CN106699211A - 一种提升汽车封盖件模具强度的热喷涂涂料 - Google Patents

一种提升汽车封盖件模具强度的热喷涂涂料 Download PDF

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CN106699211A
CN106699211A CN201611230694.3A CN201611230694A CN106699211A CN 106699211 A CN106699211 A CN 106699211A CN 201611230694 A CN201611230694 A CN 201611230694A CN 106699211 A CN106699211 A CN 106699211A
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陈坦和
陈明祥
于初宏
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Landtek Re-Manufacturing Technology Co Ltd Of Ma'an Mountain
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Abstract

本发明公开了一种提升汽车封盖件模具强度的热喷涂涂料，属于机械加工技术领域，具体由下列物质制成：氧化铝、氧化锆、氧化镁、氧化铈、红柱石、石榴石、六钛酸钾晶须、粘结剂。本发明制得的涂料强度较高，能有效改善模具的使用特性，延长其使用质量，有很好的使用价值。

Description

一种提升汽车封盖件模具强度的热喷涂涂料
技术领域
本发明属于机械加工技术领域，具体涉及一种提升汽车封盖件模具强度的热喷涂涂料。
背景技术
汽车加工制造中封盖件较多，如汽车油封盖、汽车缸封盖等，此类部件的加工通常由模具挤塑或铸造完成，因此模具在汽车加工中所占的地位举足轻重。模具在长期的反复生产使用后，其表面特性不断下降，如强度特性、耐腐特性、耐温特性等，进而导致了模具制造件品质的下降，因此如何改善模具性能，延长其使用寿命是本领域技术人员不断研究的问题之一。
热喷涂技术是一种应用广泛的表面涂层技术，能够制备金属、合金、陶瓷以及各种复合材料涂层。氧化物陶瓷涂层由于其良好的绝缘、抗磨损、耐腐蚀和高温隔热性能，在航空航天、冶金机械、石油化工、微电子等领域得到较好的应用。但热喷涂技术的特性决定了由该技术制成的涂层呈现出多孔的板条层状结构，而饼状的板条层、未熔化的颗粒、孔隙和微裂纹等大量缺陷的存在使得热喷涂涂层的性能仍达不到人们理想的标准。
发明内容
本发明旨在提供一种提升汽车封盖件模具强度的热喷涂涂料。
本发明通过以下技术方案来实现：
一种提升汽车封盖件模具强度的热喷涂涂料，由如下重量份的物质制成：
60~70份氧化铝、20~25份氧化锆、10~15份氧化镁、6~10份氧化铈、5~8份红柱石、3~6份石榴石、4~7份六钛酸钾晶须、12~15份粘结剂。
优选的，由如下重量份的物质制成：
65份氧化铝、23份氧化锆、12份氧化镁、8份氧化铈、7份红柱石、5份石榴石、6份六钛酸钾晶须、14份粘结剂。
进一步的，所述六钛酸钾晶须的长度不大于15μm。
进一步的，所述粘结剂为磷酸二氢铝。
一种提升汽车封盖件模具强度的热喷涂涂料的制备方法，包括如下步骤：
（1）先将红柱石和石榴石混合放入质量分数为5%的磷酸溶液中浸泡处理20~ 25min，取出后用去离子水冲洗干净后备用；
（2）将步骤（1）处理后的红柱石和石榴石放入温度为420~450℃的条件下煅烧处理50~55min后取出备用；
（3）将步骤（2）处理后的红柱石、石榴石同氧化铝、氧化锆、氧化镁、氧化铈混合，进行球磨粉碎处理，按颗粒大小分为A、B两种颗粒，其中A颗粒的粒径大小为35~45μm，B颗粒的粒径大小为5~15μm，所述A、B两种颗粒的质量比为8~9：1，最后将两种颗粒混合均匀得混合粉料备用；
（4）将步骤（3）所得的混合粉料与六钛酸钾晶须、粘结剂充分混合均匀后即可。
本发明具有如下有益效果：
本发明在以氧化铝为涂料基体的基础上，对应添加了氧化锆、氧化镁、氧化铈成分，有效提升了热喷涂后形成涂层的综合特性，可相互融合交联成更为复杂、致密的膜层结构，改善了涂层的粘附性和表面强度，添加的红柱石和石榴石能有效阻止涂层横向截面收缩，起到了增韧的效果，添加的六钛酸钾晶须能有效提升涂层各部位的结合强度，进一步增强了其致密性和强度，将不同成分混合后按规定比例粉碎混合成对应等级的颗粒后，很好保证了涂料整体的熔融特性和流动性，降低了粗粉末不熔、细粉末过早熔化的问题，同时粗细粉末相熔层叠堆积出更为致密的涂层，降低了板条层、未熔化颗粒、孔隙和微裂纹等缺陷的发生率，改善了涂层的强度等特性。最终在各物质成分的共同配合作用下，本发明制得的涂料强度较高，能有效改善模具的使用特性，延长其使用质量，有很好的使用价值。
具体实施方式
实施例1
一种提升汽车封盖件模具强度的热喷涂涂料，由如下重量份的物质制成：
60份氧化铝、20份氧化锆、10份氧化镁、6份氧化铈、5份红柱石、3份石榴石、4份六钛酸钾晶须、12份粘结剂。
进一步的，所述六钛酸钾晶须的长度不大于15μm。
进一步的，所述粘结剂为磷酸二氢铝。
一种提升汽车封盖件模具强度的热喷涂涂料的制备方法，包括如下步骤：
（1）先将红柱石和石榴石混合放入质量分数为5%的磷酸溶液中浸泡处理23min，取出后用去离子水冲洗干净后备用；
（2）将步骤（1）处理后的红柱石和石榴石放入温度为440℃的条件下煅烧处理52min后取出备用；
（3）将步骤（2）处理后的红柱石、石榴石同氧化铝、氧化锆、氧化镁、氧化铈混合，进行球磨粉碎处理，按颗粒大小分为A、B两种颗粒，其中A颗粒的粒径大小为35~45μm，B颗粒的粒径大小为5~15μm，所述A、B两种颗粒的质量比为9：1，最后将两种颗粒混合均匀得混合粉料备用；
（4）将步骤（3）所得的混合粉料与六钛酸钾晶须、粘结剂充分混合均匀后即可。
实施例2
一种提升汽车封盖件模具强度的热喷涂涂料，由如下重量份的物质制成：
65份氧化铝、23份氧化锆、12份氧化镁、8份氧化铈、7份红柱石、5份石榴石、6份六钛酸钾晶须、14份粘结剂。其余方法步骤同实施例1。
实施例3
一种提升汽车封盖件模具强度的热喷涂涂料，由如下重量份的物质制成：
70份氧化铝、25份氧化锆、15份氧化镁、10份氧化铈、8份红柱石、6份石榴石、7份六钛酸钾晶须、15份粘结剂。其余方法步骤同实施例1。
对比实施例1
本对比实施例1与实施例1相比，其成分中不含有红柱石和石榴石，除此外的方法步骤均相同。
对比实施例2
本对比实施例2与实施例2相比，在制备步骤（3）中，不进行特殊的粉碎处理，直接将其随机的粉碎成20~80μm的常规粒径大小，除此外的方法步骤均相同。
对比实施例3
本对比实施例3与实施例3相比，其成分中不含有六钛酸钾晶须，除此外的方法步骤均相同。
对照组
现有常用的热喷涂用氧化锌陶瓷涂料。
为了对比本发明效果，对上述七种方式制得的涂料进行性能测试，具体对比数据如下表1所示：
表1
注：上表1中所述的抗弯强度参照GB/T5593进行测试；所述的抗拉强度参照GB775.3进行测试。
由上表1可以看出，本发明制得的涂料具有良好的综合性能，可有效增强模具的强度和使用寿命。

Claims (5)

1.一种提升汽车封盖件模具强度的热喷涂涂料，其特征在于，由如下重量份的物质制成：
60~70份氧化铝、20~25份氧化锆、10~15份氧化镁、6~10份氧化铈、5~8份红柱石、3~6份石榴石、4~7份六钛酸钾晶须、12~15份粘结剂。
2.根据权利要求1所述的一种提升汽车封盖件模具强度的热喷涂涂料，其特征在于，由如下重量份的物质制成：
65份氧化铝、23份氧化锆、12份氧化镁、8份氧化铈、7份红柱石、5份石榴石、6份六钛酸钾晶须、14份粘结剂。
3.根据权利要求1或2所述的一种提升汽车封盖件模具强度的热喷涂涂料，其特征在于，所述六钛酸钾晶须的长度不大于15μm。
4.根据权利要求1或2所述的一种提升汽车封盖件模具强度的热喷涂涂料，其特征在于，所述粘结剂为磷酸二氢铝。
5.一种如权利要求1或2所述的提升汽车封盖件模具强度的热喷涂涂料的制备方法，其特征在于，包括如下步骤：
（1）先将红柱石和石榴石混合放入质量分数为5%的磷酸溶液中浸泡处理20~ 25min，取出后用去离子水冲洗干净后备用；
（2）将步骤（1）处理后的红柱石和石榴石放入温度为420~450℃的条件下煅烧处理50~55min后取出备用；
（3）将步骤（2）处理后的红柱石、石榴石同氧化铝、氧化锆、氧化镁、氧化铈混合，进行球磨粉碎处理，按颗粒大小分为A、B两种颗粒，其中A颗粒的粒径大小为35~45μm，B颗粒的粒径大小为5~15μm，所述A、B两种颗粒的质量比为8~9：1，最后将两种颗粒混合均匀得混合粉料备用；
（4）将步骤（3）所得的混合粉料与六钛酸钾晶须、粘结剂充分混合均匀后即可。
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