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

A reinforced concrete and resin grinding wheel technology, applied in the field of mold processing, can solve problems such as dangerous accidents, saw blade deformation, tooth loss, etc., and achieve the effect of increasing cutting speed and avoiding temperature rise

Pending Publication Date: 2022-02-25
LANGFANG SHENGSEN ABRASIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The cutting test of reinforced concrete found that diamond saw blades or alloy toothless saw blades can cut cement stones faster when cutting reinforced concrete, but when cutting steel bars inside concrete, the speed is slower and the frictional heat is large. Accumulation and temperature rise will cause the saw blade to deform or lose teeth, causing dangerous accidents, and it is not conducive to emergency work such as dismantling and rescue.
Ordinary grinding wheels cut steel bars more quickly, but they cannot take into account the cutting of concrete

Method used

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

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The pretreatment of embodiment 1 abrasive

[0039] Fully mix 100 parts of white corundum abrasive with 1.0-1.5 parts of sodium silicate aqueous solution (concentration: 50-51°Bé Baumé), add 0.8-1.2 parts of zirconia powder for thorough mixing, and bake at 900-950°C Bake for 30 minutes.

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

Embodiment 2

[0041] Embodiment 2 prepares the resin emery wheel of the present invention

[0042] Resin grinding wheel of the present invention is made of following raw materials in parts 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 liquid 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 emery wheel of the present invention is:

[0045] (1) Mixture:

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

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

Embodiment 3

[0067] Embodiment 3 prepares the resin grinding wheel of the present invention

[0068] Resin grinding wheel of the present invention is made of following raw materials in parts 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 whiskers, 0.6 part of KH550 silane coupling agent, wherein, the resin liquid 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.

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Abstract

The invention belongs to the technical field of mold processing, and particularly relates to a resin grinding wheel for cutting and disassembling reinforced concrete as well as a preparation method and application of the resin grinding wheel. The resin grinding wheel for cutting and disassembling the reinforced concrete is prepared from the following raw materials in parts by weight: 60-70 parts of a white corundum grinding material, 30-40 parts of a silicon carbide grinding material, 15-20 parts of phenolic resin, 5-15 parts of potassium aluminate, 2-5 parts of calcium sulfate whiskers and 0.4-0.6 part of a coupling agent.

Description

technical field [0001] The invention belongs to the technical field of mold processing, and in particular relates to a resin grinding wheel for cutting and dismantling reinforced concrete, a preparation method and application thereof. Background technique [0002] Grinding wheel, also known as bonded abrasive, is a bonded abrasive with a certain strength that consolidates ordinary abrasives into a certain shape (mostly circular with a through hole in the center) by a binder. It is generally composed of abrasives, binders and pores. These three parts are often called the three elements of bonded abrasives. According to different classifications of bonds, the common ones are ceramic (bond) grinding wheels, resin (bond) grinding wheels, and rubber (bond) grinding wheels. Grinding wheel is the most widely used type of grinding tool. It rotates at high speed when used, and can be used for rough grinding, semi-finishing and Fine grinding as well as grooving and parting off etc. ...

Claims

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Application Information

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IPC IPC(8): B24D3/28B24D3/34B24D18/00B24D5/04B24D5/12
CPCB24D3/285B24D3/344B24D18/0009B24D5/12B24D5/04
Inventor 许胜英许亚宁许静贤
Owner LANGFANG SHENGSEN ABRASIVES CO LTD
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