CN108554751A - 一种碳刹车盘防氧化涂层的涂覆方法 - Google Patents
一种碳刹车盘防氧化涂层的涂覆方法 Download PDFInfo
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- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
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Abstract
本发明属于飞机刹车盘技术,涉及一种碳刹车盘防氧化涂层的涂覆方法。本发明包括:1)将配置好的碳刹车盘防氧化涂层前驱液倒入容器内,进行加热搅拌,保温温度≥40℃,保温时间为15~40min,在整个涂覆过程中持续搅拌;2)制备与刹车盘铆钉孔、指示杆孔相匹配的碳/碳销钉,在刷涂层前将销钉与刹车盘进行非机械铆接;3)在涂层的非摩擦面刷涂层前驱液,刷完后进行烘干,然后再次进行涂刷烘干,最后进行高温热处理;4)涂层处理完成后,逐一将销钉取出。本发明可以使涂层处理周期缩短,并且涂层涂刷更均匀,结合性更好。
Description
技术领域
本发明属于飞机刹车盘技术,涉及一种碳刹车盘防氧化涂层的涂覆方法。
背景技术
碳刹车盘因其优异的力学性能、热物理性能和摩擦磨损性能,广泛应用于飞机和赛车上。在实际使用过程中,为解决碳刹车盘氧化失效的问题,碳刹车盘非摩擦面必须涂覆防氧化涂层。但是,防氧化涂层在涂覆过程中存在以下问题:
(1)涂层前驱液室温下粘度大,涂刷不均匀,工人操作难度大;
(2)涂层前驱液在涂覆过程中容易在铆钉孔、指示杆孔等处富集,并在完成涂层热处理后固化成陶瓷,造成装配尺寸超差问题;
(3)传统涂层工艺需重复2~3次涂刷-烘干-热处理的工序流程,涂层处理周期长。
发明内容
为了避免现有技术的不足之处,本发明提出了一种碳刹车盘防氧化涂层的涂覆方法,通过增加预热搅拌、改变涂覆工装和涂覆工序优化现有碳刹车盘涂覆工艺。
本发明的技术方案是:一种碳刹车盘防氧化涂层的涂覆方法,步骤如下:
(1)将配置好的碳刹车盘防氧化涂层前驱液倒入容器内,进行加热搅拌,保温温度≥40℃,保温时间为15~40min,,在整个涂覆过程中持续搅拌。
(2)制备与刹车盘铆钉孔、指示杆孔相匹配的碳/碳销钉,在刷涂层前将销钉与刹车盘进行非机械铆接。
(3)在涂层的非摩擦面刷涂层前驱液,刷完后进行烘干,然后再次进行涂刷烘干,最后进行高温热处理。
(4)涂层处理完成后,逐一将销钉取出。
本发明与现有技术相比具有以下优点:
1、涂层处理周期缩短。一方面,涂层加热搅拌,使涂刷难度降低,涂刷单个碳盘的时间由5~10min缩短至2~5min,从而缩短了涂层批次处理周期;另一方面,涂层的高温处理虽然保温时间短,但升温、降温阶段所需时间长,一般需要2~3个工作日,本发明只需进行一次高温热处理,显著缩短了涂层处理周期,同时涂层的防氧化性能并未降低。此外,利用销钉提前将铆钉孔、指示杆孔堵住,避免了在刷涂层过程中涂层前驱液的富集,工件因尺寸超差问题引起的返工率也因此由30%~40%降至5%~10%,缩短了生产周期。
2、涂层涂刷更均匀,结合性更好。涂层前驱液加热搅拌,提高其均匀性,粘度、润湿角降低,与工件有良好的浸润性,可减少涂刷次数,涂刷难度降低,并避免前驱液在工件角落富集。
附图说明
图1是现有技术的工艺流程图;
图2是本发明的工艺流程图;
图3是应用本发明的具体实施例一与现有技术防氧化性能对比图;
图4是应用本发明的具体实施例二与现有技术防氧化性能对比图;
图5是应用本发明的具体实施例三与现有技术防氧化性能对比图。
具体实施方式
现结合附图及实施例对本发明的具体实施方式作进一步描述。
实施例1:本发明应用在中预警LS-108D刹车盘上,对三个批次共75件工件进行涂覆工艺改变前后的对比。改变后的涂覆工艺:将配置好的碳刹车盘防氧化涂层倒入烧杯内,将烧杯放入磁力搅拌器内进行加热搅拌,保温温度为40℃,保温时间为15min,在整个涂覆过程中持续搅拌。结果表明:单个工件的平均涂刷时间由10min缩短至5min,涂层处理周期由10个工作日缩短至7个工作日,返工率由37%降至8%,平均防氧化性能不低于传统工艺,参见图3。
实施例2:本发明应用在J10B的LS-129B刹车盘上,对三个批次共84件工件进行涂覆工艺改变前后的对比。改变后的涂覆工艺:将配置好的碳刹车盘防氧化涂层倒入烧杯内,将烧杯放入磁力搅拌器内进行加热搅拌,保温温度为60℃,保温时间为20min,在整个涂覆过程中持续搅拌。结果表明:单个工件的涂刷时间由7min缩短至2min,涂层处理周期由9个工作日缩短至5个工作日,返工率由25%降至6%,平均防氧化性能不低于传统工艺,参见图4。
实施例3:本发明应用在歼15的LS-158刹车盘上,对三个批次共198件工件进行涂覆工艺改变前后的对比。改变后的涂覆工艺:将配置好的碳刹车盘防氧化涂层倒入烧杯内,将烧杯放入磁力搅拌器内进行加热搅拌,保温温度为50℃,保温时间为40min,在整个涂覆过程中持续搅拌。结果表明:单个工件的涂刷时间由10min缩短至4min,涂层处理周期由16个工作日缩短至11个工作日,返工率由23%降至6%,平均防氧化性能不低于传统工艺,参见图5。
Claims (4)
1.一种碳刹车盘防氧化涂层的涂覆方法,其特征为所述涂覆方法步骤如下:
1)将配置好的碳刹车盘防氧化涂层前驱液倒入容器内,进行加热搅拌,保温温度≥40℃,保温时间为15~40min,,在整个涂覆过程中持续搅拌;
2)制备与刹车盘铆钉孔、指示杆孔相匹配的碳/碳销钉,在刷涂层前将销钉与刹车盘进行非机械铆接;
3)在涂层的非摩擦面刷涂层前驱液,刷完后进行烘干,然后再次进行涂刷烘干,最后进行高温热处理;
4)涂层处理完成后,逐一将销钉取出。
2.根据权利要求1所述的碳刹车盘防氧化涂层的涂覆方法,其特征为:所述保温温度为40℃。
3.根据权利要求1所述的碳刹车盘防氧化涂层的涂覆方法,其特征为:所述保温温度为50℃。
4.根据权利要求1所述的碳刹车盘防氧化涂层的涂覆方法,其特征为:所述保温温度为60℃。
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Citations (5)
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CN1165714A (zh) * | 1996-04-16 | 1997-11-26 | 泷源制造株式会社 | 用于涂饰工作的螺丝孔的遮盖具 |
KR20020048321A (ko) * | 2002-03-22 | 2002-06-22 | 유성산업 주식회사 | 브레이크 디스크의 표면처리방법 및 그 표면처리 장치 |
CN101712563A (zh) * | 2009-12-16 | 2010-05-26 | 西安超码科技有限公司 | 一种飞机炭刹车盘的表面防氧化处理方法 |
CN104312223A (zh) * | 2014-10-09 | 2015-01-28 | 孟红琳 | 一种航空刹车盘的保护层的制备方法 |
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CN1165714A (zh) * | 1996-04-16 | 1997-11-26 | 泷源制造株式会社 | 用于涂饰工作的螺丝孔的遮盖具 |
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