欢迎访问新葡萄京官网模具有限公司!

当前位置:首页-新闻中心-公司新闻-在注塑加工过程中如何控制产品的色差问题?

在注塑加工过程中如何控制产品的色差问题?

来源:/ 日期:2018-08-08

 
 
1、解决注塑机及模具要素的影响
  1. Solve the influence of injection molding machine and mold elements
  要选择与注塑加工容量相当的注塑机,如果注塑机有材料死角等问题,还是替换设备比较好。模具浇注系统、排气槽等色差的原因可以通过对应部分的模具的维护模具来解决。须先解决设备和模具的问题,才能组织生产,减低问题的复杂性。
  Choose an injection molding machine with the same processing capacity as the injection molding machine. If the injection molding machine has problems such as material dead corner, it is better to replace the equipment. The causes of color difference such as mold gating system and exhaust slot can be solved by maintaining the mold of the corresponding part. We must solve the problems of equipment and molds before we can organize production and reduce the complexity of the problem.
  2、解决原料树脂、色母的影响
  2. Solve the influence of raw resin and color masterbatch
  在生产浅色产品的情况下,不能忽视原料树脂的差异对产品色调变动的影响。
  In the case of producing light color products, the influence of the difference of raw resin on the color change of products cannot be ignored.
  3、解决混合不均的影响
  3. Address the impact of uneven mixing
  济南注塑加工
  注塑加工材料和色母的混合不好,产品的颜色就会变化无常。和色母机械均匀混合后,用下吸引材料送入料斗,在静电的作用下色母和料斗分离,容易吸附在料斗壁上,射出循环中的色母的量发生变化,产生色差。济南注塑加工
  If the injection molding materials and color masterbatch are not mixed well, the color of the product will be changeable. After evenly mixed with the color masterbatch machine, the lower suction material is sent to the hopper. Under the action of static electricity, the color masterbatch is separated from the hopper, which is easy to be adsorbed on the hopper wall, and the amount of color masterbatch in the injection cycle changes, resulting in color difference. Jinan injection molding
  4、减少汽缸温度对色差的影响
  4. Reduce the influence of cylinder temperature on color difference
  在生产中,由于某加热线圈的破损故障或加热控制部分的失控引起的汽缸温度的急剧变化,经常会产生色差。
  In production, the color difference often occurs due to the sharp change of cylinder temperature caused by the damage fault of a heating coil or the out of control of heating control part.
  这种原因引起的色差很容易判定,但一般加热线圈的破损故障在发生色差时会导致塑化不均匀现象,加热控制部分的失控经常会伴随产品的红斑、严重变色、锡化现象。因此,在生产中须经常检查加热部分,如果加热部分破损或失控,要及时替换修理,减少这种色差的发生概率。
  The color difference caused by this reason is easy to determine, but the damage fault of the general heating coil will lead to uneven plasticization in case of color difference. The out of control of the heating control part will often be accompanied by product erythema, serious discoloration and tinning. Therefore, the heating part shall be checked frequently in production. If the heating part is damaged or out of control, it shall be replaced and repaired in time to reduce the occurrence probability of this color difference.
  5、减少注塑过程调整时的影响
  5. Reduce the influence of adjustment in injection molding process
  如果因为色差以外的原因需要调整注塑加工工艺参数,如果尽可能不改变注塑温度、背压、注塑周期和色母的添加量,还须观察工艺参数的变化对色差的影响。
  If the injection molding process parameters need to be adjusted for reasons other than color difference, if the injection temperature, back pressure, injection cycle and the addition amount of color masterbatch are not changed as much as possible, the influence of the change of process parameters on color difference must also be observed.
  尽量免除高注塑速度、高背压等引起强剪切作用的注塑过程,以免因局部过热和贪婪等因素引起的色差。严格控制汽缸各加热部的温度,尤是喷嘴和靠近喷嘴的加热部。
  Try to avoid the injection process with strong shear caused by high injection speed and high back pressure, so as to avoid the color difference caused by local overheating and greed. Strictly control the temperature of each heating part of the cylinder, especially the nozzle and the heating part close to the nozzle.
  6、掌握汽缸温度、色母量的影响
  6. Master the influence of cylinder temperature and color masterbatch quantity
  在进行色差调整之前,有需要知道产品的颜色根据温度、色母量而变化的倾向。不同颜色的母亲根据生产的温度和颜色的母亲的量,其注塑加工的产品颜色变化规律不同。可以通过尝试颜色来决定变化规律。
  Before adjusting the color difference, it is necessary to know that the color of the product changes according to the temperature and the amount of color masterbatch. According to the production temperature and the amount of color mother, the color change law of injection molding products is different. You can determine the change law by trying color.

相关产品 / Related products

新葡萄京官网模具有限公司

鲁ICP备15002024号-2

网站地图    TXT    XML
Baidu
sogou