JPH036385A - Ceramic coating method - Google Patents
Ceramic coating methodInfo
- Publication number
- JPH036385A JPH036385A JP13802589A JP13802589A JPH036385A JP H036385 A JPH036385 A JP H036385A JP 13802589 A JP13802589 A JP 13802589A JP 13802589 A JP13802589 A JP 13802589A JP H036385 A JPH036385 A JP H036385A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- ceramic powder
- layer
- laser beam
- coating
- 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
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005524 ceramic coating Methods 0.000 title claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 52
- 239000000843 powder Substances 0.000 claims abstract description 37
- 238000007747 plating Methods 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 24
- 238000000576 coating method Methods 0.000 abstract description 15
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 10
- 239000011247 coating layer Substances 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 239000007769 metal material Substances 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000005552 hardfacing Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、耐焼付性、耐摩耗性、潤滑性。[Detailed description of the invention] [Industrial application field] The present invention is characterized by seizure resistance, wear resistance, and lubricity.
耐食性を要する摺動部材の表面加工に好適なセラミック
被覆方法に関する。The present invention relates to a ceramic coating method suitable for surface processing of sliding members that require corrosion resistance.
従来、高温雰囲気や高面圧下で潤滑油膜が十分に形成さ
れない条件下で使用される摺動部材の表面硬化加工には
、耐熱、耐摩耗性。Conventionally, heat-resistant and abrasion-resistant materials are used for surface hardening of sliding parts, which are used in high-temperature environments and under high surface pressure conditions where a lubricating oil film is not sufficiently formed.
耐食性等を確保するため硬化肉盛溶接、溶射皮膜、メツ
キ等が広く採用されている。また母材自身を相変態させ
硬化する高周波焼入れレーザー焼入れ等もある。Hardfacing welding, thermal spray coating, plating, etc. are widely used to ensure corrosion resistance. There is also induction hardening, laser hardening, etc., which hardens the base material itself through phase transformation.
しかしながら、このような表面硬化加工方法には次のよ
うな問題がある。However, such surface hardening processing methods have the following problems.
（１１母材自身を相変態させる高周波焼入れレーザー焼
入れでは、高温下での使用では軟化し、また腐食環境下
では使用不可能である。(11) In induction hardening and laser hardening, which transforms the base material itself, it becomes soft when used at high temperatures and cannot be used in corrosive environments.
（２）硬化肉盛溶接では、溶接割れが発生し易く、溶接
割れ防止のため高温予熱や下盛溶接を施す必要があり、
母材の熱変形が大きくなり多大な工数を要する。(2) In hardfacing welding, weld cracking is likely to occur, and it is necessary to perform high temperature preheating and underlay welding to prevent weld cracking.
Thermal deformation of the base material increases, requiring a large amount of man-hours.
（３）溶射皮膜は、母材との密着力が弱いため適用範囲
が限定され、また一般に溶射皮膜中には多くの気孔が多
、発し摺動部材として使用中に皮膜自身の層状はくりを
生ずる。(3) Thermal sprayed coatings have a weak adhesion to the base material, which limits their applicability, and generally there are many pores in the thermal sprayed coatings, which may cause the coating to peel off its own layer while being used as a sliding member. arise.
耐食皮膜として使用する場合には、腐食液又はガスが溶
射皮膜の気孔を通って母材を腐食させる欠点がある。When used as a corrosion-resistant coating, there is a drawback that corrosive liquid or gas passes through the pores of the sprayed coating and corrodes the base material.
（４） ニッケル、クロームメツキでは、メッキ厚さ
が薄く熱応力等による割れの発生があり、また厚肉化が
困難である。(4) With nickel and chrome plating, the plating thickness is thin and cracks may occur due to thermal stress, etc., and it is difficult to increase the thickness.
本発明は、このような事情に鑑みて提案されたもので、
被加工金属母材への固着力が強固であり割れの発生もな
く、また被覆時の熱源でのセラミック粉末の分解や溶融
が防止されるとともに、厚肉化が可能な耐熱、耐摩耗性
、耐食性の優れたセラミック硬化層が得られるセラミッ
ク被覆方法を提供することを目的とする。The present invention was proposed in view of these circumstances, and
It has strong adhesion to the workpiece metal base material and does not cause cracks, prevents the ceramic powder from decomposing or melting in the heat source during coating, and has heat and wear resistance that allows for thicker walls. It is an object of the present invention to provide a ceramic coating method that provides a ceramic hardened layer with excellent corrosion resistance.
そのために本発明は、セラミック粉末の表面にＮｉメツ
キを施し、被加工金属表面に同セラミック粉末をおいて
レーザービームを照射し被覆することを特徴とする。To this end, the present invention is characterized in that the surface of the ceramic powder is plated with Ni, and the ceramic powder is placed on the surface of the metal to be processed and irradiated with a laser beam to cover it.
本発明方法においては、耐熱、耐摩耗性。 In the method of the present invention, heat resistance and abrasion resistance.
耐食性に優れるセラミック粉末を被加工金属表面にレー
ザーエネルギにより被覆するにあたり、セラミック粉末
を直積被覆すると割れが発生し、また被覆できてもセラ
ミックの母材への固着力が低く使用中に欠落することも
゛考えられるので、被覆する前にセラミック粉末自身に
Ｎｉメツキして被加工金属との接合を強固にするととも
に、被覆時のレーザーエネルギでのセラミック粉末の分
解や溶融を防止する。また必要に応じ、潤滑性のある物
質の粉末にＮｉメツキを施し、Ｎｉメツキされたセラミ
ック粉末と混合させて被覆すると、潤滑性の優れたセラ
ミック硬化層が得られる。When applying ceramic powder, which has excellent corrosion resistance, to the surface of the metal to be processed using laser energy, cracks may occur if the ceramic powder is directly applied, and even if the ceramic powder can be applied directly, the adhesive strength of the ceramic to the base material is low and it may break off during use. Therefore, before coating, the ceramic powder itself is plated with Ni to strengthen the bond with the metal to be processed, and to prevent the ceramic powder from being decomposed or melted by the laser energy during coating. Further, if necessary, a ceramic hardened layer with excellent lubricity can be obtained by applying Ni plating to a powder of a lubricating substance and mixing it with Ni-plated ceramic powder for coating.
本発明セラミック被覆方法の実施例を図面について説明
すると、第１図〜第４図は第１実施例を示し、第１図は
被覆方法の要領を示す模式図、第２図はセラミック粉末
の断面図、第３図はセラミック硬化層の組織図、第４図
はセラミ’）り硬化層の硬さを示す線図、第５図、第６
図は第２実施例を示し、第５図は固体潤滑剤粉末の断面
図、第６図はセラミ’７り硬化層の組織図である。Embodiments of the ceramic coating method of the present invention will be explained with reference to the drawings. FIGS. 1 to 4 show the first embodiment, FIG. 1 is a schematic diagram showing the outline of the coating method, and FIG. 2 is a cross-section of the ceramic powder. Figure 3 is a structure diagram of the ceramic hardened layer, Figure 4 is a diagram showing the hardness of the ceramic hardened layer, Figures 5 and 6 are
The figures show the second embodiment, FIG. 5 is a sectional view of the solid lubricant powder, and FIG. 6 is a diagram of the structure of the hardened ceramic layer.
まず第１実施例の第１図において、被加工金属１の表面
に散布固着されるセラミック粉末散布層４のセラミック
粉末は、第２図に示すように、予めＡｌ２Ｏ，、ＷＣ等
セラミック粉末２の表面にＮｉメツキ３が施されており
、このセラミック粉末散布層４に対し、図示せざるレー
ザー発振器より出たレーザービーム５を、集光レンズ６
で集束しレーザービーム照射部のビームスポット径が５
重璽になる位置関係で照射する。このとき、レーザー出
力は３．ＯＫＷ、処理速度■は０．２ ｍ ／ ｍｉｎ
が好ましい。First, in FIG. 1 of the first embodiment, the ceramic powder of the ceramic powder scattering layer 4 which is spread and fixed on the surface of the workpiece metal 1 is preliminarily coated with ceramic powder 2 such as Al2O, WC, etc., as shown in FIG. Ni plating 3 is applied to the surface, and a laser beam 5 emitted from a laser oscillator (not shown) is directed onto this ceramic powder scattering layer 4 through a condensing lens 6.
The beam spot diameter of the laser beam irradiation part is 5
Irradiate in a position that creates a heavy seal. At this time, the laser output is 3. OKW, processing speed ■ is 0.2 m/min
is preferred.
するとセラミック粉末散布層４はレーザーエネルギによ
り熔融して溶融地７となり、その後硬化してセラミック
硬化Ｎ８を被覆形成する。このセラミック硬化層８は、
第３図に示すように、セラミック粉末２が均一に分散。Then, the ceramic powder scattering layer 4 is melted by the laser energy to form a molten base 7, which is then hardened to form a coating with a hardened ceramic N8. This ceramic hardened layer 8 is
As shown in Figure 3, the ceramic powder 2 is uniformly dispersed.
残留している。また第４図にセラミック硬化層の硬さ分
布を示すが、高硬度の被覆層が得られている。remains. Further, FIG. 4 shows the hardness distribution of the ceramic hardened layer, and a coating layer with high hardness was obtained.
次にグラファイト窒化ホウ素等潤滑性のある物質を混入
する場合の第２実施例を説明すると、第５図に示すよう
に、固体潤滑剤９の表面にＮｉメツキ３を施した後、第
２図のＮｉメツキ３を施したセラミック粉末２と混合し
て、第１図に示すように、被加工金属１の表面に散布し
固着する。以下前述と同様の手順、施工条件にてレーザ
ービームによる被覆を施工する。Next, a second embodiment in which a lubricating substance such as graphite boron nitride is mixed will be described.As shown in FIG. 5, after Ni plating 3 is applied to the surface of the solid lubricant 9, as shown in FIG. The powder is mixed with the ceramic powder 2 coated with Ni plating 3, and as shown in FIG. 1, it is spread and fixed on the surface of the metal to be processed 1. The coating is then applied using a laser beam using the same procedure and application conditions as described above.
その結果第６図に示すように、セラミック粉末２と同様
に固体潤滑剤９が均一に分散残留し、良好なセラミック
の被覆層が得られる。As a result, as shown in FIG. 6, the solid lubricant 9 remains uniformly dispersed in the same way as the ceramic powder 2, and a good ceramic coating layer is obtained.
かくして本発明方法によれば、Ａｌ２Ｏ，。Thus, according to the method of the invention, Al2O,.
ＷＣ等セラミック粉末２にＮｉメツキ３を施すことによ
り、被加工金属１母材への固着力が強固となり割れの発
生もなく、またレーザービーム５によるセラミック粉末
２の分解や熔融が防止され、耐熱、耐摩耗性、耐食性の
優れたセラミック硬化層８が得られる。更にグラファイ
ト、窒化ホウ素等固体潤滑剤９にＮｉメツキ３を施しＮ
ｉメツキ３されたセラミック粉末２と混合することによ
り、セラミック硬化層８内に固体潤滑剤９が混入し、耐
熱、耐摩耗性、耐食性、潤滑性の優れたセラミック硬化
層８が得られる。By applying Ni plating 3 to the ceramic powder 2 such as WC, the adhesion to the workpiece metal 1 base material becomes strong, no cracking occurs, and the ceramic powder 2 is prevented from being decomposed or melted by the laser beam 5, making it heat resistant. A ceramic hardened layer 8 having excellent wear resistance and corrosion resistance is obtained. Furthermore, solid lubricant 9 such as graphite or boron nitride is coated with Ni plating 3.
By mixing with the i-plated ceramic powder 2, the solid lubricant 9 is mixed into the ceramic hardened layer 8, resulting in a ceramic hardened layer 8 having excellent heat resistance, wear resistance, corrosion resistance, and lubricity.
要するに本発明によれば、セラミック粉末の表面にＮｉ
メツキを施し、被加工金属表面に同セラミック粉末をお
いてレーザービームを照射し被覆することにより、被加
工金属母材への固着力が強固であり割れの発生もなく、
また被覆時の熱源でのセラミック粉末の分解や溶融が防
止されるとともに、厚肉化が可能な耐熱、耐摩耗性、耐
食性の優れたセラミック硬化層が得られるセラミック被
覆方法を得るから、本発明は産業上極めて有益なもので
ある。In short, according to the present invention, Ni is deposited on the surface of the ceramic powder.
By applying plating, placing the same ceramic powder on the surface of the metal to be processed, and irradiating it with a laser beam to cover it, the adhesion to the metal base material to be processed is strong and there will be no cracking.
Furthermore, the present invention provides a ceramic coating method that prevents the decomposition and melting of ceramic powder in the heat source during coating, and provides a ceramic hardened layer that can be thickened and has excellent heat resistance, wear resistance, and corrosion resistance. is extremely useful for industry.
第１図〜第４図は本発明セラミック被覆方法の第１実施
例を示し、第１図は被覆方法の要領を示す模式図、第２
図はセラミック粉末の断面図、第３図はセラミック硬化
層の組織図、第４図はセラミック硬化層の硬さを示す線
図、第５図、第６図は第２実施例を示し、第５図は固体
潤滑剤粉末の断面図、第６図はセラミック硬化層の組織
図である。
１・・・被加工金属、２・・・セラミック粉末、３・・
・Ｎｉメツキ、４・・・セラミック粉末散布層、５・・
・レーザービーム、６・・・集光レンズ、７・・・溶融
池、８・・・セラミック硬化層、９・・・固体潤滑剤。1 to 4 show a first embodiment of the ceramic coating method of the present invention, FIG. 1 is a schematic diagram showing the outline of the coating method, and FIG.
The figure is a cross-sectional view of the ceramic powder, Figure 3 is the structure diagram of the hardened ceramic layer, Figure 4 is a diagram showing the hardness of the hardened ceramic layer, Figures 5 and 6 show the second embodiment, FIG. 5 is a cross-sectional view of the solid lubricant powder, and FIG. 6 is a structural diagram of the ceramic hardened layer. 1...Work metal, 2...Ceramic powder, 3...
・Ni plating, 4...ceramic powder scattering layer, 5...
- Laser beam, 6... Condensing lens, 7... Molten pool, 8... Ceramic hardening layer, 9... Solid lubricant.
Claims (1)
属表面に同セラミック粉末をおいてレーザービームを照
射し被覆することを特徴とするセラミック被覆方法。A ceramic coating method characterized by applying Ni plating to the surface of ceramic powder, placing the ceramic powder on the surface of a metal to be processed, and irradiating the surface with a laser beam to cover the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13802589A JPH036385A (en) | 1989-05-31 | 1989-05-31 | Ceramic coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13802589A JPH036385A (en) | 1989-05-31 | 1989-05-31 | Ceramic coating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036385A true JPH036385A (en) | 1991-01-11 |
Family
ID=15212292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13802589A Pending JPH036385A (en) | 1989-05-31 | 1989-05-31 | Ceramic coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036385A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243323A (en) * | 2013-05-09 | 2013-08-14 | 张佑锋 | Preparation method of special flexible ceramic composite infiltration layer |
-
1989
- 1989-05-31 JP JP13802589A patent/JPH036385A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243323A (en) * | 2013-05-09 | 2013-08-14 | 张佑锋 | Preparation method of special flexible ceramic composite infiltration layer |
| CN103243323B (en) * | 2013-05-09 | 2015-01-14 | 张佑锋 | Preparation method of special flexible ceramic composite infiltration layer |
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