给水管材焊制工艺.doc

燃气用埋地聚乙烯(PE)管材热熔对接参数表 (SDR11系列) 无锡“八达”机具PE管材升压加热低压吸热切换升压对接管径dn壁厚en截面积S加热压力P1融环宽度h吸热压力P2吸热时间t1最大切换时间t2对接压力P3对接冷却时间t3最少最多mmmmmm2MPammMPasecsecsecMPamin756.8150.15+P01.50P20.01+P010212280.15+P09908.2210.21+P01.60P20.02+P012314880.21+P01011010.0310.31+P01.70P20.03+P015018080.31+P01312511.4410.41+P01.80P20.04+P017120580.41+P01414012.7510.51+P01.90P20.05+P019122980.51+P01616014.6670.67+P02.00P20.07+P0219263100.67+P01818016.4840.84+P02.10P20.08+P0246295100.84+P02120018.21041.04+P02.20P20.10+P0273328101.04+P02322520.51321.32+P02.40P20.13+P0308369101.32+P02625022.71621.62+P02.50P20.16+P0341409101.62+P02828025.42032.03+P02.70P20.20+P0381457102.03+P03231528.62572.57+P02.80P20.26+P0429515102.57+P03635532.33263.27+P03.00P20.33+P0485581123.27+P04040036.44154.16+P03.20P20.42+P0546655124.16+P04645040.95255.25+P03.50P20.53+P0614736125.25+P05150045.46486.48+P00P20.65+P056050.88128.12+P00P20.81+P063057.2102910.29+P00P21.03+P0注：1、P0起始拖拉力：油缸移动夹具克服的摩擦阻力，P0大小与机具、施工现场及管材自重等因素有关。2、P2吸热压力：其作用主要是防止管材回弹，使管材紧贴在加热板上，提高加热效果，减少加热时间。实际操作过程中，取适量大小即可。 燃气用埋地聚乙烯(PE)管材热熔对接参数表 (SDR17.6系列) 无锡“八达”机具PE管材升压加热低压吸热切换升压对接管径dn壁厚en截面积S加热压力P1融环宽度h吸热压力P2吸热时间t1最大切换时间t2对接压力P3对接冷却时间t3最少最多mmmmcm2MPammMPasecsecsecMPamin754.5100.10+P01.40P20.010+P0657780.10+P05905.4140.14+P01.40P20.014+P0789480.14+P071106.6210.21+P01.50P20.021+P09511380.21+P081257.4270.27+P01.60P20.027+P010712880.26+P091408.3340.34+P01.70P20.034+P012014480.33+P0101609.5450.45+P01.80P20.045+P0137164100.43+P01118010.7570.57+P01.90P20.057+P0155185100.55+P01320011.9700.7+P02.00P20.070+P0171205100.68+P01422513.4890.89+P02.10P20.089+P0192230100.85+P01625014.81091.09+P02.20P20.109+P0213256101.05+P01828016.61371.37+P02.40P20.137+P0239286101.32+P02031518.71741.74+P02.50P20.174+P0269322101.67+P02235521.12212.21+P02.70P20.221+P0303364122.12+P02540023.72802.80+P02.80P20.280+P0342410122.70+P02945026.43513.51+P03.00P20.341+P0384461123.41+P03250029.74394.39+P00P20.439+P056033.25495.49+P00P20.549+P063037.46966.96+P00P20.696+P0备注：1、P0起始拖