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1、 Ultramid? HFX 的耐化学性能 UL 1450 Testing of Ultram id? HFX33 and Com petitor A Elongation Properties after Sovlent Exposure (70 hours at 23oC 1 20% Percentage of Tensile Elongation Retained 1 00% 60 % Pass 80% 60% 40% 20% 0% Initial HFX 33 Compet it or A After Acetone After Ethanlol After Toulene After
2、 Naptha Green area in Chart above represents pass for UL1450 Testing for paint/solvent applications 45 Ultramid? HFX 典型挤出加工工艺参数 典型挤出加工温度 oF (oC Melt 440 - 500 (227-260 Die 440 - 500 (227-260 Head 440 - 500 (227-260 Flange 440 - 500 (227-260 Front Zone 460 - 500 (238-260 Center Zone 460 - 500 (238-26
3、0 Rear Zone 470 - 500 (243-260 Screw Design: Due to a wide processing window Ultramid? can typically be processed using general purpose screw designs. Specific Ultramid? HFX guidelines are as follows Compression Ratio 3.5:1 to 4.0:1 L/D Ratio 20:1 to 24:1 Metering Section 40% of screw Transition Sec
4、tion 6 to 7 flight Feed Section Balance of screw length 46 Another downhole pipe, but a convoluted structure that is a monolayer of HFX 35 This pipe is a velocity string used to extract oil from downhole wells. The multilayer structures consists of a PPS inner layer, a tie layer (Ultramid XA-3234 and an outer layer of HFX 35. HFX 38 convoluted tubing Multi-layer Construction Paint Sprayer Tubes Inner tube is HFX 33 Fiber reinforcement between
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