JPS5933128A - Cylinder for injection molder and extruder - Google Patents

Cylinder for injection molder and extruder

Info

Publication number
JPS5933128A
JPS5933128A JP57143747A JP14374782A JPS5933128A JP S5933128 A JPS5933128 A JP S5933128A JP 57143747 A JP57143747 A JP 57143747A JP 14374782 A JP14374782 A JP 14374782A JP S5933128 A JPS5933128 A JP S5933128A
Authority
JP
Japan
Prior art keywords
cylinder
ceramic
liner
steel
powders
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
Application number
JP57143747A
Other languages
Japanese (ja)
Inventor
Morimichi Tanaka
田中　守通
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP57143747A priority Critical patent/JPS5933128A/en
Publication of JPS5933128A publication Critical patent/JPS5933128A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/62—Barrels or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/224—Extrusion chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Extrusion Of Metal (AREA)

Abstract

PURPOSE:To obtain the titled cylinder suitable for injection molding or extruding ceramic powders, magnetic powders and metal powders, the abrasion resistance and corrosion resistance of which cylinder would not be deteriorated at high temperatures, by mounting a ceramic liner onto an inner surface of a steel cylinder. CONSTITUTION:A liner 1 of a ceramic (e.g. alumina, carbon silicide, silicon nitride, zirconia, etc.) is integrally molded onto the inner circumferential surface of the cylinder main body 2 of carbon steel, chromemolybdenum steel, stainless steel, or the like with the shrink fit rate of the ceramic being 5/1000 to 10/ 1000 thereby obtaining the aimed cylinder. The thickness ratio of the liner 1 to the cylinder main body 2 is preferably 1:2 to 1:30 at the central barrel section of the cylinder.

Description

【発明の詳細な説明】 本発明はプラスチックス、セラミックス、フェライトま
たは希土類磁石に用いられる―粉および・金属粉の射出
・押出成形機に放置備されるシリンダ。DETAILED DESCRIPTION OF THE INVENTION The present invention is a cylinder that is used for plastics, ceramics, ferrite, or rare earth magnets and is left in an injection/extrusion molding machine for powder and metal powder.

の改良に関する。Regarding the improvement of

一般に、この種のシリンダは成形すべき材料がシリンダ
内に組込まれたスクリュウまたはプランジャによってシ
リンダ内を移送される際に、摩擦による摩耗や材料とと
もに添加される有機物の熱分解による腐食を受ける。こ
のためにシリンダ内面を窒化処理したり、硬質の鉄また
は非鉄合金を遠心鋳造により溶着して耐摩耗性と耐食性
が付与されているものの、早期劣化に伴う使用寿命が著
るしく短縮するという問題点を有している。またシリン
ダ内面から発生した摩耗粉や腐食粉が成形・体の中に混
入するど、プラスチックスにおいては。In general, cylinders of this type are subject to corrosion due to frictional wear and thermal decomposition of organic substances added with the material when the material to be formed is transferred through the cylinder by a screw or plunger incorporated in the cylinder. For this purpose, the inner surface of the cylinder is treated with nitriding, or hard iron or non-ferrous alloys are welded by centrifugal casting to provide wear resistance and corrosion resistance, but the problem is that the service life is significantly shortened due to early deterioration. It has points. Also, in plastics, abrasion powder and corrosion powder generated from the inner surface of the cylinder get mixed into the molded body.

頚１気絶組性や耐食性、強度の劣化をもたらす。ま。This results in deterioration of neck 1 stunability, corrosion resistance, and strength. Ma.

た成形物を後工程において焼結されるセラミック。Ceramic is produced by sintering the molded product in a subsequent process.

スや磁粉および金統粉においては、シリンダ内面の摩耗
粉や腐食粉の混入は成形物の焼結性を著る。In the case of steel powder, magnetic powder, and metal powder, the incorporation of abrasion powder or corrosion powder on the inner surface of the cylinder significantly deteriorates the sinterability of the molded product.

しく劣化させ、焼結を不可能にすることもある。。This can cause severe deterioration and make sintering impossible. .

このような理由から、ｉ出・押出シリンダとして。For this reason, it is used as an i-extrusion/extrusion cylinder.

は耐摩耗性と耐食性に冨み、しかも加工性が良く安価で
あるものが望まれる。It is desired that the material has high wear resistance and corrosion resistance, has good workability, and is inexpensive.

本発明は上記した罷条件に鑑み、シリンダ内面４となる
り１部シリンダを炭素鋼、クロム・モリブデ。In view of the above-mentioned failure conditions, the present invention uses carbon steel and chromium molybde for the cylinder inner surface 4 and a portion of the cylinder.

ン鋼、ステンレス銀などの銀製シリンダとし、その内周
ｍ１にアルミナ、炭化珪素、窒化珪紫、ジル。The cylinder is made of silver, such as stainless steel or stainless steel, and its inner circumference m1 is made of alumina, silicon carbide, silicon nitride, or silica.

コニアなどのセラミックス製りイナを装着した射出°押
出成形機用シリンダを提供するものである。The present invention provides a cylinder for an injection extrusion molding machine equipped with an inner made of ceramic such as Conia.

゛これらのライナを形成する材料においては硬さはＨｖ
ｌＯＯＯ〜２８００と従来の金属材料の硬さＨｖｌＯＯ
Ｏ以下。゛The hardness of the materials forming these liners is Hv.
The hardness of conventional metal materials is 100~2800 HvlOO
Below O.

に比して高く耐摩耗性に冨み、化学的に安定で耐４食性
に富み、また熱的にも安定で前記成形においてシリンダ
ーが加熱される温度５０〜４００ｐにおいても耐摩耗性
やｉｉ性のｉ化はほとんど生じない□。−以下、本：発
明を具疹４．１・した図示の実施例、１こつい２．′て
詳述する。第１図においてセラミックス製ライ４す（１
）は鋼製のシリン哀゛采体（２）の内周面に焼ばめ率１
０００分の５ないし１０００分の′１０で焼はめされて
おり、ダイス（３）側の端部でフランジ（４）を一体と
して形成し、ダイス（３）とシリンダ本体外周部にねじ
込まれたフランジ（５）をボルト（６）により締め付け
ることによってダイスとライナの接合ｉ”（７）に加圧
力を縁石させライチ端：部の７レムジ（４）の−面（８
）はシリンダ本体（２）と密層する構造となっている。It is chemically stable and highly resistant to corrosion, and is also thermally stable and has high abrasion resistance and ii properties even at temperatures of 50 to 400p at which the cylinder is heated during the forming process. There is almost no i conversion of □. -Hereinafter, the present invention will be described as follows: 4.1. Illustrated embodiments, 1. Difficulties 2. ' will be explained in detail. In Figure 1, the ceramic lie 4 (1
) is a shrink fit ratio of 1 on the inner peripheral surface of the steel cylindrical mold body (2).
The flange (4) is integrally formed at the end on the die (3) side, and is screwed into the die (3) and the outer periphery of the cylinder body. By tightening (5) with bolts (6), pressure is applied to the joint i'' (7) of the die and liner.
) has a structure in which it is closely layered with the cylinder body (2).

この構造はシリンダ本体（２）とライナ（１）の熱膨張
の差によろずれが生じてもダイスとライナの接、台面（
７）にはすき間が生じないようにしている。成形材料が
投下されるホツパー口（９）はシリンダ本体とライナと
も同軸に開口式れている。This structure allows the die and liner to contact each other even if misalignment occurs due to the difference in thermal expansion between the cylinder body (2) and the liner (1).
7) so that there are no gaps. The hopper port (9) into which the molding material is dropped is opened coaxially with both the cylinder body and the liner.

ライナＣ１）とシリンダ本体（２）の肉厚比は、シリン
ダ中央胴部においてｌ：１０ないし１：３０にし、好ま
しくは１：２０ないし〕：３０にする。これはライすを
構成するセラミックスの熱伝導率が低いので・：′□□
：□’ＩＩＬ　””’Ｉ）ンダ外周面より加熱する方式
の射出・押出成・１１−１：形：：′：に：セ１てはシ
リンダ内周面への熱の伝達を容易・にするため可能なり
゛ぎり′（＋０肉ｙ！ｉ薄くする′、、ことが好ましい
。□ ライナ（１，１は通常の押出成形または泥漿鋳込成形・
・、を行なった後に焼成し、所定あ加工舎行なう。　。The wall thickness ratio between the liner C1) and the cylinder body (2) is from 1:10 to 1:30, preferably from 1:20 to 1:30, in the central body of the cylinder. This is because the thermal conductivity of the ceramics that make up the rice is low:'□□
：□'IIL ``'''I) Injection/extrusion molding method that heats from the outer circumferential surface of the cylinder ・11-1: Shape::': に: SE1 Easily transfers heat to the inner circumferential surface of the cylinder Therefore, it is preferable to make the liner as thin as possible (+0 thickness y!i').
・After performing the above, it is fired and processed in a specified processing facility. .

以上のように本発明にあっては鋼製のシリンダ、　　′
本体内周面にセラミックス製ライ−ｉ一番装糸したも。As described above, in the present invention, the steel cylinder,
The inner circumferential surface of the main body is lined with ceramic Lie-I yarn.

のであるから、セラミコ、クス材の特質力ごら耐摩耗性
及び耐食性に冨み、しかも熱的に極めて安定で。Because of this, it is rich in wear resistance and corrosion resistance, which is similar to the characteristics of ceramic and wood materials, and is also extremely thermally stable.

高温における上記特性の劣化がなく、テラスチッ。There is no deterioration of the above characteristics at high temperatures, making it easy to use on terraces.

クス、セラミ・ツクス、磁粉および金属唆の射出・押出
成形機用シリンダの具備すべき・諸条件を満足・し、そ
の耐久性および信頼性を向上することができる利点を有
する。It satisfies the various conditions that should be met by cylinders for injection/extrusion molding machines made of wood, ceramic, magnetic powder, and metal, and has the advantage of improving its durability and reliability.

【図面の簡単な説明】[Brief explanation of the drawing]

第３１図は本発明の実施例を示し、シリンダとダ。 イスおよびこれらを組立てる部材の断面図である。 ｌ：ライナ、２８シリンダ本体、３：ダイス。 FIG. 31 shows an embodiment of the invention, showing a cylinder and a cylinder. FIG. 3 is a cross-sectional view of the chair and the members used to assemble them. l: liner, 28 cylinder body, 3: die.

Claims (1)

【特許請求の範囲】[Claims] ｍ製シリンダの内面にセラミック製ライナを装着したこ
とを特徴とする射出・押出成形機用シリンダ。A cylinder for injection/extrusion molding machines, characterized by having a ceramic liner attached to the inner surface of the m-made cylinder.
JP57143747A 1982-08-19 1982-08-19 Cylinder for injection molder and extruder Pending JPS5933128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57143747A JPS5933128A (en) 1982-08-19 1982-08-19 Cylinder for injection molder and extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57143747A JPS5933128A (en) 1982-08-19 1982-08-19 Cylinder for injection molder and extruder

Publications (1)

Publication Number Publication Date
JPS5933128A true JPS5933128A (en) 1984-02-22

Family

ID=15346069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57143747A Pending JPS5933128A (en) 1982-08-19 1982-08-19 Cylinder for injection molder and extruder

Country Status (1)

Country Link
JP (1) JPS5933128A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994815U (en) * 1982-12-17 1984-06-27 オリンパス光学工業株式会社 extrusion molding machine
JPS6131719U (en) * 1984-07-27 1986-02-26 日精樹脂工業株式会社 injection cylinder of injection molding machine
JPS6141516A (en) * 1984-08-03 1986-02-27 Hitachi Metals Ltd Plunger for transfer molding machine
JPS61148455U (en) * 1985-02-28 1986-09-12
JPS61241105A (en) * 1985-04-18 1986-10-27 株式会社ノリタケカンパニーリミテド Screw type extruding machine or kneading machine
JPS62137163A (en) * 1985-12-11 1987-06-20 Toshiba Mach Co Ltd Die casting device
JPS6364972A (en) * 1986-09-04 1988-03-23 日本特殊陶業株式会社 Manufacture of silicon nitride sintered body
JPS63102918A (en) * 1986-10-21 1988-05-07 Nippon Yunikaa Kk Die
JPS6387002U (en) * 1986-11-26 1988-06-07
EP0276758A2 (en) * 1987-01-26 1988-08-03 Klöckner Ferromatik Desma GmbH Non-return valve for the plasticising and injection aggregates of injection-moulding machines
JPS6453825A (en) * 1987-08-26 1989-03-01 Mitsuba Mfg Co Ltd Cylinder of screw part of extruder
JPS6490707A (en) * 1987-09-12 1989-04-07 Kloeckner Ferromatik Desma Mixer for isocyanate and polyol
JPH0199809A (en) * 1987-10-12 1989-04-18 Murata Mfg Co Ltd Extrusion molder
JPH01159229A (en) * 1987-12-16 1989-06-22 Sumitomo Electric Ind Ltd Breaker plate for resin extrusion
DE102004024952A1 (en) * 2004-05-21 2005-12-22 Bayerische Motoren Werke Ag Die casting mold assembly with tubular filling chamber, includes readily-replaceable cylindrical bush accepting pressure plunger in tubular filling chamber
JP2009160592A (en) * 2007-12-28 2009-07-23 Nissei Plastics Ind Co Injection cylinder for injection apparatus for metal molding
EP2620238A1 (en) * 2012-01-26 2013-07-31 Bühler AG Casting chamber for a die-casting machine
CN103568274A (en) * 2013-11-01 2014-02-12 苏州泰科尼光伏材料有限公司 EVA (ethylene-vinyl acetate copolymer) adhesive particle heating pipeline
CN107344386A (en) * 2017-07-04 2017-11-14 陕西科技大学 A kind of piezoelectric structured ceramic injection forming machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922466A (en) * 1972-06-21 1974-02-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922466A (en) * 1972-06-21 1974-02-27

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994815U (en) * 1982-12-17 1984-06-27 オリンパス光学工業株式会社 extrusion molding machine
JPS6131719U (en) * 1984-07-27 1986-02-26 日精樹脂工業株式会社 injection cylinder of injection molding machine
JPH0356349Y2 (en) * 1984-07-27 1991-12-18
JPS6141516A (en) * 1984-08-03 1986-02-27 Hitachi Metals Ltd Plunger for transfer molding machine
JPS61148455U (en) * 1985-02-28 1986-09-12
JPH0242368Y2 (en) * 1985-02-28 1990-11-13
JPS61241105A (en) * 1985-04-18 1986-10-27 株式会社ノリタケカンパニーリミテド Screw type extruding machine or kneading machine
JPS62137163A (en) * 1985-12-11 1987-06-20 Toshiba Mach Co Ltd Die casting device
JPS6364972A (en) * 1986-09-04 1988-03-23 日本特殊陶業株式会社 Manufacture of silicon nitride sintered body
JPS63102918A (en) * 1986-10-21 1988-05-07 Nippon Yunikaa Kk Die
JPS6387002U (en) * 1986-11-26 1988-06-07
JPH034483Y2 (en) * 1986-11-26 1991-02-06
EP0276758A2 (en) * 1987-01-26 1988-08-03 Klöckner Ferromatik Desma GmbH Non-return valve for the plasticising and injection aggregates of injection-moulding machines
JPS6453825A (en) * 1987-08-26 1989-03-01 Mitsuba Mfg Co Ltd Cylinder of screw part of extruder
JPS6490707A (en) * 1987-09-12 1989-04-07 Kloeckner Ferromatik Desma Mixer for isocyanate and polyol
JPH0199809A (en) * 1987-10-12 1989-04-18 Murata Mfg Co Ltd Extrusion molder
JPH01159229A (en) * 1987-12-16 1989-06-22 Sumitomo Electric Ind Ltd Breaker plate for resin extrusion
DE102004024952A1 (en) * 2004-05-21 2005-12-22 Bayerische Motoren Werke Ag Die casting mold assembly with tubular filling chamber, includes readily-replaceable cylindrical bush accepting pressure plunger in tubular filling chamber
DE102004024952B4 (en) * 2004-05-21 2008-06-05 Bayerische Motoren Werke Ag Diecast tool
JP2009160592A (en) * 2007-12-28 2009-07-23 Nissei Plastics Ind Co Injection cylinder for injection apparatus for metal molding
JP4627314B2 (en) * 2007-12-28 2011-02-09 日精樹脂工業株式会社 Injection cylinder of metal forming injection equipment
EP2620238A1 (en) * 2012-01-26 2013-07-31 Bühler AG Casting chamber for a die-casting machine
WO2013110485A1 (en) * 2012-01-26 2013-08-01 Bühler AG Casting chamber for diecasting machine
CN103568274A (en) * 2013-11-01 2014-02-12 苏州泰科尼光伏材料有限公司 EVA (ethylene-vinyl acetate copolymer) adhesive particle heating pipeline
CN107344386A (en) * 2017-07-04 2017-11-14 陕西科技大学 A kind of piezoelectric structured ceramic injection forming machine

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