CN106007731A - 一种高韧性陶瓷喷嘴材料及其制备方法 - Google Patents
一种高韧性陶瓷喷嘴材料及其制备方法 Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 40
- 239000000919 ceramic Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims abstract description 38
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims abstract description 33
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 20
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 19
- 229910033181 TiB2 Inorganic materials 0.000 claims abstract description 19
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims abstract description 19
- GIWKOZXJDKMGQC-UHFFFAOYSA-L lead(2+);naphthalene-2-carboxylate Chemical compound [Pb+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 GIWKOZXJDKMGQC-UHFFFAOYSA-L 0.000 claims abstract description 19
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims abstract description 19
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 19
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 19
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 19
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 19
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910003470 tongbaite Inorganic materials 0.000 claims abstract description 19
- 229910052582 BN Inorganic materials 0.000 claims abstract description 18
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 15
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 15
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 13
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 13
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 13
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 54
- 239000000843 powder Substances 0.000 claims description 35
- 238000001354 calcination Methods 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 25
- 239000011812 mixed powder Substances 0.000 claims description 22
- 238000000498 ball milling Methods 0.000 claims description 21
- 241001132374 Asta Species 0.000 claims description 18
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 18
- 235000015895 biscuits Nutrition 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 abstract description 2
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 229910052621 halloysite Inorganic materials 0.000 abstract 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 abstract 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 abstract 1
- 239000005543 nano-size silicon particle Substances 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 229920002678 cellulose Polymers 0.000 description 6
- 239000001913 cellulose Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
本发明公开了一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅70‑75份、氮化硼26‑32份、纳米碳化硅13‑17份、氟化镁10‑14份、碳化铬18‑22份、氧化铝15‑19份、二硼化钛13‑17份、高岭土5‑8份、埃洛石3‑6份、轻质碳酸钙1‑5份、氧化镁9‑13份、水玻璃1‑3份、乙酸正丁酯5.3‑6.0份、羧甲基纤维素3.5‑4.8份、环烷酸铅0.8‑1.6份。本发明还公开了所述高韧性陶瓷喷嘴材料的制备方法。本发明制备的陶瓷喷嘴强度高、韧性好,能够大大提高陶瓷喷嘴的抗变形能力,致密度高,提高了喷嘴的耐冲刷性能,延长了喷嘴的使用寿命。
Description
技术领域
本发明涉及陶瓷喷嘴技术领域,具体是一种高韧性陶瓷喷嘴材料及其制备方法。
背景技术
非晶磁环是用非晶材料加工的磁性元件。根据所用非晶带材的材质不同,可分为铁基非晶,钴基非晶等等。根据材料的形状,可分为带材型磁环和粉末型磁环。非晶磁环的特点的饱和磁密远高于普通铁氧体和粉末磁芯。非晶磁环或称为金属玻璃,它是20世纪70年代问世的一种新型材料,是利用急冷技术将钢液一次成型为厚度为30微米的薄带,然后通过薄带绕制而成。
在非晶磁环加工过程中,喷嘴是关键部件,熔融状态的合金从喷嘴的狭缝中喷出,被移动的冷却基质快速冷却凝固,从而生产出连续的非晶带材。由于喷嘴的工作条件苛刻,要求抗瞬时热震、抗高速气流冲击、抗高温熔融金属的冲刷、耐化学腐蚀以及抗氧化。现有的陶瓷喷嘴材料普遍存在韧性不足、使用寿命短的缺陷,难以满足市场对喷嘴性能日益提高的需求。
发明内容
本发明的目的在于提供一种高韧性陶瓷喷嘴材料及其制备方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅70-75份、氮化硼26-32份、纳米碳化硅13-17份、氟化镁10-14份、碳化铬18-22份、氧化铝15-19份、二硼化钛13-17份、高岭土5-8份、埃洛石3-6份、轻质碳酸钙1-5份、氧化镁9-13份、水玻璃1-3份、乙酸正丁酯5.3-6.0份、羧甲基纤维素3.5-4.8份、环烷酸铅0.8-1.6份。
作为本发明进一步的方案:由以下按照重量份的原料组成:氮化硅71-74份、氮化硼27-31份、纳米碳化硅14-16份、氟化镁11-13份、碳化铬19-21份、氧化铝16-18份、二硼化钛14-16份、高岭土6-7份、埃洛石4-5份、轻质碳酸钙2-4份、氧化镁10-12份、水玻璃1.5-2.4份、乙酸正丁酯5.5-5.8份、羧甲基纤维素3.7-4.6份、环烷酸铅0.9-1.4份。
作为本发明再进一步的方案:由以下按照重量份的原料组成:氮化硅72.5份、氮化硼29份、纳米碳化硅15份、氟化镁12份、碳化铬20份、氧化铝17份、二硼化钛15份、高岭土6.4份、埃洛石4.7份、轻质碳酸钙3份、氧化镁11份、水玻璃1.8份、乙酸正丁酯5.7份、羧甲基纤维素4.2份、环烷酸铅1.1份。
所述高韧性陶瓷喷嘴材料的制备方法,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合2-3h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在960-1000℃下煅烧处理1-2h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合5-6h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、10-15Mpa、1350-1400℃下进行预烧结处理0.5-1h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合10-13h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、40-45Mpa、1850-1880℃下进行烧结处理,冷却后获得成品。
与现有技术相比,本发明的有益效果是:
本发明制备的陶瓷喷嘴强度高、韧性好,能够大大提高陶瓷喷嘴的抗变形能力,致密度高,提高了喷嘴的耐冲刷性能,增加了喷嘴对高温金属的耐腐蚀性能,减少喷嘴的堵包现象,延长了喷嘴的使用寿命。
具体实施方式
下面结合具体实施方式对本发明的技术方案作进一步详细地说明。
实施例1
一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅70份、氮化硼26份、纳米碳化硅13份、氟化镁10份、碳化铬18份、氧化铝15份、二硼化钛13份、高岭土5份、埃洛石3份、轻质碳酸钙1份、氧化镁9份、水玻璃1份、乙酸正丁酯5.3份、羧甲基纤维素3.5份、环烷酸铅0.8份。
本实施例中所述高韧性陶瓷喷嘴材料的制备方法,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合2h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在960℃下煅烧处理1h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合5h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、10Mpa、1350℃下进行预烧结处理0.5h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合10h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、40Mpa、1850℃下进行烧结处理,冷却后获得成品。
实施例2
一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅72份、氮化硼32份、纳米碳化硅15份、氟化镁14份、碳化铬18份、氧化铝16份、二硼化钛14份、高岭土8份、埃洛石3份、轻质碳酸钙2份、氧化镁13份、水玻璃1份、乙酸正丁酯5.5份、羧甲基纤维素4.8份、环烷酸铅0.8份。
本实施例中所述高韧性陶瓷喷嘴材料的制备方法,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合3h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在970℃下煅烧处理2h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合5h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、10Mpa、1400℃下进行预烧结处理1h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合11h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、45Mpa、1860℃下进行烧结处理,冷却后获得成品。
实施例3
一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅72.5份、氮化硼29份、纳米碳化硅15份、氟化镁12份、碳化铬20份、氧化铝17份、二硼化钛15份、高岭土6.4份、埃洛石4.7份、轻质碳酸钙3份、氧化镁11份、水玻璃1.8份、乙酸正丁酯5.7份、羧甲基纤维素4.2份、环烷酸铅1.1份。
本实施例中所述高韧性陶瓷喷嘴材料的制备方法,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合2.5h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在980℃下煅烧处理1.5h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合5.5h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、13Mpa、1380℃下进行预烧结处理1h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合12h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、42Mpa、1860℃下进行烧结处理,冷却后获得成品。
实施例4
一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅74份、氮化硼28份、纳米碳化硅17份、氟化镁12份、碳化铬18份、氧化铝16份、二硼化钛17份、高岭土6份、埃洛石6份、轻质碳酸钙2份、氧化镁9份、水玻璃2份、乙酸正丁酯6.0份、羧甲基纤维素3.8份、环烷酸铅0.9份。
本实施例中所述高韧性陶瓷喷嘴材料的制备方法,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合3h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在970℃下煅烧处理2h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合5.5h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、11Mpa、1390℃下进行预烧结处理0.5h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合10h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、45Mpa、1880℃下进行烧结处理,冷却后获得成品。
实施例5
一种高韧性陶瓷喷嘴材料,由以下按照重量份的原料组成:氮化硅75份、氮化硼32份、纳米碳化硅17份、氟化镁14份、碳化铬22份、氧化铝19份、二硼化钛17份、高岭土8份、埃洛石6份、轻质碳酸钙5份、氧化镁13份、水玻璃3份、乙酸正丁酯6.0份、羧甲基纤维素4.8份、环烷酸铅1.6份。
本实施例中所述高韧性陶瓷喷嘴材料的制备方法,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合3h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在1000℃下煅烧处理2h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合6h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、15Mpa、1400℃下进行预烧结处理1h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合13h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、45Mpa、1880℃下进行烧结处理,冷却后获得成品。
对实施例1-5所制备的陶瓷喷嘴材料进行性能测试,测试结果如下表所示。
表1性能测试表
组别 | 抗弯强度(Mpa) | 断裂韧性(Mpa·m1/2) | 致密度(%) | 体积密度(g/cm3) |
实施例1 | 695 | 6.55 | 97 | 3.31 |
实施例2 | 712 | 6.38 | 98 | 3.29 |
实施例3 | 728 | 6.82 | 97 | 3.34 |
实施例4 | 726 | 6.79 | 96 | 3.35 |
实施例5 | 704 | 6.63 | 97 | 3.34 |
从上表可以看出,本发明制备的陶瓷喷嘴强度高、韧性好,能够大大提高陶瓷喷嘴的抗变形能力,致密度高,提高了喷嘴的耐冲刷性能,增加了喷嘴对高温金属的耐腐蚀性能,减少喷嘴的堵包现象,延长了喷嘴的使用寿命。
上面对本发明的较佳实施方式作了详细说明,但是本发明并不限于上述实施方式,在本领域的普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下作出各种变化。
Claims (4)
1.一种高韧性陶瓷喷嘴材料,其特征在于,由以下按照重量份的原料组成:氮化硅70-75份、氮化硼26-32份、纳米碳化硅13-17份、氟化镁10-14份、碳化铬18-22份、氧化铝15-19份、二硼化钛13-17份、高岭土5-8份、埃洛石3-6份、轻质碳酸钙1-5份、氧化镁9-13份、水玻璃1-3份、乙酸正丁酯5.3-6.0份、羧甲基纤维素3.5-4.8份、环烷酸铅0.8-1.6份。
2.根据权利要求1所述的高韧性陶瓷喷嘴材料,其特征在于,由以下按照重量份的原料组成:氮化硅71-74份、氮化硼27-31份、纳米碳化硅14-16份、氟化镁11-13份、碳化铬19-21份、氧化铝16-18份、二硼化钛14-16份、高岭土6-7份、埃洛石4-5份、轻质碳酸钙2-4份、氧化镁10-12份、水玻璃1.5-2.4份、乙酸正丁酯5.5-5.8份、羧甲基纤维素3.7-4.6份、环烷酸铅0.9-1.4份。
3.根据权利要求2所述的高韧性陶瓷喷嘴材料,其特征在于,由以下按照重量份的原料组成:氮化硅72.5份、氮化硼29份、纳米碳化硅15份、氟化镁12份、碳化铬20份、氧化铝17份、二硼化钛15份、高岭土6.4份、埃洛石4.7份、轻质碳酸钙3份、氧化镁11份、水玻璃1.8份、乙酸正丁酯5.7份、羧甲基纤维素4.2份、环烷酸铅1.1份。
4.一种如权利要求1-3任一所述的高韧性陶瓷喷嘴材料的制备方法,其特征在于,步骤如下:
1)称取氟化镁、碳化铬和高岭土,投入干法球磨机中,球磨混合2-3h,获得第一混合粉料;
2)将第一混合粉料投入至煅烧炉中,在960-1000℃下煅烧处理1-2h,水淬,获得煅烧料;
3)将煅烧料粉碎后,获得煅烧粉末,备用;
4)称取氮化硅、氮化硼、纳米碳化硅、氧化铝、二硼化钛、埃洛石和轻质碳酸钙,投入干法球磨机中,球磨混合5-6h,获得第二混合粉料;
5)将第二混合粉料在100Mpa下进行等静压处理,获得等静压产物;
6)将等静压产物放入热压烧结炉中,在惰性气体氛围、10-15Mpa、1350-1400℃下进行预烧结处理0.5-1h,获得预烧结产物;
7)将预烧结产物粉碎后,获得预烧结粉末;
8)将预烧结粉末与煅烧粉末混合,称取并加入氧化镁、水玻璃、乙酸正丁酯、羧甲基纤维素和环烷酸铅,投入至干法球磨机中,球磨混合10-13h,获得坯料;
9)将坯料在150Mpa下压制成型,获得素坯;
10)将素坯放入热压烧结炉中,在惰性气体氛围、40-45Mpa、1850-1880℃下进行烧结处理,冷却后获得成品。
Priority Applications (1)
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