Tool steel powder for 3D printing, tool steel wire material for 3D printing and preparation methods of tool steel powder and tool steel wire material
A tool steel powder, 3D printing technology, used in additive processing and other directions, can solve problems such as lack of
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0033] Such as figure 1 As shown, the present invention provides a method for preparing tool steel powder for 3D printing, combining vacuum air atomization with a tin-lead bath, and setting a lead-tin liquid bath furnace between the atomizing nozzle 2 and the tool steel liquid tundish 1 3. The pressurized gas is ejected through the atomizing nozzle 2, and impacts the tin-lead liquid droplets dripping from the bottom of the lead-tin liquid bath furnace 3, atomizes the tin-lead liquid droplets, and then impacts the tin-lead liquid droplets from the tool The tool steel liquid droplets dripping from the nozzle at the bottom of the molten steel tundish 1 are atomized to obtain the tool steel powder.
[0034] The atomized tool steel powder enters the atomization tower filled with nitrogen to cool, and then enters the classification equipment for sieving. The classified tool steel powder is kept in a constant temperature furnace at 300°C for 5 hours. At this temperature, the tool ste...
Embodiment 1
[0041] 1) The tool steel gas atomization pulverization test was carried out using the tool steel with the composition shown in Table 1. The raw materials are pickled or polished to remove the oxide rust layer on the surface, and cut into small pieces of 30-50cm, put into the vacuum air atomization powder spraying equipment, set the power at 20kw, and heat to ensure that the raw materials are completely melted. When melting, The vacuum induction furnace is vacuumed, and the vacuum degree is 100pa. At the same time, open the tin-lead liquid bath furnace and keep the temperature constant at 250°C.
[0042] Table 1. List of chemical composition of raw materials
[0043] C Ti mn P S co Mo Ni N 0.02 0.6 ≤0.10 ≤0.01 ≤0.01 8.5 4.6 18.0 70ppm
[0044] 2) Pass nitrogen into the gas atomization device. The pressure of the gas atomization nozzle is 6MPa, nitrogen is sprayed out through the nozzle, and the tin-lead liquid bath furnace is turned on ...
example 2
[0052] 1) The tool steel gas atomization pulverization test was carried out using the tool steel with the composition shown in Table 3. The raw materials are pickled or polished to remove the oxide rust layer on the surface, and cut into small pieces of 30-50cm, put into the vacuum atomization powder spraying equipment, set the power at 20kw, heat to ensure that the raw materials are completely melted, when melting, vacuum The induction furnace is vacuumed, and the vacuum degree is 100pa. At the same time, turn on the tin-lead liquid bath furnace and keep the temperature constant at 250°C
[0053] Table 3. List of chemical composition of raw materials
[0054] C Ti mn P S co Mo Ni N 0.03 0.64 ≤0.10 ≤0.01 ≤0.01 8.3 4.8 19.0 65ppm
[0055] 2) Pass nitrogen into the gas atomization device. The pressure of the gas atomization nozzle is 5.5MPa, nitrogen is sprayed out through the nozzle, and the tin-lead liquid bath furnace is turned on at ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More