Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Binding-phase-free WC-based hard alloy and preparation method thereof
The invention discloses a binding-phase-free WC-based hard alloy and a preparation method thereof.The preparation method comprises the following steps that S1, WC powder, Al2O3 powder and ZrO2 (3Y) powder are added into a hard alloy ball milling tank, absolute ethyl alcohol is used as a ball milling medium, the hard alloy ball milling tank containing mixed powder is placed into a planetary ball mill for wet milling, and evenly-mixed slurry is obtained; s2, taking out the hard alloy ball-milling tank filled with the slurry, drying the hard alloy ball-milling tank in a vacuum drying oven, and sieving the hard alloy ball-milling tank after drying; and S3, the powder is placed in a rapid hot pressing sintering furnace, inert atmosphere protection is used, rapid hot pressing sintering is carried out, a blank reaches the preset temperature, then heat preservation is carried out, and the non-binding-phase WC-based hard alloy material with in-situ growth of the Al2O3 columnar crystals and synergistic strengthening and toughening of ZrO2 (3Y) is obtained, the Al2O3 in-situ growth columnar crystals are added into the material, the hardness of the alloy is enhanced, and the hardness of the alloy is improved. And the fracture toughness and the bending strength of the alloy are improved.
本发明公开了一种无粘结相WC基硬质合金及其制备方法，其中制备方法包括如下步骤：S1.将WC粉、Al2O3粉与ZrO2(3Y)粉加入硬质合金球磨罐中，使用无水乙醇作为球磨介质，将装有混合粉末的硬质合金球磨罐置入行星球磨机中进行湿磨，得到混合均匀的浆料；S2.将装有浆料的硬质合金球磨罐取出，置入真空干燥箱中干燥，干燥后过筛；S3.将粉体置于快速热压烧结炉中，使用惰性气氛保护，快速热压烧结使得胚体达到预设温度后保温，得到原位生长A l2O3柱状晶和ZrO2(3Y)协同强韧化的无粘结相WC基硬质合金材料，该材料添加A l2O3原位生长柱状晶，增强合金的硬度，改善合金的断裂韧性和抗弯强度。
Binding-phase-free WC-based hard alloy and preparation method thereof
The invention discloses a binding-phase-free WC-based hard alloy and a preparation method thereof.The preparation method comprises the following steps that S1, WC powder, Al2O3 powder and ZrO2 (3Y) powder are added into a hard alloy ball milling tank, absolute ethyl alcohol is used as a ball milling medium, the hard alloy ball milling tank containing mixed powder is placed into a planetary ball mill for wet milling, and evenly-mixed slurry is obtained; s2, taking out the hard alloy ball-milling tank filled with the slurry, drying the hard alloy ball-milling tank in a vacuum drying oven, and sieving the hard alloy ball-milling tank after drying; and S3, the powder is placed in a rapid hot pressing sintering furnace, inert atmosphere protection is used, rapid hot pressing sintering is carried out, a blank reaches the preset temperature, then heat preservation is carried out, and the non-binding-phase WC-based hard alloy material with in-situ growth of the Al2O3 columnar crystals and synergistic strengthening and toughening of ZrO2 (3Y) is obtained, the Al2O3 in-situ growth columnar crystals are added into the material, the hardness of the alloy is enhanced, and the hardness of the alloy is improved. And the fracture toughness and the bending strength of the alloy are improved.
本发明公开了一种无粘结相WC基硬质合金及其制备方法，其中制备方法包括如下步骤：S1.将WC粉、Al2O3粉与ZrO2(3Y)粉加入硬质合金球磨罐中，使用无水乙醇作为球磨介质，将装有混合粉末的硬质合金球磨罐置入行星球磨机中进行湿磨，得到混合均匀的浆料；S2.将装有浆料的硬质合金球磨罐取出，置入真空干燥箱中干燥，干燥后过筛；S3.将粉体置于快速热压烧结炉中，使用惰性气氛保护，快速热压烧结使得胚体达到预设温度后保温，得到原位生长A l2O3柱状晶和ZrO2(3Y)协同强韧化的无粘结相WC基硬质合金材料，该材料添加A l2O3原位生长柱状晶，增强合金的硬度，改善合金的断裂韧性和抗弯强度。
Binding-phase-free WC-based hard alloy and preparation method thereof
一种无粘结相WC基硬质合金及其制备方法
HE WEN (Autor:in) / TAO SEN (Autor:in) / LIANG BINGLIANG (Autor:in) / CHEN WEIHUA (Autor:in) / OUYANG SHENG (Autor:in) / ZHANG JIANJUN (Autor:in) / HE XIAOYONG (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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