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Grinding wheel, preparation method and application thereof

A grinding wheel and abrasive technology, applied in the field of grinding wheel and preparation, can solve the problems of service life, processing efficiency and poor yield of electroplated grinding wheels, and achieve the effects of low cost, improved service life and good holding force

Inactive Publication Date: 2020-04-28
江苏华昌工具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The CNC grinding machine for processing Borg plates originally used electroplated grinding wheels, but the service life, processing efficiency and yield of electroplated grinding wheels are poor

Method used

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  • Grinding wheel, preparation method and application thereof
  • Grinding wheel, preparation method and application thereof
  • Grinding wheel, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of this embodiment includes the following process steps:

[0031] 1) Ingredients: pre-mixed graded diamond particles and alloy powder brazing filler metal to form molding materials, using 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 is Cu; added diamond particles The weight is 3.0wt% of the alloy powder solder weight.

[0032] 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 fixture. The steel substrate is 65Mn material.

[0033] 3) Brazing and vacuum sintering: Assemble the fabricated grinding wheel blanks in the mold frame, and heat and sinter in a vacuum heating furnace. The vacuum sintering temperature is...

Embodiment 2

[0038] The preparation method of this embodiment includes the following process steps:

[0039] 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 is 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 0.50wt% of the weight of the alloy powder solder.

[0040] 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 fixture. The steel substrate is 65Mn material.

[0041] 3) Brazi...

Embodiment 3

[0046] The preparation method of this embodiment includes the following process steps:

[0047] 1) Ingredients: Premix the graded diamond particles and corundum particles with the alloy powder brazing filler metal to form a molding material. The mixing material adopts a three-dimensional mixer, and the mixing time is 50 minutes. The composition of the alloy powder brazing filler metal is 33wt% 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 2.5wt% of the weight of the alloy powder solder, and the weight of the corundum particles added is 0.5wt% of the weight of the alloy powder solder.

[0048] 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 fixture. The steel substrate is 65Mn material.

[0049] 3) Brazing and vacu...

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Abstract

The invention relates to a grinding wheel, a preparation method and application thereof, and belongs to the technical field of abrasive grinding tool manufacturing. The preparation method comprises the steps of burdening, material distribution, brazing sintering, reaming, paint spraying, edging and the like. The adopted alloy powder brazing filler metal is composed of 31wt%-35wt% of Ni, 23wt%-25wt% of Mn, 1.25wt%-2.5wt% of Si, 0.30wt%-1.0wt% of B, 1.0wt%-1.5wt% of Fe, 1.0wt%-5.0wt% of Cr and the balance Cu. The invention further relates to a grinding wheel obtained according to the preparationmethod and a preparation method of the grinding wheel. The alloy powder brazing filler metal adopted by the grinding wheel does not contain rare metal W, Co and precious metal components, the cost islow, the brazing sintering temperature is low, heat damage to diamond particles is small, the wettability is good, good holding force can be formed for abrasive materials, the grinding effect of theabrasive materials can be brought into full play, and the service life is remarkably prolonged.

Description

Technical field [0001] The present invention relates to the technical field of manufacturing abrasives, more specifically, the present invention relates to grinding wheels, preparation methods and applications thereof. Background technique [0002] The traditional general-speed and high-speed railway track consists of two parallel steel rails. The steel rails are fixed on the sleepers, and underneath is a road ballast paved with small gravel, which is called a ballasted track system. In a ballasted track system, the road ballast and sleepers can increase the bearing surface, disperse the pressure of the train, and help the rail to bear the weight, preventing the rail from sinking into the soil due to excessive pressure. The sleepers of the ballastless track are made of concrete, and the roadbed does not need gravel. The steel rails and sleepers are directly laid on the concrete road. Compared with the ballasted track system, the ballastless track system can reduce maintenance, r...

Claims

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Application Information

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IPC IPC(8): B24D18/00
CPCB24D18/0009
Inventor 蒋武峰徐国栋
Owner 江苏华昌工具制造有限公司
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