1、预预热热温温度度Preheating temperaturePreheating temperature calculated in accordance with EN 1011-2.1. CET=C+(Mn+Mo)/10 + (Cr+Cu)/20 +Ni/40 CEV=C+Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15MaterialStandardCMnSiMoCrCuNiVNbTiQ235BGB 700-20060.21.40.3500.30.30.3000Q345BGBT1591-20080.21.70.50.10.30.30.50.150.070.2QStE420T
2、MQ/BQB 310-20090.121.50.500000.20.090.15QStE500TMQ/BQB 310-20090.121.70.500000.20.090.15G3Si1ISO 143410.141.610.150.150.350.150.0300Tpcet=750CET-150 ()MaterialStandardTpcetQ235BGB 700-2006135()Q345BGBT1591-1994165()QStE420TMQ/BQB 310-200952.5()QStE500TMQ/BQB 310-200967.5()2. Thicknesst in mmTpdt in
3、mmTpd 1-105()23-18()2-101()24-15()3-96()25-12()4-92()26-9()5-87()27-6()6-83()28-4()7-78()29-1()8-74()301()9-70()3512()10-65()4020()11-61()4527()12-57()5033()13-53()5537()14-49()6040()15-45()6542()16-42()7044()17-38()7546()18-34()8047()19-31()8548()20-27()9048()21-24()9549()22-21()10049()3. Hydrogen
4、percentISO 14341-A -G 42 G3Si1HD=5TpHD=621.756465005-100=94. Heat inputTpQ=(53CET-32)Q-53 CET+32 ()MaterialCETTpQ(0.5kj/mm) TpQ(1kj/mm)TpQ(1.5kj/mm) TpQ(2kj/mm)Q235B0.3860-6-13Q345B0.4250-5-10QStE420TM0.2790-9-18QStE500TM0.2980-8-17Calculation preheating TpTp=TpCET+Tpd+TpHD+TpQ heat input 0.5kj/mmhe
5、at input 1kj/mmMaterial5102030Q235B345687115Q345B4871103131QStE420TMQStE500TMCETCEV0.380.580.420.650.270.410.290.440.340.48预预热热温温度度Preheating temperaturePreheating temperature calculated in accordance with EN 1011-2.1. CET=C+(Mn+Mo)/10 + (Cr+Cu)/20 +Ni/40 CEV=C+Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15Tpcet=750CET-150 ()2. Thickness