When the cable tray wiring adopts steel pipe wiring, the steel pipe shall be left on the floor, and fireproof blocking material shall be added after wiring.

一、濟南電纜橋架靜電噴塑工藝

1、 Electrostatic plastic spraying process of Jinan cable bridge

1.目的：去除工件表面的油污、灰塵、銹跡，并在工件表面形成一層抗腐蝕的“磷化層”，使噴涂涂層具有附著力。

1. Purpose: remove oil, dust and rust on the surface of the workpiece, and form a corrosion-resistant "phosphating layer" on the surface of the workpiece to make the sprayed coating have adhesion.

2.過程：除油、除銹、磷化、鈍化。經前處理后不僅表面無油、銹跡、塵埃，而且表面原本銀白而有光澤的表面也會產生均勻而粗糙的不簡單銹斑灰磷化膜，既防銹又能增加噴塑層的附著力

2. Process: degreasing, derusting, phosphating and passivation. After pretreatment, not only the surface is free of oil, rust and dust, but also the original silver white and shiny surface will produce uniform and rough non simple rust spot gray phosphating film, which can not only prevent rust, but also increase the adhesion of plastic spraying layer

二、靜電噴霧法

Two. Electrostatic spray method

1.目的：將粉末涂料均勻地噴涂在工件表面，特殊工件(包括簡單靜電屏蔽的方位角)，大概選用高性能靜電噴塑機來完成噴涂。

1. Purpose: evenly spray the powder coating on the surface of the workpiece. For special workpieces (including the azimuth of simple electrostatic shielding), high-performance electrostatic spraying machine is probably selected to complete the spraying.

2.工藝：應用靜電吸附原理，在工件表面均勻地噴上一層粉末涂料，落粉回收系統，過篩后再使用。

2. Process: apply the principle of electrostatic adsorption, evenly spray a layer of powder coating on the surface of the workpiece, drop the powder recovery system, and then use it after screening.

三、高溫進行養護

3、 Curing at high temperature

1.目的：加熱工件表面的粉末涂料規定溫度，并相應進行保溫一段時間，使之熔化、流平、固化，達到所需的工件表面功能。

1. Purpose: heat the powder coating on the workpiece surface to the specified temperature, and keep it warm for a period of time to melt, level and solidify it, so as to achieve the required function of the workpiece surface.

2.處理過程：將噴涂件置于固化爐內加熱預定溫度(通常為185度)，并在相應的時間(15分鐘)進行保溫;打開爐門，使產品冷卻。

2. Treatment process: place the sprayed parts in the curing furnace, heat them to the predetermined temperature (usually 185 degrees), and keep them warm at the corresponding time (15 minutes); Open the furnace door to cool the product.

四、裝修處置：

4、 Decoration disposal:

通過靜電噴涂，使工件達到特定的外觀效果，如：各種木紋、斑紋、長臉等。

Through electrostatic spraying, the workpiece can achieve specific appearance effects, such as various wood grain, speckle, long face, etc.

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