鋁板擠壓表面起皮起泡怎么辦？
　　What about the blistering on the extruded surface of aluminium sheet?
　　在鋁板的擠壓過程中，很容會出現表面起皮或氣泡，到底是什么原因造成的呢？該用什么方法來消除呢？現在就由鋁板生產廠家為您排異解惑吧！
　　In the extrusion process of aluminium sheet, surface peeling or bubbles are very likely to occur. What is the cause? What method should be used to eliminate it? Now it's up to the aluminium plate manufacturer to dispel your disagreement and solve your confusion for you! ________
　　什么是氣泡或起皮：在制品表面出現凸形的泡，常見于頭、尾部，完整的叫氣泡，已破裂的叫起皮。
　　What is bubbles or peeling: Bubbles with convex shape appear on the surface of the product, which are common in the head and tail. The complete bubbles are called bubbles, and the cracked ones are called peeling.
　　一、鋁板擠壓產生氣泡、起皮的原因
　　1. Causes of bubble and peeling in aluminium sheet extrusion
　　1.擠壓筒、擠壓墊磨損超差，擠壓筒和擠壓墊尺寸配合不當，使用的墊片直徑差超過允許值；
　　1. The abrasion of the extrusion cylinder and the extrusion pad is excessive, the dimension of the extrusion cylinder and the extrusion pad is not matched properly, and the diameter difference of the gasket used exceeds the allowable value.
　　2.擠壓筒和擠壓墊太臟，粘有油污、水分、石墨等；
　　2. Extrusion cylinder and cushion are too dirty, sticky with oil, moisture, graphite, etc.
　　3.潤滑油中含有水；
　　3. Lubricating oil contains water;
　　4.鑄錠表面鏟槽太多，過深，或鑄錠表面有氣孔、砂眼，組織疏松、有油污等；
　　4. The ingot surface has too many troughs, too deep, or there are air holes and sand holes on the ingot surface, loose structure, oil stain and so on.
　　5.更換合金時，筒內未清理干凈；
　　5. When the alloy is replaced, the cylinder is not cleaned up.
　　6.擠壓筒溫度和擠壓鑄錠溫度過高；
　　6. Extrusion cylinder temperature and extrusion ingot temperature are too high.
　　7.鑄錠溫度、尺寸超過允許負偏差；
　　7. The temperature and size of ingot exceed the allowable negative deviation.
　　8.鑄錠過長，填充太快，鑄錠溫度不均，引起非鼓形填充，因而筒內排氣不完全，或操作不當，未執行排氣工序；
　　8. The ingot is too long, fills too fast, the ingot temperature is uneven, which causes non-drum filling, so the exhaust in the barrel is incomplete, or the operation is inappropriate, and the exhaust process is not carried out.
　　9.模孔設計不合理，或切殘料不當，分流孔和導流孔中的殘料被部分帶出，擠壓時空隙中的氣體進入表面。
　　9. The die hole design is unreasonable or the cutting residue is improper. The residue in the shunt hole and the diversion hole is partially taken out, and the gas in the space enters the surface during extrusion.
　　二、鋁板擠壓產生氣泡、起皮的消除方法
　　2. Elimination of Bubbles and Peeling in Aluminum Plate Extrusion
　　1.合理設計擠壓筒和擠壓墊片的配合尺寸，經常檢查工具尺寸，保證符合要求，擠壓筒出現大肚要及時修理，擠壓墊不能超差；
　　1. Reasonably design the matching size of extrusion cylinder and gasket, check the tool size regularly to ensure that it meets the requirements, and repair the big belly of extrusion cylinder in time, so that the gasket can not exceed the tolerance.
　　2.工具、鑄錠表面保持清潔、光滑和干燥；
　　2. Keep the surface of tools and ingots clean, smooth and dry.
　　3.更換合金時，徹底清筒；
　　3. When replacing the alloy, the cylinder should be cleaned thoroughly.
　　4.經常檢查設備和儀器，防止溫度過高、速度過快；
　　4. Check equipment and instruments frequently to prevent excessive temperature and speed.
　　5.嚴格執行工藝規程和各項制度；
　　5. Strict implementation of process regulations and systems;

                        
　　6.合理設計、制造工模具，導流孔和分流孔設計成1°-3°內斜度；
　　6. Reasonable design and manufacture of tools and dies, diversion holes and diversion holes are designed into 1-3 degrees of inclination;
　　嚴格操作，正確剪切殘料和完全排氣。
　　Strict operation, correct cutting of residue and complete exhaust.
　　通過專家的答疑解惑，相信大家對鋁板擠壓產生氣泡、起皮的原因及消除方法都有了深刻的了解，在日常生產中避免這些問題，就能減少損耗，提高成品率。
　　Through the answers and answers of experts, we believe that we have a deep understanding of the causes of bubble and peeling in aluminium sheet extrusion and the elimination methods. To avoid these problems in daily production, we can reduce the loss and improve the yield.