FIELD: metallurgy.
SUBSTANCE: invention relates to powder metallurgy. Method of sintered bars from heavy alloys based on tungsten involves preparing mixture of powders containing 90-98 wt% of tungsten, rest is nickel, iron and cobalt, pressing in rigid female die, extrusion powder of matrix with subsequent sintering. Before pressing extraction from mould pressing is heat treated at 800-1,000 °C for 1-2 hours with cooling in die mold.
EFFECT: production of qualitative blanks without cracks and bundles.
1 cl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MAKING COMPLEX FIGURE THIN-WALLED SINTERED BARS FROM HEAVY ALLOYS BASED ON TUNGSTEN | 2006 |
|
RU2332279C2 |
| METHOD FOR PRODUCING HIGH-DENSITY PRESS WORKPIECES WITH DISPERSED GRAINS IN POWDER METALLURGY OF METAL-CERAMIC, MINERAL-CERAMIC AND REFRACTORY ALLOYS | 2020 |
|
RU2746657C1 |
| METHOD OF PRODUCING SINTERED POROUS ARTICLES FROM TUNGSTEN-BASE PSEUDOALLOY | 2010 |
|
RU2444418C1 |
| METHOD OF PRODUCING SINTERED POROUS TUNGSTEN-BASED ARTICLES | 2009 |
|
RU2414329C1 |
| METHOD OF MANUFACTURE OF SINTERED POROUS PRODUCTS FROM TUNGSTEN-BASED PSEUDOALLOY | 2016 |
|
RU2623566C1 |
| CHARGE FOR SINTERING IRON-BASE COMPOSITE MATERIAL | 0 |
|
SU1747243A1 |
| MULTILAYER CARBIDE PLATE AND METHOD FOR ITS PRODUCTION | 2020 |
|
RU2749734C1 |
| MANUFACTURING METHOD OF HARD ALLOY WITH CONTROL OF DISTRIBUTION AND QUANTITY OF CARBON IN ITS VOLUME | 2011 |
|
RU2479653C1 |
| MATERIAL FOR DIES OF DIAMOND AND ABRASIVE TOOLS AND METHOD OF MANUFACTURING THEREOF | 1998 |
|
RU2136479C1 |
| CAKED ALLOY ON TITANIUM-BASE, AND A METHOD OF ITS MAKING | 1991 |
|
RU2016114C1 |
