CN111170759B - 一种无模裸烧发泡陶瓷的制造方法 - Google Patents
一种无模裸烧发泡陶瓷的制造方法 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000010304 firing Methods 0.000 title claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000005187 foaming Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010451 perlite Substances 0.000 claims description 5
- 235000019362 perlite Nutrition 0.000 claims description 5
- 239000011029 spinel Substances 0.000 claims description 5
- 229910052596 spinel Inorganic materials 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 229910052634 enstatite Inorganic materials 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- BBCCCLINBSELLX-UHFFFAOYSA-N magnesium;dihydroxy(oxo)silane Chemical compound [Mg+2].O[Si](O)=O BBCCCLINBSELLX-UHFFFAOYSA-N 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- 239000012744 reinforcing agent Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
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- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005482 strain hardening Methods 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229910021418 black silicon Inorganic materials 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical group [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/002—Producing shaped prefabricated articles from the material assembled from preformed elements
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- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
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- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
- B28B17/026—Conditioning ceramic materials
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- 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
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Abstract
一种无模裸烧发泡陶瓷的制造方法,包括如下步骤:首先制备薄片,然后将至少两个薄片进行叠加得到坯体,最后将得到的坯体烧制得到发泡陶瓷。现有技术中得到厚度较厚的发泡陶瓷一般是通过粘结成品发泡陶瓷得到,之所以采用该种方式是因为在较厚的发泡陶瓷的烧制过程中会由于受热不均而导致受热效果不佳,从而发泡效果差,本申请利用预先得到成型坯体的做法,实现了厚度的累加。
Description
技术领域
本申请涉及一种无模裸烧发泡陶瓷的制造方法。
背景技术
发泡陶瓷一般以抛光瓷渣、花岗岩锯泥、铁矿尾矿和锂尾矿等固体废物作为主要原料,引入适量无机物,采用先进的生产工艺经高温发泡焙烧而成。发泡陶瓷因其封闭孔的结构特点,常温状态下具有保温隔热、隔音降噪、防水防潮的功能。
现有的发泡陶瓷生产一般在以堇青石-莫来石挡板构成的模框内填充发泡陶瓷造粒粉,通过耐火纤维纸将粉料与挡板隔开,窑具带着粉料一拼进入窑炉内进行烧制,使用的窑具在烧成过程中吸收大量的热量,导致发泡陶瓷生产的能耗较大。
发明内容
为了解决上述问题,本申请提出了一种无模裸烧发泡陶瓷的制造方法,包括如下步骤:首先将发泡陶瓷造粒粉压制成薄片,然后将至少两个薄片进行叠加得到坯体,最后将得到的坯体烧制得到发泡陶瓷。现有技术中得到厚度较厚的发泡陶瓷一般是通过在耐火材料组成的模框内布置一定厚度的粉料而得到,之所以采用该种方法是因为采用模框布粉的方式由于模框的存在使发泡陶瓷散热效果不佳,从而影响退火速度,本申请通过对于薄片的制作,然后再利用薄片得到坯体的做法,利用高温时相同成分的薄片相互反应并熔合成一体,客观上克服了接触面结合能力差的后果,在厚度方向上并不存在薄弱部位。
优选的,所述薄片按照如下步骤进行:
S1秤料:按照质量份数分别称量发泡陶瓷的原料;
S2发泡陶瓷原料球磨:采用湿法球磨加工,泥浆控制工艺指标为:细度2.0±0.2%,流速39±15”,比重1.50±0.05,水分38±2%;泥浆合格后依次过20目,80目,100目三道筛,并陈腐均化不小于48小时;
S3喷雾干燥:发泡陶瓷原料泥浆经喷雾干燥制备成含水率在10±0.5%范围内,粒度在20目-80目间的粉料;合格粉料储存于密闭料仓内陈腐均化不小于48小时;
S4干压成型:发泡陶瓷粉料,经皮带输送机,斗式提升机输送至压机,采用干压成型的方法压制成10-20mm的薄片;
S5干燥:薄片在干燥辊道窑内干燥,干燥周期80-240min,最高干燥温度220℃,干燥后的坯体含水率低于0.5%;
S6坯体叠加:将多个薄片相互叠加组成坯体;
S7烧成:将得到的坯体底部涂一层耐火涂料进辊道窑,采用无模裸体发泡烧成;
S8冷加工:冷却工包括切割、磨边、倒角、开槽等,冷加工后的产品经分色、分级、包转入库。
优选的,所述坯体的厚度是:80-150mm。
优选的,所述薄片的厚度是:10-20mm。
优选的,所述坯体底部涂覆一层耐火涂层,所述耐火涂层由氧化铝、刚玉的一种或两种的任意比例组成。
优选的,所述薄片的合成原料包括如下物质:镁源,铝源,硅源,锌源,发泡剂,最终得到的发泡陶瓷中含有原位生成的镁锌尖晶石。本申请以锌源作为催化剂,升温过程中先生成顽火辉石和镁锌尖晶石固溶体,随着温度的升高,顽火辉石逐渐溶解,镁锌尖晶石固溶体生成量逐渐增大;在高温发泡过程中,原位合成的镁锌尖晶石固溶体微晶在熔体中具有钉扎作用,可减小熔体粘度下降速度,有效控制气孔异常增大,得到气孔孔径均匀性好、尺寸小的发泡陶瓷。正是由于钉扎作用的存在,使得各层薄片之间可以交叉,使得能够产生较强的粘结作用,从而避免在厚度方向上的薄弱部位的产生。
优选的,所述发泡陶瓷的合成过程中有顽火辉石产生。具有维持局部稳定性的作用,从而有效的促进气孔孔径均匀性好,尺寸小的发泡陶瓷的生成。
优选的,所述铝源为高岭土;所述发泡剂为黑碳化硅和/或绿碳化硅;所述镁源为氧化镁或者滑石;所述硅源为珍珠岩;所述锌源为氧化锌。
优选的,所述发泡陶瓷的合成原料包括如下份数的物质:硅源:50-80份;铝源:10-20份;镁源:10-20份;发泡剂:0.1-1份;锌源:1-5份;助泡剂:0-2份;减水剂:0-1份;坯体增强剂:0-1份。
优选的,所述助泡剂为碳酸钙、钾钠长石或二氧化锰的一种或两种以上任意比例的混合;所述减水剂为三聚磷酸钾、腐殖酸钠或偏硅酸钠的一种或两种以上任意比例的混合;所述坯体增强剂为CMC、MC或HPMC的一种或两种以上任意比例的混合。上述组份为本领域内常用的试剂,而且在本申请中起到的作用也与常规设置大致相同。
本申请能够带来如下有益效果:现有技术中得到厚度较厚的发泡陶瓷一般在耐火材料组成的模框内布置一定厚度的粉料而得到,之所以采用该种方法是因为采用模框布粉的方式由于模框的存在使发泡陶瓷散热效果不佳,从而影响退火速度,本申请利用预先得到成型坯体的做法,实现了厚度的累加,利用高温时相同成分的薄片相互反应并熔合成一体,客观上克服了接触面结合能力差的后果,在厚度方向上并不存在薄弱部位;
本申请采用无模裸烧方式生产发泡陶瓷,通过薄片多层叠烧实现所需厚度的发泡陶瓷产品,生产过程去掉了现有技术中使用的挡板和用于隔离产品与挡板的耐火纤维纸,即降低发泡陶瓷烧成过程中窑具吸热又减少了耐火纤维纸的使用,同时提高发泡陶瓷退火过程中散热速率,减少退火时间,降低了发泡陶瓷的生产成本,提高了生产效率。
具体实施方式
为能清楚说明本方案的技术特点,下面通过具体实施方式,对本申请进行详细阐述。
本申请通过如下的合成以及表征方面的实施例来说明该申请的具体实施方式,具体合成步骤如下:
S1秤料:按照质量份数分别称量发泡陶瓷的原料;
原料如表1所示:
表1:
S2发泡陶瓷原料球磨:采用湿法球磨加工,泥浆控制工艺指标为:细度2.0±0.2%,流速39±15”,比重1.50±0.05,水分38±2%;泥浆合格后依次过20目,80目,100目三道筛,并陈腐均化不小于48小时;
S3喷雾干燥:发泡陶瓷原料泥浆经喷雾干燥制备成含水率在10±0.5%范围内,粒度在20目-80目间的粉料;合格粉料储存于密闭料仓内陈腐均化不小于48小时;
S4干压成型:发泡陶瓷粉料,经皮带输送机,斗式提升机输送至压机,采用干压成型的方法压制成10-20mm的薄片;
S5干燥:薄片在干燥辊道窑内干燥,干燥周期80-240min,最高干燥温度220℃,干燥后的坯体含水率低于0.5%;
S6坯体叠加:将多个薄片相互叠加组成坯体;
薄片与坯体的厚度如表2所示:
表2:
编号 | 坯体原料编号 | 薄片厚度(mm) | 层数 | 坯体厚度(mm) |
1 | 1 | 10 | 8 | 80 |
2 | 2 | 15 | 10 | 150 |
3 | 3 | 20 | 5 | 100 |
4 | 4 | 15 | 10 | 150 |
5 | 5 | 15 | 10 | 150 |
S7烧成:将得到的坯体底部涂一层耐火涂料进辊道窑,采用无模裸体发泡烧成;
S8冷加工:冷却工包括切割、磨边、倒角、开槽等,冷加工后的产品经分色、分级、包转入库;
S9表征:对材料进行普通的性能表征,并取带有外表面的大小为50cm*50cm的材料,上下夹紧之后,对材料的中部进行液压冲击,直至发生断裂,观察断裂面与外表面的接缝是否有一定的重合,
表3:
编号 | 容重(kg/m<sup>3</sup>) | 抗折强度(MPa) | 热导系数(W/(m*K)) | 是否重合 |
1 | 178 | 12.1 | 0.077 | 否 |
2 | 166 | 14.5 | 0.086 | 否 |
3 | 184 | 12.9 | 0.084 | 否 |
4 | 301 | 8.1 | 0.121 | 部分重合 |
5 | 410 | 7.3 | 0.154 | 部分重合 |
由此可见,锌源以及珍珠岩都有一定的促进坯体向一体化转化的作用,推测是因为锌源可以促进在各个薄片之间建立晶格上的联系,而珍珠岩则是建立各个薄片之间的玻璃相之间的联系,从而产生协同作用,且两者都必不可少,共同促进了坯体的内部在焙烧过程中完成了一体化的过程。
以上仅为本申请的实施例而已,并不用于限制本申请。对于本领域技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等,均应包含在本申请的权利要求范围之内。
Claims (8)
1.一种无模裸烧发泡陶瓷的制造方法,其特征在于:包括如下步骤:首先将发泡陶瓷造粒粉压制成薄片,然后将至少两个薄片进行叠加得到坯体,最后将得到的坯体烧制得到发泡陶瓷;
所述薄片按照如下步骤进行:
S1秤料:按照质量份数分别称量发泡陶瓷的原料,所述发泡陶瓷的合成原料包括如下份数的物质:硅源:50-80份;铝源:10-20份;镁源:10-20份;发泡剂:0.1-1份;锌源:1-5份;助泡剂:0-2份;减水剂:0-1份;坯体增强剂:0-1份;
S2发泡陶瓷原料球磨:采用湿法球磨加工,泥浆控制工艺指标为:细度2.0±0.2%,流速39±15,比重1.50±0.05,水分38±2%;泥浆合格后依次过20目,80目,100目三道筛,并陈腐均化不小于48小时;
S3喷雾干燥:发泡陶瓷原料泥浆经喷雾干燥制备成含水率在10±0.5%范围内,粒度在20目-80目间的粉料;合格粉料储存于密闭料仓内陈腐均化不小于48小时;
S4干压成型:发泡陶瓷粉料,经皮带输送机,斗式提升机输送至压机,采用干压成型的方法压制成10-20mm的薄片;
S5干燥:薄片在干燥辊道窑内干燥,干燥周期80-240min,最高干燥温度220℃,干燥后的坯体含水率低于0.5%;
S6坯体叠加:将多个薄片相互叠加组成坯体;
S7烧成:将得到的坯体底部涂一层耐火涂料进辊道窑,采用无模裸体发泡烧成;
S8冷加工:冷却工包括切割、磨边、倒角、开槽,冷加工后的产品经分色、分级、包转入库。
2.根据权利要求1所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述坯体的厚度是:80-150mm。
3.根据权利要求1所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述薄片的厚度是:10-20mm。
4.根据权利要求1所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述坯体底部涂覆一层耐火涂层,所述耐火涂层由氧化铝、刚玉的一种或两种的任意比例组成。
5.根据权利要求1所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述薄片的合成原料包括如下物质:镁源,铝源,硅源,锌源,发泡剂,最终得到的发泡陶瓷中含有原位生成的镁锌尖晶石。
6.根据权利要求5所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述发泡陶瓷的合成过程中有顽火辉石产生。
7.根据权利要求5所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述铝源为高岭土;所述发泡剂为黑碳化硅和/或绿碳化硅;所述镁源为氧化镁或者滑石;所述硅源为珍珠岩;所述锌源为氧化锌。
8.根据权利要求5所述的一种无模裸烧发泡陶瓷的制造方法,其特征在于:所述助泡剂为碳酸钙、钾钠长石或二氧化锰的一种或两种以上任意比例的混合;所述减水剂为三聚磷酸钾、腐殖酸钠或偏硅酸钠的一种或两种以上任意比例的混合;所述坯体增强剂为CMC、MC或HPMC的一种或两种以上任意比例的混合。
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