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耐热输送带外观缺陷及形成原因!

来源:ag国际亚游官网 时间:2020-04-24 10:41:56 浏览次数:
  耐热输送带外观缺陷及形成原因,表面覆盖有微凹的胶痕,疤痕是耐热输送带更常见的外观缺陷,主要原因有:
  The surface of heat-resistant conveyor belt is covered with micro concave rubber mark. Scar is the most common appearance defect of heat-resistant conveyor belt. The main reasons are as follows:
  橡胶可塑性过小,流动性差,如果3-20包胶配合不合理,特别是小橡胶柔软剂使用不正确,可塑性差,流动性差,容易造成疤痕,解决方法:柔软剂和增塑剂用量的合理使用,混合的可塑性和严格控制混合的均匀度,然后使橡胶符合需求的过程,折叠后平板硫化机、橡胶硫化速度太快橡胶是否仍没有完全走,橡胶硫化已经没有了地方明亮的疤痕,解决方案:适当控制橡胶硫化率为3,其耐热胶粘剂固化速度是非常缓慢的,和氯丁橡胶的交联剂是氧化锌和氧化镁,如果组变质镁氧化物吸收水分,活动不防焦性能差,经常出现硫速度太快,所以氧化镁的质量的控制是解决这个问题的关键。塑料材料太大或太粘,由气体引起硫化。
  The plasticity of rubber is too small and the fluidity is poor. If the 3-20 compound is not reasonable, especially the use of small rubber softener is not correct, the plasticity is poor and the fluidity is poor, it is easy to cause scars. Solutions: the reasonable use of softener and plasticizer, the plasticity of mixing and strict control of the uniformity of mixing, and then make the rubber meet the demand process, After folding, if the vulcanization speed of flat vulcanizer and rubber is too fast, whether the rubber is still not completely gone, and there is no bright scar in rubber vulcanization. Solution: properly control the vulcanization rate of rubber to 3, and the curing speed of heat-resistant adhesive is very slow, and the crosslinking agent of Chloroprene rubber is zinc oxide and magnesium oxide. If the modified magnesium oxide absorbs water, the activity is not coke proof, Sulfur is often too fast, so the quality control of magnesium oxide is the key to solve this problem. The plastic material is too big or too sticky, which is vulcanized by gas.
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  如果粘接剂材料粘度过大,当印版硫化机涂膜时,不容易挤出空气,往往会造成气痕。所以覆膜塑料的可塑性不能太大,一般大于0.4的手术是不理想的,尤其是氯丁橡胶,由于3-20和丁基苯的粘结性差,如果覆膜塑料的可塑性较大,很少出现亮疤。对产品的要求越来越高,对质量的要求也越来越高,不仅产品的性能、耐久性和外观都很美观。传送带的外观质量没有明确国家明确规定,但参考GB / t7894 - 2001的规定共同的传送带,HC的耐热输送带,2297 - 92年化工行业标准,外观质量执行GB - 526织物芯输送带外观质量标准,耐热输送带的外观质量是一个重要指标,外观质量不仅是外观问题,对产品的研究也是很讲究的。
  If the viscosity of the adhesive material is too large, when the plate vulcanizer is coated, it is not easy to extrude air, which often causes air marks. Therefore, the plasticity of the coated plastic can not be too large, and the operation larger than 0.4 is not ideal, especially the chloroprene rubber. Due to the poor adhesion of 3-20 and butyl benzene, if the plasticity of the coated plastic is large, there are few bright scars. The requirements for products are higher and higher, and the requirements for quality are higher and higher, not only the performance, durability and appearance of products are very beautiful. The appearance quality of conveyor belt is not clearly defined by the state, but refer to the provisions of GB / t7894-2001 common conveyor belt, HC heat-resistant conveyor belt, the chemical industry standard of 2297-92. The appearance quality is in accordance with the appearance quality standard of gb-526 fabric core conveyor belt. The appearance quality of heat-resistant conveyor belt is an important index. The appearance quality is not only the appearance problem, but also the product research.

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