JPH04247804A - Injecting parts for die casting machine - Google Patents
Injecting parts for die casting machineInfo
- Publication number
- JPH04247804A JPH04247804A JP3025408A JP2540891A JPH04247804A JP H04247804 A JPH04247804 A JP H04247804A JP 3025408 A JP3025408 A JP 3025408A JP 2540891 A JP2540891 A JP 2540891A JP H04247804 A JPH04247804 A JP H04247804A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- composite material
- casting machine
- alloy powder
- die casting
- 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.)
- Granted
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 46
- 239000000919 ceramic Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910001182 Mo alloy Inorganic materials 0.000 claims abstract description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000010936 titanium Substances 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 5
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910011214 Ti—Mo Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 101100258328 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) crc-2 gene Proteins 0.000 description 1
- 229910000979 O alloy Inorganic materials 0.000 description 1
- 229910005091 Si3N Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910033181 TiB2 Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910007948 ZrB2 Inorganic materials 0.000 description 1
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は耐溶損性及び耐衝撃性が
優れており、アルミニウム、亜鉛、スズ及び鉛等の非鉄
金属（その合金も含む）の鋳造に好適のダイカストマシ
ン用射出部品に関する。[Field of Industrial Application] The present invention relates to an injection part for a die casting machine which has excellent corrosion resistance and impact resistance and is suitable for casting nonferrous metals (including alloys thereof) such as aluminum, zinc, tin, and lead. .
【０００２】0002
【従来の技術】近時、アルミニウム等の非鉄金属を高精
度且つ高速度で鋳造できるダイカスト技術は、自動車、
産業機械及び家電機器等の分野において、各種部品の重
要な鋳造手段となっている。[Prior Art] In recent years, die-casting technology that allows non-ferrous metals such as aluminum to be cast with high precision and high speed has become popular in automobiles,
It is an important casting method for various parts in the fields of industrial machinery and home appliances.
【０００３】従来、ダイカストマシン用射出部品にはＪ
ＩＳ ＳＫＤ６１の熱間ダイス鋼等が使用されている
。
また、近年、セラミックス製部材を焼きばめ又は鋳ぐる
みすることにより、溶湯と接触する部分にセラミックス
を配置したスリーブ及びプランジャー等のダイカストマ
シン用射出部品も使用されている。Conventionally, injection parts for die-casting machines include J.
IS SKD61 hot die steel etc. are used. Furthermore, in recent years, injection parts for die-casting machines, such as sleeves and plungers, have been used, such as sleeves and plungers, in which ceramic members are shrink-fitted or cast-inserted, and ceramics are placed in the portions that come into contact with the molten metal.
【０００４】0004
【発明が解決しようとする課題】しかしながら、上述し
た従来のダイカストマシン用射出部品には以下に示す問
題点がある。However, the above-described conventional injection parts for die casting machines have the following problems.
【０００５】先ず、ダイス鋼を使用した射出部品におい
ては、一般的に非鉄金属は鉄と反応しやすいという性質
があるため、ダイカストマシンの溶湯と接触する部分で
は著しい溶損が発生する。このため、射出部品を頻繁に
交換する必要があり、寿命が短い。また、鋼は熱伝導性
が高いため、射出部品内に注入された溶湯の温度が低下
しやすく、これにより鋳造品の製造歩留りが著しく低下
する。First, in injection parts using die steel, nonferrous metals generally tend to react easily with iron, so significant melting loss occurs in the parts that come into contact with the molten metal of the die casting machine. Therefore, the injection parts must be replaced frequently and have a short lifespan. Further, since steel has high thermal conductivity, the temperature of the molten metal injected into the injection part tends to drop, which significantly reduces the manufacturing yield of the cast product.
【０００６】一方、セラミックスを溶湯接触部に配置し
た射出部品においては、耐溶損性は優れているものの、
ダイカストマシンが溶湯を射出する瞬間に射出部品に極
めて大きな衝撃が加えられるため、本来脆い材質である
セラミックス部分が破壊されることがある。そうすると
、作業を中断する必要があり、作業性が悪い。On the other hand, injection parts in which ceramics are placed in the molten metal contact area have excellent corrosion resistance, but
The moment a die-casting machine injects molten metal, an extremely large impact is applied to the injected part, which can break the ceramic part, which is an inherently brittle material. In this case, it is necessary to interrupt the work, resulting in poor work efficiency.
【０００７】本発明はかかる問題点に鑑みてなされたも
のであって、非鉄金属の溶湯に対する耐溶損性、耐衝撃
性、保温性及び耐摩耗性が優れており、長寿命であって
作業性が良好なダイカストマシン用射出部品を提供する
ことを目的とする。The present invention has been made in view of the above problems, and has excellent corrosion resistance to molten nonferrous metals, impact resistance, heat retention, and abrasion resistance, long life, and workability. The purpose is to provide injection parts for die casting machines with good quality.
【０００８】[0008]
【課題を解決するための手段】本発明に係るダイカスト
マシン用射出部品は、Ｍｏ又はＭｏ合金の粉粒体、チタ
ン又はチタン合金の粉粒体及びセラミックス粉粒体を配
合し焼結させて得た複合材料により、溶湯と接触する部
分の少なくとも一部が形成されており、前記Ｍｏ又はＭ
ｏ合金の粉粒体は０．１乃至５０体積％配合してあるこ
とを特徴とする。[Means for Solving the Problems] An injection part for a die casting machine according to the present invention is obtained by blending and sintering Mo or Mo alloy powder, titanium or titanium alloy powder, and ceramic powder. At least a part of the part that comes into contact with the molten metal is formed of the Mo or M composite material.
It is characterized in that the O alloy powder and granules are blended in an amount of 0.1 to 50% by volume.
【０００９】[0009]
【作用】本発明においては、溶湯と接触する部分の少な
くとも一部が所定量のＭｏ（モリブデン）又はＭｏ合金
の粉粒体と、チタン又はチタン合金の粉粒体と、セラミ
ックス粉粒体とから作られた複合材料により形成されて
いる。この複合材料は、非鉄金属の溶湯に対して優れた
耐溶損性を有すると共に耐衝撃性にも優れたチタン又は
チタン合金に、高強度且つ高硬度のセラミックス粒子を
添加したものであり、耐溶損性、耐衝撃性及び耐摩耗性
を兼備している。また、この複合材料は熱伝導性が鋼に
比して低く、溶湯保温性が優れている。従って、この複
合材料で溶湯接触部を形成することにより、長寿命であ
って作業性が優れたダイカストマシン用射出部品が得ら
れる。[Operation] In the present invention, at least a part of the part that comes into contact with the molten metal is made of a predetermined amount of Mo (molybdenum) or Mo alloy powder, titanium or titanium alloy powder, and ceramic powder. It is made of composite material. This composite material is made by adding ceramic particles with high strength and hardness to titanium or titanium alloy, which has excellent corrosion resistance against molten nonferrous metals and has excellent impact resistance. It has excellent strength, impact resistance, and abrasion resistance. Furthermore, this composite material has lower thermal conductivity than steel and has excellent heat retention of molten metal. Therefore, by forming the molten metal contact portion with this composite material, an injection part for a die-casting machine with a long life and excellent workability can be obtained.
【００１０】次に、この複合材料の各成分の添加理由及
び組成限定理由について説明する。Next, the reasons for adding each component of this composite material and the reasons for limiting the composition will be explained.
【００１１】Ｍｏ
Ｍｏは金属チタン又はチタン合金からなるマトリックス
とセラミックス粒子との間の濡れ性を改善し、両者の接
合性を向上させる効果があるので、Ｍｏを複合材料中に
添加することにより複合材料の耐衝撃性を向上させるこ
とができる。このＭｏは、複合材料の原料粉末中にＭｏ
粉粒体として添加してもよいし、Ｔｉ−Ｍｏ合金の粉粒
体として複合材料中にＭｏを含有させてもよい。Ｔｉ−
Ｍｏ合金の粉粒体として添加する場合は、以下に示すよ
うな３つの態様が考えられる。
■Ｔｉ−Ｍｏ合金の粉粒体＋Ｍｏ粉粒体＋セラミックス
粉粒体
■Ｔｉ−Ｍｏ合金の粉粒体＋セラミックス粉粒体■Ｔｉ
−Ｍｏ合金の粉粒体＋Ｔｉ粉粒体＋セラミックス粉粒体
上記■〜■のいずれの場合も、複合材料中におけるＭｏ
の含有量は、Ｍｏ又はＭｏ合金の粉粒体の配合比で０．
１体積％以上であることが必要である。Ｍｏの含有量が
０．１体積％未満である場合は、上述の濡れ性を改善す
る効果が得られない。このため、複合材料の製造時にお
いて原料粉末の焼結が不十分になり、複合材料の硬度及
び伸びが低くなる。一方、Ｍｏの含有量が５０体積％を
超えると、ＭｏとＴｉとの間の金属間化合物が必要量以
上に析出し、複合材料が脆性化する。このため、複合材
料中のＭｏの含有量はＭｏ又はＭｏ合金の粉粒体の配合
比で０．１乃至５０体積％とする。[0011] Mo Mo has the effect of improving the wettability between the matrix made of metallic titanium or titanium alloy and the ceramic particles, and improving the bonding properties between the two, so by adding Mo to the composite material, The impact resistance of the material can be improved. This Mo is contained in the raw material powder of the composite material.
Mo may be added as a powder or granule, or may be contained in the composite material as a Ti-Mo alloy powder. Ti-
When adding Mo alloy as a powder or granule, the following three modes are possible. ■Ti-Mo alloy powder + Mo powder + ceramic powder ■Ti-Mo alloy powder + ceramic powder ■Ti
- Mo alloy powder + Ti powder + ceramic powder In any of the above cases, the amount of Mo in the composite material is
The content of Mo or Mo alloy powder is 0.
It is necessary that the content is 1% by volume or more. If the content of Mo is less than 0.1% by volume, the above-mentioned effect of improving wettability cannot be obtained. For this reason, the raw material powder is insufficiently sintered during the production of the composite material, resulting in low hardness and elongation of the composite material. On the other hand, if the Mo content exceeds 50% by volume, intermetallic compounds between Mo and Ti will precipitate in excess of the required amount, making the composite material brittle. Therefore, the Mo content in the composite material is set to 0.1 to 50% by volume in terms of the blending ratio of Mo or Mo alloy powder.
【００１２】なお、Ｍｏ又はＭｏ合金の粉粒体及びＴｉ
又はＴｉ合金の粉粒体には不可避的に含まれる不純物が
存在する場合があることはいうまでもない。[0012] In addition, Mo or Mo alloy powder and Ti
It goes without saying that there may be impurities that are unavoidably included in the Ti alloy powder.
【００１３】セラミックス粉粒体
複合材料中のセラミックス粉粒体の体積含有率が０．１
％未満の場合、複合材料の硬度及び耐摩耗性は極めて低
いものとなる。一方、セラミックス粉粒体の体積含有率
が５０％を超えると、複合材料が脆性化するため、耐衝
撃性が低下し、割れやすくなる。このため、複合材料中
のセラミックス粉粒体の体積含有率は０．１乃至５０％
であることが好ましい。[0013] The volume content of the ceramic powder in the ceramic powder composite material is 0.1.
%, the hardness and wear resistance of the composite material will be extremely low. On the other hand, if the volume content of the ceramic powder exceeds 50%, the composite material becomes brittle, resulting in a decrease in impact resistance and a tendency to break. Therefore, the volume content of ceramic powder in the composite material is 0.1 to 50%.
It is preferable that
【００１４】[0014]
【実施例】次に、本発明の実施例についてその比較例と
比較して説明する。EXAMPLES Next, examples of the present invention will be explained in comparison with comparative examples thereof.
【００１５】先ず、平均粒径が２０μｍであるチタン（
Ｔｉ）粉末と、平均粒径が５μｍである炭化けい素（Ｓ
ｉＣ）粉末とを５：１の体積比で混合した。そして、こ
の混合粉体に下記表１に示す割合で、平均粒径が１５μ
ｍのＭｏ粉末を均一に混合して原料とした。First, titanium (
Ti) powder and silicon carbide (S) with an average particle size of 5 μm.
iC) powder at a volume ratio of 5:1. Add to this mixed powder the proportions shown in Table 1 below so that the average particle size is 15 μm.
A raw material was prepared by uniformly mixing 5 m of Mo powder.
【００１６】[0016]
【表１】[Table 1]
【００１７】この原料をゴム型に密封し、加圧力が１ト
ン／ｃｍ２ の条件で冷間静水圧プレス（ ＣＩＰ）
加工を行って、筒状の圧粉体を得た。そして、真空度が
１０−５Ｔｏｒｒ、温度が１３５０℃の真空炉中でこの
圧粉体を焼結させた後、この焼結体を施盤加工すること
により、複合材料からなるコールドチャンバ用スリーブ
を製作した。この各スリーブを実施例１乃至３及び比較
例１乃至３とした。[0017] This raw material was sealed in a rubber mold and cold isostatically pressed (CIP) at a pressure of 1 ton/cm2.
Processing was performed to obtain a cylindrical green compact. After sintering this green compact in a vacuum furnace with a vacuum degree of 10-5 Torr and a temperature of 1350°C, the sintered body is lathed to produce a sleeve for a cold chamber made of a composite material. did. These sleeves were designated as Examples 1 to 3 and Comparative Examples 1 to 3.
【００１８】次に、１５体積％のＭｏを含有し、残部が
チタン及び不可避的不純物からなり、平均粒径が４５μ
ｍであるチタン合金粉末と、平均粒径が１０μｍである
炭化タングステン（ＷＣ）粉末とを下記表２に示す割合
で均一に混合して原料とした。Next, it contains 15% by volume of Mo, the remainder consists of titanium and unavoidable impurities, and has an average particle size of 45 μm.
A raw material was prepared by uniformly mixing a titanium alloy powder having a particle diameter of 100 m and a tungsten carbide (WC) powder having an average particle size of 10 μm in the proportions shown in Table 2 below.
【００１９】[0019]
【表２】[Table 2]
【００２０】この原料を、上述の実施例１乃至３及び比
較例１乃至３と同様に、冷間静水圧プレス加工した後、
真空中で焼結させ、この焼結体を旋盤加工することによ
り、筒状の複合材料を得た。この複合材料を従来のコー
ルドチャンバ用スリーブ（材質；ＳＫＤ６１）の内面に
焼きばめすることにより、溶湯と接触する部分に前記複
合材料が配置されたコールドチャンバ用スリーブを製作
した。これらのスリーブを実施例４乃至７及び比較例４
乃至６とした。After this raw material was subjected to cold isostatic pressing in the same manner as in Examples 1 to 3 and Comparative Examples 1 to 3,
A cylindrical composite material was obtained by sintering in vacuum and lathing the sintered body. By shrink-fitting this composite material to the inner surface of a conventional sleeve for a cold chamber (material: SKD61), a sleeve for a cold chamber in which the composite material was disposed in the portion that contacts the molten metal was manufactured. These sleeves were used in Examples 4 to 7 and Comparative Example 4.
It was set as 6 to 6.
【００２１】また、従来から使用されている熱間ダイス
鋼（ＳＫＤ６１）製のコールドチャンバ用スリーブを従
来例１とし、内面にセラミックス（窒化けい素）を焼き
ばめしたコールドチャンバ用スリーブを従来例２とした
。[0021] In addition, conventional example 1 is a sleeve for a cold chamber made of hot die steel (SKD61) that has been used conventionally, and a sleeve for a cold chamber whose inner surface is shrink-fitted with ceramics (silicon nitride) is a conventional example. It was set as 2.
【００２２】上述した実施例、比較例及び従来例の各ス
リーブに対し、下記に示す試験を行ってその性能を調べ
た。
■硬度試験
スリーブ内面のマイクロビッカース硬度を測定した。
■引張試験
スリーブ内面の部材の伸びを測定した。
■実用試験
コールドチャンバ用ダイカストマシン（能力；２５０ト
ン）にスリーブを取り付けて実際にアルミニウム合金（
ＡＤＣ１２）溶湯から自動車用エンジンカバーを鋳造し
た。そして、１００００回ショットした後にスリーブを
取り外し、溶損状況を調べた。The following tests were conducted on the sleeves of the above-mentioned Examples, Comparative Examples, and Conventional Examples to examine their performance. ■Hardness test The micro Vickers hardness of the inner surface of the sleeve was measured. ■Tensile test The elongation of the inner surface of the sleeve was measured. ■Practical test A sleeve was attached to a cold chamber die-casting machine (capacity: 250 tons) and an aluminum alloy (
ADC12) An automobile engine cover was cast from molten metal. After 10,000 shots, the sleeve was removed and the state of melting and damage was examined.
【００２３】これらの試験結果を下記表３及び表４に示
す。但し、溶損状況は使用前の寸法に対するスリーブ内
面の最大溶損量が０．１ｍｍ以下である場合を◎で示し
、０．１ｍｍを超え０．３ｍｍ以下である場合を○で示
し、０．３ｍｍを超える場合を△で示した。The results of these tests are shown in Tables 3 and 4 below. However, regarding the state of melting loss, cases where the maximum amount of melting loss on the inner surface of the sleeve relative to the dimensions before use is 0.1 mm or less are indicated by ◎, cases where it exceeds 0.1 mm and 0.3 mm or less are indicated by ○, and 0. Cases exceeding 3 mm are indicated by △.
【００２４】[0024]
【表３】[Table 3]
【００２５】[0025]
【表４】[Table 4]
【００２６】この表３及び表４から明らかなように、実
施例１乃至７に係るスリーブはいずれも内面の硬度が高
く耐摩耗性が優れていると共に、伸びが大きく耐衝撃性
が優れていた。また、実施例１乃至７に係るスリーブは
１００００回ショットした後にも殆ど溶損されておらず
、割れも発生しなかった。As is clear from Tables 3 and 4, the sleeves according to Examples 1 to 7 all had high inner hardness and excellent wear resistance, as well as high elongation and excellent impact resistance. . In addition, the sleeves according to Examples 1 to 7 were hardly eroded and damaged even after being shot 10,000 times, and no cracks occurred.
【００２７】一方、比較例２，３，６及び従来例２は伸
びが０．８％以下と極めて低く、割れが発生した。また
、その他の比較例１，４，５及び従来例１はいずれも溶
損量が０．１ｍｍを超えており、耐溶損性が悪いもので
あった。On the other hand, in Comparative Examples 2, 3, and 6 and Conventional Example 2, the elongation was extremely low at 0.8% or less, and cracks occurred. Further, in other Comparative Examples 1, 4, and 5 and Conventional Example 1, the amount of erosion loss exceeded 0.1 mm, and the erosion resistance was poor.
【００２８】なお、本発明において使用可能なセラミッ
クスは上述のＳｉＣ及びＷＣに限定されるものではなく
、Ｃｒ２ Ｏ３ 、ＴｉＯ２ 、ＺｒＯ２ 、ＭｇＯ及
びＹ２ Ｏ３ 等の酸化物系セラミックス、Ｓｉ３ Ｎ
４ 、ＴｉＮ、ＢＮ及びＡｌＮ等の窒化物系セラミック
ス、ＴｉＣ、Ｂ４ Ｃ及びＣｒＣ２等の炭化物系セラミ
ックス、ＺｒＢ２ 及びＴｉＢ２ 等のホウ化物系セラ
ミックス並びにサイアロン等、種々のものを使用するこ
とができる。また、これらのセラミックスを２種類以上
混合して使用することもできる。The ceramics that can be used in the present invention are not limited to the above-mentioned SiC and WC, but also include oxide ceramics such as Cr2O3, TiO2, ZrO2, MgO and Y2O3, and Si3N.
4, nitride ceramics such as TiN, BN, and AlN, carbide ceramics such as TiC, B4C, and CrC2, boride ceramics such as ZrB2 and TiB2, and sialon can be used. Moreover, two or more types of these ceramics can be mixed and used.
【００２９】また、上述の実施例はコールドチャンバ用
スリーブについてのものであるが、この外、コールドチ
ャンバ用プランジャーチップ及びスリーブブッシュ、ホ
ットチャンバ用スリーブ、プランジャーリング、プラン
ジャーチップ及びノズル並びに溶湯輸送管等のダイカス
トマシン用射出部品についても、Ｍｏ又はＭｏ合金の粉
粒体とチタン又はチタン合金の粉粒体とセラミックス粉
粒体とから作られた複合材料により形成することができ
る。[0029]Although the above-mentioned embodiments relate to sleeves for cold chambers, in addition to these, plunger tips and sleeve bushes for cold chambers, sleeves for hot chambers, plunger rings, plunger tips and nozzles, and molten metal Injection parts for die casting machines such as transport pipes can also be formed from a composite material made from Mo or Mo alloy powder, titanium or titanium alloy powder, and ceramic powder.
【００３０】[0030]
【発明の効果】以上説明したように本発明に係るダイカ
ストマシン用射出部品は、溶湯と接触する部分の少なく
とも一部が所定量のＭｏ又はＭｏ合金の粉粒体とチタン
又はチタン合金の粉粒体とセラミックス粉粒体とから作
られた複合材料により形成されているから、これらの部
品の溶損及び摩耗を極めて低く抑制できる。また、耐衝
撃性も優れており、部品の割れを回避できるから、連続
して作業を行うことが可能であり、作業性が優れている
。As explained above, in the injection part for a die casting machine according to the present invention, at least a part of the part that comes into contact with the molten metal contains a predetermined amount of Mo or Mo alloy powder and granules of titanium or titanium alloy. Since it is made of a composite material made from a ceramic body and ceramic powder, it is possible to suppress erosion and wear of these parts to an extremely low level. In addition, it has excellent impact resistance and can avoid cracking of parts, allowing continuous work and excellent workability.
Claims (2)
はチタン合金の粉粒体及びセラミックス粉粒体を配合し
焼結させて得た複合材料により、溶湯と接触する部分の
少なくとも一部が形成されており、前記Ｍｏ又はＭｏ合
金の粉粒体は０．１乃至５０体積％配合してあることを
特徴とするダイカストマシン用射出部品。Claim 1: A composite material obtained by blending and sintering Mo or Mo alloy powder, titanium or titanium alloy powder, and ceramic powder allows at least a portion of the part that comes into contact with the molten metal to An injection part for a die-casting machine, characterized in that the Mo or Mo alloy powder and granules are blended in an amount of 0.1 to 50% by volume.
が０．１乃至５０％であることを特徴とする請求項１に
記載のダイカストマシン用射出部品。2. The injection part for a die casting machine according to claim 1, wherein the volume content of the ceramic powder is 0.1 to 50%.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3025408A JPH0784601B2 (en) | 1991-01-24 | 1991-01-24 | Injection parts for die casting machine |
| DE4201781A DE4201781C2 (en) | 1991-01-24 | 1992-01-23 | Injection part for a die casting machine |
| GB9201411A GB2253213B (en) | 1991-01-24 | 1992-01-23 | Injection part for die-casting machines |
| KR1019920000912A KR960006046B1 (en) | 1991-01-24 | 1992-01-23 | Injection part for die-casting machines |
| FR9200789A FR2672056B1 (en) | 1991-01-24 | 1992-01-24 | INJECTION MEMBER FOR PRESSURE CASTING MACHINES. |
| CA002060028A CA2060028C (en) | 1991-01-24 | 1992-01-24 | Injection part for die-casting machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3025408A JPH0784601B2 (en) | 1991-01-24 | 1991-01-24 | Injection parts for die casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04247804A true JPH04247804A (en) | 1992-09-03 |
| JPH0784601B2 JPH0784601B2 (en) | 1995-09-13 |
Family
ID=12165092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3025408A Expired - Lifetime JPH0784601B2 (en) | 1991-01-24 | 1991-01-24 | Injection parts for die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0784601B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197220A (en) * | 1995-01-23 | 1996-08-06 | Tokyo Yogyo Co Ltd | Sleeve for die casting machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6745754B2 (en) | 2017-04-28 | 2020-08-26 | 東京窯業株式会社 | Metal matrix composite |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02280953A (en) * | 1989-04-21 | 1990-11-16 | Tokyo Yogyo Co Ltd | Injecting parts for die casting machine |
-
1991
- 1991-01-24 JP JP3025408A patent/JPH0784601B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02280953A (en) * | 1989-04-21 | 1990-11-16 | Tokyo Yogyo Co Ltd | Injecting parts for die casting machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197220A (en) * | 1995-01-23 | 1996-08-06 | Tokyo Yogyo Co Ltd | Sleeve for die casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0784601B2 (en) | 1995-09-13 |
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