Fe/Ni-based carbide alloy coating cutter material for cutting rolled steel and preparation thereof
A technology of cemented carbide and cemented carbide substrate, which is applied in the direction of cutting tools for lathes, metal material coating technology, coating, etc., can solve problems such as limitations, and achieve the effect of reducing thermal stress, fine structure, and good plasticity
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example 1
[0032] Example 1: batching according to the following scheme: 2.15 μm carbonyl Fe powder accounts for 6.9wt%; 2.45 μm carbonyl Ni powder accounts for wt2.3%; 2.25 μm WC: TiC=50: 50 (Ti, W) C solid solution accounts for 12.4%, the rest for WC. Mix accurately weighed various carbides and metal powders, and grind them in a drum-type wet mill. The wet grinding medium is absolute ethanol, and the grinding balls are WC-8wt% Co cemented carbide balls; the grinding speed is 56r / min , the grinding time is 48h, the diameter of the grinding ball is 10mm, and the ratio of ball to material is 5:1. After wet grinding, after precipitation and drying, 12wt% SD rubber molding agent is added. The addition amount of forming agent is 80ml / Kg, and it is pressed into TNMG160408 blade after sieving, and the pressing pressure is 300-400MPa. Sintering in a vacuum sintering furnace, degumming is carried out at a vacuum degree higher than 10-15Pa, and kept at 400°C-500°C for 2-4h; the sintering vacuum ...
example 2
[0034] Example 2: batching according to the following scheme: 2.15 μm carbonyl Fe powder accounts for 4.5wt%; 2.45 μm carbonyl Ni powder accounts for wt1.5%; 2.25 μm WC: TiC=50: 50 (Ti, W) C solid solution accounts for 30%, the rest for WC. Mix accurately weighed various carbides and metal powders, and grind them in a drum-type wet mill. The wet grinding medium is absolute ethanol, and the grinding balls are WC-8wt% Co cemented carbide balls; the grinding speed is 56r / min , the grinding time is 48h, the diameter of the grinding ball is 10mm, and the ratio of ball to material is 5:1. After wet grinding, after precipitation and drying, 12wt% SD rubber molding agent is added. The addition amount of forming agent is 80ml / Kg, and it is pressed into TNMG160408 blade after sieving, and the pressing pressure is 300-400MPa. Sintering in a vacuum sintering furnace, degumming is carried out at a vacuum degree higher than 10-15Pa, and kept at 400°C-500°C for 2-4h; the sintering vacuum de...
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