Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of self-lubricating cutter with good thermal conductivity and wide temperature range
The invention relates to a preparation method of a self-lubricating cutter with good thermal conductivity and wide temperature range. The preparation method comprises the specific steps: preparing silicon dioxide wrapped graphene/CaF2 particles, adding the silicon dioxide wrapped graphene/CaF2 particles, TiC, MgO and Al2O3 into ethyl alcohol according to a certain ratio, and carrying out ultrasonic dispersion to obtain a suspension mixture; pouring the suspension mixture into a ball mill, and carrying out ball milling for 36-72 hours; carrying out vacuum drying on the ball-milling liquid until the ball-milling liquid is completely dried; and adding a forming agent into the dried powder, granulating, putting into a mold, carrying out compression molding, carrying out high-temperature sintering, and polishing to obtain the cutter. According to the invention, graphene quantum dots and CaF2 are wrapped by adopting a core-shell structure so as to prevent the CaF2 from growing up to damage the crystal structure of a cutter, the graphene and the CaF2 are compounded together so as to make the cutter have a good self-lubricating effect at different temperatures, and the graphene has good heat-conducting property so as to further prolong the cutting life of the cutter at high temperature.
本申请涉及一种良好导热性宽温域自润滑刀具的制备方法，具体步骤为：制备二氧化硅包裹石墨烯/CaF2颗粒,将二氧化硅包裹石墨烯/CaF2颗粒颗粒、TiC、MgO、Al2O3按照一定比例加入到乙醇当中进行超声分散得到悬浮混合物。将悬浮混合物倒入球磨机中，进行球磨36‑72h。将球磨液进行真空干燥直至完全干燥。将干燥之后的粉末加入成型剂造粒后装入模具中进行压制成型，并将其进行高温烧结，然后进行抛光即得刀具。本申请采用了核壳结构将石墨烯量子点和CaF2包裹起来，防止其CaF2长大破坏刀具的晶体结构，同时，将石墨烯和CaF2复合在一起，让刀具在不同温度都具有良好的自润滑效果，而且石墨烯具有良好的导热性能，可以进一步延长刀具在高温中的切割寿命。
Preparation method of self-lubricating cutter with good thermal conductivity and wide temperature range
The invention relates to a preparation method of a self-lubricating cutter with good thermal conductivity and wide temperature range. The preparation method comprises the specific steps: preparing silicon dioxide wrapped graphene/CaF2 particles, adding the silicon dioxide wrapped graphene/CaF2 particles, TiC, MgO and Al2O3 into ethyl alcohol according to a certain ratio, and carrying out ultrasonic dispersion to obtain a suspension mixture; pouring the suspension mixture into a ball mill, and carrying out ball milling for 36-72 hours; carrying out vacuum drying on the ball-milling liquid until the ball-milling liquid is completely dried; and adding a forming agent into the dried powder, granulating, putting into a mold, carrying out compression molding, carrying out high-temperature sintering, and polishing to obtain the cutter. According to the invention, graphene quantum dots and CaF2 are wrapped by adopting a core-shell structure so as to prevent the CaF2 from growing up to damage the crystal structure of a cutter, the graphene and the CaF2 are compounded together so as to make the cutter have a good self-lubricating effect at different temperatures, and the graphene has good heat-conducting property so as to further prolong the cutting life of the cutter at high temperature.
本申请涉及一种良好导热性宽温域自润滑刀具的制备方法，具体步骤为：制备二氧化硅包裹石墨烯/CaF2颗粒,将二氧化硅包裹石墨烯/CaF2颗粒颗粒、TiC、MgO、Al2O3按照一定比例加入到乙醇当中进行超声分散得到悬浮混合物。将悬浮混合物倒入球磨机中，进行球磨36‑72h。将球磨液进行真空干燥直至完全干燥。将干燥之后的粉末加入成型剂造粒后装入模具中进行压制成型，并将其进行高温烧结，然后进行抛光即得刀具。本申请采用了核壳结构将石墨烯量子点和CaF2包裹起来，防止其CaF2长大破坏刀具的晶体结构，同时，将石墨烯和CaF2复合在一起，让刀具在不同温度都具有良好的自润滑效果，而且石墨烯具有良好的导热性能，可以进一步延长刀具在高温中的切割寿命。
Preparation method of self-lubricating cutter with good thermal conductivity and wide temperature range
一种具有良好导热性宽温域自润滑刀具的制备方法
QIN XUETING (Autor:in)
25.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Repeatable wide-temperature-range self-lubricating composite ceramic and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2020
Preparation method of high-toughness ceramic material for self-lubricating cutter
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2024