JPH0770353A - Production of porous sinter - Google Patents
Production of porous sinterInfo
- Publication number
- JPH0770353A JPH0770353A JP5251208A JP25120893A JPH0770353A JP H0770353 A JPH0770353 A JP H0770353A JP 5251208 A JP5251208 A JP 5251208A JP 25120893 A JP25120893 A JP 25120893A JP H0770353 A JPH0770353 A JP H0770353A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- pellets
- plastic powder
- sintering
- inorganic
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 239000008188 pellet Substances 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 7
- 239000010954 inorganic particle Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 229910010272 inorganic material Inorganic materials 0.000 description 4
- 239000011147 inorganic material Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000001715 Lentinula edodes Nutrition 0.000 description 1
- 240000000599 Lentinula edodes Species 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、セラミック等の無機質
と、ポリプロピレンあるいはＡＢＳ樹脂等のプラスチッ
ク粉体との熱融着による多孔性焼結体の製造方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a porous sintered body by heat-sealing an inorganic material such as ceramics and a plastic powder such as polypropylene or ABS resin.
【０００２】[0002]
【従来の技術】従来より、例えばダイセル化学工業株式
会社のパールコン（商標名）や、株式会社化研のフィル
タレン（商標名）の様に、高融点のプラスチック粒子の
表面を低融点のプラスチックで被覆した素材を型内に入
れ、圧縮状態で加熱して焼結したものが知られている。2. Description of the Related Art Conventionally, for example, the surface of high melting point plastic particles is made of a low melting point plastic such as Pearlcon (trademark) of Daicel Chemical Industry Co., Ltd. and Filteren (trademark) of Kaken Co., Ltd. It is known that a coated material is put in a mold, heated in a compressed state and sintered.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記焼
結体の製造方法は、素材がプラスチック単体である為、
焼結温度の選定や時間等のコントロールが非常に困難で
あると同時に、万一焼結温度の選定や時間等のコントロ
ールを間違えると、単なるプラスチックの固体となり問
題があった。又、この問題を解決するためには、非常に
長時間を費やさなければならず生産効率からみて非能率
的であった。However, in the above method for producing a sintered body, the material is a simple substance of plastic,
It is very difficult to select the sintering temperature and control the time. At the same time, if the mistake is made in the selection of the sintering temperature or the control of the time, it will be a mere plastic solid. Further, in order to solve this problem, it took a very long time, which was inefficient in terms of production efficiency.
【０００４】本発明は上記事情に鑑みてなされたもの
で、素材に無機質を使用する事によって焼結温度の選定
や時間等のコントロールが楽で、かつ製造時間も大巾に
短縮でき生産能率のアップとなる焼結方法を提供するこ
とを目的としたものである。The present invention has been made in view of the above circumstances. By using an inorganic material as a material, it is easy to select the sintering temperature and control the time, and the manufacturing time can be drastically shortened to improve the production efficiency. The purpose of the present invention is to provide an improved sintering method.
【０００５】[0005]
【課題を解決するための手段】本発明は前記の課題を図
ったもので、無機質からなる粒状体の表面に、該粒状体
よりも微細でかつ前記粒状体よりも低融点のプラスチッ
ク粉体を予め熱融着してペレットとし、所要量のペレッ
トを成形型内でプラスチック粉体の溶融温度まで加熱す
る事により、ペレット間でプラスチック粉体を無機質粒
状体の表面に再融着させる事を特徴とするものである。Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and a plastic powder finer than the granular body and having a lower melting point than the granular body is provided on the surface of the granular body made of an inorganic substance. It is characterized by re-fusing the plastic powder to the surface of the inorganic granules between the pellets by heating the required amount of pellets to the melting temperature of the plastic powder in the molding die in advance by heat-sealing into pellets. It is what
【０００６】[0006]
【作用】本発明の焼結体方法は、素材に溶け難い例えば
セラミック等の無機質の粒状体を使用し、該表面に前記
粒状体より微細でかつ比較的融点温度の低いポリエチレ
ン（ＰＥ）やポリプロピレン（ＰＰ）等のプラスチック
粉体を予め融着させておき、これ等を所定の成形型内に
充填して蓋をし、プラスチック粉体の溶融温度まで、ヒ
ーター等で加熱するのである。In the sintered body method of the present invention, an inorganic granular material such as ceramic which is difficult to dissolve in the material is used, and polyethylene (PE) or polypropylene finer than the granular material and having a relatively low melting point temperature is used on the surface thereof. Plastic powder such as (PP) is previously fused, and these are filled in a predetermined molding die and covered with a lid, and heated to the melting temperature of the plastic powder with a heater or the like.
【０００７】[0007]
【実施例】以下、本発明の実施例を添付図面で詳細に説
明する。図１は、ペレットの拡大断面図で、セラミッ
ク、ガラスあるいは鉄等の無機質の粒状体１の表面に、
前記粒状体１よりも微細で該粒状体１よりも低融点のプ
ラスチック粉体２を前記粒状体１に熱融着し、ペレット
３を形成するのである。プラスチック粉体２としては、
ポリエチレンやポリプロピレン等が一般的で、その場合
の融点温度は、ポリエチレンが約１６０℃、ポリプロピ
レンが約２００℃である。次に図２は、ペレット３を成
形型４内で焼結する状態を示す断面図である。ここで所
要量の前記ペレット３を所定の成形型４内に充填し、蓋
５をした後、ヒーター６等で加熱することにより前記成
形型４内のペレット３同志が再融着される。本発明で
は、素材である無機質の粒状体１と、プラスチック粉体
２との間にかなりの融点差があるため、焼結温度の選定
や時間等のコントロールが楽なので、製造時間が大幅に
短縮され、生産能率が向上する。尚、焼結方法によって
円筒、平板、球型、円錐形等いろいろな形状、寸法にも
成形することが可能である。又、素材としての無機質に
軽石等の多孔体の材料を使用すれば、空気あるいは水分
をより多く吸注入することができ、椎茸栽培等に適した
多孔体を得ることができ、逆に非多孔体の材料を使用す
れば、主としてパルプモールドの型材として最適な多孔
体を得ることができる。Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is an enlarged cross-sectional view of a pellet, showing the surface of an inorganic granular material 1 such as ceramic, glass or iron.
A plastic powder 2 finer than the granular body 1 and having a lower melting point than the granular body 1 is heat-sealed to the granular body 1 to form pellets 3. As the plastic powder 2,
Polyethylene, polypropylene, etc. are common, and the melting point temperature in that case is about 160 ° C. for polyethylene and about 200 ° C. for polypropylene. Next, FIG. 2 is a sectional view showing a state in which the pellet 3 is sintered in the molding die 4. Here, a required amount of the pellets 3 is filled in a predetermined molding die 4, the lid 5 is covered, and then the pellets 3 in the molding die 4 are re-fused by heating with a heater 6 or the like. In the present invention, since there is a considerable difference in melting point between the inorganic granular material 1 as the material and the plastic powder 2, it is easy to select the sintering temperature and control the time, so that the manufacturing time is greatly reduced. Therefore, the production efficiency is improved. It should be noted that various shapes and sizes such as a cylinder, a flat plate, a sphere, and a cone can be formed by the sintering method. Further, if a porous material such as pumice is used as the inorganic material, more air or moisture can be sucked and injected, and a porous material suitable for shiitake cultivation can be obtained, and conversely non-porous. By using the body material, it is possible to obtain the most suitable porous body mainly as a mold material of the pulp mold.
【０００８】[0008]
【発明の効果】以上の説明から明らかな様に、本発明は
次の様な実用上優れた効果を奏する。 （１）無機質とプラスチックとの融点差を利用したた
め、焼結温度の選定や時間等のコントロールが楽であ
る。 （２）そのため、製造時間が大幅に短縮され、生産能率
が向上し非常に経済的である。As is apparent from the above description, the present invention has the following practically excellent effects. (1) Since the difference in melting point between the inorganic material and the plastic is used, it is easy to select the sintering temperature and control the time. (2) Therefore, the manufacturing time is greatly shortened, the production efficiency is improved, and it is very economical.
【図１】ペレットの拡大断面図である。FIG. 1 is an enlarged sectional view of a pellet.
【図２】ペレットを成形型内で焼結する状態を示す断面
図である。FIG. 2 is a cross-sectional view showing a state in which pellets are sintered in a molding die.
１・・・・粒状体 ２・・・・プラスチック粉体 ３・・・・ペレット ４・・・・成形型 ５・・・・蓋 ６・・・・ヒーター 1 ... ・ Granular body 2 ・ ・ ・ ・ Plastic powder 3 ・ ・ ・ ・ ・ ・ Pellet 4 ・ ・ ・ ・ Molding die 5 ・ ・ ・ ・ Lid 6 ・ ・ ・ ・ Heater
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 23:00 55:02 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI technical display area // B29K 23:00 55:02
Claims (1)
体よりも微細でかつ前記粒状体よりも低融点のプラスチ
ック粉体を予め熱融着してペレットとし、所要量のペレ
ットを成形型内でプラスチック粉体の溶融温度まで加熱
する事により、ペレット間でプラスチック粉体を無機質
粒状体の表面に再融着させる事を特徴とする多孔性焼結
体の製造方法。1. A plastic powder finer than the granular body and having a melting point lower than that of the granular body is heat-bonded in advance to the surface of the granular body made of an inorganic substance to form pellets, and a required amount of pellets is formed in a molding die. A method for producing a porous sintered body, characterized in that the plastic powder is re-fused on the surface of the inorganic granular material between the pellets by heating to the melting temperature of the plastic powder inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5251208A JPH0770353A (en) | 1993-09-01 | 1993-09-01 | Production of porous sinter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5251208A JPH0770353A (en) | 1993-09-01 | 1993-09-01 | Production of porous sinter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0770353A true JPH0770353A (en) | 1995-03-14 |
Family
ID=17219311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5251208A Pending JPH0770353A (en) | 1993-09-01 | 1993-09-01 | Production of porous sinter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0770353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102804466B1 (en) * | 2023-11-24 | 2025-05-13 | 솔믹스 주식회사 | Method of Manufacturing Sintered Body and Quartz Glass Parts |
-
1993
- 1993-09-01 JP JP5251208A patent/JPH0770353A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102804466B1 (en) * | 2023-11-24 | 2025-05-13 | 솔믹스 주식회사 | Method of Manufacturing Sintered Body and Quartz Glass Parts |
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