涂料知识：粉末涂料术语(二)

Back Ionisation 反电离
A condition, which may occur during electrostatic application of powder coating where excessive build up of charged powder particles limits further powder to be deposited onto the substrate. A pockmarking pattern usually occurs on the powder surface.
一种情形，出现在静电粉末涂装过程中，沉积在基材上的粉末超出了充电粉末粒子的极限，在粉末的表面会出现一些麻坑现象。
Bell 钟罩
Electrostatic spray device whose applicator is bell shaped. Centrifugal force throws the powder off its edge into a fine pattern. The charged particles are then attracted to the work surface.
静电喷涂装置，呈钟罩型，有效地克服了地心引力而形成精细结构，从而充电的粒子吸附到工件的表面。
Binder 捆绑剂
The portion of the powder formulation that forms the primary strength of the film. It binds pigments and additives into a solid film and to the substrate.
在粉末涂料配方中，构成涂膜的主要成分，它用以连接颜料和助剂，在基材上形成固体涂膜。
Blast Cleaning 喷抛清理
Removal of surface contamination and corrosion products by use of air and mechanical abrasives (also referred to as sand or shot blasting).
使用空气和研磨机移除污染物和腐蚀产物（也称为喷砂或抛丸处理）。
Blistering Bubbles鼓泡
formed under the cured powder film, usually caused by the expansion of trapped air, moisture or corrosion.
在固化的涂膜下面形成，一般由空气、潮气或腐蚀导致。
Blooming喷霜现象
A hazy appearance on the surface of a coating.涂层表面的一个模糊的外观。
Bridging 搭桥能力
The ability of a finish to cover cracks, voids or small gaps without a break in the film.
在涂膜中避免小的裂纹或断裂，避免爆裂的能力。
BTU British Thermal Unit英热单位
The amount of heat required raising the temperature of 1 pound of water by 1 0F.
每升高1磅水
Bulk Density表观密度10F所需要的热量。
Mass per unit of volume in powder form, including the air trapped between the particles.

每单位体积粉末的质量，包括粒子之间的空气。
Caking 结块
Agglomerations of powder on fluid bed walls or within the powder delivery system.
粉末在流化床壁上或在粉末输送系统中聚集。
Calorie 卡
Quantity of heat that will raise the temperature of 1 gram of water from 14.5 to 15.5oC.
提高1克水从15.5到15.5摄氏度所需要的热量。
Cartridge Booths 滤芯
A type of recovery booth that incorporates a cartridge filter system to collect overspray powder. 一个过滤收集过喷粉末的一体化装置。