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济南铝板发脆是什么原因?

文章出处:www.jngdly.com 责任编辑:admin 发表时间:2015-2-3 16:29:15

1、济南铝板http://www.jngdly.com/对于因分流筋汇合不良造成的性能下降应适当增加筋与外表面、筋与筋汇流处的长度,或者增大压缩比来解决,模头压力的改变可以通过改变模头平直段长度来调整流料阻力;在模具设计阶段可选择不同的压缩比来改变挤出压力,但必须注意机头压缩比要与挤出机螺杆的压缩比相适应;还可以通过改变配方,调整挤出工艺参数,增加多孔板来改变熔体压力的大小。
Jinan aluminum bars for convergence due to diversion caused by poor performance degradation should be appropriate to increase the length of the outer surface of tendons, muscle and tendon at the confluence of, or increase the compression ratio to solve, die pressure change can be achieved by changing the length of the straight sections of the die to adjust the flow resistance of the material; choose different compression ratio to change in the mold design stage extrusion pressure, but must pay attention to the nose and the compression ratio of the compression ratio of the extruder screw fit; can also change the recipe, adjust the extrusion process parameters, to change the size of the perforated plate increases the melt pressure.
  
2、济南铝板口模出料不均匀,造成型材壁厚薄不一致,或者密实度不一致。这也就造成了型材两个面之间的力学性能上的差别,至于壁薄等非标型材这里就不再多说。
Jinan aluminum die discharge uneven, resulting in thin wall sections are inconsistent or inconsistent with the density. This also resulted in the difference between the mechanical properties of profiles on the two faces, as thin wall sections and other non-standard here is not to say any more.
  
3、济南铝板口模截面设计不合理,尤其是内筋的分布和交界面角度的处理,冷却水温往往没有引起足够的重视,冷却水的作用是将型材拉伸的大分子链及时冷却定型,达到使用目的。
Jinan aluminum die-sectional design is unreasonable, especially within the tendons of the distribution and processing interface point of view, the cooling water temperature is often not taken seriously enough, cooling water is the role of macromolecular chains stretch profiles timely cooling stereotypes, to use the purpose.
  
4、、济南铝板http://www.jngdly.com/模头压力不足。模头处压力大小是直接受模具的压缩比,特别是模具平直段的长度来决定的,模头的压缩比太小或平直段太短都会造成制品不致密,影响物理性能。
Jinan aluminum die pressure is insufficient. Pressure at the die size is directly affected by the compression ratio of the mold, particularly the length of the straight section of the mold to the decision, the compression ratio is too small or the die is too short straight sections are not dense products, affecting the physical properties caused.

此文关键字:济南铝板