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机械类外文翻译【FY116】绘画喷雾【PDF+WORD】【中文6000字】

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机械类外文翻译【FY116】绘画喷雾【PDF+WORD】【中文6000字】,机械类,外文,翻译,fy116,绘画,喷雾,pdf,word,中文
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英文资料翻译 题目 气流雾化喷枪的设计 专 业 名 称 机械设计制造及其自动化 班 级 学 号 078105104 学 生 姓 名 崔明超 指 导 教 师 熊丽娟 2011 年 03 月 22 日 nts 绘画喷雾 前言 这本书探讨的喷涂加工操作和其设备从许多观点,还有很多值得学会真正成为精通收于喷雾。最好的方式,成为在喷涂完成精通是只 是这样做!许多贸易技术和社区学院提供在喷雾课程整理,一个伟大的方法来提高自己的技能。很多的 “招数 “的涉及专业喷雾装订油漆和涂料。该这些材料制造商定期发布完整的书籍这些主题的。这些出版物均为特种油漆店,并会你提供相当大的细节。这些书籍也很多载有关于技术的信息表面准备。另一个重要来源信息,尤其是在设备的使用和选择当地喷涂加工设备制造商。没有书所能完全涵盖专家在深入了解设备,技术,维护和故障排除。从许多可用的信息资源对喷射主题整理。这是我们希望这本书将提供你一个开始对完善你的终结技能。最近除了资源可用喷雾装订万维网。许多制造商的代表和论坛是提问和回答可用。请访问我们的网站在和 。 关于这本书 . .这本书已经更新从 “美国广播公司的几次喷涂设备, “原本公布的咨询 DeVilbiss公司于 1954年。它着重于设备和技术喷涂加工。在原书的格式是提问和回答。我们保留该格式在这版本。这本书是围绕着一个空中喷雾主要成分系统 .喷枪,材料容器,软管,空气控制设备,压缩机,喷亭,口罩和短一节普通的清洁和其他信息来源。一深入了解有关材料在这本书 - 加上很多实际喷漆的做法 -应该让你处理只是喷漆的任何情况。虽然我们已作出努力要尽可能详细和这本书尽可能全面,做到心中有数这些设备和产品系统使用说明点完全基于咨询DeVilbiss技术。咨询 DeVilbiss是世界上最古老和最大的喷漆制造商设备,并一直保持自成立以来,领导本于 1888年。 目录 前进 . . . . .2 1。导言 . . . . . .3 表面制备 . . . .3 涂料的制备 . . . . .3 2。空气雾化喷雾 枪 . . . . . . . . .4 喷枪类型 .。 .5 鉴定及部分 功能 . . .。 .6 操作 . . . 9. 保养 . .。 . .11 故障排除 . . . . .13 3。材料容器 . . .16 4。软管和连接 .18 5。空中管制设备。 .20 6。呼吸器 . .。 . 22 7。空气压缩机 .。 . 23 8。喷漆室 . . .。 .25 nts1。简介 这本书是有关的 SelectIO 使用和保养 finishi 设备:喷漆枪,坦克,杯子,软管,压缩机,稳压器,喷漆室,呼吸器等,假设日你所熟悉的标准表面处理技术之前可能需要实际开始整理。它还 假设的基础知识对许多不同类型排和涂料提供。必需参数创建一个完美的结束固体表面的知识筹备,装修和喷雾涂装 设备。第一荃湾广泛覆盖的人其他书籍。制造商油漆和涂料都不见了大篇幅刊登informat产品。但是,即使是一个广泛的诺尔表面处理技术的保证专业完成。终点由必应用喷枪,所有的变数它的使用必须掌握。必要的设备,一终点 -喷雾枪,坦克杯,调节器,软管,压缩机,等等 -都必须相适应的工作以及 T对方。该设备万亩 使用和维护 prope如何用升值为什么它的运作方式。对于任何鳍时刻真理发生在触发拉。这本书着重于日时刻。 表面制备在表面完成翔涂装前很好地清理涂料生产商的指示要求它, surfa 应化学治疗。 打击过枪和粘性抹布除去 所有灰尘和污垢。无底漆或油漆金额将掩盖了严重准备表面。塑料零件可能包含静态电力从成型过程。这个静态吸引颗粒灰尘和污垢。 Elimina他们通过与 “治 destatisiz荷兰国际集团 “用一种特殊的空气吹断枪给人一种中性临时代办对气流。一个化学反静电处理也可涂料的制备今天的结束是非常复杂的化学制剂。它们包括溶剂和水性类型。有些人可能会需要增加溶剂吨形成正确的喷涂 viscosi 其他的可能只是要求除了第二个组成部分按照规定的比例获得 sprayable一致性。许多他们也有硬化剂或超视距化学品,添加到他们保证正确的色彩 搭配,光泽硬度,干燥时间或其它特性要生产出一流的光洁度。请确保你熟悉的具体的装修材料数据书不从各种混合材料制造商。请阅读并遵循仔细方向。所有的材料也必须完成配备有材料安全数据表( MSDS)。该数据提供正确的信息处理和处置材料。许多州都要求日数据表保存在文件通过使用第一步是了解典型和颜色的油漆项目要求。有了这个决定,按照制造商的它exactl指令准备如果您有任何怀疑浩继续进行,不猜!康泰克您的帮助油漆供应商。未经妥善处理的油漆会从来没有产生好成绩!的主要特点,油漆,多少片可能应用是它的粘度 .或一致性。随着 涂料制造商的指示将克您关闭,但对于专业结果,使用粘度杯。这是一个简单但很准确的方法测量涂膜厚度。用杯子,你可以瘦或减少油漆的确切所要求的一致性制造商。总是准备在一个干净的油漆,无尘环境。涂料有非凡的能力,拿起污垢。肮脏的涂料不仅会堵塞你的喷枪,但它也将毁了你粉刷。置身于其中的习惯始终油漆倒入杯中或通过油漆罐过滤。油漆是从来没有像它看上去干净。 2。空气雾化喷枪。 简介 喷枪是关键在整理系统组件。 是一个设计和精密制造工具。 每个 具体类型和大小设计来完成一定的,明确了任务范围。正如大多数其他地区的 finishin进行工作,并为正确的工具工作走一段很长的路向获得,挺专业的结果。本章将帮助你知道后者是在审查适当枪荷兰国际集团的常规空调和高体积 /低压喷枪设计中常用的结束,荷兰国际集团 - 吸饲料,饲料一重力 压力饲料。 它还将审查 枪的和不同类型在每个组件的设计。一个彻底的了解 系统之间的差异将 让你选择正确的枪,正确地使用它产生高光洁度和浓度,贡走向赢利 finishin运作。 喷枪类型 1。什么是空气喷枪?空气喷枪是一个工具, 采用压缩空气雾化 油漆或其他ntssprayable 材料并将之应用到表面。空气和材料进入枪 通过和独立的通道 混合在空气中的帽控制模式。 2。什么是空气的种类 喷枪? 空气喷枪可分为 以不同的方式。 第一种方法是由 位置的材料容器: 图 1显示了一个杯子枪 附加下面。 图 3显示了一个杯子枪 附上面。 图 4显示了一个物质浓度, tainer 一段距离其压力饲料枪。进给系统的材料类型也是枪分类方式:吸进 .提请材料与图 1枪的吸力。重力供稿 .材料的旅行下来,进行自身的重量和重力,如图 3。压送 .材料是美联储作为正压图 4。 枪也被列为无论外部或内部结构取决于空气型帽。 3。什么是吸进枪吗? 喷雾枪设计在其中压缩空气流创建在真空,空 气帽,提供一虹吸行动。大气在材料上的压力吸盘吸它的力量管,进枪,出液小费,它是由空气雾化帽。发泄孔盖在杯子必须打开。这种类型枪通常仅限于一夸脱,或体积更小,容量的容器和 中低粘度材料。 吸力很容易识别流体尖端稍被延长, 彼处的空气帽的脸,看到 图 2。 nts 图 2 -吸进空气帽吸进枪都适合许多颜色的变化,以及小材料的款项,如在 汽车面板 /保险杠修理和 “完成 “, touchup,或较低的生产经营。 4。什么是重力饲料枪吗? 本设计采用重力流从材料的杯子,这是安装以上的枪,进枪喷涂。没有流体皮卡管使用,由于流体出 口是在杯子的底部。这杯有一个排气孔在通往杯子的,必须继续开放。它仅限于三四盎司能力由于重量和平衡。重力枪是理想的饲料 如小应用 汽车面板 /保险杠修理和 “完成后, “点维修,或在有限的空间整理。他们需要不到一吸空饲料枪,通常较少过喷。 2。空气雾化喷枪(续) 一个咨询 DeVilbiss临提示:当使用重力进给系统,从吸尖缩小一个尺寸。如果吸系统调用的 0.070“使用 .055“或 .063“ 5。什么是压送枪吗? 在本设计中,冲洗液小费随着空气帽面(见图 5)。该材料是压在一个单独的杯,油箱或泵。这种压力迫使通过流 体尖端材料并感谢雾化空气帽 nts 图 4- 典型压送枪远程锅该系统通常使用当大量的材料的适用,当材料是太重而被从容器或抽走当快速申请。在生产喷涂生产厂或车队修补手术是一个典型的 使用压力进料系统 nts 6。什么是外部空气混合 帽子? 这把枪混合和雾化空气内外空气帽液。它可用于所有申请材料的类型,它是特别理想,当快干油漆喷涂等底漆和清漆。这也是时使用的是高光洁度理想。 7。什么是内部结构的帽子吗? 这个上限混合空气和物质前盖内的空气排出,他们。它通常用在低气压压力和卷用,或者慢干材料正在喷洒。 一个典型的例子是平面喷涂外墙涂料,油漆或境外的房子,一个小压缩机。内部结构帽很少使用精加工时,干燥速度快材料是被喷,或当高光洁度要求。 8。 HVLP的是什么? HVLP 的,或 High-Volume/Low 压力,采用高量空气(通常介于 15至 26立方英尺)发表在低压力( 10防扩散安全倡议或在空气帽较少)雾化油漆成软,低速 图案的颗粒。在许多情况下,不到 10磅,是必要的,以雾化。没有正确的安装采用更流畅比需要的空气压力生产所需的质量和流量将达到生产要求。因此,远低于材料丢失在喷涂,反弹反吹比常规空气喷涂。这就 是为什么 HVLP 的提供高得惊人传输效率(量油漆附着到基板相比,漆量喷)比喷雾系统使用更高的雾化压力。该喷枪 HVLP 的类似于喷枪的形状和标准运作。模型采用高进口压力( 35-80 psi)和在内部转换为低气压在被称为喷枪 HVLP的转换枪。有些 HVLP的模型,特别是那些使用涡轮来产生空气,不断引气尽量减少背压对的涡轮气流。空气帽设计类似是标准喷枪,与各种各样的空中指挥飞机雾化的液体流进的空气,雾化,因为它离开一角。 HVLP的日益普及和新的环保法规对于许多应用程序需要它。 HVLP的可用于宽各种材料,包括双组分涂料, 聚氨酯,丙烯酸树脂,环氧树脂,搪瓷,油漆,着色剂,底漆等 2。空气雾化喷枪(续) nts部分鉴定 功能 9。什么是主要零部件 一个喷枪? 10。时会发生什么扣动扳机? 触发器工作在两个阶段。初步触发运动空气阀打开,让空气流过枪。进一步触发运动从座位拉枪针在流体尖,允许流体材料流动。当触发被释放时,流体流停止在空气流通。这种超前 /滞后时间触发充分保证了操作喷雾当流体流动模式开始。这也保证了整个模式,直到流体的流动停止,因此没有粗雾化。 11。什么是空气的功能 帽子? 空气帽(见图 10)指示压缩的空气进入液体流 雾化,并形成喷雾模式。 (见图9) 有各种款式的帽子不同尺寸的生产和许多图案形状 12。有哪些优势 多射流的帽子吗? 这个上限的设计提供更好的雾化更粘稠材料。它允许较高的雾化压力要使用更多的用更少的危险粘性材料分裂喷型。它提供了更大的统一由于更好的均衡格局 风量和压力的上限。它还提供了更好的雾化为材料,可喷较低的压力。 nts 13。应如何将空气帽 选择? 以下因素必须浓度, sidered: A)型,粘度和体积 喷涂材料 二)大小和物体的性质,或表面喷(多个或大,口增加能力雾化更多的物质更快大对象的画)。更少 ,或更小的孔,通常需要更少的空气,生产规模较小喷雾模式,并提供以下材料。 (这些帽专为小画对象和 /或使用低速速度) c)物质进料系统中使用(压力,吸力或重力)四)液头的大小是用(大部分空气帽最好的工作某些流体头 /针组合) 五)量,每立方英尺空气分钟( CFM)和压力磅每平方英寸( psi)的利用,能。见咨询 DeVilbiss喷枪目录选择适当的空气帽 /液头 /针组合和典型的用途。 14。什么是函数流体针尖与针? 他们限制和直接的流量从物质到空气枪流。流体包括小费内部座位的圆锥液针,从而降低了流动材料,因为它关闭。 ( 参见图 11)。该材料的数量离开前的枪取决于粘度料,料液压力和流体的大小尖端张开时,提供针是从冰山赶下台。流体提示是在提供多种要妥善处理各种尺寸各类材料,流率和粘度 2。空气雾化喷枪(续) 15。什么是喷嘴结合? nts在实践中,空气帽,流体尖,针和挡板被选为一个单位,因为他们一起工作生产出的喷雾质量模式和完成。这四个项目为单位,被称为 喷嘴组合。 16。什么是标准的流体小费 大小和流量? 标准规格尺寸,对应尖端张开尺寸和流体流速: 经验法则优化流体 pressureis8-20磅。比这更大的压力通 常表示为有需要 nts较大的流体笔尖的大小。 17。如何流体针尖与针 大小确定了吗? 咨询 DeVilbiss流体提示和针头用字母标识脚踩尖和针。这些字母的识别组件该匹配。见适当的咨询 DeVilbiss喷雾为妥善枪目录选择流体针尖与针组合。 18。什么针尖与针液组合的大小是最普遍吗? 1.0, 1.1, 1.4和 1.8是最一般使用。 1.4和 1.6用于重力组合饲料,而 1.6和 1.8使用吸气饲料。饲料压力最常见的提示是为 1.1mm和 1.4毫米。 19。如何喷嘴组合的呢? 五种基本的考虑是, volved在选择喷嘴组合: 类 型和材料粘度被喷对象的物理尺寸被 成品 /风扇图案尺寸所需的速度 /光洁度正在使用的模型枪可用风量( CFM)和压力( psi)由压缩机 ( 1)的种类和粘度材料是被喷首先要考虑的因素。 经验法则 粘度越低的材料,较小的内径的流体的一角。 注:粘度转换图表可转换一粘度杯阅读到另一个任何材料或设备供应商。 ( 2)对象的物理尺寸被涂还必须考虑。作为一般规则,使用最大可能的喷雾模式符合对象的大小。请记住,不同空气帽提供各种图案特点。这可以减少同时喷洒时间和火炮数量通行证。 ( 3)下审议 评价喷嘴组合是的速度,终点会适用 和所需的水平质量。对于速度和覆盖范围,选择喷嘴组合,生产模式一样宽可能。当质量是决定因素,选择一个喷嘴组合,产生罚款雾化和一个较小的模式大小,从而提供了更大的应用控制。 ( 4)模型枪本身西港岛线限制了喷嘴的选择 组合。对于一个咨询 DeVilbiss吸进枪,有几种类型的喷嘴可这是适合精加工工序。这些 2。空气雾化喷枪(续) 流体喷嘴尖端开口从 .062“to.086“,并被设计来处理粘度高达 28秒 2号赞恩粘度杯。对于一个咨询 DeVilbiss压送枪,材料的数量出院取决于时珍粘度,内直径流体一角,软管长度和大小, 对材料和压力容器或泵。如果流体尖端张开太小油漆流速度会太高。如果流体尖端开口过大,你会失去控制奥雅纳从排放的物质 枪。对于大多数 HVLP 的枪,油漆流量应不超过一十六盎司每分钟。对于更高的流量,咨询咨询 DeVilbiss HVLP的喷雾枪目录。 ( 5)可供气是最后要考虑的因素。压力饲料消耗空气帽 7.0和 25.0立方英尺之nts间,根据设计。如果你的空气供应是有限的,因为一尺寸不足压缩机,或许多 其他气动工具在使用一次,枪会饿死的空气,生产不完全雾化和一个贫穷的完成。20。标准是什么饲料选择压力喷嘴? 而放电的流体 从每分钟吸盎司枪是相对稳定的饲料(主要是因为它确定受大气压力)时, flui 排出压力饲料枪的大小更取决于流体的内径尖上的油漆压力容器或泵。越大启用后,更流畅的出院时给定压力。如果流体尖 ID 是太次小从材料的数量流动枪,西港岛线的放电速度太高。空气,来自空气帽,将无法雾化得当造成中心大格局。如果流体尖端张开过大,将材料排放控制丢失。流体头 /空气盖组合必须相互匹配和手头的工作。喷枪目录包括图表来帮助你他们正确地匹配。21。金属液的秘诀是什么呢? 技巧是由以下金属: 一) 300-400级不锈钢为无腐蚀, 腐蚀性物质 二) Carboloy插入为极 研磨材料 22。什么是粘度? 液体的粘度是它的身体,或厚度,它是衡量其内部的流动阻力。粘度变化,并与类型温度的液体。任何引用特定的粘度测量必须伴随着相应的温度规格。最常见的测量用于确定粘度整理是流量(测量从赞恩秒,福特,费舍尔或其他粘度杯)。大小不同粘度杯可用。每杯有一个洞底部,指定一个确切的大小。使用粘度杯是设计处理的时间范围正在使用的材料。粘度控制是一个非常重要的而有效的方法来维持应用的效率和质量一致性。一直测量在每一批黏度材料混合,并确保材料温度是一样的,一般 70?到 80?楼粘度建议可能在给予镇静和厘泊( 1泊 = 100厘泊)。粘度转换可通过咨询一个完成粘度换算表。 23。什么是吊具调整, 彪阀?一种用于控制空气阀喇叭孔的调节从最大宽度喷型下一条狭窄或圆形图案(见图 8)。 24。什么是枪针调整?这一调整控制 距离液针允许收回其座位流体尖,后者更容易或通过减少材料的流体小费(见图14)。有压力饲料系统中,流体输送率应通过改变流体调整压力压力罐。使用实施小型流体调节旋钮和 /或临时流量控制。这将延长液压油寿命针头和针尖。 25。有哪些组成部分吸力和重力饲料系统?典型的吸力和重力饲料系统 包括:一吸进或重力饲料杯喷枪,空气压缩机(不显示),一组合过滤器 /空气调节器和空气软管(见图 12)。 ntsSeries 19 HVLP Spray Gun Owners Manual This Manual Covers 19 and 19I Spraygun Models Gun Overview Accusprays Series 19 Gun was designed from the inside out for HVLP use to deliver performance without compromise. This means achieving compliance with environmental regulations and delivering the fastest production speeds; generating substantial paint savings and producing a first class finish. The series 19 can connect directly to your high-pressure air hoses so set-up is fast and easy. With a reducer built right into the gun, high-pressure air is decompressed inside the gun. The series 19 has a 4.3:1 reduction ratio. This means that an inlet pressure of 43psi will deliver 10psi at the air cap. The 19 can be used with up to 43psi. With proper use and maintenance, your Accuspray Gun will deliver long trouble-free life and first class results. Table of Contents Topic Page Number Contents-Unpacking .3 General Safety / Safety Precautions4 ntsSet-up5 Hand Gun Use7 Maintenance 9 Component Replacement . 10 Overview 19 Propack 12 Products and Accessories: Needle Tips/Nozzles and Air Caps .14 Products and Accessories: Maintenance Kit .16 Hand Gun Parts Identification: Mini Regulator and Gauge .17 Hand Gun Parts Identification: Cup Assemblies .18 Hand Gun Parts Identification 19 Series. .20 Hand Gun Parts Identification 19I Series. . .21 Troubleshooting .22 (C) Copyright 2003 Accuspray Application Technologies, Inc. Cleveland, Ohio USA 800-618-6860 or 440-498-9677 Fax: 440-498-9815 Contents Unpacking Remove the components from the box. Inspect for concealed damage and missing items. If you discover any damage or missing pieces, contact your distributor immediately. Your Accuspray 19 Series spray gun package should include: 19 Series Spraygun Gun Wrench Tube of Gun Lube Port Plug Cleaning Brush 1/2 Pint or 1 Quart Cup (Optional) Series Spraygun The 19 series spraygun is for use with compressed air system. This superior performing spraygun offer the ultimate in the ease of use. Simply connect the gun to your existing high-pressure regulator air hose, and cup or fluid hose. 19I Series Industrial Spraygun The 19 series sprayguns offers the same features and benefits of the 19 series with the addition of an extended fluid tube. It is specifically designed for pressure fed applications from paint tanks and diaphragm pumps. General Safety Accusprays HVLP equipment is for professional use only. Hazards can occur from equipment misuse. Any misuse of the equipment or accessories, such as over pressurizing, modifying parts, using incompatible chemicals ntsand fluids, or using worn or damaged parts can cause serious bodily injury, fire, explosion or property damage. Please read and follow all General Safety, Safety Precautions and User Instructions. Never point a spray gun at anyone or any part of the body. Never place your hand or fingers in front of a spray nozzle. Never try to stop or deflect leaks with your hand or body. Never alter or modify any part of this equipment. A malfunction could result. Check your spray equipment regularly. Repair or replace worn or damaged parts immediately. Always use Accuspray HVLP replacement parts. Only these parts were designed to work with your equipment. Safety Precautions Solvents and coatings can be highly flammable to combustible, especially when sprayed. Adequate exhaust must be provided to keep the air free of accumulations of flammable vapors. Smoking must never be allowed in spray areas. Fire extinguishing equipment must be present in the spray area. Certain materials may be harmful if inhaled or if there is contact with the skin. Follow the requirements of the Material Safety Data Sheet supplied by the coating material manufacturer. Use a respirator whenever there is a chance of inhaling sprayed material. The mask must be compatible with the material being sprayed and its concentration. Safety equipment must be NIOSH approved. Certain solvents containing Methylene Chloride and Trichloromethane are not chemically compatible with aluminum or zinc. The solvents reaction can become violent and explosive. If you are in doubt whether a coating or cleaning material is compatible, contact your material supplier. Improper operation or maintenance may create a hazard. Personnel must be given training. Instructions and safety precautions must be read and understood. Comply with your local, state, and national codes governing ventilation, fire protection, operation, maintenance, and housekeeping. Set-up If you have a pressurized 1/2 pint or 1 quart cup, the sections on Gun/Cup Installation and External Check Valve Assembly below are very important for ensuring your gun operates efficiently. Gun/Cup Installation Thread the swivel nut of the cup lid onto the fluid inlet fitting of the spray gun. Tighten with an your gun wrench while applying counterforce with an 11/16 wrench on the fluid inlet fitting of the spray gun. Before fully tightening, make certain that the fluid tube is pointed forward. Attach the pressure tube from the pressure stem on the gun head to the cup lid. ntsCup Warnings 1/2 Pint and 1 Quart Pressure Cup Do Not Exceed 10 psi 2 Quart Pressure Cup Do Not Exceed 50 psi 2.5 Gallon Paint Tank Do Not Exceed 80psi Disconnect Atomizing Air Before Opening Cup Open Pressure Relief Screw Before Opening Cup Note: Spray solvent through the gun before using it for the first time External Check Valve Assembly To install the assembly, attach the short pressure tube hose from the check valve assembly to the gun. Loop the tube and attach it to the pressure stem of the cup. The loop plays an important role, which allows you to see any material that may be working its way back up the tube. A properly working check valve is required for uninterrupted spraying. The advantage of the external check valve is that in its remote location (away from the paint) it is not prone to becoming jammed. The external check valve is a wear part and it will require replacement after it becomes contaminated. The normal life expectancy is from one week to three months, depending on its care. Set-Up Continued Attaching Your High-Pressure Air Hose When attaching your high pressure air hose (5/16 or larger) to the gun, use your gravity gun wrench, or a 9/16 open end wrench to apply counter force to the air inlet fitting while tightening (or removing) your high pressure air hose with a 5/8 open end wrench. This will prevent damage to the air inlet tube inside the gun. High-Pressure Air The high-pressure air into the gun is decompressed inside the gun on average, at approximately a 4.3 to 1 reduction ratio. The high-pressure regulator setting depends on the atomizing set and air cap ntsselected, and the desired result. See Guidelines for Setting Inlet Pressure on page 8. Caution: The fluid inlet fitting, and the air inlet fitting are not removable components. Do not remove or attempt to service the fluid inlet fitting or the air inlet fitting. If you wish to change to a quick disconnect configuration at the air inlet, adapt to the air inlet fitting and always apply counterforce to the air inlet fitting while tightening (or removing) a fitting or hose. First Time Use Spray solvent through the gun before using it for the first time. This will remove any contaminants that may have entered the fluid passage. Hand Gun Use Gun Adjustments The fan size is regulated by the fan adjustment knob located on the side of the gun. With the gun pointed at your target, turn the knob toward you until it stops. This is the fully closed position. Turning the knob away from you increases the fan air. The fluid flow is controlled by the needle adjustment screw located at the rear of the gun. Turning the knob clockwise will close down the fluid flow, minimizing needle travel (trigger pull). Turning the knob counterclockwise will increase the fluid flow, maximizing needle travel (trigger pull). With the first thread of the needle adjustment screw showing from the gun body (approximately 4 counterclockwise turns from closed) you will have full needle travel. Please note that, when closing down the needle adjustment screw, when the needle travel has stopped, further tightening will damage the needle tip and will not aid in adjustment. As a starting point, open the fan adjustment knob between 1/4 and 1/2 turn. Set the needle adjustment screw so that the first thread is showing from the gun body. This will give you approximately an 8 inch wide pattern, at 8 ntsinches from your target (depending on air cap & pressure setting). Fine- tuning of these adjustments will be based on your material and technique. A small round pattern can be achieved by closing down the fan air adjustment, triggering the gun lightly, and maintaining a distance of 2 to 4 inches from your target. Gun Use - Continued Spray Technique Proper spray technique is very important to achieve a good finish. Always spray at a distance of 6 to 8 inches away from your target. Keep the gun parallel to your target throughout the entire pass. More detailed spraying can be done with the gun as close as 1 inch from the target. Make sure your wrist remains firm during each pass. Trigger the gun only after your pass begins, and release the trigger before stopping your motion. Do not angle the gun upward or downward while spraying. Angled spraying will develop an uneven paint buildup. Overlap your passes approximately 50% for an even finish. Always be certain to thin your material with the proper solvent, and to follow the recommendations of the materials manufacturer. Guidelines for Setting Inlet Pressure Your 19 series spraygun requires lower than expected inlet pressures to produce excellent atomization and desired speed of application. The chart below shows recommended starting points for setting inlet pressures at the gun. ntsTypical Application Atomizing Set Inlet Pressure (At Gun) Base Coats .028/#5 25 - 30psi Medium Solids Bases .028/#5 25 - 30psi High Solids Clears .036/#6 35 - 43psi Single Stages .043/#7 30 - 35psi Primers .051/#9 25 - 30psi Stains .028/#5 25 - 30psi Medium Solids Lacquers .036/#6 35 - 40psi High Solids Wood Finishes .043/#7 35 - 43psi High Solids Urethanes/Epoxies .043/#7 30 - 35psi Daily Maintenance Gun Cleaning Your gun is made from aluminum, and it contains aluminum components. Certain solvents containing Methylene Chloride and Tricloromethane are not chemically compatible with aluminum. If you are in doubt whether a chemical coating is compatible, contact your material supplier. It is very important to clean your gravity gun and cup after every use. Adding a small amount of solvent to a clean cup and triggering the gun can clean the fluid passage. Do this with the air cap removed so you can recapture the spent solvent for proper disposal. The air cap should be cleaned by soaking or by using a soft brush. Never use a hard tool that may damage the air cap holes. Clean the air cap holes with a wooden tooth pick or pipe cleaner. The smallest amount of damage to the air cap holes can affect the spray pattern. Your gun and cup may be cleaned in a gun washer by removing the cup and filter, and inverting the gun. Limit the time in a gun washer to a maximum of 5 minutes. Some solvent may enter through the air inlet fitting. This will not damage the gun, and the excess solvent may be blown out with air. Cup Cleaning It is also very important to clean your cup after every use. Before removing your cup lid from the cup, be sure to relieving the cup pressure through the relief valve. Unscrew the cup lid and remove the remaining material from the cup. Rinse the cup with a suitable solvent. Gasket Replacement Remember that the cup is a pressure cup. The gasket must be in good condition. The lid must be firmly seated to the cup to prevent air and fluid leakage. Inspect the gasket, lube the gasket channel, and pay attention to the fit with each use. Replace the gasket when necessary. Lubrication After every cleaning of the gun, you must lubricate the moving ntscomponents. Cleaning washes away the lubricants that protect the friction points. Component Replacement With regular cleaning and lubrication, complete disassembly of your spray gun should seldom be required. When it becomes time for a complete overhaul, or a part requires replacement, please follow these instructions. General Close your high-pressure air source down. Remove your high- pressure air hose remembering to always apply counterforce to the air inlet fitting (see Set-up, Attaching Your High Pressure Air Hose). Dispose of any paint in your cup, and flush and clean your gun (see Daily Maintenance, Gun Cleaning). Fluid Nozzle, Needle Tip & Needle Shaft With the retaining ring and air cap removed, unscrew the fluid nozzle using your gun wrench #97-047. Pull and hold the trigger during this to retract the Delrin needle tip. Using the gun wrench prevents scoring of the fluid passage and gun body casting during replacement. Release the trigger and unscrew the delrin needle tip. You can replace the needle tip at this point, remembering to retract the needle before reinstalling the fluid nozzle, or proceed with further disassembly. To remove the needle shaft, unscrew and remove the needle adjustment screw and the needle adjustment spring. You may now pull the needle out of the gun with just your fingers. If the needle does not pullout freely, loosen the packing nut slightly. Your gun wrench will accomplish this with the trigger still attached to the gun. Trigger Removal To remove the trigger, you must have first removed the fluid needle as described above. With the fluid needle removed, locate the two E-rings on the right side of the trigger. Slide off the two E-rings with a small flat-blade ntsscrewdriver. The pivot pin (upper), and the trigger pin (lower) will now slide out to the left side of the gun, and the trigger is free to be removed. Note that left and right orientation is not critical at reassembly. Packing Nut Spacer and Packing Unscrew and remove the needle adjustment screw and the needle adjustment spring. Pull the needle out of the gun with your fingers. If the needle does not pull out freely, loosen the packing nut. Remove the packing nut with your gun wrench. The compression spring, spacer, needle guide, and seal should fall freely from gun. If you experience difficulty with removal, remove trigger pin and firmly tap the rear of the gun on a block of wood. Then remove the seal with an o-ring pick or similar narrow instrument. See Figure 1. Component Replacement-Continued Fan Air Knob To remove the fan air knob, and to lubricate the fan air stem threads, have ready a 3/64” hex key. Unscrew and remove the fan air adjustment screw using the hex key, and lift the fan air adjustment knob. Using your gun wrench, unscrew and remove the fan air fitting form the gun body. This will lift out from the gun body as an assembly. The threads of the fan air stem may now be lubricated with gun lube. See Figure 2. nts Component Replacement-Continued Grasp the valve stem and pull it forward. Note the removal of the valve stem cap is not required. The valve stem will pull out from the valve seat and out of the gun through the seal housing. The valve seat can be removed from the gun by gently reinserting the valve stem into the seal housing to “ unseat” the valve seat. The valve seat will drop out of the valve cavity. See Figure 3. Seal Housing Replacement Using your gun wrench, unscrew and remove the seal housing. The seal housing subassembly contains a snap ring. This is the only area that a special tool is required. The snap ring requires a size 100 tool. With the snap ring removed, lift out the spacer, lip seal, and clean the seal housing cavity. Note the orientat
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本文标题:机械类外文翻译【FY116】绘画喷雾【PDF+WORD】【中文6000字】
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