喷雾机第III部分–喷雾:波焊(分段大纲)第#5帖子

{0>Spray Fluxing is the most common way to flux a printed circuit board today.<}0{>喷雾助焊是今天用助焊剂喷涂印刷电路板最常见的方法。<0}{0>When spray fluxers were first developed they were clumsy, inefficient machines.<}0{>喷雾式的喷雾机最初开发时，它们是非常笨拙又无效的机器。<0}{0>They were messy and required a lot of maintenance.<}0{>它们非常肮脏，需要大量维护。<0}{0>In addition, spray fluxers require separate venting from the main portion of the wave solder machine and a “total loss” system is used, especially when using no-clean flux.<}0{>另外，喷雾式的喷雾机需要在波焊机中安装单独的排风设备，使用一种“总体损失的”系统，尤其是使用免洗助焊剂的时候。<0}{0>Ralph Woodgate's book The Handbook of Machine Soldering SMT and TH mentions that, "the main systems fall into the following categories:<}0{>Ralph Woodgate的书本机焊SMT与TH手册提到“主要的系统陷入下列分类范围:<0}

1. {0>The compressed air spray total loss system.<}0{>压缩空气喷雾总体的损失系统。<0}
2. {0>The ultrasonic spray total loss system.<}72{>超声波喷雾的总体损失系统。<0}
3. {0>The airless spray total loss system.<}86{>没有空气的喷雾总损失系统。<0}
4. {0>The drum and air knife spray recirculating system."<}0{>滚筒与风刀的喷雾循环系统。”<0}

{0>Some of the advantages of using a spray fluxer are:<}0{>使用喷雾式喷雾机的一些优点如下:<0}

• {0>The spray fluxer may be programmed to cover specific areas of the PCB.<}0{>喷雾式喷雾机经过编程可以覆盖PCB具体的领域。<0}{0>This is helpful if selective soldering is to be achieved.<}0{>如果可以选择焊接，这是有帮助的。<0}
• {0>The quantity of flux can be changed based on specific process characterizations.<}0{>助焊剂的数量可以根据具体的工艺特点改变。<0}

{0>Spray fluxers move perpendicular to the conveyor movement.<}0{>喷雾式助焊机随着运输机的运动而垂直运动。<0}{0>This, combined with the desire to apply the effective minimum amount of flux, ensures even and proper wetting.<}0{>这一点，加上使用有效最低数量的助焊剂，可以确保平均与适当的湿润。<0}{0>This is beneficial for many reasons, including:<}0{>有利方面有几点，包括:<0}

• {0>It conserves operational costs.<}0{>降低操作成本。<0}
• {0>Better wetting is achieved when there is less flux residue.<}0{>如果助焊剂残留物较少，可以达到更好的湿润性。<0}
• {0>Longer component leads are fluxed easily.<}0{>更长的元件引线容易施加助焊剂。<0}

{0>Next week I will be talking about The Total Loss System and Spray Fluxing.<}0{>下周我将讨论总损失系统与喷雾助焊。<0}

{0>*This is the third of six sections of Fluxers, a mini series part of the larger series entitled Wave Soldering (A Segmented Synopsis).<}97{>*这是有关喷雾机六个部分的第三部分，一个小系列，属于更大系列波焊(分段大纲)的一个小系列。<0}

{0>Image Source<}0{>图像来源<0}

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