JP2001026855A - Production of nickel solder-coated stainless steel sheet excellent in self-brazability - Google Patents
Production of nickel solder-coated stainless steel sheet excellent in self-brazabilityInfo
- Publication number
- JP2001026855A JP2001026855A JP20003499A JP20003499A JP2001026855A JP 2001026855 A JP2001026855 A JP 2001026855A JP 20003499 A JP20003499 A JP 20003499A JP 20003499 A JP20003499 A JP 20003499A JP 2001026855 A JP2001026855 A JP 2001026855A
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- Japan
- Prior art keywords
- stainless steel
- steel sheet
- brazing
- nickel
- roughness
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、Ni−Cr−Si系，Ni−B
−Si系などのニッケルろう被覆層を有するステンレス鋼
板の製造法に関し、特にプラズマ溶射にて鋼板との密着
性の良好な被覆層を形成するステンレス鋼板の製造方法
に関する。BACKGROUND OF THE INVENTION The present invention relates to a Ni-Cr-Si system, Ni-B
The present invention relates to a method for producing a stainless steel sheet having a nickel brazing coating layer of a Si type or the like, and particularly to a method for producing a stainless steel sheet which forms a coating layer having good adhesion to a steel sheet by plasma spraying.
【０００２】[0002]
【従来の技術】一般的なろう付け方法として、接合材同
士の界面に粉体化したろう材を付着させて加熱する方法
や、粉体ろう材をバインダーにより固化板状にした薄板
ろう材や急冷凝固法で作成したリボン状ろう材を接合界
面にインサートした後に真空炉で所定のろう付け温度に
加熱して接合する方法が行われている。例えば、高温で
耐食性が要求される熱交換器にはステンレス鋼板が用い
られているが、この熱交換器のステンレス鋼板同士の接
合には、銅ろう、銀ロウ及びニッケルろうなどによるろ
う付けによる接合方法が用いられている。また、ステン
レス鋼板の素材を用いた熱交換器では、６００℃以上の
使用環境になると銅ロウ及び銀ロウでは耐熱性が保証で
きないため、一般的にはニッケルろうを用いた接合が行
われている。2. Description of the Related Art As a general brazing method, a method in which powdered brazing material is adhered to an interface between joining materials and heating is performed, a thin brazing material in which powdered brazing material is solidified with a binder, and a thin plate brazing material is used. A method has been used in which a ribbon-shaped brazing material prepared by a rapid solidification method is inserted into a bonding interface and then heated to a predetermined brazing temperature in a vacuum furnace to perform bonding. For example, stainless steel sheets are used for heat exchangers that require corrosion resistance at high temperatures, and the stainless steel sheets of this heat exchanger are joined together by brazing using copper brazing, silver brazing, nickel brazing, or the like. A method is used. Further, in a heat exchanger using a stainless steel plate material, copper brazing and silver brazing cannot guarantee the heat resistance in a use environment of 600 ° C. or more, so that joining using nickel brazing is generally performed. .
【０００３】ステンレス鋼板自体に自己ろう付け性の機
能を付与させる方法として、ステンレス鋼板表面に有機
バインダーとともに溶剤を懸濁させたニッケルろう材を
塗布し、予備加熱により該溶剤を除去して前記ろう材の
被覆層を形成させたプレコートろう材被覆金属板材が特
開平１−２４９２９４に開示されている。As a method of imparting a function of self-brazing to a stainless steel plate itself, a nickel brazing material in which a solvent is suspended together with an organic binder is applied to the surface of the stainless steel plate, and the solvent is removed by preheating to remove the solder. Japanese Patent Application Laid-Open No. 1-249294 discloses a precoated brazing material-coated metal sheet having a coating layer formed of a material.
【０００４】また、特開平７−１０８３７２号には、ス
テンレス鋼製熱交換器をろう付け法で製造するに際し
て、大気中でガス溶射してろう付け部に３０〜３００μ
ｍのＮｉを主成分とする合金粉末の皮膜を形成した部材
と該皮膜を形成していない他の接合部材とを、真空中で
加熱して両者を接合一体化するろう付け方法が開示され
ており、ろう箔の使用が困難な大型あるいは複雑な形状
をした用途であっても、接合強度のばらつきが少なく、
且つ熱変形を生じないろう付け方法とろう付け用クラッ
ド材が示されている。Japanese Patent Application Laid-Open No. 7-108372 discloses that when a heat exchanger made of stainless steel is manufactured by a brazing method, the brazed portion is gas-sprayed in the atmosphere to form a heat exchanger of 30 to 300 μm.
A brazing method is disclosed in which a member formed with a film of an alloy powder containing Ni as a main component and another bonding member not formed with the film are heated in a vacuum to bond them together. Even in applications with large or complicated shapes where the use of brazing foil is difficult, there is little variation in bonding strength,
In addition, a brazing method and a brazing clad material that do not cause thermal deformation are shown.
【０００５】[0005]
【発明が解決しようとする課題】特開平１−２４９２９
４号に開示されているように、ニッケルろう粉末を有機
性バインダーで固めてステンレス鋼板表面に塗布する
と、真空炉にてろう付けする際の熱処理過程で、有機性
バインダーの蒸発により発生するガスが、溶融ろうの中
に入り込んで接合部をポーラスにしたり、炉の排気系に
悪影響を及ぼす。接合部に多量のニッケルろうを使用す
る場合には、この問題が顕著となり、引いては炉内の真
空度を悪化させることにより、ステンレス表面が不活性
状態となり、ろう付け不良が発生する問題があった。ま
た、ろう付け前にステンレス鋼板表面にニッケル粉体ろ
う材懸濁溶液を塗布するために、懸濁溶液の乾燥時間や
ハンドリング工数に多くの時間を要するだけでなく、ニ
ッケルろう材の均一な塗布が難しいために均一な強度を
有する接合が困難であった。Problems to be Solved by the Invention
As disclosed in No. 4, when the nickel brazing powder is solidified with an organic binder and applied to the surface of a stainless steel plate, a gas generated by evaporation of the organic binder in a heat treatment process when brazing in a vacuum furnace is performed. , Which may penetrate into the molten solder to make the joint porous and adversely affect the exhaust system of the furnace. When a large amount of nickel brazing is used for the joint, this problem becomes remarkable, and the stainless steel surface becomes inactive due to the deterioration of the degree of vacuum in the furnace. there were. In addition, since the nickel powder brazing material suspension solution is applied to the surface of the stainless steel plate before brazing, not only much time is required for the suspension solution drying time and handling man-hour, but also the nickel brazing material is uniformly applied. Therefore, it was difficult to join with uniform strength.
【０００６】特開平７−１０８３７２号に開示されてい
るガス溶射法によりろう付け用クラッド材を製造する際
には、ろう材が酸化することが懸念され、ろう付け後の
接合部において剥離が発生する可能性がある。When the brazing clad material is manufactured by the gas spraying method disclosed in Japanese Patent Application Laid-Open No. 7-108372, there is a concern that the brazing material may be oxidized, and peeling may occur at the joint after brazing. there's a possibility that.
【０００７】本発明は、以上のような問題を解決するた
めになされたもので、有機性バインダー等を用いること
なくニッケルろう被覆層を形成して、ろう付け後の接合
部強度に優れた自己ろう付け性に優れたニッケルろう被
覆ステンレス鋼板の製造方法を提供する。また、本発明
のニッケルろう被覆ステンレス鋼板は、接合部へのニッ
ケルろう材を適宜付与する必要がなく、複雑形状の接合
部あるいは広い面積においてもニッケルろう付けを可能
にするものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. A nickel brazing coating layer is formed without using an organic binder or the like, and a self-adhesive layer having excellent bonding strength after brazing is formed. Provided is a method for producing a nickel brazed stainless steel sheet having excellent brazing properties. In addition, the nickel brazing-coated stainless steel sheet of the present invention does not need to appropriately apply a nickel brazing material to a joint, and enables nickel brazing even in a joint having a complicated shape or a large area.
【０００８】[0008]
【課題を解決するための手段】本発明者らは、種々のニ
ッケルろう付け方法について検討した結果、ステンレス
鋼板の形状変化及び残留応力の発生を抑制しながら当該
ステンレス鋼板の表面粗さを最大粗さ（Ｒy）で２μm以
上かつ平均粗さ（Ｒａ）で０．２μｍ以上に調整した
後、ニッケルろう粉末の酸化を抑制しながらプラズマ溶
射にてニッケルろう被覆層を形成すると、ニッケルろう
と前記ステンレス鋼板との密着性が良好な自己ろう付け
性に優れたニッケルろう被覆ステンレス鋼板が得られる
ことを見出した。なお、ニッケルろう粉末の酸化を抑制
する方法としては、不活性ガスを供給してニッケルろう
粉末をプラズマ流中に供給する溶融噴射が好適である。
また、ステンレス鋼板の形状変化及び残留応力の発生を
抑制してステンレス鋼板の表面粗さを最大粗さ（Ｒy）
で２μm以上かつ平均粗さ（Ｒａ）で０．２μｍ以上に
調整する方法としては、ワイヤーブラシを用いてブラッ
シングすることが好適である。本発明で対象とするニッ
ケルろう材とはＪＩＳ Ｚ３２６５に規定されている８
種類のニッケルろうである。Means for Solving the Problems The present inventors have studied various nickel brazing methods and found that the surface roughness of the stainless steel sheet was reduced to the maximum roughness while suppressing the shape change and the occurrence of residual stress of the stainless steel sheet. After adjusting the nickel braze coating layer by plasma spraying while controlling the oxidation of the nickel braze powder after adjusting the roughness (Ry) to 2 μm or more and the average roughness (Ra) to 0.2 μm or more, the nickel braze and the stainless steel plate It has been found that a nickel braze-coated stainless steel sheet having good self-brazing properties and good adhesion to the steel can be obtained. As a method for suppressing the oxidation of the nickel brazing powder, it is preferable to employ a melt injection in which an inert gas is supplied to supply the nickel brazing powder into a plasma stream.
In addition, the surface roughness of the stainless steel sheet is reduced to the maximum roughness (Ry) by suppressing the shape change and the generation of residual stress of the stainless steel sheet.
As a method of adjusting the average roughness (Ra) to at least 2 μm and the average roughness (Ra) to at least 0.2 μm, brushing using a wire brush is preferable. The nickel brazing material targeted in the present invention is defined in JIS Z3265 8
Kind of nickel brazing.
【０００９】[0009]
【発明の実施の形態】本発明では、プラズマ溶射を行う
前にステンレス鋼板表面を最大粗さ（Ｒｙ）２μｍ以上
かつ平均粗さ（Ｒａ）で０．２μｍ以上に調整してニッ
ケルろう被覆層とステンレス鋼との密着性を高めてい
る。表１は、ステンレス鋼表面をワイヤーブラシで表面
粗さを変化させ後、ニッケルろうを同一のプラズマ溶射
条件で行った結果であり、表面粗さとニッケルろう皮膜
の密着性およびろう付け処理後の接合性との関係を示し
ている。最大粗さが２μｍ未満または平均粗さ（Ｒａ）
で０．２μｍ未満では、ニッケルろう被覆層とステンレ
ス鋼との密着性が悪く、ニッケルろう被覆層が剥離する
等のろう付け不良が発生しやすくなる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the surface of a stainless steel plate is adjusted to have a maximum roughness (Ry) of 2 μm or more and an average roughness (Ra) of 0.2 μm or more before plasma spraying, and a nickel brazing coating layer is formed. Increases adhesion to stainless steel. Table 1 shows the results obtained by changing the surface roughness of the stainless steel surface with a wire brush and then performing nickel brazing under the same plasma spraying conditions. It shows the relationship with gender. Maximum roughness less than 2 μm or average roughness (Ra)
If the thickness is less than 0.2 μm, the adhesion between the nickel brazing coating layer and the stainless steel is poor, and brazing defects such as peeling of the nickel brazing coating layer are likely to occur.
【００１０】[0010]
【表１】 [Table 1]
【００１１】本発明における最大粗さの調整手段として
は、ステンレス鋼板の形状を崩さずに、かつ残留応力を
極力抑えながら均一な粗さに調整できるワイヤーブラシ
を使用するのが好適である。ステンレス鋼板は、通常、
ショットブラスト等の衝突エネルギーを利用した粗面化
方法にて表面粗さ大きくして、形成される溶射皮膜のア
ンカー効果を高めていたが、ショットブラストを行うと
板形状が変化したり、残留応力が潜在化するために、プ
ラズマ溶射後に均一な皮膜厚みを得ることが困難とな
り、熱交換器等の複雑な形状に加工を施す際に成形性が
劣化する。この問題を回避するために、ステンレス鋼板
が変形しないように軽くショットブラストを施すことも
できるが、目標とする表面粗さが得られないので、ニッ
ケルろう被覆層とステンレス鋼板との密着性が劣化する
ことになる。As the means for adjusting the maximum roughness in the present invention, it is preferable to use a wire brush capable of adjusting the uniform roughness while maintaining the shape of the stainless steel sheet and minimizing the residual stress. Stainless steel plates are usually
The surface roughness was increased by the surface roughening method using collision energy such as shot blasting to increase the anchor effect of the formed thermal spray coating, but when shot blasting was performed, the plate shape changed and residual stress Is latent, making it difficult to obtain a uniform coating thickness after plasma spraying, and deteriorating formability when processing a complicated shape such as a heat exchanger. To avoid this problem, light blasting can be applied to the stainless steel plate so that it does not deform.However, the target surface roughness cannot be obtained, and the adhesion between the nickel brazing coating layer and the stainless steel plate deteriorates. Will do.
【００１２】さらに本発明では、発生したアーク中に不
活性ガスを導入してプラズマ流を作り出し、このプラズ
マ流にニッケルろう粉末を供給し溶射するので、ニッケ
ルろうの酸化が抑制されて接着強度に優れた被覆層を形
成することができる。通常のガスフレーム溶射では、酸
素−アセチレン混合ガスを燃焼炎として溶射するので、
ニッケルろう粉末が酸化しやすく、被覆の接合強度が劣
化する。Further, according to the present invention, a plasma stream is created by introducing an inert gas into the generated arc, and nickel brazing powder is supplied to the plasma stream for thermal spraying. An excellent coating layer can be formed. In normal gas flame spraying, since oxygen-acetylene mixed gas is sprayed as a combustion flame,
The nickel brazing powder is easily oxidized, and the bonding strength of the coating deteriorates.
【００１３】本発明のニッケルろう被覆ステンレス鋼板
を製造する設備としては、図１に示すように、コイル状
のステンレス鋼板を連続してワイヤーブラッシング装置
とプラズマ溶射装置に通板できるような構成にするとよ
い。また、切板の場合には、各々、ワイヤーブラッシン
グ装置とプラズマ溶射装置に供給できるようにするとよ
い。As shown in FIG. 1, the equipment for producing the nickel braze-coated stainless steel sheet of the present invention is configured so that a coiled stainless steel sheet can be continuously passed through a wire brushing apparatus and a plasma spraying apparatus. Good. Further, in the case of a cut plate, it is preferable that the cut plate can be supplied to a wire brushing device and a plasma spraying device, respectively.
【００１４】[0014]
【実施例】板厚0.5mm、幅300mm、長さ300mmのオーステ
ナイト系ステンレス鋼板（SUS304）の表面をワイヤーブ
ラッシングにより最大粗さ（Ｒｙ）５μｍ，平均粗さ
（Ｒａ）で０．５μｍに研磨した後、脱脂洗浄処理を行
った。プラズマ溶射は、不活性ガスを導入して発生させ
たプラズマ流に粒径20μｍのニッケルろう粉末（JISBNi
3：Ni−B−Si系）を供給して行い、ニッケルろう被覆厚
さが50μｍになるように仕上げた。また、比較例として
同条件にてワイヤーブラッシング，脱脂処理を施した
後、ニッケルろう粉末（JIS BNi3：Ni−B−Si系）をガ
スフレーム溶射して被覆層を形成した。別の比較例とし
て、同条件にてワイヤーブラッシング，脱脂処理を施し
た後、ニッケルろうを有機性バインダーで固めて塗布し
てニッケルろう被覆層を形成した。EXAMPLE The surface of an austenitic stainless steel plate (SUS304) having a thickness of 0.5 mm, a width of 300 mm and a length of 300 mm was polished by wire brushing to a maximum roughness (Ry) of 5 μm and an average roughness (Ra) of 0.5 μm. Thereafter, a degreasing cleaning treatment was performed. Plasma spraying is performed by introducing a nickel brazing powder (JISBNi
(3: Ni-B-Si system), and finished so that the nickel brazing coating thickness was 50 μm. As a comparative example, wire brushing and degreasing were performed under the same conditions, and a nickel brazing powder (JIS BNi3: Ni-B-Si system) was sprayed with a gas flame to form a coating layer. As another comparative example, after performing wire brushing and degreasing treatment under the same conditions, nickel brazing was solidified with an organic binder and applied to form a nickel brazing coating layer.
【００１５】ニッケルろうを被覆した各々のステンレス
鋼板から幅20mm、長さ100mmに切り出し、被接合材とし
て同寸法のオーステナイト系ステンレス鋼板（SUS304）
を図２に示すような幅20mmで長さ20mm部分を重ねて真空
炉に挿入し、真空度３×１０ -4torrに調整した後、1050
℃まで加熱してステンレス鋼板のろう付けを行った。Each stainless steel coated with nickel braze
Cut out from a steel plate to a width of 20 mm and a length of 100 mm as a material to be joined
Austenitic stainless steel plate with same dimensions (SUS304)
Vacuum by overlapping the 20mm wide and 20mm long parts as shown in Figure 2.
Insert into furnace, vacuum 3 × 10 -FourAfter adjusting to torr, 1050
℃ to braze the stainless steel plate.
【００１６】接合性の評価は、図２に示す引張せん断試
験を行い、図３に示すような母材（接合部以外）での破
断を良とし、図４に示すような接合部での剥離を不可と
した。接合性の評価結果を表２に示しているが、有機性
バインダーで固めたニッケルろう被覆ステンレス鋼板の
場合は、ろう付け接合部で剥離が発生しており、この剥
離部断面を観察すると、被覆層にポーラスな空孔が観察
された。これはろう付けの際、接合部に有機性バインダ
ーのガスが発生したことに依り、このガスの発生が接合
強度を劣化させたと推察される。For the evaluation of the bondability, a tensile shear test shown in FIG. 2 was conducted, and the fracture at the base material (other than the joint) as shown in FIG. 3 was determined to be good, and the peeling at the joint as shown in FIG. Was made impossible. Table 2 shows the evaluation results of the joining properties. In the case of the nickel brazing-coated stainless steel sheet solidified with an organic binder, peeling has occurred at the brazing joint. Porous pores were observed in the layer. This is presumed to be due to the generation of the organic binder gas at the joint during brazing, and the generation of this gas degraded the bonding strength.
【００１７】[0017]
【表２】 [Table 2]
【００１８】また、ガスフレーム溶射によりニッケルろ
うを被覆したステンレス鋼板の場合もろう付け接合部で
剥離が発生しており、接合強度に劣っていることが分か
る。これは、ガスフレーム溶射の際にニッケルろうが酸
化してしまったことが原因と推察される。これに対し
て、本発明のプラズマ溶射によりニッケルろうを被覆し
たステンレス鋼板では、ろう付け接合部以外の母材部分
で破断が生じており、ニッケルろうが酸化されることな
く被覆層が形成されたため、良好な接合強度が得られた
ことが分かる。Also, in the case of a stainless steel plate coated with nickel brazing by gas flame spraying, peeling occurs at the brazed joint, which indicates that the joint strength is poor. This is presumed to be due to oxidation of the nickel solder during gas flame spraying. On the other hand, in the stainless steel sheet coated with the nickel brazing by the plasma spraying of the present invention, the fracture occurred in the base material portion other than the brazing joint, and the coating layer was formed without oxidation of the nickel brazing. It can be seen that good bonding strength was obtained.
【００１９】[0019]
【発明の効果】以上のように、本発明では、ステンレス
鋼板表面をワイヤーブラシ等で適正な表面粗さに調整
し、ニッケルろう粉末の酸化を防止しながらプラズマ溶
射してニッケルろう被覆層を形成しているので、従来の
ようにニッケルろうを予め広範囲の接合部に敷く作業を
することなく、加工・組み立て後に加工品全体を熱処理
することで自己ろう付けが可能で、接合強度の優れた製
品が得られる。また、本発明のニッケルろう被覆ステン
レス鋼板を、高温環境使用される複雑な形状を有する熱
交換器等に適用して工業的規模の製造が可能となる。As described above, in the present invention, the surface of a stainless steel plate is adjusted to an appropriate surface roughness with a wire brush or the like, and a nickel brazing coating layer is formed by plasma spraying while preventing oxidation of the nickel brazing powder. The product has excellent bonding strength because it can be self-brazed by heat-treating the entire processed product after processing and assembling, without having to lay nickel brazing in advance over a wide range of joints as before. Is obtained. Further, the nickel braze-coated stainless steel sheet of the present invention can be applied to a heat exchanger having a complicated shape used in a high-temperature environment, and can be manufactured on an industrial scale.
【図１】 本発明のニッケルろう被覆ステンレス鋼板の
製造装置の概略図である。FIG. 1 is a schematic view of an apparatus for manufacturing a nickel brazed stainless steel sheet according to the present invention.
【図２】 引張せん断試験の概略図である。FIG. 2 is a schematic diagram of a tensile shear test.
【図３】 ろう付け接合強度が強い場合の引張せん断試
験後の破断状況を示す図である。FIG. 3 is a view showing a breaking state after a tensile shear test when brazing joint strength is strong.
【図４】 ろう付け接合強度が弱い場合の引張せん断試
験後に皮膜が剥離した状況を示す図である。FIG. 4 is a view showing a state in which a film is peeled off after a tensile shear test when the brazing strength is low.
１：ワイヤーブラシ ２：脱脂洗浄漕 ３：プラズマ溶射ガン ４：ステンレス鋼板 1: Wire brush 2: Degreasing cleaning tank 3: Plasma spray gun 4: Stainless steel plate
Claims (2)
発生を抑制しながら当該ステンレス鋼板の表面粗さを最
大粗さ（Ｒy）で２μm以上かつ平均粗さ（Ｒａ）で０．
２μｍ以上に調整した後、ニッケルろう粉末の酸化を抑
制しながらプラズマ溶射にてニッケルろう被覆層を形成
することを特徴とする自己ろう付け性に優れたニッケル
ろう被覆ステンレス鋼板の製造方法。1. The stainless steel sheet has a surface roughness of at least 2 μm in maximum roughness (Ry) and a mean roughness (Ra) of 0.1 μm while suppressing the change in shape and generation of residual stress of the stainless steel sheet.
A method for producing a nickel braze-coated stainless steel sheet having excellent self-brazing properties, comprising forming a nickel braze coating layer by plasma spraying while controlling the oxidation of the nickel braze powder after adjusting to 2 μm or more.
の表面粗さを最大粗さ（Ｒy）で２μm以上かつ平均粗さ
（Ｒａ）で０．２μｍ以上に調整することを特徴とする
請求項１に記載の自己ろう付け性に優れたニッケルろう
被覆ステンレス鋼板の製造方法。2. The method according to claim 1, wherein the surface roughness of the stainless steel plate is adjusted to 2 μm or more in maximum roughness (Ry) and 0.2 μm or more in average roughness (Ra) using a wire brush. A method for producing a nickel-brazed coated stainless steel sheet having excellent self-brazing properties as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20003499A JP2001026855A (en) | 1999-07-14 | 1999-07-14 | Production of nickel solder-coated stainless steel sheet excellent in self-brazability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20003499A JP2001026855A (en) | 1999-07-14 | 1999-07-14 | Production of nickel solder-coated stainless steel sheet excellent in self-brazability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001026855A true JP2001026855A (en) | 2001-01-30 |
Family
ID=16417730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20003499A Withdrawn JP2001026855A (en) | 1999-07-14 | 1999-07-14 | Production of nickel solder-coated stainless steel sheet excellent in self-brazability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001026855A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006097046A (en) * | 2004-09-28 | 2006-04-13 | Nissan Motor Co Ltd | Pretreatment method prior to thermal spraying, and cylinder block of engine |
| KR100592708B1 (en) | 2004-06-16 | 2006-06-26 | 주식회사 삼정산업 | The continued coating method of steel surface by Thermal spray |
| WO2009084526A1 (en) | 2007-12-28 | 2009-07-09 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferric stainless steel having excellent brazeability |
| WO2010047131A1 (en) | 2008-10-24 | 2010-04-29 | 新日鐵住金ステンレス株式会社 | Ferritic stainless steel sheet for egr coolers |
| JP2011163800A (en) * | 2010-02-05 | 2011-08-25 | Tohoku Univ | Simulated stress corrosion cracking test body and method of manufacturing the same |
| US8470237B2 (en) | 2006-05-09 | 2013-06-25 | Nippon Steel & Sumikin Stainless Steel Corporation | Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in resistance to crevice corrosion and formability, and ferritic stainless steel excellent in resistance to crevice corrosion |
| WO2016068291A1 (en) * | 2014-10-31 | 2016-05-06 | 新日鐵住金ステンレス株式会社 | Ferrite-based stainless steel with high resistance to corrosiveness caused by exhaust gas and condensation and high brazing properties and method for manufacturing same |
| JP2016089272A (en) * | 2014-10-31 | 2016-05-23 | 新日鐵住金ステンレス株式会社 | Ferritic stainless steel excellent in exhaust gas condensed water corrosion resistance and brazability and manufacturing method therefor |
-
1999
- 1999-07-14 JP JP20003499A patent/JP2001026855A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100592708B1 (en) | 2004-06-16 | 2006-06-26 | 주식회사 삼정산업 | The continued coating method of steel surface by Thermal spray |
| JP2006097046A (en) * | 2004-09-28 | 2006-04-13 | Nissan Motor Co Ltd | Pretreatment method prior to thermal spraying, and cylinder block of engine |
| JP4617807B2 (en) * | 2004-09-28 | 2011-01-26 | 日産自動車株式会社 | Thermal spray pretreatment method |
| US8470237B2 (en) | 2006-05-09 | 2013-06-25 | Nippon Steel & Sumikin Stainless Steel Corporation | Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in resistance to crevice corrosion and formability, and ferritic stainless steel excellent in resistance to crevice corrosion |
| WO2009084526A1 (en) | 2007-12-28 | 2009-07-09 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferric stainless steel having excellent brazeability |
| WO2010047131A1 (en) | 2008-10-24 | 2010-04-29 | 新日鐵住金ステンレス株式会社 | Ferritic stainless steel sheet for egr coolers |
| JP2011163800A (en) * | 2010-02-05 | 2011-08-25 | Tohoku Univ | Simulated stress corrosion cracking test body and method of manufacturing the same |
| WO2016068291A1 (en) * | 2014-10-31 | 2016-05-06 | 新日鐵住金ステンレス株式会社 | Ferrite-based stainless steel with high resistance to corrosiveness caused by exhaust gas and condensation and high brazing properties and method for manufacturing same |
| JP2016089272A (en) * | 2014-10-31 | 2016-05-23 | 新日鐵住金ステンレス株式会社 | Ferritic stainless steel excellent in exhaust gas condensed water corrosion resistance and brazability and manufacturing method therefor |
| US10752973B2 (en) | 2014-10-31 | 2020-08-25 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferrite-based stainless steel with high resistance to corrosiveness caused by exhaust gas and condensation and high brazing properties and method for manufacturing same |
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