JPS62252609A - Production of multihole aggregated extrudate - Google Patents
Production of multihole aggregated extrudateInfo
- Publication number
- JPS62252609A JPS62252609A JP9747586A JP9747586A JPS62252609A JP S62252609 A JPS62252609 A JP S62252609A JP 9747586 A JP9747586 A JP 9747586A JP 9747586 A JP9747586 A JP 9747586A JP S62252609 A JPS62252609 A JP S62252609A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- extruded material
- cross
- sectional shape
- pipe
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 62
- 238000001125 extrusion Methods 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Extrusion Of Metal (AREA)
- Metal Extraction Processes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、例えば熱交換器用チューブ材、通信ワイヤ
ー等に使用される主として金属製の多孔集合押出材、特
にアルミニウム製の多孔集合押出材の製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing a porous aggregated extruded material mainly made of metal, particularly a porous aggregated extruded material made of aluminum, which is used, for example, as a tube material for a heat exchanger, a communication wire, etc. Regarding.
なお、この明細書において、アルミニウムの語は、その
合金を含む意味において用いられる。In this specification, the term aluminum is used to include its alloys.
従来の技術と問題点
押出加工によって内部に中空部を有するアルミニウム押
出材を得る場合、その中空部の数、配置、密度によって
成形上の制限を受ける。即ち、とくに細い多数の中空部
を高密度分布に有するような押出材は、雄型ダイスのマ
ンドレル部の破損のおそれが大であり、かつ中空部の周
りにおける押出し材料の流れが悪いものとなるため、実
際上押出成形が著しく困難ないし不可能となる。BACKGROUND ART AND PROBLEMS When obtaining an aluminum extruded material having internal hollow portions by extrusion processing, there are limitations in forming the material depending on the number, arrangement, and density of the hollow portions. In other words, an extruded material that has a large number of particularly narrow hollow parts distributed in a high density has a high risk of damaging the mandrel part of the male die, and the flow of the extruded material around the hollow parts is poor. This makes extrusion molding extremely difficult or impossible in practice.
しかしながら、一方において特殊な熱交換器とか通信ワ
イヤー等の用途においては、可及的多数の細い中空部を
貫通状態に有する多孔長尺材の提供が望まれるところで
あり、従来の押出成形技術ではかかる要請に満足に対応
し得なかったのが実情である。However, on the other hand, in applications such as special heat exchangers and communication wires, it is desired to provide a porous long material having as many thin hollow parts as possible in a penetrating state, and conventional extrusion molding technology cannot do this. The reality is that we were unable to respond satisfactorily to the request.
而して、この発明は、能率的な押出成形技術を利用しな
がら、所要の多数の中空部を備えた押出材を、高能率か
つ簡易に製造しうる方法を提供することを目的とする。Therefore, an object of the present invention is to provide a method that can easily and efficiently produce an extruded material having a required number of hollow parts using efficient extrusion molding technology.
問題点を解決する為の手段
この発明は、上記の目的において基本的には、簡易な押
出成形を可能とする数個以下の程度の少数の中空部を備
えた中空単位押出材を予め押出成形し、これを段数本引
揃え状態に集合させかつ一体化して、所要数の中空部を
備えた集合押出材を得ようとするものである。Means for Solving the Problems For the above-mentioned purpose, the present invention basically involves pre-extrusion molding of a hollow unit extruded material having a small number of hollow parts of several or less to enable simple extrusion molding. Then, by assembling these in a number of stages in a state of alignment and integrating them, it is intended to obtain a collective extruded material having a required number of hollow parts.
即ち、この発明は、工ないし複数個の中空部を有する単
位押出材の複数本を引揃えて束状となし、この収束物に
長さ方向の捻りを与えて一体化することを特徴とする多
孔集合押出材の製造方法を要旨とする。That is, the present invention is characterized in that a plurality of unit extruded materials each having a plurality of hollow parts are aligned to form a bundle, and the bundle is twisted in the length direction to be integrated. The gist is a method for manufacturing a porous aggregated extruded material.
上記の単位押出材は、最低１つの中空部を備えたもので
あることをもって足りるが、この発明による利点を充分
に発揮するためには少なくとも２個以上で、数個程度の
中空部を存するものに成形するのが有利である。It is sufficient for the above unit extruded material to have at least one hollow part, but in order to fully exhibit the advantages of this invention, it is necessary to have at least two or more hollow parts, and several hollow parts. It is advantageous to form the
単位押出材の断面形状は、これも特に限定されるもので
はないが、その複数本を引揃え状態に集合させたさい、
それらの相互間に余計な隙間がなるべく生じないような
形状を選択することが望ましい。このような断面形状の
有利な形態は、後述の実施例によって例示されるところ
であるが、その基本的な好ましい１つの断面形状として
は、実施例１〜２のものの如く、複数個の同一直径の真
円断面のパイプ部を、二次元または三次元配列の平行状
態に有し、かつ隣接するパイプ部間の外面が該パイプ部
の外周面に適合する円弧状凹面に形成された断面形状の
ものとすることが推奨される。そして、この場合、上記
凹面に順次隣り合う単位押出材のパイプ部を嵌合状態に
して複数本の単位押出材を引き揃え状態にするものとす
る。または、後掲の実施例３〜４に示すように、断面を
多角形とする複数個の中空角柱部を平行状態に有して、
それらの外周面の１ないし複数の平面部を相互に連続さ
せた断面形状のものとする。そして、順次隣り合う単位
押出材の相互を、その外周面の平面部どおしで密接させ
て引揃え状態にするものとすることが推奨される。The cross-sectional shape of the unit extruded material is not particularly limited, but when a plurality of them are assembled in a lined state,
It is desirable to select a shape that creates as few unnecessary gaps between them as possible. Advantageous forms of such a cross-sectional shape will be exemplified by the examples described below, but one basic preferred cross-sectional shape is a cross-sectional shape of a plurality of pieces of the same diameter, as in Examples 1 and 2. A pipe having a perfect circular cross section arranged in parallel in a two-dimensional or three-dimensional arrangement, and having a cross-sectional shape in which the outer surface between adjacent pipe parts is formed into an arcuate concave surface that conforms to the outer peripheral surface of the pipe part. It is recommended that In this case, the pipe portions of the unit extrusions successively adjacent to the concave surface are brought into a fitted state so that the plurality of unit extrusions are aligned. Alternatively, as shown in Examples 3 and 4 below, a plurality of hollow prismatic sections each having a polygonal cross section are arranged in parallel,
One or more planar portions of their outer circumferential surfaces have a mutually continuous cross-sectional shape. It is recommended that adjacent unit extruded materials are brought into close contact with each other on the flat surfaces of their outer circumferential surfaces so that they are aligned.
また、複数本の押出材を束状に一体化する方法として、
この発明においては、単位押出材を所要本数引き揃えて
集合させた状態において、この収束物に長さ方向の捻り
を与えることによリ、単位押出材相互を絡み合わせて分
離不能に結合させる方法を採用する。もちろん、この捻
りによる一体化法に加えて、加熱処理により単位押出材
相互に金属間接合を生じさせ、あるいはまた引抜き加工
を施して同様に金属間接合を生じさせる等の方法を併用
しても良い。捻回角度は、単位押出材相互の良好な一体
化をはかるためには、収束物の長さに拘らず少なくとも
２７０″をこえ、更に好ましくは３６０”をこえるもの
とすることが望ましい。In addition, as a method of integrating multiple extruded materials into a bundle,
In this invention, in a state in which a required number of unit extrusions are aligned and assembled, the unit extrusions are intertwined with each other and bonded inseparably by giving a longitudinal twist to this aggregate. Adopt. Of course, in addition to this method of integration by twisting, methods such as heat treatment to create metal-to-metal bonding between unit extrusions, or drawing processing to similarly create metal-to-metal bonding may also be used. good. In order to ensure good integration of the unit extrusions, the twisting angle is desirably at least over 270'', more preferably over 360'', regardless of the length of the converged object.
実施例
実施例１
この実施例は、第１図に示すような断面形状の多孔集合
押出材（１）をつくるものである。Examples Example 1 In this example, a porous aggregated extruded material (1) having a cross-sectional shape as shown in FIG. 1 was manufactured.
この多孔集合押出材（１）は、第２図（イ）に示される
ような複数個の中空部（３）を備えた単位押出材（２）
の複数本と、必要に応じて付加される同図（ロ）に示さ
れるような単一の中空部（３゛）を有する単一押出パイ
プ（４）との集合体からなる。上記単位押出材（２）は
、第２図に鎖線で示されるように中央部に存在が観念さ
れる１つの真円のパイプ部（５ａ）を中心にして、その
外周に３つの同径のパイプ部（５ｂ ） （５ｃ ）
（５ｄ ）が相互間に１２０度の角度をもって放射
状に配置されると共に、隣接するパイプ部間の外面が該
パイプ部の外周面に適合する円弧状凹面（６）に形成さ
れた断面形状を有するものである。そして、この複数本
の単位押出材（２）が、上記凹面（６）に順次隣り合う
単位押出材（２）の外側のパイプ部（５ｂ ） （５
ｃ ） （５ｄ ）の１つを嵌合状態にして順次引き
揃えられ集合されると共に、外周部に生じる上記凹面（
６）部分を含む大きな凹所に必要に応じて単一押出パイ
プ（４）を嵌め込んで集合状態とし、かつそれらの相互
を接合一体化して所期の多孔集合押出型材（１）となさ
れる。This porous aggregated extruded material (1) is a unit extruded material (2) having a plurality of hollow parts (3) as shown in Fig. 2 (a).
It consists of a plurality of pipes, and a single extruded pipe (4) having a single hollow part (3') as shown in FIG. The unit extruded material (2) has three pipes of the same diameter around the center, with one perfect circular pipe part (5a) that is supposed to exist in the center as shown by the chain line in Fig. 2. Pipe part (5b) (5c)
(5d) are arranged radially at an angle of 120 degrees between each other, and the outer surface between adjacent pipe sections has a cross-sectional shape formed into an arcuate concave surface (6) that fits the outer peripheral surface of the pipe section. It is something. Then, the plurality of unit extruded materials (2) are connected to the outer pipe portion (5b) (5
c) One of (5d) is brought into the fitted state, and the concave surface (5d) formed on the outer periphery is
6) If necessary, fit a single extruded pipe (4) into a large recess containing the parts to form an assembled state, and then join and integrate them to form the desired porous assembled extruded shape material (1). .
上記の多孔集合押出材（１）の製造は、予め押出成形し
た単位押出材（２）及び単一押出パイプ（４）の所定寸
法に切断したものを、所定本数平行状に引き揃え、かつ
要すればそれらの外周をバンド部材等で仮に束縛して収
束物としたのち、捻回機のクランパーに両端部を掴持せ
しめて所要角度の捻りを付与することにより、単位押出
相互を分離不能に絡合せしめ一体化することによって行
う。The above-mentioned multi-hole collective extrusion material (1) is produced by arranging a predetermined number of unit extrusion materials (2) and single extrusion pipes (4) cut into predetermined dimensions in parallel, and as required. Then, the outer periphery of these pieces is temporarily bound with a band member etc. to form a converged object, and then both ends are gripped by the clamper of the twisting machine and twisted at the required angle, so that the unit extrusions cannot be separated from each other. This is done by intertwining and integrating.
なお、上記のような多孔集合押出材（１）は、アルミニ
ウム材料、例えばＡｌ１００合金をもって良好に製造す
ることができるが、これに限定されるものではなく、他
の金属あるいは合成樹脂材料をもって製造することも可
能である。The porous aggregated extruded material (1) as described above can be successfully manufactured using an aluminum material, for example, an Al100 alloy, but is not limited thereto, and may be manufactured using other metals or synthetic resin materials. It is also possible.
実施例２
この実施例は、第４図（イ）に示されるように、単位押
出材（１２）の断面形状を、３つの同径の真円パイプ部
（１５ａ ） （１５ｂ ） （１５ｃ ）がそれ
らの中心を正三角形の各頂点に位置させた三次元の平行
状配置に並べられ、かつ隣接するパイプ部相互間の外面
が前記同様に円弧状凹面（１６）に形成された３ホール
の異形断面形状としたものである。そして、この単位押
出材（１２）の複数本を引き揃え、相互密接状態に総合
一体化して第４図（ロ）に示されるような多孔集合押出
材（１１）に製作する。その他は実施例１と同様である
。Example 2 In this example, as shown in FIG. 4(a), the cross-sectional shape of the unit extruded material (12) is divided into three perfect circular pipe parts (15a), (15b), and (15c) of the same diameter. An unusual shape of three holes arranged in a three-dimensional parallel arrangement with their centers located at each vertex of an equilateral triangle, and the outer surfaces between adjacent pipe parts are formed into arc-shaped concave surfaces (16) as described above. It has a cross-sectional shape. Then, a plurality of unit extruded materials (12) are aligned and integrated in a mutually intimate state to produce a porous aggregated extruded material (11) as shown in FIG. 4(B). The rest is the same as in Example 1.
実施例３
この実施例は、単位押出材を集合させた状態においてそ
れらの相互間に無駄な空隙部を生ぜしめないようにした
ものであり、そのために、単位押出材（２２）の断面形
状が正六角形を基準とするものとなされている。即ち第
５図（イ）に示されるように断面を正六角形とする１つ
の中空角柱部（２５ａ ）を中心として、その周りに等
間隔に３つの同形断面の中空角柱部（２５ｂ ’）（２
５ｃ ） （２５ｄ ）が配置され、それらの外周面
の１つの平面部どおしが連続したものとなされた断面形
状に形成されているものである。そして、この単位押出
材（２２）の集合により、あるいは要すれば更にこれに
単一の中空部のみを備えた単一押出角柱材（２４）を外
周部に適宜付加的に組合わせて、前記同様の方法で収束
し捻回して一体化することにより、第５図（ロ）に示す
ような多孔集合押出材（２１）に製作するものである。Example 3 In this example, unnecessary voids are not created between the unit extrusions when they are assembled, and for this purpose, the cross-sectional shape of the unit extrusions (22) is It is based on a regular hexagon. That is, as shown in FIG. 5(a), centering on one hollow prismatic part (25a) with a regular hexagonal cross section, three hollow prismatic parts (25b') (2
5c) (25d) are arranged, and one plane part of the outer peripheral surface thereof is formed in a continuous cross-sectional shape. Then, by aggregating these unit extruded materials (22), or if necessary, additionally combining a single extruded prismatic material (24) having only a single hollow portion on the outer periphery, the above-mentioned By converging, twisting, and integrating in the same manner, a multi-hole aggregated extruded material (21) as shown in FIG. 5(b) is manufactured.
実施例４
この実施例は、前記実施例３と同じく単位押出材（３２
）の断面形状を正六角形を基本とするものとしながら、
第６図（イ）に示すように、正六角形の３つの中空角柱
部（２５ａ ） （２５ｂ ）（２５ｃ ）が、それ
らの各中心を正三角形の頂点に配置した断面形状のもの
に押出成形されるものである。従って、この単位押出材
（３２）の複数本を引揃え状態に集合させ、捻りを付与
して一体化することにより、第６図（ロ）に示されるよ
うな多孔集合押出材（３１）に製作する。その他は実施
例３の場合と同様であり、相当部分を同一符号で示す。Example 4 This example uses a unit extrusion material (32
) is based on a regular hexagonal cross-section,
As shown in FIG. 6(a), three hollow prism portions (25a), (25b), and (25c) of regular hexagonal shape are extruded into a cross-sectional shape with each center located at the vertex of an equilateral triangle. It is something that Therefore, by assembling a plurality of unit extruded materials (32) in a lined state and twisting them to integrate them, a porous collective extruded material (31) as shown in FIG. 6(b) can be obtained. To manufacture. The rest is the same as in the third embodiment, and corresponding parts are designated by the same reference numerals.
発明の効果
この発明によれば上述のように、１ないし複数個の中空
部を備えた単位押出材の複数本を引揃え、集合状態に捻
合一体化して、結果的に断面に多数の中空部を備えた中
空材を得るものであるから、通常の押出し成形法のみで
は側底成形が不可能であるような多数の中空部をしかも
比較的高密度な分布にもった長尺の材料を製作すること
ができる。また、単位押出材相互の収束一体化を、その
収束物に長さ方向の捻りを付与することによって行うの
で、製造操作が簡単であり、各単位押出材の製造能率が
良好であることも相俟って高能率にかつ廉価に所期の多
孔集合押出材を得ることができる。Effects of the Invention According to the present invention, as described above, a plurality of unit extrusions each having one or more hollow portions are aligned and twisted into an assembled state, resulting in a large number of hollow portions in the cross section. Since the purpose is to obtain a hollow material with a relatively high density distribution, it is possible to obtain a long material with a large number of hollow parts and a relatively high density distribution, which would be impossible to form at the side bottom using normal extrusion molding methods alone. It can be manufactured. In addition, since the unit extrusions are converged and integrated by giving the converged material a twist in the length direction, the manufacturing operation is simple and the manufacturing efficiency of each unit extrusion is good. As a result, the desired porous aggregated extruded material can be obtained with high efficiency and at low cost.
第１図はこの発明の第１実施例による製品の斜視図、第
２図（イ）（ロ）はそれに用いられている単位押出材と
単一押出パイプの各断面図である。第３図（イ）（ロ）
はこの発明の第２実施例による製品とこれに用いられて
いる単位押出材の各断面図、第４図（イ）（ロ）はこの
発明の第３実施例による製品とそれに用いられている単
位押出材の各断面図、第５図はこの発明の第４実施例に
よる製品とそれに用いられている単位押出材の各断面図
である。
（１） （１１） （２１） （３１）・・・多
孔集合押出材、（２） （１２） （２２） （
３２）・・・単位押出材、（５ａ）（５ｂ）（５ｃ）（
５ｄ）（１５ａ）（１５ｂ）（１５ｅ）・・・パイプ部
、（６） （１Ｇ）・・・円弧状凹面、（２５ａ ）
（２５ｂ ） （２５ｃ ） （２５ｄ ）
（３５ａ ）（３５ｂ ） （３５ｃ ） −・・
中空角柱部。
以上
第１図
第３図
ｔ＜ｑ ７ ｂ ３
第４図
第５図FIG. 1 is a perspective view of a product according to a first embodiment of the present invention, and FIGS. 2(a) and 2(b) are sectional views of a unit extruded material and a single extruded pipe used therein. Figure 3 (a) (b)
4(a) and 4(b) are cross-sectional views of a product according to a second embodiment of the present invention and the unit extruded material used therein, and FIGS. FIG. 5 is a cross-sectional view of a product according to a fourth embodiment of the present invention and a unit extrusion used therein. (1) (11) (21) (31)... Porous aggregated extruded material, (2) (12) (22) (
32) ... Unit extruded material, (5a) (5b) (5c) (
5d) (15a) (15b) (15e)... Pipe part, (6) (1G)... Arc-shaped concave surface, (25a)
(25b) (25c) (25d)
(35a) (35b) (35c) -...
Hollow prismatic part. Above Figure 1 Figure 3 t<q 7 b 3
Figure 4 Figure 5
Claims (8)
数本を引揃えて束状となし、この収束物に長さ方向の捻
りを与えて一体化することを特徴とする多孔集合押出材
の製造方法。(1) Multi-hole collective extrusion, which is characterized by aligning a plurality of unit extruded materials having one or more hollow parts to form a bundle, and twisting the bundled material in the length direction to integrate it. Method of manufacturing wood.
範囲第１項記載の多孔集合押出材の製造方法。(2) A method for manufacturing a porous aggregate extruded material according to claim 1, wherein the unit extruded material is an aluminum material.
イプ部を平行状態に有し、かつ隣接するパイプ部間の外
面を該パイプ部の外周面に適合する円弧状凹面とする断
面形状に押出成形し、上記凹面に順次隣り合う単位押出
材のパイプ部を嵌合状態にして複数本の単位押出材を引
揃え状態に集合せしめる特許請求の範囲第１項または第
２項に記載の多孔集合押出材の製造方法。(3) The unit extruded material has a plurality of parallel pipe sections with the same diameter and a perfect circular cross section, and the outer surface between adjacent pipe sections is an arcuate concave surface that fits the outer peripheral surface of the pipe section. According to claim 1 or 2, the pipe portions of the unit extrusions are extruded into a cross-sectional shape, and the pipe portions of the unit extrusions successively adjacent to the concave surface are fitted, so that the plurality of unit extrusions are assembled in a lined state. The method for producing the porous aggregated extruded material described above.
の外周に３つのパイプ部が相互間に１２０度の角度をも
って放射状に配置された断面形状のものに形成する特許
請求の範囲第３項記載の多孔集合押出材の製造方法。(4) The unit extruded material is formed into a cross-sectional shape in which three pipe parts are arranged radially around one pipe part at an angle of 120 degrees between them. A method for producing a porous aggregated extruded material according to item 3.
各中心を正三角形の各頂点に配置した断面形状のものに
形成する特許請求の範囲第３項記載の多孔集合押出材の
製造方法。(5) The unit extruded material is a porous aggregated extruded material according to claim 3, which is formed into a cross-sectional shape in which three pipe portions having the same diameter are arranged with their respective centers at respective vertices of an equilateral triangle. Production method.
角柱部を平行状態に有して、それらの外周面の１ないし
複数個の平面部を相互に連続させた断面形状のものに押
出成形し、順次隣り合う単位押出材相互をその外周面の
平面部どおしを密接させた引揃え状態に集合せしめる特
許請求の範囲第１項または第２項に記載の多孔集合押出
材の製造方法。(6) The unit extruded material has a cross-sectional shape that has a plurality of parallel hollow prismatic portions with polygonal cross sections, and one or more flat portions of their outer peripheral surfaces are continuous with each other. The porous aggregated extruded material according to claim 1 or 2, wherein adjacent unit extruded materials are assembled in a aligned state in which the flat parts of their outer peripheral surfaces are brought into close contact with each other. manufacturing method.
角柱部を中心にして、その周りに等間隔に３つの同形断
面の中空角柱部が放射状に配置された断面形状のものに
形成する特許請求の範囲第６項に記載の多孔集合押出材
の製造方法。(7) The unit extruded material is formed into a cross-sectional shape in which three hollow prism parts with the same cross section are arranged radially at equal intervals around one hollow prism part with a regular hexagonal cross section. A method for producing a porous aggregated extruded material according to claim 6.
、それらの各中心を正三角形の頂点に配置した断面形状
のものに形成する特許請求の範囲第６項記載の多孔集合
押出材の製造方法。(8) The unit extruded material is a multi-hole collective extrusion according to claim 6, wherein the unit extrusion material is formed into a cross-sectional shape in which three hollow prism parts each having a hexagonal cross section have their respective centers located at the vertices of an equilateral triangle. Method of manufacturing wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097475A JPH0679738B2 (en) | 1986-04-25 | 1986-04-25 | Method for manufacturing porous aggregate extruded material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097475A JPH0679738B2 (en) | 1986-04-25 | 1986-04-25 | Method for manufacturing porous aggregate extruded material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62252609A true JPS62252609A (en) | 1987-11-04 |
| JPH0679738B2 JPH0679738B2 (en) | 1994-10-12 |
Family
ID=14193318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61097475A Expired - Fee Related JPH0679738B2 (en) | 1986-04-25 | 1986-04-25 | Method for manufacturing porous aggregate extruded material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679738B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166585B (en) * | 2010-12-27 | 2012-08-15 | 常州得一新材料科技有限公司 | Preparation process of multi-strand cutting steel wire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57533A (en) * | 1980-05-31 | 1982-01-05 | Matsushita Electric Works Ltd | Color difference meter |
| JPS58196122A (en) * | 1982-05-12 | 1983-11-15 | Sekisui Prefab Homes Ltd | Manufacture of decorative hardware |
-
1986
- 1986-04-25 JP JP61097475A patent/JPH0679738B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57533A (en) * | 1980-05-31 | 1982-01-05 | Matsushita Electric Works Ltd | Color difference meter |
| JPS58196122A (en) * | 1982-05-12 | 1983-11-15 | Sekisui Prefab Homes Ltd | Manufacture of decorative hardware |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0679738B2 (en) | 1994-10-12 |
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