JPS5931864A - Heat treatment for forming lubricating film - Google Patents
Heat treatment for forming lubricating filmInfo
- Publication number
- JPS5931864A JPS5931864A JP13927982A JP13927982A JPS5931864A JP S5931864 A JPS5931864 A JP S5931864A JP 13927982 A JP13927982 A JP 13927982A JP 13927982 A JP13927982 A JP 13927982A JP S5931864 A JPS5931864 A JP S5931864A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- parts
- heat treatment
- lubricant
- lubricating film
- 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
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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Description
【発明の詳細な説明】 皮膜形成熱処理方法ｒｔｃ関１′る。[Detailed description of the invention] Film forming heat treatment method RTC 1'.
炭素と共に窒素を鋼の表面ＩｆＣｆｊｌ人させる、いわ
ゆる浸炭浸窒処理が各種部品の表面硬化に利用されてい
るが、耐摩耗性，特に耐焼付摩耗性を、より向上させる
目的で、前記浸炭浸窒処理した部品表面に、さらに二硫
化モリブデン（ＭｏＳ，１等のＩＩＶ４滑皮膜を形成す
る処理が行われる。しかして、前記潤滑皮膜を、より強
固に形成するには、部品表面（いわゆる下地）を皮膜処
理に有利な状態にしておく必要があり、通常、ゾ１ノト
プラスト、化成処理等の前処理が行わＪする。The so-called carbonitriding process, in which nitrogen is added to the surface of steel along with carbon, is used to harden the surface of various parts. A treatment to form an IIV4 lubricant film of molybdenum disulfide (MoS, 1, etc.) is further performed on the treated part surface.However, in order to form the lubricant film more firmly, the part surface (so-called base) is It is necessary to maintain conditions favorable for film treatment, and pretreatments such as sol-notoplast and chemical conversion treatments are usually performed.
すなわち、前ｍｌ目的に合致した部品を得るにし」、、
浸炭浸窒一焼入一下地処理一皮膜処理一焼もどしの各処
理工程を経る必要があり、必然的に製造コストの上昇は
免ｈ，得ないものであった。In other words, to obtain parts that meet the previous ML purpose.''
It is necessary to go through the following treatment steps: carburizing/nitriding, quenching, base treatment, coating treatment, and tempering, which inevitably increases manufacturing costs.
本発明は、上記従来技術の問題点に鑑み、潤滑皮膜性能
を従来のものと同等以上に確保しつつ、より割安に潤滑
皮膜を形成し得る熱処理方法を提供することを目的とす
る。SUMMARY OF THE INVENTION In view of the problems of the prior art described above, it is an object of the present invention to provide a heat treatment method that can form a lubricant film at a lower cost while ensuring lubricant film performance equal to or better than that of the conventional method.
このために、窒素過剰雰囲気で浸炭浸窒処理後、直接焼
入して得た部品表面に潤滑剤を伺着せしめ、しかる後に
前記部品を低温焼もどしするという熱処理方法を通じて
、皮膜処理の前工程としての下地処理を不要なら【２め
た潤滑皮膜形成工程を確立した。For this purpose, a lubricant is deposited on the surface of the parts obtained by direct quenching after carbonitriding in a nitrogen-rich atmosphere, and then the parts are tempered at a low temperature. If additional surface treatment is not required, we have established a second lubricating film formation process.
以ト，本発明の実施例を添付図面にもとづいて説明する
。Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.
第１図Ｖ１本発明にＩが゛へる潤滑皮膜形成熱処理方法
のうｔ）のｔシ炭浸窒処理条１′１゛を示す相関図であ
／、。同図中、紺軸１．−１、ガス零囲勺の炭素ボデン
シ濃・ル、横刺目′１４同様のｑｊ７ ：Ｊ、；、ボテ
ンシャル４表わし−１、各処理部ＩＪ゛（に応じたガス
雰囲気の調整範囲がそ）しぞノ）示−ｐｈる。−Ｉ、／
ｉ−ゎＬｌ、不法においては、処理部１９００℃の、Ｉ
ｉ４合ｔ、ｔ、ｅ：＋中Ａ Ｂ−Ｃ線より右・下方領
域、処理温度８５０℃の場合Ｖ」、へ′−Ｂ’−Ｃ’線
よりも右・Ｆ方領域、処理温度８００Ｕの場Ａ Ｆ、’
Ｆ、 Ａ” ｎ’仙ｃ〃線よりも右・下方領域になる
ように、ぞｉｌぞれカス雰囲気が調整される。FIG. 1 V1 is a correlation diagram showing carbonitriding treatment strips 1'1' of t) of the heat treatment method for forming a lubricating film according to the present invention. In the figure, dark blue axis 1. -1, Carbon density concentration of gas zero surround, qj7 similar to horizontal stitch '14: J, ;, Votential 4 representation -1, Each processing section IJ' (adjustment range of gas atmosphere according to it) zono) show-ph show. -I, /
i-ゎLl, illegally, the processing part is 1900℃, I
i4 go t, t, e: + middle A area to the right/below the B-C line, processing temperature 850°C V'', area to the right/F from the '-B'-C' line, processing temperature 800U The field A F,'
The dust atmosphere is adjusted so that the area is to the right and below the lines F and A''.
このことに：Ｊ、、 （、ｉＥ来の標準的な処理イミイ
′１、ずなゎｔ）、０−Ｂ−Ｃ糾（９００℃）、０’−
Ｂ’−Ｃ′＃ｉ！（８５１Ｊ℃）、０“−Ｂ“−Ｃ”線
（８００℃）に沿ッテ雰囲気訓整さｉっていたものに比
し、相対的に幸素ポテンシャル過大雰囲気とな−）てお
り、が＼る雰囲気で浸炭浸窒処理した部品を、引続き焼
入処理すると、１１１ｆ記部品σノ表面近傍（表面〜約
３０ ｔｈ深さ）に過飽和窒素により空孔が生じ、多孔
質層が形成Ａノする。In this case: J,, (, standard processing since iE'1, Zunawat), 0-B-C (900℃), 0'-
B'-C'#i! (851J°C), compared to the atmosphere that was trained along the 0"-B"-C" line (800°C), the atmosphere is relatively over-saturated with nutrient potential. When a part that has been carburized and nitrided in an atmosphere of No.
このような表面多孔質層を有する部品に、次に、熱硬化
型乾性の二硫化モリブデン（ＭｏＳ、）潤滑剤を、スプ
レー、浸漬、塗布等の手段でイ」着させ、しかる後に、
浸炭浸窒処理部品に通常行わノ上る焼もどし処理を施す
。この焼もどし処理ｉ、ｉ １５０〜２００℃の低温処
理であり、とｉｌ挾より、前記ＭｏＳ、潤滑剤が硬化す
ることとなる。しかして、前記のごとく表面多孔質が形
成された部品表面にあっては、潤滑剤が付着し易い状態
となっており、かつ一部は多孔質層内に浸入するものと
なり、仁のため強固々潤滑皮膜が形成されることとなる
。Next, a thermosetting dry molybdenum disulfide (MoS) lubricant is applied to the component having such a surface porous layer by spraying, dipping, coating, etc., and then,
A tempering treatment that is normally performed on carburized and nitrided parts is performed. This tempering treatment is a low-temperature treatment at 150 to 200°C, and the MoS and lubricant are hardened due to the tempering treatment. However, on the surface of parts with surface porosity as described above, the lubricant tends to adhere, and some of the lubricant penetrates into the porous layer, making it strong. A lubricating film will be formed.
第２図は上記潤滑皮膜形成の熱処理サイクルを一括して
示す熱処理曲線である。すなわち、窒素過剰雰囲気
Ｉ、焼入処理 ： 急冷
：ｕ＃１ｆｆｉ＃ＨｌｌｌＺ
工程を標準と檀るものであゆ、ｌまたがって、従来、皮
膜処理前に行わｉｌていた一ト地処理が省略され、その
分割安な処理工程が実現される。FIG. 2 is a heat treatment curve that collectively shows the heat treatment cycle for forming the lubricating film. That is, the nitrogen-excess atmosphere I, quenching treatment: quenching: u#1ffi#HllllZ process is called the standard, and the one step treatment that was conventionally performed before the film treatment is omitted. The processing process is realized at a low cost.
第３図Ｖ」、不法の処理１［程により得た試験片ににつ
き、焼付摩耗試験を行った結果を示す特性図で、従来の
処理工程により？！、＋ ｆｒ、ものの結果と対比して
示しである。同図において、Ｓは不法により？［すたも
ので、炭素ボデンシャル０８％、窒素ボデンシャル０８
％のガス雰囲気で、８５０℃×５時間の浸炭浸窒処理後
、焼入−ＭＯ８２皮膜処理−１８０℃×５０分焼もと（
７の各処理を行ってイＩ子、“また、Ａ、Ｂ、ｃｉ、Ｊ
：従来条件で浸炭浸窒処理後、ト地処理として、八は脱
脂、Ｂｔ；Ｉショットブラット、Ｃは化成処理を施した
もの’４’、’ ｓ ｆｉｉ’ｊ Ｍｌ−：皮膜処理お
よび焼もどし処理して得たものである１寸だ、試験方法
は第４図１１ｒ： ｙＨ： ′−Ｊように、円板状の試
験片１庖・回転軸２にＪＩＶ （＝Ｉけ、これを回転速
度Ｒ，４ｎ分７２回転（７２ｒｐ＋ｎ ）で回転させ、
その外周Ｆｈｔ Ｋ高硬度ブ１１ツク３を荷重２８０に
りで押１．付０、斤擦係数が０１匠オるまでの寿命（回
転数）を測定した。Figure 3 is a characteristic diagram showing the results of a seizure wear test on a test piece obtained through illegal treatment 1. ! , + fr, is shown in contrast to the results for those. In the same figure, is S illegally? [Items include carbon bodential 08%, nitrogen bodential 08%]
After carbonitriding treatment at 850°C for 5 hours in a gas atmosphere of
After performing each process in step 7, ``Also, A, B, ci, J''
: After carbo-nitriding treatment under conventional conditions, 8 is degreased, Bt: I shot brat, C is chemical conversion treatment '4', 's fii'j Ml-: Film treatment and tempering The test method is as shown in Figure 4, 11r: yH: '-J. Rotate at speed R, 72 rotations for 4n (72rp+n),
Push the outer periphery Fht K high hardness block 11 with a load 280 1. The lifespan (rotation speed) until the friction coefficient reached 0 and the friction coefficient reached 01 was measured.
第６図より、不法により得たもの（Ｓｉ ＆Ｊ：、脱脂
若しくはショツトブラストの前処理を行ったもの（５）
、（Ｂ）に比し、耐焼付摩耗性ケｊ太１に向」二すると
共に、化成処理を施したもの（０）に比り、ても、そｇ
と同等以上の耐焼付摩耗性を有することが確認さノ１だ
。From Figure 6, illegally obtained items (Si & J: pre-treated with degreasing or shot blasting (5)
, compared to (B), the seizing and wear resistance was improved to 1.
It has been confirmed that it has seizure resistance equal to or higher than that of
以上、詳細に説明したように、不発１ν］にか＼る潤滑
皮膜形成熱処理方法は、窒素過剰雰囲気で浸炭浸窒処理
（７て部品表面近傍に多孔質層を形成し、後の皮膜処理
に有利な一ト地を提供するようにしたもので、不法によ
り、従来必要とされた皮膜処理前の下地処理が不要とな
り、孝の分割安な処理工程が実現される。また不法によ
用に耐えられＺ、ものであることが確認さ）また。As explained above in detail, the heat treatment method for forming a lubricating film according to 1v] is a carbonitriding process (7) in which a porous layer is formed near the surface of the part in a nitrogen-excess atmosphere, and a porous layer is formed near the part surface for subsequent film treatment. It is designed to provide an advantageous one-piece surface, and the conventionally required base treatment before film treatment is no longer necessary, making it possible to realize a cheaper treatment process. It has been confirmed that Z is durable (also confirmed).
第１図ｔｊ本発明にか＼る潤滑皮膜形成熱処理方法にお
Ｖ）る浸炭浸窒処理条件を示す相関図、？（”、 ？（
９）１本法の熱処理シイクルを示す熱処理曲線、印３図
ｔ、Ｊ： 、＋法匠より得ｆｒ：試験片についての焼付
ｐｖａ試験れ１１甲４−１従来の４４１．理］稈により
イ（ｔかものの結果Ｊ−タ・１比ｌ、で示゛１特性図訃
よび第４誌７゜
図“焼（−１ｒｅ ｉｒ、許べ験力法を示ノー枦式１図
である。
特許出願人 トヨタ自動車株式会社
第１図
才２ 図
１FIG. 1 is a correlation diagram showing the carburizing and nitriding treatment conditions in the heat treatment method for forming a lubricating film according to the present invention. (”, ?(
9) Heat treatment curve showing the heat treatment cycle of one method, mark 3 Figure t, J: , + obtained from Hosho fr: Baking PVA test on test piece 11A4-1 Conventional 441. The result of the culm is shown in J-ta-1 ratio, and in the 4th magazine 7゜fig. Figure 1. Patent applicant: Toyota Motor Corporation Figure 1: Figure 1
Claims (2)
焼入して１（十た部品に潤滑剤を旧着せしめ、（７がる
後に前記部品を低温焼もと（７することを特徴とする潤
滑皮膜形成熱処理方法。(1) After carburizing and nitriding in a nitrogen atmosphere, the parts are directly quenched and coated with lubricant. A lubricating film forming heat treatment method characterized by:
を・使用することを／１ｆｒＪｔと−する！持許請５１
りの範囲第１墳記載の潤滑皮膜形成熱処理方法。(2) Use thermosetting dry molybdenum disulfide as a lubricant and 1 to 1frJt! Request for permission 51
The lubricating film forming heat treatment method described in the first tomb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13927982A JPS5931864A (en) | 1982-08-11 | 1982-08-11 | Heat treatment for forming lubricating film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13927982A JPS5931864A (en) | 1982-08-11 | 1982-08-11 | Heat treatment for forming lubricating film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5931864A true JPS5931864A (en) | 1984-02-21 |
| JPH0517307B2 JPH0517307B2 (en) | 1993-03-08 |
Family
ID=15241578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13927982A Granted JPS5931864A (en) | 1982-08-11 | 1982-08-11 | Heat treatment for forming lubricating film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6092463A (en) * | 1983-10-26 | 1985-05-24 | Koyo Seiko Co Ltd | Heat treatment of rolling member |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5852474A (en) * | 1981-09-05 | 1983-03-28 | ル−カス・インダストリ−ズ・パブリツク・リミテツド・カンパニ− | Coated steel material and coating method |
-
1982
- 1982-08-11 JP JP13927982A patent/JPS5931864A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5852474A (en) * | 1981-09-05 | 1983-03-28 | ル−カス・インダストリ−ズ・パブリツク・リミテツド・カンパニ− | Coated steel material and coating method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6092463A (en) * | 1983-10-26 | 1985-05-24 | Koyo Seiko Co Ltd | Heat treatment of rolling member |
| JPH0356305B2 (en) * | 1983-10-26 | 1991-08-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0517307B2 (en) | 1993-03-08 |
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