CN105924139B - 一体成型金属封装汽车火花塞陶瓷喷嘴及其加工工艺 - Google Patents

一体成型金属封装汽车火花塞陶瓷喷嘴及其加工工艺 Download PDF

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CN105924139B
CN105924139B CN201610287567.0A CN201610287567A CN105924139B CN 105924139 B CN105924139 B CN 105924139B CN 201610287567 A CN201610287567 A CN 201610287567A CN 105924139 B CN105924139 B CN 105924139B
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李建辉
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Abstract

一体成型金属封装汽车火花塞陶瓷喷嘴加工工艺，包括以下步骤：根据干粉选材的配比称取原料，混合均匀；将混合均匀的干粉选材原料加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa‑250MPa；将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；将车床加工成型后的产品进行上釉处理；在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。本发明工艺简单，制备的火花塞陶瓷喷嘴耐高温，使用寿命长，给汽车工业带来了很大的便利。

Description

一体成型金属封装汽车火花塞陶瓷喷嘴及其加工工艺
技术领域
本发明属于火花塞陶瓷喷嘴加工工艺，具体为一体成型金属封装汽车火花塞陶瓷喷嘴及其加工工艺。
背景技术
通过设计合理的喷嘴结构及点火方法，可深入研究氢气或可燃烃类在氧气下的燃烧规律，并得到不同参数对燃烧规律的影响。常见的喷嘴结构主要包括互击式、同轴离心式、同轴直流式和双同轴式喷嘴等，常见的点火方式主要包括化学点火、烟火点火、电火花点火、火炬式谐振点火等。常用的点火方式应简单可靠，可多次启动，主要包括电点火、火药点火和火炬式点火几种方式。如参考文献1:孙纪国，王环.高混合比火炬式电点火器试验研究「J}.推进技术，2000, 21 (1) :33-35.中记载了氢氧火箭发动机采用趋向于多次点火、重复启动的火炬式电点火器，火炬式电点火器有较广的工况以及混合比范围，并在国外的氢氧发动机得到了广泛应用，但火炬式电点火器实际上是一个完整的微型前置燃烧室，相应结构设计复杂，点火能量较低，并且对点火时序有较高的要求。在参考文献2:孙不忠，秦子增，张晓今，郭健.微小型固体火箭发动机点火特性试验［J］.国防科技大学学报，2000,22(5) :23-25.中记载了微小型固体火箭发动机对点火过程稳定、点火延迟时间小的要求，采用整体式电发火装置的点火器能够实现点火过程稳定、点火延迟时间小等诸多优点，并且该整体式电发火装置的点火器由电引火头、点火药和点火药盒组成，其中添加部分烟火剂的黑火药具有热敏感度高、点燃特性好等优点，但可能产生较高的初始压强峰，并且该整体式电发火装置的点火器存在无法实现多次点火、重复启动的问题。
现有的火花塞喷嘴大多为金属结构，耐高温性能差，密封性不好，且采用多个构件组成，造成火花塞的性能不佳，容易积碳，容易堵塞，使用寿命短，给汽车工业带来了很大的不便。
发明内容
本发明的目的在于提供一体成型金属封装汽车火花塞陶瓷喷嘴及其加工工艺，解决背景技术中的问题。
本发明采用以下技术方案实现：
一体成型金属封装汽车火花塞陶瓷喷嘴，包括以下重量份百分比的原料：
干粉选材配比：
96%的氧化铝粉末 96-96.9%
氧化镁 1-1.9%
二氧化硅 1.5-1.9%；
金属圈配比：
镍粉：80%
钛粉：8-10%
瓷粉：10-15%。
一体成型金属封装汽车火花塞陶瓷喷嘴加工工艺，包括以下步骤：
第一步：配料：根据干粉选材的配比称取原料，混合均匀；
第二步：磨料：将混合均匀的干粉选材原料加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；
第三步：等静压成型：将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa-250MPa；
第四步：抛光：将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；
第五步：上釉：将车床加工成型后的产品进行上釉处理；
第六步：上镍：在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；
第七步：烧结：将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。
有益效果：本发明工艺简单，制备的火花塞陶瓷喷嘴耐高温，使用寿命长，给汽车工业带来了很大的便利。
附图说明
图1为本发明的工艺流程图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例，进一步阐述本发明。
参见图1，一体成型金属封装汽车火花塞陶瓷喷嘴加工工艺的工艺流程图，一体成型金属封装汽车火花塞陶瓷喷嘴加工工艺，包括以下步骤：配料：根据干粉选材的配比称取原料，混合均匀；磨料：将混合均匀的干粉选材原料加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；等静压成型：将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa-250MPa；抛光：将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；上釉：将车床加工成型后的产品进行上釉处理；上镍：在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；烧结：将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。
实施例1
根据干粉选材的配比称取原料，混合均匀；将混合均匀的干粉选材原料：96%的氧化铝粉末96.3%，氧化镁1.8%，二氧化硅，1.9%；加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa-250MPa；将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；将车床加工成型后的产品进行上釉处理；在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。
实施例2
根据干粉选材的配比称取原料，混合均匀；将混合均匀的干粉选材原料：96%的氧化铝粉末96.6%，氧化镁1.6%，二氧化硅，1.8 %；加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa-250MPa；将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；将车床加工成型后的产品进行上釉处理；在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。
实施例3
根据干粉选材的配比称取原料，混合均匀；将混合均匀的干粉选材原料：96%的氧化铝粉末96.6%，氧化镁1.7%，二氧化硅，1.7%；加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa-250MPa；将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；将车床加工成型后的产品进行上釉处理；在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。
以上显示和描述了本发明的基本原理和主要特征及本发明的优点，本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内，本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (1)

1.一体成型金属封装汽车火花塞陶瓷喷嘴，其特征在于，由以下重量份百分比的原料组成：
干粉选材配比：
96%的氧化铝粉末 96-96.9%
氧化镁 1-1.9%
二氧化硅 1.5-1.9%
各组分之和为100%；
金属圈配比：
镍粉：80%
钛粉：8-10%
瓷粉：10-15%
各组分之和为100%；
所述一体成型金属封装汽车火花塞陶瓷喷嘴加工工艺，包括以下步骤：
第一步：配料：根据干粉选材的配比称取原料，混合均匀；
第二步：磨料：将混合均匀的干粉选材原料加入到磨机中进行磨料，磨料最终产品粒度控制在7μm；
第三步：等静压成型：将磨料最终产品进行等静压成型，控制等静压成型的压强为100MPa-250MPa；
第四步：抛光：将等静压成型的产品外壳进行抛光打磨，并利用车床加工成型；
第五步：上釉：将车床加工成型后的产品进行上釉处理；
第六步：上镍：在上釉处理后的产品头部利用金属圈配比的浆料进行上镍处理；
第七步：烧结：将头部进行上镍处理的产品进行一体烧结，控制烧结温度为1400℃；即得到一体成型金属封装汽车火花塞陶瓷喷嘴。
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