JPH0780712B2 - Degreasing method for injection molded products - Google Patents
Degreasing method for injection molded productsInfo
- Publication number
- JPH0780712B2 JPH0780712B2 JP2011084A JP1108490A JPH0780712B2 JP H0780712 B2 JPH0780712 B2 JP H0780712B2 JP 2011084 A JP2011084 A JP 2011084A JP 1108490 A JP1108490 A JP 1108490A JP H0780712 B2 JPH0780712 B2 JP H0780712B2
- Authority
- JP
- Japan
- Prior art keywords
- degreasing
- jig
- molded body
- injection molded
- molded products
- 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 - Fee Related
Links
Landscapes
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、押出・射出成形体の脱脂方法に関する。TECHNICAL FIELD The present invention relates to a method for degreasing an extrusion / injection molded article.
本発明は、押出・射出成形体を加熱して脱脂する際に、
成形体の収納治具に多孔質セラミックスを用い、均一な
脱ガス、温度分布、熱拡散を可能にする方法である。The present invention, when heating and degreasing the extrusion / injection molded article,
It is a method of using a porous ceramics as a jig for accommodating a molded body and enabling uniform degassing, temperature distribution, and heat diffusion.
従来、成形体の脱脂方法として、第２図の斜視図に示す
ようにアルミナ等の粉末３の中に成形体２を挿入し、脱
脂する方法（粉中脱脂）や、第３図の斜視図に示すよう
に緻密セラミックス治具５に成形体を収納し脱脂する方
法等がある。Conventionally, as a method for degreasing a molded body, a method of degreasing by inserting the molded body 2 into powder 3 such as alumina as shown in the perspective view of FIG. 2 (degreasing in powder), or a perspective view of FIG. As shown in FIG. 3, there is a method of storing the molded body in the dense ceramic jig 5 and degreasing it.
従来の粉中脱脂では確かに均一な脱ガス、温度分布は得
られるが、その程度は低くかつ取扱いが不便であった。
また緻密セラミックス治具を用いる場合、取扱い上、簡
便であるが、成形体と治具の接触面で脱ガス、熱拡散が
悪いため、脱脂後、不良品が多発した。Although conventional degreasing in powder can surely obtain uniform degassing and temperature distribution, its degree is low and handling is inconvenient.
In addition, when a dense ceramic jig is used, it is easy to handle, but since degassing and heat diffusion are poor at the contact surface between the molded body and the jig, many defective products occur after degreasing.
本発明は成形体の全体が均一な脱ガス、かつ、加熱され
る温度分布を平坦にし、さらに成形体の取扱いが簡便で
ある脱脂方法を提供することを目的とする。An object of the present invention is to provide a degreasing method in which the entire molded body is uniformly degassed, the heating temperature distribution is flattened, and the molded body is easy to handle.
本発明は、気孔率５〜20％の多孔質セラミックスを成形
体の収納治具にし脱脂する。In the present invention, a porous ceramic having a porosity of 5 to 20% is used as a jig for accommodating a molded body to degrease it.
多孔質セラミックス収納治具を用い脱脂することで、成
形体の脱ガス、熱拡散を均一にし、その効果は粉中脱脂
より大きく、又、取扱いも簡便になる。By degreasing using a porous ceramics storage jig, degassing and thermal diffusion of the molded body are made uniform, the effect is greater than degreasing in powder, and handling is simple.
第１図（Ａ），（Ｂ）は、本発明に用いたアルミナ多孔
質収納治具の斜視図である。同図（Ａ）に示す如く、成
形体２を多孔質収納治具１のＶ溝形状の溝１′中に設置
し、実際には同図（Ｂ）の如く、段々重ねにし脱脂炉に
入れ脱脂する。1 (A) and 1 (B) are perspective views of the alumina porous storage jig used in the present invention. As shown in FIG. 2A, the molded body 2 is installed in the V-shaped groove 1'of the porous storage jig 1, and actually, as shown in FIG. Degrease.
成形体として、アルミナ円柱体を射出成形して、同一条
件で作製したものを用い、同一昇降温プログラムで脱脂
した。その結果、ヒビ、表面剥離等がない良好な脱脂体
を得る確率（100個中）は、第１図の本発明では100％、
第２図の粉中脱脂では93％、第３図は緻密アルミナ治具
使用で50％となった。As a molded body, an alumina columnar body was injection-molded and manufactured under the same conditions, and degreasing was performed under the same temperature raising / lowering program. As a result, the probability of obtaining a good degreased body without cracks, surface peeling, etc. (out of 100) is 100% in the present invention of FIG.
The degreasing in powder in Fig. 2 was 93%, and in Fig. 3 was 50% using the dense alumina jig.
以上説明したように、本発明によれば成形体と治具の接
触面に空気が直接触れる部分が多く、初期の脱ガスを多
孔質体が吸収するため、均一な脱ガス、温度分布、熱拡
散が行われる。又、取扱も簡単で従来に比して優れた脱
脂方法となる。As described above, according to the present invention, there are many portions where air directly contacts the contact surface between the molded body and the jig, and since the initial degassing is absorbed by the porous body, uniform degassing, temperature distribution, heat Diffusion takes place. Further, the degreasing method is easy to handle and superior to the conventional method.
第１図（Ａ），（Ｂ）は本発明の脱脂方法に用いる治具
を示す斜視図、第２図は従来の粉中脱脂を示す斜視図、
第３図は従来の緻密セラミックスを用いた治具を示す斜
視図である。1 (A) and 1 (B) are perspective views showing a jig used in the degreasing method of the present invention, and FIG. 2 is a perspective view showing conventional degreasing in powder,
FIG. 3 is a perspective view showing a conventional jig using dense ceramics.
Claims (1)
なり、断面がＶ字形の収納溝を配列した収納治具を用
い、上記収納溝内に射出成形体を収納し、加熱して脱脂
することを特徴とする射出成形体の脱脂方法。1. A storage jig made of porous ceramics having a porosity of 5 to 20% and having V-shaped cross-section storage grooves arranged therein. A method for degreasing an injection-molded article, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011084A JPH0780712B2 (en) | 1990-01-19 | 1990-01-19 | Degreasing method for injection molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011084A JPH0780712B2 (en) | 1990-01-19 | 1990-01-19 | Degreasing method for injection molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03215368A JPH03215368A (en) | 1991-09-20 |
| JPH0780712B2 true JPH0780712B2 (en) | 1995-08-30 |
Family
ID=11768110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011084A Expired - Fee Related JPH0780712B2 (en) | 1990-01-19 | 1990-01-19 | Degreasing method for injection molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0780712B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464747A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Novel degreasing furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60195062A (en) * | 1984-03-16 | 1985-10-03 | 日本碍子株式会社 | Method of dewaxing ceramic molded body |
| JPH0158633U (en) * | 1987-10-08 | 1989-04-12 |
-
1990
- 1990-01-19 JP JP2011084A patent/JPH0780712B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464747A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Novel degreasing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03215368A (en) | 1991-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |