プリンターペーパーピックローラーの耐用年数の改善
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プリンターペーパーピックローラーの耐用年数の改善

表面移動の問題を特定した後、Enbiは摩擦損失を防ぐ新しいゴム化合物を開発し、信頼性を向上させ、長期的な顧客の信頼を強化しました。

プロジェクト

Enbi has for many years produced a Paper Pick Roller for a global printer manufacturer for use in an office printer.  However, a number of complaints from customers in the field mentioned that over time the product was not picking the paper anymore.  Due to the customer complaint a joint investigation was carried out to identify the root cause and find an acceptable solution.

歴史

The pick roller was developed with a gray EPDM-45 and came through all the tests from our customer including climate tests, life tests, etc., so it was a surprise that this problem occurred.  So the focus of the investigations focused on the original design assumptions and what if anything had changed since the printer went to market.

アプローチ

We found from our root cause analyses that the problem only occurred when the printer was not used for a long time. It was caused by a migration of low molecular excess materials that diffused out of the rubber matrix and formed a thin layer on the outside surface of the roller. This resulted in a loss of friction. There was a short time action mainly from our customer to design a repair kit that was supplied to the end users when they had problems and for long term, we needed to develop a formulation where this phenomenon could not occur anymore. As there is very little literature known, we worked together with DIK (German rubber institute) to solve this compounding issue. It resulted in a lot of testing for friction over time (6 months) in different environmental circumstances (temperature, RH, light, etc.). At the end we found a stable solution.

利点

最終的に解決策を見つけたことで、顧客とエンドユーザーの両方が満足しましたが、最も重要なのは、この現象を防ぐことに関して多くの研究を行ったことで、私たちはこの分野の専門家となったことです。私たちの製品が長期的な摩擦損失に関連する問題を引き起こさないことを常に保証できます。

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