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		<title>عطارد on UV Curing Lab</title>
		<link>http://uv-curing-lab.com/ar/tags/%D8%B9%D8%B7%D8%A7%D8%B1%D8%AF/</link>
		<description>Recent content in عطارد on UV Curing Lab</description>
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			<lastBuildDate>Wed, 03 Jun 2026 05:48:03 +0800</lastBuildDate>
		
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				<title>استبدال مصباح الزئبق عالي الضغط</title>
				<link>http://uv-curing-lab.com/ar/posts/replacing-high-pressure-mercury-lamp/</link>
				<pubDate>Wed, 03 Jun 2026 05:48:03 +0800</pubDate>
				<guid>http://uv-curing-lab.com/ar/posts/replacing-high-pressure-mercury-lamp/</guid>
				<description>&lt;p&gt;&lt;img src=&#34;http://uv-curing-lab.com/images/4c9e492a67b56412ff36b4a4447cefe9.jpg&#34; alt=&#34;استبدال مصباح الزئبق عالي الضغط&#34;&gt;&lt;/p&gt;&#xA;&lt;p&gt;Tacky prints don’t always point to bad ink. On offset, flexo, screen, and rotogravure lines, the usual culprit is a high-pressure mercury lamp that’s hit &lt;a href=&#34;https://henruite.com&#34;&gt;optical&lt;/a&gt; decay. As the mercury vapor spectrum shifts and the quartz sleeve ages, peak irradiance falls off, and the 365 nm output that drives photoinitiator cross-linking gets weaker. You end up measuring lower mJ/cm² at the substrate. The result is incomplete cure, blocking, and scrap.&#xA;&lt;strong&gt;What matters, technically&lt;/strong&gt;&#xA;When you replace mercury, you’re matching spectral output to the ink’s photoinitiator window. For standard cationic and free-radical systems, keep strong 365 nm output and &lt;a href=&#34;https://goldisgood.com&#34;&gt;stable&lt;/a&gt; peak irradiance. If you need an LED-like cure front, 385 nm and 405 nm give you softer penetration and less heat.&#xA;Spec lamps with dichroic reflectors that shape the beam and keep &lt;a href=&#34;https://o-yate.com&#34;&gt;energy&lt;/a&gt; on the web. And confirm curing energy density at line speed, not just lamp power. Look for stable output for 5,000+ hours with less than 5% drop, and an ozone-free design to keep the shop air cleaner.&#xA;&lt;strong&gt;Why it plays on press&lt;/strong&gt;&#xA;On Heidelberg, KBA, Gallus, and SPS screen presses, the swap is straightforward when lamp length, arc gap, connector, and cooling match the machine footprint. You get &lt;a href=&#34;https://o-yate.net&#34;&gt;repeatable&lt;/a&gt; cure across the sheet, fewer stops for blocking, and lower energy draw per cured meter. Surface finish stays consistent, and job changeovers move faster—without chasing ink formulation.&#xA;&lt;strong&gt;The practical details&lt;/strong&gt;&#xA;Match the lamp to the press: offset needs uniform, high-intensity cure; flexo needs deep through-cure; screen needs broad, even exposure. Double-check reflector geometry and the dichroic coating for your setup and speed.&#xA;On some older mercury fixtures, expect a re-wire or ballast change. Always validate cure with a radiometer, and run a pilot job to set the energy density window.&lt;/p&gt;</description>
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				<title>مصباح زئبق للأشعة فوق البنفسجية لطباعة الملصقات</title>
				<link>http://uv-curing-lab.com/ar/posts/mercury-uv-lamp-for-label-printing/</link>
				<pubDate>Sun, 24 May 2026 02:29:53 +0800</pubDate>
				<guid>http://uv-curing-lab.com/ar/posts/mercury-uv-lamp-for-label-printing/</guid>
				<description>&lt;h2 id=&#34;ما-الذي-يجعل-هذه-المصباح-يعمل&#34;&gt;ما الذي يجعل هذه المصباح يعمل&lt;/h2&gt;&#xA;&lt;p&gt;قمنا ببناء هذا المصباح فوق البنفسجي بالزئبق لمكان واحد فقط: خط طباعة الملصقات. لأن سرعة التثبيت هي التي تحدد سرعة خطك.&lt;br&gt;&#xA;لذلك اخترنا مدخل 400 فولت. ليس اختيارًا عشوائيًا—إنه يحافظ على استقرار القوس داخل أنبوب الكوارتز، بحيث تحصل على كثافة واط عالية تحتاجها لتثبيت الحبر بسرعة.&lt;br&gt;&#xA;تحصل على 2500 واط من الطاقة المركزة، كلها محشورة في جسم طوله 300 مم. هذا الحجم الصغير يعني أنه يمكنك إدخاله في إعداد التثبيت بالأشعة فوق البنفسجية الموجود لديك دون تفكيك الجهاز بالكامل.&lt;/p&gt;</description>
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