JPS6128454B2 - - Google Patents
Info
- Publication number
- JPS6128454B2 JPS6128454B2 JP5476883A JP5476883A JPS6128454B2 JP S6128454 B2 JPS6128454 B2 JP S6128454B2 JP 5476883 A JP5476883 A JP 5476883A JP 5476883 A JP5476883 A JP 5476883A JP S6128454 B2 JPS6128454 B2 JP S6128454B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- cutting
- processing tool
- protrusions
- fibers
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 239000000835 fiber Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 15
- 238000004804 winding Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 229920001410 Microfiber Polymers 0.000 description 2
- 239000011210 fiber-reinforced concrete Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
- B23P17/04—Metal-working operations, not covered by a single other subclass or another group in this subclass characterised by the nature of the material involved or the kind of product independently of its shape
- B23P17/06—Making steel wool or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Description
【発明の詳細な説明】
本発明は、例えば鋼繊維補強コンクリートに使
用される鋼繊維の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing steel fibers used, for example, in steel fiber reinforced concrete.
鋼繊維補強コンクリートはコンクリート中に鋼
繊維を配向混入したもので普通コンクリートに比
べて、ひびわれに対する抵抗性、靭性、引張強
度、曲げ強度、剪断強度、耐熱性、凍結融解作用
に対する抵抗性及び表面劣化に対する抵抗性等の
各種性能が格段にすぐれており、近年注目を集め
ている。ところが混入する鋼繊維は大量生産が難
しく、製造コストが高いという問題点を有してい
る。 Steel fiber-reinforced concrete is made by mixing oriented steel fibers into concrete, and has better resistance to cracking, toughness, tensile strength, bending strength, shear strength, heat resistance, resistance to freeze-thaw action, and surface deterioration compared to ordinary concrete. It has been attracting attention in recent years because of its excellent performance such as resistance to water. However, there are problems in that the steel fibers mixed in are difficult to mass produce and the manufacturing cost is high.
従来の鋼繊維の製造方法としては３種類あり、
第１の切断フアイバ法は、圧延、引抜きされた鋼
線を切断刃で所定長さに切断するものであり、鋼
線を製造する鋼繊維の太さまで塑性加工しなけれ
ばならず、切断前の工程が極めて長い。また第２
の剪断フアイバ法は冷延薄鋼板を剪断刃で剪断す
るものであり、薄鋼板は１枚ずつしか剪断するこ
とができない。更に第３の切削フアイバ法は、鋼
の厚板又はブロツクを回転する切削刃、即ちフラ
イス平刃によつて切削するものであり、これも常
に１本ずつしか鋼繊維が得られない。 There are three types of conventional steel fiber manufacturing methods:
The first cutting fiber method is to cut rolled and drawn steel wire into a predetermined length using a cutting blade, and the steel wire must be plastic-processed to the thickness of the steel fiber used to manufacture the steel wire. The process is extremely long. Also the second
The shear fiber method involves shearing cold-rolled thin steel sheets with shear blades, and the thin steel sheets can only be sheared one by one. A third method of cutting fibers involves cutting a steel plate or block with a rotating cutting blade, ie, a flat milling blade, which also yields only one steel fiber at a time.
本発明は、このような従来方法に鑑み、簡単且
つ容易に大量生産ができ、製造コストを低くでき
るようにした鋼繊維の製造方法を提供することを
目的とし、その特徴とするところは、素材表面に
長手方向の突条部を塑性加工し、この素材の突条
部を切断刃で細線状に切取る点にある。 In view of such conventional methods, the present invention aims to provide a method for manufacturing steel fibers that can be easily and easily mass-produced and can reduce manufacturing costs. The process consists of plastically forming longitudinal protrusions on the surface of the material, and then cutting the protrusions of this material into thin lines with a cutting blade.
以下、本発明の実施例を図面に基いて説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第１図及び第２図に示す第１実施例において、
１は丸形又は角形の線状素材、２は第１加工具、
３は第２加工具、６は巻取りロール、７は製造さ
れた鋼繊維を夫々示している。 In the first embodiment shown in FIGS. 1 and 2,
1 is a round or square linear material, 2 is a first processing tool,
3 is a second processing tool, 6 is a winding roll, and 7 is a manufactured steel fiber.
第１図は素材１表面に長手方向の突条部８を形
成する塑性加工工程を示しており、第１加工具２
は内周に鋸歯状の突起９を有する穴ダイスであり
素材１を通過させることにより、その表面に長手
方向（軸線方向）に連続した多数条の三角形突条
部８を形成する。第１加工具２への素材通過は従
来の圧延加工方法、例えば押出し加工、引抜き加
工で行なわれ、伸線加工と同様である。 FIG. 1 shows the plastic working process of forming longitudinal protrusions 8 on the surface of the material 1, in which the first processing tool 2
is a hole die having serrated protrusions 9 on its inner periphery, and by passing the material 1 through it, a large number of triangular protrusions 8 continuous in the longitudinal direction (axial direction) are formed on its surface. The material is passed through the first processing tool 2 by a conventional rolling method, such as extrusion or drawing, and is similar to wire drawing.
前記第１加工具２は穴ダイスに限らず、第３図
に示すような、外周に複数本の三角溝１０を有す
るローラダイスを用いても良い。また、第１加工
具２の突起９の谷又は溝１０の形状、即ち、突条
部８の断面形状は三角形に限らず、四角形又は半
円形等の形状にすることができる。 The first processing tool 2 is not limited to a hole die, but may also be a roller die having a plurality of triangular grooves 10 on the outer periphery, as shown in FIG. Further, the shape of the valley or groove 10 of the protrusion 9 of the first processing tool 2, that is, the cross-sectional shape of the protrusion 8 is not limited to a triangle, but may be a square, a semicircle, or the like.
前記突条部８を有する素材１は第２図に示す切
断工程に移される。第２加工具３はリング状切断
刃で、素材１の谷底８ａの径と同一又は若干大径
の刃部１２を有しており、第２加工具３と同芯に
挿入されてくる素材１の突条部８をその根元部か
ら連続して切断し、断面略三角形状の細線状の鋼
繊維７を切取る。素材１の周方向に多数本となつ
ている突条部８は第２加工具３によつて同時に且
つ同一形状に切取られる。 The material 1 having the protruding stripes 8 is transferred to a cutting process shown in FIG. The second processing tool 3 is a ring-shaped cutting blade, and has a blade portion 12 with a diameter that is the same as or slightly larger than the diameter of the bottom 8a of the material 1, and the material 1 is inserted concentrically with the second processing tool 3. The protrusion 8 is continuously cut from its root to cut out a thin wire-shaped steel fiber 7 having a substantially triangular cross section. A large number of protrusions 8 in the circumferential direction of the material 1 are cut out simultaneously and in the same shape by the second processing tool 3.
前記切断工程後の素材１は表面が円形又は第２
図Ｂに示されるような若干凹凸のある状態となつ
ており、これを再び塑性加工工程へ供給し、前記
第１加工具２のダイスより小径のダイスに通して
突条部８を形成し、更に前記と同様に鋼繊維７を
形成する。これを繰返すことによつて、太い棒状
素材１から数回にわたつて多数本の同一又は異形
の鋼繊維７と、最終的に残る細い線材が得られ
る。この塑性加工工程及び切断工程は独立して行
なつても連続して行なつても良く、また連続して
行なう場合は両工程を１ブロツクとして複数ブロ
ツクを直列して最終的な細線材を得るまで連続加
工をしても良い。 After the cutting process, the material 1 has a circular or second surface.
It is in a slightly uneven state as shown in FIG. Further, steel fibers 7 are formed in the same manner as described above. By repeating this process, a large number of identical or irregularly shaped steel fibers 7 and a thin wire rod that ultimately remains are obtained several times from the thick rod-shaped material 1. The plastic working process and the cutting process may be performed independently or consecutively, and if they are performed continuously, both processes are treated as one block and multiple blocks are connected in series to obtain the final fine wire material. It is also possible to perform continuous processing up to
前記切断工程で形成される鋼繊維７は、その材
質によつて加工中に途中で切れたりすることがあ
るが、通常は連続した極細繊維として取出すこと
ができ、これを巻取りロール６で巻取り、運搬、
保存等に供させる。 The steel fibers 7 formed in the cutting process may break during processing depending on the material, but usually they can be extracted as continuous ultrafine fibers, which are wound with a winding roll 6. Pick up, transport,
Provide for preservation, etc.
また、連続鋼繊維７は巻取り前に、第４図に示
すような変形ロール１１に通しても良い。この変
形ロール１１は外周に凹凸を有し、鋼繊維７を直
線状態から変形させてデフオーメーシヨン１２を
与え、コンクリートとの付着強度を大きくするこ
とができる。このデフオーメーシヨン１２は鉤形
に限らず異径その他の形状にすることができる。 Further, the continuous steel fiber 7 may be passed through a deforming roll 11 as shown in FIG. 4 before being wound up. This deformation roll 11 has irregularities on its outer periphery, and can deform the steel fibers 7 from a straight state to provide a deformation 12 and increase the adhesion strength to concrete. This defamation 12 is not limited to a hook shape, but may have a different diameter or other shapes.
第５図及び第６図は本発明の第２実施例を示し
ており、素材１は平板又はブロツクが使用され、
第１加工具２は外周に三角形突起９を有する上下
１対のローラダイスであり、第２加工具３′は上
下１対のナイフ（切断断刃）で形成されている。 5 and 6 show a second embodiment of the present invention, in which the material 1 is a flat plate or a block;
The first processing tool 2 is a pair of upper and lower roller dies having a triangular protrusion 9 on the outer periphery, and the second processing tool 3' is formed of a pair of upper and lower knives (cutting blades).
第５図に示す塑性加工工程は、平板素材１′を
ローラダイスで圧延しながらその上下面に長手方
向（移送方向）の多数本の突条部８を形成してお
り、第６図に示す切断工程は、前記全突条部８を
ナイフで切断して、同時に且つ同一形状の鋼繊維
７を切取る。 In the plastic working process shown in FIG. 5, a large number of protrusions 8 in the longitudinal direction (transfer direction) are formed on the upper and lower surfaces of the flat plate material 1' while rolling it with a roller die, as shown in FIG. In the cutting process, the entire protrusion 8 is cut with a knife, and the steel fibers 7 of the same shape are cut off at the same time.
この第２実施例では、素材１′の各面側から複
数本の鋼繊維７を切取れるので、巻取りロール６
による巻取り作業及び変形ロール１１によるデフ
オーメーシヨン作業が容易にできる。また、平板
状素材１′に対してその一面のみから鋼繊維７を
切取つたり、又は多角状ブロツク素材の三面以上
の面から同時に鋼繊維を切取つたりすることがで
きる。 In this second embodiment, since a plurality of steel fibers 7 can be cut from each side of the material 1', the winding roll 6
The winding operation by the deformation roll 11 and the deformation operation by the deformation roll 11 can be easily performed. Further, it is possible to cut the steel fibers 7 from only one side of the flat material 1', or to simultaneously cut the steel fibers from three or more sides of the polygonal block material.
以上詳述した本発明によれば、線状又は平板等
の素材１を塑性加工によつて、その表面に長手方
向の突条部８を形成し、この突条部８を切断刃３
で細線状に切取つて鋼繊維７を製造するので、極
細繊維でも極めて簡単且つ容易に製造でき、しか
も素材には複数の突条部８を同時に形成すること
ができるので、大量生産が可能となり、製造コス
トを低減することができる。 According to the present invention described in detail above, the longitudinal protrusions 8 are formed on the surface of the material 1, such as a linear or flat plate, by plastic working, and the protrusions 8 are connected to the cutting blade 3.
Since the steel fibers 7 are produced by cutting them into thin wires, even ultra-fine fibers can be produced very simply and easily.Moreover, since a plurality of protrusions 8 can be formed on the material at the same time, mass production is possible. Manufacturing costs can be reduced.
第１図及び第２図は本発明の第１実施例を示し
ており、第１図Ａ，Ｂは塑性加工工程の夫々断面
側面図と断面正面図、第２図Ａ，Ｂは切断工程の
夫々断面側面図と断面正面図、第３図は第１加工
具の他例を示す断面正面図、第４図はデフオーメ
ージヨン用ローラの１例を示す断面側面図、第５
図及び第６図は本発明の第２実施例を示してお
り、第５図Ａ，Ｂは夫々塑性加工工程の側面図と
断面正面図、第６図Ａ，Ｂは切断工程の断面側面
図と断面正面図である。
１……素材、２……第１加工具、３……第２加
工具（切断刃）、７……鋼繊維、８……突条部。
1 and 2 show a first embodiment of the present invention, FIGS. 1A and 2B are a sectional side view and a sectional front view of the plastic working process, respectively, and 2A and 2B are sectional views of the cutting process. 3 is a sectional front view showing another example of the first processing tool, FIG. 4 is a sectional side view showing an example of the defamation roller, and FIG. 5 is a sectional side view and a sectional front view, respectively.
6 and 6 show a second embodiment of the present invention, FIGS. 5A and 6B are a side view and a cross-sectional front view of the plastic working process, respectively, and FIGS. 6A and B are cross-sectional side views of the cutting process. and a cross-sectional front view. 1...Material, 2...First processing tool, 3...Second processing tool (cutting blade), 7...Steel fiber, 8...Protrusion portion.
Claims (1)
し、この素材１の突条部８を切断刃３で細線状に
切取ることを特徴する鋼繊維の製造方法。1. A method for producing steel fibers, which comprises plastically forming longitudinal protrusions 8 on the surface of a material 1, and cutting the protrusions 8 of the material 1 into thin lines with a cutting blade 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5476883A JPS59182032A (en) | 1983-03-29 | 1983-03-29 | Production method of steel fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5476883A JPS59182032A (en) | 1983-03-29 | 1983-03-29 | Production method of steel fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59182032A JPS59182032A (en) | 1984-10-16 |
| JPS6128454B2 true JPS6128454B2 (en) | 1986-06-30 |
Family
ID=12979945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5476883A Granted JPS59182032A (en) | 1983-03-29 | 1983-03-29 | Production method of steel fibers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59182032A (en) |
-
1983
- 1983-03-29 JP JP5476883A patent/JPS59182032A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59182032A (en) | 1984-10-16 |
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