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耐熱輸送帶外觀缺陷及形成原因!

來源:http://www.bevness.com 時間:2020-04-10 11:42:35 瀏覽次數:
  耐熱輸送帶外觀缺陷及形成原因,表麵覆蓋有微凹的膠痕,疤痕是耐熱輸送帶更常見的外觀缺陷,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:
  橡膠可塑性過小,流動性差,如果3-20包膠配合不合理,特別是小橡膠柔軟劑使用不當,可塑性差,流動性差,容易造成疤痕,解決方法:柔軟劑和增塑劑用量的合理使用,混合的可塑性和嚴格控製混合的均勻度,然後使橡膠符合需求的過程,折疊後平板硫化機、橡膠硫化速度太快橡膠是否仍沒有完全走,橡膠硫化已經沒有了地方明亮的疤痕,解決方案:適當控製橡膠硫化率為3,其耐熱膠粘劑固化速度是非常緩慢的,和氯丁橡膠的交聯劑是氧化鋅和氧化鎂,如果組變質鎂氧化物吸收水分,活動不防焦性能差,經常出現硫速度太快,所以氧化鎂的質量的控製是解決這個問題的關鍵。塑料材料太大或太粘,由氣體引起硫化。
  If the rubber plasticity is too small and the fluidity is poor, if the 3-20 rubber wrapping is not reasonable, especially the small rubber softener is not used properly, the plasticity is poor and the fluidity is poor, it is easy to cause scars. The solution: the reasonable use of softener and plasticizer, the plasticity of the mixture and the strict control of the uniformity of the mixture, and then make the rubber meet the needs of the 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.
大傾角輸送帶
  如果粘接劑材料粘度過大,當印版硫化機塗膜時,不容易擠出空氣,往往會造成氣痕。所以覆膜塑料的可塑性不能太大,一般大於0.4的手術是不理想的,尤其是氯丁橡膠,由於3-20和丁基苯的粘結性差,如果覆膜塑料的可塑性較大,很少出現亮疤。對產品的要求越來越高,對質量的要求也越來越高,不僅產品的性能、耐久性和外觀都很美觀。傳送帶的外觀質量沒有明確國家明確規定,但參考GB / t7894 - 2001的規定共同的傳送帶,HC的耐熱輸送帶,2297 - 92年化工行業標準,外觀質量執行GB - 526織物芯輸送帶外觀質量標準,耐熱輸送帶的外觀質量是一個重要指標,外觀質量不僅是外觀問題,對產品的研究也是很講究的。
  If the viscosity of the adhesive material is too large, when the plate vulcanizer film 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 neoprene. Due to the poor adhesion of 3-20 and butylbenzene, 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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