Preparation method of TiC high-alloy hot work die steel based steel bond hard alloy
A technology of steel-bonded hard alloy and hot work die steel, which is applied in the field of metal matrix composite material preparation, to achieve the effects of uniformity and compactness of the structure, uniform pore size distribution, and short forming cycle
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[0025] Example 1: Weigh 50% TiC powder and 0.10% Ce, 0.05% Nb, 0.1% SiMgRe, 0.3% graphite powder, 5% carbonyl iron powder, 3Cr2W8V high alloy hot work die steel matrix raw material powder, and The powder, rare earth, and Nb powder are put into a ball mill for mixing and crushing, wherein anhydrous ethanol is added as a process control agent, and the wet mixed powder is put into a vacuum drying box for drying, and then dried for use; according to a volume ratio of 1:1 Measure the organic monomer hydroxyethyl acrylate and solvent toluene to prepare a premix. Add 1.2 g / 100 ml of benzoyl peroxide to the premix and stir evenly; add the dry mixed powder to the premix and add dropwise at the same time 2% oleic acid and stir evenly to form a slurry; add 0.15% of dimethylaniline to the slurry and add ammonia to adjust the pH to 7; use vacuum to remove bubbles and put the green body into a vacuum sintering furnace The process of degumming and final sintering is as follows: degumming at 5...
Example Embodiment
[0026] Example 2: Weigh 60% TiC powder and 0.2% Ce, 0.2% Nb, 0.25% SiMgRe, 0.4% graphite powder, 7% carbonyl iron powder, 5Cr4Mo3SiMnVAl high alloy hot work die steel matrix raw material powder, and The powder, rare earth, and Nb powder are put into a ball mill for mixing and crushing, wherein anhydrous ethanol is added as a process control agent, and the wet mixed powder is put into a vacuum drying box for drying, and then dried for use; according to a volume ratio of 1:2 Measure the organic monomer hydroxyethyl acrylate and solvent toluene to prepare a premix, add 0.6 g / 100 ml of benzoyl peroxide to the premix and stir evenly; add the dry mixed powder to the premix and add dropwise at the same time 1% oleic acid and stir evenly to form a slurry; add 0.1% dimethylaniline to the slurry and add ammonia to adjust the pH to 7.5; use vacuum to remove bubbles and put the green body into a vacuum low-pressure sintering furnace For degumming and final sintering, the process is: degumm...
Example Embodiment
[0027] Example 3: Weigh 40% TiC powder and 0.25% Ce, 0.25% Nb, 0.3% SiMgRe, 0.5% graphite powder, 8% carbonyl iron powder, 4Cr4W5Mo2V high alloy hot work die steel matrix raw material powder, and The powder, rare earth, and Nb powder are put into a ball mill for mixing and crushing, wherein anhydrous ethanol is added as a process control agent, and the wet mixed powder is put into a vacuum drying box for drying, and dried for use; according to a volume ratio of 2:1 Measure the organic monomer hydroxyethyl acrylate and solvent toluene to prepare a premix. Add 1.5 g / 100 ml of benzoyl peroxide to the premix and stir evenly; add the dry mixed powder to the premix and add dropwise at the same time 3% oleic acid and stir evenly to form a slurry; add 0.2% dimethylaniline to the slurry and add ammonia to adjust the pH to 8; use vacuum to remove bubbles and put the green body into a vacuum low-pressure sintering furnace For degumming and final sintering, the process is: degumming at 400...
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