Diamond Grinding Wheel Selection And FAQ

Ⅰ metal alloy sintered diamond wheel commonly known as diamond wheel: diamond wheel diamond part is called the working layer, the working layer is the shape of the ring, so it is also called the working ring, the height of the working ring is called the working height, the working width is called the ring width, the ring width in the outer part of the grinding wheel diameter is called the outer ring, the inner ring is called the inner ring; Diamond particle diameter is commonly known as particle size or mesh number. The round edge of the working ring can contact the glass twice. The first contact of the working ring is the front ring, and the later contact of the working ring is called the later ring. The width of the glass after grinding is known as the processing allowance.

 

Ⅱ grinding wheel selection skills and debugging

1. Replace the grinding wheel should choose the original specifications, such as 150 diameter can not be exchanged with 175 diameter grinding wheel.

2. Choose high performance grinding wheel, 1,2,3 performance should be the same, high and low grade collocation will have bottleneck effect.

3. The grain size of the grinding wheel is reasonably connected, and the overall efficiency should be guaranteed in principle. The second level should be able to correct the edge collapse and wear marks of the previous level, and keep approaching the light.

4 deployment can not only by ammeter swing or noise size experience debugging, should often back out of the glass to check wear marks. Allowance ratio of No. 1,2,3 should be close to 7.5:2:0. Grinding amount of No.52 should be controlled within 1mm.

5 grinding wheel should be as far as possible to use before and after the ring working mode (that is, the swing Angle of the grinding wheel), before and after the ring processing ratio close to 8:2, after the ring grinding amount should not be too large, should be just uniform and fine cover the front ring wear marks, the opposite direction of the ring before and after the grinding wheel consumption end face shape should be maintained factory shape and Angle.

Three, the grinding wheel in the use of common questions and answers

 

Problem 1: The glass is still broken edge, Angle off, grinding wheel impression and other undesirable phenomena after grinding by double-sided machine.

Answer: The grinding wheel size selection is inappropriate or poor performance, granularity should adapt to the thickness range of processing glass and processing speed requirements, such as 1,2 grinding wheel 80 mesh 140 mesh grinding wheel, grinding 8mm-25mm glass is very good, grinding 5-6mm glass may break the edge, generally should choose 100 mesh 140 mesh grinding wheel match to meet the requirements of 4-19mm glass. In addition, No. 1 grinding wheel distribution too much will cause small edge collapse, No. 2 should be able to synchronously correct the edge collapse and completely cover No. 1 grinding mark, No. 2 is often ignored, the selection of poor performance, although the appearance is No. 1 problem, in fact, it should be replaced by high performance No. 2 wheel and re-debugging reasonable distribution of processing allowance.

 

Problem 2: The working end Angle of the grinding wheel is more outward than the factory Angle, obviously low outside and high inside inclination, and even appears inside and outside graded step shape.

Answer: The Angle of the front and rear rings is not appropriate or the motor is loose, the outside of the front ring is too much work, the back ring is not working, the Angle of the motor needs to be adjusted in time and fixed.

 

Problem 3: The working end face of the grinding wheel is close to the level, or even high on the outside and low on the inside. Finally, the remaining 1/3 of the grinding wheel cannot be used.

A: The Angle of the front and rear rings is not appropriate or the motor is loose, the outside of the front end is not working, the inside of the back ring is a large workload, the Angle of the motor should be adjusted in time and fixed, and the processing allowance of the front and rear rings should be reasonably distributed.

 

Problem 4: There are impact marks on the outside of the grinding wheel, or the end face of the ring sag, alloy shining and other phenomena, can not continue to use.

A: This phenomenon mostly occurs in chamfered wheel or No. 2 and 3 grinding wheel with fine diamond. The reason is that when replacing the new grinding wheel or processing the thick and thin glass with a large span, the advance and fall position of the grinding wheel is not adjusted in time, resulting in the direct impact of the glass on the outside of the grinding wheel, or the assigned processing amount is greatly beyond the bearing range of the grinding wheel.

 

Problem 5: The teeth of the whole gear with a depth of 2mm or so will collapse, commonly known as grinding can not be used.

A: The depth of the water groove of the whole gear is equal to the working layer height of 1.5mm inside the working ring of the grinding wheel. The remaining 1.5mm of the water mouth indicates that the working layer has been consumed. In order to prevent the remaining 1/3 of the grinding wheel from being consumed, the glass will impact the matrix outside the grinding wheel due to the large processing allowance or grinding thick glass. The actual working layer is completely consumed.