New-prene_7175N_道达尔 New-prene_7175N_道达尔 New-prene_7175N_道达尔 New-prene_7175N_道达尔 New-prene_7175N_道达尔 New-prene_7175N_道达尔
优点: 高韧性耐候性弹性好耐压缩抗老化耐低温低粘度抗变形耐环境耐老化耐油性耐溶剂
耐高温高流动低收缩耐热性可焊接环保无毒高回弹性抗张强度好电绝缘性好
New-prene_7175N_道达尔
介绍:
TPV的注塑加工:TPV的熔体粘度比许多种普通热塑性材料更大,在加工时,需应用较大的注料嘴、注料口、流道和浇口,还需要采用高的注射压力和较快的注射速率,以提高充模速度和减少飞边,此后在较高的压力下有一个短的保持时间,使之足以将浇料口冻结。 注射螺杆的速度应当是100至200转/分,背压力在不需要混合时应当尽可能低。
TPV的挤塑加工:不需要真空定径。建议采用长径比为28比1或更大比例的挤塑机。通常单段螺杆比为3比1左右,如果需要用筛网组合,可用20至60网目的筛网。将熔体温度保持在规定范围的下限,使挤塑产品的质量最优。
TPV的吹塑加工:TPV机械操作条件要求与注塑和挤塑所规定的相同。模具设计、型坯尺寸、加工周期时间、以及壁厚均匀等吹塑加工因素都与制件的几何形状有很大的关系。熔体加热过度将使牵伸比下降,应当避免过热。
我司还供应以下产品:
供应 PP+EPDM New-prene 7175B 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 7175N 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 7185B 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 7185N 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8065B 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8065N 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8080B 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8080N 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8180B 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8180N 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8265N 生产商: Total Polymer Vision (Suzhou) Co., LTD |
供应 PP+EPDM New-prene 8280B 生产商: Total Polymer Vision (Suzhou) Co., LTD |
It was a delicious feast; the hall echoed with talk, laughter, and the clatter of knives and forks. Harry, Ron, and Hermione, however, were eager for it to finish so that they could talk to Hagrid. They knew how much being made a teacher would mean to him. Hagrid wasn't a fully qualified wizard; he had been expelled from Hogwarts in his third year for a crime he had not committed. It had been Harry, Ron, and Hermione who had cleared Hagrid's name last year.