粉末涂料施工工艺流程
粉末涂料是一种新型的不含溶剂100%固体粉末状涂料。它有两大类：热塑性粉末涂料和热固性粉末涂料。涂料由特
Powder coating is a new type of 100% solvent-free solid powder coating, it has two categories: thermoplastic powder coating a 一、粉末涂料的特性
Characteristics of powder coatings
1、该产品不含毒性，不含溶剂和不含挥发有毒性的物质，故无中毒、无火灾、无“三废”的排放等公害的问题，完
The product is non-toxic, non-toxic and non-toxic volatile substances, so no poisoning, no fi 2、原材料利用率高，过喷的粉末可回收利用，利用率达99％以上。
High utilization rate of raw materials, over-sprayed powder can be recycled, the utilization ra 3、被涂物前处理后，一次性施工，无需底涂，即可得到足够厚度的涂膜，易实现自动化操作，生产效率高，可降低
After the pre-treatment, a one-time construction, without primer, you can get a sufficient thic 4、涂层致密、附着力、抗冲击强度和韧性均好，边角覆盖率高，具有优良的耐化学药品腐蚀性能和电气绝缘性能。
The density, adhesion, impact strength and toughness of coating are good, high corner cove 5、粉末涂料存贮、运输安全和方便。
the storage and transportation of Powder coating are safe and convenient.
二、粉末喷涂施工工艺及要求
The technology and requirement of Powder Spraying
所谓粉末静电喷涂就是利用高压静电电晕电场的原理。在喷枪头部金属导流标上接上高压负极，被喷涂工件接地形成The so-called electrostatic powder coating is the use of high-voltage electrostatic corona electric field
涂装施工工艺流程：前处理一干燥除去水份一喷涂一检查一烘烤一检查一成品
coating construction process: pre-treatment-drying to remove water-spraying -checking-baki 三、施工要求
Construction requirements
1、一般粉末喷涂施工要求
General construction requirements of powder coating
(1)为使粉末涂装的特性能充分发挥和延长涂膜使用寿命，破涂物表面首先严格进行表面前处理。
In order to make the characteristics of powder coating can fully play and extend the service (2)喷涂时，被涂物须完全接地，以增加粉末涂装的喷着效率。
The coated article must be completely grounded to increase the spraying efficiency of powd (3)对有较大表面缺陷的被涂物，应涂刮导电腻子，以保证涂膜的平整和光滑感。
For larger surface defects of the coating should be coated with Scraping conductive putty, in (4)喷涂后物件物件需进行加热固化、固化条件以粉末产品技术指标为准但必须充分保证其固化温度和时间，避免固
After spraying, the articles need to be heated curing and curing conditions subject to the spe (5)喷粉后立即检查，若发现缺陷应及时处理，若固化后发现缺陷，其范围小仅局部而不影响，被涂物表面装饰，可
immediately Check after spraying, if found defects timely treatment should be done, if found (6)回收粉须经过筛选除去杂物后，按一定比例与新粉混合作用
The recycled powder mixing together with new powder as a certain percentage prior to be fi (7)供粉桶、喷粉室及回收系统应避免其它不同颜色粉末的污染，故每次换色时一定要吹扫干净。
Hopper, powder spraying room and recycling system should avoid the pollution of other diffe 2、美术型粉末喷涂施工要求：美术型粉末，具有美观，立体感强，装饰性效果奸等特点，但对其施工工艺要求严格
The coating construction requirements of Art type powder : art type powder with beautiful, st (1)喷粉时输入气压不宜太大，一般控制在0.5-1．5kg/cm2为好。气压太大会造成花纹清晰度差或者产生一些麻点。
the input pressure should not be too large when spraying, generally controlled at 0.5-1.5kg / (2)喷粉要注意保证涂膜的厚度，一般控制在70-100μm之间方能有利于形成明显的花纹和较大的花纹，涂膜薄则花纹
The film thickness should be taken notice of when powder spraying, normally controlled bet (3)固化时必须按规定的温度和时间进行烘烤。如果温度过低时间过短会造成粉末形不成花纹，同时因固化不彻底机
Curing must be carried out at the specified temperature and time. If the temperature is too lo 四、粉末涂料的保管和取用
the storage and use of powder coating
1、远离火源、避免日光直接照射，应置于通风良好，温度在35℃以下场所。
Away from the fire, avoid direct sunlight, placed in a well ventilated and the place of
2、避免存放在易受水，有机溶剂，油和其它材料污染的场所。
the storage place should prevent from water, organic solvents, oil and other materials
3、粉末涂料用后勿随意露于空气中，应随时加盖或匝紧袋口避免杂物混入。
The Powder coating should not be exposed to the air after use. it should be tightly covered w 4、避免皮肤的长期接触，附着于皮肤的粉末应用肥皂水冲洗干净，切勿使用溶剂。
Prevent the skin from touching the powder for long period of time, the attached powder shou 五、涂装施工场所的安全
The safety of coating construction sites
l、涂装作业使用设备均要完好的接地消除静电。
the used equipment of coating operations must be well grounded to eliminate static electrici 2、避免涂装机无端放电现象
Avoid the unwanted discharge phenomenon of coating machine
3、喷粉室内，浮游粉尘的浓度尽量控制在安全浓度以下，避免粉尘着火爆炸的危险。
the concentration of planktonic dust in Spraying chamber keep below the safe concentration 六、粉末涂料涂装工艺的影响
The influence of Powder Coating Process
当粉末涂装产品出现质量问题时，涂装厂家往往首先想到的是粉末涂料的质量问题问题，这也是正常的现象。实际上This is a normal phenomenon that the coating manufacturers firstly think of coating quality p 4.1 涂装设备的清机
the cleaning of coating equipment
在粉末涂装中，根据用户要求，要经常更换涂装产品的颜色，那么相应地对粉末涂料品种或颜色也进行更换。当更换The color of coating products need frequently change in powder coating according to user ‘s 4.2 粉末喷涂工艺的影响
The influence of powder coating process
粉末喷涂工艺是保证粉末涂装涂膜厚度的关键工序，如果涂膜厚度没有达到一定的厚度，就难以达到足够Powder coating process is the key processes which ensure the film thickness of powder coa 4.3 烘烤温度的影响
Baking temperature
粉末涂装的烘烤温度对涂膜的色差有很明显的影响。因为粉末涂料用有机颜料和部分无机颜料的耐热温度The baking temperature of Powder coating has a significant impact on the color difference o 4.4 烘烤时间的影响
The influence of baking time
粉末涂料的烘烤时间对粉末涂料涂膜色差也有明显的影响。因为粉末涂料配方中使用的树脂、固化剂、有机颜料和助The baking time of Powder coating also has a significant impact on the color difference of p
涂料。涂料由特制树脂、颜填料、固化剂及其它助剂，以一定的比例混合，再通过热挤塑和粉碎过筛等工艺制备而成。它们在常温下，贮moplastic powder coating and thermosetting powder coating. it is mixed in a certain percentage by a special resin, pigments and fillers, curin
”的排放等公害的问题，完全符合国家环保法的要求。
so no poisoning, no fire, no "three wastes" emissions and other pollution problems, in full compliance with nationa cled, the utilization rate of 99%.
操作，生产效率高，可降低成本。
an get a sufficient thickness of the coating, easy to automate the operation, high production efficiency, can reduce 腐蚀性能和电气绝缘性能。
good, high corner coverage, with excellent resistance to chemical corrosion and electrical insulation properties.
负极，被喷涂工件接地形成正极，使喷枪和工件之间形成一个较强的静电电场。当作为运载气体的压缩空气，将粉末涂料从供粉桶经粉管 field principle that the metal guide In the gun head connected to the high-voltage negative pole, the positive ele checking-baking-check-finished product
nd extend the service life of the coating, the surface of coating material strictly make pretreatment at first
ng efficiency of powder coating when coating
ng conductive putty, in order to ensure coating film to be flat and smooth.
其固化温度和时间，避免固化不足造成质量事故。
ons subject to the specifications of powder products but must fully ensure curing temperature and time to avoid th 影响，被涂物表面装饰，可用同色粉末加丙酮稀释后进行修补，如果范围大又影响表面质量，则用砂纸打磨后，再喷涂一次或用脱漆剂去掉ould be done, if found defects after curing which only local and small range that without affecting the coated surfa rcentage prior to be filtered to remove debris.
pollution of other different colors of powder, so every time for color change must be swept and cleaned
，但对其施工工艺要求严格。
wder with beautiful, strong sense of solid, good effect of decoration and other speciality, but the strict requiremen 晰度差或者产生一些麻点。静电电压也不宜过高，一般控制在60-70Kv左右。电压太高，会使附在工件表面的粉末发生反弹现象出现麻坑。ntrolled at 0.5-1.5kg / cm2, the pressure too much will cause poor clarity of pattern or appear some pitting. Static 较大的花纹，涂膜薄则花纹不明显，而且花纹也小，同时会出现麻点露底等缺陷
ormally controlled between 70-100μm that can be conducive to the formation of significant patterns and larger pat 花纹，同时因固化不彻底机械性能也大大下降。另外，因美术型花纹粉末生产工艺的特殊性，用回收粉末再喷后，其花纹会发生变小或不明e temperature is too low, the time is too short will cause the pattern can’t be formed from powder, while not fully c
the place of below temperature of 35 degrees Celsius
aterials
ld be tightly covered with lid or tied the bag at any time to avoid debris mixed in.
attached powder should be rinsed with soapy water,
minate static electricity
he safe concentration as far as possible to against the risk of dust ignition explosion.
这也是正常的现象。实际上，粉末涂料和涂装都对粉末涂装产品质量有影响，其中粉末涂料对涂装产品质量的影响占百分之五十；粉末涂nk of coating quality problem when the quality problem of powder coating occurred. Factually, both of powder coa
或颜色也进行更换。当更换粉末涂料产品的颜色色差较大，喷粉系统清扫不干净，那么旧粉就污染新粉，对涂装工件的涂膜颜色产生干扰g according to user ‘s requirements, then , correspondently replace the variety of powder coating or color. When
就难以达到足够的涂膜遮盖力，那么容易带来涂装产品的颜色色差问题。因此，在粉末涂装中，一方面必须保证上粉量使涂膜有足够遮盖ckness of powder coating .if the film thickness does not reach a certain level, it is difficult to achieve adequate hid
颜料的耐热温度有一定的限制，尤其是户内用粉末涂料成分中，有些树脂、固化剂和助剂的耐热温度也不高，所以当烘烤温度超过这个温 the color difference of the coating film, Because the powder coating material have a certain heat-resistant tempe
脂、固化剂、有机颜料和助剂的耐热性有一定的限制。耐热性不仅包括耐热温度，还包括该温度下的保持时间。如果粉末涂料的烘烤固化e color difference of powder coating film. Because the used resin, curing agent, organic pigments and additives he
备而成。它们在常温下，贮存稳定，经静电喷涂或流化床浸涂，再加热烘烤熔融固化，使形成平整光亮的永久性涂膜，达到装饰和防腐蚀的 pigments and fillers, curing agents and other additives, and then manufactured through the process of hot extrusion, crushing and screenin
mpliance with national environmental protection requirements.
efficiency, can reduce costs.
sulation properties.
将粉末涂料从供粉桶经粉管送到喷枪的导流杆时，由于导流杆接上高压负极产生的电晕放电，在其附近产生了密集的负电荷，使粉末带上负the positive electrode is formed by sprayed work piece on ground, the formation of a strong electrostatic field betw first
e and time to avoid the quality accidents caused by the lack o
f curing
再喷涂一次或用脱漆剂去掉涂层，再重新唢粉。
cting the coated surface decoration that can use the same color powder plus acetone diluted to repair, if the scop
nd cleaned
the strict requirement of construction technology
末发生反弹现象出现麻坑。流平欠佳等缺陷。
ar some pitting. Static voltage should not be too high, the general control of 60-70Kv or so. If Voltage is too high, t atterns and larger patterns, the pattern is also small, and there are pits, end exposure and other defects
，其花纹会发生变小或不明显的变化，故一般建议美术型粉末的回收粉不要使用。要用也须经试验。从上述看虽然对其施工要求较严，但相wder, while not fully cured the mechanical properties are also greatly reduced. In addition, In view of specialty of a
之五十；粉末涂装工艺对涂装产品质量的影响也占百分之五十，其中前处理占百分之二十五，粉末喷涂和烘烤固化情况
y, both of powder coating material and coating all can impact product quality, in which the impact of powder coati
装工件的涂膜颜色产生干扰，影响涂膜色差。因此，更换涂料颜色品种时，一定要清扫干净噴粉室、喷枪、输粉管、供粉槽等喷粉系统，防oating or color. When the replacement of powder coating products which color difference too big, the cleaning of p
证上粉量使涂膜有足够遮盖力的涂膜厚度；另一方面各部位的涂膜厚度均匀，特别是不同配件之间的涂膜厚度，这样才能保证装配好涂装产achieve adequate hiding power of coating that easy to bring color difference problem of coating products. Theref
所以当烘烤温度超过这个温度范围时，很难达到涂膜色差要求。因此，一定要控制烘烤温度，必须保证在粉末涂料配方设计的范围内，如果 heat-resistant temperature limit to organic pigments and some inorganic pigments, especially the ingredients of i
。如果粉末涂料的烘烤固化时间过长，由于空气的氧化作用或粉末涂料成分中某些成分的热分解使粉末涂料中的部分成分发生化学变化，最ments and additives heat resistance in formula of the powder coating have certain limitations. The heat resistance
涂膜，达到装饰和防腐蚀的目的。
ion, crushing and screening and others.They are stable in storage in room temperature, through electrostatic spraying or fluidized bed coatin
集的负电荷，使粉末带上负电荷，并进入了电场强度很高的静电场，在静电力和运载气体的双重作用下，粉末均匀地飞向接地工件表面形成 electrostatic field between the gun and the work piece. When the compressed air as the carrier gas which send powder co air, if the scope is large and affects the surface quality, use sandpaper to sand, after that, spray o
Voltage is too high, the pockmark will appeared due to the phenomenon of powder rebound occurs which attach ther defects
然对其施工要求较严，但相信涂装过程中只要较好地把握以上因素，一定会达到理想的满意效果。
n view of specialty of art type powder’ production process, it is suggested that art type recycled powder shouldn’t
化情况占百分之二十五。因此，粉末涂装工艺对涂膜色差也有不可忽视的重要影响，具体来说涂装设备的清机程度、粉mpact of powder coating material on the quality of coating products accounted for 50 percent; The impact of powd
管、供粉槽等喷粉系统，防止旧粉对新粉的污染，避免对涂装产品质量的影响。如果有条件，对于颜色反差较大的产品，最好在不同噴粉室o big, the cleaning of powder spraying system is not clean, then the old powder will pollute the new powder that w
这样才能保证装配好涂装产品的色差要求。
ting products. Therefore, on the one hand , ensure that the amount of powder can make coating film has enough
料配方设计的范围内，如果超过这个温度限制，涂膜的颜色也容易超出规定色差范围。
lly the ingredients of in indoor powder coating, the heat-resistant temperature of some resins, curing agents and
部分成分发生化学变化，最终使涂膜泛黄或者由于某些副反应使涂膜变色，甚至涂膜机械性能下降，同时产生与标准色板的色差问题。因此. The heat resistance includes not only the heat-resistant temperature but also the holding time at the temperatur
dized bed coating, and then melted down after heated and baked to solidify to form a permanent bright and smooth co
匀地飞向接地工件表面形成厚薄均匀的粉层，再加热固化转化为耐久的涂膜。
s which send powder coating to the guiding rod of spray gun from powder barrels by powder pipe, The corona discharge is
ray once again or remove off the coating with the paint remover and luck powder again
d occurs which attached to th
e surface o
f work piece ,poor levelin
g and other defects
ed powder shouldn’t be put into use due to the pattern will be smaller or not obvious changes after Re spray of re
度、粉末喷涂效果、烘烤温度和时间的控制对涂膜色差的稳定性都有一定的影响。
t; The impact of powder coating process on the quality of coating products also account for the percentage of fifty
的产品，最好在不同噴粉室或不同涂装线上进行涂装，这样有利于清扫设备，有利于提高生产效率，有利于保证涂装产品质量，能够满足涂he new powder that will interfere the coating film color of coating work piece and affect color difference of film. The ating film has enough hiding power to form the coating film thickness .on the other hand, the coating thickness of
s, curing agents and additives is not high, so when the baking temperature is out of this temperature range, it is d
标准色板的色差问题。因此，控制好烘烤时间也是跟控制烘烤温度一样很重要的问题。
me at the temperature. If the powder coating baking curing time is too long, Because the oxidation of air or the th
oth coating film for decoration and anti-corrosion purposes
The corona discharge is generated in due to the guide rod is connected with the high-voltage negative pole, and the dense Re spray of recycled powder. If needed, it is also subject to testing before use. From above words
entage of fifty, of which pre-treatment accounted for 25 percent, powder coating and baking curin
涂装产品质量，能够满足涂膜色差的要求。
difference of film. Therefore, when the replacement of the color varieties of coating material. Please be sure to cl e coating thickness of other parts are uniform, especially between different parts, so that only can guarantee the c perature range, it is difficult to achieve the color difference requirements of coating film. Therefore, we must contr idation of air or the thermal decomposition of some components in the powder coating make chemical change of
ve pole, and the dense negative charge in the vicinity of, as a result. the powder with a negative charge and entered into t words we can see although have stringent requirements of construction but I believe that as long
curing accounted for 25 percent. Therefore, the powder coating process also has a significant im
. Please be sure to clean up the powder spraying chamber, spray gun, powder tube, powder tank and other powd y can guarantee the color difference requirement of coating products which assemble well
refore, we must control the baking temperature, must ensure that the formula of powder coating within design ran e chemical change of some components of powder coating, Finally make coating film yellow or due to some side
arge and entered into the field of electrostatic field with high strength, the powder evenly into the surface of the ground w long as good manage above factors in painting process, there is potentially to achieve the desire
ant impact on the film color, in particular, the cleaning degree of cleaning equipment, the effect of
r tank and other powder spraying system to prevent the new powder against old powder pollution to avoid the imp
ating within design range, if more than this temperature limit, the color of the coating film is also easy to exceed th or due to some side effects, and even mechanical properties of the coating film are decreased, and cause color
urface of the ground work piece to form uniform thickness of powder layer in the dual role of static electricity and carrier desired satisfactory results.
ect of powder coating, baking temperature and time control also has a certain influences on the s
ution to avoid the impact of coating product quality. If the conditions is available, the products of larger color diffe
also easy to exceed the specified range of color difference.
sed, and cause color difference problem with the standard color plate. Therefore, the control of baking time same
electricity and carrier gas, and reheating and curing into durable coating
the stability of the film’ color difference.
ts of larger color difference which the best way is coating in different powder coating chamber or coating line that l of baking time same as the baking temperature is also very important.