JPH05306435A - Fe-cr alloy excellent in workability and corrosion resistance - Google Patents
Fe-cr alloy excellent in workability and corrosion resistanceInfo
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- JPH05306435A JPH05306435A JP11101392A JP11101392A JPH05306435A JP H05306435 A JPH05306435 A JP H05306435A JP 11101392 A JP11101392 A JP 11101392A JP 11101392 A JP11101392 A JP 11101392A JP H05306435 A JPH05306435 A JP H05306435A
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は加工性および耐食性に優
れた高純度のＦｅ−Ｃｒ合金に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-purity Fe-Cr alloy excellent in workability and corrosion resistance.
【０００２】[0002]
【従来の技術】一般にＦｅ−Ｃｒ合金は耐食性に優れた
材料として知られているが、耐食性および加工性の改善
も含めてＦｅ−Ｃｒ合金の物性の改良が以下に例示のご
とくに各種提案されている。2. Description of the Related Art Generally, an Fe--Cr alloy is known as a material having excellent corrosion resistance, but various improvements such as the corrosion resistance and workability of the Fe--Cr alloy have been proposed as exemplified below. ing.
【０００３】特公昭６３−５８９０４号公報ではＣｒ含
量１１．０〜１６．０重量％のＦｅ−Ｃｒ合金で、特に
Ｔｉ含量を特定量とした張り出し性および二次加工性に
優れたフェライト系ステンレス鋼を提案している。In Japanese Examined Patent Publication No. 63-58904, an Fe-Cr alloy having a Cr content of 11.0 to 16.0% by weight, in particular, a ferritic stainless steel having a Ti content as a specific amount and being excellent in overhanging property and secondary workability. Proposing steel.
【０００４】特公昭６４−６２６４号公報ではＣｒ含量
８．０〜３５．０重量％のＦｅ−Ｃｒ合金で、特にＳ
ｉ，ＭｎおよびＮｂを各々特定量含有せしめた耐銹性に
優れたステンレス鋼光輝焼鈍材を提案している。JP-B-64-6264 discloses a Fe-Cr alloy having a Cr content of 8.0 to 35.0% by weight, especially S
It proposes a stainless steel bright annealed material which contains i, Mn and Nb in specific amounts and has excellent rust resistance.
【０００５】特公平２−１９０２号公報ではＣｒ含量が
２０．０重量％を越え２５重量％以下のＦｅ−Ｃｒ合金
で、特にＭｏ，ＭｎおよびＮｂを各々特定量含有せしめ
た溶接時の耐高温割れ性および溶接部靱性に優れた耐食
性フェライトステンレス鋼を提案している。In Japanese Patent Publication No. 2-1902, a Fe-Cr alloy having a Cr content of more than 20.0% by weight and 25% by weight or less, in particular, Mo, Mn and Nb each containing a specific amount of high temperature resistance during welding. We propose a corrosion-resistant ferritic stainless steel with excellent crackability and weld toughness.
【０００６】特開昭６１−１８６４５１号公報ではＣｒ
含量が２５〜５０重量％のＦｅ−Ｃｒ合金で、特にＳ
ｉ，ＭｎおよびＭｏを特定量含有せしめた耐サワー性に
優れた合金を提案している。In JP-A-61-186451, Cr is used.
Fe-Cr alloy with a content of 25 to 50% by weight, especially S
It proposes an alloy containing specific amounts of i, Mn and Mo and having excellent sour resistance.
【０００７】特開昭６２−２６７４５０号公報ではＣｒ
含量１６〜１９重量％のＦｅ−Ｃｒ系合金であって、特
にＭｏを特定量含有せしめた耐粒界腐食性に優れる高純
度フェライト系ステンレス鋼を提案している。In JP-A-62-267450, Cr is used.
A high-purity ferritic stainless steel, which is an Fe-Cr alloy having a content of 16 to 19% by weight, and in which a specific amount of Mo is particularly contained and which is excellent in intergranular corrosion resistance, is proposed.
【０００８】特開平１−２８７２５３号公報ではＣｒ含
量１５〜２６重量％、Ａｌ含量４〜６重量％のＦｅ−Ｃ
ｒ−Ａｌ合金であって、希土類元素を少量特定量含有せ
しめた耐酸化性および製造性に優れたＡｌ含有フェライ
ト系ステンレス鋼を提案している。In Japanese Patent Laid-Open No. 1-287253, Fe-C having a Cr content of 15 to 26% by weight and an Al content of 4 to 6% by weight.
It proposes an Al-containing ferritic stainless steel which is an r-Al alloy and which contains a small amount of a specified amount of a rare earth element and is excellent in oxidation resistance and manufacturability.
【０００９】特開平２−２３２３４４号公報ではＣｒ含
量２５．０〜３０．０重量％のＦｅ−Ｃｒ系合金であっ
て、特にＭｏを特定量含有せしめた耐生物付着性および
耐海水性に優れたフェライト系ステンレス鋼を提案して
いる。In Japanese Patent Laid-Open No. 2-232344, a Fe-Cr alloy having a Cr content of 25.0 to 30.0% by weight is used, and in particular, a specific amount of Mo is contained, which is excellent in biofouling resistance and seawater resistance. Ferritic stainless steel is proposed.
【００１０】特開平３−２３５５号公報ではＣｒ含量１
６．０〜２５．０重量％のＦｅ−Ｃｒ合金であって、特
にＮｂをＣとＮの合計量との比において特定量含有せし
めた冷間加工性、靱性、耐食性に優れたフェライト系ス
テンレス鋼を提案している。In Japanese Patent Application Laid-Open No. 3-2355, the Cr content is 1
A ferritic stainless steel having a Fe-Cr alloy content of 6.0 to 25.0% by weight, in which Nb is contained in a specific amount in the ratio of the total amount of C and N and which is excellent in cold workability, toughness, and corrosion resistance. Proposing steel.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら、これら
の先行技術において提案されたＦｅ−Ｃｒ合金は、耐食
性および成形性のいずれをも充分に満たすものではな
い。一般的にＣｒ量の増加と共に耐食性は増加するが、
反面、延性が低下して加工性が低下する。上記の種々の
提案では、ステンレス鋼の最も重要な特性である耐食性
を損なわないようＣｒ量を比較的多く使用しているの
で、加工性を犠牲にしている。前記特開平３−２３５５
号公報では、Ｎｂを特定量加えて加工性の向上を狙って
いるが、それでもなお限界がある。また、当然ながらＣ
ｒの多量の使用は合金のコストが高くなる。However, the Fe-Cr alloys proposed in these prior arts do not sufficiently satisfy both corrosion resistance and formability. Generally, the corrosion resistance increases as the Cr content increases,
On the other hand, the ductility decreases and the workability decreases. In the above various proposals, workability is sacrificed because a relatively large amount of Cr is used so as not to impair the corrosion resistance, which is the most important characteristic of stainless steel. JP-A-3-2355
In the gazette, a specific amount of Nb is added to improve workability, but there is still a limit. Also, of course C
The use of large amounts of r increases the cost of the alloy.
【００１２】かくして、本発明の目的は耐食性および成
形性が高い水準でバランスが取れ、しかも安価に製造し
得るＦｅ−Ｃｒ合金を提供することである。Thus, it is an object of the present invention to provide a Fe-Cr alloy which is well balanced in corrosion resistance and formability and can be manufactured at low cost.
【００１３】[0013]
【課題を解決するための手段】本発明者は、上記目的を
達成すべく鋭意研究を行った結果、従来Ｆｅ−Ｃｒ合金
に存在していたＣ，Ｎ，Ｏ，Ｐ，Ｓなどの不純物を低下
させ、不可避的に存在したか、あるいは積極的に添加す
る場合もあるＡｌ，Ｔｉなどの元素の存在量を低下させ
た結果、意外にも極めて高純度で比較的低Ｃｒ含量のＦ
ｅ−Ｃｒ合金が上記目的を達成することを見い出し、本
発明を完成するに至った。As a result of earnest studies to achieve the above object, the present inventor has found that impurities such as C, N, O, P and S, which were conventionally present in Fe-Cr alloys, are removed. As a result of reducing the existing amount of elements such as Al and Ti which are unavoidably present or may be positively added, as a result of surprisingly high purity and relatively low Cr content of F,
It has been found that the e-Cr alloy achieves the above object, and has completed the present invention.
【００１４】すなわち、本発明によればＦｅとＣｒの合
計含量が９９．９８重量％以上かつＣｒ含量が０．５〜
１２重量％である加工性と耐食性に優れた超高純度のＦ
ｅ−Ｃｒ合金が提供される。That is, according to the present invention, the total content of Fe and Cr is 99.98% by weight or more and the content of Cr is 0.5 to.
Ultra-high purity F with excellent workability and corrosion resistance of 12% by weight
An e-Cr alloy is provided.
【００１５】[0015]
【作用】本発明の理解のために、図面を用いて説明す
る。図１は、供試材（Ｆｅ−１１．２％Ｃｒ）の引張試
験により伸びを測定した結果を示すものである。この図
から明らかなように、Ｆｅ，Ｃｒ以外の成分の総和が
０．０２重量％未満、即ちＦｅとＣｒの合計量が９９．
９８％以上の場合において伸びが極めて高いことが明ら
かである。To understand the present invention, description will be given with reference to the drawings. FIG. 1 shows the results obtained by measuring the elongation of a test material (Fe-11.2% Cr) by a tensile test. As is clear from this figure, the sum of the components other than Fe and Cr is less than 0.02% by weight, that is, the total amount of Fe and Cr is 99.
It is clear that the elongation is extremely high in the case of 98% or more.
【００１６】なお、試験片の調製および測定法は以下の
ごとくである。 試験片：１０ｋｇ真空炉で溶解、鋳造し、熱間で４ｍｍ
厚まで圧延後、再結晶焼鈍し、脱スケール後冷間で０．
７ｍｍ厚まで圧延後、再結晶焼鈍し、供試材とした。 測定法：試験片を圧延方向に対してＬ方向、Ｃ方向、Ｘ
方向より採取し、ＪＩＳ Ｚ−２２４１に準拠した引張
試験により伸びとして、各方向の平均すなわち（Ｌ＋Ｃ
＋２×Ｘ）／４で求めた。The method for preparing and measuring the test piece is as follows. Test piece: 10 kg, melted and cast in a vacuum furnace, hot 4 mm
After rolling to thickness, recrystallization annealing was performed, and descaling was followed by cold cooling.
After rolling to a thickness of 7 mm, recrystallization annealing was performed to obtain a test material. Measurement method: L-direction, C-direction, X-direction of the test piece with respect to the rolling direction
Samples were taken from each direction, and the tensile test based on JIS Z-2241 gave the average of each direction, that is, (L + C
+ 2 × X) / 4.
【００１７】図２は、ＦｅとＣｒの合計量が９９．９８
重量％以上および９９．９８重量％未満の各々の合金に
つき、Ｃｒ含量と耐食性の試験を行った結果を示してい
る。In FIG. 2, the total amount of Fe and Cr is 99.98.
The results of the Cr content test and the corrosion resistance test are shown for each of the alloys of more than or equal to wt% and less than 99.98 wt%.
【００１８】耐食性は、大気暴露試験を６ケ月間行い、
以下のように評価した。 Ａ：赤錆全くなし Ｂ：わずかに赤錆発生 Ｃ：赤錆中程度発生 Ｄ：著しく赤錆発生 試験片の調製：１０ｋｇ真空炉で溶解、鋳造し、熱間で
４ｍｍ厚まで圧延後、再結晶焼鈍し、脱スケール後冷間
で０．７ｍｍ厚まで圧延後、再結晶焼鈍した鋼板表面を
エメリー＃５００研磨して試験に供した。 試験法：千葉の海岸地区（海岸線より１０ｍのところ）
で６ケ月間暴露した。The corrosion resistance was evaluated by carrying out an atmospheric exposure test for 6 months.
It evaluated as follows. A: No red rust at all B: Slight red rust occurred C: Red rust was moderately generated D: Significant red rust occurred Preparation of test piece: 10 kg melting in a vacuum furnace, casting, hot rolling to 4 mm thickness, recrystallization annealing, After descaling, it was cold rolled to a thickness of 0.7 mm, and the recrystallized annealed steel plate surface was polished by Emery # 500 and used for the test. Test method: Chiba coastal area (10m from the coastline)
Exposed for 6 months.
【００１９】図２から明らかなように、ＦｅとＣｒの合
計量が９９．９８重量％以上の場合、Ｃｒ含量が０．５
重量％から耐食性が向上し、５重量％以上となると著し
く耐食性に優れることが明らかである。As is clear from FIG. 2, when the total amount of Fe and Cr is 99.98% by weight or more, the Cr content is 0.5.
It is clear that the corrosion resistance is improved from the weight percent, and the corrosion resistance is remarkably excellent when it is 5 weight percent or more.
【００２０】一方、ＦｅとＣｒの合計量が９９．９８重
量％未満の場合、Ｃｒ含量が１０％以上になってはじめ
て耐食性が改善されることがわかる。すなわち、Ｆｅ−
Ｃｒ系合金で著しく高純度化することにより、極低Ｃｒ
量で耐食性が良好となることがわかる。従来、１８％程
度必要であったＣｒ量が（Ｆｅ＋Ｃｒ）≧９９．９８重
量％とすることにより、２．５％程度で同等の耐食性が
得られる。On the other hand, when the total amount of Fe and Cr is less than 99.98% by weight, it can be seen that the corrosion resistance is improved only when the Cr content is 10% or more. That is, Fe-
Extremely low Cr due to extremely high purity with Cr-based alloy
It can be seen that the corrosion resistance becomes good depending on the amount. Conventionally, by setting the amount of Cr required to be about 18% to (Fe + Cr) ≧ 99.98% by weight, equivalent corrosion resistance can be obtained at about 2.5%.
【００２１】[0021]
【構成】以下、本発明の構成を詳述する。本発明のＦｅ
−Ｃｒ合金のＦｅとＣｒの合計量は９９．９８重量％以
上である。９９．９８重量％未満であると、〔作用〕の
項で述べたように延性が低下すると共に、耐食性も低
い。ＦｅとＣｒの合計量が上記範囲であることによっ
て、延性と耐食性の両方が高い水準となる。[Structure] The structure of the present invention is described in detail below. Fe of the present invention
The total amount of Fe and Cr in the -Cr alloy is 99.98% by weight or more. If it is less than 99.98% by weight, the ductility is lowered and the corrosion resistance is also low as described in the section [Operation]. When the total amount of Fe and Cr is within the above range, both ductility and corrosion resistance are high.
【００２２】また、Ｃｒ含量は０．５〜１２重量％、好
ましくは２〜１２重量％である。Ｃｒ含量が１２重量％
を超えた場合、本発明の検討範囲内では特に耐食性が優
れることもなく、むしろ延性が低下するとともに、コス
ト的にも高くなる。The Cr content is 0.5 to 12% by weight, preferably 2 to 12% by weight. Cr content is 12% by weight
If it exceeds, the corrosion resistance is not particularly excellent within the scope of the present invention, rather the ductility is lowered and the cost is increased.
【００２３】このようにＦｅとＣｒの合計量が９９．９
８重量％以上で、しかもＣｒ：０．５〜１２重量％とす
ることにより、著しく高耐食性で高加工性を有するＦｅ
−Ｃｒ合金が得られる。Thus, the total amount of Fe and Cr is 99.9.
Fe having a remarkably high corrosion resistance and a high workability by containing 8% by weight or more and Cr: 0.5 to 12% by weight.
-Cr alloy is obtained.
【００２４】従来のＦｅ−Ｃｒ合金に通常含有されてい
る不純物元素とては、Ｃ，Ｎ，Ｏ，Ｐ，Ｓ，Ｓｉ，Ｍ
ｎ，Ａｌ，Ｍｏ，Ｔｉ，Ｖ，Ｎｂ，Ｗ，Ｚｒ，Ｔａ，
Ｂ，Ｎｉ，Ｃｕ，Ｃｏ，Ｃａ，Ｍｇなどがあるが、Ｆｅ
＋Ｃｒ≧９９．９８％であればよいので、これら不純物
元素の量を個々には規定しない。Impurity elements usually contained in conventional Fe-Cr alloys include C, N, O, P, S, Si and M.
n, Al, Mo, Ti, V, Nb, W, Zr, Ta,
B, Ni, Cu, Co, Ca, Mg, etc., but Fe
Since + Cr ≧ 99.98% is sufficient, the amounts of these impurity elements are not individually specified.
【００２５】このような超高純度のＦｅ−Ｃｒ合金を製
造するには、原料として高純度電解鉄と電解Ｃｒを所定
量用いることで達成される。いずれの原料も、主たる不
純物は酸素であり、この酸素を除去するために、１０-7
ｔｏｒｒよりも高い超高真空下で溶解、鋳造することに
より本発明の超高純度のＦｅ−Ｃｒ合金を製造すること
ができる。また、本発明合金は、熱延焼鈍板、冷延焼鈍
板で用いられても十分に効果が生じるとともに、冷延焼
鈍板においては表面仕上げが２Ｄ，２Ｂ，ＢＡ，ＨＬ，
研磨、鏡面などのいずれでもかまわない。The production of such an ultrahigh-purity Fe--Cr alloy is achieved by using a predetermined amount of high-purity electrolytic iron and electrolytic Cr as raw materials. The main impurity of all the raw materials is oxygen, and in order to remove this oxygen, 10 −7
The ultra-high purity Fe-Cr alloy of the present invention can be produced by melting and casting under ultra-high vacuum higher than torr. Further, the alloy of the present invention produces a sufficient effect even when used in a hot-rolled annealed sheet or a cold-rolled annealed sheet, and the surface finish of the cold-rolled annealed sheet is 2D, 2B, BA, HL,
It may be polished or mirror-finished.
【００２６】[0026]
【実施例】以下、実施例をもって本発明を具体的に説明
する。 （実施例）表１に示す化学組成を有する鋼を１０ｋｇ真
空溶解炉で溶製、鋳造し、熱間圧延により板厚４ｍｍの
熱延板とし、再結晶を目的とした熱延板焼鈍を施し、脱
スケール後冷間圧延により板厚０．８ｍｍの冷延板とし
て最終的に再結晶焼鈍し、冷延焼鈍板とした。EXAMPLES The present invention will be specifically described below with reference to examples. (Example) Steel having the chemical composition shown in Table 1 was melted and cast in a 10 kg vacuum melting furnace, hot-rolled into a hot-rolled sheet having a thickness of 4 mm, and annealed for the purpose of recrystallization. Finally, after descaling, cold rolling was performed by cold rolling to finally obtain a cold rolled sheet having a thickness of 0.8 mm, followed by recrystallization annealing to obtain a cold rolled annealed sheet.
【００２７】 [0027]
【００２８】このようにして得られた鋼板について以下
の試験を行った。 〔加工性の評価〕ＪＩＳ Ｚ−２２４１に準拠した引張
試験による伸びの測定と、５０％冷間圧延後、Ｃ方向に
１８０°密着曲げ試験を行った時の割れの状況を観察し
た。その結果を表２に示す。The following tests were conducted on the steel sheet thus obtained. [Evaluation of workability] The elongation was measured by a tensile test according to JIS Z-2241, and after 50% cold rolling, the state of cracking was observed when a 180 ° adhesion bending test was performed in the C direction. The results are shown in Table 2.
【００２９】 [0029]
【００３０】Ｆｅ＋Ｃｒ≧９９．９８％と超高純度化す
ることにより伸びが改善され、加工性も良好となること
がわかる。一方、Ｆｅ＋Ｃｒ≧９９．９８％としてもＣ
ｒが１２％を超えるとＣｒの固溶強化により伸びが低下
することもわかる。It is understood that the elongation is improved and the workability is improved by the ultra-high purification of Fe + Cr ≧ 99.98%. On the other hand, even if Fe + Cr ≧ 99.98%, C
It can also be seen that when r exceeds 12%, the elongation decreases due to solid solution strengthening of Cr.
【００３１】〔耐食性評価〕上記鋼板をエメリー＃５０
０研磨し、千葉海岸地区（海岸線より１０ｍ）で６ケ月
間の大気暴露試験およびＪＩＳ Ｚ−２３７１に準拠し
た塩水噴霧試験（ＳＳＴ）を１００時間行った。その結
果を表３に示す。[Evaluation of Corrosion Resistance] The above steel sheet was emery # 50.
After 0 polishing, an atmospheric exposure test for 6 months and a salt spray test (SST) according to JIS Z-2371 were carried out for 100 hours in the Chiba coast area (10 m from the coastline). The results are shown in Table 3.
【００３２】 [0032]
【００３３】Ｆｅ＋Ｃｒ≧９９．９８％の高純度とし、
かつＣｒを０．５％以上含有させることにより、耐食性
が著しく改善されることがわかる。Fe + Cr ≧ 99.98% of high purity,
Moreover, it is understood that the corrosion resistance is remarkably improved by including Cr in an amount of 0.5% or more.
【００３４】[0034]
【発明の効果】Ｆｅ＋Ｃｒ≧９９．９８重量％と超高純
度化したＦｅ−Ｃｒ合金は、非常に加工性が良好である
ばかりか、従来鋼の１８％Ｃｒ鋼と同等の耐食性をわず
か２％Ｃｒで得ることができ、著しく耐食性が良好とな
り、加工性および耐食性のいずれも優れた合金を安価に
提供できる可能性がある。EFFECT OF THE INVENTION Fe + Cr ≧ 99.98% by weight of ultra-high purity Fe—Cr alloy not only has very good workability, but also has a corrosion resistance equivalent to that of conventional 18% Cr steel of only 2%. Since it can be obtained with Cr, the corrosion resistance becomes extremely good, and there is a possibility that an alloy excellent in both workability and corrosion resistance can be provided at low cost.
【図１】 Ｆｅ，Ｃｒ以外の成分の総和と伸びの関係を
示すグラフである。FIG. 1 is a graph showing the relationship between the sum of components other than Fe and Cr and elongation.
【図２】 Ｃｒ含量と耐食性の関係を示すグラフであ
る。FIG. 2 is a graph showing the relationship between Cr content and corrosion resistance.
フロントページの続き (72)発明者 矢 沢 好 弘 千葉県千葉市中央区川崎町１番地 川崎製 鉄株式会社技術研究本部内 (72)発明者 大和田 哲 千葉県千葉市中央区川崎町１番地 川崎製 鉄株式会社技術研究本部内 (72)発明者 藤 澤 光 幸 千葉県千葉市中央区川崎町１番地 川崎製 鉄株式会社技術研究本部内Front page continuation (72) Inventor Yoshihiro Yazawa 1 Kawasaki-cho, Chuo-ku, Chiba, Chiba Prefecture Technical Research Division, Kawasaki Steel Co., Ltd. (72) Inventor Satoshi Owada 1 Kawasaki-cho, Chuo-ku, Chiba-shi Kawasaki (72) Inventor, Mitsuyuki Fujisawa, 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Co., Ltd.
Claims (1)
以上かつＣｒ含量が０．５〜１２重量％である加工性と
耐食性に優れたＦｅ−Ｃｒ合金。1. The total content of Fe and Cr is 99.98% by weight.
The Fe-Cr alloy having excellent workability and corrosion resistance as described above and having a Cr content of 0.5 to 12% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11101392A JP3519421B2 (en) | 1992-04-30 | 1992-04-30 | Fe-Cr alloy with excellent workability and corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11101392A JP3519421B2 (en) | 1992-04-30 | 1992-04-30 | Fe-Cr alloy with excellent workability and corrosion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05306435A true JPH05306435A (en) | 1993-11-19 |
| JP3519421B2 JP3519421B2 (en) | 2004-04-12 |
Family
ID=14550187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11101392A Expired - Fee Related JP3519421B2 (en) | 1992-04-30 | 1992-04-30 | Fe-Cr alloy with excellent workability and corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3519421B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5739047B1 (en) * | 2014-08-12 | 2015-06-24 | トワロン株式会社 | Biological repellent multi-layer resin-coated metal wire and fishing net composed thereof |
-
1992
- 1992-04-30 JP JP11101392A patent/JP3519421B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5739047B1 (en) * | 2014-08-12 | 2015-06-24 | トワロン株式会社 | Biological repellent multi-layer resin-coated metal wire and fishing net composed thereof |
| WO2016024448A1 (en) * | 2014-08-12 | 2016-02-18 | トワロン株式会社 | Organism-repellent multilayer resin-coated metal wire and fishing net comprising same |
| JP2016040092A (en) * | 2014-08-12 | 2016-03-24 | トワロン株式会社 | Organism repellent multilayer resin-coated metal wire and fishing net made thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3519421B2 (en) | 2004-04-12 |
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