程序的所有的数据会存放在这里粉末涂装相干常识_潍坊市鸿腾机器无限公司
粉末涂装相干常识
粉末涂装因此固体树脂粉末为成膜物资的一种涂覆工艺,它的涂装工具是粉末涂料。粉末涂装手艺的成长可谓为涂饰产业近代巨大的成绩之一。近15年来,全天下的粉末涂装产业以每一年两位数的增加率不变地飞速成长。对粉末涂装手艺的须要日趋增加的缘由在于粉末涂层具备优良的机能、易于施涂、节俭动力、普遍操纵于汽车和家用
电器行业,在经济效益和情况掩护方面的社会效益明显。
粉末涂装的特色:
(1)粉末涂装一次便可得到厚度为100~300μm的涂层,而接纳通俗涂料需4~8次的施工,进步施工效力,延长出产周期。
(2)涂料中不含溶剂,无需浓缩和调剂粘度,改良了休息前提和削减了火警的风险,有益于掩护情况。
(3)进步了涂层的附出力和致密性,金属粉末、陶瓷粉末等一路夹杂涂装,更能进步涂层的各项机器物理机能,涂膜的防侵蚀机能极大的进步。
(4)机器化水平高,并可收受接管操纵适量的涂料,下降了涂料的耗损。(5)涂装装备庞杂,投资本钱高,涂层的表面和流平性不迭喷涂体例好,某些粉末涂装体例对工件的外形尺寸有请求。只能对粉末涂料合用,本钱较高。
一、粉末涂装的施工体例已取得产业操纵的粉末涂料的施工体例有:火焰喷涂法(融射法)、流化床法、静电粉末喷涂法、静电流化床法、静电粉末振荡法、粉末电泳涂装法等。
二、流化床粉末涂装工艺流化床工艺,因为工件是预热到粉末熔点以上而涂覆的,融化的聚合物粘度下降,涂层的附出力大大改良,涂层的绝缘性和防腐机能大为进步。难消融的树脂如尼龙、聚乙烯、聚丙烯等也可用此法施工。
(1)工件清算工件须除油和除锈。将工件浸入汽油或三氯乙烯蒸气中清 除油污;用喷砂或抛丸除锈,清算清洁。
(2)打火产品打火的温暖应超出粉末状原材料建筑涂料的冰化温暖20℃玩弄,确定产品的具体和涂覆的分类及软硬的差距,打火产值在170~220℃。

(3)覆蔽工件中不须要涂覆的局部可用夹具(如硅橡胶)掩护起来,这类夹具起到夹取工件和掩护的两重感化。
(4)涂覆将工件进入流化床,为取得平均而持续的涂层,工件浸涂一次掏出后,当即反转180°,待涂层融化后再浸涂顺次,又当即反转180°。浸涂一次的时候为1~2秒。
(5)后热固化为使工件上的涂层更好的固化成膜,应进入烘干室再次加热。固化温度与固化时候这两个工艺参数从取得涂膜机能和尽可能延长施工周期来肯定。比方环氧粉末涂料的固化温度为180~190℃,固化时候为40~50分钟。
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