Preparation method of rare earth oxide doped high temperature oxidation resisting and abrasion resisting coating for H13 steel surface protecting
A rare earth oxide, anti-high temperature oxidation technology, applied in coating, metal material coating process, fusion spraying, etc., can solve problems such as mold deformation, mold failure, environmental pollution, etc., to improve service life and improve bonding strength and toughness, the effect of reducing production costs
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Embodiment 1
[0032] This embodiment provides a high-temperature oxidation-resistant and wear-resistant coating doped with rare earth oxides for surface strengthening of H13 steel, which is made of nano-CeO 2 powder doped Cr 3 C 2 -NiCr composite powder prepared. The composite powder consists of 98wt% Cr 3 C 2 -NiCr and 2wt% nano CeO 2 Prepared by high-energy ball milling, where Cr 3 C 2 - The composition of the NiCr composite powder is 19-21wt% Ni, 9.1-10.1wt% C, 68.9-71.9wt% Cr, and the balance is O. Cr 3 C 2 - The particle size of the NiCr composite powder is 15-45 μm. nano-CeO 2 The powder purity is 99.99%, and the particle size is 5-20nm.
[0033] The preparation steps are as follows:
[0034] (1) The surface of the H13 steel was cleaned ultrasonically with acetone, and then roughened by sandblasting with 24# white corundum. The surface roughness after sandblasting was Ra3.6μm.
[0035](2) Add the prepared powder into the high-efficiency mixer for pre-mixing for 1 hour, an...
Embodiment 2
[0039] This embodiment provides a high-temperature oxidation-resistant and wear-resistant coating doped with rare earth oxides for surface strengthening of H13 steel, which is made of nano-CeO 2 powder doped Cr 3 C 2 -NiCr composite powder prepared. The composite powder consists of 96wt% Cr 3 C 2 -NiCr and 4wt% nano CeO 2 Prepared by high-energy ball milling, where Cr 3 C 2 - The composition of the NiCr composite powder is 19-21wt% Ni, 9.1-10.1wt% C, 68.9-71.9wt% Cr, and the balance is O. Cr 3 C 2 - The particle size of the NiCr composite powder is 15-45 μm. nano-CeO 2 The powder purity is 99.99%, and the particle size is 5-20nm.
[0040] The preparation steps are as follows:
[0041] (1) The surface of the H13 steel was cleaned ultrasonically with acetone, and then roughened by sandblasting with 24# white corundum. The surface roughness after sandblasting was Ra3.6μm.
[0042] (2) The prepared powder is added to the high-efficiency mixer for pre-mixing for 3 hour...
Embodiment 3
[0046] This embodiment provides a high-temperature oxidation-resistant and wear-resistant coating doped with rare earth oxides for surface strengthening of H13 steel, which is made of nano-CeO 2 powder doped Cr 3 C 2 -NiCr composite powder prepared. The composite powder consists of 94wt% Cr 3 C 2 -NiCr and 6wt% nano CeO 2 Prepared by high-energy ball milling, where Cr 3 C 2 - The composition of the NiCr composite powder is 19-21wt% Ni, 9.1-10.1wt% C, 68.9-71.9wt%, and the balance is O. Cr 3 C 2 - The particle size of the NiCr composite powder is 15-45 μm. nano-CeO 2 The powder purity is 99.99%, and the particle size is 5-20nm.
[0047] The preparation steps are as follows:
[0048] (1) The surface of the H13 steel was cleaned ultrasonically with acetone, and then roughened by sandblasting with 24# white corundum. The surface roughness after sandblasting was Ra3.6μm.
[0049] (2) Add the prepared powder into the high-efficiency mixer for pre-mixing for 2 hours, and...
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