Ultra-high-strength coatable TICN-based cobalt-containing steel-bonded cemented carbide and its preparation method
A steel-bonded cemented carbide and ultra-high-strength technology, which is applied in the field of cobalt-containing and coatable TiCN-based steel-bonded cemented carbide, which can solve the problem that the use requirements of tool materials cannot be met, and the wettability of hard phase and base metal is poor. The high temperature resistance of the matrix can be improved to improve the tempering resistance, improve the sintering activity, and increase the transition temperature.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] This embodiment takes the following technical solutions:
[0033] (1) 27wt.% titanium carbonitride powder, 0.90wt.% carbon powder, 2.0wt.% chromium carbide powder, 2.5wt.% molybdenum carbide powder, 2.0wt.% cobalt powder, 65.57wt .% iron powder and 5% of the total mass of paraffin were added to the stainless steel ball mill tank with a ball-to-material ratio of 5:1 and 100ml of absolute ethanol was added for wet milling and mixing. The speed of the ball mill was set at 250r / min, and the ball milling time was 72h;
[0034] (2) The powder obtained in step (1) is quickly dried in a vacuum drying oven by means of negative pressure drying, the drying temperature is 85 ° C, and the drying time is 4 hours, and then pre-conditioned for a certain time and temperature in a low oxygen partial pressure drying oven. Oxidation, passing through a 40-mesh sieve to sieve and granulate to obtain a mixed powder;
[0035] (3) Press the mixed powder of step (2) on a hydraulic press, the pr...
Embodiment 2
[0040] (1) 30wt.% titanium carbonitride powder, 0.98%wt.% carbon powder, 3wt.% chromium carbide powder, 3wt.% molybdenum carbide powder, 5.0wt.% cobalt powder, 58.02wt. The remaining iron powder and 5% of the total mass of paraffin were added to the stainless steel ball mill tank, the ball to material ratio was 6:1, and 100ml of absolute ethanol was added for wet milling and mixing. The speed of the ball mill was set at 300r / min, and the ball milling time was 80h ;
[0041] (2) The powder obtained in step (1) is quickly dried in a vacuum drying oven by means of negative pressure drying, the drying temperature is 85 ° C, and the drying time is 4.5 hours, and then it is dried for a certain time and temperature in a low oxygen partial pressure drying oven. Preoxidation, passing through a 40-mesh sieve and granulating to obtain mixed powder;
[0042] (3) Press the mixed powder of step (2) on a hydraulic press, the pressure is 150Mpa, the pressure is increased slowly, and the pres...
Embodiment 3
[0047] (1) 32wt.% titanium carbonitride powder, 1.1%wt.% carbon powder, 2.8wt.% chromium carbide powder, 3.5wt.% molybdenum carbide powder, 7.0wt.% cobalt powder, 53.6 The balance of wt.% iron powder and 5% of the total mass of paraffin were added to the stainless steel ball mill tank, the ratio of ball to material was 5:1, and 100ml of absolute ethanol was added for wet grinding and mixing. The speed of the ball mill was set at 280r / min, and the ball mill Time 96h;
[0048] (2) The powder obtained in step (1) is quickly dried in a vacuum drying oven by means of negative pressure drying, the drying temperature is 80 ° C, and the drying time is 4 hours, and then pre-conditioned for a certain time and temperature in a low oxygen partial pressure drying oven. Oxidation, passing through a 40-mesh sieve to sieve and granulate to obtain a mixed powder;
[0049] (3) Press the mixed powder of step (2) on a hydraulic press, the pressure is 100Mpa, the pressure is increased slowly, and...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More