JPS6393828A - Manufacture of scale-free austenitic stainless steel wire and bar - Google Patents
Manufacture of scale-free austenitic stainless steel wire and barInfo
- Publication number
- JPS6393828A JPS6393828A JP23635986A JP23635986A JPS6393828A JP S6393828 A JPS6393828 A JP S6393828A JP 23635986 A JP23635986 A JP 23635986A JP 23635986 A JP23635986 A JP 23635986A JP S6393828 A JPS6393828 A JP S6393828A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- cooling
- stainless steel
- austenitic stainless
- mixed
- 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
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000007788 liquid Substances 0.000 claims description 8
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 34
- 238000001816 cooling Methods 0.000 abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000003082 abrasive agent Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000005554 pickling Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、オーステナイト系ステンレス鋼線材・棒鋼の
製造方法、特に冷間加工前の溶体化処理と脱スケール処
理とを同時に行う効率的な製造方法に関するものである
。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for manufacturing austenitic stainless steel wire rods and steel bars, particularly an efficient manufacturing method that simultaneously performs solution treatment and descaling treatment before cold working. It is about the method.
〈従来の技術〉
オーステナイト系ステンレス鋼線材・棒鋼は５ＵＳ３０
４で代表されるように、冷間鍛造・伸線・引抜き・切削
などによりボルト、ナツト、ねじなど小部品に加工され
広範に使用されている０通常、これらの加工に先立って
加工性向上の目的で溶体化処理と熱間圧延時及び溶体化
処理時に形成された酸化スケールを除去し加工工具との
潤滑性を向上させるため、脱スケール処理が施される。<Conventional technology> Austenitic stainless steel wire rod/bar is 5US30
As represented by 4, bolts, nuts, screws, and other small parts are processed by cold forging, wire drawing, drawing, cutting, etc. and are widely used. 0 Usually, prior to these processes, Descaling treatment is performed to remove oxide scale formed during hot rolling and solution treatment to improve lubricity with processing tools.
元来、これらの処理は、別工程で行われており輸送コス
ト増や生産性゛の低下などの問題点があった。Originally, these treatments were performed in separate processes, which led to problems such as increased transportation costs and decreased productivity.
これらのうち、溶体化処理は、オフラインでは１０００
〜１１５０℃の高温において棒鋼では、ローラ・ハース
型連続炉で数分間、線材コイルでは、ローラ・ハースま
たはロータリ・ハース型連続炉で１〜２時間保持後、水
冷することにより行われている。Of these, solution treatment requires 1000 offline treatments.
At a high temperature of ~1150°C, steel bars are heated in a roller hearth type continuous furnace for several minutes, while wire rod coils are heated in a roller hearth or rotary hearth type continuous furnace for 1 to 2 hours, followed by water cooling.
オンラインでは熱間圧延時の保有熱を利用することによ
り溶体化処理を行う装置及び方法が特開昭５０−１０２
１７、特公昭５５−５１０１３、特公昭５９−２２７７
３等で開示されている。On-line, an apparatus and method for performing solution treatment by utilizing the heat retained during hot rolling was disclosed in Japanese Patent Application Laid-Open No. 50-102.
17, Special Publication No. 55-51013, Special Publication No. 59-2277
It is disclosed in 3rd prize.
一方、脱スケール処理は線材、棒鋼の場合その形態の制
約から酸洗により行われることが多い。On the other hand, in the case of wire rods and steel bars, descaling treatment is often carried out by pickling due to restrictions on their shape.
酸洗には硫酸、硝酸、ぶつ酸、塩酸などの単独または混
合酸が用いられる。スケールがち密で酸洗のみで完全な
スケール除去が困難な場合には溶融塩に浸漬するなど前
処理が行われる。酸洗後残存したスケールやスマフトは
水にて洗浄される。For pickling, single or mixed acids such as sulfuric acid, nitric acid, butic acid, and hydrochloric acid are used. If the scale is so dense that it is difficult to completely remove it by pickling alone, pretreatment such as immersion in molten salt is performed. The scale and smuft remaining after pickling are washed with water.
〈発明が解決しようとする問題点〉
従来、溶体化処理と脱スケール処理とは完全に独立した
工程であり、輸送コストが膨大となるとともに生産性が
両工程・の低い方に支配されるという欠点がある。<Problems to be solved by the invention> Conventionally, solution treatment and descaling treatment were completely independent processes, resulting in huge transportation costs and productivity being dominated by the lower of the two processes. There are drawbacks.
また、脱スケール処理の酸洗では硝酸、ぶつ酸を用いる
と有毒なガスが発生するため、十分な排ガス処理設備を
必要とするとともに、廃酸の処理について、も環境保全
の上から高価な設備と多額の処理コストを必要とする。In addition, the use of nitric acid or butoxylic acid in pickling for descaling treatment generates toxic gases, which requires sufficient exhaust gas treatment equipment, and waste acid treatment also requires expensive equipment from the standpoint of environmental protection. and requires a large amount of processing cost.
さらに、酸洗では結晶粒界を優先的に腐食されるためそ
の後の表面性状を害するとともに、水素脆性を誘引する
など品質上の問題も多い。Furthermore, pickling preferentially corrodes grain boundaries, which impairs the subsequent surface quality and also causes many quality problems such as inducing hydrogen embrittlement.
そこで酸洗の問題点を解消すべく機械的処理であるプラ
スト、クリーニング法の適用が一部でなされているが線
材、棒鋼の形態上、脱スケールが困難な場合も多い、完
全な脱スケールを行うためには、ブラスト粒を線材・棒
鋼の表面に均一に当てる必要があり、このためには線材
の場合巻直し等の設備が必要となるが、それでも十分な
効果が挙ってないのが実状である。Therefore, in order to solve the problem of pickling, mechanical treatment such as plasting and cleaning methods have been applied in some cases, but due to the form of wire rods and steel bars, descaling is often difficult, and complete descaling is not possible. In order to do this, it is necessary to uniformly apply the blast grains to the surface of the wire rod/steel bar, and for this purpose, equipment such as rewinding is required for wire rods, but the reality is that even then, sufficient effects are not achieved. It is.
く問題点を解決するための手段〉
本発明者は、溶体化処理、脱スケール処理について鋭意
研究を重ねた結果、溶体化処理の急冷段階でブラスト、
クリーニング（例えば液体ホーニング）を適用すると脱
スケール効果が飛躍的に向上するという知見をえ、この
知見にもとづいてこの発明をなすに至った。Means for Solving the Problems〉 As a result of extensive research into solution treatment and descaling, the present inventor discovered that blasting,
We have found that the descaling effect can be dramatically improved by applying cleaning (for example, liquid honing), and based on this knowledge, we have made this invention.
この発明は、リング状ないし直線状のオーステナイト系
ステンレス鋼線材・棒鋼を溶体化処理するに際し、その
急冷段階において研磨材を混合した液体または気体をそ
の線材・棒鋼に噴射させ冷却するとともに脱スケール処
理を行う無スケール・オーステナイト系ステンレス１ｇ
線材・棒鋼の製造方法である。This invention involves injecting a liquid or gas mixed with an abrasive into the wire or steel bar during the quenching stage to cool it down and descaling it. 1g of scale-free austenitic stainless steel
This is a manufacturing method for wire rods and steel bars.
〈作 用〉
まず、本発明では被熱処理線材・棒鋼の形態をリング状
ないし直線状とする理由はつぎのとおりである。すなわ
ち、線材コイル状態では、溶体化処理での冷却効果が十
分でなく粒界炭化物が析出しやすくなり耐食性が低下し
、熱処理時の温度不均一に伴う材質のばらつきが発生し
昌い、また、研磨材を混合した液体又は気体が十分に行
きわたらないため脱スケール効果が十分にあがらない。<Function> First, in the present invention, the reason why the wire rod/bar to be heat treated is made into a ring shape or a straight shape is as follows. In other words, in the wire coiled state, the cooling effect during solution treatment is insufficient, grain boundary carbides tend to precipitate, reducing corrosion resistance, and variations in material quality occur due to temperature non-uniformity during heat treatment. Since the liquid or gas mixed with the abrasive material does not spread sufficiently, the descaling effect cannot be achieved sufficiently.
次に、溶体化処理の急冷する段階において研磨材を均一
に混合した液体又は気体を該線材、棒鋼に噴射し、冷却
と脱スケール処理を行う。Next, in the quenching stage of solution treatment, a liquid or gas uniformly mixed with an abrasive is injected onto the wire rod or steel bar to perform cooling and descaling treatment.
従来のように溶体化処理後、研磨材を噴射せずに、溶体
化処理の急冷却段階で研磨材を噴射する理由はつぎのと
おりである。すなわち、急冷段階では冷却に伴う材料の
熱収縮応力が加熱時に形成された酸化スケールにクラン
クを発生させるとともに研磨材の衝突によるクランクの
拡大・エリ離を著しく促進させるので、脱スケールが極
めて短時間に進行する。The reason why the abrasive is not injected after the solution treatment as in the conventional method but is injected at the rapid cooling stage of the solution treatment is as follows. In other words, in the quenching stage, the thermal shrinkage stress of the material as it cools generates cranks in the oxide scale formed during heating, and the impact of the abrasive material significantly accelerates the expansion and separation of the cranks, so descaling takes an extremely short time. Proceed to.
また、冷媒として液体を用いる場合には研磨材が混合さ
れていると、被熱処理材の冷却初期に形成される冷媒の
蒸気膜が早期に破られるため、冷却効果も著しく向上す
る利点もある。In addition, when a liquid is used as the refrigerant, if an abrasive is mixed therein, the vapor film of the refrigerant that is formed during the initial cooling of the heat-treated material is broken early, which has the advantage of significantly improving the cooling effect.
以上の方法により溶体化処理後の急冷と脱スケール処理
が同時に、かつ効率的に実施できるため、大幅なコスト
ダウン、設備の簡略化及び酸洗処理に伴う公害発生の防
止ができる。By the above method, rapid cooling and descaling treatment after solution treatment can be performed simultaneously and efficiently, resulting in significant cost reduction, equipment simplification, and prevention of pollution caused by pickling treatment.
なお、本発明は線材、棒鋼の形態がリング状ないし直線
状であれば溶体化処理を熱間圧延後ラインで直接的に行
う場合でも、バッチ的に行う場合のいずれにも適用可能
であることがら掻めて応用範囲が広い特色がある。It should be noted that the present invention can be applied to both cases where the solution treatment is carried out directly on the line after hot rolling, or in a batch manner, as long as the wire rod or steel bar has a ring or straight shape. It has the characteristics of being compact and having a wide range of applications.
次に、・本発明を実施するための装置、作用を図に従っ
て説明する。Next, the apparatus and operation for carrying out the present invention will be explained according to the drawings.
第１図は線材に通用した例であり、第２図は棒鋼に適用
した例である。Fig. 1 shows an example applied to wire rods, and Fig. 2 shows an example applied to steel bars.
すなわち、第１図、第２図において、被熱処理材である
リング状ないし直線としたオーステナイト系ステンレス
線材１及び棒ｇ４１を溶体化処理温度に保持した加熱炉
３に搬送ローラ２上で搬送し連続、的に加熱・保持する
。その後、冷却装置である上ノズル４−１及び下ノズル
５−１より研磨材を混合した水を線材１及び棒！２１７
の表面に均等に噴射し急冷すると表面スケールが除去さ
れる。That is, in FIGS. 1 and 2, the ring-shaped or straight austenitic stainless steel wire rod 1 and the rod g41, which are the materials to be heat treated, are conveyed on the conveyor rollers 2 to the heating furnace 3 maintained at the solution treatment temperature, and are continuously conveyed. , heat and hold. After that, water mixed with abrasive is poured into the wire rod 1 and the rod through the upper nozzle 4-1 and lower nozzle 5-1, which are cooling devices. 217
Surface scale is removed by spraying it evenly onto the surface and rapidly cooling it.
冷却後のスケール及び研磨材の混合水は、回収槽１０に
集められ廃液処理装置（記入せず）に送られ処理後、再
使用される。溶体化処理及び脱スケール処理された線材
１はリホーミングタブ６で蓄えられコイルとされる。棒
鋼７の場合は剪断機８にて所定の寸法に切断後、ヤード
９に集積される。The scale and abrasive mixed water after cooling is collected in a recovery tank 10, sent to a waste liquid treatment device (not shown), treated, and reused. The wire rod 1 subjected to solution treatment and descaling treatment is stored in a reforming tub 6 and made into a coil. In the case of the steel bar 7, it is cut into predetermined dimensions by a shearer 8 and then accumulated in a yard 9.
〈実施例〉
以下に実施例を示す、第１表に示す化学成分を有すル５
ＬＩＳ ３０４ （７）線材（線径５．５ ｓｍφ）を
、第１図に示す装置で１０５０℃にて加熱後アランダム
を研磨材として混合した液を噴射し急冷を行い、表面の
脱スケール率を測定した。比較のため加熱条件は同一に
し、研磨材未混合の水を同一噴射条件で噴射し急冷した
のち、加熱炉を通さずアランダムを混合した水を全（同
一条件で噴射し、表面の脱スケール率を測定した。この
結果を第２表に示した。<Example> Examples are shown below.
LIS 304 (7) A wire rod (wire diameter 5.5 smφ) was heated at 1050°C using the apparatus shown in Figure 1, and then rapidly cooled by spraying a liquid mixed with alundum as an abrasive to determine the surface descaling rate. was measured. For comparison, the heating conditions were the same, water without abrasive mixed was injected under the same injection conditions, and after quenching, water mixed with alundum without being passed through the heating furnace was injected under the same conditions to descale the surface. The results are shown in Table 2.
また、第１表に示す化学成分を有するＳＵＳ ３０４゜
３０鶴φの棒鋼を第２図に示す装置で１０５０℃にて加
熱後、珪石粒を研磨材とした混合水を噴射し急冷を行い
、表面の脱スケール率を測定した。In addition, a steel bar of SUS 304° x 30 φ having the chemical composition shown in Table 1 was heated at 1050°C in the apparatus shown in Fig. 2, and then quenched by spraying water mixed with silica grains as an abrasive. The surface descaling rate was measured.
線材の例と同様に比較のために加熱条件を同一にし、冷
却を水のみで同一条件で行った後、脱スケール処理を同
一研磨°材の混合水で同一噴射条件で行った場合の表面
の脱スケール率を測定した。As with the wire rod example, the heating conditions were the same for comparison, cooling was performed using only water under the same conditions, and then descaling was performed using water mixed with the same abrasive material under the same jetting conditions. The descaling rate was measured.
この結果を第２表に示した。なお、第２表には各供試材
の機械的性質も併せて示した。The results are shown in Table 2. Note that Table 2 also shows the mechanical properties of each sample material.
第２表において供試材丸１及び３は、溶体化処理の急冷
２段階で研磨材混合水にて噴射冷却、した本発明の実施
例である。いずれも脱スケールが完全に行なわれている
。In Table 2, test materials Nos. 1 and 3 are examples of the present invention in which jet cooling was performed with abrasive-mixed water in the second quenching stage of solution treatment. Both have been completely descaled.
他方、溶体化処理の急冷を水のみで冷却後、再び研磨材
混合水で噴射冷却した場合の比較例である供試材隘２及
び４では、同一噴射条件にもか＼わらず脱スケール率は
低い。On the other hand, for sample materials Nos. 2 and 4, which are comparative examples in which the solution treatment was rapidly cooled with only water and then again jet-cooled with abrasive-mixed water, the descaling rate was lower despite the same jetting conditions. is low.
機械的性質は、本発明例及び比較例ともに同等であり本
発明法による機械的性質への悪影響は全くない。The mechanical properties of both the inventive example and the comparative example are the same, and the method of the present invention has no adverse effect on the mechanical properties.
第１表
第２表
〈発明の効果〉
本発明の方法によると、従来オーステナイト系ステンレ
ス鋼線材・棒鋼の溶体化処理後に別工程で実施されてい
た酸洗などの脱スケール処理を、溶体化処理時に同時に
効率的に実施できて、本発明は、工業的に掻めて有効で
ある。Table 1 Table 2 <Effects of the Invention> According to the method of the present invention, descaling treatment such as pickling, which was conventionally carried out in a separate process after solution treatment of austenitic stainless steel wire rods and bars, can be replaced with solution treatment. The present invention is industrially very effective because it can be carried out simultaneously and efficiently.
第１図は、本発明を線材に適用した説明図、第２図は、
本発明を棒鋼に適用した説明図である。
１・・・線材
２・・・搬送ローラ
３・・・加熱炉
４・・・研磨材入り冷却水上方配管
４−１・・・上方ノズル
５・・・研磨材入り冷却水下方配管
５−１・・・下方ノズル
６・・・リホーミングタブ
７・・・棒 鋼
８・・・剪断機
９・・・ヤード
１０・・・回収槽Fig. 1 is an explanatory diagram in which the present invention is applied to a wire, and Fig. 2 is an explanatory diagram in which the present invention is applied to a wire.
It is an explanatory view in which the present invention is applied to a steel bar. 1... Wire rod 2... Conveyance roller 3... Heating furnace 4... Upper piping of cooling water containing abrasive material 4-1... Upper nozzle 5... Lower piping of cooling water containing abrasive material 5-1 ...Lower nozzle 6...Rehoming tab 7...Bar steel 8...Shearer 9...Yard 10...Collection tank
Claims (1)
線材・棒鋼を溶体化処理するに際し、その急冷段階にお
いて研磨材を混合した液体または気体をその線材・棒鋼
に噴射させ冷却するとともに脱スケール処理を行うこと
を特徴とする無スケール・オーステナイト系ステンレス
鋼線材・棒鋼の製造方法。When solution annealing a ring-shaped or straight austenitic stainless steel wire or bar, a liquid or gas mixed with an abrasive is injected onto the wire or bar during the quenching stage to cool it and descale it. A method for producing scale-free austenitic stainless steel wire and bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23635986A JPS6393828A (en) | 1986-10-06 | 1986-10-06 | Manufacture of scale-free austenitic stainless steel wire and bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23635986A JPS6393828A (en) | 1986-10-06 | 1986-10-06 | Manufacture of scale-free austenitic stainless steel wire and bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6393828A true JPS6393828A (en) | 1988-04-25 |
Family
ID=16999630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23635986A Pending JPS6393828A (en) | 1986-10-06 | 1986-10-06 | Manufacture of scale-free austenitic stainless steel wire and bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6393828A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100775297B1 (en) * | 2001-12-26 | 2007-11-08 | 주식회사 포스코 | Method for manufacturing the wire rod coil and apparatus for descaling the oxide scale of wire rods |
| GB2599638A (en) * | 2020-09-30 | 2022-04-13 | Hs Products Ltd | Wire treatment method and apparatus |
-
1986
- 1986-10-06 JP JP23635986A patent/JPS6393828A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100775297B1 (en) * | 2001-12-26 | 2007-11-08 | 주식회사 포스코 | Method for manufacturing the wire rod coil and apparatus for descaling the oxide scale of wire rods |
| GB2599638A (en) * | 2020-09-30 | 2022-04-13 | Hs Products Ltd | Wire treatment method and apparatus |
| GB2599638B (en) * | 2020-09-30 | 2024-06-05 | Hs Products Ltd | Wire treatment method and apparatus |
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