Film-based electrostatic sand-planting grinding belt and preparation method thereof

An electrostatic sand planting and grinding belt technology, which is applied in the direction of grinding/polishing equipment, abrasives, grinding devices, etc., can solve the problems of low cutting force, poor chip removal performance, and short life of the grinding belt, so as to achieve the goal of not easy to drop sand, Strong chip removal ability and long service life

Active Publication Date: 2015-01-07
BEIJING GRISH HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of grinding belt has low cutting force, poor chip removal performance, easy sand loss and short service life.

Method used

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  • Film-based electrostatic sand-planting grinding belt and preparation method thereof
  • Film-based electrostatic sand-planting grinding belt and preparation method thereof
  • Film-based electrostatic sand-planting grinding belt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] Step 1: Get 800g median particle diameter as calcium carbonate micropowder of 5 microns, 200g median particle diameter as calcium oxide micropowder of 10 microns, 3000g solid content of 30% polyester glue, 1500g solid content of 20% phenolic glue, 2400g ethyl acetate, 900g methyl ethyl ketone, 450g xylene, the above mixed solution is transferred to the dispersion tank of the ball mill, and it is fully dispersed for 48 hours by the ball mill, and then 5000g polyisocyanate curing agent (Shanghai Xinguang Chemical Factory) is added, stirred evenly to form a coating Cloth slurry. Use a roller coater to evenly coat the above-mentioned coating slurry on a film tape base with a thickness of 125 microns at a speed of 15m / min, and then adjust the amount of sand under the sand box to 150g / m 2 , The distance between the plates is 50 mm, the electrostatic field voltage is 60,000 volts, and the speed of the abrasive belt is set to 8 m / min. After the glue is applied, the base materia...

example 2

[0038] Step 1 gets 600g median particle diameter and is the calcium carbonate micropowder of 5 microns, 400g median particle diameter is the calcium oxide micropowder of 10 microns, 2000g solid content is 30% polyester glue, 2000g solid content is 20% phenolic glue, 2400g ethyl acetate, 900g methyl ethyl ketone, 450g xylene, the above mixed solution is transferred to the dispersion tank of the ball mill, and it is fully dispersed for 48 hours by the ball mill, and then 5000g polyisocyanate curing agent (Shanghai Xinguang Chemical Factory) is added, stirred evenly to form a coating Cloth slurry. Use a roll coater to evenly coat the above-mentioned coating slurry on a film tape base with a thickness of 125 microns at a speed of 15m / min, and then the base material passes through the sand planting machine after coating, and then the amount of sand under the sand box is adjusted. 120g / m 2 , The distance between the plates is 50mm, the voltage of the electrostatic field is 60,000 v...

example 3

[0042] Step 1 gets 1500g median particle diameter and is the calcium carbonate micropowder of 5 microns, 3000g solid content is the polyester glue of 30%, 1500g solid content is the phenolic glue of 20%, 2400g ethyl acetate, 900g methyl ethyl ketone, 450g xylene, The above mixed solution was transferred into the dispersion tank of the ball mill, fully dispersed by the ball mill for 48 hours, and then 5000g of polyisocyanate curing agent (Shanghai Xinguang Chemical Factory) was added, and stirred evenly to form a coating slurry. Use a roller coater to evenly coat the above-mentioned coating slurry on a film tape base with a thickness of 125 microns at a speed of 15m / min, and then adjust the amount of sand under the sand box to 100g / m 2 , The distance between the plates is 50mm, the voltage of the electrostatic field is 50,000 volts, and the speed of the abrasive belt is set to 8m / min. Alumina abrasives are planted on the adhesive layer of the base material, dried by hot air at ...

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Abstract

The invention provides a film-based electrostatic sand-planting grinding belt and a preparation method thereof. The film-based electrostatic sand-planting grinding belt has the advantages of good chip removal capability, high cutting force, low possibility of blockage and sand drop, long life and the like, thus more efficiently polishing metal sticks, crankshafts and the like to meet the requirement of surface roughness. The grinding belt is characterized in that the grinding belt comprises a film base material, coating layers coated on the surface of the film base material and micron-sized grinding materials embedded in the coating layers; the coating layers include a primer layer and a compound adhesive layer which are stacked in sequence; the primer layer comprises primer layer fillers and a solvent adhesive; the primer layer fillers are selected from one of or the mixture of more than one of the following substances: calcium oxide, calcium carbonate and talcum powder; the grain sizes of the fillers are 5-30mu m; the compound adhesive layer comprises compound adhesive layer fillers and a solvent adhesive; the compound adhesive layer fillers are selected from one of or the mixture of more than one of the following substances: calcium oxide, calcium carbonate and talcum powder; and the grain sizes of the fillers are 5-30mu m.

Description

technical field [0001] The invention relates to a grinding belt for precision polishing and grinding, in particular to a film-based electrostatic sand-planting grinding belt and a preparation method thereof. Background technique [0002] The crankshaft is the main rotating part of the engine. When the connecting rod is installed, the reciprocating motion can be changed into a rotary motion. crankshaft is launch machine An important part of the machine, its material is made of carbon structural steel or ductile iron. The main journal and connecting rod journal of the crankshaft are its two important parts. The main journal is installed on the cylinder block, the connecting rod neck is connected with the large end hole of the connecting rod, and the small end hole of the connecting rod is connected with the cylinder piston connection, is a typical crank slider mechanism. The lubrication of the crankshaft mainly refers to the lubrication of the bearing bush between the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D11/02B24D18/00
Inventor 刘旭升黄锐
Owner BEIJING GRISH HITECH
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