How is your pH? Key requirements and approaches to the selection of liquids for cleaning printed circuit assemblies on a ph-neutral basis

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The article considers the prerequisites for the emergence of pH-neutral cleaning liquids and modern requirements for them. The information is also provided on the distinctive features and characteristics of Hydronol N18 pH-neutral liquid and the experience of its use in Russian radio-electronic equipment production.

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作者简介

D. Potseluev

ООО «Остек-Интегра»

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Email: potseluev.d@ostec-group.ru

директор по продажам и маркетингу

俄罗斯联邦

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2. Fig. 1. Components after washing with alkaline liquid (a, b) and pH-neutral liquid Hydronol® H18 (c, d)

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3. Fig. 2. Compatibility with component and printed circuit board markings: a – Hydronol® H18 (no damage to markings and components); b – other domestic pH-neutral cleaning liquid (marking removal)

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4. Fig.1

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5. Fig.2

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6. Fig. 3. Results of washing electrolytic capacitors in Hydronol® H18

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7. Fig. 4. Effect of pH-neutral cleaning liquids from various domestic manufacturers on components: a – Hydronol® H18 (no damage to markings, components, or seals); b – Hydronol® H18 (no damage to components or seals); c – another pH-neutral liquid (damage to the component enveloping bead); d – another pH-neutral liquid (damage to the component housing)

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