Batch preparation method for titanium-based air suction element with high porosity
A high-porosity, mass-produced technology, applied in chemical instruments and methods, other chemical processes, metal processing equipment, etc., can solve the problems of titanium-based non-evaporable getter comprehensive performance and mass production capacity gap, and achieve product stability Good performance, low preparation cost and large surface area
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Embodiment 1
[0027] (1) Under the condition of argon protection, according to the weight ratio of 9:1, the volume ratio of titanium powder with a particle size of 25 μm and an average particle size of 45 μm is 1:1:1:1 Molybdenum powder, zirconium vanadium iron powder , the mixture of zirconium aluminum powder and zirconium nickel powder is mixed for 24h until uniform, and the titanium-based raw material is obtained.
[0028] (2) Under the protection of argon, in parts by weight, 19 parts of titanium-based raw materials and 1 part of ammonium bicarbonate with a particle size of 20 μm are uniformly mixed, and 19 parts of organic binder are added, and mixed for 2 hours in total. Stop for 0.5h for 5 minutes to form injection feed, the organic binder is a mixture of paraffin wax, high-density polyethylene, polypropylene and stearic acid, wherein the mass percentage of paraffin wax is 70%, and the mass percentage of high-density polyethylene is 10% , the mass percentage of polypropylene is 10%, ...
Embodiment 2
[0033] (1) Under the condition of argon protection, according to the weight ratio of 7:3, the volume ratio of titanium powder with a particle size of 45 μm and an average particle size of 45 μm is 1:1:1:1 Molybdenum powder, zirconium vanadium iron powder , the mixture of zirconium aluminum powder and zirconium nickel powder is mixed for 24h until uniform, and the titanium-based raw material is obtained.
[0034] (2) Under the protection of argon, by weight, 4 parts of titanium-based raw materials and 1 part of ammonium bicarbonate with a particle size of 25 μm are uniformly mixed, and 1 part of organic binder is added, and mixed for 2 hours in total. Stop for 0.5h for 5 minutes to form injection feed, the organic binder is a mixture of paraffin wax, high-density polyethylene, polypropylene and stearic acid, wherein the mass percentage of paraffin wax is 70%, and the mass percentage of high-density polyethylene is 10% , the mass percentage of polypropylene is 10%, and the balan...
Embodiment 3
[0039] (1) Under the condition of argon protection, according to the weight ratio of 4:1, the volume ratio of titanium powder with a particle size of 30 μm and an average particle size of 45 μm is 1:1:1:1 Molybdenum powder, zirconium vanadium iron powder , the mixture of zirconium aluminum powder and zirconium nickel powder is mixed for 24h until uniform, and the titanium-based raw material is obtained.
[0040](2) Under argon protection, in parts by weight, mix 1 part of titanium-based raw material with 1 part of ammonium bicarbonate with a particle size of 23 μm, add 1 part of organic binder, and mix for 2 hours in total. Stop for 0.5h for 5 minutes to form injection feeding, the organic binder is a mixture of paraffin wax, high-density polyethylene, polypropylene and stearic acid, wherein the mass percentage of paraffin wax is 40%, and the mass percentage of high-density polyethylene is 20% , the mass percentage of polypropylene is 20%, and the balance is stearic acid.
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