PL414755A1 - Sposób wytwarzania lokalnych stref kompozytowych w odlewach i wkładka odlewnicza - Google Patents
Sposób wytwarzania lokalnych stref kompozytowych w odlewach i wkładka odlewniczaInfo
- Publication number
- PL414755A1 PL414755A1 PL414755A PL41475515A PL414755A1 PL 414755 A1 PL414755 A1 PL 414755A1 PL 414755 A PL414755 A PL 414755A PL 41475515 A PL41475515 A PL 41475515A PL 414755 A1 PL414755 A1 PL 414755A1
- Authority
- PL
- Poland
- Prior art keywords
- casting
- weight
- powders
- powder
- producing local
- Prior art date
Links
- 238000005266 casting Methods 0.000 title abstract 9
- 239000002131 composite material Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000843 powder Substances 0.000 abstract 7
- 239000000203 mixture Substances 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 229910001021 Ferroalloy Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/23—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces involving a self-propagating high-temperature synthesis or reaction sintering step
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/10—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Powder Metallurgy (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób wytwarzania lokalnych stref kompozytowych w obrębie odlewu, które zwiększają odporność na procesy degradacji oraz zużycia ściernego części maszyn pracujących w warunkach silnych obciążeń mechanicznych. Przedmiotem zgłoszenia jest także wkładka odlewnicza. Sposób wytwarzania lokalnych stref kompozytowych w odlewach polega na tym, że sporządza się mieszaninę proszków zawierającą proszek tytanu, proszek węgla i proszki moderatora, następnie mieszaninę proszków suszy się w suszarce próżniowej w temperaturze 50°C i prasuje się pod ciśnieniem 500 MPa nadając sprasowanej kompozycji formę brył, stanowiących wkładki odlewnicze, w których względna wagowa zawartość proszków moderatora jest nie mniejsza niż 60% w stosunku do całkowitej wagi mieszaniny proszków, następnie wkładki odlewnicze umieszcza się w wyznaczonych strefach wnętrza formy, po czym formę zalewa się płynnym stopem bazowym. Wkładka odlewnicza składa się z mieszaniny wyselekcjonowanych proszków metali wybranych z grupy: Fe, Cr, Ni, Mo, Mn, Si, Mo, Co, Cu, C lub ich żelazostopów w ilości od 60% wag. do 97% wag. oraz proszków węgla i tytanu w ilości od 3% wag. do 40% wag., które po sprasowaniu tworzą wkładkę odlewniczą w formie bryły.
Priority Applications (23)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL414755A PL414755A1 (pl) | 2015-11-12 | 2015-11-12 | Sposób wytwarzania lokalnych stref kompozytowych w odlewach i wkładka odlewnicza |
| PCT/IB2016/056825 WO2017081665A1 (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| DK16820332.1T DK3374107T3 (da) | 2015-11-12 | 2016-11-11 | Pulversammensætning til fremstilling af støbeindsatser, støbeindsats og fremgangsmåde til opnåelse af lokale kompositzoner i støbeemner |
| AU2016352319A AU2016352319B2 (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| PE2018000750A PE20181032A1 (es) | 2015-11-12 | 2016-11-11 | Composicion de polvos para la fabricacion de insertos de fundicion, los insertos de fundicion y el metodo de obtencion de zonas locales compuestas en piezas de fundicion |
| MYPI2021004544A MY199159A (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| CN201680065248.3A CN108348995B (zh) | 2015-11-12 | 2016-11-11 | 用于制造铸造嵌件的粉末组合物、铸造嵌件以及在铸件中获得局部复合区的方法 |
| US15/775,142 US11077493B2 (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| MYPI2018701788A MY191977A (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| BR112018009390-4A BR112018009390B1 (pt) | 2015-11-12 | 2016-11-11 | Composições de pós para a fabricação de insertos de lingote, inserto de lingote, e, método para obter zonas compósitas locais em lingotes |
| CA3003685A CA3003685C (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| MX2018005895A MX2018005895A (es) | 2015-11-12 | 2016-11-11 | Composicion de polvos para la fabricacion de insertos de fundicion, los insertos de fundicion y el metodo de obtencion de zonas locales compuestas en piezas de fundicion. |
| ES16820332T ES2932022T3 (es) | 2015-11-12 | 2016-11-11 | Composición en polvo para la fabricación de insertos de fundición, inserto de fundición y método de obtención de zonas de material compuesto locales en piezas fundidas |
| PL16820332.1T PL3374107T3 (pl) | 2015-11-12 | 2016-11-11 | Kompozycja proszków do wytwarzania wkładek odlewniczych, wkładka odlewnicza oraz sposób wytwarzania lokalnych stref kompozytowych w odlewach |
| EP16820332.1A EP3374107B1 (en) | 2015-11-12 | 2016-11-11 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| FIEP16820332.1T FI3374107T3 (fi) | 2015-11-12 | 2016-11-11 | Jauhekoostumus valuinserttien valmistamista varten, valuinsertti ja menetelmä paikallisten komposiittivyöhykkeiden saamiseksi valuissa |
| JP2018525423A JP6942702B2 (ja) | 2015-11-12 | 2016-11-11 | 鋳造インサート製造用の粉末組成物および鋳造物に局所複合ゾーンを得る鋳造インサートおよび方法 |
| EP22204377.0A EP4166258A3 (en) | 2015-11-12 | 2016-11-11 | A casting insert fabrication method using a composition of powders, a casting insert and method of obtaining local composite zones in castings |
| CL2018001259A CL2018001259A1 (es) | 2015-11-12 | 2018-05-09 | Composición de polvos para la fabricación de insertos de fundición, los insertos de fundición y el método de obtención de zonas locales compuestas en piezas de fundición |
| MX2024004476A MX2024004476A (es) | 2015-11-12 | 2018-05-10 | Composicion de polvos para la fabricacion de insertos de fundicion, los insertos de fundicion y el metodo de obtencion de zonas locales compuestas en piezas de fundicion. |
| ZA201803339A ZA201803339B (en) | 2015-11-12 | 2018-05-18 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| US17/369,492 US11548065B2 (en) | 2015-11-12 | 2021-07-07 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
| AU2022204059A AU2022204059B2 (en) | 2015-11-12 | 2022-06-10 | Powder composition for the manufacture of casting inserts, casting insert and method of obtaining local composite zones in castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL414755A PL414755A1 (pl) | 2015-11-12 | 2015-11-12 | Sposób wytwarzania lokalnych stref kompozytowych w odlewach i wkładka odlewnicza |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL414755A1 true PL414755A1 (pl) | 2017-05-22 |
Family
ID=58709020
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL414755A PL414755A1 (pl) | 2015-11-12 | 2015-11-12 | Sposób wytwarzania lokalnych stref kompozytowych w odlewach i wkładka odlewnicza |
| PL16820332.1T PL3374107T3 (pl) | 2015-11-12 | 2016-11-11 | Kompozycja proszków do wytwarzania wkładek odlewniczych, wkładka odlewnicza oraz sposób wytwarzania lokalnych stref kompozytowych w odlewach |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL16820332.1T PL3374107T3 (pl) | 2015-11-12 | 2016-11-11 | Kompozycja proszków do wytwarzania wkładek odlewniczych, wkładka odlewnicza oraz sposób wytwarzania lokalnych stref kompozytowych w odlewach |
Country Status (6)
| Country | Link |
|---|---|
| EP (2) | EP4166258A3 (pl) |
| CN (1) | CN108348995B (pl) |
| DK (1) | DK3374107T3 (pl) |
| ES (1) | ES2932022T3 (pl) |
| FI (1) | FI3374107T3 (pl) |
| PL (2) | PL414755A1 (pl) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108396172B (zh) * | 2018-02-23 | 2019-06-21 | 温州海诚光学有限公司 | 一种颗粒增强钛基复合材料及其制备方法 |
| EP3962683A1 (en) * | 2019-04-30 | 2022-03-09 | Innerco SP. Z O.O. | Composite material based on alloys, manufactured in situ, reinforced with tungsten carbide and methods of its production |
| EP3915684A1 (fr) * | 2020-05-29 | 2021-12-01 | Magotteaux International SA | Pièce d'usure composite |
| EP3915699A1 (fr) * | 2020-05-29 | 2021-12-01 | Magotteaux International SA | Pièce d'usure composite céramique-métal |
| CN111730042A (zh) * | 2020-07-01 | 2020-10-02 | 吕新起 | 基于shs技术的陶瓷颗粒增强钢基复合材料的制备方法 |
| BR112023000111A2 (pt) | 2020-07-07 | 2023-01-24 | Sandvik Srp Ab | Uma peça de esmagamento ou desgaste tendo uma zona de desgaste compósita localizada |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT1450973E (pt) * | 2001-12-04 | 2006-07-31 | Magotteaux Int | Pecas de fundicao com uma resistencia melhorada ao desgaste |
| CN1868635A (zh) * | 2006-04-19 | 2006-11-29 | 吉林大学 | 铸型内合成TiC颗粒局部增强钢基复合材料的制备方法 |
| CN101214540A (zh) * | 2008-01-07 | 2008-07-09 | 吉林大学 | TiC/TiB2双相陶瓷颗粒局部增强锰钢复合材料的制备方法 |
| CN101214539A (zh) * | 2008-01-07 | 2008-07-09 | 吉林大学 | TiC颗粒局部增强耐磨锰钢复合材料的制备方法 |
| BE1018129A3 (fr) | 2008-09-19 | 2010-05-04 | Magotteaux Int | Impacteur composite pour concasseurs a percussion. |
| BE1018128A3 (fr) * | 2008-09-19 | 2010-05-04 | Magotteaux Int | Cone de broyage pour concasseur a compression. |
| BE1018130A3 (fr) * | 2008-09-19 | 2010-05-04 | Magotteaux Int | Materiau composite hierarchique. |
| CN101905185B (zh) * | 2010-04-12 | 2012-05-16 | 吉林大学 | 一种破碎机用原位陶瓷局部增强复合材料锤头及制备方法 |
| CN102423799B (zh) * | 2011-12-12 | 2013-02-13 | 广东新劲刚超硬材料有限公司 | 原位合成钢结硬质合金铸造复合锤头的方法及锤头 |
| PL398770A1 (pl) * | 2012-04-10 | 2013-01-07 | Akademia Górniczo-Hutnicza im. Stanislawa Staszica | Sposób wytwarzania stref kompozytowych w odlewach |
| ITUD20120134A1 (it) * | 2012-07-25 | 2014-01-26 | F A R Fonderie Acciaierie Roiale S P A | Procedimento per la fabbricazione di getti in acciaio e getti in acciaio cosi' fabbricati |
| CN103302266A (zh) * | 2013-06-03 | 2013-09-18 | 江苏蓝日超硬钢材料有限公司 | 一种自蔓延合成TiB2颗粒增强铜基表面复合材料的制备方法及一种复合铜铸件 |
| CN103447504A (zh) * | 2013-08-21 | 2013-12-18 | 吉林大学 | 一种仿生耦合耐磨材料的制备方法 |
| JP2015172159A (ja) * | 2014-03-12 | 2015-10-01 | 国立研究開発法人科学技術振興機構 | 自己伝播発熱粒体およびその製造方法並びにハンダ接合方法並びにハンダペースト |
-
2015
- 2015-11-12 PL PL414755A patent/PL414755A1/pl unknown
-
2016
- 2016-11-11 EP EP22204377.0A patent/EP4166258A3/en active Pending
- 2016-11-11 ES ES16820332T patent/ES2932022T3/es active Active
- 2016-11-11 PL PL16820332.1T patent/PL3374107T3/pl unknown
- 2016-11-11 CN CN201680065248.3A patent/CN108348995B/zh active Active
- 2016-11-11 FI FIEP16820332.1T patent/FI3374107T3/fi active
- 2016-11-11 DK DK16820332.1T patent/DK3374107T3/da active
- 2016-11-11 EP EP16820332.1A patent/EP3374107B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108348995A (zh) | 2018-07-31 |
| EP4166258A2 (en) | 2023-04-19 |
| EP3374107A1 (en) | 2018-09-19 |
| PL3374107T3 (pl) | 2023-03-06 |
| DK3374107T3 (da) | 2022-11-21 |
| CN108348995B (zh) | 2021-11-16 |
| EP3374107B1 (en) | 2022-11-02 |
| ES2932022T3 (es) | 2023-01-09 |
| FI3374107T3 (fi) | 2023-01-31 |
| EP4166258A3 (en) | 2024-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PL414755A1 (pl) | Sposób wytwarzania lokalnych stref kompozytowych w odlewach i wkładka odlewnicza | |
| WO2010028470A8 (en) | Metallurgical composition of particulate materials, self-lubricating sintered product and process for obtaining self-lubricating sintered products | |
| JP2015528053A5 (pl) | ||
| JP2010504426A5 (pl) | ||
| JP2012520942A5 (pl) | ||
| RU2011142321A (ru) | Железо-ванадиевый порошковый сплав | |
| WO2014196123A8 (ja) | 粉末冶金用合金鋼粉および鉄基焼結体の製造方法 | |
| JP5999285B1 (ja) | 粉末冶金用鉄基合金粉末および焼結鍛造部材 | |
| CN103572163A (zh) | 一种粉末冶金阀座嵌件及其制备方法 | |
| CN105695836A (zh) | 一种WC-(Co+Ni+Cr)复合粘结相硬质合金的制备方法 | |
| Gülsoy et al. | Enhancing the wear properties of iron based powder metallurgy alloys by boron additions | |
| CN104439251B (zh) | 一种粉末冶金用渗铜剂 | |
| CN104388740B (zh) | 铜基石墨与锆粉末冶金复合材料及其制备方法 | |
| CN105290387A (zh) | 一种制备粉末冶金组合物的方法 | |
| Nekatibeb et al. | Effect of copper and graphite addition on sinterability of iron | |
| CN105296833A (zh) | 一种硬质合金 | |
| CN104928524A (zh) | 一种Cu-Al-Ti-Fe-Ni系铜合金 | |
| RU2472866C2 (ru) | Порошковый износостойкий материал и способ его изготовления | |
| CN104233041A (zh) | 轻质高强度耐磨粉末冶金钢基复合材料及制备方法与应用 | |
| Kim et al. | The Effect of the Additive Elements Alloying Method on the Corrosion Resistance of Sintered STS 316L | |
| Verma et al. | Effect of carbon addition and sintering temperatures on densification and microstructural evolution of sinter-hardening alloy steels | |
| Jamaludin et al. | An influence of the SS316L powder particle shape to the densification of metal injection molding (MIM) compact | |
| Zhang et al. | Effects of Ni/Co metal binder phase on mechanical properties of Ti (C, N)-based cermets | |
| RU2651928C1 (ru) | Шихта для получения железных спеченных изделий | |
| CN103409677A (zh) | 一种锚杆钻头的制备方法 |