High-speed train grinding wheel and preparation method thereof

[0033] Example 1

[0034] This embodiment provides a method for preparing a high-speed iron grinding wheel. Including the following process steps:

[0035] 1) Ingredients: Pre-mix the graded diamond particles and silicon carbide particles with the alloy powder brazing filler metal to form a molding material. The mixing material uses a three-dimensional mixer and the mixing time is 50 minutes. The composition of the alloy powder brazing filler metal is 31wt% Ni, 25wt% Mn, 1.8wt% Si, 0.80wt% B, 1.0wt% Fe, 2.5wt% Cr, the balance being Cu; added diamond particles The weight of is 3.2wt% of the weight of the alloy powder solder, and the weight of the added silicon carbide particles is 0.40wt% of the weight of the alloy powder solder.

[0036] 2) Cloth: Adjust the tooling and mold, place the machined 65Mn steel substrate (after cleaning the surface of the steel substrate, pre-coated with adhesive and flow blocking agent), then put the molding material, and assemble it into the molding fixtu

[0042] Example 2

[0043] This embodiment provides a method for preparing a high-speed iron grinding wheel. Including the following process steps:

[0044] 1) Ingredients: Pre-mix the graded diamond particles and silicon carbide particles with the alloy powder brazing filler metal to form a molding material. The mixing material uses a three-dimensional mixer and the mixing time is 50 minutes. The composition of the alloy powder brazing filler metal is 35wt% Ni, 23wt% Mn, 2.0wt% Si, 0.80wt% B, 1.2wt% Fe, 3.2wt% Cr, the balance being Cu; added diamond particles The weight of is 2.5wt% of the weight of the alloy powder solder, and the weight of the added silicon carbide particles is 0.5wt% of the weight of the alloy powder solder.

[0045] 2) Cloth: Adjust the tooling and mold, place the machined 65Mn steel substrate (after cleaning the surface of the steel substrate, pre-coated with adhesive and flow blocking agent), then put in the molding material and assemble it into the molding fixt

[0051] Example 3

[0052] This embodiment provides a method for preparing a high-speed iron grinding wheel. Including the following process steps:

[0053] 1) Ingredients: Pre-mix the graded diamond particles and silicon carbide particles with the alloy powder brazing filler metal to form a molding material. The mixing material uses a three-dimensional mixer and the mixing time is 50 minutes. The composition of alloy powder brazing filler metal is 35wt% Ni, 24wt% Mn, 1.25wt% Si, 1.0wt% B, 1.5wt% Fe, 1.2wt% Cr, the balance being Cu; added diamond particles The weight of is 3.0wt% of the weight of the alloy powder solder, and the weight of the added silicon carbide particles is 0.3wt% of the weight of the alloy powder solder.

[0054] 2) Cloth: Adjust the tooling and mold, place the machined 65Mn steel substrate (after cleaning the surface of the steel substrate, pre-coated with adhesive and flow blocking agent), then put in the molding material and assemble it into the molding fixture.