CN106640071A - 用于掘进机截齿生产的新型金属材料 - Google Patents

用于掘进机截齿生产的新型金属材料 Download PDF

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CN106640071A
CN106640071A CN201610945715.3A CN201610945715A CN106640071A CN 106640071 A CN106640071 A CN 106640071A CN 201610945715 A CN201610945715 A CN 201610945715A CN 106640071 A CN106640071 A CN 106640071A
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pick
carbide
sintering
development machine
green compact
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李保华
王新廷
李孔强
李龙飞
李春超
庄国保
孙东旭
谢果果
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Anhui Aode Mining Machinery Equipment Science & Technology Co Ltd
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Abstract

用于掘进机截齿生产的新型金属材料，涉及截齿生产开发领域，由金刚石、碳化硅、白刚玉、氮化钛、碳化铪、非晶态二氧化硅、氧化钴、碳化硼、硅酸钠、碳化钨、石墨烯、纳米铁粉、碳化铌制备而成。该材料具有硬度高，韧性好，耐磨耐冲击等特点，熔覆在截齿头部可以很好的保护截齿齿体头部，降低头部齿体磨损速度，使齿体与合金头同步磨损，达到最优配合。

Description

用于掘进机截齿生产的新型金属材料
技术领域：
本发明涉及截齿生产开发领域，具体涉及一种用于掘进机截齿生产的新型金属材料。
背景技术：
现有技术中，采煤、掘进截齿是大型采煤机和掘进机上的关键元件，一般采用将硬质合金截齿头与合金钢焊接在一起，其主要应用在煤田的采煤、巷道掘进等采掘领域，随着资源需求的日趋增长，大型采掘机械的使用越来越广泛，因而对掘进截齿的性能提出了更高的要求。
目前，采用的硬质合金截齿头虽然与钢材相比有较好的耐磨性能，但还是不能满足使用寿命的要求，并且由于该种截齿寿命不佳，导致频繁的更换截齿，使得采掘机械的效率不能得到充分发挥，同时，由于截齿柄由合金钢等材料制备而成，从而使截齿柄极不耐磨，使硬质合金截齿头过早的脱落，导致整个截齿提前损毁失效，传统上采用对截齿柄进行热处理或在截齿柄表面堆焊一层耐磨焊条来增加耐磨性，以达到保径目的，效果不明显，特别是在金刚石复合截齿头的出现，它的高耐磨性高寿命使得截齿柄的寿命更需要得到很好的保证。
发明内容：
本发明所要解决的技术问题在于提供一种铸造方便、强度好、寿命长的用于掘进机截齿生产的新型金属材料。
本发明所要解决的技术问题采用以下的技术方案来实现：
用于掘进机截齿生产的新型金属材料，由以下质量分数的组分制备制成：
由以下质量百分比的组分制成：
金刚石60-70％、
碳化硅5-10％、
白刚玉5-10％、
氮化钛5-10％、
碳化铪5-10％、
非晶态二氧化硅0.5-1％、
氧化钴0.2-0.5％、
碳化硼5-10％、
硅酸钠0.1-0.5％、
碳化钨0.1-0.5％、
石墨烯0.05-0.1％、
纳米铁粉0.1-0.5％、
碳化铌0.1-0.5％；
该材料具有硬度高，韧性好，耐磨耐冲击等特点，熔覆在截齿头部可以很好的保护截齿头部，降低头部齿体磨损速度，使齿体与合金头同步磨损，达到最优配合；
采用上述用于掘进机截齿生产的新型金属材料，生产掘进机截齿的方法，包括以下步骤：
1)采用上述金属陶瓷材料混合均匀得到金属陶瓷组合物；
2)将上述金属陶瓷组合物压模得到生坯，在200-350℃的温度下烘烤40-60分钟；
3)将烘烤后的生坯进行无氧条件下等静压烧结，烧结压力为100-400MPa，烧结温度为1600-2000℃；
4)将烧结后的生坯进行研磨，粒度为15～45μm，然后再将金属陶瓷粉末在干燥箱中150℃左右进行烘干；
5)将烘烤后的金属陶瓷粉末与粘结剂搅拌均匀混合成比例为4:1(质量比)的膏状混合物，均匀涂覆在截齿头部，预涂覆粉末厚度为5mm，然后置入干燥箱中80℃以下烘干或自然风干；
6)将预置好的截齿放置到激光器的机床上，进行激光熔覆处理，激光熔覆工艺参数为：功率为1.7～2.0kw，激光扫描速度200～500mm/s，搭接率30％～45％，光斑直径5mm，组织结构分析发现，激光宏观形貌熔覆层平整、致密、无缺陷，熔覆层组织内部致密、无气孔和裂纹等缺陷。
本发明的有益效果是：本发明金属陶瓷材料具有硬度高，韧性好，耐磨耐冲击等特点，熔覆在截齿头部可以很好的保护截齿齿体头部，降低头部齿体磨损速度，使齿体与合金头同步磨损，达到最优配合。
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，下面结合具体示例，进一步阐述本发明。
实施例1：
用于掘进机截齿生产的新型金属材料，由以下质量分数的组分制备制成：
金刚石60-70％、碳化硅5-10％、白刚玉5-10％、氮化钛5-10％、碳化铪5-10％、非晶态二氧化硅0.5-1％、氧化钴0.2-0.5％、碳化硼5-10％、硅酸钠0.1-0.5％、碳化钨0.1-0.5％、石墨烯0.05-0.1％、纳米铁粉0.1-0.5％、碳化铌0.1-0.5％；
使用掘进机截齿生产的新型金属材料生产掘进机截齿的方法，包括以下步骤：
1)将金刚石60％、碳化硅10％、白刚玉5％、氮化钛5％、碳化铪5％、非晶态二氧化硅1％、氧化钴0.5％、碳化硼10％、硅酸钠0.5％、碳化钨0.5％、石墨烯0.1％、纳米铁粉0.1％、碳化铌0.1％金属陶瓷材料混合均匀得到金属陶瓷组合物；
2)将混合后的金属陶瓷组合物压模得到生坯，在350℃的温度下烘烤60分钟；
3)将烘烤后的生坯进行无氧条件下等静压烧结，烧结压力为300MPa，烧结温度为2000℃；
4)将烧结后的生坯进行研磨，粒度为45μm，然后再将金属陶瓷粉末在干燥箱中150℃左右进行烘干；
5)将烘烤后的金属陶瓷粉末与粘结剂搅拌均匀混合成比例为3:1(质量比)的膏状混合物，均匀涂覆在截齿头部，预涂覆粉末厚度为5mm，然后置入干燥箱中80℃以下烘干或自然风干；
6)将预置好的截齿放置到激光器的机床上，进行激光熔覆处理，激光熔覆工艺参数为：功率为1.7～2.0kw，激光扫描速度200～500mm/s，搭接率30％～45％，光斑直径5mm，组织结构分析发现，激光宏观形貌熔覆层平整、致密、无缺陷，熔覆层组织内部致密、无气孔和裂纹等缺陷；
实施例2：
用于掘进机截齿生产的新型金属材料，由以下质量分数的组分制备制成：
金刚石60％、碳化硅5％、白刚玉5％、氮化钛5％、碳化铪5％、非晶态二氧化硅0.5％、氧化钴0.2％、碳化硼5％、硅酸钠0.1％、碳化钨0.1％、石墨烯0.05％、纳米铁粉0.1％、碳化铌0.1％；
使用掘进机截齿生产的新型金属材料生产掘进机截齿的方法，包括以下步骤：
1)采用上述金属陶瓷材料混合均匀得到金属陶瓷组合物；
2)将上述金属陶瓷组合物压模得到生坯，在200℃的温度下烘烤40分钟；
3)将烘烤后的生坯进行无氧条件下等静压烧结，烧结压力为100MPa，烧结温度为1600℃；
4)将烧结后的生坯进行研磨，粒度为15μm，然后再将金属陶瓷粉末在干燥箱中150℃左右进行烘干；
5)将烘烤后的金属陶瓷粉末与粘结剂搅拌均匀混合成比例为3:1(质量比)的膏状混合物，均匀涂覆在截齿头部，预涂覆粉末厚度为5mm，然后置入干燥箱中80℃以下烘干或自然风干；
6)将预置好的截齿放置到激光器的机床上，进行激光熔覆处理，激光熔覆工艺参数为：功率为1.7～2.0kw，激光扫描速度200～500mm/s，搭接率30％～45％，光斑直径5mm，组织结构分析发现，激光宏观形貌熔覆层平整、致密、无缺陷，熔覆层组织内部致密、无气孔和裂纹等缺陷。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。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 (2)

1.用于掘进机截齿生产的新型金属材料，其特征在于：由以下质量分数的组分制备制成：由以下质量百分比的组分制成：
金刚石60-70％、碳化硅5-10％、白刚玉5-10％、氮化钛5-10％、碳化铪5-10％、非晶态二氧化硅0.5-1％、氧化钴0.2-0.5％、碳化硼5-10％、硅酸钠0.1-0.5％、碳化钨0.1-0.5％、石墨烯0.05-0.1％、纳米铁粉0.1-0.5％、碳化铌0.1-0.5％。
2.采用上述用于掘进机截齿生产的新型金属材料，生产掘进机截齿的方法，其特征在于：包括以下步骤：
1)采用上述金属陶瓷材料混合均匀得到金属陶瓷组合物；
2)将上述金属陶瓷组合物压模得到生坯，在200-350℃的温度下烘烤40-60分钟；
3)将烘烤后的生坯进行无氧条件下等静压烧结，烧结压力为100-400MPa，烧结温度为1600-2000℃；
4)将烧结后的生坯进行研磨，粒度为15～45μm，然后再将金属陶瓷粉末在干燥箱中150℃左右进行烘干；
5)将烘烤后的金属陶瓷粉末与粘结剂搅拌均匀混合成比例为4:1(质量比)的膏状混合物，均匀涂覆在截齿头部，预涂覆粉末厚度为5mm，然后置入干燥箱中80℃以下烘干或自然风干即可。
CN201610945715.3A 2016-11-02 2016-11-02 用于掘进机截齿生产的新型金属材料 Pending CN106640071A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111945051A (zh) * 2020-08-21 2020-11-17 盐城市欧特威机械科技有限公司 一种采煤掘进机截齿用双晶硬质合金的制造工艺
CN112267019A (zh) * 2020-10-29 2021-01-26 戴亚洲 一种金属陶瓷复合耐磨材料的制备方法
CN115611562A (zh) * 2022-10-25 2023-01-17 盐城市欧特威机械科技有限公司 一种掘进机截齿用金属陶瓷材料的生产工艺

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111945051A (zh) * 2020-08-21 2020-11-17 盐城市欧特威机械科技有限公司 一种采煤掘进机截齿用双晶硬质合金的制造工艺
CN112267019A (zh) * 2020-10-29 2021-01-26 戴亚洲 一种金属陶瓷复合耐磨材料的制备方法
CN115611562A (zh) * 2022-10-25 2023-01-17 盐城市欧特威机械科技有限公司 一种掘进机截齿用金属陶瓷材料的生产工艺

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