High-performance metal ceramic cladding material and preparation method thereof
A technology of cermets and cladding materials, which is applied in the field of wear resistance and corrosion resistance, can solve the problems of expensive equipment, large investment, and no reports, and achieve the effect of good metallurgical bonding, high bonding strength, and low manufacturing cost
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Embodiment 1
[0026] The raw material composition of the coating of table 1 embodiment 1
[0027]
[0028] The main performance of table 2 embodiment 1 cladding material
[0029]
[0030] The composition of coating materials is shown in Table 1. All the raw materials are mixed according to the ratio in Table 1 to form a mixture and then added to the ball mill tank to form a mixture of 40% dehydrated ethanol and 5% polyethylene glycol in the weight ratio of the above mixture. The liquid is the ball milling medium, the stainless steel ball is the ball, the ball to material ratio is 6:1, and the ball is milled for 12 hours. After the slurry is passed through a 100 mesh sieve, it is brushed on the surface of the purified metal substrate (Q235 steel). After a little drying, it is directly placed Sintering in a vacuum furnace with a heating rate of 4°C / min in the low-temperature stage and 8°C / min in the high-temperature stage. After holding at 1260°C for 30 minutes, it is cooled to room te...
Embodiment 2
[0032] The raw material composition of the cladding of table 3 embodiment 2
[0033]
[0034] Table 4 embodiment 2 main properties of cladding material
[0035]
[0036] The composition of coating materials is shown in Table 3. Each raw material is matched with the ratio in Table 3 to form a mixture and then added to the ball mill tank. The absolute ethanol that accounts for 30% of the above mixture by weight is used as a ball mill medium, and cemented carbide balls are grinding balls. The ball-to-material ratio is 3: 1. Ball milled for 24 hours, the resulting slurry was dried in a vacuum oven at 85°C for 5 hours, passed through a 200-mesh sieve, and pressed into a unidirectional rigid mold with a molding pressure of 350MPa and a holding time of 0.5 minutes, and then the green body was stacked Press it on the surface of the metal substrate coated with PVA glue, and finally sinter the obtained sample in a vacuum furnace. The temperature rise rate is 4.5°C / min in the temp...
Embodiment 3
[0038] The raw material composition of the cladding of table 5 embodiment 3
[0039]
[0040] The main performance of table 6 embodiment 3 cladding material
[0041]
[0042] The composition of coating materials is shown in Table 5. Each raw material is matched with the ratio in Table 5 to form a mixture and then added to the ball mill tank. The absolute ethanol that accounts for 50% of the above mixture by weight is used as a ball mill medium, and cemented carbide balls are grinding balls. The ball-to-material ratio is 4: 1. Ball milled for 24 hours, the resulting slurry was dried in a vacuum oven at 80°C for 8 hours, passed through a 200-mesh sieve, and pressed into a one-way rigid mold with a molding pressure of 400 MPa and a holding time of 2 minutes, and then the green body was stacked Press it on the surface of the metal substrate coated with PVA glue, and finally sinter the obtained sample in a vacuum furnace. The temperature rise rate is 4.5°C / min in the tempera...
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Abstract
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