JPH0768599B2 - Diesel engine auxiliary combustion chamber base member with excellent thermal shock resistance - Google Patents
Diesel engine auxiliary combustion chamber base member with excellent thermal shock resistanceInfo
- Publication number
- JPH0768599B2 JPH0768599B2 JP62016362A JP1636287A JPH0768599B2 JP H0768599 B2 JPH0768599 B2 JP H0768599B2 JP 62016362 A JP62016362 A JP 62016362A JP 1636287 A JP1636287 A JP 1636287A JP H0768599 B2 JPH0768599 B2 JP H0768599B2
- Authority
- JP
- Japan
- Prior art keywords
- thermal shock
- shock resistance
- combustion chamber
- diesel engine
- excellent thermal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、すぐれた耐熱衝撃性を有し、かつ高温強度
にもすぐれたディーゼルエンジンの副燃焼室口金部材に
関するものである。TECHNICAL FIELD The present invention relates to a sub-combustion chamber mouthpiece member for a diesel engine, which has excellent thermal shock resistance and high temperature strength.
従来、ディーゼルエンジンの副燃焼室口金部材には、耐
熱衝撃性、高温強度、および耐熱性が要求されることか
ら、 重量％で（以下％は重量％を示す）、Ni−20％Cr−2.4
％Ti−1.2％Al−0.22％Ｃの代表組成を有し、かつ溶体
化処理（例えば真空中、温度、1080℃に８時間保持後、
空冷の条件）および時効処理（例えば真空中、温度:700
℃に16時間保持後、空冷の条件）を施すことによって、
オーステナイト素地にNi−Al−Tiを主成分とする金属間
化合物、すなわちNi3（Al,Ti）を微細に析出させた組織
を具備せしめたNi基耐熱合金や、 Co−18％Cr−15％Ｗ−10％Ni0.4％Ｃの代表組成を有す
るCo基耐熱合金、 などが適用されている。Conventionally, heat shock resistance, high temperature strength, and heat resistance have been required for the auxiliary combustion chamber mouthpiece members of diesel engines. Therefore, Ni-20% Cr-2.4% by weight (hereinafter% indicates% by weight).
% Ti-1.2% Al-0.22% C with a typical composition and solution heat treatment (for example, after holding at a temperature of 1080 ° C for 8 hours in vacuum,
Air cooling conditions and aging treatment (eg in vacuum, temperature: 700
After holding at ℃ for 16 hours, air-cooling condition)
Ni-based heat-resistant alloys with intermetallic compounds containing Ni-Al-Ti as the main component in the austenite matrix, that is, Ni- 3 (Al, Ti) finely-precipitated alloys, Co-18% Cr-15% A Co-based heat-resistant alloy having a typical composition of W-10% Ni0.4% C is applied.
しかし、近年、各種エンジンに対する高性能化の要求は
厳しく、これに伴ない、ディーゼルエンジンの副燃焼室
でも、その使用条件は一段と苛酷さを増しているが、こ
れの構造部材である上記の従来Ni基耐熱合金やCo基耐熱
合金で構成された口金部材は、高温強度および耐熱性は
満足するものの、特に耐熱衝撃性が不十分であるため
に、信頼性の点で問題がある。However, in recent years, the demand for higher performance for various engines has become strict, and along with this, the usage conditions have become even more severe in the auxiliary combustion chambers of diesel engines. Although a die member made of a Ni-base heat-resistant alloy or a Co-base heat-resistant alloy satisfies high-temperature strength and heat resistance, it has a problem in terms of reliability because it has particularly insufficient thermal shock resistance.
そこで、本発明者等は、上述のような観点から、特に耐
熱衝撃性にすぐれ、かつ高温強度および耐熱性にすぐれ
たディーゼルエンジンの副燃焼室口金部材を開発すべく
研究を行なった結果、ディーゼルエンジンの副燃焼室口
金部材（以下、単に口金部材という）を、 C:0.05〜0.25％、 Cr:10〜25％、 Ti:1〜３％、 Al:0.5〜2.5％ Fe:5.1〜15％、 ＷおよびMoのうちの１種または２種:0.05〜1.5％、 Nb,Ta、およびHfのうちの１種または２種以上:0.01〜２
％、 を含有し、さらに必要に応じて、 Co:0.3〜３％と、 ＢおよびZrのうちの１種または２種:0.001〜0.2％、 のいずれか、あるいは両方を含有し、残りがNiと不可避
不純物からなる組成を有するNi基合金で構成すると、こ
の結果の前記口金部材は、鋳放し状態、並びに溶体化処
理および時効処理の熱処理を施した状態で、特にすぐれ
た耐熱衝撃性を有し、かつ上記の従来Ni基耐熱合金およ
び従来Co基耐熱合金で構成された口金部材と同等のすぐ
れた高温強度および耐熱性を有し、したがって、著しく
長期に亘ってすぐれた性能を発揮するという研究結果を
得たのである。Therefore, the present inventors, from the above viewpoints, as a result of conducting research to develop a secondary combustion chamber mouthpiece member of a diesel engine that is particularly excellent in thermal shock resistance, and also excellent in high temperature strength and heat resistance, Engine sub-combustion chamber mouthpiece (hereinafter simply referred to as mouthpiece), C: 0.05-0.25%, Cr: 10-25%, Ti: 1-3%, Al: 0.5-2.5% Fe: 5.1-15% , W and Mo, 1 or 2 kinds: 0.05 to 1.5%, Nb, Ta, and Hf, 1 or 2 kinds or more: 0.01 to 2
%, And, if necessary, Co: 0.3 to 3%, and one or two of B and Zr: 0.001 to 0.2%, or both, and the balance is Ni. When composed of a Ni-based alloy having a composition consisting of unavoidable impurities and the inevitable impurities, the resulting die member has particularly excellent thermal shock resistance in the as-cast state and in the state of solution treatment and heat treatment of aging treatment. And has excellent high-temperature strength and heat resistance equivalent to those of the above-mentioned conventional Ni-base heat-resistant alloy and conventional Co-base heat-resistant alloy, and therefore exhibits excellent performance for a remarkably long time. I got the research results.
この発明は、上記研究結果にもとづいてなされたもので
あって、以下に上記口金部材を構成するNi基合金の成分
組成を上記の通りに限定した理由を説明する。The present invention has been made based on the above research results, and the reason why the composition of the Ni-based alloy constituting the die member is limited as described above will be described below.
（ａ）Ｃ Ｃ成分には、Cr,Ti,W,Mo、さらにNb,Ta,Hfなどと結合し
て炭化物を形成し、結晶粒界および粒内を強化し、もっ
て常温および高温強度を向上させる作用があるが、その
含有量が0.05％未満では前記作用に所望の効果が得られ
ず、一方その含有量が0.25％を越えると、靱性が低下す
るようになることから、その含有量を0.05〜0.25％と定
めた。(A) CC The C component combines with Cr, Ti, W, Mo, and Nb, Ta, Hf, etc. to form a carbide, strengthening the grain boundaries and the inside of the grain, thereby improving the room temperature and high temperature strength. If the content is less than 0.05%, the desired effect cannot be obtained, while if the content exceeds 0.25%, the toughness is reduced. It was defined as 0.05 to 0.25%.
（ｂ）Cr Cr成分には、オーステナイト素地に固溶して、高温耐酸
化性（耐熱性）を著しく向上させる作用があるが、その
含有量が10％未満では所望の高温耐酸化性を確保するこ
とができず、一方その含有量が25％とを越えると、高温
強度および靱性が急激に低下するようになることから、
その含有量を10〜25％と定めた。(B) Cr The Cr component has a function of forming a solid solution in the austenite matrix to significantly improve high temperature oxidation resistance (heat resistance), but if the content is less than 10%, the desired high temperature oxidation resistance is secured. However, if its content exceeds 25%, the high temperature strength and toughness will drop sharply.
Its content was defined as 10-25%.
（ｃ）Ti Ti成分には、NiおよびAlと共にNi3（Al,Ti）の金属間化
合物（以下γ′相という）を形成して、析出強化し、も
って常温および高温強度を向上させる作用があるが、そ
の含有量が１％未満では前記作用に所望の効果が得られ
ず、一方その含有量が３％を越えると、脆いη相（Ni3T
i相）が多量に析出するようになって、靱性が低下する
ことから、その含有量を１〜３％と定めた。(C) Ti The Ti component has a function of forming an intermetallic compound of Ni 3 (Al, Ti) (hereinafter referred to as γ ′ phase) together with Ni and Al to strengthen the precipitation and thereby improve the room temperature and high temperature strength. However, if its content is less than 1%, the desired effect cannot be obtained, while if its content exceeds 3%, the brittle η phase (Ni 3 T
Since the i-phase) is precipitated in a large amount and the toughness is reduced, the content thereof is set to 1 to 3%.
（ｄ）Al Al成分には、上記の通り、γ′相を形成して、常温およ
び高温強度を向上させるほか、高温耐酸化性を向上させ
る作用があるが、その含有量が0.5％未満では前記作用
に所望の効果が得られず、一方その含有量が2.5％を越
えると、鋳造性および溶接性が悪化し、さらに靱性も低
下するようになることから、その含有量を0.5〜2.5％と
定めた。(D) Al As described above, the Al component has a function of forming the γ ′ phase to improve the normal temperature and high temperature strength and the high temperature oxidation resistance, but if the content is less than 0.5%. If the desired effect is not obtained in the above-mentioned action, on the other hand, if its content exceeds 2.5%, the castability and weldability will deteriorate, and the toughness will also decrease, so its content is 0.5-2.5%. I decided.
（ｅ）Fe Fe成分には、オーステナイト素地に固溶して、耐熱衝撃
性を一段と向上させる作用があるが、その含有量が5.1
％未満では所望のすぐれた耐熱衝撃性を確保することが
できず、一方その含有量が15％を越えると、高温強度が
低下することから、その含有量を5.1％〜15％と定め
た。(E) Fe The Fe component has the function of forming a solid solution in the austenite matrix and further improving the thermal shock resistance, but its content is 5.1.
If it is less than 0.1%, the desired excellent thermal shock resistance cannot be secured, while if it exceeds 15%, the high temperature strength decreases, so the content was set to 5.1% to 15%.
（ｆ）ＷおよびMo これらの成分には、オーステナイト素地に固溶するほ
か、上記の通り炭化物を形成して、常温および高温強度
を向上させる作用があるが、その含有量が0.05％未満で
は前記作用に所望の効果が得られず、一方その含有量が
1.5％を越えると、高温耐酸化性および靱性が劣化する
ようになることから、その含有量を0.05〜1.5％と定め
た。(F) W and Mo These components have the effect of forming a solid solution in the austenite matrix and forming carbides as described above to improve the room temperature and high temperature strength, but when the content is less than 0.05%, The desired effect is not obtained, while its content is
If it exceeds 1.5%, the high temperature oxidation resistance and toughness will deteriorate, so the content was defined as 0.05 to 1.5%.
（ｇ）Nb,Ta、およびHf これらの成分には、上記の通りMC型炭化物を形成して結
晶粒界および粒内を強化し、もって常温および高温強度
を向上させる作用があるが、その含有量が0.01％未満で
は前記作用に所望の効果が得られず、一方その含有量が
２％を越えると、靱性が低下するようになることから、
その含有量を0.01〜２％と定めた。(G) Nb, Ta, and Hf These components have the action of forming MC type carbides as described above to strengthen the grain boundaries and grain interiors, thereby improving the room temperature and high temperature strength. If the amount is less than 0.01%, the desired effect cannot be obtained, while if the content exceeds 2%, the toughness tends to decrease.
Its content was set to 0.01 to 2%.
（ｈ）Co Co成分には、オーステナイト素地に固溶して、高温強度
および高差耐酸化性を一段と向上させる作用があるの
で、必要に応じて含有させるが、その含有量が0.3％未
満では前記作用に所望の向上効果が得られず、一方その
含有量が３％を越えてもより一層の向上効果は得られ
ず、経済性を考慮して、その含有量を0.3〜３％と定め
た。(H) Co The Co component has a function of forming a solid solution in the austenite matrix to further improve the high temperature strength and the high differential oxidation resistance. Therefore, it is contained as necessary, but if the content is less than 0.3%. The desired effect of the above action cannot be obtained, and even if the content exceeds 3%, no further effect can be obtained. Therefore, considering the economic efficiency, the content is set to 0.3 to 3%. It was
（ｉ）ＢおよびZr これらの成分には、結晶粒界を強靱化し、もって耐熱衝
撃性を一段と向上させる作用があるので、必要に応じて
含有されるが、その含有量が0.001％未満では前記作用
に所望の向上効果が得られず、一方その含有量が0.2％
を越えると、脆化傾向が現われるようになることから、
その含有量を0.001〜0.2％と定めた。(I) B and Zr These components have the action of strengthening the grain boundaries and further improving the thermal shock resistance, so they are contained as necessary, but if the content is less than 0.001%, The desired improvement effect on the action is not obtained, while its content is 0.2%
If it exceeds, brittleness tends to appear, so
Its content was set to 0.001 to 0.2%.
なお、SiおよびMnを含有しても、その含有量がそれぞれ
２％以下であれば、特性に何らの悪影響も及ぼさないの
で、これらの成分をそれぞれ２％以下の範囲で、脱酸剤
として使用することは有用なことである。Even if Si and Mn are contained, if the content is 2% or less, the characteristics are not adversely affected. Therefore, each of these components is used as a deoxidizing agent in the range of 2% or less. Doing is useful.
つぎに、この発明の口金部材を実施例により具体的に説
明する。Next, the mouthpiece member of the present invention will be specifically described by way of examples.
通常の真空溶解炉を用い、それぞれ第１表に示される成
分組成をもった合金溶湯を調製し、これらの合金溶湯
を、ロストワックス精密鋳造法にて、それぞれ第１図
（ａ）に平面図で、同（ｂ）に第１図のＡ−Ａ線断面図
で示される形状を有し、かつ外径:31mmφ×厚さ:10mmの
寸法をもった口金部材、並びに平行部外径:7mmφ×平行
部長さ:50mm×チャック部外径:25mmφ×全長:90mmの寸
法をもった引張試験片素材に鋳造し、さらにこれらの口
金部材および試験片素材のうちの一部（第２表の備考参
照）に、真空中、1000〜1150℃の範囲内の温度に４〜10
時間保持後、空冷の溶体化処理と、真空中、650〜750℃
の範囲内の温度に、16時間保持後、空冷の時効処理から
なる熱処理を施すことによって本発明口金部材１〜24、
従来口金部材1,2をそれぞれ製造した。Using ordinary vacuum melting furnaces, molten alloys having the composition shown in Table 1 were prepared, and these molten alloys were plan-viewed in Fig. 1 (a) by the lost wax precision casting method. In FIG. 1 (b), a die member having a shape shown in the sectional view taken along the line AA in FIG. 1 and having an outer diameter: 31 mm φ × thickness: 10 mm, and a parallel portion outer diameter: 7 mm φ × parallel part length: 50 mm × chuck part outer diameter: 25 mm φ × total length: 90 mm, cast into a tensile test piece material, and a part of these die members and test piece material (second Refer to the table remarks), in vacuum, the temperature in the range of 1000 ~ 1150 ℃ 4 ~ 10
After holding for a period of time, air-cooled solution treatment and vacuum, 650-750 ℃
The temperature within the range of, the present invention die member 1 to 24, by holding for 16 hours, then subjected to a heat treatment consisting of aging treatment of air cooling,
Conventional die members 1 and 2 have been manufactured.
ついで、この結果得られた各種の口金部材についてま
ず、第２図に概略説明図で示されるように、水平回転軸
１に放射状に取付けた４本の腕２の先端部のホルダー３
に上記口金部材Ｓをセットし、バーナー４からのフレー
ムガス５にて前記口金部材Ｓの上面を加熱し、パイロス
コープ６で加熱温度を観察し、この口金部材の上面温度
が800℃になった時点で、腕２を矢印方向に回転して、
水槽７内の水８中に前記の加熱された口金部材Ｓを浸漬
し、これを口金部材Ｓの噴孔部に割れが発生するまで繰
り返し行なうことによって耐熱衝撃性を評価し、さらに
高温強度については、上記引張試験片素材から削り出し
た所定寸法の引張試験片を用い、大気中、温度:800℃で
引張試験を行ない、引張強さと0.2％体力を測定するこ
とにより評価した。これらの結果を第２表に示した。Next, with respect to the various mouthpiece members obtained as a result, first, as shown in the schematic explanatory view in FIG. 2, the holder 3 at the tip of the four arms 2 radially attached to the horizontal rotation shaft 1 is shown.
The mouthpiece member S is set to, the upper surface of the mouthpiece member S is heated by the flame gas 5 from the burner 4, and the heating temperature is observed by the pyroscope 6, and the upper surface temperature of the mouthpiece member reaches 800 ° C. At this point, rotate arm 2 in the direction of the arrow,
Thermal shock resistance was evaluated by immersing the heated mouthpiece member S in water 8 in the water tank 7 and repeating the operation until cracks occurred in the injection hole portion of the mouthpiece member S. Was evaluated by performing a tensile test at a temperature of 800 ° C. in the atmosphere using a tensile test piece having a predetermined size cut out from the above tensile test piece material, and measuring the tensile strength and 0.2% physical strength. The results are shown in Table 2.
〔発明の効果〕 第１表および第２表に示される結果から、本発明口金部
材１〜24は、いずれも鋳放し状態および熱処理状態で、
従来口金部材1,2と同等あるいはこれ以上のすぐれた高
温強度を有し、かつこれより一段とすぐれた耐熱衝撃性
をもつことが明らかである。 [Effects of the Invention] From the results shown in Tables 1 and 2, all of the die members 1 to 24 of the present invention are
It is clear that it has a high temperature strength equal to or better than that of the conventional die members 1 and 2, and has a much better thermal shock resistance than that.
上述のように、この発明の口金部材は、特にすぐれた耐
熱衝撃性を有し、かつ高温強度にもすぐれているので、
すぐれた性能を著しく長期に亘って発揮するなどの工業
上有用な特性を有するのである。As described above, the die member of the present invention has particularly excellent thermal shock resistance and is also excellent in high temperature strength.
It has industrially useful characteristics such as excellent performance over a long period of time.
第１図（ａ）および（ｂ）は、ディーゼルエンジンの副
燃焼室口金部材を示す平面図および第１図のＡ−Ａ線断
面図、第２図は耐熱衝撃性試験の概略説明図である。 １……水平回転軸、２……腕、３……ホルダー、４……
バーナー、５……フレームガス、６……パイロスコー
プ、７……水槽、８……水、Ｓ……口金部材。1 (a) and 1 (b) are a plan view showing a sub-combustion chamber mouthpiece member of a diesel engine and a sectional view taken along the line AA of FIG. 1, and FIG. 2 is a schematic explanatory view of a thermal shock resistance test. . 1 ... Horizontal rotation axis, 2 ... Arm, 3 ... Holder, 4 ...
Burner, 5 ... Flame gas, 6 ... Pyroscope, 7 ... Water tank, 8 ... Water, S ... Clasp member.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−119640（ＪＰ，Ａ) 特開 昭57−210942（ＪＰ，Ａ) 特開 昭60−162760（ＪＰ，Ａ) 特開 昭61−153253（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A 61-119640 (JP, A) JP-A 57-210942 (JP, A) JP-A 60-162760 (JP, A) JP-A 61- 153253 (JP, A)
Claims (4)
２％、 を含有し、残りがNiと不可避不純物からなる組成（以上
重量％）を有するNi基合金で構成したことを特徴とする
耐熱衝撃性のすぐれたディーゼルエンジンの副燃焼室口
金部材。1. C: 0.05 to 0.25%, Cr: 10 to 25%, Ti: 1 to 3%, Al: 0.5 to 2.5%, Fe: 5.1 to 15%, one or two of W and Mo. Species: 0.05-1.5%, one or more of Nb, Ta, and Hf: 0.01-
A sub-combustion chamber mouthpiece member for a diesel engine having excellent thermal shock resistance, characterized in that it is composed of a Ni-based alloy having a composition (2% by weight or more) and the balance of Ni and inevitable impurities (above weight%).
％、 を含有し、さらに、 Co:0.3〜３％ を含有し、残りがNiと不可避不純物からなる組成（以上
重量％）を有するNi基合金で構成したことを特徴とする
耐熱衝撃性のすぐれたディーゼルエンジンの副燃焼室口
金部材。2. C: 0.05 to 0.25%, Cr: 10 to 25%, Ti: 1 to 3%, Al: 0.5 to 2.5%, Fe: 5.1 to 15%, one or two of W and Mo. Species: 0.05 to 1.5, 1 or 2 or more of Nb, Ta, and Hf: 0.01 to 2
%, And further, Co: 0.3 to 3% is contained, and the balance is composed of a Ni-based alloy having a composition of Ni and inevitable impurities (above wt%), which is excellent in thermal shock resistance. Diesel engine auxiliary combustion chamber base member.
％、 を含有し、さらに、 ＢおよびZrのうちの１種または２種:0.001〜0.2％、 を含有し、残りがNiと不可避不純物からなる組成（以上
重量％）を有するNi基合金で構成したことを特徴とする
耐熱衝撃性のすぐれたディーゼルエンジンの副燃焼室口
金部材。3. C: 0.05 to 0.25%, Cr: 10 to 25%, Ti: 1 to 3%, Al: 0.5 to 2.5%, Fe: 5.1 to 15%, one or two of W and Mo. Species: 0.05 to 1.5%, one or more of Nb, Ta, and Hf: 0.01 to 2
%, And 1 type or 2 types of B and Zr: 0.001 to 0.2%, and the balance is a Ni-based alloy having a composition of Ni and unavoidable impurities (above wt%). A sub-combustion chamber mouthpiece member for a diesel engine, which has excellent thermal shock resistance.
％、 を含有し、さらに、 Co:0.3〜３％と、 ＢおよびZrのうちの１種または２種:0.001〜0.2％、 を含有し、残りがNiと不可避不純物からなる組成（以上
重量％）を有するNi基合金で構成したことを特徴とする
耐熱衝撃性のすぐれたディーゼルエンジンの副燃焼室口
金部材。4. C: 0.05 to 0.25%, Cr: 10 to 25%, Ti: 1 to 3%, Al: 0.5 to 2.5%, Fe: 5.1 to 15%, one or two of W and Mo. Species: 0.05 to 1.5%, one or more of Nb, Ta, and Hf: 0.01 to 2
%, Further, Co: 0.3 to 3%, and one or two of B and Zr: 0.001 to 0.2%, and the balance of Ni and unavoidable impurities (more than wt% ), A sub-combustion chamber mouthpiece member of a diesel engine having excellent thermal shock resistance, characterized in that it is made of a Ni-based alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62016362A JPH0768599B2 (en) | 1987-01-27 | 1987-01-27 | Diesel engine auxiliary combustion chamber base member with excellent thermal shock resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62016362A JPH0768599B2 (en) | 1987-01-27 | 1987-01-27 | Diesel engine auxiliary combustion chamber base member with excellent thermal shock resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63186845A JPS63186845A (en) | 1988-08-02 |
| JPH0768599B2 true JPH0768599B2 (en) | 1995-07-26 |
Family
ID=11914223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62016362A Expired - Lifetime JPH0768599B2 (en) | 1987-01-27 | 1987-01-27 | Diesel engine auxiliary combustion chamber base member with excellent thermal shock resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0768599B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5408768B2 (en) * | 2008-12-04 | 2014-02-05 | 三菱マテリアル株式会社 | Ni-base heat-resistant alloy ingot having high-temperature strength and dendritic structure and gas turbine blade casting comprising the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL65677A0 (en) * | 1981-06-12 | 1982-08-31 | Special Metals Corp | Nickel base cast alloy |
| JPS60162760A (en) * | 1984-02-06 | 1985-08-24 | Daido Steel Co Ltd | Production of high-strength heat resistant material |
| JPS61119640A (en) * | 1984-11-16 | 1986-06-06 | Honda Motor Co Ltd | Alloy for exhaust valve |
-
1987
- 1987-01-27 JP JP62016362A patent/JPH0768599B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63186845A (en) | 1988-08-02 |
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