KR20170017870A - 소결 탄화물 또는 서멧체의 신규의 제조 방법 - Google Patents
소결 탄화물 또는 서멧체의 신규의 제조 방법 Download PDFInfo
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Abstract
Description
도 2는 결합제 레이크의 일례를 도시하는 시험 1로부터의 소결 탄화물의 미세구조를 도시하는 광학 현미경사진을 개시한다.
도 3은 시험 3으로부터의 소결 탄화물의 미세구조를 도시하는 광학 현미경사진을 개시한다.
도 4는 시험 8로부터의 소결 탄화물의 미세구조를 도시하는 광학 현미경사진을 개시한다.
상기 모든 광학 현미경사진들은 올림푸스(Olympus) PMG3-LSH-3 도립 현미경상에서 촬영되었다.
| 구성성분 (wt%) |
시험 1 | 시험 2 | 시험 3 | 시험 4 | 시험 5 | 시험 6 | 시험 7 | 시험 8 | 시험 9 | 시험 10 | 시험 11 | 시험 12 |
| WC004 | 82.22 | 0 | 82.47 | 82.12 | 82.48 | 82.15 | 82.39 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| WC008 | 0 | 82.22 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 82.49 | 82.13 | 82.50 | 82.17 | 82.41 |
| Co | 9.21 | 9.21 | 9.22 | 9.18 | 9.22 | 9.18 | 9.21 | 9.22 | 9.18 | 9.22 | 9.18 | 9.21 |
| Cr3C2 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 | 0.46 |
| C | 0.05 | 0.02 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| PEG | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 |
| 용매 | 2.67 | 2.67 | 1.92 | 1.92 | 1.92 | 1.92 | 1.92 | 1.92 | 1.92 | 1.92 | 1.92 | 1.92 |
| 첫 번째(건조) 혼합 단계에서 첨가된 TEA | 0 | 0 | 0.10 | 0.50 | 0.00 | 0.00 | 0.10 | 0.10 | 0.50 | 0.00 | 0.00 | 0.10 |
| 두 번째 혼합 단계에서 첨가된 TEA | 0.09 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 첫 번째(건조) 혼합 단계에서 첨가된 PEI | 0 | 0 | 0.00 | 0.00 | 0.09 | 0.46 | 0.09 | 0.00 | 0.00 | 0.09 | 0.46 | 0.09 |
| 공극률 | A06B00C00 | A06B00C00 | A02B02C00 | A02B00C00 | A00B06C00 | A00B04C00 | A02B00C00 | A00B02C04 | A00B02C02 | A00B02C02 | A00B02C02 | A00B02C02 |
Claims (15)
- 소결 탄화물 또는 서멧의 제조 방법으로,
a) 탄화금속(들) 및 결합제 금속(들)(및 임의로 질화금속(들))을 포함하는 분말을 제공하고;
b) 상기 분말 조성물을 진공하에서 (바람직하게는 건식) 혼합하고;
c) 적어도 하나의 유기 결합제를 상기 분말 조성물에 첨가하고;
d) 상기 적어도 하나의 유기 결합제를 상기 분말 조성물과 진공하에서 혼합하고 온도를 소정의 온도로 상승시키고 상기 온도를 상기 유기 결합제가 용융될 때까지 소정의 시간 동안 유지시키고;
e) 상기 단계 d)에서 수득된 혼합물에 성형 및 소결 공정을 임의로 가하는
단계들을 포함하며, 하나 이상의 분산제를 상기 단계 a)의 분말 조성물에 첨가하는 방법. - 제 1 항에 있어서,
하나 이상의 냉각제를 상기 단계 b)의 분말 조성물에, 바람직하게는 혼합물이 건조하게 남아있도록 하는 양으로, 바람직하게는 상기 혼합물 온도를 산화를 피하기에 충분히 낮은 온도로, 전형적으로는 약 50도 이하로 유지시키기 위해 필요한 것 이하의 양으로 첨가함을 특징으로 하는 방법. - 제 1 항 또는 제 2 항에 있어서,
소결 탄화물이 70 중량% 이상의 탄화텅스텐 및 30 중량% 이하의, 탄화티타늄, 탄화탄탈륨, 질화탄탈륨, 질화티타늄, 탄화니오븀, 탄화바나듐, 탄화몰리브데늄, 탄화크로뮴 및 이들의 혼합물 중에서 선택된 적어도 하나의 다른 탄화금속 및/또는 질화금속을 포함하는 방법. - 제 1 항 또는 제 2 항에 있어서,
서멧이 탄화티타늄, 질화티타늄, 탄화텅스텐, 탄화탄탈륨, 질화탄탈륨, 탄화니오븀, 탄화바나듐, 탄화몰리브데늄, 탄화크로뮴 또는 이들의 혼합물을 포함하는 방법. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
결합제 금속(들)이 코발트, 몰리브데늄, 철, 크로뮴 또는 니켈 및 이들의 혼합물 중에서 선택되는 방법. - 제 1 항 내지 제 5 항 중 어느 한 항에 있어서,
혼합을 고전단 믹서, 예를 들어 고속 로터 믹서, 또는 행성식 믹서를 사용함으로써 수행하는 방법. - 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,
하나 이상의 유기 용매를 단계 d)에서 임의로 첨가하는 방법. - 제 1 항 내지 제 7 항 중 어느 한 항에 있어서,
단계 d)에서 수득된 혼합물을 단계 e)에서 성형 후 및 소결 전에 임의로 건조시키는 방법. - 제 1 항 내지 제 8 항 중 어느 한 항에 있어서,
하나 이상의 분산제가 트라이에탄올 아민(TEA) 또는 폴리에틸렌 이민(PEI) 및 이들의 혼합물 중에서 선택되는 방법. - 제 1 항 내지 제 9 항 중 어느 한 항에 있어서,
성형을 압출, 압착 공정 또는 사출 성형에 의해 수행하는 방법. - 제 1 항 내지 제 10 항 중 어느 한 항에 정의된 바와 같은 방법에 따라 수득된 소결 탄화물 또는 서멧으로, 바람직하게는 상기 소결 탄화물 또는 서멧의 미세구조가 직경 >5x 평균 경질 금속 그레인 크기의 경질 금속 그레인의 클러스터를 갖지 않는 상기 소결 탄화물 또는 서멧.
- 제 12 항에 있어서,
소결 탄화물 또는 서멧체의 미세구조가 직경 >5x 평균 경질 금속 그레인 크기의 결합제 레이크를 갖지 않음을 특징으로 하는 소결 탄화물 또는 서멧. - 제 12 항 또는 제 13 항에 있어서,
미세구조가 A00 또는 A02의 A형 공극률을 가짐을 특징으로 하는 소결 탄화물 또는 서멧. - 회전 절단기 또는 임의의 다른 마모 용도를 위한 제 1 항 내지 제 14 항 중 어느 한 항에 따른 소결 탄화물 또는 서멧의 용도.
- 소결 탄화물 또는 서멧 압착 준비된(RTP) 분말의 제조 방법으로,
a) 탄화금속(들) 및 결합제 금속(들)(및 임의로 질화금속(들))을 포함하는 분말을 제공하고;
b) 상기 분말 조성물을 진공하에서 (바람직하게는 건식) 혼합하고;
c) 상기 분말 조성물에 물 및/또는 에탄올을 가하여 슬러리를 제조하고;
d) 적어도 하나의 유기 결합제를 상기 슬러리에 첨가하고;
e) 상기 적어도 하나의 유기 결합제를 상기 슬러리와 혼합하고;
f) 상기 슬러리를 분무 건조시켜 압착 준비된(RTP) 분말을 제조하고;
g) 상기 단계 f)에서 수득된 RTP 분말에 성형 및 소결 공정을 임의로 가하는
단계들을 포함하며, 하나 이상의 분산제를 단계 a)의 분말 조성물에 첨가하는 방법.
Applications Claiming Priority (3)
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|---|---|---|---|
| EP14172142.3 | 2014-06-12 | ||
| EP14172142.3A EP2955241B1 (en) | 2014-06-12 | 2014-06-12 | Method for manufacturing a cemented carbide or cermet body |
| PCT/EP2015/062794 WO2015189182A1 (en) | 2014-06-12 | 2015-06-09 | A new method of making a cemented carbide or cermet body |
Publications (1)
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| KR20170017870A true KR20170017870A (ko) | 2017-02-15 |
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| Country | Link |
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| US (1) | US20170066056A1 (ko) |
| EP (1) | EP2955241B1 (ko) |
| JP (1) | JP6623178B2 (ko) |
| KR (1) | KR20170017870A (ko) |
| CN (1) | CN106457381B (ko) |
| CA (1) | CA2941806C (ko) |
| ES (1) | ES2971472T3 (ko) |
| PL (1) | PL2955241T3 (ko) |
| RU (1) | RU2703951C2 (ko) |
| WO (1) | WO2015189182A1 (ko) |
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| CN108687349A (zh) * | 2018-06-07 | 2018-10-23 | 广州奥特工程塑料有限公司 | 一种不锈钢粉的注塑加工工艺 |
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| CN110394453A (zh) * | 2019-04-29 | 2019-11-01 | 浙江恒成硬质合金有限公司 | 一种碳化铌硬质合金辊环生产工艺 |
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| CN112846186B (zh) * | 2020-12-29 | 2022-10-14 | 上海富驰高科技股份有限公司 | 一种mim用钨合金喂料及其制备方法 |
| JP7666119B2 (ja) * | 2021-05-18 | 2025-04-22 | セイコーエプソン株式会社 | 射出成形用組成物、射出成形体の製造方法およびチタン焼結体の製造方法 |
| CN114507063B (zh) * | 2022-03-31 | 2023-01-03 | 萍乡华创电气有限公司 | 一种瓷绝缘子注浆成型方法 |
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-
2014
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- 2014-06-12 PL PL14172142.3T patent/PL2955241T3/pl unknown
- 2014-06-12 ES ES14172142T patent/ES2971472T3/es active Active
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2015
- 2015-06-09 WO PCT/EP2015/062794 patent/WO2015189182A1/en not_active Ceased
- 2015-06-09 JP JP2016568953A patent/JP6623178B2/ja active Active
- 2015-06-09 US US15/122,765 patent/US20170066056A1/en not_active Abandoned
- 2015-06-09 CN CN201580022378.4A patent/CN106457381B/zh active Active
- 2015-06-09 RU RU2017100543A patent/RU2703951C2/ru active
- 2015-06-09 CA CA2941806A patent/CA2941806C/en active Active
- 2015-06-09 KR KR1020167028307A patent/KR20170017870A/ko not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN106457381A (zh) | 2017-02-22 |
| CA2941806C (en) | 2022-12-13 |
| RU2017100543A (ru) | 2018-07-16 |
| CN106457381B (zh) | 2020-06-09 |
| EP2955241B1 (en) | 2024-01-24 |
| US20170066056A1 (en) | 2017-03-09 |
| JP6623178B2 (ja) | 2019-12-18 |
| RU2703951C2 (ru) | 2019-10-23 |
| PL2955241T3 (pl) | 2024-05-06 |
| ES2971472T3 (es) | 2024-06-05 |
| EP2955241C0 (en) | 2024-01-24 |
| JP2017527687A (ja) | 2017-09-21 |
| RU2017100543A3 (ko) | 2018-11-06 |
| CA2941806A1 (en) | 2015-12-17 |
| WO2015189182A1 (en) | 2015-12-17 |
| EP2955241A1 (en) | 2015-12-16 |
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