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铝板挤压表面起皮起泡怎么办

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  铝板挤压表面起皮起泡怎么办?
  What about the blistering on the extruded surface of aluminium sheet?
  在铝板的挤压过程中,很容会出现表面起皮或气泡,到底是什么原因造成的呢?该用什么方法来消除呢?现在就由铝板生产厂家为您排异解惑吧!
  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! ________
  什么是气泡或起皮:在制品表面出现凸形的泡,常见于头、尾部,完整的叫气泡,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、铝板挤压产生气泡、起皮的原因
  1. Causes of bubble and peeling in aluminium sheet extrusion
  1.挤压筒、挤压垫磨损超差,挤压筒和挤压垫尺寸配合不当,使用的垫片直径差超过允许值;
  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.挤压筒和挤压垫太脏,粘有油污、水分、石墨等;
  2. Extrusion cylinder and cushion are too dirty, sticky with oil, moisture, graphite, etc.
  3.润滑油中含有水;
  3. Lubricating oil contains water;
  4.铸锭表面铲槽太多,过深,或铸锭表面有气孔、砂眼,组织疏松、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.更换合金时,筒内未清理干净;
  5. When the alloy is replaced, the cylinder is not cleaned up.
  6.挤压筒温度和挤压铸锭温度过高;
  6. Extrusion cylinder temperature and extrusion ingot temperature are too high.
  7.铸锭温度、尺寸超过允许负偏差;
  7. The temperature and size of ingot exceed the allowable negative deviation.
  8.铸锭过长,填充太快,铸锭温度不均,引起非鼓形填充,因而筒内排气不完全,或操作不当,未实行排气工序;
  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.模孔设计不合理,或切残料不当,分流孔和导流孔中的残料被部分带出,挤压时空隙中的气体进入表面。
  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、铝板挤压产生气泡、起皮的消除方法
  2. Elimination of Bubbles and Peeling in Aluminum Plate Extrusion
  1.合理设计挤压筒和挤压垫片的配合尺寸,经常检查工具尺寸,保证符合要求,挤压筒出现大肚要及时修理,挤压垫不能超差;
  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、铸锭表面保持清洁、光滑和干燥;
  2. Keep the surface of tools and ingots clean, smooth and dry.
  3.更换合金时,彻底清筒;
  3. When replacing the alloy, the cylinder should be cleaned thoroughly.
  4.经常检查设备和仪器,防止温度过高、速度过快;
  4. Check equipment and instruments frequently to prevent excessive temperature and speed.
  5.严格实行工艺规程和各项制度;
  5. Strict implementation of process regulations and systems;

                        铝板生产厂家
  6.合理设计、制造工模具,导流孔和分流孔设计成1°-3°内斜度;
  6. Reasonable design and manufacture of tools and dies, diversion holes and diversion holes are designed into 1-3 degrees of inclination;
  严格操作,正确剪切残料和完全排气。
  Strict operation, correct cutting of residue and complete exhaust.
  通过专家的答疑解惑,相信大家对铝板挤压产生气泡、起皮的原因及消除方法都有了深刻的了解,在日常生产中避免这些问题,就能减少损耗,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.

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