KR100485994B1 - Ti(CN)-based cermets containing high nitrogen and manufacturing method thereof - Google Patents

Ti(CN)-based cermets containing high nitrogen and manufacturing method thereof Download PDF

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KR100485994B1
KR100485994B1 KR10-2002-0043193A KR20020043193A KR100485994B1 KR 100485994 B1 KR100485994 B1 KR 100485994B1 KR 20020043193 A KR20020043193 A KR 20020043193A KR 100485994 B1 KR100485994 B1 KR 100485994B1
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nitrogen
cermet
high nitrogen
less
titanium
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KR20040009284A (en
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안선용
이규왕
고영봉
김학규
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한국야금 주식회사
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    • 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
    • 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
    • C22C1/058—Mixtures of metal powder with non-metallic powder by reaction sintering (i.e. gasless reaction starting from a mixture of solid metal compounds)

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Powder Metallurgy (AREA)

Abstract

질소함량이 각기 다른 탄질화 티타늄(Ti(CN))의 조합에 의해 절삭성능이 우수한 고질소 탄질화 티탄기(Ti(CN)-based) 서멧트 및 이의 제조방법이 개시된다. Disclosed is a high nitrogen titanium nitride group (Ti (CN) -based) cermet having excellent cutting performance by a combination of titanium carbonitrides (Ti (CN)) having different nitrogen contents, and a method of manufacturing the same.

즉, 본 발명은 30wt% 이상 60wt% 이하의 저·중질소 함유 탄질화 티타늄(Ti(Cx-1Nx) 0∠x≤0.5)과, 5wt% 이상 20wt% 이하의 고질소 함유 탄질화 티타늄(Ti(Cx-1Nx) 0.5∠x≤1) 및 10wt% 이상 25wt% 이하의 결합상(Ni+Co)을 주성분으로 하고, 20wt% 이상 40wt% 이하의 Me(CxNyOz)[단, 0∠x+y+z≤1; Me=V, Cr, Nb, Ta, Mo 및 W 중 한 종류]를 포함하며, 합금 내 질소 : 질소+탄소+산소의 중량비를 0.4 이상 0.6 미만 갖는 고질소 티탄기 서멧트와 그 제조하는 방법으로, 상기 혼합비의 조성으로 배합하여 혼합물을 밀링한 다음, 건조 후 성형체를 만들고, 상기 성형체를 1시간 동안 1450℃에서 진공 소결함을 특징으로 하는 고질소 함유 탄질화 티탄기 서멧트의 제조방법이 제공된다.That is, the present invention is a low-medium nitrogen-containing titanium nitride (Ti (C x-1 N x ) 0∠x≤0.5) of 30wt% or more and 60wt% or less, high nitrogen-containing carbonitride of 5wt% or more and 20wt% or less Titanium (Ti (C x-1 N x ) 0.5∠x≤1) and 10wt% or more and 25wt% or less of bonded phase (Ni + Co) as main components, and 20wt% or more and 40wt% or less of Me (C x N y) O z ), provided that 0xx + y + z ≦ 1; Me = V, Cr, Nb, Ta, Mo and W], and a high nitrogen titanium group cermet having a weight ratio of nitrogen to nitrogen + carbon + oxygen in the alloy of 0.4 to less than 0.6 and a method for producing the same The method for producing a high nitrogen-containing titanium carbonitride-based cermet is characterized in that the mixture is milled in the composition of the mixing ratio, and then dried to form a molded body, and the molded body is vacuum sintered at 1450 ° C. for 1 hour. do.

Description

고질소함유 탄질화 티탄기 서멧트 및 이의 제조방법{Ti(CN)-based cermets containing high nitrogen and manufacturing method thereof}  High nitrogen-containing titanium carbonitride group cermet and its manufacturing method {Ti (CN) -based cermets containing high nitrogen and manufacturing method

본 발명은 강의 선삭 또는 밀링 공구용재에 적합한 서멧트 및 이의 제조방법에 관한 것으로써, 보다 상세하게는 절삭성능이 우수한 고질소 탄질화 티탄기(Ti(CN)-based) 서멧트 및 그 제조방법에 관한 것이다. The present invention relates to a cermet suitable for turning or milling tool materials of steel, and more particularly, to a high-nitrogen carbonitride titanium (Ti (CN) -based) cermet having excellent cutting performance and a method of manufacturing the same. It is about.

일반적으로 탄질화 티탄기 서멧트는 WC-Co계 초경 합금에 비해서 내산화성 및 내마모성이 뛰어나서 절삭공구로 널리 사용되고 있으나 기계적으로 결손 되기 쉬운 결점을 갖고 있다. In general, titanium carbonitride group cermet is widely used as a cutting tool because it is excellent in oxidation resistance and abrasion resistance compared to WC-Co-based cemented carbide, but has a defect that is easy to be mechanically defective.

상기와 같은 문제점을 해결하고자 다양한 기술이 개발되어 왔다.Various techniques have been developed to solve the above problems.

예를 들어, 대한민국 특허 제 9440 호에서는 Ti(CN)계 서멧트 소결체의 제조방법을 개시하고 있으며, 여기서는 Ti(CN)계 서멧트 성형체를 ZrO2와 Y2O3의 혼합분말이 코팅된 기판 위에 올려놓고 1450∼1550℃에서 소결처리 하는 방법을 공개하고 있고,For example, Korean Patent No. 9440 discloses a method of manufacturing a Ti (CN) -based cermet sintered body, wherein the Ti (CN) -based cermet molded body is coated with a mixed powder of ZrO 2 and Y 2 O 3 . On top of that, a method of sintering at 1450-1550 ° C is disclosed.

또한, 대한민국 특허 제 10531 호에서는 통상의 서멧트 조성물에 백색 덱스트린을 2∼5wt% 첨가 후 열처리(800∼1000℃)와 소결처리(1400∼1500℃)하는 Ti(CN)계 서멧트 소결체의 제조방법을 개시하고 있다. In addition, Korean Patent No. 10531 describes the preparation of a Ti (CN) -based cermet sintered body subjected to heat treatment (800 to 1000 ° C.) and sintering (1400 to 1500 ° C.) after adding 2 to 5 wt% of white dextrin to a conventional cermet composition. A method is disclosed.

그러나 이들 특허들에서는 질소분위기에서 Ti(CN)계 서멧트를 제조하는 방법을 언급하고만 있다. However, these patents only mention a method for preparing Ti (CN) -based cermets in a nitrogen atmosphere.

이들과는 달리 질소함유 서멧트 및 그 제조방법에 관한 특허로는 대한민국 특허 제 10817, 180522, 186288 호 및 266341 호 등이 있다.Unlike these, patents related to nitrogen-containing cermets and methods for manufacturing the same include Korean Patent Nos. 10817, 180522, 186288, and 266341.

이들 특허들은 대부분 Co 및 / 또는 Ni를 주성분으로 하는 결합상 7∼20wt%, 잔부로서 탄화티타늄, 질화티타늄 및 / 또는 탄질화 티타늄을 주성분으로 하는 경질상 및 불가피한 불순물로 이루어지는 서멧트에 있어서, Ti, W, Mo, Ta, Nb, V, Zr, N 및 C로 이루어진 것으로 구성되거나 WC를 함유하는 것, 또는 Cr을 포함하는 것 등을 공개하고 있다.These patents are mostly in the form of 7-20 wt% of Co and / or Ni as the main component, and the remainder of cermet consisting of hard phase and inevitable impurities mainly composed of titanium carbide, titanium nitride and / or titanium carbonitride. , Consisting of W, Mo, Ta, Nb, V, Zr, N, and C, containing WC, containing Cr, and the like.

이들 문헌들이 공개하고 있듯이 일반적으로 서멧트는 경질상으로 Ti(CN)과 결합상으로 Ni, Co 및 Fe 등의 금속을 주성분으로 하고, 주기율표에서 IVa, Va 그리고 VIa족 금속의 탄화물, 질화물, 탄질화물 등을 첨가물로 함유한 세라믹-금속복합소결체를 말한다(대한민국 특허 제 9222 호).As these documents disclose, cermet is generally composed of metals such as Ni, Co and Fe in the hard phase and Ti (CN) in the hard phase, and carbides, nitrides and carbonitrides of Group IVa, Va and VIa metals in the periodic table. Ceramic-metal composite sintered body containing an additive as an additive (Korean Patent No. 9222).

이러한 Ti(CN)계 서멧트의 전형적인 미세구조는 유심구조(core/rim structure)로서 코어(core)는 녹지 않고 남아 있는 Ti(CN)이고, 림(rim)은 (Ti, Me, Me2, Me3)(CN) 형태의 고용상이다. 결합상은 유심구조 경질상을 둘러싼 형태로 존재한다.A typical microstructure of such a Ti (CN) -based cermet is a core / rim structure, in which the core is Ti (CN) remaining unmelted, and the rim is (Ti, Me, Me 2 , Me 3 ) (CN) type of employment. The binding phase exists in the form surrounding the core structure hard phase.

여기에서 상기 유심구조 경질상은 내마모성에 결합상은 인성에 가장 큰 영향을 주성분으로 알려져 있다. 또한, 첨가되는 탄화물들은 서멧트의 특성에 다른 영향을 미치는 것으로 알려져 있다. 예를 들어, WC 또는 Mo2C는 경질상과 경합상간의 습윤성(wettability)을 향상시켜 입자 미세화 효과를 부여하여 경도를 증가시키고, TaC 또는 NbC는 서멧트의 고온 경도나 고온 항절력과 같은 고온 성질을 향상시키고, VC 또는 Cr3C2는 결합상의 경도를 증가시키는 탄화물로 보고 되어있다.Here, the core structure hard phase is known to have the greatest influence on wear resistance and the binding phase on toughness. It is also known that the carbides added have a different effect on the properties of the cermet. For example, WC or Mo 2 C enhances the wettability between the hard phase and the competing phase, imparting grain refining effects and increasing hardness. It is reported that carbides improve properties and VC or Cr 3 C 2 increase the hardness of the bonding phase.

상기 언급한 특허들은 이들의 효과를 개량시키고자한 것으로 보인다. 하지만 절삭 성능을 향상시키기 위하여 내충격성과 내마모성을 더욱 향상시킨 서멧트의 필요는 날로 증가하고 있으며 따라서 경질상, 결합상 및 첨가탄화물의 양 및 적절한 첨가탄화물의 선택이 필요하게 된다. The aforementioned patents appear to seek to improve their effects. However, in order to improve cutting performance, the need for cermets having further improved impact resistance and abrasion resistance is increasing day by day, and thus, the amount of hard phase, binder phase, and additional carbide, and selection of appropriate additional carbide are required.

본 발명은 상기와 같은 종래기술의 문제점을 극복하기 위한 것으로서, 본 발명의 목적은 종래의 Ti(CN)계 서멧트보다 내충격성 및 내마모성을 향상시킴은 물론 소결성을 향상시켜 절삭성능이 우수한 새로운 고질소 함유 탄질화 티탄기 서멧트와 그 제조방법을 제공함에 그 목적이 있다.The present invention is to overcome the problems of the prior art as described above, an object of the present invention is to improve the impact resistance and wear resistance than the conventional Ti (CN) -based cermet, as well as to improve the sintering properties of the new high performance It is an object to provide a nitrogen-containing titanium carbonitride group cermet and a method for producing the same.

상기와 같은 본 발명의 목적을 달성하기 위하여, 본 발명은 질소함량이 각기 다른 탄질화 티타늄 (Ti(CN))의 조합을 통해 절삭성능이 우수한 고질소 탄질화 티탄기 (Ti(CN)-based) 서멧트 합금 및 그 제조방법을 제공한다.In order to achieve the object of the present invention as described above, the present invention is a high-nitrogen carbonitride titanium group (Ti (CN) -based excellent cutting performance through the combination of different titanium carbonitride (Ti (CN)) ) Provides a cermet alloy and a method of manufacturing the same.

보다 상세하게는 본 발명에 따르면, 30∼60wt%의 저·중질소 함유 탄질화 티타늄(Ti(Cx-1Nx), 0〈x≤0.5)과 5∼20wt%의 고질소 함유 탄질화 티타늄(Ti(Cx-1Nx) 0.5〈x≤1)과, 10∼25wt%의 결합상 (Ni+ Co)을 주성분으로 하고, 20∼40wt%의 Me(CxNyOz)[단 0〈 x+y+z ≤1 ; Me=V, Cr, Nb, Ta, Mo 및 W 중 한 종류]를 포함하는 고질소 탄질화 티탄기 서멧트를 제공한다.More specifically, according to the present invention, 30-60 wt% low - nitrogen-containing titanium carbonitride (Ti (C x-1 N x ), 0 <x≤0.5) and 5-20 wt% high nitrogen-containing carbonitride Titanium (Ti (C x-1 N x ) 0.5 <x≤1) and 10-25 wt% of the bonded phase (Ni + Co) as the main component, 20-40 wt% of Me (C x N y O z ) [ Provided that 0 <x + y + z ≦ 1; A high nitrogen carbonitride titanium group cermet including Me = V, Cr, Nb, Ta, Mo, and W] is provided.

여기서, 바람직하게는 상기 서멧트 내의 질소 : 질소 + 탄소 + 산소의 중량비는 0.4∼0.6으로 함이 바람직하다.Preferably, the weight ratio of nitrogen: nitrogen + carbon + oxygen in the cermet is preferably 0.4 to 0.6.

또한 본 발명은, 상기와 같이 구성되는 서멧트 재료를 혼합 밀링 후 건조하고 1000kg/㎠의 압력으로 성형한 다음 1450℃에서 소결하는 고질소 함유 탄질화 티탄기 서멧트의 제조방법을 제공한다. The present invention also provides a method for producing a high nitrogen-containing titanium carbonitride-based cermet that is mixed after milling the cermet material configured as described above, dried at a pressure of 1000 kg / cm 2 and then sintered at 1450 ° C.

여기서, 혼합밀링은 알코올을 용매로 하여 애트리터에서 15시간 함이 바람직하고, 소결은 성형체를 흑연제 평면판(plate)에 올려놓고 흑연제 발연체와 단열재로 이루어진 로내에서 1시간 진공소결함이 바람직하다.Here, mixing milling is preferably performed for 15 hours in an attritor using alcohol as a solvent, and sintering is carried out by vacuum sintering for 1 hour in a furnace made of a graphite fuming body and a heat insulating material after placing the molded body on a graphite flat plate. This is preferred.

이하에서는 바람직한 실시 예를 통하여 본 발명을 보다 상세히 설명하다.Hereinafter, the present invention will be described in more detail with reference to preferred embodiments.

먼저, 본 발명의 주성분인 저·중질소 함유 탄질화 티타늄(Ti(Cx-1Nx), 0〈x≤0.5)의 양이 30wt% 이하가 되면 내마모성이 저하되고, 60wt% 이상이 되면 절삭성능 중 내 충격성이 급격히 저하되므로 저·중질소 함유 탄질화 티타늄(Ti(Cx-1Nx), 0〈x≤0.5)의 양이 30wt% 이상 60wt% 이하로 유지하는 것이 바람직하다. 고질소 함유 탄질화 티탄륨(Ti(Cx-1Nx), 0.5〈x≤1)의 양이 20wt% 보다 많으면, 소결성 저하를 가져오며, 5wt% 보다 작으면 절삭 성능이 저하되므로 고질소 함유 탄질화 티탄륨(Ti(Cx-1Nx), 0.5〈x≤1)의 양을 5wt% 이상 20wt% 이하로 유지하는 것이 바람직하다.First, when the amount of low and medium nitrogen - containing titanium carbonitride (Ti (C x-1 N x ), 0 <x≤0.5), which is the main component of the present invention, is 30wt% or less, wear resistance is lowered, and when it is 60wt% or more, Since the impact resistance during the cutting performance is sharply lowered, it is preferable to keep the amount of low and medium nitrogen - containing titanium carbonitride (Ti (C x -1 N x ), 0 <x≤0.5) at 30 wt% or more and 60 wt% or less. If the amount of high nitrogen-containing titanium carbonitride (Ti (C x-1 N x ), 0.5 <x≤1) is more than 20wt%, the sintering property is lowered, and if it is less than 5wt%, the cutting performance is lowered. It is preferable to keep the amount of containing titanium nitride (Ti (C x-1 N x ), 0.5 <x≤1) at 5 wt% or more and 20 wt% or less.

또한, 서멧트 내의 질소 : 질소 + 탄소 + 산소의 중량비가 0.4 이하가 되면 절삭 성능에 저하되고, 0.6 이상이 되면 소결성 저하를 초래하므로 질소 : 질소 + 탄소 + 산소의 중량비는 0.4∼0.6으로 한다.In addition, when the weight ratio of nitrogen: nitrogen + carbon + oxygen in the cermet is 0.4 or less, the cutting performance is lowered, and when the weight ratio of nitrogen or more is 0.6 or more, the sintering property is lowered, so that the weight ratio of nitrogen: nitrogen + carbon + oxygen is 0.4 to 0.6.

또한 진공 소결온도 및 시간은 치밀화된 소결체를 얻기에 충분한 온도 및 시간인 1450℃ 및 1시간으로 한정한다. In addition, vacuum sintering temperature and time are limited to 1450 degreeC and 1 hour which is a temperature and time sufficient to obtain a densified sintered compact.

실시 예Example

하기 표 1에서와 같은 조성비로 하고 상기한 온도 및 시간으로 본 발명의 샘플 5가지를 제조하였습니다. 이들 샘플의 제조방법은 다음과 같다.Five samples of the present invention were prepared with the composition ratio as shown in Table 1 below at the above temperature and time. The preparation method of these samples is as follows.

먼저, 표 1에 나타난 혼합조성으로 배합하여 직경 5mm의 초경구석과 함께 알코올을 용매로 하여 애트리터(attritor)를 사용하여 15시간 혼합 밀링한다. 혼합된 슬러리를 스프레이 드라이어(spray dryer)에 건조한 후 1000kg/㎠의 압력으로 SPKN1203EDTR 형상의 절삭팁을 성형하였다.First, the mixture is blended in the mixing composition shown in Table 1 , and mixed with a cemented carbide with a diameter of 5 mm, using alcohol as a solvent, and mixed for 15 hours using an attritor. The mixed slurry was dried in a spray dryer, and then a cutting tip having an SPKN1203EDTR shape was formed at a pressure of 1000 kg / cm 2.

이렇게 제작한 성형체를 흑연제 평면판(plate)에 올려놓고 흑연제 발열체와 단열재로 이루어진 로내에서 진공 소결하였다. 소결온도는 1450℃이다. 이렇게 제조된 소결체 절삭팁에 대하여 가공 후, The molded article thus produced was placed on a graphite flat plate and vacuum-sintered in a furnace composed of a graphite heating element and a heat insulator. Sintering temperature is 1450 ℃. After processing the sintered body cutting tip thus manufactured,

(A) 밀링 내마모 시험(A) Milling wear test

피삭재 : SCM440[150mm(길이)×70mm(폭)]Workpiece: SCM440 [150mm (Length) × 70mm (Width)]

절삭속도 : 188m/min.Cutting speed: 188m / min.

이송량 : 0.2mm/날당Feed amount: 0.2mm / day

절입량 : 2.0mmDepth of cut: 2.0mm

절삭시간 : 15PassCutting time: 15Pass

절삭팁 형상 : SPKN1203EDTRCutting tip shape: SPKN1203EDTR

평가 : 15 Pass 후 측면 마모(frank wear, VB)측정Evaluation: Frank wear, V B after 15 Pass

(B) 내충격(B) impact resistance

피삭재 : SCM440[150mm(길이)×100mm(폭)]-3구홈Workpiece: SCM440 [150mm (length) × 100mm (width)]-3 holes

절삭속도 : 125m/min.Cutting speed: 125m / min.

이송량 : 0.3mm/날당부터 파손까지Feed amount: from 0.3mm / day to breakage

절입량 : 2.0mmDepth of cut: 2.0mm

절삭시간 : 파손까지Cutting time: to breakage

절삭팁 형상 : SPKN1203EDTRCutting tip shape: SPKN1203EDTR

평가 : 파손 시까지의 한계 이송 값(3회 반복의 평균)의 조건에서 밀링 절삭 시험을 실시하여, 그 결과를 하기 표 2에 나타냈다. 하기 표 2에서도 알 수있는 바와 같이 본 발명의 Ti(CN)계 서멧트는 비교 서멧트와 비교하여 우수한 합금 특성을 나타내며, 절삭성능에서도 우수한 내마모성과 내충격성(이송 값으로 계산)을 나타냄을 알 수 있다.Evaluation: The milling cutting test was performed on the conditions of the limit feed value (average of 3 repetitions) until breakage, and the result is shown in following Table 2 . As can be seen in Table 2 below , the Ti (CN) -based cermet of the present invention exhibits excellent alloying properties as compared to the comparative cermet, and shows excellent wear resistance and impact resistance (calculated as a transfer value) even in cutting performance. have.

표 1Table 1

표 2TABLE 2

삭제delete

상기한 바와 같이 본 발명은 질소함량을 각기 다르게 한 탄질화 티타늄(Ti(CN))의 조합에 의해 절삭성능이 우수하고 내마모성 및 내충격성이 우수한 고질소 함유 탄질화 티탄기 서멧트가 만들어짐을 알 수 있다. 따라서 본 발명의 성분으로된 서멧트와 그 제조방법으로서 선삭이나 밀링공구용으로 유용하게 사용할 수 있는 서멧트가 제공됨을 알 수 있다. As described above, the present invention shows that the combination of titanium carbonitride (Ti (CN)) having different nitrogen content makes a high nitrogen-containing carbonitride carbonitride group cermet having excellent cutting performance and excellent wear resistance and impact resistance. Can be. Accordingly, it can be seen that a cermet which is a component of the present invention and a method for producing the cermet can be usefully used for turning or milling tools.

상기에서는 바람직한 실시 예를 통하여 본 발명을 기술하였지만 해당기술의 당업자들은 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역 내에서 본 발명을 다양하게 변경 및 수정할 수 있음을 알 수 있을 것이다.Although the present invention has been described through the preferred embodiments, those skilled in the art will recognize that the present invention may be variously modified and modified within the spirit and scope of the present invention as set forth in the claims below.

Claims (8)

(정정)고질소 함유 탄질화 티탄기 서멧트에 있어서,(Correction) In the high nitrogen-containing titanium carbonitride group cermet, 30∼60wt%의 저·중질소 함유 탄질화 티타늄(Ti(Cx-1Nx)), 5∼20wt%의 고질소 함유 탄질화 티타늄(Ti(Cx-1Nx)), 10∼25wt%의 (Ni+Co) 결합상을 주성분으로 하고,30 to 60 wt% low - nitrogen-containing titanium carbonitride (Ti (C x-1 N x )), 5 to 20 wt% high nitrogen-containing titanium carbonitride (Ti (C x-1 N x )), 10 to Main component is 25wt% (Ni + Co) bonded phase, 25∼40wt%의 Me(CxNyOz)형태의 2가지 이상의 첨가물들로 구성되고, 상기 저·중질소 함유 탄질화 티타늄의 x는 0〈 x ≤ 0.5를 만족시키고, 고질소 함유 탄질화 티타늄의 x는 0.5〈 x ≤ 1을 만족시키고, 상기 첨가물 Me(C x N y O z )에서 Me은 V, Cr, Nb, Ta, Mo 또는 W 중 한 종류이고 x, y 및 z는 0<x+y+z≤1을 만족시키며, 상기 서멧트 내 질소 : 질소 + 탄소 + 산소의 중량비가 0.4~0.6임 특징으로 하는 고질소 함유 탄질화 티탄기 서멧트. It is composed of two or more additives in the form of Me (C x N y O z ) of 25 to 40wt%, the x of the low-nitrogen-containing titanium carbonitride satisfies 0 <x ≤ 0.5, high nitrogen-containing carbon X of titanium sulfide satisfies 0.5 &lt; x &lt; 1 , Me is one of V, Cr, Nb, Ta, Mo or W in the additive Me (C x N y O z ) and x, y and z are 0 <x + y + z ≦ 1, wherein the high-nitrogen-containing titanium carbonitride group cermet is characterized in that the weight ratio of nitrogen: nitrogen + carbon + oxygen in the cermet is 0.4 to 0.6. (삭제)(delete) (삭제)(delete) (삭제)(delete) 제 1 항의 고질소 함유 탄질화 서멧트를 제조하는 방법으로써, 상기 혼합비의 조성으로 배합하여 혼합물을 밀링한 다음, 건조 후 성형체를 만들고, 상기 성형체를 1시간 동안 1450℃에서 진공소결함을 특징으로 하는 고질소 함유 탄질화 티탄기 서멧트의 제조방법.A method for producing the high nitrogen-containing carbonitride cermet of claim 1, wherein the mixture is milled by mixing in a composition of the mixing ratio, and then dried to form a molded body, and the molded body is vacuum sintered at 1450 ° C. for 1 hour. The manufacturing method of the high nitrogen containing titanium carbonitride group cermet. 삭제delete 삭제delete 삭제delete
KR10-2002-0043193A 2002-07-23 2002-07-23 Ti(CN)-based cermets containing high nitrogen and manufacturing method thereof KR100485994B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613853A (en) * 1984-06-18 1986-01-09 Sumitomo Electric Ind Ltd Manufacture of sintered hard alloy
JPH03240929A (en) * 1990-02-19 1991-10-28 Nachi Fujikoshi Corp High toughness cermet alloy
JP2001277008A (en) * 2000-03-30 2001-10-09 Toshiba Tungaloy Co Ltd Cermet for cutting tool and its manufacturing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613853A (en) * 1984-06-18 1986-01-09 Sumitomo Electric Ind Ltd Manufacture of sintered hard alloy
JPH03240929A (en) * 1990-02-19 1991-10-28 Nachi Fujikoshi Corp High toughness cermet alloy
JP2001277008A (en) * 2000-03-30 2001-10-09 Toshiba Tungaloy Co Ltd Cermet for cutting tool and its manufacturing method

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