JPS6150738B2 - - Google Patents
Info
- Publication number
- JPS6150738B2 JPS6150738B2 JP58057697A JP5769783A JPS6150738B2 JP S6150738 B2 JPS6150738 B2 JP S6150738B2 JP 58057697 A JP58057697 A JP 58057697A JP 5769783 A JP5769783 A JP 5769783A JP S6150738 B2 JPS6150738 B2 JP S6150738B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- processing tool
- steel
- cut
- large number
- 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
- 238000005520 cutting process Methods 0.000 claims description 53
- 239000000835 fiber Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 34
- 239000010959 steel Substances 0.000 description 34
- 239000004567 concrete Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000011210 fiber-reinforced concrete Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003860 storage 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)
- Inorganic Fibers (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
用される金属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 metal 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
各種性能が格段すぐれて、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 cracking resistance, toughness, tensile strength, bending strength, shear strength, heat resistance, resistance to freeze-thaw action, and surface resistance compared to ordinary concrete. It has been attracting attention in recent years due to its outstanding performance such as resistance to deterioration. However, there are problems in that the mixed steel fibers 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放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して素材の送り方向と直交
する方向に長い鋼繊維を切り取るものであり、こ
れも常に１本ずつしか鋼繊維が得られない。ま
た、他の従来技術としては実開昭58−31917号公
報に開示されたものがある。この従来技術は、多
数の突起状切削刃部を列設した加工具で、素材表
面を切削して線状物を削り取るが、全ての工程に
ついて同一の加工具で切削しており、第１，２工
程では断面半円形、第３，４工程では断面略扇形
の夫々線状物を得るものである。即ち、先工程で
削り残し部を成するが、その削り残し部の一部を
後工程で切削する技術であり、２工程では歩留り
率が悪く３工程以上必要であり、高価で且つ研磨
等の保守の困難な加工具を酷使しており、製造費
及び設備費が高くなつている。 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
In the shear fiber method, a cold-rolled thin steel plate is sheared with a shear blade, and a thin steel plate can only be sheared once at a time. Furthermore, the third cutting fiber method involves cutting a thick steel plate or block with a rotating cutting blade, that is, a flat milling blade, to cut out long steel fibers in a direction perpendicular to the feeding direction of the material. However, only one steel fiber can be obtained at any given time. Another conventional technique is disclosed in Japanese Utility Model Application Publication No. 58-31917. This conventional technology uses a processing tool that has a large number of protruding cutting blades arranged in a row to cut the surface of the material and scrape off the linear object, but the same processing tool is used for all steps. In the second step, a linear object having a semicircular cross section is obtained, and in the third and fourth steps, a linear object having a substantially fan-shaped cross section is obtained. In other words, an uncut part is formed in the previous process, but this is a technique in which a part of the uncut part is cut in the subsequent process, and the yield rate is poor in two processes, and three or more processes are required, and it is expensive and requires polishing etc. Processing tools that are difficult to maintain are overused, leading to high manufacturing and equipment costs.
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
るようにした金属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、多数の突
起状切削刃部９を連続的に列設した第１加工具２
で、素材１表面を切削して線状物を削り取る金属
繊維のの製造方法において、
前記突起状切削刃部９で削り残された素材１表
面の多数の突条部８を１本線状の刃部３ａを有す
る加工具３で切削して、前記突条部８を線状物に
形成する点にある。 In view of such conventional methods, the present invention aims to provide a method for manufacturing metal fibers that can be simply and easily mass-produced and can reduce manufacturing costs, and has many characteristics. A first processing tool 2 in which protruding cutting blade portions 9 are continuously arranged.
In the method for manufacturing metal fibers in which the surface of the material 1 is cut to remove linear objects, a large number of protrusions 8 on the surface of the material 1 left uncut by the protruding cutting blade portion 9 are removed using a single linear blade. The point is that the protruding portion 8 is formed into a linear object by cutting with the processing tool 3 having the portion 3a.
以下、本発明の実施例を図面に基いて説明す
る。第１図及び第２図に示す第１実施例におい
て、１は丸形又は角形の鋼等の金属の太い棒状素
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。 Embodiments of the present invention will be described below with reference to the drawings. In the first embodiment shown in FIGS. 1 and 2, 1 is a round or square thick rod-shaped material made of metal such as steel, 2 is a first processing tool, 3 is a second processing tool, and 6 is a winding roll. , 7 indicate the manufactured steel fibers, respectively.
第１図は素材１表面から前工程なしに一度に鋼
繊維７を削り取ると同時に長手方向の突条部８を
形成する切削工程を示しており、第１加工具２は
内周に多数の突起状の刃先を連続的に列設した鋸
歯状の削刃部９を有する切削具であり、素材１を
通過させることにより、凹凸のない表面から多数
条の断面三角形状の鋼繊維７を削り出す。そし
て、鋼繊維７が削り取られることによつて素材１
の表面に長手方向（軸線方向）に連続した多数条
の三角形凹部が残り、その凹部間に略三角形突条
部８が形成される。第１加工具２と素材１とはど
ちらか一方のみを対向移動させれば良い。 FIG. 1 shows a cutting process in which steel fibers 7 are scraped off at once from the surface of a material 1 without any pre-processing, and at the same time longitudinal protrusions 8 are formed. It is a cutting tool having a serrated cutting edge 9 in which a continuous row of cutting edges are arranged, and by passing the material 1 through it, a large number of steel fibers 7 having a triangular cross-section are cut out from the smooth surface. . Then, by scraping off the steel fibers 7, the material 1
A large number of triangular recesses continuous in the longitudinal direction (axial direction) remain on the surface of the recess, and approximately triangular protrusions 8 are formed between the recesses. It is sufficient to move only one of the first processing tool 2 and the material 1 toward each other.
前記第１加工具２の切削刃部９の形状は三角形
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 shape of the cutting edge portion 9 of the first processing tool 2 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
具で、素材１の谷底８ａの径と同一又は若干大径
のリング状刃部３ａを有しており、この刃部３ａ
は凹凸のない１本の線状となつており、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り取られる。 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 tool, and has a ring-shaped blade portion 3a having a diameter that is the same as or slightly larger than the diameter of the root 8a of the material 1.
is a single line with no unevenness, and the protrusion 8 of the material 1 that is inserted concentrically with the second processing tool 3 is continuously cut from its root to form a substantially triangular cross section. Cut out the thin wire-shaped steel fiber 7. 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.
前記切断工程後の基材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、これを再び切削工程へ供給し、前記第１
加工具２の切断刃部より小径の刃部を有する切削
具に通して突条部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から切削、切断工程毎にわた
つて多数本の同一又は異形の鋼繊維７と、最終的
に残る細い線材から得られる。この切削工程及び
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 base material 1 has a circular or second surface.
It is in a slightly uneven state as shown in Figure B, and this is fed to the cutting process again and the first
The protrusion 8 is formed by passing it through a cutting tool having a smaller diameter blade than the cutting blade of the processing tool 2, and then the steel fiber 7 is formed in the same manner as described above. By repeating this process, a large number of steel fibers 7 of the same or irregular shape are obtained by cutting the thick rod-shaped material 1 in each cutting process, and a thin wire rod that ultimately remains. This cutting process and 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 until the final thin wire material is obtained. Continuous processing is also possible.
前記切削及び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 and cutting process may break during processing depending on the material, but usually they can be taken out as continuous ultrafine fibers, which are taken out by the winding roll 6. Winding,
Provide transportation, storage, etc.
また、連続鋼繊維７は巻取り前に、第３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. 3 before being wound up. This deformation roll 11 has irregularities on its outer periphery, deforms the steel fibers 7 from a straight state to provide a deformation 12, and can increase adhesion strength to concrete. This defamation 12 is not limited to a hook shape, but may have a different diameter or other shapes.
第４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′は鋸歯状の切削刃部９を有する上下１対の
切削具で、第２加工具３′は上下１対のナイフ
（切削具）で夫々形成されており、第１加工具
２′の前方い溝切具４が配置されている。 FIG. 4 shows a second embodiment of the present invention, in which the material 1' is a flat plate or a block, and the first processing tool 2' is a pair of upper and lower cutting tools each having a serrated cutting edge 9. The second processing tool 3' is formed of a pair of upper and lower knives (cutting tools), and a groove cutting tool 4 is disposed in front of the first processing tool 2'.
第４図Ａ，Ｂに示す切削工程は、平板素材１′
を第１加工具２′の上下切削刃部９で切削して、
その上下面から長手方向（移送方向）の多数本の
鋼繊維７を削り取る。これと同時に素材１′の表
面には断面鋸歯状に配列された突条部８が残り、
これを第４図Ａ，Ｃに示す切断工程で、第２加工
具３′で切断して、同じく鋼繊維７を切り取る。 The cutting process shown in Fig. 4A and B consists of the flat plate material 1'
is cut with the upper and lower cutting blades 9 of the first processing tool 2',
A large number of steel fibers 7 in the longitudinal direction (transfer direction) are scraped off from the upper and lower surfaces. At the same time, protrusions 8 arranged in a serrated cross section remain on the surface of the material 1'.
In the cutting process shown in FIGS. 4A and 4C, this is cut with the second processing tool 3', and the steel fibers 7 are also cut out.
この第２実施例では、第１加工具２′の前方に
上下１対のロール状溝切具４を備えており、この
溝切具４はその外周に素材１′の長手方向と直交
する溝切刃部１５を有し、切削工程に供給される
素材１′に所定間隔をおいて溝１６を形成する。
この溝１６は切削刃部９の切削位置と同一又はよ
り深く形成され、切削及び切断加工して得られる
鋼繊維７を予め一定寸法に切断しておくものであ
る。 In this second embodiment, a pair of upper and lower roll-shaped groove cutting tools 4 is provided in front of the first processing tool 2', and this groove cutting tool 4 has grooves perpendicular to the longitudinal direction of the material 1' on its outer periphery. It has a cutting edge 15 and forms grooves 16 at predetermined intervals in the material 1' to be supplied to the cutting process.
This groove 16 is formed to be the same as or deeper than the cutting position of the cutting blade part 9, and is used to cut the steel fiber 7 obtained by cutting and cutting into a predetermined size in advance.
この第２実施例では、素材１′の各面側から多
数本の鋼繊維７を切取れるので、平板状素材１′
に対してその一面のみから、又多角状ブロツク素
材の三面以上の面から同時に鋼繊維に切り取つた
りすることができる。その上に、切り取る鋼繊維
を溝切具４で予め切断しておくことができ、鋼短
繊維の製造が容易になる。 In this second embodiment, since a large number of steel fibers 7 can be cut from each side of the material 1', the flat material 1'
The steel fiber can be cut from only one side of the polygonal block material, or from three or more sides of the polygonal block material at the same time. Moreover, the steel fibers to be cut out can be cut in advance with the groove cutter 4, which facilitates the production of short steel fibers.
コーナ部が切り取られた素材１は面取りが為さ
れた形状であるので、他の目的のために使用でき
るが、前記第２実施例の方法で更に鋼繊維を得る
こともできる。 Since the material 1 with the corners cut off has a chamfered shape, it can be used for other purposes, and steel fibers can also be obtained by the method of the second embodiment.
以上詳述した本発明によれば、多数の突起状切
削刃部９を連続的に列設した第１加工具２で、素
材１表面を切削して線状物を削り取つた後、刃部
３ａが１本線状となつた第２加工具３で切削する
ので、第１加工具２が削り残した多数の突条部８
をその断面形状のまま容易に削り取ることがで
き、１本線状の刃部３ａであつても突起状切削刃
部９と略同様な断面形状の線状物を得ることが可
能となり、歩留り率が高く、刃部の加工及び研磨
等が面倒で且つ高価で切削抵抗が大きい第１加工
具２を使用する必要がなく、製造及び設備のコス
トダウンを図ることができる。 According to the present invention described in detail above, the first processing tool 2 in which a large number of protruding cutting blade parts 9 are continuously arranged is used to cut the surface of the material 1 and scrape off the linear object, and then the blade part 3a is cut with the second processing tool 3 in the form of a single line, so there are many protrusions 8 left uncut by the first processing tool 2.
can be easily scraped off with its cross-sectional shape unchanged, and even with a single linear blade portion 3a, it is possible to obtain a linear product with approximately the same cross-sectional shape as the protruding cutting blade portion 9, and the yield rate is increased. There is no need to use the first processing tool 2, which is expensive, requires troublesome processing and polishing of the blade part, is expensive, and has a large cutting resistance, and it is possible to reduce manufacturing and equipment costs.
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は切削工程を示す夫々断面
側面図と断面正面図、第２図Ａ，Ｂは切断工程を
示す夫々断面図と断面正面図、第３図はデフオー
メーシヨン用ローラの１例を示す断面側面図、第
４図は本発明の第１実施例を示し、第４図Ａは全
体断面側面図、第４図Ｂは切削工程の断面正面
図、第４図Ｃは切断工程の断面正面図である。
１……素材、２……第１加工具（切削具）、３
……第２加工具（切断具）、７……鋼繊維、８…
…突条部。
1 and 2 show a first embodiment of the present invention, FIGS. 1A and 1B are a sectional side view and a sectional front view showing the cutting process, respectively, and FIGS. 2A and 2B are sectional views showing the cutting process. 3 is a sectional view and a sectional front view, FIG. 3 is a sectional side view showing an example of a defamation roller, FIG. 4 is a first embodiment of the present invention, and FIG. 4A is an overall sectional side view. 4B is a cross-sectional front view of the cutting process, and FIG. 4C is a cross-sectional front view of the cutting process. 1...Material, 2...First processing tool (cutting tool), 3
...Second processing tool (cutting tool), 7...Steel fiber, 8...
...projection.
Claims (1)
第１加工具２で素材１表面を切削して線状物を削
り取る金属繊維の製造方法において、 前記突起状切削刃部９で削り残された素材１表
面の多数の突条８を１本線状の刃部３ａを有する
加工具３で切削して、前記突条部８を線状物に形
成することを特徴とする金属繊維の製造方法。[Scope of Claims] 1. A method for manufacturing metal fiber in which a linear object is removed by cutting the surface of a material 1 with a first processing tool 2 in which a large number of protruding cutting blades 9 are continuously arranged, comprising: A large number of protrusions 8 on the surface of the material 1 left uncut by the cutting blade part 9 are cut with a processing tool 3 having a single linear blade part 3a to form the protrusions 8 into a linear object. Characteristic method for producing metal fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5769783A JPS59182034A (en) | 1983-03-30 | 1983-03-30 | Production method of steel fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5769783A JPS59182034A (en) | 1983-03-30 | 1983-03-30 | Production method of steel fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59182034A JPS59182034A (en) | 1984-10-16 |
| JPS6150738B2 true JPS6150738B2 (en) | 1986-11-05 |
Family
ID=13063128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5769783A Granted JPS59182034A (en) | 1983-03-30 | 1983-03-30 | Production method of steel fibers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59182034A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831917B2 (en) * | 1975-04-14 | 1983-07-09 | スミスクライン・ベツクマン・コ−ポレイシヨン | Microbial culture device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831917U (en) * | 1981-08-19 | 1983-03-02 | 株式会社神戸製鋼所 | Steel wool cutting equipment |
-
1983
- 1983-03-30 JP JP5769783A patent/JPS59182034A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831917B2 (en) * | 1975-04-14 | 1983-07-09 | スミスクライン・ベツクマン・コ−ポレイシヨン | Microbial culture device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59182034A (en) | 1984-10-16 |
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