JPS62167249A - Manufacture of ceramic injection molding material - Google Patents

Manufacture of ceramic injection molding material

Info

Publication number
JPS62167249A
JPS62167249A JP61007369A JP736986A JPS62167249A JP S62167249 A JPS62167249 A JP S62167249A JP 61007369 A JP61007369 A JP 61007369A JP 736986 A JP736986 A JP 736986A JP S62167249 A JPS62167249 A JP S62167249A
Authority
JP
Japan
Prior art keywords
roll
injection molding
organic binder
ceramic powder
kneading
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
JP61007369A
Other languages
Japanese (ja)
Inventor
芝井 晃治
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP61007369A priority Critical patent/JPS62167249A/en
Publication of JPS62167249A publication Critical patent/JPS62167249A/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 (技術分野) 本発明はセラミックス射出成形材料の製法に関する。[Detailed description of the invention] (Technical field) The present invention relates to a method for producing ceramic injection molding materials.

(背景技術) セラミックスの射出成形は、現状の技術レベルでは、有
機バインダーを多量(粉100とした場合M量比で30
〜50程度)添加するので、プラスチックの射出成形と
同じ成形性(流動性)を有することが要求される。言い
換えれば、セラミック粉体と有機バインダーを均一に混
練させるかに依存する。現状ではニーダによる混練ニジ
も、ロール混練の場合の方が粉体表面を少ないバインダ
ー量で儒丁ことが容易である。つ19、混線力が大きい
ということである。また、ロール表面の温度を調節しや
すいので、混練温度が制御できる利点がある。(産業技
術センタ発行、倫不建次著、混合混練技術) (発明の目的) 本発明は上記の欠点を改善するために提案されたもので
、セラミックス射出成形材料を製造する方法において、
セラミック粉体と有機バインダーを均一に混練し、かつ
粉体表面に均一にコーティングする製法を提供すること
を目的とする0 (発明の開示〕 この発明は、ロール混練において均一なセラミックス射
出成形材料を作成する点に特徴を有する0 以下、本発明の詳細な説明する0 第1図はこの発明の詳細な説明する図である。
(Background technology) Ceramic injection molding, at the current technological level, requires a large amount of organic binder (30% M ratio when powder is 100%).
~50), so it is required to have the same moldability (fluidity) as plastic injection molding. In other words, it depends on whether the ceramic powder and the organic binder are uniformly kneaded. At present, even when kneading with a kneader, it is easier to mix the powder surface with a small amount of binder when using roll kneading. 19. The crosstalk force is large. Further, since the temperature of the roll surface can be easily adjusted, there is an advantage that the kneading temperature can be controlled. (Published by Industrial Technology Center, written by Kenji Rinfu, Mixing and Kneading Techniques) (Objective of the Invention) The present invention was proposed to improve the above-mentioned drawbacks, and in a method for manufacturing ceramic injection molding materials.
It is an object of the present invention to provide a manufacturing method for uniformly kneading ceramic powder and an organic binder and uniformly coating the powder surface. The present invention will be described in detail below. Figure 1 is a diagram illustrating the present invention in detail.

しかして図に示すように、ホッパー1にセラミック粉体
を充填させ、熱ロール2の間へ落丁。
As shown in the figure, the hopper 1 is filled with ceramic powder, and the particles fall between the hot rolls 2.

熱ロールの両サイドには、有機バインダーの円筒4が熱
ロール2と接触することに工9、熱ロールに有機バイン
ダーが転写され、ホッパ−1から#r丁してくるセラミ
ック粉体と混合拳混練される。バインダー量は、熱ロー
ル表面温度及び熱ロール軸と有機バインダーの軸との距
離。
On both sides of the hot roll, cylinders 4 of organic binder are in contact with the hot roll 2, and the organic binder is transferred to the hot roll and mixed with the ceramic powder coming from the hopper 1. Kneaded. The amount of binder is determined by the surface temperature of the hot roll and the distance between the hot roll axis and the axis of the organic binder.

ホッパーから落下するセラミック粉体の量に工って定ま
る。混練力は、ロール回転数、2つの熱ロール間距離に
工って定まる。また、熱ロール2のみだけで練度が不足
する場合は、後工程の2次熱ロールの調整で練度′t−
調節する。
It is determined by the amount of ceramic powder that falls from the hopper. The kneading force is determined by the number of rotations of the rolls and the distance between the two heated rolls. In addition, if the heat roll 2 alone is insufficient in kneading, adjust the secondary heat roll in the subsequent process to improve the kneading 't-.
Adjust.

有機バインダーとしては、ポリエチレンその他の熱可塑
性樹脂を使用する。特に熱可塑性樹脂であれば何でもよ
い。この有機バインダーは図示の工うに円筒状に加工し
友ものt用いることが好ましい。図中3は軸を示す。
As the organic binder, polyethylene or other thermoplastic resin is used. In particular, any thermoplastic resin may be used. It is preferable to process this organic binder into a cylindrical shape as shown in the figure and use it as a cylindrical shape. 3 in the figure indicates the axis.

熱ロールを使用すると、混練後の材料がロールに付着す
るので、これをロールからはがす友めに、ドクターナイ
フ7を熱ロール2に接触させ、材料をはがし2次ロール
5へと送る。この2次ロール5は、熱ロールと冷却ロー
ルの組合せたものとし、混線材料を練り上げると同時に
、冷却ロールで材料を冷却し、粉砕機(クラッシャー)
6に工9破砕させることによって、クラッシャーの出口
エリセラミックス射出材料ができてくる。
When a hot roll is used, the material after kneading adheres to the roll, so in order to peel it off from the roll, a doctor knife 7 is brought into contact with the hot roll 2, and the material is peeled off and sent to the secondary roll 5. This secondary roll 5 is a combination of a heating roll and a cooling roll, and at the same time kneads the mixed wire material and cools the material with the cooling roll, it is used as a crusher.
By crushing the material in steps 6 and 9, the elyceramic injection material is produced at the outlet of the crusher.

(イ)セラミックス射出成形材料の成形性は、有機バイ
ンダーの流動性に依存する。つまり、有機バインダーの
温度依存性を利用してセラミック粉体と有機バインダー
を均一に混練することが可能である。ロール表面温度上
制御することは、ニーダ等と比較して容易でちゃ、混練
温度を調節しゃ丁い。
(a) The moldability of ceramic injection molding materials depends on the fluidity of the organic binder. In other words, it is possible to uniformly knead the ceramic powder and the organic binder by utilizing the temperature dependence of the organic binder. It is easier to control the roll surface temperature than with a kneader, etc., and the kneading temperature can be adjusted.

(ロ)ロールは一般にニーダ等の混練機エフも練シが深
いと言われておジ、混線効率がよい。
(b) Rolls are generally said to have a deep kneading capacity, as do kneaders and other kneading machines, and the mixing efficiency is good.

(ハ)従来は、バインダーをセラミック粉体と同時に混
合して、混練機にかけていたが、バインダーロール表面
から供給することにより、バインダーの中にセラミック
粉体を包み込むようになるので、粉体表面に均一にコー
ティングされる。つまり、有機バインダーの流動性と近
似する。
(c) Conventionally, the binder was mixed at the same time as the ceramic powder and put into a kneading machine, but by supplying the binder from the surface of the binder roll, the ceramic powder is wrapped in the binder, so coated evenly. In other words, the fluidity is similar to that of an organic binder.

(発明の効果) 本発明は叙上の工うに熱ロール間にセラミック粉体を供
給する工程と、有機バインダー材料を前記の熱ロール表
面に付着しtセラミック粉体の表面に供給する工程と、
前記の熱ロールの表面に形成されたセラミック粉体と有
機バインダー材料との混合物を剥ぎとる工程と、前記の
剥ぎとられ九混合物を粉砕する工程とを具備することに
エフ、好適なセラミックス射出成形材料をうろことがで
きる。
(Effects of the Invention) The present invention includes a step of supplying ceramic powder between the heat rolls, a step of attaching an organic binder material to the surface of the heat roll and supplying it to the surface of the ceramic powder,
A suitable ceramic injection molding method comprising the steps of stripping off the mixture of ceramic powder and organic binder material formed on the surface of the hot roll, and pulverizing the stripped mixture. You can explore the materials.

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

第1図は本発明のセラミックス射出成形材料の製法を示
す。
FIG. 1 shows a method for producing the ceramic injection molding material of the present invention.

Claims (1)

【特許請求の範囲】[Claims]  熱ロール間にセラミック粉体を供給する工程と、有機
バインダー材料を前記の熱ロール表面に付着したセラミ
ック粉体の表面に供給する工程と、前記の熱ロールの表
面に形成されたセラミック粉体と有機バインダー材料と
の混合物を剥ぎとる工程と、前記の剥ぎとられた混合物
を粉砕する工程とを具備することを特徴とするセラミッ
クス射出成形材料の製法。
a step of supplying ceramic powder between the heat rolls; a step of supplying an organic binder material to the surface of the ceramic powder adhered to the surface of the heat roll; and a step of supplying the ceramic powder formed on the surface of the heat roll. 1. A method for producing a ceramic injection molding material, comprising the steps of stripping off a mixture with an organic binder material, and pulverizing the stripped mixture.
JP61007369A 1986-01-16 1986-01-16 Manufacture of ceramic injection molding material Pending JPS62167249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61007369A JPS62167249A (en) 1986-01-16 1986-01-16 Manufacture of ceramic injection molding material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61007369A JPS62167249A (en) 1986-01-16 1986-01-16 Manufacture of ceramic injection molding material

Publications (1)

Publication Number Publication Date
JPS62167249A true JPS62167249A (en) 1987-07-23

Family

ID=11664054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61007369A Pending JPS62167249A (en) 1986-01-16 1986-01-16 Manufacture of ceramic injection molding material

Country Status (1)

Country Link
JP (1) JPS62167249A (en)

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