JPS58119418A - Continuous drawing method of bar steel or wire rod - Google Patents
Continuous drawing method of bar steel or wire rodInfo
- Publication number
- JPS58119418A JPS58119418A JP294382A JP294382A JPS58119418A JP S58119418 A JPS58119418 A JP S58119418A JP 294382 A JP294382 A JP 294382A JP 294382 A JP294382 A JP 294382A JP S58119418 A JPS58119418 A JP S58119418A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- wire rod
- roll
- wire drawing
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 7
- 239000010959 steel Substances 0.000 title claims abstract description 7
- 238000005491 wire drawing Methods 0.000 claims abstract description 35
- 238000005461 lubrication Methods 0.000 claims description 21
- 230000001050 lubricating effect Effects 0.000 abstract description 9
- 238000001035 drying Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 4
- 238000004513 sizing Methods 0.000 abstract description 3
- 238000010273 cold forging Methods 0.000 description 9
- 238000005554 pickling Methods 0.000 description 9
- 239000000314 lubricant Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 3
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 3
- 229910000165 zinc phosphate Inorganic materials 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C19/00—Devices for straightening wire or like work combined with or specially adapted for use in connection with drawing or winding machines or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、冷間鍛造用の棒鋼または線材（以下線材と
いう）をインラインで連続的に伸線する伸線方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire drawing method for continuously drawing a steel bar or wire rod for cold forging (hereinafter referred to as wire rod) in-line.
ボルトやナツト等の製造に供せられる冷間鍛造用の棒鋼
または線材の伸線方法としては、線材を酸洗して脱スケ
ールを行い、潤滑処理した後ダイスにより１次伸線を行
い、その後、伸線による加工硬化に対する焼鈍を行い、
さらに２回目の酸洗、潤滑処理を行った後軽伸線による
２次伸線を行うのが一般的である。The method of drawing steel bars or wire rods for cold forging used in the manufacture of bolts, nuts, etc. is to pickle the wire rods to descale them, lubricate them, and then perform primary wire drawing with dies. , annealed for work hardening due to wire drawing,
Furthermore, after a second pickling and lubrication treatment, secondary wire drawing by light wire drawing is generally performed.
この酸洗あるいは潤滑処理には、線材コイルをＣ形フッ
クに吊り下げ処理権に浸して行ういわゆるバッチ式処理
方法が行なわれる。すなわち、塩酸あるいは硫酸等の酸
洗槽に線材フィルを浸漬して脱スケールを行い、つぎに
りん酸亜鉛による潤滑下地槽に浸し、さらにステアリン
酸ナトリウムの潤滑剤槽に浸漬したのち乾燥して伸線さ
れるものである。This pickling or lubrication treatment is carried out by a so-called batch treatment method in which the wire coil is suspended from a C-shaped hook and immersed in the treatment right. That is, the wire fill is descaled by immersing it in a pickling tank with hydrochloric acid or sulfuric acid, etc., then it is immersed in a lubrication base tank with zinc phosphate, and then in a lubricant tank with sodium stearate, and then dried and stretched. It is something that is lined up.
しかし、この方法は線材コイルをそのま５浸漬するため
、線材と線材の接触部等には酸液あるいは潤滑液が浸透
せず、スケール残りあるいは潤滑皮膜が不均一になる問
題がある。However, in this method, since the wire coil is immersed as it is, the acid solution or lubricant does not penetrate into the contact areas between the wires, and there is a problem that scale remains or the lubricant film becomes uneven.
また、このようなバッチ式処理方法では多くの人手と時
間を要し生産性が低くコスト高となっており、さらに酸
洗廃液の処理が必要である等の間頭がある。Moreover, such a batch treatment method requires a lot of manpower and time, resulting in low productivity and high cost, and also has problems such as the need to treat the pickling waste liquid.
この発明は、このような諸問題を解決するため種々研究
の結果、冷間鍛造用の棒鋼または線材の酸洗を行なわず
に、連続的に伸線する方法を発明した。すなわち、この
発明の要旨は、ペイオフスタンドから繰り出された棒鋼
捷たは線材を、複数ロールを千鳥状に配設したロールベ
ンダーによシ、脱スケールするとともに少なくとも伸び
率１０％以上の伸線を行い、引続いて潤滑処理を施し、
つづいて軽伸線によシサイジングを行なうことを特徴と
するものである。In order to solve these problems, the present invention has been made as a result of various researches and has devised a method of continuously drawing wire rods or wire rods for cold forging without pickling them. That is, the gist of the present invention is to descale the steel bar or wire rod fed out from the payoff stand using a roll bender having a plurality of rolls arranged in a staggered manner, and to draw the wire with an elongation rate of at least 10% or more. followed by lubrication treatment,
This method is characterized in that sizing is subsequently performed by light wire drawing.
すなわちこの発明の伸線方法は、第１に脱スケールのた
めの酸洗を行なわれないこと、第２に脱スケールととも
に１次伸線も併せ行うこと、第３にこれら脱スケール、
１次伸線、潤滑処理、２次伸線を連続的に行う伸線方法
である。That is, the wire drawing method of the present invention requires that, firstly, pickling for descaling is not performed, secondly, primary wire drawing is performed together with descaling, and thirdly, these descaling,
This is a wire drawing method in which primary wire drawing, lubrication treatment, and secondary wire drawing are performed continuously.
以下添付図面にもとづき詳しく説明する。第１図はこの
発明伸線方法の実施の一例を示す図であＬ（１）はペイ
オフスタンド、（２Ｈ；Ｊロールベンダー、（３）は潤
滑処理装置、（４）は伸線ダイス、（５）は巻取シ機で
ある。A detailed explanation will be given below based on the attached drawings. FIG. 1 is a diagram showing an example of the implementation of the wire drawing method of the present invention, in which L (1) is a payoff stand, (2H; J roll bender, (3) is a lubrication treatment device, (4) is a wire drawing die, ( 5) is a winding machine.
ペイオフスタンド（１）は伸線に供する線材コイルをセ
ットして繰り出すようになっている。The payoff stand (1) is designed to set and pay out a wire coil for wire drawing.
ロールベンダー（２）は、複数のロールを千鳥状に配設
した水平ロール群（６）と、垂直ロール群（７）とから
なっており、ペイオフスタンドから繰す出される線材を
水平ロール群（６）により上下蛇行させ、垂直ロール群
（７）により左右蛇行させながら送るもので、伸線と脱
スケールを同時に行うものである。The roll bender (2) consists of a horizontal roll group (6) in which a plurality of rolls are arranged in a staggered manner and a vertical roll group (7). 6), and the vertical roll group (7) causes the wire to meander from side to side, thereby drawing and descaling the wire at the same time.
伸線の伸び率を調整するには蛇行中（蛇行の波高さ）を
調節することによって調整される。すなわち、千鳥状に
配設された各ロール位置を調節して蛇行の波高さを大き
くすれば伸び率は大きくなり、波高さを小さくすると伸
び率も小さくなるものである。第２図はロールベンダー
による伸び率と減面率との関係を示す図である。横軸は
ロールベンダーによる線材の伸び率であり、縦軸は線材
の減面率である。第３図はロールベンダーによる線材の
伸び率と脱スケール率との関係を示す図である。The elongation rate of wire drawing can be adjusted by adjusting the meandering (wave height of the meandering). That is, if the height of the meandering waves is increased by adjusting the position of each of the rolls arranged in a staggered manner, the elongation rate will be increased, and if the wave height is decreased, the elongation rate will also be decreased. FIG. 2 is a diagram showing the relationship between the elongation rate and area reduction rate due to roll bender. The horizontal axis is the elongation rate of the wire due to the roll bender, and the vertical axis is the area reduction rate of the wire. FIG. 3 is a diagram showing the relationship between the elongation rate of the wire and the descaling rate by roll bender.
横軸はロールベンダーによる線材の伸び率であり、縦軸
は脱スケール率である。第３図であきらかのように、ロ
ールベンダーによる線材の伸び率が１０係以上では殆ん
どのスケールが除去されている。The horizontal axis is the elongation rate of the wire due to the roll bender, and the vertical axis is the descaling rate. As is clear from FIG. 3, most of the scale is removed when the elongation rate of the wire rod by the roll bender is 10 factors or more.
このことからロールベンダーにより伸線と脱スケールを
併せ行う場合には少なくとも１０％以上の伸び率を与え
るべきである。For this reason, when wire drawing and descaling are performed together using a roll bender, an elongation rate of at least 10% or more should be provided.
このように脱スケールされ、伸線された線材は潤滑処理
が施される。潤滑処理は、２次伸線と冷間鍛造のために
充分強固な潤滑皮膜を形成する目的で行なわれる。The wire rod thus descaled and drawn is subjected to a lubrication treatment. The lubrication treatment is performed for the purpose of forming a sufficiently strong lubricating film for secondary wire drawing and cold forging.
潤滑処理装置（３）は、潤滑下地処理槽（８）と潤滑処
理槽（９）と、乾燥装置００とからなっている。潤滑下
地処理槽（８）には潤滑下地剤、例えば、りん酸亜鉛溶
液が付着をよくするため加温されて満たしており、この
槽中に線材が１０〜１５秒間通過浸漬されるようになっ
ている。The lubrication treatment device (3) includes a lubrication base treatment tank (8), a lubrication treatment tank (9), and a drying device 00. The lubricating base treatment tank (8) is filled with a lubricating base agent, such as a zinc phosphate solution, heated to improve adhesion, and the wire is passed through and immersed in this tank for 10 to 15 seconds. ing.
また、潤滑処理槽（９）には、加温された潤滑剤、例え
ばステアリン酸ナトリウム溶液が収容されており、この
槽中を線材が１〜２秒間通過浸漬されるようになってい
る。Further, the lubrication treatment tank (9) contains a heated lubricant, for example, a sodium stearate solution, and the wire is passed through this tank and immersed for 1 to 2 seconds.
乾燥装置００は、被覆付着した潤滑下地剤と潤滑剤を乾
燥固着するもので、赤外線照射装置が設けられているが
、熱風乾燥装置、ある１いは誘導加熱乾燥装置でもよい
。The drying device 00 dries and fixes the coated lubricating base agent and lubricant, and is equipped with an infrared irradiation device, but may also be a hot air drying device, or an induction heating drying device.
（第 ５ 頁）
このように潤滑下地処理と潤滑処理と乾燥により強固に
均一に潤滑皮膜が施された線材は、伸線ダイス（４）に
より軽伸線され、巻き取り機（５）により巻き取られる
。ダイス（４）による軽伸線はロールベンダーによる伸
線の残りを伸線し所定の寸法にサイジングするものであ
る。すなわちこの発明は、ロールベンダーによる線材の
伸び率を大きくしてダイスによる伸線の減面率を小さく
し軽伸線にした方が、種々の点で好結果が得られるから
である。(Page 5) The wire rod, which has been coated with a strong and uniform lubricant film through the lubrication base treatment, lubrication treatment, and drying, is lightly drawn with a wire drawing die (4) and wound with a winder (5). taken. Light wire drawing using the die (4) is to draw the remainder of the wire drawn using the roll bender and sizing it to a predetermined size. In other words, this invention is based on the fact that better results can be obtained in various respects by increasing the elongation rate of the wire rod using a roll bender and reducing the area reduction rate during wire drawing using dies, resulting in light wire drawing.
すなわちダイスによる伸線の減面率を小さくする効果ト
、ロールベンダーによるバックテンションによる相乗的
効果によりダイスの磨耗は大巾に減少する。またインラ
インにより連続的に潤滑処理を行うことにより、短時間
で軸絞りの良好な冷間鍛造用線材が得られるものである
。That is, the wear of the die is greatly reduced due to the synergistic effect of reducing the area reduction rate of the wire drawing by the die and the back tension produced by the roll bender. Further, by continuously performing in-line lubrication treatment, a wire rod for cold forging with good axial drawing can be obtained in a short time.
実施例 第１図に示す装置によりこの発明伸線方法を実施した。Example The wire drawing method of this invention was carried out using the apparatus shown in FIG.
使用した素材の線材は鋼種５２５Ｃの１４ｎφ径の熱間
圧延材から、１１．６ｆｆφ径の冷間鍛造用線材を伸線
製造した。The wire material used was a hot-rolled material of steel type 525C with a diameter of 14 nφ, and a wire rod for cold forging with a diameter of 11.6 ffφ was produced by wire drawing.
ロールベンダーは直径９０餌φのロールを５個千鳥状に
配設した水平ロール群と、同様の垂直ロール群からなっ
ており、このロールベンダーを伸び率３２チ（減面率２
４チ）、すなわち１４肩１径の素材が１２．２ ｎφ径
に伸線するよう調整した。The roll bender consists of a horizontal roll group in which five rolls with a diameter of 90 baits are arranged in a staggered manner, and a similar vertical roll group.
In other words, the wire was adjusted so that a material with 14 shoulders and 1 diameter was drawn to a wire diameter of 12.2 nφ.
潤滑下地処理槽には、りん酸亜鉛３００ ！／ｌの溶液
を８０°ＣＫ加熱し、線材を１５秒間浸漬通過させた。Zinc phosphate 300% in the lubrication base treatment tank! /l solution was heated to 80° C. and the wire was immersed for 15 seconds.
潤滑処理槽には、ステアリン酸ナトリウムの３００ ｙ
／ｌ溶液を８０°Ｃに加温し、線材が１秒間浸漬通過す
るようにした。The lubrication treatment tank contains 300 y of sodium stearate.
/l solution was heated to 80°C and the wire was immersed for 1 second.
伸線ダイスは、減面率１０％、すなわち１２．２ｆｆｍ
＋＃径のものが１１．６ｆｆｊ！ＬｊＩ径に伸線される
ように設計されたダイスを使用した。The wire drawing die has an area reduction rate of 10%, or 12.2ffm.
+# diameter is 11.6ffj! A die designed to draw wire to the LjI diameter was used.
以上の条件により連続伸線を行い得られた線材の残スケ
ール屋、潤滑剤付着状況ならびに冷間鍛造潤滑性につい
て調査した結果を、従来方法のものと併せ第１表に示す
。Table 1 shows the results of an investigation of the residual scale, lubricant adhesion, and cold forging lubricity of the wire rods obtained by continuous wire drawing under the above conditions, together with those obtained by the conventional method.
引
第 １ 表
第１表で明らかのように、この発明の伸線方法によって
製造された冷間鍛造用線材は、従来のバッチ式酸洗法に
よシ製造された線材に何ら遜色のない線材が能率的な連
続伸線によって得られ、従来７０〜８０分／ １ ｔコ
イル程度の生産性であったものが２０〜３０分／ １
ｔコイルと飛躍的に同上した。Table 1 As is clear from Table 1, the wire rod for cold forging manufactured by the wire drawing method of the present invention is comparable to the wire rod manufactured by the conventional batch pickling method. can be obtained by efficient continuous wire drawing, and the productivity of conventional wires was 70 to 80 minutes/1 t coil, but now it is 20 to 30 minutes/1 t coil.
It was dramatically the same as the t-coil.
まだ、ダイスの磨耗も大巾に減少し従来の耐命時間の１
０〜５０倍に延長された。However, the wear and tear on the dies has been greatly reduced, and the lifespan has been reduced to 1/2 of the conventional lifespan.
Extended from 0 to 50 times.
（第７ 頁）
以上のように、この発明伸線方法は、従来バッチ式酸洗
法によって製造された冷間鍛造用線材を、酸洗を行なう
ことなく連続的に製造する伸線方法にして、その生産性
は飛躍的に向上し、伸線ダイスの磨耗も大巾に減少する
等の効果を有する。また廃液処理も不要となる利点も有
する。(Page 7) As described above, the wire drawing method of the present invention is a wire drawing method that continuously produces wire rods for cold forging, which were conventionally produced by a batch pickling method, without pickling. , the productivity is dramatically improved, and the wear of wire drawing dies is greatly reduced. It also has the advantage of not requiring waste liquid treatment.
第１図はこの発明伸線方法の実施の一例を示す図、第２
図はロールベンダーによる線材の伸び率と減面率との関
係を示す図、第３図はロールベンダーによる線材の伸び
率と脱スケール率との関係を示す図である。
図中、１・・・ペイオフスタンド、２・・・ロールベン
ダー、３・・・潤滑処理装置、４・・・ダイス、５・・
・巻き取り機、６・・・水平ロール群、７・・・垂直ロ
ール群、８・・・潤滑下地処理槽、９・・・潤滑処理槽
、１０・・・乾燥装置。
出願人 住友金属工業株式会社
σ′Ｉ
代理人 押 １） 良 久 １．１（第 ８ 頁
）Fig. 1 is a diagram showing an example of the implementation of the wire drawing method of this invention;
The figure is a diagram showing the relationship between the elongation rate and area reduction rate of the wire rod by roll bender, and FIG. 3 is a diagram showing the relationship between the elongation rate and descaling rate of the wire rod by roll bender. In the figure, 1...Payoff stand, 2...Roll bender, 3...Lubrication processing device, 4...Dice, 5...
- Winding machine, 6... horizontal roll group, 7... vertical roll group, 8... lubrication base treatment tank, 9... lubrication treatment tank, 10... drying device. Applicant Sumitomo Metal Industries, Ltd. σ'I Agent Oshi 1) Yoshihisa 1.1 (Page 8)
Claims (1)
複数のロールを千鳥状に配設したロールベンダーにより
、脱スケールを行うと共に１０％以上の伸び率を与えた
のち潤滑処理を施し、ついで軽伸線によシサイジングを
行うことを特徴とする棒鋼線材の連続伸線方法。To the steel bar or wire rod that is unwound from the payoff stand,
A steel bar characterized in that it is descaled and given an elongation rate of 10% or more using a roll bender in which a plurality of rolls are arranged in a staggered manner, then subjected to lubrication treatment, and then sized by light wire drawing. Continuous wire drawing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP294382A JPS58119418A (en) | 1982-01-11 | 1982-01-11 | Continuous drawing method of bar steel or wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP294382A JPS58119418A (en) | 1982-01-11 | 1982-01-11 | Continuous drawing method of bar steel or wire rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58119418A true JPS58119418A (en) | 1983-07-15 |
Family
ID=11543438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP294382A Pending JPS58119418A (en) | 1982-01-11 | 1982-01-11 | Continuous drawing method of bar steel or wire rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209092A (en) * | 1991-09-03 | 1993-05-11 | Russo Anthony J | Continuous wire drawing process with chemical descaling and post-die treatment and apparatus |
-
1982
- 1982-01-11 JP JP294382A patent/JPS58119418A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209092A (en) * | 1991-09-03 | 1993-05-11 | Russo Anthony J | Continuous wire drawing process with chemical descaling and post-die treatment and apparatus |
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