I now want to surface hardening of the roll, ready to use J506 welding rod continuous welding roll surface, how much surface hardness can be achieved?
Hardness must be no good, J506 surfacing is no hardness.Now is the use of roller surfacing, preheating, submerged arc welding, after welding heat treatment, machining, welding process to repair. Specific to the surface hardness, different conditions, hardness is also different, but, J506 welding hardness is not achieved.
You should use surfacing electrode, I think D047 welding rod should be more suitable, for reference only.D047 roller Hardfacing Electrode: roller Hardfacing Electrode, using direct reverse, welding process, good cracking resistance, cold cracking, has good anti extrusion capacity and anti abrasion resistance. Application: it is used for the welding machine of roller press and roll, without disassembly and repair. It can also be used in other extrusion and wear machine parts. The chemical composition of deposited metal / C = 1.7 Cr 4-7 Mo 1.5-3 Si is less than or equal to 3 other than 10 HRC surfacing hardness: 55
1, J506 can not guarantee that there is no hardness after surfacing. It is recommended to use D047 welding rod.2, J506 is a low hydrogen potassium electrode, it is a kind of basic electrode, can be welded structural steel and typical Q235 steel, the tensile strength of E4315 is much larger relative to the common electrode, so the general welding force or by welding steel structure of dynamic load.3 roll is an important part of a rolling mill on a steel mill. It uses a pair or a set of rolls to roll and crush the steel. It is mainly affected by static and dynamic loads, wear and temperature changes during rolling.
