彩鋼板是指彩涂鋼板，是一種帶有有機涂層的鋼板，可以說是人們較為熟悉的板材，當然使用時候會發(fā)生的質量問題是不可避免的，下面
濟南彩鋼小編來列舉幾項，提前了解并預防。
Color steel plate refers to color coated steel plate, which is a kind of steel plate with organic coating. It can be said that it is a familiar plate. Of course, the quality problems that will occur when used are inevitable. The following Jinan color steel editor will list several items to understand and prevent in advance.
彎曲性不良（T彎）
Poor bending (T-bend)
鋼材彎曲180度試驗時，加工部位的涂層發(fā)生龜裂及涂層剝離。
During the 180 degree bending test of steel, the coating on the processing part cracks and peels off.
發(fā)生原因： 1、前處理的掌握量過多。2、涂層厚度過厚。3、過度烘烤。4、下涂涂料同上涂涂料的制造廠家不同，或稀料的使用不當。
Causes: 1. Too much pre-treatment. 2. The coating thickness is too thick. 3. Over bake. 4. The lower coating is different from the manufacturer of the coating, or the thinner is improperly used.
邊部氣泡
Edge bubble
兩側沾有涂料，經(jīng)烘干，出現(xiàn)氣泡。
There is paint on both sides. After drying, bubbles appear.
發(fā)生原因：原材有毛刺沾有涂料多，兩邊出現(xiàn)縫隙。
Cause of occurrence: raw materials have burrs and paint, and cracks appear on both sides.
麻點
Pitting
特點：從外部混入的異物或灰塵在涂裝后,部分或全部表面,有米粒樣的突出。
Features: foreign matters or dust mixed from the outside will protrude on some or all surfaces after coating.
發(fā)生原因：1、涂料中混入其它種類或其它公司的涂料。2、涂料中有異物混入引起。3、前處理過程中水洗不良。
Causes: 1. The paint is mixed with other kinds of paint or paint from other companies. 2. It is caused by the mixing of foreign matters in the paint. 3. Poor washing during pretreatment.
橘皮
Orange peel
特點：已干燥的表面涂層象橘子皮一樣粗糙，不均勻。
Features: the dried surface coating is as rough and uneven as orange peel.
發(fā)生原因：1、濕膜過厚。2、涂料的黏度較高時。
Causes: 1. The wet film is too thick. 2. When the viscosity of paint is high.
耐溶劑性能差（MEK)
Poor solvent resistance (MEK)
特點：擦拭有點狀掉漆。
Features: there are dots of paint falling off after wiping.
發(fā)生原因：1、烘烤溫度沒有達到要求。 2、涂料的固化有問題。3、前處理清洗不干凈。
Causes: 1. The baking temperature did not meet the requirements. 2. There is a problem with the curing of the coating. 3. The pretreatment and cleaning are not clean.
縮孔
Shrinkage cavity
特點： 漆膜不平整，局部露底。
Features: the paint film is uneven and partially exposed.
發(fā)生原因：1、鋼帶表面不潔凈。2、底漆冷卻水不潔凈。3、涂料粘度沒達到上機要求。
Causes: 1. The steel strip surface is not clean. 2. The cooling water of primer is not clean. 3. The viscosity of the coating did not meet the requirements of the machine.
漏涂
Holiday coating
特點：面漆未涂上。
Features: topcoat is not applied.
發(fā)生原因：1、邊部面漆未涂上，基板板型不好或涂輥與大背輥間壓力不足。2、板面中間面漆未涂上，底漆冷卻后板面有水或其它異物。
Causes: 1. The edge finish paint is not applied, the base plate shape is not good, or the pressure between the coating roll and the large back roll is insufficient. 2. The middle finish of the plate surface is not painted, and there is water or other foreign matters on the plate surface after the primer is cooled.
塌卷
Collapse roll
特點：鋼卷卷取后在倉庫存儲時內徑變形。
Features: the inner diameter of the steel coil is deformed when it is stored in the warehouse after coiling.
發(fā)生原因： 1、鋼卷卷取后受外力的影響。2、收卷張力不正確。3、荷重不均。
Causes: 1. The steel coil is affected by external force after coiling. 2. The winding tension is incorrect. 3. Uneven load.
反粘
Anti adhesion
特點：開卷時有輕度剝離，底漆返沾會出現(xiàn)類似小米粒狀顆粒，涂面漆后表面凹凸不平。
Features: there is slight peeling when uncoiling, and there will be particles similar to millet particles when the primer is back stained, and the surface will be uneven after coating the top coat.
發(fā)生原因：1、卷取前冷卻不夠。2、烘烤不足。3、部分載重過大。
Causes: 1. Insufficient cooling before coiling. 2. Insufficient baking. 3. Part of the load is too large.
壓傷
Crush injury
特點：在涂敷之后的壓坑。
Features: pressure pit after coating.
發(fā)生原因：1、原料卷有壓傷。2、在涂敷之前通過各種輥子壓傷。3、在涂敷之后和涂料一塊的壓傷。
Causes: 1. The raw material roll is crushed. 2. Crush by various rollers before coating. 3. Crushing with paint after coating.
The quality problems in the use of color steel are as above. If you still have doubts about it, welcome to this website http://www.nbcmds.com Consult!
