2008
- 2008-12-12 CN CN2008102396402A patent/CN101429047B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1132357A2 (en) * | 2000-03-10 | 2001-09-12 | Cerabo Japan Ltd. | Method of manufacturing large-scale ceramics board |
| CN1418770A (en) * | 2002-12-16 | 2003-05-21 | 徐建 | Method and equipment for forming large ceramic thin plates |
| US7011726B1 (en) * | 2004-09-27 | 2006-03-14 | Intel Corporation | Method of fabricating thin dielectric film and thin film capacitor including the dielectric film |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003－342078A 2003.12.03 |
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| CN101429047A (en) | 2009-05-13 |
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Effective date of registration: 20200115 Address after: 301800 No. 39 Middle Road, energy saving and environmental protection industrial zone, Baodi District, Tianjin Patentee after: Tianjin creation heat conduction material Co., Ltd. Address before: 101109 Beijing horse town Huoxian village of Tongzhou District Patentee before: Beijing Trend Industrial Ceramics Co., Ltd. |