CN112299853A - 一种海绵铁隧道窑生产用SiC复合推板材料 - Google Patents
一种海绵铁隧道窑生产用SiC复合推板材料 Download PDFInfo
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 98
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 54
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical class C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive effect Effects 0.000 claims abstract description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 26
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 21
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
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- 150000001875 compounds Chemical class 0.000 claims 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 46
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 46
- 230000008901 benefit Effects 0.000 abstract description 6
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- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000012758 reinforcing additive Substances 0.000 abstract 1
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
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- UUNNUENETDBNPB-HKBOAZHASA-N (2s)-2-[[(2s,3r)-3-amino-2-hydroxy-4-(4-phenylmethoxyphenyl)butanoyl]amino]-4-methylpentanoic acid Chemical compound C1=CC(C[C@@H](N)[C@H](O)C(=O)N[C@@H](CC(C)C)C(O)=O)=CC=C1OCC1=CC=CC=C1 UUNNUENETDBNPB-HKBOAZHASA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
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- 238000009628 steelmaking Methods 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本发明公开了一种海绵铁隧道窑生产用SiC复合推板材料，涉及碳化硅制品技术领域。本发明由以下质量份原料组成：SiC粉体70～80份、硅粉5～8份、高温粘合剂8～10份、超细二硫化钼粉末3～5份、石墨烯粉末1～3份、纳米氧化硅1～3份、改性钛酸铝1～3份和氧化锆细粉1～3份。本发明以超细的SiC粉体和硅粉为基体，添加各种超细补强助剂，生产得到复合碳化硅推板，该推板具有抗氧化性能强、使用寿命长、耐磨、抗热震性能好、耐高温、强度高、表面光滑等特点，可应用于生产海绵铁的隧道窑的窑车底部，解决了现有的海绵铁隧道窑高铝质推板使用寿命低，成本高，缺乏足够的经济效益和市场竞争力的问题。
Description
技术领域
本发明属于碳化硅制品技术领域，特别是涉及一种海绵铁隧道窑生产用SiC复合推板材料。
背景技术
海绵铁是在铁的熔点温度以下，铁精矿被还原，形成一种多孔和低密度物质，称直接还原铁，近两年，由于钢铁市场的升温，加之废钢的短缺和海绵铁中As、Sb、S等杂质元素极低，而被广泛应用于转炉及电炉炼钢，国内海绵铁在产量上尚无法满足国内需要，而隧道窑生产海绵铁，成本低，杂质含量少。
隧道窑生产海绵铁工艺：将加工好的原料、还原剂按照比例装入设置在窑车上的的还原罐内，送入全高炉煤气隧道窑实现海绵铁烧成，待出窑后自然冷却后卸锭、吸净残余废焦末再进行装车的循环作业模式。
在隧道窑烧结海绵铁的过程中，隧道窑内的窑具一般为高铝质窑具，此种窑具使用寿命低，成本高，缺乏足够的经济效益和市场竞争力，而碳化硅是优质人造材料，优良的物理化学性能使之成为多种行业的优质原材料，利用它优良的热力学特性研制成功各种高中档耐火材料，碳化硅窑具就是一个典型应用实例，故开发一种SiC复合推板材料，应用在窑车底部。
发明内容
本发明的目的在于提供一种海绵铁隧道窑生产用SiC复合推板材料，以超细的SiC粉体和硅粉为基体，添加各种超细补强助剂，生产得到复合碳化硅推板，该推板具有抗氧化性能强、使用寿命长、耐磨、抗热震性能好、耐高温、强度高、表面光滑等特点，可应用于生产海绵铁的隧道窑的窑车底部，解决了现有的海绵铁隧道窑高铝质推板使用寿命低，成本高，缺乏足够的经济效益和市场竞争力的问题。
为解决上述技术问题，本发明是通过以下技术方案实现的：
本发明为一种海绵铁隧道窑生产用SiC复合推板材料，由以下质量份原料组成：SiC粉体70～80份、硅粉5～8份、高温粘合剂8～10份、超细二硫化钼粉末3～5份、石墨烯粉末1～3份、纳米氧化硅1～3份、改性钛酸铝1～3份和氧化锆细粉1～3份。
进一步地，所述推板材料由以下质量份原料组成：SiC粉体70份、硅粉8份、高温粘合剂10份、超细二硫化钼粉末5份、石墨烯粉末1份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份。
进一步地，所述推板材料由以下质量份原料组成：SiC粉体75份、硅粉6份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末2份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份。
进一步地，所述推板材料由以下质量份原料组成：SiC粉体80份、硅粉5份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末1份、纳米氧化硅1份、改性钛酸铝1份和氧化锆细粉1份。
进一步地，所述SiC粉体的D50设置为0.3～1.0μm。
进一步地，所述高温粘合剂设置为耐高温无机粘合剂，耐高温无机粘合剂由无机碱、金属氧化物和氢氧化物组成。
进一步地，所述超细二硫化钼粉末的D50设置为0.4～1.0μm。
进一步地，所述纳米氧化硅的粒径设置为500nm以下。
进一步地，所述氧化锆细粉的D50设置为0.4～0.6μm。
本发明具有以下有益效果：
1、本发明通过添加超细二硫化钼粉末，可以提高推板的耐刮擦力和硬度，提高推板的耐磨性，使得推板适用于高温、高压、高转速高负荷的机械工作状态，延长推板使用寿命。
2、本发明通过添加石墨烯粉末，大幅度提高推板的力学性能。
3、本发明通过添加纳米氧化硅，可以提高推板的耐磨性、抗老化性能，并改善推板表面的光洁度。
4、本发明通过添加改性钛酸铝和氧化锆细粉，使得该复合推板的抗热震性得到大大提高，改性钛酸铝可以在较高温度下使用，可以很好的适应高温下的氧化问题，而氧化锆高温化学性质稳定、耐腐蚀、抗氧化、抗热震。
5、本发明通过对SiC粉体、二硫化钼粉末、氧化硅粉末和氧化锆粉末粒度上的处理，使得各组分物料之间能混合的更加均匀，相互之间的贴附力更强，整体提高推板的力学性能。
当然，实施本发明的任一产品并不一定需要同时达到以上所述的所有优点。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明为一种海绵铁隧道窑生产用SiC复合推板材料，由以下质量份原料组成：SiC粉体70～80份、高温粘合剂10～15份、超细二硫化钼粉末3～5份、石墨烯粉末1～3份、纳米氧化硅1～3份、改性钛酸铝1～3份和氧化锆细粉1～3份，其中，SiC粉体的D50设置为0.3～1.0μm，高温粘合剂设置为耐高温无机粘合剂，耐高温无机粘合剂由无机碱、金属氧化物和氢氧化物组成，超细二硫化钼粉末的D50设置为0.4～1.0μm，纳米氧化硅的粒径设置为500nm以下，氧化锆细粉的D50设置为0.4～0.6μm。
实施例1
一种海绵铁隧道窑生产用SiC复合推板材料，由以下质量份原料组成：SiC粉体70份、硅粉8份、高温粘合剂10份、超细二硫化钼粉末5份、石墨烯粉末1份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份。
本发明的SiC复合推板材料生产SiC复合推板的工艺步骤设置为：
S1：按重量份数称取SiC粉体70份、硅粉8份、高温粘合剂10份、超细二硫化钼粉末5份、石墨烯粉末1份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份；
S2：将SiC粉体70份、硅粉8份、超细二硫化钼粉末5份、石墨烯粉末1份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份搅拌混合均匀，再加入高温粘合剂10份，再次搅拌均匀，通过液压成型机压制成推板坯料；
S3：将推板坯料放入干燥炉中进行初步干燥；
S4：可控气氛烧成，将干燥后的推板坯料装入氮化炉中在高温下与高纯氮气反应，制备成氮化硅结合碳化硅的复合推板，经检测合格后，包装发运。
实施例2
一种海绵铁隧道窑生产用SiC复合推板材料，由以下质量份原料组成：SiC粉体75份、硅粉6份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末2份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份。
本发明的SiC复合推板材料生产SiC复合推板的工艺步骤设置为：
S1：按重量份数称取SiC粉体75份、硅粉6份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末2份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份；
S2：将SiC粉体75份、硅粉6份、超细二硫化钼粉末3份、石墨烯粉末2份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份搅拌混合均匀，再加入高温粘合剂8份，再次搅拌均匀，通过液压成型机压制成推板坯料；
S3：将推板坯料放入干燥炉中进行初步干燥；
S4：可控气氛烧成，将干燥后的推板坯料装入氮化炉中在高温下与高纯氮气反应，制备成氮化硅结合碳化硅的复合推板，经检测合格后，包装发运。
实施例3
一种海绵铁隧道窑生产用SiC复合推板材料，由以下质量份原料组成：SiC粉体80份、硅粉5份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末1份、纳米氧化硅1份、改性钛酸铝1份和氧化锆细粉1份。
本发明的SiC复合推板材料生产SiC复合推板的工艺步骤设置为：
S1：按重量份数称取SiC粉体80份、硅粉5份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末1份、纳米氧化硅1份、改性钛酸铝1份和氧化锆细粉1份；
S2：将SiC粉体80份、硅粉5份、超细二硫化钼粉末3份、石墨烯粉末1份、纳米氧化硅1份、改性钛酸铝1份和氧化锆细粉1份搅拌混合均匀，再加入高温粘合剂8份，再次搅拌均匀，通过液压成型机压制成推板坯料；
S3：将推板坯料放入干燥炉中进行初步干燥；
S4：可控气氛烧成，将干燥后的推板坯料装入氮化炉中在高温下与高纯氮气反应，制备成氮化硅结合碳化硅的复合推板，经检测合格后，包装发运。
超细二硫化钼粉末可以提高推板的耐刮擦力和硬度，二硫化钼是重要的固体润滑剂，特别适用于需要在高温高压下使用的产品，提高推板的耐磨性，它覆盖在表面，能保护其它材料，防止它们被氧化，尤其是使其他材料不易脱落，贴附力增强，适用于高温、高压、高转速高负荷的机械工作状态，延长推板使用寿命。
石墨烯粉末具有优异的光学、电学、力学特性，在材料学、微纳加工、能源、生物医学和药物传递等方面具有重要的应用前景，其可以大幅度提高推板的力学性能。
纳米氧化硅是一种重要的高科技超微细无机新材料，因其具有粒径很小、比表面积大、表面吸附力强、表面能大、化学纯度高、分散性能好、稳定性好等，在众多学科及领域内具优点，有着不可取代的作用，纳米氧化硅的加入可以提高推板的耐磨性、抗老化性能，并改善推板表面的光洁度。
改性钛酸铝和氧化锆细粉使得该复合推板的抗热震性得到大大提高，对钛酸铝进行改性，抑制其热分解，改善其热稳定性和降低它的各向异性，减少微裂纹，改善其机械性能，改性后的钛酸铝是著名的热膨胀系数较低的材料，钛酸铝在反复和长期的使用过程中不会出现失透现象，可以在较高温度下使用，还可以很好的适应高温下的氧化问题，而氧化锆具有高熔点、高电阻率、高折射率和低热膨胀系数的性质，高温化学性质稳定、耐腐蚀、抗氧化、抗热震、不挥发、无污染，是一种好的耐火材料。
碳化硅材料具有良好的高温强度、耐磨性、耐腐蚀性、高热导、高绝缘性，本发明以超细的SiC粉体和硅粉为基体，添加各种超细补强助剂，生产得到复合碳化硅推板，该推板具有抗氧化性能强、使用寿命长、耐磨、抗热震性能好、耐高温、强度高、表面光滑等特点，广泛应用于各式推板窑、梭式窑及隧道窑中，亦可应用于生产海绵铁的隧道窑的窑车底部，成功取代各种高铝质窑具，使用寿命增加数倍，成本大幅度降低，效益和市场竞争力明显提高，取得很好的社会经济效益。
在本说明书的描述中，参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本发明的优选实施例，并不限制本发明，任何对前述各实施例所记载的技术方案进行修改，对其中部分技术特征进行等同替换，均属于在本发明的保护范围。
Claims (9)
1.一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于：由以下质量份原料组成：SiC粉体70～80份、硅粉5～8份、高温粘合剂8～10份、超细二硫化钼粉末3～5份、石墨烯粉末1～3份、纳米氧化硅1～3份、改性钛酸铝1～3份和氧化锆细粉1～3份。
2.根据权利要求1所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述推板材料由以下质量份原料组成：SiC粉体70份、硅粉8份、高温粘合剂10份、超细二硫化钼粉末5份、石墨烯粉末1份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份。
3.根据权利要求1所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述推板材料由以下质量份原料组成：SiC粉体75份、硅粉6份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末2份、纳米氧化硅2份、改性钛酸铝2份和氧化锆细粉2份。
4.根据权利要求1所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述推板材料由以下质量份原料组成：SiC粉体80份、硅粉5份、高温粘合剂8份、超细二硫化钼粉末3份、石墨烯粉末1份、纳米氧化硅1份、改性钛酸铝1份和氧化锆细粉1份。
5.根据权利要求1～4任意一项所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述SiC粉体的D50设置为0.3～1.0μm。
6.根据权利要求1～4任意一项所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述高温粘合剂设置为耐高温无机粘合剂，耐高温无机粘合剂由无机碱、金属氧化物和氢氧化物组成。
7.根据权利要求1～4任意一项所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述超细二硫化钼粉末的D50设置为0.4～1.0μm。
8.根据权利要求1～4任意一项所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述纳米氧化硅的粒径设置为500nm以下。
9.根据权利要求1～4任意一项所述的一种海绵铁隧道窑生产用SiC复合推板材料，其特征在于，所述氧化锆细粉的D50设置为0.4～0.6μm。
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