Organization and production of powder spraying coating

對于小批量工件，一般采取手動噴粉裝置，而對于大批量工件，一般采用手動或自動噴粉裝置。無論是手動噴粉或自動噴粉，把住質(zhì)量關(guān)是非常重要的。要確保被噴工件著粉均勻厚度一致，防止薄噴漏噴擦落等缺陷。

For small batch workpieces, manual powder spraying devices are generally used, while for large batch workpieces, manual or automatic powder spraying devices are generally used. Whether it is manual or automatic powder spraying, it is very important to control the quality. To ensure that the sprayed workpiece has uniform powder coating and consistent thickness, and to prevent defects such as thin spray, leakage, and friction.

在涂裝生產(chǎn)線這一工序，還應(yīng)注意工件之掛鉤部分，在進(jìn)入固化之前，應(yīng)盡可能將附著其上的粉末吹掉，防止掛鉤上之多余粉末固化，有的對固化前去掉余粉確有困難時，應(yīng)及時剝離掛鉤上已固化之粉膜，從而確保掛鉤導(dǎo)電良好，以利下批工件易于著粉。

In the process of coating production line, attention should also be paid to the hook part of the workpiece. Before entering the curing process, the powder attached to it should be blown off as much as possible to prevent excess powder from solidifying on the hook. When it is difficult to remove excess powder before curing, the solidified powder film on the hook should be peeled off in a timely manner to ensure good conductivity of the hook and facilitate the next batch of workpieces to easily catch powder.

涂裝線前處理工段的生產(chǎn)管理

Production management of the pre-treatment section of the painting line

前處理有手動簡易工藝和自動前處理工藝，后者又分自動噴淋和自動浸噴兩種工藝。工件在噴粉之前必須進(jìn)行表面處理去油去銹。在這一工段所用藥液較多，目前較為環(huán)保產(chǎn)品有無磷除油劑硅烷陶化劑鈍化劑等等一系列無磷產(chǎn)品。

There are two pre-treatment processes: manual simple process and automatic pre-treatment process, which are further divided into automatic spraying and automatic immersion spraying. The workpiece must undergo surface treatment to remove oil and rust before powder spraying. There are a lot of fluids used in this section, and currently there are a series of environmentally friendly products such as phosphorus free degreasers, silane ceramic passivators, and other phosphorus free products.

在涂裝生產(chǎn)線前處理工段或車間，第一要注意的就是制定必要的涂裝前處理藥劑購買運(yùn)輸保管和使用制度，給工人提供必要的保護(hù)著裝，安全可靠的盛裝搬運(yùn)配置器具，以及制定萬一發(fā)生事故時的緊急處理措施搶救辦法。其次，在涂裝生產(chǎn)線前處理工段，由于存在一定量的廢氣廢液等三**質(zhì)，所以在環(huán)保措施方面，必須配置抽氣排氣排液和三廢處理裝置。

In the pre-treatment section or workshop of the coating production line, the first thing to pay attention to is to establish necessary regulations for the purchase, transportation, storage, and use of pre-treatment agents, provide workers with necessary protective clothing, safely and reliably store and transport equipment, and develop emergency measures and rescue methods in case of accidents. Secondly, in the pre-treatment section of the coating production line, due to the presence of a certain amount of waste gas, liquid, and other three wastes, it is necessary to configure exhaust and liquid extraction and three waste treatment devices in terms of environmental protection measures.

前處理過的工件質(zhì)量，由于前處理液及涂裝生產(chǎn)線工藝流程不盡相同，其質(zhì)量當(dāng)有差異。處理較好的工件，表面油銹去盡，為了防止短時間內(nèi)再次生銹，一般應(yīng)在前處理后幾道工序，進(jìn)行硅烷陶化或磷化處理：在噴粉前，還應(yīng)將已處理好的工件進(jìn)行干燥，去其表面水分。小批量單件生產(chǎn)，一般采用自然晾干曬干風(fēng)干。而對于大批量之流水作業(yè)，一般采取低溫烘干，采用烘箱或烘道。

The quality of pre processed workpieces may vary due to differences in pre-treatment fluids and coating production line processes. A well treated workpiece should have its surface rust removed. In order to prevent rusting in a short period of time, it is generally necessary to undergo silane ceramic or phosphating treatment in several steps after pre-treatment. Before powder spraying, the processed workpiece should also be dried to remove surface moisture. Small batch single piece production generally adopts natural air drying, sun drying, and air drying. For large-scale assembly operations, low-temperature drying is generally adopted, using an oven or drying channel.

涂裝線固化工序生產(chǎn)管理

Production Management of Coating Line Solidification Process

這一工序應(yīng)注意的事項(xiàng)有：噴好的工件，如果是小批量單件生產(chǎn)，進(jìn)固化爐前注意防止碰落粉末，如有擦粉現(xiàn)象，應(yīng)及時補(bǔ)噴粉末。烘烤時嚴(yán)格工藝及溫度時間控制，切實(shí)注意防止色差過烘或時間過短造成固化不足。

The precautions to be taken in this process include: for sprayed workpieces, if they are produced in small batches, before entering the curing furnace, attention should be paid to preventing the powder from falling off. If there is any powder wiping phenomenon, the powder should be sprayed in a timely manner. Strictly control the process and temperature time during baking, and pay attention to preventing insufficient curing caused by excessive color difference or short baking time.

對于大批量自動輸送的工件，在進(jìn)烘道前同樣要仔細(xì)檢查是否漏噴噴薄或局部擦粉現(xiàn)象，如發(fā)現(xiàn)不合格件，應(yīng)把好關(guān)防止進(jìn)入烘道，盡可能取下重噴。如個別工件因薄噴不合格，在固化出烘道后可以重噴再次固化或者直接使用脫漆劑。

For large batches of automatically transported workpieces, it is also necessary to carefully check whether there is any missed spraying or local powder wiping phenomenon before entering the drying channel. If unqualified parts are found, they should be properly closed to prevent them from entering the drying channel, and it is best to remove and re spray them as much as possible. If individual workpieces are not qualified due to thin spraying, they can be re sprayed and cured after curing out of the drying channel or directly used with paint remover.

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