Resin grinding wheel for cutting and disassembling reinforced concrete as well as preparation method and application of resin grinding wheel

[0038] Example 1 Pretreatment of abrasives

[0039] Fully mix 100 parts of white corundum abrasive with 1.0-1.5 parts of sodium silicate aqueous solution (concentration is 50-51°Bé Baume degree), add 0.8-1.2 parts of zirconia powder to fully mix, bake at 900-950 ℃ temperature Bake for 30 minutes.

[0040] The present invention finds that the pretreatment effect is not only related to the proportion of the formula material, but also the baking temperature and time are particularly important for the hardening of the sodium silicate aqueous solution, which can improve the surface strength of white corundum and enhance the abrasive toughness.

[0041] Example 2 Preparation of resin grinding wheel of the present invention

[0042] Resin grinding wheel of the present invention is made of the following raw materials by weight:

[0043] 60 parts of white corundum abrasive, 30 parts of silicon carbide abrasive, 15 parts of phenolic resin, 5 parts of potassium hexafluoroaluminate, 2 parts of calcium sulfate whisker, 0.4 part of KH550 silane coupling agent, wherein the resin solution and the resin The weight ratio of the powder is 1:1, wherein the phenolic resin powder is composed of thermosetting phenolic resin powder and thermoplastic phenolic resin powder, and the weight ratio of thermosetting phenolic resin powder to thermoplastic phenolic resin powder is 7:3.

[0044] The preparation method of the grinding wheel of the present invention is:

[0045] (1) Mixing:

[0046] (1-1) Quantitatively put the required abrasives into the mixer and mix them evenly.

[0047] (1-2) Add KH550 silane coupling agent to wet and wrap the

[0067] Example 3 Preparation of resin grinding wheel of the present invention

[0068] Resin grinding wheel of the present invention is made of the following raw materials by weight:

[0069] 70 parts of white corundum abrasive, 40 parts of silicon carbide abrasive, 20 parts of phenolic resin, 15 parts of potassium hexafluoroaluminate, 5 parts of calcium sulfate whisker, 0.6 part of KH550 silane coupling agent, wherein, the resin solution and the resin The weight ratio of the powder is 1:3, wherein the phenolic resin powder is composed of thermosetting phenolic resin powder and thermoplastic phenolic resin powder, and the weight ratio of thermosetting phenolic resin powder to thermoplastic phenolic resin powder is 7:3.