タイトルまたは説明

LJ-SJ**1 Standard: GB F4A*-H*8MnA F5A*-H*0Mn2 Equivalents: AWS F7A*-EH*4 F7A*-EA*-A2 DIN BFB **5AC*2MHP5 Description: LJ-SJ**1 is defined as a fluorine-alkali type of special agglomerated fluxes. It’s alkali degree is 1.8. They are gray ball grains the size of which are from 2.**0.*8mm (****0 meshes). It adopts AC/DC. The wire is connect to the positive rod when DC. The Si and Mn will not be increased. It has nice welding technical performance property with steady electric arc, and the features of good slag detachability, spotless, non-viscidity and nice welding line configuration. The welding line metal has relatively high impact tenacity. Applications: matching with proper fluxes (such as H*8MnA&#****9;H*0Mn2&#****9;H*8MnMoA&#****9;H*8Mn2MoA), it can be used to weld some important products as body of ships, boilers, and pressure vessels pipes of low alloy steel structures. It can be applied to multiple-layer welding, double-face single way welding, multi-wire welding and SAW in a narrow clearance. Compositions of the fluxes (%) SiO2+TiO2 CaO+MgO Al2O3+MnO CaF2 S P ****5 ****5 ****0 ****5 &#***4;0.*6 &#***4;0.*6 The fusing metal dynamic performance: Filler-wire matched ó s Mpa ó b Mpa &#**8; 5 % AKV(J) 0&#***1; **0&#***1; **0&#***1; LJ-H*8MnA &#***5;**0 ******0 &#***5;*2 &#***5;**0 &#***5;*0 &#***5;*7 LJ-H*0Mn2 &#***5;**0 ******0 &#***5;*2 &#***5;**0 &#***5;*0 &#***5;*7 Remarks: 1.Before welding, fluxes need to be baked for two hours at ******0&#***1;. 2.Removal of rust, oil, dirt, water, impurities etc in welding-areas.