CN111101028A - 机体铝铸支座 - Google Patents

机体铝铸支座 Download PDF

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Publication number
CN111101028A
CN111101028A CN201911388363.6A CN201911388363A CN111101028A CN 111101028 A CN111101028 A CN 111101028A CN 201911388363 A CN201911388363 A CN 201911388363A CN 111101028 A CN111101028 A CN 111101028A
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machine body
sic
support
aluminum
temperature
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华吉
华胜
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Ningbo Jisheng Casting Co ltd
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Ningbo Jisheng Casting Co ltd
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Priority to CN201911388363.6A priority Critical patent/CN111101028A/zh
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129—Flame spraying

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

本发明属于机械领域，具体涉及一种机体铝铸支座，使用铝合金制成，铝合金的制备过程为，将SiC酸洗后用清水冲洗至中性，然后烘干，用纯铝箔包裹放入到熔炼炉底部，将融化后的滤液浇入到熔炼炉中，将温度控制在600～630℃并保温，保温过程中进行电磁搅拌，保温2～3h后，以150～160℃/min的速率降温，然后制成机体铝铸支座的形状，将表面打磨并清洗干净后，喷砂，然后使用超音速火焰喷涂制成机体铝铸支座。制备出来的机体支座力学强度高，同时表面有一层致密的膜层，能够减少恶劣工作环境下对支座表面的损害，提高耐磨性，增加使用寿命，具有较好的实用价值。

Description

机体铝铸支座
技术领域
本发明属于汽车行业领域，属于机械技术领域，具体地涉及一种机体铝铸支座。
背景技术
在现有技术中，机体支座作为一种重要的部件，在汽车行业中具有重要的作用，机体支座在工作过程中工作环境比较恶劣，需要具有较强的力学性能，同时，机体支座的表面经常会遭遇摩擦和剐蹭，这就要求机体支座的表面具有较强的耐磨性能，但是目前的集体制作一般使用普通的铝制或合金制成，表面较容易损坏，而且力学疲劳下，也容易发生断裂。
发明内容
为了解决上述问题，本发明提供一种机体铝铸支座，具有力学强度高，表面耐磨的特点。
本发明提供的方案为：
机体铝铸支座，使用铝合金制成，其特征在于：铝合金的制备过程为，将SiC酸洗后用清水冲洗至中性，然后烘干，用纯铝箔包裹放入到熔炼炉底部，将融化后的滤液浇入到熔炼炉中，将温度控制在600～630℃并保温，保温过程中进行电磁搅拌，保温2～3h后，以150～160℃/min的速率降温，然后制成机体铝铸支座的形状，将表面打磨并清洗干净后，喷砂，然后使用超音速火焰喷涂制成机体铝铸支座。电磁搅拌可以打碎铝合金液中的枝晶状组织，有利于制成复合金属材料。
进一步地，所述SiC的粒径为30～50μm。
进一步地，所述SiC的酸洗过程中，使用超声波振动，振动频率为30～50KHz。有机物等杂质和水分、气体会吸附在颗粒表面上，这些都会影响碳化硅颗粒与铝基体之间的润湿，造成碳化硅颗粒在铝合金液中不容易分散，从而会使复合材料孔洞缺陷变严重。碳化硅颗粒表面的各种杂质还会与铝合金液发生反应引起有害的界面反应，碳化硅颗粒与铝基体之间的结合状态会变差，结合强度降低。
进一步地，喷砂至表面粗糙度至Ra为0.08～0.1μm。表面粗糙度过大时，由于在火焰喷涂会使表面粗糙度加大，造成喷涂效果不好，粗糙度过低，会造成喷涂层结合力不强，容易脱落。
进一步地，所述喷涂的喷涂材料为碳化钨和钴、铬的复合材料。
进一步地，所述碳化钨和钴、铬的复合材料中，碳化钨和钴、铬的摩尔比为1：8：3。
进一步地，喷涂的喷涂材料的粒度为15～20μm。
本发明的优点为：制备出来的机体支座力学强度高，同时表面有一层致密的膜层，能够减少恶劣工作环境下对支座表面的损害，提高耐磨性，增加使用寿命，具有较好的实用价值。
具体实施方式
实施例1
机体铝铸支座，使用铝合金制成，铝合金的制备过程为，将SiC酸洗后用清水冲洗至中性，然后烘干，所述SiC的粒径为30μm，SiC的酸洗过程中，使用超声波振动，振动频率为30KHz。用纯铝箔包裹放入到熔炼炉底部，将融化后的滤液浇入到熔炼炉中，将温度控制在600℃并保温，保温过程中进行电磁搅拌，保温2h后，以150℃/min的速率降温，然后制成机体铝铸支座的形状，将表面打磨并清洗干净后，喷砂至表面粗糙度至Ra为0.08μm，然后使用超音速火焰喷涂制成机体铝铸支座，喷涂的喷涂材料为碳化钨和钴、铬的复合材料，碳化钨和钴、铬的摩尔比为1：8：3，喷涂材料的粒度为15μm。
实施例2
本实施例与实施例1的区别为SiC的粒径为50μm。
实施例3
本实施例与实施例1的区别为超声波振动，振动频率为50KHz。
实施例4
本实施例与实施例1的区别为喷砂至表面粗糙度至Ra为0.1μm。
实施例5
本实施例与实施例1的区别为喷涂材料的粒度为20μm。
对比例1
本实施例与实施例1的区别为SiC的粒径为80μm。
对比例2
本实施例与实施例1的区别为SiC不经过酸洗。
对比例3
本实施例与实施例1的区别为酸洗过程中不使用超声波振动。
对比例4
本实施例与实施例1的区别为喷砂至表面粗糙度至Ra为0.2μm。
对比例5
本实施例与实施例1的区别为喷砂至表面粗糙度至Ra为0.03μm。
通过对实施例和对比例的性能测试，实施例制备出的机体支座具有更好的拉伸和抗弯抗折性能，而且在同等抗磨实验中，实施例中制备的产品具有更优异的耐磨性能。
最后所应说明的是，以上具体实施方式仅用以说明本发明的技术方案而非限制，尽管参照实例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (7)

1.机体铝铸支座，使用铝合金制成，其特征在于：铝合金的制备过程为，将SiC酸洗后用清水冲洗至中性，然后烘干，用纯铝箔包裹放入到熔炼炉底部，将融化后的滤液浇入到熔炼炉中，将温度控制在600～630℃并保温，保温过程中进行电磁搅拌，保温2～3h后，以150～160℃/min的速率降温，然后制成机体铝铸支座的形状，将表面打磨并清洗干净后，喷砂，然后使用超音速火焰喷涂制成机体铝铸支座。
2.根据权利要求1所述的一种机体铝铸支座，其特征在于：所述SiC的粒径为30～50μm。
3.根据权利要求1所述的一种机体铝铸支座，其特征在于：所述SiC的酸洗过程中，使用超声波振动，振动频率为30～50KHz。
4.根据权利要求1所述的一种机体铝铸支座，其特征在于：喷砂至表面粗糙度至Ra为0.08～0.1μm。
5.根据权利要求1所述的一种，其特征在于：所述喷涂的喷涂材料为碳化钨和钴、铬的复合材料。
6.根据权利要求5所述的一种机体铝铸支座，其特征在于：所述碳化钨和钴、铬的复合材料中，碳化钨和钴、铬的摩尔比为1：8：3。
7.根据权利要求5所述的一种机体铝铸支座，其特征在于：喷涂的喷涂材料的粒度为15～20μm。
CN201911388363.6A 2019-12-27 2019-12-27 机体铝铸支座 Pending CN111101028A (zh)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1381604A (zh) * 2001-04-13 2002-11-27 中国科学院金属研究所 液态法制备颗粒增强铝基复合材料时浆体中颗粒的加入法
CN102703771A (zh) * 2012-06-17 2012-10-03 山东正诺机械科技有限公司 刹车盘用碳化硅／铝合金复合材料的制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1381604A (zh) * 2001-04-13 2002-11-27 中国科学院金属研究所 液态法制备颗粒增强铝基复合材料时浆体中颗粒的加入法
CN102703771A (zh) * 2012-06-17 2012-10-03 山东正诺机械科技有限公司 刹车盘用碳化硅／铝合金复合材料的制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王海军: "《热喷涂材料及应用》", 31 March 2008, 国防工业出版社 *

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