在鋁板的擠壓過程中，很容會出現(xiàn)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(xiàn)在就由鋁板生產(chǎn)廠家為您排異解惑吧！
In the process of aluminum plate extrusion, it is easy to appear surface peeling or bubbles. What is the reason? How to eliminate it? Now let the aluminum plate manufacturer solve the problem for you!
什么是氣泡或起皮：在制品表面出現(xiàn)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 bubble or flaking: convex bubble appears on the surface of the product, common in the head and tail, complete called bubble, has broken called peeling.
一、鋁板擠壓產(chǎn)生氣泡、起皮的原因
1、 Causes of air bubble and peeling during extrusion of aluminum plate
1.擠壓筒、擠壓墊磨損超差，擠壓筒和擠壓墊尺寸配合不當(dāng)，使用的墊片直徑差超過允許值；
1. The wear of extrusion cylinder and cushion is out of tolerance, the size of extrusion cylinder and extrusion pad is not matched properly, and the diameter difference of 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. The extrusion cylinder and pad are too dirty, with oil, moisture, graphite, etc;

3.潤滑油中含有水；
3. The 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. There are too many grooves on the surface of the ingot, which are too deep, or there are pores and sand holes on the surface of the ingot, and the structure is loose and greasy;
5.更換合金時，筒內(nèi)未清理干凈；
5. The cylinder is not cleaned when the alloy is replaced;
6.擠壓筒溫度和擠壓鑄錠溫度過高；
6. The temperature of extrusion cylinder and ingot is too high;
7.鑄錠溫度、尺寸超過允許負(fù)偏差；
7. The ingot temperature and size 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(nèi)排氣不完全，或操作不當(dāng)，未執(zhí)行排氣工序；
8. Too long ingot, too fast filling, uneven ingot temperature, resulting in non drum filling, so that the exhaust in the cylinder is not complete, or improper operation, and the exhaust process is not carried out;
9.模孔設(shè)計不合理，或切殘料不當(dāng)，分流孔和導(dǎo)流孔中的殘料被部分帶出，擠壓時空隙中的氣體進(jìn)入表面。
9. The design of die hole is unreasonable, or the cutting of scrap is improper. The residual material in the diversion hole and diversion hole is partially carried out, and the gas in the space gap enters the surface during extrusion.
二、鋁板擠壓產(chǎn)生氣泡、起皮的消除方法
2、 Elimination of air bubble and peeling during extrusion of aluminum plate
1.合理設(shè)計擠壓筒和擠壓墊片的配合尺寸，經(jīng)常檢查工具尺寸，保證符合要求，擠壓筒出現(xiàn)大肚要及時修理，擠壓墊不能超差；
1. Reasonably design the matching size of the extrusion cylinder and the extrusion gasket, check the tool size regularly to ensure that they meet the requirements, repair the big belly of the extrusion cylinder in time, and the extrusion pad shall 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. Clean the cylinder thoroughly when replacing the alloy;
4.經(jīng)常檢查設(shè)備和儀器，防止溫度過高、速度過快；
4. Check the equipment and instruments frequently to prevent the temperature from being too high and the speed too fast;
5.嚴(yán)格執(zhí)行工藝規(guī)程和各項制度；
5. Strictly implement the process procedures and systems;
6.合理設(shè)計、制造工模具，導(dǎo)流孔和分流孔設(shè)計成1°-3°內(nèi)斜度；嚴(yán)格操作，正確剪切殘料和完全排氣。
6. Reasonable design and manufacture of tools and moulds, the diversion hole and the diversion hole should be designed with an internal slope of 1 ° to 3 ° and the operation should be strictly carried out to cut the residual materials correctly and exhaust completely.
通過專家的答疑解惑，相信大家對鋁板擠壓產(chǎn)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(chǎn)中避免這些問題，就能減少損耗，提高成品率。
Through the expert's question and answer, I believe everyone has a deep understanding of the causes and elimination methods of bubbles and peeling in aluminum plate extrusion. If we avoid these problems in daily production, we can reduce the loss and improve the yield.