JPS6314852A - Wear resistant film, its formation and starting material therefor - Google Patents
Wear resistant film, its formation and starting material thereforInfo
- Publication number
- JPS6314852A JPS6314852A JP61157112A JP15711286A JPS6314852A JP S6314852 A JPS6314852 A JP S6314852A JP 61157112 A JP61157112 A JP 61157112A JP 15711286 A JP15711286 A JP 15711286A JP S6314852 A JPS6314852 A JP S6314852A
- Authority
- JP
- Japan
- Prior art keywords
- tic
- film
- coating
- cr3c2
- wear
- 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
- 239000007858 starting material Substances 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims description 35
- 239000011248 coating agent Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 16
- 229910003470 tongbaite Inorganic materials 0.000 abstract description 17
- 239000002245 particle Substances 0.000 abstract description 9
- 239000003921 oil Substances 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 10
- 238000007751 thermal spraying Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- 230000014759 maintenance of location Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は耐摩耗性被膜、その形成方法及びそのための原
料粉末に係り、特に保油性が高く耐摩耗性に著しく優れ
た被膜、その形成方法及びそのための原料に関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a wear-resistant coating, a method for forming the same, and a raw material powder therefor, and particularly a coating with high oil retention and extremely excellent wear resistance, and a method for forming the same. and raw materials therefor.
［従来の技術］
機成部品や各種装置の構成材料は、十分な機械的強度以
外に、使用目的に応じた耐摩耗性、耐食性等の特性を備
えていることが必要となる。しかして、耐摩耗性の高い
材料は、多くの場合靭性が低いなど、１種類の材料では
２以上の特性を同時に具備せしめることは容易ではない
。[Prior Art] In addition to sufficient mechanical strength, the constituent materials of mechanical parts and various devices are required to have characteristics such as wear resistance and corrosion resistance depending on the purpose of use. However, materials with high wear resistance often have low toughness, and it is not easy for one type of material to have two or more properties at the same time.
そこで、部材表面に耐摩耗性の高い材料を被覆する表面
処理法が種々開発されている。Therefore, various surface treatment methods have been developed in which the surfaces of components are coated with highly wear-resistant materials.
このような表面処理方法には、メッキ、はうろう引き、
蒸着、溶射、肉盛り爆接、など各種のものが知られてい
る。このうち、溶射法によれば、部材表面に金属やセラ
ミックスなどを溶融状態にし高速度で基板に衝突させ被
膜を形成させるものであるところから、各種の金属やセ
ラミックス或いはこれらを複合したサーメットの被膜を
形成できる。そして、例えば金属を溶射することにより
防食性、耐熱性、導電性等の特性を具備せしめることが
できる。Such surface treatment methods include plating, waxing,
Various methods are known, such as vapor deposition, thermal spraying, and explosive welding. Among these methods, thermal spraying involves forming a coating on the surface of a component by molten metals, ceramics, etc. and colliding them with a substrate at high speed. can be formed. For example, by thermally spraying a metal, properties such as corrosion resistance, heat resistance, and electrical conductivity can be imparted.
［発明が解決しようとする問題点コ
部材表面に、例えば硬質金属を溶射した場合には、耐摩
耗性はそれだけ高められるものの、部材が他の部材と摺
動する摺動部材である場合には、摺動摩耗に伴って表面
が過度に平滑になり、焼き付けを起す恐れがある。即ち
、潤滑油を摺動面に供給するタイプのものにおいては、
表面が過度に平滑であると摺動面の油の保持特性（保油
性）が低くなり、油切れを起こして焼き付けを生じ易く
なる。[Problems to be Solved by the Invention] If the surface of a member is thermally sprayed with, for example, hard metal, the wear resistance will be increased accordingly, but if the member is a sliding member that slides on other members, As a result of sliding wear, the surface becomes excessively smooth and there is a risk of seizure. In other words, in the type that supplies lubricating oil to sliding surfaces,
If the surface is excessively smooth, the oil retention property (oil retention) of the sliding surface will be low, and oil will run out, making it easy to seize.
また、セラミックを溶射した場合には、被膜の硬度が高
いところから耐摩耗性を高めることができるが、同様に
部材が摺動部材である場合には、被膜表面の粗度が高い
ので摺動特性がやはり低いものとならざるを得ない。又
、硬度の高いセラミックス被膜が相手材を損傷する恐れ
がある。In addition, when ceramic is thermally sprayed, the hardness of the coating increases the wear resistance, but similarly, when the component is a sliding member, the roughness of the coating surface is high, making it difficult to slide. The characteristics are inevitably poor. Furthermore, there is a risk that the highly hard ceramic coating may damage the mating material.
［問題点を解決するための手段］
本発明の耐摩耗性被膜は、ＴｉＣ９５〜４０重量部とＣ
ｒ３Ｃ２５〜６０重量部とから構成されるものである。[Means for solving the problems] The wear-resistant coating of the present invention contains 95 to 40 parts by weight of TiC and C.
It is composed of 25 to 60 parts by weight of r3C.
また、本発明の耐摩耗性被膜の形成方法は、このような
被膜をＴｉｃとＣｒｇ Ｃ２を原料として、部材表面に
溶射して形成するようにしたものである。Further, in the method of forming a wear-resistant coating of the present invention, such a coating is formed by thermal spraying onto the surface of a member using Tic and Crg C2 as raw materials.
更に、本発明の耐摩耗性被膜形成用の原料は、ＴｉＣ９
５〜４０重量部とＣｒ３Ｃ２５〜６０重量部とを含むも
のである。Furthermore, the raw material for forming the wear-resistant film of the present invention is TiC9.
5 to 40 parts by weight and 25 to 60 parts by weight of Cr3C.
なお、本発明の耐摩耗性被膜あるいはその形成のための
溶射原料は、必要に応じて被膜の靭性、強度、耐食性等
を高める目的でＭｏ、Ｎｉ、Ｃ０１ＮｉＣｒ合金等を適
宜含有するものであっても良い。In addition, the wear-resistant coating of the present invention or the thermal spraying raw material for its formation may contain Mo, Ni, CO1NiCr alloy, etc., as necessary, for the purpose of increasing the toughness, strength, corrosion resistance, etc. of the coating. Also good.
溶射の際の原料として粉末として用いる場合には、Ｔｉ
Ｃの好ましい粒径は５〜６３μｍとりわけ１０〜４４μ
ｍである。またＣｒ３Ｃ２の好ましい粒径は５〜６３μ
ｍとりわけ１０〜４４μｍである。When used as a powder as a raw material for thermal spraying, Ti
The preferred particle size of C is 5 to 63 μm, especially 10 to 44 μm.
It is m. The preferred particle size of Cr3C2 is 5 to 63μ.
m, especially from 10 to 44 μm.
本発明において、耐摩耗性被膜あるいは原料粉末のＴｉ
ＣとＣｒ３Ｃ２との混合率は、ＴｉＣ９５〜４０重量部
、Ｃｒ３Ｃ２５〜６０重量部である。ＴｉＣ含有率がこ
の範囲よりも多くなると、皮膜の靭性が低下し、また、
Ｔｉｃの含有範囲が上記範囲よりも少い場合には、耐摩
耗性が低下する。In the present invention, Ti in the wear-resistant coating or raw material powder is
The mixing ratio of C and Cr3C2 is 95 to 40 parts by weight of TiC and 25 to 60 parts by weight of Cr3C. When the TiC content exceeds this range, the toughness of the film decreases, and
When the content range of Tic is less than the above range, the wear resistance decreases.
このような本発明の原料は、Ｔｉｃと
Ｃｒ３Ｃ２との所定量を混合した後、必要に応じて焼結
あるいは溶解することにより作製される。Such raw materials of the present invention are produced by mixing predetermined amounts of Tic and Cr3C2 and then sintering or melting the mixture as required.
本発明の方法において、ＴｉＣとＣｒ３Ｃ２を原料とし
て部材表面に溶射した後、この被膜の表面に更にレーザ
ビームを照射し、被膜の溶融を促進してもよい。このよ
うなレーザ照射は、原料の溶融が不十分である場合に行
うに好適であるが、十分に溶融した原料が溶射された場
合であっても、溶射膜の密度を増大させる効果がある。In the method of the present invention, after spraying TiC and Cr3C2 as raw materials onto the surface of the member, the surface of the coating may be further irradiated with a laser beam to promote melting of the coating. Such laser irradiation is suitable when the raw material is insufficiently melted, but even when a sufficiently melted raw material is sprayed, it has the effect of increasing the density of the sprayed film.
また、被膜と基板の接合界面をも溶融する事により、そ
の接合強度を高め、あらゆる基板に形成することが可能
になるという効果も併せ持つ。Furthermore, by melting the bonding interface between the coating and the substrate, the bonding strength is increased and it has the effect of being able to be formed on any substrate.
本発明の方法は、部材の材質を問わず殆ど全ての材質の
部材表面に被膜を形成することができる。また、形成す
る被膜の厚さは、溶射時間等の溶射条件を変更すること
により任意に調整することが可能である。The method of the present invention can form a film on the surface of almost any material, regardless of the material of the member. Moreover, the thickness of the coating to be formed can be arbitrarily adjusted by changing spraying conditions such as spraying time.
しかも、このような本発明の方法は、本発明の原料を用
いることにより極めて容易に実施される。Moreover, such a method of the present invention can be carried out extremely easily by using the raw materials of the present invention.
［作用］
本発明の耐摩耗性被膜は、Ｔｉｃ及びＣｒ３Ｃ２を含み
各々の特性を具備する高硬度かつ高融点のセラミックス
複合材からなる被膜であるため、耐熱性、高硬度、化学
的安定性、耐摩耗性、耐スカツフ性に著しく優れたもの
となる。[Function] The wear-resistant coating of the present invention is a coating made of a ceramic composite material with high hardness and high melting point that includes Tic and Cr3C2 and has the respective properties, so it has heat resistance, high hardness, chemical stability, It has extremely excellent wear resistance and scuff resistance.
このような本発明の耐摩耗性被膜は、本発明の方法によ
り極めて有利に形成され、また、本発明の原料は本発明
方法の実施に極めて有用である。Such a wear-resistant coating of the present invention is extremely advantageously formed by the method of the present invention, and the raw material of the present invention is extremely useful for carrying out the method of the present invention.
なお、本発明の方法において、溶射直後あるいは、溶射
した後にレーザ溶融処理した被膜においては、例えば、
Ｔｉｃの含有率が９５〜６０重量部である場合には、第
１図に示すように被膜１はＣｒ３Ｃ２相粒子がＴｉＣ母
相に分散した構造のままであるが、被膜表面１ａが他の
部材と摺動すると、第２図に示すようにＴｉＣよりも硬
度の低いＣｒ３ Ｃ２相の層２が摩滅し、Ｔｉｃ相３が
被膜面から突出するようにして露出し、被膜表面に微小
な多数の凹部５が形成される。この凹部５は良好な油溜
部として作用し、潤滑油の保油性が著しく高くなり、部
材表面の耐摩耗性が著しく向上される。符号４は部材の
本体側を示している。In addition, in the method of the present invention, for example, in the coating treated by laser melting immediately after thermal spraying or after thermal spraying,
When the Tic content is 95 to 60 parts by weight, the coating 1 maintains a structure in which Cr3C2 phase particles are dispersed in the TiC matrix, as shown in FIG. As shown in Fig. 2, the Cr3C2 phase layer 2, which has a lower hardness than TiC, is worn away, and the Tic phase 3 is exposed to protrude from the coating surface, resulting in a large number of minute particles on the coating surface. A recess 5 is formed. This concave portion 5 acts as a good oil reservoir, and the lubricating oil retention property is significantly increased, and the wear resistance of the member surface is significantly improved. Reference numeral 4 indicates the main body side of the member.
［実施例コ
実施例１
１０ｃｍｘｌＯｃｍの大きさの鋼製基板の表面に、本発
明方法に従ってＴｉＣ粉末及びＣｒ３Ｃ２粉末を混合し
てプラズマ溶射し被膜を形成した。[Example 1] TiC powder and Cr3C2 powder were mixed and plasma sprayed to form a coating on the surface of a steel substrate having a size of 10 cm x 10 cm according to the method of the present invention.
用いたＴｉＣ粉末及びＣｒ３Ｃ２粉末の粒径及び溶射条
件は次に示す通りである。The particle sizes of the TiC powder and Cr3C2 powder used and the spraying conditions are as shown below.
配合量
ＴｉＣニア５重量部
Ｃｒ３Ｃ２： ２５重量部
粒 径
ＴｉＣ粉末；１０〜４４μｍ
Ｃｒ３Ｃ２粉末：１０〜４４μｍ
溶射条件
溶射装置：プラズマ溶射装置
粉末併給量：１．５ｋｇ／ｈｒ
実施例２
ＴｉＣの混合比率を８５重量部としたこと以外は実施例
１と同様にして基板表面にＴｉｃとＣｒ３Ｃ２とからな
る被膜を形成した。Blend amount TiC near 5 parts by weight Cr3C2: 25 parts by weight Particle size TiC powder; 10 to 44 μm Cr3C2 powder: 10 to 44 μm Thermal spraying conditions Thermal spraying equipment: Plasma spraying equipment Powder co-supply amount: 1.5 kg/hr Example 2 Mixing ratio of TiC A coating made of Tic and Cr3C2 was formed on the surface of the substrate in the same manner as in Example 1 except that the amount of the Cr3C2 was 85 parts by weight.
実施例３
ＴｉＣの混合比率を６０重量部、Ｃｒ３Ｃ２の比率を１
５瓜量部、ＭＯの混合比率を２５重量部とし、溶射被膜
形成後に更にレーザビームを照射したこと以外は実施例
２と同様の操作によって基板表面に被膜を形成した。Example 3 The mixing ratio of TiC was 60 parts by weight, and the ratio of Cr3C2 was 1
A coating was formed on the substrate surface in the same manner as in Example 2, except that the mixing ratio of MO was 25 parts by weight and that a laser beam was further irradiated after the thermal spray coating was formed.
なお、レーザ照射条件は次の通りである。Note that the laser irradiation conditions are as follows.
レーザ装置の機種： ＣＯ２レーザ
出 力 ：４ｋＷ
走査速度：０．４ｍ／ｓｅｃ
試験例１
実施例１〜３で得られた被膜を有する部材について、ピ
ニオンディスク型摩耗試験材を用いて、その摺動特性を
調べた。Model of laser device: CO2 laser output: 4 kW Scanning speed: 0.4 m/sec Test Example 1 The sliding behavior of the members having the coatings obtained in Examples 1 to 3 was measured using a pinion disc type wear test material. We investigated the characteristics.
テストピースはピン型試験片及びディスク型試験片に、
各々、実施例１〜３の方法により被膜を形成して作製し
た。各々の試験片を用いて、同一被膜同志を摺動させて
、その摩耗量を調べたところ、本発明に係る実施例１〜
３で形成された被膜は極めて耐摩耗性に優れていること
が判明した。The test piece is a pin type test piece and a disc type test piece.
Each was produced by forming a film by the method of Examples 1 to 3. Using each test piece, the same coatings were slid against each other and the amount of wear was investigated.
It was found that the coating formed in No. 3 had extremely excellent wear resistance.
なお、この試験結果の一例を第３図に示す。第３図は実
施例１の方法で形成したＴｉＣ−２５％Ｃｒ３Ｃ２溶射
材による被膜同志を用いて試験を行った場合の摩耗量と
荷重との関係を、片状黒鉛鋳鉄材同志を用いた場合の結
果とともに示すものである。この場合の試験温度は１８
０℃、摺動速度は１．８ｍ／ｓｅｃとし、潤滑剤はエン
ジン油（ＳＡＥ ＃２０）を用いた。An example of the test results is shown in FIG. 3. Figure 3 shows the relationship between the amount of wear and the load when a test was conducted using a TiC-25%Cr3C2 thermal sprayed coating formed by the method of Example 1, and when flaky graphite cast iron was used. This is shown together with the results. The test temperature in this case is 18
The temperature was 0° C., the sliding speed was 1.8 m/sec, and engine oil (SAE #20) was used as the lubricant.
第３図から、本発明方法に従って形成された被膜は、鋳
鉄に比べて一桁以上もその摩耗量が少ないことが明らか
である。It is clear from FIG. 3 that the coating formed according to the method of the present invention has an order of magnitude less wear than cast iron.
［効果コ
以上詳述した通り、本発明の耐摩耗性被膜は、良好な保
油性を有し、著しく耐摩耗性、耐スカツフ性に優れる。[Effects] As detailed above, the wear-resistant coating of the present invention has good oil retention and is extremely excellent in wear resistance and scuff resistance.
しかして、このような被膜は本発明の方法により、また
本発明の原料を用いることにより、極めて容易に形成さ
れる。Therefore, such a film can be formed extremely easily by the method of the present invention and by using the raw materials of the present invention.
本発明によれば、潤滑油を用いる摺動部材等の耐久性を
大幅に延長することが可能である。According to the present invention, it is possible to significantly extend the durability of sliding members and the like that use lubricating oil.
第１図及び第２図は本発明の方法によって形成された被
膜の構成を示す模式的な断面図である。
第３図は試験例１の摩耗試験の結果を示すグラフである
。
１・・・被膜、 ２・・・Ｃｒ３Ｏ２粒子、
３・・・ＴｉＣ母相、 ４・・・基板、５・・・凹部
。FIGS. 1 and 2 are schematic cross-sectional views showing the structure of a coating formed by the method of the present invention. FIG. 3 is a graph showing the results of the wear test of Test Example 1. 1... Coating film, 2... Cr3O2 particles,
3... TiC matrix, 4... Substrate, 5... Concave portion.
Claims (3)
６０重量部とから構成されることを特徴とする耐摩耗性
被膜。(1) 95 to 40 parts by weight of TiC and Cr_3C_25 to
60 parts by weight.
に溶射して、該部材表面に、ＴｉＣ９５〜４０重量部と
Ｃｒ＿３Ｃ＿２５〜６０重量部とから構成される被膜を
形成する工程を有することを特徴とする耐摩耗性被膜の
形成方法。(2) It is characterized by having a step of thermally spraying TiC and Cr_3C_2 as raw materials onto the surface of the member to form a coating composed of 95 to 40 parts by weight of TiC and 25 to 60 parts by weight of Cr_3C on the surface of the member. Method of forming a wear-resistant coating.
０重量部とを含むことを特徴とする耐摩耗性被膜形成用
の原料。(3) TiC95-40 parts by weight and Cr_3C_25-6
0 parts by weight of a raw material for forming a wear-resistant film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157112A JPS6314852A (en) | 1986-07-03 | 1986-07-03 | Wear resistant film, its formation and starting material therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157112A JPS6314852A (en) | 1986-07-03 | 1986-07-03 | Wear resistant film, its formation and starting material therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6314852A true JPS6314852A (en) | 1988-01-22 |
Family
ID=15642487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61157112A Pending JPS6314852A (en) | 1986-07-03 | 1986-07-03 | Wear resistant film, its formation and starting material therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0334243A (en) * | 1989-03-31 | 1991-02-14 | General Electric Co <Ge> | Titanium carbide film of bearing part |
| JPH10183378A (en) * | 1996-11-27 | 1998-07-14 | United Technol Corp <Utc> | Coating for brush seal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4941717A (en) * | 1972-08-25 | 1974-04-19 | ||
| JPS5113735A (en) * | 1974-06-17 | 1976-02-03 | Mallinckrodt Inc | Chikan 2 4 66 toryoodoisofutaruamidosan |
| JPS59193274A (en) * | 1983-04-18 | 1984-11-01 | Kubota Ltd | Heat resistant ceramics flame-spraying material |
-
1986
- 1986-07-03 JP JP61157112A patent/JPS6314852A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4941717A (en) * | 1972-08-25 | 1974-04-19 | ||
| JPS5113735A (en) * | 1974-06-17 | 1976-02-03 | Mallinckrodt Inc | Chikan 2 4 66 toryoodoisofutaruamidosan |
| JPS59193274A (en) * | 1983-04-18 | 1984-11-01 | Kubota Ltd | Heat resistant ceramics flame-spraying material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0334243A (en) * | 1989-03-31 | 1991-02-14 | General Electric Co <Ge> | Titanium carbide film of bearing part |
| JPH10183378A (en) * | 1996-11-27 | 1998-07-14 | United Technol Corp <Utc> | Coating for brush seal |
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