主营:氟碳铝单板,双曲铝单板,木纹铝单板,冲孔铝单板,辊涂铝单板,异形铝单板,幕墙铝单板,仿大理石铝单
所在地:
陕西 西安
产品价格:
电议
最小起订:
0
发布时间:
2020-09-20
有效期至:
2020-10-20
<p><span class="Apple-style-span" quot;widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #000000; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;"><span class="Apple-style-span" quot;text-align: left; font-family: Arial, 宋体; color: #333333; font-size: 12px;"> <p quot;line-height: 1.5; margin: 0px; clear: both; padding: 0px;"><strong quot;font-weight: bold;"><span quot;font-size: 16pt;">材料喷涂单层铝板与辊涂单层铝板在建筑幕墙中应用的差异比较</span></strong><br />单层铝板广泛应用于建筑幕墙,其表面PVDF材料涂层通常以喷涂工艺形成,也有通过辊涂工艺形成的。前者是先通过钣金加工工艺把光铝板加工成含加强筋和挂耳的结构,然后进行PVDF材料涂层。而辊涂板是先通过辊涂工艺在铝板表面辊涂PVDF材料涂层,然后通过钣金加工工艺把涂层板加工成一定结构。本文对喷涂板和辊涂板在幕墙中应用和性能上的差异进行比较分析。<br />幕墙用单层铝板的材质有纯铝系列(1100、1060)、Al一Mn合金(如3003)和Al-Mg合金(5052、5754等)。喷涂板的厚度和合金型号可根据设计需要来选择,不受工艺限制。由于辊涂工艺的特点,辊涂板厚度不大于2.5mm.下面就常用的3mm厚3003喷涂板和2.5mm厚5754辊涂板刚性做对比分析。<br /><br />在幕墙结构中,铝板的刚性是很重要的,因为在幕墙结构中铝板的破坏形式不是断裂,而是铝板是否有足够的刚性抵御外负载产生的变形,在分格确定的情况下,铝板的刚性取决于铝板的厚度和加强筋的结构。单层铝板的刚度在JGl02-2003《<a quot;color: #0066cc; text-decoration: none;" name="wikilink" href="//detail.china.alibaba.com/buyer/offerdetail/979102116.html#" target="_blank">玻璃</a>幕墙工程技术规范》中做了规定。<br /><br />刚度系数(D)计算依据:<br /><br />D=Et3/12(1-0.332),t为板厚,E为弹性模量。<br /><br />A1一Mn系合金(3003)E1=70GPA<br />A1一Mg系合金(5754)E2=El=69.3GPA<br /><br />计算3mm厚3003铝合金和2.5mm厚5754铝板的刚性:<br /><br />D3003/D5754=1.75<br />3mm3003铝合金的刚性为2.5mm5754铝合金的1.75倍。从弹性模量E值可知,等厚度的3003铝合金比5754铝合金刚性略好。<br /><br />因此许多工程尤其是高层结构和高风压区域选用3mm厚喷涂铝板(3003),如<a quot;color: #0066cc; text-decoration: none;" name="wikilink" href="//detail.china.alibaba.com/buyer/offerdetail/979102116.html#" target="_blank">上海</a>中心广场(高170m)、<a quot;color: #0066cc; text-decoration: none;" name="wikilink" href="//detail.china.alibaba.com/buyer/offerdetail/979102116.html#" target="_blank">大连</a>云山大厦(高210m)、<a quot;color: #0066cc; text-decoration: none;" name="wikilink" href="//detail.china.alibaba.com/buyer/offerdetail/979102116.html#" target="_blank">深圳</a>机场等。在国外多应用纯铝板,厚度在3mm~4mm.辊涂板适用于低风压情况使用,如低层建筑。<br /><br />国内外常用的衡量单层铝板表面材料涂层性能的标准是美国建筑制造商协会AAMA605.2规范。该标准是针对喷涂工艺而制定的。对于辊涂工艺形成的材料涂层目前国内外还没有通用的技术规范,因为这种板材很少使用。我国行业标准《建筑铝板及铝型材表面材料涂层技术规范》等效采用了AAMA605.2规范,也是针对喷涂工艺而制定的。<br /><br />与喷涂板相比,辊涂板涂层厚度要薄。辊涂生产线一般是两涂两烤或一涂一烤,按辊涂工艺特点,辊涂板涂层厚小于251xm.涂层薄会降低其预防光线直射穿透能力和抗风蚀性能。为了达到401xm厚度,辊涂板不得不通过多次涂烤(如四涂四烤),让铝卷两次通过辊涂线。这样,层与层之间分子结合力比层内分子结合力要低,外界小分子容易沿层扩散而腐蚀涂层和基板。<br /><br />有经验生产:铝单板<a quot;color: #0066cc; text-decoration: none;" name="wikilink" href="//detail.china.alibaba.com/buyer/offerdetail/979102116.html#" target="_blank">装饰</a>铝板建筑铝板材料铝单板铝塑板铝蜂窝板幕墙铝板材料喷涂石材铝蜂窝板木纹铝板外墙铝板粉末喷涂冲孔铝板仿大理石铝板<br /> </p> <p quot;text-align: center; line-height: 1.5; margin: 0px; clear: both; padding: 0px;"><span quot;font-family: 瀹嬩綋; color: #000000; font-size: 10.5pt;">本公司秉承“顾客至上,锐意进取”的经营理念,坚持“客户靠前”的原则</span><span quot;font-family: 瀹嬩綋; color: #000000; font-size: 10.5pt;"> </span></p> <p quot;text-align: center; line-height: 1.5; margin: 0px; clear: both; padding: 0px;"><span quot;font-family: 瀹嬩綋; color: #000000; font-size: 10.5pt;">为广大客户提供优异的服务。欢迎广大客户惠顾!</span></p> <p quot;text-align: center; line-height: 1.5; margin: 0px; clear: both; padding: 0px;"> </p> <p quot;text-align: center; line-height: 1.5; margin: 0px; clear: both; padding: 0px;"><span quot;font-family: 瀹嬩綋; color: #000000; font-size: 10.5pt;"> ■有经验加敬业造就诚信,优异服务赢得天下客!■</span><span quot;font-family: 瀹嬩綋; color: #000000; font-size: 10.5pt;"><br /></span><span quot;font-family: 瀹嬩綋; color: #000000; font-size: 10.5pt;"> 【一旦相识,终生朋友!请放心咨询、订货!! 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