JPH0617176A - Corrosion and wear resistant co-based alloy - Google Patents
Corrosion and wear resistant co-based alloyInfo
- Publication number
- JPH0617176A JPH0617176A JP4199114A JP19911492A JPH0617176A JP H0617176 A JPH0617176 A JP H0617176A JP 4199114 A JP4199114 A JP 4199114A JP 19911492 A JP19911492 A JP 19911492A JP H0617176 A JPH0617176 A JP H0617176A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- corrosion
- content
- based alloy
- corrosion resistance
- 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.)
- Pending
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、射出成形機や押出成形
機のシリンダ、スクリュー、プランジヤ等、耐食性と耐
摩耗性を必要とする各種部材の構成材料として有用なＣ
ｏ基合金に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is useful as a constituent material for various members such as cylinders, screws and plungers of injection molding machines and extrusion molding machines, which require corrosion resistance and wear resistance.
o-based alloys.
【０００２】[0002]
【従来の技術】射出成形機や押出成形機を構成するシリ
ンダ、およびスクリュー、プランジヤ等の部材は高圧力
・高速度で圧送される流動体の接触に対する摩耗抵抗性
や腐食抵抗性が要求される。従来より、その材料として
窒化鋼（ＪＩＳ Ｇ４２０２，ＳＡＣＭ６４５等）が専
ら使用されてきた。2. Description of the Related Art Cylinders constituting an injection molding machine or an extrusion molding machine, and members such as screws and plungers are required to have wear resistance and corrosion resistance against contact of fluids which are pumped at high pressure and high speed. . Conventionally, nitrided steel (JIS G4202, SACM645, etc.) has been exclusively used as the material.
【０００３】[0003]
【発明が解決しようとする課題】窒化鋼の表面の有効窒
化層厚は、約０．５ｍｍ程度に過ぎず、このため窒化鋼
を使用している従来の射出成形機や押出成形機の耐久性
は必ずしも十分なものと言えない。殊に、近時は繊維強
化プラスチック成形品、プラスチックマグネット、ある
いはセラミックス成形品等に対する需要が増大しつつあ
り、これらの成形品の成形操業における部材表面の摩耗
・腐食の進行、およびそれに伴う耐用寿命の低下は顕著
であり、生産機として対応することは極めて困難な状況
となっている。この対策として、本出願人は、先にＣ
ｒ：５〜２０％，Ｍｏ：５〜２０％，Ｗ：５〜１５％，
Ｂ：０．５〜４％，Ｓｉ：０．５〜３％，Ｃ１．５％以
下，残部Ｃｏからなる、改良された耐食性および耐摩耗
性を有するＣｏ基合金を提供した（特開平１−２７２７
３２号公報）。本発明は、上記Ｃｏ基合金と同等ないし
それ以上の耐食性・耐摩耗性を有し、構造材料として必
要な強度、靱性を備えたＣｏ基合金を提供するものであ
る。The effective nitriding layer thickness on the surface of nitrided steel is only about 0.5 mm, and therefore the durability of conventional injection molding machines and extrusion molding machines using nitrided steel is improved. Is not always sufficient. In particular, the demand for fiber-reinforced plastic moldings, plastic magnets, ceramics moldings, etc., has recently been increasing, and the wear and corrosion of the surface of members during the molding operation of these moldings and the resulting service life have been increasing. It is extremely difficult to deal with it as a production machine. As a countermeasure against this, the applicant has previously proposed C
r: 5-20%, Mo: 5-20%, W: 5-15%,
A Co-based alloy comprising B: 0.5 to 4%, Si: 0.5 to 3%, C 1.5% or less, and the balance Co having improved corrosion resistance and wear resistance is provided (JP-A-1- 2727
No. 32). The present invention provides a Co-based alloy that has corrosion resistance and wear resistance equal to or higher than those of the Co-based alloy described above and that has strength and toughness necessary as a structural material.
【０００４】[0004]
【課題を解決するための手段および作用】本発明の耐食
耐摩耗性Ｃｏ基合金は、Ｃｒ：５〜２０％，Ｍｏ：７〜
３０％，Ｂ：０．１〜６％，Ｗ：０．５〜３０％（但
し、Ｗ：５〜１５％であって、かつＢ：０．５〜４％で
ある場合を除く），Ｓｉ：０．５〜３％，Ｃ：１．５％
以下，残部実質的にＣｏからなる化学組成を有してい
る。Means and Actions for Solving the Problems Corrosion-resistant and wear-resistant Co-based alloys of the present invention are Cr: 5-20%, Mo: 7-
30%, B: 0.1 to 6%, W: 0.5 to 30% (except for W: 5 to 15% and B: 0.5 to 4%), Si : 0.5-3%, C: 1.5%
The balance below has a chemical composition consisting essentially of Co.
【０００５】[0005]
【作用】上記化学組成を有する本発明のＣｏ基合金は、
各種の無機酸，有機酸に対する腐食抵抗性にすぐれ、か
つ高度の摩耗抵抗性を備えている。本発明のＣｏ基合金
は、代表的には、その合金粉末を原料とする熱間静水等
方加圧焼結法等による焼結合金として実使用に供される
が、Ｂ含有量を比較的高めの範囲に設定した成分構成に
おいては、高Ｂ含有による合金の低融点化の効果とし
て、部材の製造に、その合金粉末を原料とする溶解・凝
固プロセスを適用することもできる。The Co-based alloy of the present invention having the above chemical composition is
It has excellent corrosion resistance to various inorganic and organic acids and has a high degree of wear resistance. The Co-based alloy of the present invention is typically put to practical use as a sintered alloy using the alloy powder as a raw material by a hot isostatic pressing method such as hydrostatic isostatic pressing. With the composition of components set in a higher range, as an effect of lowering the melting point of the alloy due to the high B content, a melting / solidification process using the alloy powder as a raw material can be applied to the production of the member.
【０００６】本発明のＣｏ基合金の成分限定理由は次の
とおりである。 Ｃｒ：５〜２０％ Ｃｒは、一部はマトリックスに固溶して合金の耐食性を
高め、残部は炭化物、硼化物を形成して合金の硬度を高
め耐摩耗性を強化する。含有量の下限を５％としたの
は、それより少ない量ではこれらの効果が不足するから
であり、その増量に従って効果は増大する。特に、耐食
性の強化を必要とする場合は、Ｃｒ含有量を、〔１．４
２（Ｂ＋１／２Ｃ）＋１１．９〕（％）（以下、「Ｃｒ
％」）以上としてＣｒの固溶量を富化するとよい。２０
％までの含有量で効果はほぼ飽和するので、これを上限
とした。The reasons for limiting the components of the Co-based alloy of the present invention are as follows. Cr: 5 to 20% Cr partly forms a solid solution in the matrix to enhance the corrosion resistance of the alloy, and the balance forms carbides and borides to increase the hardness of the alloy and enhance the wear resistance. The reason why the lower limit of the content is 5% is that these effects are insufficient with a smaller amount, and the effect increases as the amount increases. In particular, when it is necessary to strengthen the corrosion resistance, the Cr content should be [1.4
2 (B + 1 / 2C) +11.9] (%) (hereinafter, " Cr
% ") Or more, so as to enrich the solid solution amount of Cr. 20
Since the effect is almost saturated when the content is up to%, this is the upper limit.
【０００７】Ｍｏ：７〜３０％ Ｍｏは、炭化物、硼化物を形成して合金の耐摩耗性を高
め、また炭化物、硼化物を形成せずにマトリックスに固
溶したＭｏは、耐食性、殊に塩酸等の非酸化性酸に対す
る腐食抵抗性の改善に寄与する。これらの効果を得るた
めには少なくとも７％の含有を必要とする。特に、耐食
性の強化を必要とする場合は、その含有量を、〔４．７
（Ｂ＋１／２Ｃ）＋７〕（％）（以下、「Ｍｏ％」）以
上としてＭｏの固溶量を増加するとよい。図１は、合金
のＭｏ含有量と耐食性について、縦軸に塩酸腐食減量
（ｇ／ｍ2 ／ｈｒ）、横軸に、Ｍｏ含有量から、Ｍｏ％
を差し引いた値（ΔＭｏ％）をとって示した図（供試合
金は後記実施例欄の供試材Ｎo.１〜６，Ｎo.１０１〜１
０６）であり、そのΔＭｏ％が正の値となるＭｏ量の含
有により、合金の耐食性は著しく強化されることがわか
る。しかし、Ｍｏ含有量をあまり多くすると、合金の脆
化をきたすので、３０％を上限とする。Mo: 7 to 30% Mo forms carbides and borides to enhance the wear resistance of the alloy, and Mo which forms a solid solution in the matrix without forming carbides and borides has corrosion resistance, especially It contributes to the improvement of corrosion resistance to non-oxidizing acids such as hydrochloric acid. In order to obtain these effects, it is necessary to contain at least 7%. In particular, when it is necessary to enhance the corrosion resistance, the content is [4.7
(B + 1 / 2C) +7] (%) (hereinafter, “ Mo% ”) or more is preferable to increase the solid solution amount of Mo. Figure 1, for the Mo content and the corrosion resistance of the alloy, hydrochloric corrosion weight loss on the vertical axis (g / m 2 / hr) , the horizontal axis, the Mo content, Mo%
The figure which took and took the value ((DELTA) Mo%) which deducted (The match money is No. 1-6 of the below-mentioned Example column, No. 101-1, No. 101-1.
06), and it can be seen that the corrosion resistance of the alloy is remarkably enhanced by the inclusion of the amount of Mo whose ΔMo% has a positive value. However, if the Mo content is too large, the alloy becomes brittle, so the upper limit is 30%.
【０００８】Ｗ：０．５〜３０％ Ｗは、炭化物、硼化物を形成して合金の硬度、耐摩耗性
を高める。また、Ｗは若干ではあるが耐食性を良好にす
る。この効果は０．５％以上の含有により得られ、含有
量の増加に伴って効果は増大する。しかし、Ｗの多量添
加は反面において合金の曲げ強度、靱性の低下をきたす
ので、３０％を上限とする。W: 0.5 to 30% W forms carbides and borides to enhance the hardness and wear resistance of the alloy. Moreover, although W is slight, it improves the corrosion resistance. This effect is obtained when the content is 0.5% or more, and the effect increases as the content increases. However, addition of a large amount of W, on the other hand, lowers the bending strength and toughness of the alloy, so the upper limit is 30%.
【０００９】Ｂ：０．１〜６％ Ｂは、Ｃｒ，Ｍｏ，Ｗ等の硼化物の形成のために少なく
とも０．１％を必要とする。しかし、その含有量が６％
を越えると靱性が著しく低下するので、６％を越えては
ならない。Ｂ含有量の８倍量とＷ含有量との合計量（８
Ｂ＋Ｗ）は、合金の硬度、靱性等に相関がある。図２お
よび図３は、合金の８Ｂ＋Ｗ（％）と硬度（ＨRC）およ
び破壊靱性値（ＭＰａｍ1/2 ）の関係を示している（供
試合金は後記実施例欄の供試材Ｎo.１〜６，Ｎo.１０１
〜１０６）。硬度は、８Ｂ＋Ｗ（％）の値に比例して高
くなり（図２）、他方靱性は減少し（図３）、それぞれ
８Ｂ＋Ｗ（％）の値との間に高度の相関性を有してお
り、従ってその値から硬度および靱性値を予測すること
ができる。合金の硬度、耐摩耗性をより高くするために
は、８Ｂ＋Ｗ（％）を９％以上とするのが好ましい。し
かし、その値が余り高くなると、合金の脆化をきたし、
製品製造途中のクラック発生傾向が増大する。このた
め、４５％を上限とするのが好ましい。特に靱性を必要
とする用途では、Ｗ含有量を２０％以下とし、かつ８Ｂ
＋Ｗ（％）の値を３０％以下とするのがよい。B: 0.1 to 6% B requires at least 0.1% for the formation of borides such as Cr, Mo and W. However, its content is 6%
If it exceeds 1.0%, the toughness is remarkably reduced, so 6% should not be exceeded. Total amount of 8 times B content and W content (8
B + W) has a correlation with the hardness and toughness of the alloy. 2 and 3 show the relationship between the alloy 8B + W (%) and the hardness (H RC ) and the fracture toughness value (MPam 1/2 ) (the match money is the test material No. in the Example section described later). 1-6, No. 101
~ 106). The hardness increases in proportion to the value of 8B + W (%) (Fig. 2), while the toughness decreases (Fig. 3), and each has a high degree of correlation with the value of 8B + W (%). Therefore, it is possible to predict hardness and toughness values from the values. In order to further increase the hardness and wear resistance of the alloy, it is preferable that 8B + W (%) be 9% or more. However, if the value is too high, the alloy becomes brittle,
The tendency for cracks to occur during product manufacturing increases. Therefore, it is preferable that the upper limit is 45%. Especially for applications requiring toughness, the W content should be 20% or less and 8B
The value of + W (%) is preferably 30% or less.
【００１０】また、Ｂは合金の耐食性、硬度・耐摩耗性
を損なうことなく、融点の低下に奏効する。図４は、Ｂ
含有量と合金の融点の関係を示している（供試合金は後
記実施例欄の供試材Ｎo.１，Ｎo.２，Ｎo.５）。約２．
２％以上のＢ含有量により、融点は約１１５０℃以下と
なっている。このＢ含有による低融点化は合金溶製操業
に有利である。Further, B is effective for lowering the melting point without impairing the corrosion resistance, hardness and wear resistance of the alloy. FIG. 4 shows B
The relationship between the content and the melting point of the alloy is shown (the test money is No. 1, No. 2 and No. 5 of the test piece in the Examples column described later). About 2.
With a B content of 2% or more, the melting point is about 1150 ° C. or less. The lowering of the melting point by containing B is advantageous for the alloy melting operation.
【００１１】Ｓｉ：０．５〜３％ Ｓｉは、Ｃｒ，Ｍｏ，Ｗ等の元素と化合物を形成して合
金の耐摩耗性の向上に寄与する。また、Ｓｉの含有によ
り合金の融点が降下することは合金の溶製操業に有利で
ある。これらの効果を得るために、少なくとも０．５％
の含有量が必要である。しかし、３％を越えて多量に含
有すると合金の脆化をきたし、構造材料としての有用性
を損なうので、これを上限とした。Si: 0.5-3% Si forms a compound with elements such as Cr, Mo and W, and contributes to the improvement of the wear resistance of the alloy. Further, the melting point of the alloy is lowered due to the inclusion of Si, which is advantageous for the melting operation of the alloy. At least 0.5% to obtain these effects
Is required. However, if it is contained in a large amount exceeding 3%, the alloy becomes brittle and the usefulness as a structural material is impaired, so this was made the upper limit.
【００１２】Ｃ：１．５％以下 Ｃは、Ｃｒ，Ｍｏ，Ｗ等の炭化物の形成に必要な元素で
あり、また合金の融点を下げ、合金溶製操業を有利にす
る。しかし、含有量が１．５％を越えると、合金の脆化
をきたし構造材料としての有用性を損なうので、１．５
％以下とする。C: 1.5% or less C is an element necessary for forming carbides such as Cr, Mo and W, and lowers the melting point of the alloy to make the alloy melting operation advantageous. However, if the content exceeds 1.5%, the alloy becomes brittle and the usefulness as a structural material is impaired.
% Or less.
【００１３】本発明のＣｏ基合金は、例えばその合金粉
末を焼結原料とし、熱間静水等方加圧焼結法等の公知の
焼結プロセスにより、シリンダ、スクリュー等の母材金
属の表面を被覆する焼結合金層を形成する。また、前記
のようにＢ含有量を高めて合金の融点を下げることによ
り、焼結プロセスに代え、溶融・凝固プロセスを適用す
ることも容易となり、例えば、融点約１１５０℃以下の
低融点成分構成とした場合は、普通鋼々材（例えばＳＳ
４１材）を母材金属とし、その表面に低融点合金粉末を
与えて粉末の溶融・凝固を行うことにより、母材の溶損
をきたすことなく、その表面に冶金的に接合した緻密な
合金層を積層形成することも可能である。The Co-based alloy of the present invention uses, for example, the alloy powder as a sintering raw material, and is subjected to a known sintering process such as hot isostatic pressing under the isostatic pressing method on the surface of a base metal such as a cylinder or a screw. Forming a sintered alloy layer covering the. Also, by increasing the B content and lowering the melting point of the alloy as described above, it becomes easy to apply a melting / solidifying process instead of the sintering process. For example, a low melting point component composition having a melting point of about 1150 ° C. or less can be used. In the case of, ordinary steel materials (eg SS
No. 41) is a base metal, and a low melting point alloy powder is applied to the surface of the base metal to melt and solidify the powder, so that a dense alloy metallurgically bonded to the surface without causing melting loss of the base material. It is also possible to stack layers.
【００１４】[0014]
【実施例】表１に示す各供試合金について、腐食試験、
摩耗試験および機械試験を行って、表２に示す結果を得
た。供試合金Ｎo.１〜６は発明例、Ｎo.１０１〜１０８
は比較例であり、比較例Ｎo.１０１〜１０３は、前記特
開平１−２７２７３２号公報に開示された合金相当材、
Ｎo.１０４〜１０６は、いずれかの元素（＊マーク）が
本発明に規定の上・下限からはずれている例、Ｎo.１０
７は「ステライト１２」相当の市販Ｃｏ基合金、Ｎo.１
０８は窒化鋼（ＪＩＳ Ｇ４２０２ ＳＡＣＭ６４５，
表面窒化層厚０．５ｍｍ）である。[Example] For each match shown in Table 1, a corrosion test,
An abrasion test and a mechanical test were performed and the results shown in Table 2 were obtained. Match money No. 1 to 6 are invention examples, No. 101 to 108
Is a comparative example, and comparative examples No. 101 to 103 are alloy equivalent materials disclosed in the above-mentioned JP-A-1-272732,
Nos. 104 to 106 are examples in which any element (* mark) deviates from the upper and lower limits specified in the present invention, No. 10
7 is a commercial Co-based alloy equivalent to "Stellite 12", No. 1
08 is nitrided steel (JIS G4202 SACM645,
The surface nitrided layer thickness is 0.5 mm).
【００１５】各試験要領は次のとおりである。 〔Ｉ〕腐食試験 次の４種の腐食液（液温：５０℃）に試験片を浸漬し、
４８時間経過後の腐食減量（ｇ／ｍ2 ｈｒ）を測定す
る。 試験Ａ：１０％弗化水素酸水溶液 試験Ｂ：１０％臭化水素酸水溶液 試験Ｃ：２０％塩酸水溶液 試験Ｄ：５０％硫酸水溶液The test procedures are as follows. [I] Corrosion test The test piece was immersed in the following four kinds of corrosive liquids (liquid temperature: 50 ° C),
The corrosion weight loss (g / m 2 hr) after 48 hours is measured. Test A: 10% hydrofluoric acid aqueous solution Test B: 10% hydrobromic acid aqueous solution Test C: 20% hydrochloric acid aqueous solution Test D: 50% sulfuric acid aqueous solution
【００１６】〔ＩＩ〕摩耗試験 大越式迅速摩耗試験機を使用し、下記の摩耗試験により
摩耗減量（ｍｍ2 ／ｋｇｆ）を測定する。 （１）相手材（回転輪）：ＳＵＪ２，硬さ（ＨRC）：５
８〜６０ （２）押付荷重：６．３ｋｇ／ｃｍ2 （３）摺接速度：１．９３ｍ／秒 （４）摺接距離：４００ｍ[II] Abrasion test Using an Ogoshi type rapid abrasion tester, the abrasion loss (mm 2 / kgf) is measured by the following abrasion test. (1) Counterpart material (rotating wheel): SUJ2, hardness (H RC ): 5
8-60 (2) Pressing load: 6.3 kg / cm 2 (3) Sliding contact speed: 1.93 m / sec (4) Sliding contact distance: 400 m
【００１７】表２に示したように、発明例Ｎo.１〜６
は、窒化鋼（Ｎo.１０８）に比べて、各種の酸に対する
腐食抵抗性および摩耗抵抗性のいずれも格段にすぐれて
いる。また、その耐摩耗性は「ステライト１２」Ｃｏ基
合金（Ｎo.１０７）と比べても明らかにすぐれている。
「ステライト１２」Ｃｏ基合金との耐食性の比較におい
て、発明例Ｎo.３，Ｎo.４，Ｎo.５の耐食性は若干低い
が、その耐食性は発明例Ｎo.６との比較から明らかなよ
うに、Ｃｒ含有量，Ｍｏ含有量を、Ｃｒ％、Ｍｏ％以上
の量とすることにより大きく高め得ることがわかる。な
お、比較例Ｎo.１０４（Ｂ含有量過剰）は、硬度、耐摩
耗性にすぐれてはいるが、靱性値が極端に低く、Ｎo.１
０５（Ｍｏ含有量不足）は塩酸に対する耐食性に劣り、
またＮo.１０６（Ｃｒ含有量不足）は硫酸に対する耐食
性に乏しく、いずれも発明例に及ばない。As shown in Table 2, Invention Examples No. 1 to 6
Has significantly better corrosion resistance to various acids and wear resistance than nitriding steel (No. 108). Also, its wear resistance is clearly superior to that of "Stellite 12" Co-based alloy (No. 107).
In comparison with the corrosion resistance of "Stellite 12" Co-based alloy, the corrosion resistances of Inventive Examples No. 3, No. 4 and No. 5 are slightly lower, but the corrosion resistance is clear from the comparison with Inventive Example No. 6. It can be seen that the Cr content and Cr content and the Mo content can be significantly increased by adjusting the content to be Cr% , Mo% or more. Although Comparative Example No. 104 (excess B content) is excellent in hardness and wear resistance, it has an extremely low toughness value.
05 (insufficient Mo content) has poor corrosion resistance to hydrochloric acid,
Further, No. 106 (insufficient Cr content) has poor corrosion resistance to sulfuric acid, and neither of them is equal to the invention examples.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】[0020]
【発明の効果】本発明のＣｏ基合金は、窒化鋼等を大き
く凌ぐ耐摩耗性と耐食性とを備えているので、例えば射
出成形機・押出成形機のシリンダ、スクリュー、プラン
ジヤ等の部材料として、その耐用寿命を改善することが
でき、通常のプラスチック成形はもとより、繊維強化プ
ラスチックやセラミックス等の射出・押出成形操業の安
定化・効率化等に寄与する。Since the Co-based alloy of the present invention has wear resistance and corrosion resistance that greatly surpass those of nitrided steel and the like, it can be used as a material for parts such as cylinders, screws and plungers of injection molding machines and extrusion molding machines. , Its service life can be improved, and it contributes not only to ordinary plastic molding but also to stabilization and efficiency of injection / extrusion molding operations of fiber reinforced plastics and ceramics.
【図１】ΔＭｏ量と耐塩酸腐食性の関係を示すグラフで
ある。FIG. 1 is a graph showing the relationship between the ΔMo amount and hydrochloric acid corrosion resistance.
【図２】８Ｂ＋Ｗ（％）と硬度の関係を示すグラフであ
る。FIG. 2 is a graph showing a relationship between 8B + W (%) and hardness.
【図３】８Ｂ＋Ｗ（％）と破壊靱性値の関係を示すグラ
フである。FIG. 3 is a graph showing a relationship between 8B + W (%) and a fracture toughness value.
【図４】Ｂ含有量と融点の関係を示すグラフである。FIG. 4 is a graph showing the relationship between the B content and the melting point.
Claims (2)
Ｗ：０．５〜３０％，Ｂ：０．１〜６％（但し、Ｗ：５
〜１５％であって、かつＢ：０．５〜４％である場合を
除く），Ｓｉ：０．５〜３％，Ｃ：１．５％以下、残部
実質的にＣｏからなる耐食耐摩耗性Ｃｏ基合金。1. Cr: 5-20%, Mo: 7-30%,
W: 0.5 to 30%, B: 0.1 to 6% (however, W: 5
˜15% and B: 0.5 to 4%), Si: 0.5 to 3%, C: 1.5% or less, and the balance is corrosion resistance and wear consisting essentially of Co. Co-based alloy.
が８Ｂ＋Ｗ：９〜４５％を満足することを特徴とする耐
食耐摩耗性Ｃｏ基合金。2. The corrosion- and wear-resistant Co-based alloy according to claim 1, wherein the W and B contents satisfy 8B + W: 9 to 45%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199114A JPH0617176A (en) | 1992-07-01 | 1992-07-01 | Corrosion and wear resistant co-based alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199114A JPH0617176A (en) | 1992-07-01 | 1992-07-01 | Corrosion and wear resistant co-based alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0617176A true JPH0617176A (en) | 1994-01-25 |
Family
ID=16402368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4199114A Pending JPH0617176A (en) | 1992-07-01 | 1992-07-01 | Corrosion and wear resistant co-based alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617176A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1704263A2 (en) * | 2003-12-29 | 2006-09-27 | Deloro Stellite Holdings Corporation | Ductile cobalt-based laves phase alloys |
| WO2012063512A1 (en) * | 2010-11-09 | 2012-05-18 | 福田金属箔粉工業株式会社 | Wear-resistant cobalt-based alloy and engine valve coated with same |
| US9206715B2 (en) | 2010-11-09 | 2015-12-08 | Fukuda Metal Foil & Powder Co., Ltd. | High-toughness cobalt-based alloy and engine valve coated with same |
| US9860988B2 (en) | 2014-12-20 | 2018-01-02 | Intel Corporation | Solder contacts for socket assemblies |
| CN112695229A (en) * | 2020-12-04 | 2021-04-23 | 中国科学院上海应用物理研究所 | Cobalt-based alloy resistant to high temperature fluoride salt corrosion and preparation method thereof |
| JP2021080542A (en) * | 2019-11-22 | 2021-05-27 | 株式会社日本製鋼所 | Sintered material and method for producing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01272738A (en) * | 1988-04-21 | 1989-10-31 | Kubota Ltd | Corrosion-resistant and wear-resistant alloy |
-
1992
- 1992-07-01 JP JP4199114A patent/JPH0617176A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01272738A (en) * | 1988-04-21 | 1989-10-31 | Kubota Ltd | Corrosion-resistant and wear-resistant alloy |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1704263A2 (en) * | 2003-12-29 | 2006-09-27 | Deloro Stellite Holdings Corporation | Ductile cobalt-based laves phase alloys |
| EP1704263A4 (en) * | 2003-12-29 | 2009-06-03 | Deloro Stellite Holdings Corp | Ductile cobalt-based laves phase alloys |
| WO2012063512A1 (en) * | 2010-11-09 | 2012-05-18 | 福田金属箔粉工業株式会社 | Wear-resistant cobalt-based alloy and engine valve coated with same |
| JP5486093B2 (en) * | 2010-11-09 | 2014-05-07 | 福田金属箔粉工業株式会社 | Wear-resistant cobalt base alloy and engine valve |
| US9206319B2 (en) | 2010-11-09 | 2015-12-08 | Fukuda Metal Foil & Powder Co., Ltd. | Wear-resistant cobalt-based alloy and engine valve coated with same |
| US9206715B2 (en) | 2010-11-09 | 2015-12-08 | Fukuda Metal Foil & Powder Co., Ltd. | High-toughness cobalt-based alloy and engine valve coated with same |
| US9860988B2 (en) | 2014-12-20 | 2018-01-02 | Intel Corporation | Solder contacts for socket assemblies |
| US10321573B2 (en) | 2014-12-20 | 2019-06-11 | Intel Corporation | Solder contacts for socket assemblies |
| JP2021080542A (en) * | 2019-11-22 | 2021-05-27 | 株式会社日本製鋼所 | Sintered material and method for producing the same |
| CN112695229A (en) * | 2020-12-04 | 2021-04-23 | 中国科学院上海应用物理研究所 | Cobalt-based alloy resistant to high temperature fluoride salt corrosion and preparation method thereof |
| CN112695229B (en) * | 2020-12-04 | 2022-03-04 | 中国科学院上海应用物理研究所 | Cobalt-based alloy resistant to high temperature fluoride salt corrosion and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4029000A (en) | Injection pump for injecting molten metal | |
| JPS63162801A (en) | Manufacture of screw for resin processing machine | |
| JPH10504063A (en) | Boron carbide cermet structural material with high bending strength at high temperature | |
| JPH0617176A (en) | Corrosion and wear resistant co-based alloy | |
| JPH0759730B2 (en) | Corrosion and wear resistant alloys for plastic injection molding and extrusion machines | |
| KR950007666B1 (en) | Low-friction structure and method of making the same | |
| JPH0617177A (en) | Corrosion and wear resistant co-based alloy | |
| JPH0657360A (en) | Corrosion resistant and wear resistant ni-base alloy | |
| US6200524B1 (en) | Method of manufacturing of a mechanical face seal | |
| JPH0971848A (en) | High speed steel base powder alloy excellent in corrosion resistance | |
| JP4279935B2 (en) | Hard grain dispersed sintered steel and method for producing the same | |
| JPS61143547A (en) | Cylinder for plastic molding apparatus | |
| JP4353617B2 (en) | Corrosion-resistant and wear-resistant Ni alloys and parts for plastic kneaders and molding machines | |
| JP2997994B2 (en) | Surface hardened coating containing free carbon | |
| JP4976626B2 (en) | Sintered alloy material, method for producing the same, and mechanical structural member using the same | |
| JP3368178B2 (en) | Manufacturing method of composite sintered alloy for non-ferrous metal melt | |
| JPS6362802A (en) | Porous metallic sintered body | |
| JP3464632B2 (en) | Bearings for continuous hot metal plating equipment | |
| JP2564528B2 (en) | High corrosion and wear resistant tools, materials for parts | |
| JP3229140B2 (en) | Corrosion-resistant wear-resistant high-strength Ni-base alloy and its composite material | |
| JPH08134570A (en) | Composite material having high corrosion resistance and wear resistance | |
| JPS62273820A (en) | Composite cylinder for plastic molding apparatus | |
| JP3373372B2 (en) | Si-added NiW2B base alloy and mechanical structural member | |
| JPS61266530A (en) | Composite material | |
| JP2936296B2 (en) | Corrosion and wear resistant alloy for non-ferrous molten metal |