JPH0438944B2 - - Google Patents
Info
- Publication number
- JPH0438944B2 JPH0438944B2 JP24650487A JP24650487A JPH0438944B2 JP H0438944 B2 JPH0438944 B2 JP H0438944B2 JP 24650487 A JP24650487 A JP 24650487A JP 24650487 A JP24650487 A JP 24650487A JP H0438944 B2 JPH0438944 B2 JP H0438944B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pulley
- wear
- belt
- pulleys
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 229920003986 novolac Polymers 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Landscapes
- Pulleys (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
産業上の利用分野
本発明は、自動車用エンジンの部品として適し
た樹脂製プーリに関する。
従来の技術
自動車用部品の小型軽量化が進む中で、歯付プ
ーリ、Ｖプーリにおいても、軽量化、高性能化が
求められており、焼結プーリから樹脂製プーリへ
の移行が検討されている。
自動車用プーリとしては、優れたベルト耐摩耗
性と共に寸法精度、耐熱性も要求され、ガラス繊
維を充填材としたフエノール樹脂製プーリや綿布
を充填材としたフエノール樹脂製プーリが検討さ
れている。
発明が解決しようとする問題点
しかし、上記ガラス繊維を充填材としたもの
は、ベルトを摩耗させやすく、一方、綿布を充填
材としたものは、プーリの寸法精度、耐熱性の点
で不十分である。
本発明は、ベルト耐摩耗性を向上させ、寸法精
度、耐熱性に優れた樹脂製プーリを提供すること
を目的とする。
問題点を解決しようとするための手段
上記の目的を達成するために本発明は、樹脂製
プーリをフエノールアラルキル樹脂の混合樹脂で
成形したものであつて、その主たる充填材として
綿布を配合したことを特徴とするものである。
作 用
本発明は、ノボラツク樹脂に耐摩耗性の優れた
フエノールアラルキル樹脂を配合したことおよび
硬度が低くベルトを摩耗させにくい綿布の充填に
より、ベルトの摩耗の減少を図つて、耐熱性と寸
法安定性も保持するのである。
実施例
本発明に用いるフエノールアラルキル樹脂、ノ
ボラツク樹脂は、通常市販されているものが使用
でき、硬化剤としてヘキサミンが配合される。
これらフエノールアラルキル樹脂、ノボラツク
樹脂、綿布は、通常用いられる着色剤、離型剤、
硬化剤、硬化促進剤等と共にロールなとで混合混
練後粉砕して成形材料とされる。これを、圧縮成
形、トランスフアー成形、射出成形等に供し、プ
ーリを成形する。
実施例１〜２、比較例１〜２
第１表に示した配合組成（重量部）の材料をロ
ールで混合混練後粉砕して成形材料となし、これ
を用いてＶプーリを成形した。成形は、100T射
出成形機を用い、金型温度180℃、シリンダ温度
（前部90℃、後部50℃）で行なつた。
各Ｖプーリのベルトについての摩耗の程度、並
びにＶプーリの耐熱性、寸法安定性の評価結果を
第１表に併せて示す。ベルトの摩耗の程度は、通
常のゴムを主体としたベルトをＶプーリにかけ、
5000rpmで200時間回転させた後の状況を目視に
て評価した。また、耐熱性、寸法安定性について
は、ベルトの摩耗試験後の寸法変化率で評価し
た。
INDUSTRIAL APPLICATION FIELD The present invention relates to a resin pulley suitable as a component of an automobile engine. Conventional technology As automobile parts become smaller and lighter, toothed pulleys and V-pulleys are also required to be lighter and have higher performance, and a shift from sintered pulleys to resin pulleys is being considered. There is. Pulleys for automobiles require excellent belt abrasion resistance as well as dimensional accuracy and heat resistance, and phenolic resin pulleys filled with glass fiber and phenolic resin pulleys filled with cotton cloth are being considered. Problems to be Solved by the Invention However, the above-mentioned one using glass fiber as a filler tends to cause belt wear, while the one using cotton cloth as a filler is insufficient in terms of dimensional accuracy and heat resistance of the pulley. It is. An object of the present invention is to provide a resin pulley that improves belt abrasion resistance and has excellent dimensional accuracy and heat resistance. Means for Solving the Problems In order to achieve the above object, the present invention provides a resin pulley molded from a mixed resin of phenol aralkyl resin, and a cotton cloth is blended as the main filler. It is characterized by: Function The present invention aims to reduce belt wear by blending phenol aralkyl resin with excellent wear resistance into novolak resin and filling with cotton fabric that has low hardness and does not easily wear out the belt, thereby improving heat resistance and dimensional stability. It also preserves gender. Examples Commercially available phenol aralkyl resins and novolac resins used in the present invention can be used, and hexamine is added as a curing agent. These phenol aralkyl resins, novolak resins, and cotton cloths are made of commonly used colorants, mold release agents,
The mixture is mixed and kneaded with a curing agent, curing accelerator, etc. using a roll, and then pulverized to obtain a molding material. This is subjected to compression molding, transfer molding, injection molding, etc. to form a pulley. Examples 1-2, Comparative Examples 1-2 Materials having the compounding composition (parts by weight) shown in Table 1 were mixed and kneaded with a roll and then ground to obtain a molding material, which was used to mold a V-pulley. Molding was carried out using a 100T injection molding machine at a mold temperature of 180°C and a cylinder temperature (front: 90°C, rear: 50°C). Table 1 also shows the degree of wear on the belt of each V-pulley, as well as the evaluation results of the heat resistance and dimensional stability of the V-pulley. The degree of belt wear can be determined by placing a belt made mainly of ordinary rubber on a V-pulley.
The situation was visually evaluated after rotating at 5000 rpm for 200 hours. Furthermore, heat resistance and dimensional stability were evaluated by the dimensional change rate after the belt abrasion test.
【表】
〓プーリ摩耗〓 △：やや摩耗有
×：摩耗著しい
発明の効果
第１表から明らかなように、本発明は、フエノ
ールアラルキル樹脂とノボラツク樹脂、および充
填材の綿布の組合せにより、耐熱性、寸法安定性
が良好で、ベルトの摩耗並びにプーリ自体の摩耗
も小さいものである点、その工業的価値は極めて
大なるものである。[Table] Pulley wear △: Slight wear
×: Effect of the invention on significant wear As is clear from Table 1, the present invention has good heat resistance and dimensional stability due to the combination of phenol aralkyl resin, novolac resin, and cotton cloth as a filler, and reduces wear and tear on the belt. Its industrial value is extremely great in that the wear of the pulley itself is small.
Claims (1)
混合樹脂で成形され、主たる充填材として綿布が
配合されてなる樹脂製プーリ。 A resin pulley that is molded from a mixed resin of phenol aralkyl resin and novolac resin, and contains cotton cloth as the main filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24650487A JPS6487968A (en) | 1987-09-30 | 1987-09-30 | Resin made pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24650487A JPS6487968A (en) | 1987-09-30 | 1987-09-30 | Resin made pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6487968A JPS6487968A (en) | 1989-04-03 |
| JPH0438944B2 true JPH0438944B2 (en) | 1992-06-26 |
Family
ID=17149382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24650487A Granted JPS6487968A (en) | 1987-09-30 | 1987-09-30 | Resin made pulley |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6487968A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2888384B2 (en) * | 1990-06-26 | 1999-05-10 | 住友ベークライト株式会社 | Phenolic resin molding materials |
| JP5142073B2 (en) * | 2007-09-19 | 2013-02-13 | スズキ株式会社 | Rear body structure |
-
1987
- 1987-09-30 JP JP24650487A patent/JPS6487968A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6487968A (en) | 1989-04-03 |
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