CN113547080B - 一种纤维冒口易割网及其制备方法和应用 - Google Patents
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Abstract
本发明涉及一种纤维冒口易割网及其制备方法和应用，属于铸造技术领域。本发明公开了一种纤维冒口易割网，包括纤维网本体以及涂覆在纤维本体表面的金属氧化物涂层。纤维网本体由碳纤维、石墨纤维中的一种或两种制成。金属氧化物涂层为氧化锆涂层、氧化镁涂层、氧化铝涂层、氧化铬涂层、氧化铈涂层中的一种或多种。本发明也公开了一种纤维冒口易割网的制备方法，包括将纤维先制成纤维网本体，然后在纤维网本体表面喷涂金属氧化物涂层。本发明还公开了一种纤维冒口易割网的应用，浇铸前将纤维冒口易割网放置在冒口根部，将铸件和冒口隔开，铸件凝固后，敲除纤维冒口易割网将铸件和冒口分开。
Description
技术领域
本发明涉及一种纤维冒口易割网及其制备方法和应用，属于铸造领域。
背景技术
国内从20世纪80年代就已经开始对易割冒口进行研究，先后研制出陶瓷片、玻璃纤维网等，但是陶瓷隔片需要增加装备和人员，且制作比较麻烦。尤其铸钢件浇注时为了保证铸件质量，需要冒口补缩，铸件浇注完成后，铸件浇注系统是产品工艺的附属品，需要气割去除，气割需要特殊工种作业，需要氧气乙炔，对环境有污染，人员高温作业，还要对冒口根部进行炭刨、打磨，费时费力。尽管现有技术中已经有用玻璃纤维过滤网作为铸造铝合金铸件的易割冒口隔片，如中国专利申请(公开号：CN105598368A)中也公开了一种用玻璃丝编制成方形网格并涂覆耐高温陶瓷浆料后烧结成过滤网代替易割片。但是现有公开的这些方案中均是针对铝合金铸件、铸铁，用于铝合金铸件的过滤网只需大于700℃，用于铸钢的过滤网只需大于1370℃即可，因此，现有技术中的过滤网均是采用玻璃丝编制或在玻璃丝上涂覆耐高温陶瓷浆料，但是玻璃丝的熔点较低，即便涂覆了耐高温陶瓷浆料，也无法达到铸钢大于1600℃的要求。
发明内容
本发明的目的是针对现有技术中存在的上述问题，提供一种纤维冒口易割网及其制备方法和应用。
本发明的上述目的可以通过下列技术方案来实现：一种纤维冒口易割网，所述纤维冒口易割网包括纤维本体以及涂覆在纤维本体表面的金属氧化物涂层。
在上述纤维冒口易割网中，所述纤维为碳纤维、石墨纤维中的一种或两种。
作为优选，所述纤维为碳纤维。
作为优选，所述纤维为碳纤维、石墨纤维按质量比(1-3)：1混合的混合纤维。
在上述纤维冒口易割网中，所述金属氧化物涂层为氧化锆涂层、氧化镁涂层、氧化铝涂层、氧化铈涂层中的一种或多种。
作为优选，所述金属氧化物涂层为氧化锆涂层、氧化铈涂层中的一种或两种。
进一步优选，所述金属氧化物涂层为氧化锆涂层。
在上述纤维冒口易割网中，所述纤维冒口易割网的孔径为1mm-3mm。
本发明还提供一种上述纤维冒口易割网的制备方法，所述的制备方法包括如下步骤：将纤维先制成纤维网本体，然后在纤维网本体表面喷涂金属氧化物涂层。
本发明还提供一种上述纤维冒口易割网的应用，浇铸前将纤维冒口易割网放置在冒口根部，将铸件和冒口隔开，铸件凝固后，敲除纤维冒口易割网将铸件和冒口分开。
与现有技术相比，本发明具有如下优点：
1、将具有韧性的纤维材料表面涂覆耐高温金属氧化物涂层，放置在冒口根部，使纤维冒口易割网不阻流液态金属补缩的同时耐钢液高温，钢液凝固后形成网状，阻断冒口和铸件连接，使冒口易去除。
2、现有的铸钢技术，冒口和铸件是直接连接的，浇注完成铸件凝固后，冒口去除需要用氧气-乙炔气割去除，去除后冒口根部还要进行大量的打磨。使用该技术后冒口只要敲击就掉了，冒口根部几乎没有修磨量，大幅提高效率，降低成本。
具体实施方式
以下是本发明的具体实施例，并说明对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。如无特殊说明，本发明下述实施例中采用原料均为常规原料，使用方法均为常规方法
实施例1
将碳纤维编制成孔间隙为1mm的网，根据产品所需尺寸制成100*100mm的纤维网，并在网表面喷涂氧化锆涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1mm，修磨光滑。
实施例2
将碳纤维编制成孔间隙为3mm的网，根据产品所需尺寸制成φ150mm的纤维网，并在网表面喷涂氧化铝涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1mm，修磨光滑。
实施例3
将碳纤维编制成孔间隙为2mm的网，根据产品所需尺寸制成φ200mm的纤维网，并在网表面喷涂氧化镁涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1.5mm，修磨光滑。
实施例4
将石墨纤维编制成孔间隙为3mm的网，根据产品所需尺寸制成100*100mm的纤维网，并在网表面喷涂氧化铝涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1mm，修磨光滑。
实施例5
将石墨纤维编制成孔间隙为1mm的网，根据产品所需尺寸制成φ200mm的纤维网，并在网表面喷涂氧化镁涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1mm，修磨光滑。
实施例6
将石墨纤维编制成孔间隙为2mm的网，根据产品所需尺寸制成φ100mm的纤维网，并在网表面喷涂氧化铈涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1.5mm，修磨光滑。
实施例7
将碳纤维与石墨纤维质量比为1:1的混合纤维编制成孔间隙为2mm的网，根据产品所需尺寸制成φ100mm的纤维网，并在网表面喷涂氧化铈涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部2mm，修磨光滑。
实施例8
将碳纤维与石墨纤维质量比为3:1的混合纤维编制成孔间隙为1mm的网，根据产品所需尺寸制成100*100mm的纤维网，并在网表面喷涂氧化铝涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1.5mm，修磨光滑。
实施例9
将碳纤维与石墨纤维质量比为2:1的混合纤维编制成孔间隙为3mm的网，根据产品所需尺寸制成φ200mm的纤维网，并在网表面喷涂氧化锆涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，轻轻敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部1mm，修磨光滑。
对比例1
将碳纤维编制成孔间隙为2mm的网，根据产品所需尺寸制成φ100mm的纤维网。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，多次敲击冒口根部的纤维冒口易割网，冒口脱落，残余根部3mm，砂轮机打磨光滑。
对比例2
不放置纤维冒口易割网，直接注入钢液。待冷却后，气割去除冒口，砂轮机打磨光滑。
对比例3
将玻璃纤维编制成孔间隙为3mm的网，根据产品所需尺寸制成φ150mm的纤维网，并在网表面喷涂氧化锆涂层。将制得的纤维冒口易割网放置在冒口根部，使铸件和冒口隔开，注入钢液。待冷却后，敲击冒口根部的纤维冒口易割网无法去除冒口，气割去除冒口发现玻璃纤维网已熔化，残余根部5mm，砂轮机打磨光滑。
综上所述，通过本发明的耐高温纤维冒口易割网可以不阻流液态金属补缩的同时耐钢液高温，使冒口轻松去除并且残留的根部极短，能轻松打磨光滑。
鉴于本发明方案实施例众多，各实施例实验数据庞大众多，不适合于此处逐一列举说明，但是各实施例所需要验证的内容和得到的最终结论均接近。
尽管对本发明已作出了详细的说明并引证了一些具体实施例，但是对本领域熟练技术人员来说，只要不离开本发明的精神和范围可作各种变化或修正是显然的。
Claims (3)
1.一种纤维冒口易割网，其特征在于，所述纤维冒口易割网包括纤维网本体以及涂覆在纤维本体表面的金属氧化物涂层；
所述纤维网本体由碳纤维、石墨纤维按质量比（1-3）：1混合的混合纤维制成；
所述金属氧化物涂层的厚度为50-750μm；
所述金属氧化物涂层为氧化锆涂层、氧化镁涂层、氧化铝涂层、氧化铬涂层、氧化铈涂层中的一种或多种；
所述纤维冒口易割网的孔径为1mm-3mm。
2.一种如权利要求1所述的纤维冒口易割网的制备方法，其特征在于，所述的制备方法包括将纤维先制成纤维网本体，然后在纤维网本体表面喷涂金属氧化物涂层。
3.一种如权利要求1所述的纤维冒口易割网的应用，其特征在于，浇铸前将纤维冒口易割网放置在冒口根部，将铸件和冒口隔开，铸件凝固后，敲除纤维冒口易割网将铸件和冒口分开。
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Inventor after: Fu Mingkang Inventor after: Li Lingyu Inventor after: Mao Chengrong Inventor before: Fu Mingkang Inventor before: Xiong Liuyi |