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 PDF

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CN108554751A
CN108554751A CN201711388982.6A CN201711388982A CN108554751A CN 108554751 A CN108554751 A CN 108554751A CN 201711388982 A CN201711388982 A CN 201711388982A CN 108554751 A CN108554751 A CN 108554751A
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brake disc
carbon
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强琪
任飒
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Xian Aviation Brake Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1042Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/28Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/32Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment 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
    • B05D3/007After-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment 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
    • B05D3/02Pretreatment 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 by baking
    • B05D3/0254After-treatment

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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

一种碳刹车盘防氧化涂层的涂覆方法
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℃。
CN201711388982.6A 2017-12-20 2017-12-20 一种碳刹车盘防氧化涂层的涂覆方法 Pending CN108554751A (zh)

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Application publication date: 20180921