JPS58104172A - Surface treatment of sliding member - Google Patents
Surface treatment of sliding memberInfo
- Publication number
- JPS58104172A JPS58104172A JP56202516A JP20251681A JPS58104172A JP S58104172 A JPS58104172 A JP S58104172A JP 56202516 A JP56202516 A JP 56202516A JP 20251681 A JP20251681 A JP 20251681A JP S58104172 A JPS58104172 A JP S58104172A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- wear resistance
- sprayed layer
- layer
- spraying
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、表面における耐摩耗性や耐焼付性が優れた
摺動面を得るのに適した摺動用部材の表面処理方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface treatment method for a sliding member suitable for obtaining a sliding surface with excellent wear resistance and seizure resistance.
摺動用部材としては、その代表的なものとして、エンジ
ンのシリンダ（シリンダライチを使用することもある）
や軸受などｔ−あげることかで専る。Typical sliding members are engine cylinders (cylinder lychee is sometimes used)
It depends on whether the t- is raised, such as bearings or bearings.
そして、このような摺動用部材の摺動面における耐摩耗
性や耐焼付性を向上させるために、従来より種々の表面
処理方法が開発されてきている。この表面処理方法のう
ちの一つに線爆溶射法がある。In order to improve the wear resistance and seizure resistance of the sliding surfaces of such sliding members, various surface treatment methods have been developed. One of these surface treatment methods is a wire bomb spraying method.
この線爆溶射法は、表面処理しようとする例えばｔ＃Ｊ
形部材の中に細い導電性線材を配設し、この細い導電性
゛線材に対してエネルギの大きな電荷を与えることによ
って、上記線材を瞬間的に溶融爆発させて高温の溶融微
粒子を高速で周囲に飛散させ、筒形部材の内面に被覆層
を形成させる方法である。This wire bomb spraying method is suitable for surface treatment such as t#J
A thin conductive wire is placed inside the shaped member, and by applying a high-energy charge to the thin conductive wire, the wire is instantly melted and exploded, causing high-temperature molten particles to surround it at high speed. This is a method in which a coating layer is formed on the inner surface of a cylindrical member.
この線爆溶射法では、溶融微粒子の飛行速度が大きいた
めに密着力が高いこと、基材への熱影響が小さいこと、
均一な被覆層が得られること、自動化しやすく制御が容
易で生産性が高いこと、などの特徴を有しているが、他
方では、線爆溶射用材料として電気伝導性が曳好でかつ
直径の細い線材しか使用できないため、電気伝導性の低
い材料や加工性の悪い材料は適用できないという問題点
を有していた。したがって、酸化物２ｇ１化物、硫化物
、黒鉛等の耐摩耗性を向上させる物質を溶射用線材とす
る線爆溶射を行うことができなかった。This wire blast spraying method has the advantages of high adhesion due to the high flight speed of the molten particles, and a small thermal effect on the base material.
It has the characteristics of being able to obtain a uniform coating layer, being easy to automate, easy to control, and having high productivity.On the other hand, as a material for wire bomb spraying, it has good electrical conductivity and has a large diameter. Since only thin wires can be used, there is a problem that materials with low electrical conductivity or materials with poor workability cannot be applied. Therefore, it has not been possible to perform wire explosion thermal spraying using a material that improves wear resistance, such as oxide 2g1, sulfide, graphite, etc., as a thermal spraying wire.
そのほか、上記物質の粉末を導電性粉末と混合したサー
メット粉末を線材に焼結し、この線材を用いて線爆溶射
する方法もあるが、コスト高につくという問題点を有し
ていた。In addition, there is a method of sintering a cermet powder obtained by mixing the powder of the above-mentioned substance with a conductive powder into a wire rod, and performing wire blast spraying using this wire rod, but this method has the problem of high cost.
この発明は、上述した従来技術の問題点に着目してなさ
れたもので、電気伝導性が低くかつ耐摩耗性を向上させ
る物質を溶射層中に分散させることが可能であり、表面
における耐摩耗性や耐焼付性が優れた摺動用部材を得る
ことができる表面処理方法を提供することを目的として
いる。This invention was made by focusing on the problems of the prior art described above, and it is possible to disperse a substance that has low electrical conductivity and improves wear resistance in the sprayed layer, thereby improving the wear resistance on the surface. It is an object of the present invention to provide a surface treatment method that can obtain a sliding member with excellent properties and seizure resistance.
この発明による表面処理方法は、摺動用部材の基材表面
に、炭素鋼１合金鋼または銅合金（銅を含む）よりなる
線材を用いて１回以上線爆溶射することにより溶射層を
形成する工程と、硬質粉末や潤滑性粉末などの耐摩耗性
を向上さする物質を混合液状態等により前記溶射層表面
に付着する工程と、を必要なａｍ皮膜層厚さが得られる
まで１回以上施すことにより、基材・表面に耐摩耗性や
耐焼付性の優れ九複合溶射皮、−讐形成するようにした
ことｔ−特徴としている。The surface treatment method according to the present invention includes forming a sprayed layer on the surface of a base material of a sliding member by performing wire blast spraying one or more times using a wire made of carbon steel 1 alloy steel or copper alloy (including copper). step and the step of attaching a substance that improves wear resistance such as hard powder or lubricating powder to the surface of the thermal sprayed layer in a mixed liquid state, etc., one or more times until the required AM coating layer thickness is obtained. By applying this coating, a composite thermal sprayed coating with excellent abrasion resistance and seizure resistance is formed on the base material/surface.
また、この発明においては、摺動、用部材の基材がアル
ミニウムまたはアルミニウム合金である場合には、上記
溶射層の基材に対する密着性金高めるために、まず最初
に、Ｍｏ 、 Ｎｉ 、 Ｗ等の高比重高融点の金属か
らなる線材を用いて１回以上の線爆溶射を行うことによ
って下地溶射層を形成し、その後上記溶射層を形成する
工程と、との溶射層の表面に耐摩耗性を向上させる物質
を付着する工程と、を１回以上施して複合溶射層を形成
するようＫなすことも望ましく、特にエンジンのシリン
ダ（シリンダブロック一体型あるいはシリンダ内面チ）
ｔアルミニウム合金から製作して軽量化をはかった場合
に、シリンダ内面の耐摩耗性をかなり高めることができ
るようＫなる。In addition, in the present invention, when the base material of the sliding member is aluminum or aluminum alloy, Mo, Ni, W, etc. are first added to improve the adhesion of the thermal sprayed layer to the base material. forming a base thermal spray layer by performing wire blast spraying one or more times using a wire made of a metal with a high specific gravity and high melting point, and then forming the thermal spray layer; It is also desirable to form a composite sprayed layer by applying the step of attaching a substance that improves the properties of the material at least once, especially for engine cylinders (integrated cylinder block or cylinder inner surface).
If the cylinder is manufactured from aluminum alloy to reduce its weight, the wear resistance of the inner surface of the cylinder can be considerably improved.
次に、この発明の実施態様について説明する。Next, embodiments of this invention will be described.
第１図はこの発明を実施するのに使用する線爆溶射装置
の結線−であって、１は充電装置、２は抵抗、６は充電
用コンデンサ、４はスイッチ、５は円筒状の摺動、ｆｉ
’Ｍｌ）部材、６は摺動用部材５内に配設した溶射用線
材である。このような装置において、充電装置１によっ
てコンデンサ３に電荷を蓄えたのち、スイッチ４を入れ
ると、コンデンサ６の電荷が溶射用線材６に供給され、
この溶射用線材６は瞬間的に溶融爆発してこの溶融微粒
子が摺動用部材５の内面に付着することにより溶射皮膜
が形成される。通常の場合、１回の線爆溶射によって形
成される溶射皮膜の厚さは５〜ｌｏｐ＠ＦＫである。Figure 1 shows the wiring of the blast spraying device used to carry out this invention, where 1 is a charging device, 2 is a resistor, 6 is a charging capacitor, 4 is a switch, and 5 is a cylindrical sliding device. , fi
'Ml) member 6 is a wire rod for thermal spraying disposed within the sliding member 5. In such a device, when a switch 4 is turned on after a charge is stored in a capacitor 3 by a charging device 1, the charge in a capacitor 6 is supplied to a thermal spraying wire 6.
The thermal spray wire 6 melts and explodes instantaneously, and the molten fine particles adhere to the inner surface of the sliding member 5, thereby forming a thermal spray coating. In normal cases, the thickness of the sprayed coating formed by one blast spraying is 5 to lop@FK.
第２図は、この発明によって摺動用部材すなわち基材５
上に形成された複合溶射皮膜１０の断面模式図であり、
以下さらに説明する。FIG. 2 shows a sliding member, that is, a base material 5 according to the present invention.
It is a cross-sectional schematic diagram of a composite thermal spray coating 10 formed on the
This will be further explained below.
第２図においては、基材５がアルミニウム合金である場
合を示してお９、基材５の表面に下地溶射層１１管形成
している。この下地溶射層１１ｔ−形成するに際しては
、先ず、基材５の表面會適当な粗さに仕上げて脱脂した
後、Ｍｏ 、 Ｎｉ 、 Ｗ等の高比重高融点の金属か
らなる線材６を用いて例えば１〜５回の線爆溶射を行う
。この下地溶射層１１の厚さは例えば１６〜２０ｐ程度
とするのが良いが、適宜変更することも可能であり、下
地溶射層１１としての効果が得られる厚さ以上とするが
、過大な厚さはかえって好ましくない。In FIG. 2, a case is shown in which the base material 5 is an aluminum alloy, and a base thermal spray layer 11 is formed on the surface of the base material 5. When forming this base thermal sprayed layer 11t, first, the surface of the base material 5 is finished to an appropriate roughness and degreased, and then a wire rod 6 made of a metal with high specific gravity and high melting point such as Mo, Ni, and W is used. For example, one to five beam blast sprays are performed. The thickness of this base sprayed layer 11 is preferably about 16 to 20p, but it can be changed as appropriate, and the thickness should be at least as thick as possible to obtain the effect as the base sprayed layer 11. On the contrary, I don't like it.
下地溶射層１１ｔ−形成した後、炭素鋼９合金鋼または
鋼合金よりなる線材６を用いて１回以上の線爆溶射を行
うことＫより溶射層１２ｔ−形成する。After forming the base thermal sprayed layer 11t, a thermal sprayed layer 12t is formed by performing wire blast spraying one or more times using a wire rod 6 made of carbon steel 9 alloy steel or steel alloy.
この場合の溶射層１２の厚さは、必要な耐摩耗性や耐焼
付性の程度に応じて定めるのがよく、例えば１〜３回連
続して線爆溶射を行い、５〜２５μ程度の厚さとする。In this case, the thickness of the sprayed layer 12 is preferably determined according to the required degree of wear resistance and seizure resistance. Satoru.
また、溶射用線材６として炭素鋼を使用する場合には、
必要とする耐摩耗性の程度に応じて七のＣ含有量や硬さ
の適当な線材上使用すれば良い。この場合、Ｃ含有量が
例えば０．１重量−未満であるような低すぎるときには
耐摩耗性が不足することがあり、例えば１．０重量−を
超えるような高すぎるときには残留オーステナイトが生
じて同様に耐摩耗性が低下することがある。In addition, when carbon steel is used as the wire rod 6 for thermal spraying,
It may be used on a wire rod having an appropriate C content and hardness depending on the degree of wear resistance required. In this case, if the C content is too low, e.g. less than 0.1% by weight, the wear resistance may be insufficient, and if it is too high, e.g. more than 1.0% by weight, retained austenite is generated and the same occurs. wear resistance may decrease.
次に、上記溶射層１２管形成した後、との溶射層１２０
表面に、耐摩耗性を向上させる物質の粉末の層Ｉｓ？付
着させる。耐摩耗性を向上さぜる物質としては、潤滑性
の点から耐摩耗性管向上させるものと、硬度の点から耐
摩耗性を向上させるものとがあや、前者のものには黒鉛
、活性炭、フッ化黒鉛（ＣＦ）、鉛、鋳鉄、゛二硫化モ
リブデン。Next, after forming the above thermal sprayed layer 12, the thermal sprayed layer 120 is
On the surface is a layer of powder of a substance that improves wear resistance. Make it adhere. Substances that improve wear resistance include those that improve wear resistance from the viewpoint of lubricity, and those that improve wear resistance from the viewpoint of hardness.The former include graphite, activated carbon, Graphite fluoride (CF), lead, cast iron, molybdenum disulfide.
二硫化タングステン、窒化ホウ素などがあり、後者のも
のにはＡｊ、Ｏｓｅ ＳｉＯｔ ＺｒＯ，＊ ＭｇＯｅ
８１ｃｅＴｉｃ 、ＷＣｔ ＴＩＮ 、 ＡＡＮ 、
ＢＮ ｔ Ｓｔ、Ｎ、等Ａの各種酸化物、炭化物、ｆｆ
ｌ化物などがある。このような物質會溶射層１２の表面
に付着させるに際しては、これらの粉末をアルコール等
の液体中に、必要に応じて若干の粘結剤と共に分散させ
た混合液を作成し、この混合液を溶射層１２の表面に塗
布あるいは噴霧等の手段によって付着させる。次いで、
自然乾燥または若干の加熱乾燥によって液体分を蒸発さ
せて耐摩耗性を向上させる物質の粉末の層１６を付着さ
せる。このようにすると、混合液中の粉末の一部が溶射
層１２の微孔内に含浸されると同時に、溶射層１２の表
面に残った粉末は次に行われる線爆溶射時に飛散してく
る濤融微粒子に／・′：１
とらえられてそのｉｔ溶射層上に付着するため、耐摩耗
性を向上させる物質が良好にかつ均一に分散した複合溶
射皮膜を得ることができる。There are tungsten disulfide, boron nitride, etc., and the latter includes Aj, Ose SiOt ZrO, *MgOe
81ceTic, WCt TIN, AAN,
BN t St, N, etc. A various oxides, carbides, ff
There are chlorides, etc. When attaching such substances to the surface of the sprayed layer 12, a mixture is prepared by dispersing these powders in a liquid such as alcohol, along with some binder if necessary, and this mixture is It is attached to the surface of the thermal spray layer 12 by means such as coating or spraying. Then,
The liquid content is evaporated by air drying or slight heat drying to deposit a powder layer 16 of a substance that improves wear resistance. In this way, a part of the powder in the mixed liquid is impregnated into the fine pores of the thermal spray layer 12, and at the same time, the powder remaining on the surface of the thermal spray layer 12 is scattered during the next wire blast spraying. Since it is captured by the melted fine particles and attached to the IT sprayed layer, it is possible to obtain a composite sprayed coating in which the substance that improves wear resistance is well and uniformly dispersed.
上記した耐摩耗性を向上させる物質を液体中に混合させ
るに際しては、必要に応じて若干の粘結剤と共に液体中
に最大５０重量％程度まで分散させるのがよく、この混
合液を溶射層表面に１００Ｐ以下、より望ましくは５０
μ以下の厚さになるように塗布または噴霧等により付着
させるのが過当である。また、上記物質の粒径が大きす
ぎる場合には、塗布または噴霧が均一になり販く、次に
行われる線爆溶射工程でもｆＩ面が粗くなり、密着度が
低下したり剥離を生じたりするので、その粒径は５０μ
以下の程度とするのが望ましい。一方、粒径が小さすぎ
ると歩留りが低下するので、０．５μ以上とするのが１
Ｍ画である。さらに、液体中に分散させる量が多すぎる
と薄くかつ均一に付着させることができなくなるので、
最大５０重重量板下とするのが良い。また、溶射層１２
の表面に厚１
く付着すると、次に行われる線爆溶射において溶融微粒
子が飛散してきたときに、当該微粒子が耐摩耗性を向上
させる物質の粉末の層１６ｔ−突き抜けて下層の溶射層
１２まで届かなくなる几め、良好な密着力を得ることが
できなくなる。したがって、粉末の層１６の付着厚は１
００μ以下、より望ましくＦｉ５０μ以下とするのが適
当である。しかし、あまりに薄いと耐摩耗性や耐焼付性
向上の効果を得ることができなくなるので、適切な厚さ
以上とする。When mixing the above-mentioned substance that improves wear resistance into a liquid, it is best to disperse it into the liquid to a maximum of about 50% by weight along with some binder if necessary. 100P or less, more preferably 50P or less
It is appropriate to apply it by coating or spraying so that the thickness is less than μ. In addition, if the particle size of the above substance is too large, the coating or spraying becomes uniform, and the fI surface becomes rough even in the next beam blasting process, which reduces adhesion or causes peeling. Therefore, the particle size is 50μ
It is desirable that the level is as follows. On the other hand, if the particle size is too small, the yield will decrease, so it is recommended to set the particle size to 0.5μ or more.
It is an M picture. Furthermore, if too much is dispersed in the liquid, it will not be possible to deposit it thinly and uniformly.
It is best to use a maximum of 50 weight plates. In addition, the sprayed layer 12
When the molten particles adhere to the surface of the layer 16 thick, when the molten particles are scattered during the next wire blast spraying, the particles penetrate through the layer 16t of the powder of the substance that improves wear resistance and reach the thermal spray layer 12 below. If it becomes difficult to reach, it becomes impossible to obtain good adhesion. Therefore, the deposited thickness of the powder layer 16 is 1
It is appropriate that Fi is 00μ or less, more preferably Fi50μ or less. However, if it is too thin, it will not be possible to obtain the effect of improving wear resistance and seizure resistance, so the thickness should be at least an appropriate thickness.
次に、必要に応じて、第２図に示すように、上記粉末の
層１６上に、前記と同様に炭素鋼９合金鋼または銅合金
よりなる線材６ｔ−用いて１回以上の線爆溶射全行うこ
とにより第二の溶射層１２を形成し、さらにその上に、
耐摩耗性を向上させる物質の粉末の第二の１１１３を付
着させることによって、基材５の摺動面に複合溶射皮膜
１０ｔ−形成する。そして、図示例のものに必らず、必
要に応じてさらに溶射層１２の形成と、耐摩耗性を向上
させる物質の粉末の層１６の付着とを交互に繰返えして
所定厚さの複合溶射皮膜１０ｔ−得る。なお溶射層１２
は実際には波形をなして形成されるため、線爆溶射終了
後に所定の厚さになるように表面の仕上げ加工を行うと
、表面には炭素鋼１合金鋼または銅合金と、耐摩耗性を
向上させる物質とが混合した複合組織が現われるので、
耐摩耗性および耐焼付性に優れた摺動面を得ることがで
きる。Next, if necessary, as shown in FIG. 2, wire blast spraying is applied one or more times on the powder layer 16 using a wire rod 6t made of carbon steel 9 alloy steel or copper alloy in the same manner as described above. A second sprayed layer 12 is formed by performing all the steps, and further, on top of that,
A composite sprayed coating 10t is formed on the sliding surface of the base material 5 by depositing a second powder 1113 of a substance that improves wear resistance. Then, the formation of the thermal spray layer 12 and the deposition of the layer 16 of powder of a substance that improves wear resistance are alternately repeated as necessary, not necessarily in the illustrated example, to obtain a predetermined thickness. Obtain 10 tons of composite sprayed coating. Note that the sprayed layer 12
is actually formed in a wave shape, so if the surface is finished to a specified thickness after wire blast spraying, the surface will be coated with carbon steel 1 alloy steel or copper alloy and wear-resistant. A composite structure appears that is a mixture of substances that improve
A sliding surface with excellent wear resistance and seizure resistance can be obtained.
実施例 １
基材５として、５Ｘ５Ｘ１０ｗのＡＣ４Ｂ−Ｔ６処理材
（ＪＩＳ Ｈ５２０２’）を使用し、線爆溶射面は５×
５鴫の面として表面仕上げを行い、アセトンを用いて脱
脂した。使用した線爆溶射装置の充電容量は１００μＦ
で、基材と溶射線材との距離ｔ ４５ ｗｒとして大気
中で線爆溶射した。Example 1 A 5x5x10w AC4B-T6 treated material (JIS H5202') was used as the base material 5, and the wire blast spraying surface was 5x5x10w.
The surface was finished as a 5-sided surface and degreased using acetone. The charging capacity of the wire bomb spraying device used was 100 μF.
Then, wire blast spraying was carried out in the atmosphere with a distance t 45 wr between the base material and the thermal spray wire.
また、溶射線材には、直径１．６５ｍ５長さ１７０箇の
Ｍｏ ＠を用いて、放電電圧１７ ＫＶとして３層連続
して線爆溶射して下地溶射層１１を形成した。In addition, the base thermal sprayed layer 11 was formed by continuous wire bombardment spraying of three layers of Mo@ with a diameter of 1.65 m and a length of 170 at a discharge voltage of 17 KV as the thermal sprayed wire.
次く、溶射線材として、直径１．８ｓｍ、長さ１７０■
のピアノ線を用いて、放電電圧１６．５ Ｋｖで２回連
続して線爆溶射して溶射層１２を形成し友。次いで、溶
射層１２の表面に、有機粘結剤を４重量％含むアルコー
ル溶液中に３５０メツシュ未満の微細な黒鉛ｔ−１２，
５重量、チ分散させた混合液を刷毛によって塗布し、そ
のまま約１５秒間放置して蒸発乾燥させた。その後、ピ
アノ線を用いた線爆溶射２回と、黒鉛分散液の塗布およ
び乾燥を繰返して複合溶射皮膜１０？形成した。仁の複
合溶射皮膜１０の断面を顕微鏡により調べたところ、第
３図の写真に示す結果が得られた。第３図に示すように
、アルミニウム合金よりなる基材５の表面にＭｏ下地溶
射層１１および複合溶射皮膜１０が形成されており、複
合溶射皮膜１０はピアノ線を用いた線爆溶射層の中に黒
鉛が良好に分散していることが認められた。Next, as a thermal spray wire, the diameter was 1.8 s and the length was 170 cm.
The sprayed layer 12 was formed by wire blast spraying twice in succession at a discharge voltage of 16.5 Kv using piano wire. Next, on the surface of the thermal spray layer 12, fine graphite T-12 of less than 350 meshes was added in an alcohol solution containing 4% by weight of an organic binder.
5 weight of the dispersed mixture was applied with a brush and left to stand for about 15 seconds to evaporate and dry. After that, wire blast spraying using piano wire twice and application and drying of graphite dispersion were repeated to form a composite thermal spray coating 10? Formed. When the cross section of the composite thermally sprayed coating 10 was examined using a microscope, the results shown in the photograph in FIG. 3 were obtained. As shown in FIG. 3, a Mo base thermal sprayed layer 11 and a composite thermal sprayed coating 10 are formed on the surface of a base material 5 made of an aluminum alloy, and the composite thermal sprayed coating 10 is formed in a wire blast sprayed layer using piano wire. It was observed that graphite was well dispersed.
実施例 ２
ここでは、実施例１の黒鉛の代わりに窒化ホウ素（ＢＮ
） ？用い、他の条件は同じとした。その結果、第３
図に示したとほぼ同様に、ピアノ線を用いた線爆溶射層
の中に窒化ホウ素が良好に分散していることが確認され
た。Example 2 Here, boron nitride (BN
)? The other conditions were the same. As a result, the third
Almost as shown in the figure, it was confirmed that boron nitride was well dispersed in the wire blast sprayed layer using piano wire.
１１゜ 試験例 ・。11° Test example ・.
上記実施例１．２において表面処理したものをそれぞれ
供試材ム１，２とし、比較のために、ピアノ線だけを連
続して線爆溶射したものを供試材ム３．普通鋳鉄（Ｆ’
Ｃ２５）ｔ−供試林産４として摩耗試験を行った。Sample materials M1 and 2 are those that were surface-treated in Example 1.2, and for comparison, test materials M3 and 3 are those that were subjected to continuous wire blast spraying with only piano wire. Ordinary cast iron (F'
C25) A wear test was conducted as t-test forest product 4.
ここで使用した摩耗試験機は、第４図に示すように、回
転軸１５に固定した供試材ホルダ１６に、同心円上に四
個の供試材１７ｔ−取付け、供試材１７の反対側から、
球面座１８を介して油圧罠より荷重を受けるディスクホ
ルダ１９に固定し友ディスク形の相手材２０を押し付け
る構造をなすものであり、ディスクホルダ１９の給油孔
１９ｍから潤滑油を供給しうるようになっている。また
、摩耗試験条件を第１表に示す。As shown in FIG. 4, the abrasion tester used here has four test materials 17t mounted concentrically on a test material holder 16 fixed to a rotating shaft 15, on the opposite side of the test material 17. from,
It has a structure in which it is fixed to a disc holder 19 that receives a load from a hydraulic trap via a spherical seat 18 and presses against a companion disc-shaped mating member 20, so that lubricating oil can be supplied from the oil supply hole 19m of the disc holder 19. It has become. Further, the wear test conditions are shown in Table 1.
また、摩耗試験の結果を第５図に示す。第５図から明ら
かなように、この発明による供試材ＡＩ。Moreover, the results of the wear test are shown in FIG. As is clear from FIG. 5, the sample material AI according to the present invention.
蔦２の摩耗量は、耐摩耗性を向上させる物質を含まない
供試材ム３に比べてかなり少なく、耐摩耗性が向上して
いることが明らかであり、供試材ム４の鋳鉄並みであっ
て、特にエンジンのシリンダの如く軽量化の要錆が著し
い用途に適しているといえる。The wear amount of Tsuta 2 is considerably smaller than that of sample material M3, which does not contain any substance that improves wear resistance, and it is clear that the wear resistance is improved, and it is comparable to test material M4 of cast iron. Therefore, it can be said that it is particularly suitable for applications such as engine cylinders, which require weight reduction and are subject to significant rust.
また、同じ摩耗試験機を使用し、接触面圧管次第に増加
させる焼付試験を行ったところ、供試材Ａ１，２は供試
材Ａ３に比べてかなり優れた結果を示し、供試材Ｊｔ６
４の鋳鉄並みの耐焼付性を得ることができた。In addition, when we conducted a seizure test using the same wear tester and gradually increasing the contact surface pressure on the tube, sample materials A1 and 2 showed considerably superior results compared to sample material A3, and sample material Jt6
It was possible to obtain seizure resistance comparable to No. 4 cast iron.
なお、上記各実施例においては摺動用部材の基材がアル
ミニウム合金（ＡＣ４Ｂ）を用いた場合を示しているが
、その他のアルミニウム合金および雪の他の構造用とし
て使用され金金属に適用した場合にも耐摩耗性および耐
焼付性の良好な複合溶射皮膜を形成することができた。In each of the above examples, the base material of the sliding member is an aluminum alloy (AC4B), but other aluminum alloys and other structures such as snow and gold metals may be used. It was also possible to form a composite thermal sprayed coating with good wear resistance and seizure resistance.
以上説明してきたように、この発明によれば、摺動用部
材の基材表面に、炭素鋼１合金鋼または銅合金よりなる
線材を用いて線爆溶射することにより溶射層を形成する
工程と、耐摩耗性を向上させる物質の粉末ｔＳ記溶射層
表面に付着する工程と、を必要な厚さが得られるまで繰
返し施すことによって複合溶射皮膜を形成するようにし
たから、通常の線爆溶射では得難いような、電気伝導度
が小さくかつ耐摩耗性を向上させる物質を含む複合組織
を有する溶射皮膜を得ることができ、耐摩耗性および耐
焼付性の優れた摺動面ｔ４．つ摺動用部材を得ることが
可能であるという非常に優れた効果を有する。As explained above, according to the present invention, a step of forming a sprayed layer on the surface of a base material of a sliding member by wire blast spraying using a wire made of carbon steel 1 alloy steel or copper alloy; The composite thermal spray coating is formed by repeating the step of adhering a powder of a substance that improves wear resistance to the surface of the thermal spray layer until the required thickness is obtained, making it easier to use than ordinary wire blast spraying. It is possible to obtain a thermal spray coating having a complex structure containing a substance that has low electrical conductivity and improves wear resistance, which is difficult to obtain, and provides a sliding surface t4 with excellent wear resistance and seizure resistance. This has a very excellent effect in that it is possible to obtain a sliding member.
第１図はこの発明を実施するのに使用される線爆溶射装
置の一例を示す結線図、第２図はこの発明によシ形成さ
れ九複合溶射皮膜の断面模式図、第３図はこの発明の実
施例１において得られた複合溶射皮膜の顕微鏡写真（２
００倍）、第４図は摩耗試験機の断面説明図、第５図は
摩耗試験結果を示すグラフである。
５・・・摺動用部材（基材）、１１・・・下地溶射層、
１２・・・溶射層、１６・・・耐摩耗性を向上させる物
質の粉末の層。
特許出願人 日産自動車株式会社
代理人弁理士 小 塩 豊第２図
゛第５図
七ｒ入’１ｌｕ−月【（′／博リトノFig. 1 is a wiring diagram showing an example of a radiation bomb spraying apparatus used to carry out the present invention, Fig. 2 is a schematic cross-sectional view of a nine-composite thermal spray coating formed according to the present invention, and Fig. Micrograph (2) of the composite thermal sprayed coating obtained in Example 1 of the invention
00 times), FIG. 4 is a cross-sectional explanatory diagram of the abrasion tester, and FIG. 5 is a graph showing the abrasion test results. 5... Sliding member (base material), 11... Base sprayed layer,
12... Thermal spray layer, 16... A layer of powder of a substance that improves wear resistance. Patent applicant: Nissan Motor Co., Ltd. Patent attorney Yutaka Oshio
Claims (1)
鋼合金よりなる線材を用いて線爆溶射することにより溶
射層を形成する工程と、耐摩耗性を向上させる物質の粉
末を前記溶射層表面に付着する工程と、を１回以上施す
ことにより複合溶射皮＃を形成することを特徴とする摺
動用部材の表面処理方法。(1) A process of forming a sprayed layer on the surface of the base material of the sliding member by wire blast spraying using a wire made of carbon steel 2 alloy steel or steel alloy, and applying powder of a substance that improves wear resistance. A method for surface treatment of a sliding member, characterized in that a composite thermal sprayed skin # is formed by performing the step of adhering to the surface of the thermal sprayed layer one or more times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56202516A JPS58104172A (en) | 1981-12-17 | 1981-12-17 | Surface treatment of sliding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56202516A JPS58104172A (en) | 1981-12-17 | 1981-12-17 | Surface treatment of sliding member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58104172A true JPS58104172A (en) | 1983-06-21 |
Family
ID=16458779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56202516A Pending JPS58104172A (en) | 1981-12-17 | 1981-12-17 | Surface treatment of sliding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58104172A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62112768A (en) * | 1985-11-11 | 1987-05-23 | Babcock Hitachi Kk | Corrosion resistant treated metallic material |
| JP2014181347A (en) * | 2013-03-18 | 2014-09-29 | Tocalo Co Ltd | Mold for forming molten glass gob and method producing the same |
| JP2016050673A (en) * | 2014-08-28 | 2016-04-11 | 現代自動車株式会社Ｈｙｕｎｄａｉｍｏｔｏｒ Ｃｏｍｐａｎｙ | Shift fork having improved abrasion resistance and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939534A (en) * | 1972-08-22 | 1974-04-13 | ||
| JPS51141737A (en) * | 1975-05-31 | 1976-12-06 | Kawasaki Heavy Ind Ltd | Wireeexplosion metal spraying method |
| JPS5438585A (en) * | 1977-08-31 | 1979-03-23 | Matsushita Electric Ind Co Ltd | Connecting |
-
1981
- 1981-12-17 JP JP56202516A patent/JPS58104172A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939534A (en) * | 1972-08-22 | 1974-04-13 | ||
| JPS51141737A (en) * | 1975-05-31 | 1976-12-06 | Kawasaki Heavy Ind Ltd | Wireeexplosion metal spraying method |
| JPS5438585A (en) * | 1977-08-31 | 1979-03-23 | Matsushita Electric Ind Co Ltd | Connecting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62112768A (en) * | 1985-11-11 | 1987-05-23 | Babcock Hitachi Kk | Corrosion resistant treated metallic material |
| JPH0535215B2 (en) * | 1985-11-11 | 1993-05-26 | Babcock Hitachi Kk | |
| JP2014181347A (en) * | 2013-03-18 | 2014-09-29 | Tocalo Co Ltd | Mold for forming molten glass gob and method producing the same |
| JP2016050673A (en) * | 2014-08-28 | 2016-04-11 | 現代自動車株式会社Ｈｙｕｎｄａｉｍｏｔｏｒ Ｃｏｍｐａｎｙ | Shift fork having improved abrasion resistance and manufacturing method thereof |
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