Welding wire for surfacing of composite carbide reinforced scraper and preparation method of welding wire

[0042] The invention also provides a preparation method of a composite carbide reinforced scraper surfacing welding wire, and the specific steps are as follows:

[0043] Step 1: Weigh the following powders by mass percentage: 1~2% of graphene, 0.5~0.7% of Si powder, 1~3% of Mn powder, 60~65% of Cr powder, 2~3% of V powder, 2% of B powder ~3%, Ti powder 2~3%, CeO 2 The powder is 1-2%, the rest is Fe powder, and the sum of the mass percentages of the above components is 100%.

[0044] Step 2: The medicinal powder weighed in step 1 is placed in a vacuum heating furnace for heating, the heating temperature is 180-200 ° C, the holding time is 1-3 h, and the crystal water in the medicinal powder is removed; the dried medicinal powder is placed in the mixed powder. Fully mixed in the machine, the mixing time is 1 ~ 3h;

[0045] Step 3: Use the low carbon steel strip as the welding skin, use alcohol to remove the grease on the surface of the low carbon steel strip, wrap the powder prep

[0056] Step 1: Weigh the powders by mass percentage: graphene 1%, Si powder 0.5%, Mn powder 1%, Cr powder 60%, V powder 2%, B powder 2%, Ti powder 2%, CeO 2 1% powder, and the rest are Fe powder, and the sum of the mass percentages of the above components is 100%.

[0057] Among them, the particle size of Si powder, Mn powder, Cr powder and B powder are all 200 mesh, the particle size of the graphene is 10 μm, the CeO 2 It is nano-sized, the particle size is 100nm, and the purity of the powder is ≥99.90%;

[0058] Step 2: Place the medicine powder weighed in step 1 and heat it in a vacuum heating furnace, the heating temperature is 180 ° C, the holding time is 1h, and the crystal water in the medicine powder is removed; the dried medicine powder is placed in a powder mixer Carry out sufficient mixing, and the mixing time is 1h;

[0059] Step 3: Use the low carbon steel strip as the welding skin, use alcohol to remove the grease on the surface of the low carbon steel strip, wrap

[0073] Step 1: Weigh the powders by mass percentage: graphene 2%, Si powder 0.7%, Mn powder 3%, Cr powder 65%, V powder 3%, B powder 3%, Ti powder 3%, CeO 2 2% powder, the rest are Fe powder, and the sum of the above component mass percentages is 100%.

[0074] Among them, the particle size of Si powder, Mn powder, Cr powder and B powder are all 200 mesh, the particle size of the graphene is 10 μm, the CeO 2 It is nano-sized, the particle size is 100nm, and the purity of the powder is ≥99.90%;

[0075] Step 2: Place the medicine powder weighed in step 1 and heat it in a vacuum heating furnace, the heating temperature is 200 ° C, the holding time is 3h, and the crystal water in the medicine powder is removed; the dried medicine powder is placed in a powder mixer Carry out sufficient mixing, and the mixing time is 3h;

[0076] Step 3: Use the low carbon steel strip as the welding skin, use alcohol to remove the grease on the surface of the low carbon steel strip, wrap the powder