JPS63206431A - Production of thin stainless steel strip for cutlery - Google Patents
Production of thin stainless steel strip for cutleryInfo
- Publication number
- JPS63206431A JPS63206431A JP3975287A JP3975287A JPS63206431A JP S63206431 A JPS63206431 A JP S63206431A JP 3975287 A JP3975287 A JP 3975287A JP 3975287 A JP3975287 A JP 3975287A JP S63206431 A JPS63206431 A JP S63206431A
- Authority
- JP
- Japan
- Prior art keywords
- less
- stainless steel
- cutlery
- ribbon
- cooling
- 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
- 239000010935 stainless steel Substances 0.000 title claims abstract description 28
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 21
- 230000009467 reduction Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 14
- 239000010959 steel Substances 0.000 abstract description 14
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 2
- 239000010962 carbon steel Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000010791 quenching Methods 0.000 description 10
- 230000000171 quenching effect Effects 0.000 description 10
- 150000001247 metal acetylides Chemical class 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910000734 martensite Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000007712 rapid solidification Methods 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 5
- 238000005496 tempering Methods 0.000 description 5
- 229910001566 austenite Inorganic materials 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000473391 Archosargus rhomboidalis Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- -1 Mn 3C-1M 70s Chemical class 0.000 description 1
- 241000221535 Pucciniales Species 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は刃物用ステンレス薄帯の製造法に関するもので
、さらに詳しくは、急速冷却凝固による刃物用ステンレ
ス薄帯の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a stainless steel ribbon for cutlery, and more particularly to a method for manufacturing a stainless steel ribbon for cutlery by rapid cooling solidification.
[従来技術]
一般に、カミソリの替え刃の材料としては、炭素鋼が使
用されている。しかし、この替え刃の欠点としては、錆
び易く、耐久性に劣るために従来から改善が求められて
いた。[Prior Art] Carbon steel is generally used as a material for razor blades. However, the disadvantages of this replacement blade are that it rusts easily and has poor durability, so improvements have long been sought.
このような要求に対して、ステンレス鋼を素材とする替
え刃が作られ、カミソリとしての効果を高めるために、
焼入れ直後のサブゼロ処理、テフロン樹脂コーティング
、クロムスパッタリング等の技術が開発された。In response to these demands, replacement blades made of stainless steel were created to increase the effectiveness of the razor.
Technologies such as sub-zero treatment immediately after quenching, Teflon resin coating, and chrome sputtering have been developed.
このように錆びない、肌当たりがソフトでシャープな切
れ味、耐久力等の理想的な条件を満たしたステンレス鋼
の替え刃が、消費者に受は入れられ、社会的にステンレ
ス替え刃に対する認識が高まってきている。In this way, stainless steel replacement blades that meet ideal conditions such as rust-free, soft to the touch, sharp cutting ability, and durability have been well-received by consumers, and social awareness of stainless steel replacement blades has increased. It's increasing.
しかしながら、このようなステンレス鋼替え刃も、次に
示すようなことから必ずしも満足できるものではなかっ
た。However, such stainless steel replacement blades were not always satisfactory due to the following reasons.
1)カミソリの刃として、最も重要な要求特性は刃先の
焼入れ硬さであるが、焼入れ熱処理時の加熱温度と焼入
れ硬さの関係においては、最適条件で硬さピークが存在
する。従って、高い焼入れ硬さを得るためにはこの最適
条件を維持することが重要であるが、この最適温度範囲
が狭く、実際の製造ラインにおける温度管理は困難を極
め、屡々硬度不足をもたらす。1) The most important characteristic required for a razor blade is the quenching hardness of the cutting edge, but in the relationship between the heating temperature and quenching hardness during quenching heat treatment, a hardness peak exists under optimal conditions. Therefore, it is important to maintain this optimum condition in order to obtain high quenched hardness, but this optimum temperature range is narrow and temperature control in actual production lines is extremely difficult, often resulting in insufficient hardness.
2)カミソリ刃としての硬さく焼入れ→焼戻し)を得る
ため、このステンレス鋼は0,6〜0.8wt%のCを
含有するが、このような高Cのために焼入れ処理前の焼
きなまし状態において、炭化物M、、C,、M7C3が
存在する。この微細なMtsCa等は焼入れ時の溶体化
処理過程で速やかに分解固溶するので、高い焼入れ硬さ
が得られるが、前工程までの製造条件や溶体化処理条件
によっては粗大なM t 300等が未凝固で存在し、
刃こぼれの原因となる。2) This stainless steel contains 0.6 to 0.8 wt% of C in order to obtain the hardness required for a razor blade (quenched → tempered). , carbides M, , C, , M7C3 are present. This fine MtsCa etc. quickly decomposes into a solid solution during the solution treatment process during quenching, resulting in high hardening hardness, but depending on the manufacturing conditions up to the previous process and solution treatment conditions, coarse MtsCa etc. exists in unsolidified form,
This may cause the blade to spill.
未固溶の炭化物を無くし、必要な焼入れ硬さを得るため
には、C含有量を極めて狭い最適範囲に制御しなければ
ならない。In order to eliminate undissolved carbides and obtain the necessary hardening hardness, the C content must be controlled within an extremely narrow optimum range.
3)このようなカミソリ刃としての要求硬度を満足する
ため、このような鋼は元来硬質であり、カミソリ刃とし
て必要な薄さに加工するための冷間圧延→焼鈍を多数回
繰り返さなければならず、作業が繁雑となると共に大幅
なコストアップの要因となる。3) In order to satisfy the required hardness for razor blades, such steel is inherently hard and must be cold rolled and annealed many times to process it into the thinness required for razor blades. This makes the work complicated and causes a significant increase in costs.
[発明が解決しようとする問題点]
本発明は上記に説明したような、従来におけるカミソリ
刃の種々の問題点に鑑み、本発明者が鋭意研究を重ねた
結果、錆びにくく、優れた耐久性を有するカミソリ刃と
して好適な刃物用ステンレス薄帯の製造法を開発したの
である。[Problems to be Solved by the Invention] In view of the various problems of conventional razor blades as explained above, the present inventor has conducted extensive research, and as a result, the present invention has been developed to provide a razor blade that is resistant to rust and has excellent durability. We have developed a method for manufacturing stainless steel ribbon suitable for razor blades.
[問題点を解決するための手段]
本発明な係る刃物用ステンレス薄帯の製造法は、(1)
CG、5〜OJwt%、Si2.0wt%以下、Mn
1.0wt%以下、Cr L0.O〜15.ht%ナ
ーA亡1 πそ面りえ衿しアCブマ九プ什り講\(−
ナース溶鋼をノズルより冷却体の移動冷却面上に噴出さ
せ、103℃/sec以上の冷却速度で冷却・凝固させ
た300μm以下の薄帯をそのまま、或いは、圧下率3
0%以下の圧延を行なうことを特徴とする刃物用ステン
レス薄帯の製造法を第1の発明とし、
(2) G 0.5〜G、8wt%、Si2.0wt%
以下、Mn 1.0wt%以下、Cr 10.0〜15
.0wt%、Mo 1.0wt%以下
を含有し、残部Feおよび不可避不純物からなる溶鋼を
ノズルより冷却体の移動冷却面上に噴出させ、103℃
/sec以上の冷却速度で冷却・凝固させた300μm
以下の薄帯をそのまま、或いは、圧下率30%以下の圧
延を行なうことを特徴とする刃物用ステンレス薄帯の製
造法を第2の発明とし、
(3) C0.5〜0.8wt%、Si2.0wt%以
下、Mn 1.0wt%以下、Cr 10.0〜15.
0wt%を含有し、残部Feおよび不可避不純物からな
る溶鋼をノズルより冷却体の移動冷却面上に噴出させ、
103℃/sec以上の冷却速度で冷却・凝固させた3
00μm以下の薄帯をそのまま、或いは、圧下率30%
以下の圧延を行なった後、−50℃以下の温度にサブゼ
ロ処理を行なうことを特徴とする刃物用ステンレス薄帯
の製造法を第3の発明とし、
(4) C0.5〜0.8wt%、Si2.0wt%以
下、Mn 1.0wt%以下、Cr 10.0〜15.
0wt%、Mo 1.0wt%以下
を含有し、残部Feおよび不可避不純物からなる溶鋼を
ノズルより冷却体の移動冷却面上に噴出させ、103℃
/sec以上の冷却速度で冷却・凝固させた300μm
以下の薄帯をそのまま、或いは、圧下率30%以下の圧
延を行なった後、−50℃以下の温度にサブゼロ処理を
行なうことを特徴とする刃物用ステンレス薄帯の製造法
を第4の発明とする4つの発明よりなるものである。[Means for solving the problems] The method for manufacturing the stainless steel ribbon for cutlery according to the present invention includes (1)
CG, 5~OJwt%, Si2.0wt% or less, Mn
1.0wt% or less, Cr L0. O~15. ht%ner A death 1 π Somen Rie collar and A C buma 9p round lecture \(-
Nurse molten steel is ejected from a nozzle onto the moving cooling surface of the cooling body, and the thin ribbon of 300 μm or less is cooled and solidified at a cooling rate of 103 ° C / sec or more, or it can be used as it is or at a rolling reduction rate of 3.
The first invention is a method for manufacturing a stainless steel ribbon for cutlery, which is characterized by performing rolling of 0% or less, (2) G 0.5 to G, 8 wt%, Si 2.0 wt%
Below, Mn 1.0wt% or less, Cr 10.0-15
.. Molten steel containing 0 wt% or less of Mo and 1.0 wt% or less of Fe and unavoidable impurities is spouted from a nozzle onto the moving cooling surface of the cooling body and heated to 103°C.
300μm cooled and solidified at a cooling rate of /sec or more
The second invention is a method for manufacturing a stainless steel ribbon for cutlery, characterized in that the following ribbon is rolled as it is or rolled at a reduction rate of 30% or less: (3) C0.5 to 0.8 wt%; Si 2.0wt% or less, Mn 1.0wt% or less, Cr 10.0-15.
molten steel containing 0 wt% and the remainder consisting of Fe and unavoidable impurities is ejected from a nozzle onto the moving cooling surface of the cooling body,
Cooled and solidified at a cooling rate of 103°C/sec or higher 3
00μm or less ribbon as is or rolling reduction rate 30%
A third invention provides a method for manufacturing a stainless steel ribbon for cutlery, which is characterized in that after the following rolling is performed, sub-zero treatment is performed at a temperature of -50°C or lower, (4) C0.5 to 0.8 wt% , Si 2.0wt% or less, Mn 1.0wt% or less, Cr 10.0-15.
Molten steel containing 0 wt% or less of Mo and 1.0 wt% or less of Fe and unavoidable impurities is spouted from a nozzle onto the moving cooling surface of the cooling body and heated to 103°C.
300μm cooled and solidified at a cooling rate of /sec or more
A fourth invention provides a method for manufacturing a stainless steel ribbon for cutlery, characterized in that the following ribbon is rolled as it is or after being rolled at a reduction rate of 30% or less and then subjected to sub-zero treatment at a temperature of -50°C or lower. This invention consists of four inventions.
本発明に係る刃物用ステンレス薄帯の製造法について、
以下詳細に説明する。Regarding the manufacturing method of the stainless steel ribbon for cutlery according to the present invention,
This will be explained in detail below.
先ず、本発明に係る刃物用ステンレス薄帯の製造法に使
用する鋼の含有成分および含有割合について説明する。First, the components and content ratios of the steel used in the method for manufacturing the stainless steel ribbon for cutlery according to the present invention will be explained.
Cはγ相中に固溶させるC含有量が多い程、マルテンサ
イトの硬さが上昇し、従来法では焼入れのため変態点以
上の高温に昇温しで、炭化物を100%γ相中に分解固
溶させなければならないため、C含有量の上限は0.6
8wt%、下限は0.6wt%と極めて狭い範囲内に制
御する必要があるが、本発明に係る刃物用ステンレス薄
帯の製造法では炭化物の析出がないので、C含有量は0
.8wt%までの含有は許容され、また、下限はCr含
有量にもよるが必要な硬度を得るために0.5wt%と
する。The higher the C content in solid solution in the γ phase, the higher the hardness of martensite.In the conventional method, the temperature is raised to a high temperature above the transformation point for quenching, and 100% of the carbide is dissolved in the γ phase. Since it must be decomposed into solid solution, the upper limit of C content is 0.6
Although it is necessary to control the C content within an extremely narrow range of 8 wt% and a lower limit of 0.6 wt%, since there is no precipitation of carbides in the method for producing stainless steel ribbon for cutlery according to the present invention, the C content is 0.
.. Content up to 8 wt% is allowed, and the lower limit is 0.5 wt% to obtain the necessary hardness, although it depends on the Cr content.
Siは靭性を劣化させるため少ない方が望ましいが、S
iの含有によって最終樹脂コーティング処理時の耐焼戻
し軟化抵抗が高くなる。よって、Si含有量は2.0w
t%以下とする。Since Si deteriorates toughness, it is preferable to reduce the amount of Si.
The inclusion of i increases the resistance to tempering and softening during the final resin coating treatment. Therefore, the Si content is 2.0w
t% or less.
Mnは脱酸のために含有されるので、JIS規格通りの
り、0wt%以下とする。Since Mn is contained for deoxidation, the content should be 0 wt % or less in accordance with JIS standards.
Crは徐冷の焼入れでもマルテンサイト化して硬化し、
さらに、耐蝕性を付与するために通常は12〜14wt
%含有させるのであるが、本発明に係る刃物用ステンレ
ス薄帯の製造法においては急冷凝固時にオーステナイト
相が得られ、最終熱処理またはサブゼロ処理によってマ
ルテンサイト変態させることから規制されるもので、C
含有量によって決まるが、10〜15wt%の範囲で上
記の効果が得られ、また、この範囲内において必要な耐
蝕性が得られるのである。Cr hardens by turning into martensite even during slow cooling quenching,
Furthermore, in order to provide corrosion resistance, it is usually 12 to 14 wt.
However, in the manufacturing method of the stainless steel ribbon for cutlery according to the present invention, an austenite phase is obtained during rapid solidification, and martensitic transformation is caused by the final heat treatment or sub-zero treatment, so it is regulated.
Although it depends on the content, the above effects can be obtained within the range of 10 to 15 wt%, and the necessary corrosion resistance can be obtained within this range.
MOはCrの効果を補うために含有させるもので、Cr
含有量が多いとC含有量が高くても硬さが上昇しないた
めと、および、巨大炭化物の発生防止のため、Cr含有
量を低減する必要があるときにMOC含有量1.0wt
%以下含有させるのがよい。MO is included to supplement the effect of Cr, and Cr
MOC content of 1.0 wt is used when it is necessary to reduce the Cr content because the hardness does not increase even if the C content is high and to prevent the generation of giant carbides.
% or less.
これ以上の含有では靭性が劣化する。If the content is more than this, the toughness will deteriorate.
次に、本発明に係る刃物用ステンレス薄帯の製造法にお
ける急冷凝固、圧下率、サブゼロ処理について説明する
。Next, the rapid solidification, rolling reduction, and sub-zero treatment in the manufacturing method of the stainless steel ribbon for cutlery according to the present invention will be explained.
急冷凝固は上記した含有成分と含有割合の鋼の薄帯とす
るのに適した溶鋼を収容する容器から、容器に取り付け
られている適宜形状のノズルにより、移動冷却体の移動
冷却面上に噴出させて急冷・凝固させて、−挙に薄帯を
製造できればどのような方法でも良く、例えば、移動冷
却体として単一ロール、双ロール、ドラム等が使用でき
る。Rapid solidification is performed by ejecting molten steel from a container containing molten steel suitable for forming a steel ribbon with the above-mentioned components and content ratio onto the moving cooling surface of a moving cooling body using an appropriately shaped nozzle attached to the container. Any method may be used as long as a ribbon can be produced by rapidly cooling and solidifying the thin film.For example, a single roll, twin rolls, drum, etc. can be used as the moving cooling body.
そして、本発明に係る刃物用ステンレス薄帯の製造法に
おいては、使用する鯛のC含有量が高いので、冷却速度
は103℃/sec以上とすることがCの固溶のために
は必要であり、この冷却速度より遅くなるとMzsCs
、M?Cs等の炭化物が析出してくるのである。In the method for manufacturing stainless steel ribbon for cutlery according to the present invention, since the C content of the sea bream used is high, it is necessary to set the cooling rate to 103°C/sec or more in order to dissolve C into solid solution. Yes, if the cooling rate is slower than this, MzsCs
,M? Carbides such as Cs are precipitated.
このような急冷凝固によって、従来のように多数の冷間
圧延→焼鈍工程を行なうことなく、50〜300μmの
厚さの薄帯が瞬時に製造できるばかりでなく、凝固冷却
速度が著しく速いため、従来のインゴット・メーキング
の場合に冷却過程で生成し、製品の靭性劣化、刃こぼれ
の原因となるMn 3C−1M 70s等の巨大炭化物
が生成されない均質な薄帯が製造することができる。そ
して、急冷凝固によりCを多量に固溶したオーステナイ
ト組織の薄帯が得られるため、従来のような最適温度±
10℃というような極めて厳格な熱処理時の温度制御を
必要とせず、広い温度範囲の1040〜1120℃の温
度での熱処理によって、さらには、このような高温にお
ける加熱−水焼入れによらず得られた薄帯をそのまま一
50℃以下の温度でサブゼロ処理するのみで、Hv78
0〜810、および引張強さ150 kgf/mm”以
上のカミソリ刃として良好な硬さと靭性が得られ、樹脂
コーティング処理のための焼戻し後も充分な硬さを有し
、また、炭化物が存在しないのでC含有量の増加が可能
となり、最終熱処理後の硬さも高くなるのである。そし
て、サブゼロ処理のみで高い硬度が得られるのは、急冷
凝固状態で高温加熱と同程度の多量のオーステナイト相
が存在するためである。By such rapid solidification, not only can ribbons with a thickness of 50 to 300 μm be produced instantly without the need for multiple cold rolling and annealing steps as in the conventional method, but also the solidification cooling rate is extremely fast. A homogeneous ribbon can be produced without the formation of giant carbides such as Mn 3C-1M 70s, which are generated during the cooling process in conventional ingot making and cause deterioration of product toughness and chipping. Then, by rapid solidification, a ribbon of austenitic structure containing a large amount of solid solution of C is obtained, so the optimum temperature ±
There is no need for extremely strict temperature control during heat treatment such as 10°C, and it is possible to obtain heat treatment at a wide temperature range of 1040 to 1120°C, and even without using water quenching at such high temperatures. By simply subjecting the thin ribbon to sub-zero treatment at a temperature below -50℃, Hv78
0 to 810 and tensile strength of 150 kgf/mm” or more, it has good hardness and toughness as a razor blade, has sufficient hardness even after tempering for resin coating, and is free of carbides. Therefore, it is possible to increase the C content and increase the hardness after the final heat treatment.The reason why high hardness can be obtained only with sub-zero treatment is that a large amount of austenite phase is produced in the rapidly solidified state, which is equivalent to that obtained by high temperature heating. Because it exists.
圧下率は製造された急冷凝固薄帯に軽い圧下を加えると
、その加工誘起変態(オーステナイト→マルテンサイト
〕により、サブゼロ処理時の変態を促進して高い硬度を
得ることができる。従って、圧下率は30%以下とする
。The reduction rate can be determined by applying a light reduction to the produced rapidly solidified ribbon, and its deformation-induced transformation (austenite → martensite) can promote the transformation during sub-zero treatment and obtain high hardness. shall be 30% or less.
サブゼロ処理温度が一50℃以上ではオーステナイト相
は安定であり、マルテンサイトに変態しないため必要な
硬さが得られないので、サブゼロ処理温度は上限を一5
0℃とする。そして、サブゼロ処理温度が一50℃以下
であれば、この効果が得られるが、下限はどのような温
度でもよいが、冷却媒体の効率と一150℃まででその
効果は飽和してしまう。If the sub-zero treatment temperature is 150℃ or higher, the austenite phase is stable and does not transform into martensite, so the necessary hardness cannot be obtained.
The temperature shall be 0°C. This effect can be obtained if the sub-zero treatment temperature is 150° C. or lower, but the lower limit may be any temperature, but the effect is saturated at the cooling medium efficiency and -150° C.
また、サブゼロ処理したものは、樹脂コーティング処理
のための焼戻し後も充分な硬さを有し、かつ、炭化物が
存在しないのでC含有量を増加させることができ、サブ
ゼロ処理後の硬さも高くなる。In addition, the sub-zero treated material has sufficient hardness even after tempering for resin coating treatment, and since there are no carbides, the C content can be increased, and the hardness after the sub-zero treatment also increases. .
なお、サブゼロ処理の前に或いは急冷凝固された薄帯か
、圧延後の薄帯に対し、替え刃等刃物の原型に薄帯を打
ち抜くパンチング等の成形加工を行なうことも可能であ
る。Note that it is also possible to perform a forming process such as punching, which punches out the thin strip into a prototype of a cutter such as a replacement blade, on the thin strip that has been rapidly solidified or rapidly solidified before the sub-zero treatment, or after rolling.
[実 施 例コ
本発明に係る刃物用ステンレス薄帯の製造法の実施例を
説明する。[Example] An example of the method for manufacturing a stainless steel ribbon for cutlery according to the present invention will be described.
実施例1
第1表に示す含有成分および含有割合の溶鋼を、0 、
4 mm厚X25mm幅の直方形スリットを有するノズ
ルより1100Crpで回転する300mmの双ロール
の外周面のロール噛込み部付近に噴出させて厚さ120
μmの薄帯を製造した。Example 1 Molten steel having the components and content ratios shown in Table 1 was
A nozzle with a rectangular slit of 4 mm thick and 25 mm wide sprays it near the roll engagement part on the outer circumferential surface of a 300 mm twin roll rotating at 1100 Crp to form a 120 mm thick sheet.
A μm thin strip was produced.
この薄帯の表面の平均粗度Reは略20μmと非常に平
滑で、かつ、表面の酸化度は軽微であってかなりの金属
光沢を呈していた。The average roughness Re of the surface of this ribbon was approximately 20 μm, which was very smooth, and the degree of oxidation on the surface was slight, and it had a considerable metallic luster.
このように製造された薄帯に0〜20%の軽圧下を加え
た後、第1表に示す条件で溶体化処理後、水焼入れを行
なった。After applying a light reduction of 0 to 20% to the ribbon thus produced, it was subjected to solution treatment and water quenching under the conditions shown in Table 1.
・焼戻し温度
テフロンコーティング焼成をシミュレートして380℃
の温度とした。・Tempering temperature: 380℃ to simulate Teflon coating firing
The temperature was set to .
・刃こぼれ指数
■・・良、2・・やや良、3・・普通、4・・やや悪、
5・・悪。(4および5は脆過ぎて使用不可能。)
実施例2
第2表に示す含有成分および含有割合の溶鋼を、0 、
4 mm厚X25+nm幅の直方形スリットを有するノ
ズルより1100Crpで回転する300mmの双ロー
ルの外周面のロール噛込み部付近に噴出させて厚さ12
0μmの薄帯を製造した。・Blade spillage index: Good, 2: Slightly good, 3: Fair, 4: Slightly bad.
5. Evil. (Nos. 4 and 5 are too brittle to be used.) Example 2 Molten steel having the components and content ratios shown in Table 2 was mixed with 0,
A nozzle with a rectangular slit of 4 mm thickness x 25 + nm width sprays it near the roll engagement part on the outer circumferential surface of a 300 mm twin roll rotating at 1100 Crp, resulting in a thickness of 12 mm.
A thin ribbon of 0 μm was produced.
この薄帯の表面の平均粗度Reは略20ttIIlと非
常に平滑で、かつ、表面の酸化度は軽微であってかなり
の金属光沢を呈していた。The average roughness Re of the surface of this ribbon was approximately 20 ttIIl, which was very smooth, and the degree of oxidation on the surface was slight, and it had a considerable metallic luster.
このように製造された薄帯に0〜20%の軽圧下を加え
た後、第2表に示す条件でサブゼロ処理を行なった。一
部は比較のため1080℃溶体化処理後、水焼入れを行
なった。After applying a light reduction of 0 to 20% to the ribbon thus produced, subzero treatment was performed under the conditions shown in Table 2. For comparison, some of the samples were subjected to water quenching after solution treatment at 1080°C.
・焼戻し温度
テフロンコーティング焼成をシミュレートして380℃
の温度とした。・Tempering temperature: 380℃ to simulate Teflon coating firing
The temperature was set to .
・刃こぼれ指数
1・・良、2・・やや良、3・・普通、4・・やや悪、
S・・悪。(4および5は脆過ぎて使[発明の効果]
以上説明したように、本発明に係る刃物用ステンレス薄
帯の製造法は上記の構成であるから、カミソリ刃として
錆びにくく、また、耐久性に優れているという効果を奏
するものである。・Blade spillage index 1: Good, 2: Fairly good, 3: Fair, 4: Fairly bad.
S...evil. (Nos. 4 and 5 are used because they are too brittle. [Effects of the Invention] As explained above, since the method for manufacturing the stainless steel ribbon for cutlery according to the present invention has the above structure, it is resistant to rust as a razor blade, and has good durability. It has the effect of being excellent in terms of performance.
Claims (4)
、Mn1.0wt%以下、Cr10.0〜15.0wt
%を含有し、残部Feおよび不可避不純物からなる溶鋼
をノズルより冷却体の移動冷却面上に噴出させ、10^
3℃/sec以上の冷却速度で冷却・凝固させた300
μm以下の薄帯をそのまま、或いは、圧下率30%以下
の圧延を行なうことを特徴とする刃物用ステンレス薄帯
の製造法。(1) C0.5-0.8wt%, Si2.0wt% or less, Mn1.0wt% or less, Cr10.0-15.0wt
%, with the balance consisting of Fe and unavoidable impurities, is spouted from a nozzle onto the moving cooling surface of the cooling body.
300 cooled and solidified at a cooling rate of 3°C/sec or more
A method for producing a stainless steel ribbon for cutlery, which comprises rolling the ribbon as it is or at a rolling reduction of 30% or less.
、Mn1.0wt%以下、Cr10.0〜15.0wt
%、Mo1.0wt%以下 を含有し、残部Feおよび不可避不純物からなる溶鋼を
ノズルより冷却体の移動冷却面上に噴出させ、10^3
℃/sec以上の冷却速度で冷却・凝固させた300μ
m以下の薄帯をそのまま、或いは、圧下率30%以下の
圧延を行なうことを特徴とする刃物用ステンレス薄帯の
製造法。(2) C0.5-0.8wt%, Si2.0wt% or less, Mn1.0wt% or less, Cr10.0-15.0wt
%, Mo 1.0wt% or less, and the balance consists of Fe and unavoidable impurities, is spouted from a nozzle onto the moving cooling surface of the cooling body, and 10^3
300μ cooled and solidified at a cooling rate of ℃/sec or higher
A method for manufacturing a stainless steel ribbon for cutlery, which comprises rolling the ribbon as it is or at a reduction rate of 30% or less.
、Mn1.0wt%以下、Cr10.0〜15.0wt
%を含有し、残部Feおよび不可避不純物からなる溶鋼
をノズルより冷却体の移動冷却面上に噴出させ、10^
3℃/sec以上の冷却速度で冷却・凝固させた300
μm以下の薄帯をそのまま、或いは、圧下率30%以下
の圧延を行なった後、−50℃以下の温度にサブゼロ処
理を行なうことを特徴とする刃物用ステンレス薄帯の製
造法。(3) C0.5-0.8wt%, Si2.0wt% or less, Mn1.0wt% or less, Cr10.0-15.0wt
%, with the balance consisting of Fe and unavoidable impurities, is spouted from a nozzle onto the moving cooling surface of the cooling body.
300 cooled and solidified at a cooling rate of 3°C/sec or more
A method for manufacturing a stainless steel ribbon for cutlery, characterized in that the ribbon with a diameter of μm or less is subjected to sub-zero treatment at a temperature of -50° C. or lower after being rolled as it is or after being rolled at a reduction rate of 30% or lower.
、Mn1.0wt%以下、Cr10.0〜15.0wt
%、Mo1.0wt%以下 を含有し、残部Feおよび不可避不純物からなる溶鋼を
ノズルより冷却体の移動冷却面上に噴出させ、10^3
℃/sec以上の冷却速度で冷却・凝固させた300μ
m以下の薄帯をそのまま、或いは、圧下率30%以下の
圧延を行なった後、−50℃以下の温度にサブゼロ処理
を行なうことを特徴とする刃物用ステンレス薄帯の製造
法。(4) C0.5-0.8wt%, Si2.0wt% or less, Mn1.0wt% or less, Cr10.0-15.0wt
%, Mo 1.0wt% or less, and the balance consists of Fe and unavoidable impurities, is spouted from a nozzle onto the moving cooling surface of the cooling body, and 10^3
300μ cooled and solidified at a cooling rate of ℃/sec or higher
A method for manufacturing a stainless steel ribbon for cutlery, characterized in that the ribbon is subjected to sub-zero treatment at a temperature of -50°C or lower, either as it is or after being rolled at a reduction rate of 30% or lower.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3975287A JPS63206431A (en) | 1987-02-23 | 1987-02-23 | Production of thin stainless steel strip for cutlery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3975287A JPS63206431A (en) | 1987-02-23 | 1987-02-23 | Production of thin stainless steel strip for cutlery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63206431A true JPS63206431A (en) | 1988-08-25 |
Family
ID=12561688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3975287A Pending JPS63206431A (en) | 1987-02-23 | 1987-02-23 | Production of thin stainless steel strip for cutlery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63206431A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05117805A (en) * | 1990-11-10 | 1993-05-14 | Wilkinson Sword Gmbh | Steel for razor blade with high corrosion resistance, razor blade and manufacture of the razor blade |
JP2013514891A (en) * | 2009-12-21 | 2013-05-02 | ポスコ | High carbon martensitic stainless steel and method for producing the same |
JP2013514890A (en) * | 2009-12-21 | 2013-05-02 | ポスコ | Martensitic stainless steel and method for producing the same |
JP2019137893A (en) * | 2018-02-09 | 2019-08-22 | 日鉄日新製鋼株式会社 | Stainless clad steel and method for producing the same, and cutter |
-
1987
- 1987-02-23 JP JP3975287A patent/JPS63206431A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05117805A (en) * | 1990-11-10 | 1993-05-14 | Wilkinson Sword Gmbh | Steel for razor blade with high corrosion resistance, razor blade and manufacture of the razor blade |
JP2013514891A (en) * | 2009-12-21 | 2013-05-02 | ポスコ | High carbon martensitic stainless steel and method for producing the same |
JP2013514890A (en) * | 2009-12-21 | 2013-05-02 | ポスコ | Martensitic stainless steel and method for producing the same |
JP2019137893A (en) * | 2018-02-09 | 2019-08-22 | 日鉄日新製鋼株式会社 | Stainless clad steel and method for producing the same, and cutter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102665964B (en) | High-carbon martensitic stainless steel and manufacture method thereof | |
JP2811511B2 (en) | Razor blade steel with high corrosion resistance, razor blades and method of manufacturing these razor blades | |
CN100457952C (en) | Casting high speed steel cutter and preparation method thereof | |
CN103890213B (en) | There is rolled steel and the manufacture method thereof of precipitation-hardening after the hot forming in the tool of very high strength and ductility and/or quenching | |
CN102666902B (en) | Martensitic stainless steel produced by a twin roll strip casting process and method for manufacturing same | |
CN106834886B (en) | Method based on ESP bar strip continuous casting and rolling flow path production thin gauge RE65Mn steel | |
CN101906587A (en) | Low carbon martensitic stainless steel and manufacture method thereof | |
CN103146992A (en) | High-strength hot-dip galvanized steel sheet with excellent processability and process for producing the same | |
CN109252104A (en) | High-speed steel and production method thereof | |
CN100451158C (en) | Die steel | |
JP3354163B2 (en) | Stainless steel for razor and method for producing the same | |
CN101649412A (en) | Hadifield steel with excellent mechanical property and manufacturing method thereof | |
KR19980087462A (en) | Method for manufacturing thin strip of ferritic stainless steel and thin strip obtained by the above method | |
CN108411086B (en) | A kind of production technology of low-cost and high-performance medium carbon steel | |
JPH0250189B2 (en) | ||
JPS6264412A (en) | Forged cold rolling roll | |
JP2004501276A (en) | Thermal spray formed nitrogen-added steel, method for producing the steel, and composite material produced from the steel | |
JP2007107097A (en) | Low-density alloy material | |
JPS63206431A (en) | Production of thin stainless steel strip for cutlery | |
JP5032727B2 (en) | Steel materials, their use and production | |
CN108300945A (en) | A kind of martensitic stain less steel and its manufacturing method of manufacture scalpel blade | |
JPH02166228A (en) | Manufacture of high carbon containing stainless steel having uniformly fine carbide structure | |
CN108103402B (en) | Stainless steel for rail transit vehicle and preparation method and application thereof | |
JPH0665639A (en) | Production of high carbon stainless steel strip having uniform fine carbite structure and excellent impact toughness | |
JPH05209252A (en) | Manufacture of high carbon-containing stainless steel having uniformly fine carbide structure |