Method for preparing hard alloy zinc molten material bar
A cemented carbide and zinc melting technology, which is applied to other manufacturing equipment/tools, mechanical equipment, turbines, etc., can solve the problems of cemented carbide quality degradation, hardness reduction, and low product density, and achieve low cost and easy control , excellent performance
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Embodiment 1
[0019] As a specific embodiment, a method for preparing a cemented carbide zinc melt bar includes the following steps:
[0020] Mixture wet grinding processing: use zinc fusion carbide (WC) tungsten powder with an average particle size of less than 0.8um, cobalt (Co) powder with an average particle size of less than 2um, and carbon (C) powder with an average particle size of less than 400nm, among which cobalt (Co) powder It accounts for 10% of the total raw materials; carbon (C) powder accounts for 5.6% of the total raw materials. The above-mentioned raw materials use anhydrous alcohol (purity above 99.99%) as the medium, and the wet grinding process is used to match the quality of the alloy balls with the total raw materials. The ratio is 6:1; the ratio of anhydrous alcohol to the total raw materials is 300ml / kg; the wet grinding time is 60 hours; the wet-milled mixture is sieved with a 50-mesh vibrating screen,
[0021] Drying: add the mixture of the previous process to the diss...
Embodiment 2
[0026] As a specific embodiment, a method for preparing a cemented carbide zinc melt bar includes the following steps:
[0027] Mixture wet grinding processing: use zinc fusion carbide (WC) tungsten powder with an average particle size of less than 0.8um, cobalt (Co) powder with an average particle size of less than 2um, and carbon (C) powder with an average particle size of less than 400nm, among which cobalt (Co) powder It accounts for 15% of the total raw materials; carbon (C) powder accounts for 6.6% of the total raw materials. The above raw materials use anhydrous alcohol (purity above 99.99%) as the medium, and the wet grinding process is used to match the quality of the alloy balls with the total raw materials. The ratio is 6:1; the ratio of anhydrous alcohol to the total raw materials is 300ml / kg; the wet grinding time is 80 hours; the wet-milled mixture is sieved with a 50-mesh vibrating screen,
[0028] Drying: add the mixture of the previous process to the dissolved 52° ...
Embodiment 3
[0033] As a specific embodiment, a method for preparing a cemented carbide zinc melt bar includes the following steps:
[0034] Mixture wet grinding processing: use zinc fusion carbide (WC) tungsten powder with an average particle size of less than 0.8um, cobalt (Co) powder with an average particle size of less than 2um, and carbon (C) powder with an average particle size of less than 400nm, among which cobalt (Co) powder Accounting for 13% of the total raw materials; carbon (C) powder accounted for 5.6%-6.6% of the total raw materials, using anhydrous alcohol (above 99.99% purity) as the medium for the above raw materials, using wet grinding technology, alloy balls and total raw materials The mass ratio is 6:1; the ratio of anhydrous alcohol to the total raw materials is 300ml / kg; the wet milling time is 70 hours; the wet milled mixture is sieved with a 50-mesh vibrating screen,
[0035] Drying: add the mixture of the previous process to the dissolved 52° paraffin, add the paraffi...
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Abstract
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