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الصفحة الرئيسية> مدونة> How to selecte Diamond Grinding Cup Wheel

How to selecte Diamond Grinding Cup Wheel

August 28, 2018


First, the metal alloy sintered diamond grinding wheel is commonly known as the diamond wheel: the diamond-containing part of the diamond wheel is called the working layer, the working layer is mostly the ring shape, so it is also called the working ring, the working ring height is called the work height, and the working width is changed. Known as the ring width, the outer portion of the ring width at the diameter of the grinding wheel is called the outer ring, and the inner side is called the inner ring; the diameter of the diamond particles is commonly known as the particle size or mesh number. The rounded edge of the working ring can contact the glass twice, the working ring that contacts first is the front ring, and the part of the working ring that is contacted later is called the rear ring. The width of the grinding after the glass cutting is commonly referred to as the machining allowance.

Second, the grinding wheel selection skills and debugging

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

2. Select the high-performance grinding wheel, the performance of 1, 2, and 3 should be consistent, and there will be a bottleneck effect in the combination of high and low grades.

3. The particle size of the grinding wheel is well connected. In principle, the overall efficiency should be ensured. The latter stage should be able to correct the chipping wear marks of the previous stage and keep moving closer to the light.

4. When deploying, you should not only use the current meter swing or the noise level to debug the experience. You should always exit the glass and check the wear marks. The balance ratio of No. 1, 2, and 3 should be close to 7.5:2: The amount of grinding of 0.52 should be controlled within 1 mm.

5. The grinding wheel should use the front and rear ring working mode (that is, the swinging angle of the grinding wheel). The processing ratio of the front and rear rings is close to 8:2, and the grinding amount of the rear ring should not be too large. It should cover the front ring wear scar justly and evenly. The front and rear rings of the grinding wheel are opposite in direction, and the shape of the end face should be maintained at the factory shape and angle when the grinding wheel is consumed.

Third, the common problems and answers in the use of the grinding wheel

Question 1: After the glass is ground by the bilateral machine, there are still some phenomena such as chipping, falling corners, grinding and printing.

Answer: The grinding wheel particle size is not suitable or the performance is poor. The particle size should be adapted to the thickness range of the processing glass and the processing speed. For example, the No.1 and No.2 grinding wheels are equipped with 80 meshes+140 meshes, and the 8mm-25mm glass is very good. It is possible to grind 5-6mm. For chipping, generally, choose 100 mesh + 140 mesh to meet the requirements of 4-19mm. In addition, the No. 1 grinding wheel distributes the grinding amount too much to cause a small collapse. No. 2 should be able to correct the chipping and completely cover the No. 1 wear scar. The No. 2 is neglected, and the selected performance is poor. Although the appearance is No. 1, the problem should be Replace the high-performance No. 2 wheel and re-commission the reasonable distribution of machining allowance.

Problem 2: The working end angle of the grinding wheel is more outwardly inclined than the factory angle, and the outer low and high internal inclination are obviously increased, and even the inner and outer stepped step shapes appear.

Answer: The front and rear ring angles are not suitable or the motor is loose. The outside work of the front ring is too large, and the rear ring is not working. It is necessary to adjust the motor angle and fix it in time.

Question 3: The working end of the grinding wheel is close to the horizontal level, even the outer side is low in the inner side, and the remaining one-third of the final grinding wheel cannot be used.

Answer: The front and rear ring angles are not suitable or the motor is loose. The outside of the front end is not working, and the inner working capacity of the rear ring is large. The angle of the motor should be adjusted and fixed in time to properly distribute the front and rear ring machining allowance.

Problem 4: There are impact marks on the outside of the grinding wheel, or there is a phenomenon that the end face is annularly recessed, the alloy is bright, and so on.

A: This phenomenon occurs mostly in chamfering wheels or fine diamonds No. 2 and No. 3 grinding wheels. The reason is that when replacing a new grinding wheel or processing a thick glass span, the advance and retreat positions of the grinding wheel are not adjusted in time, causing the glass to directly hit the outside of the grinding wheel. , or the amount of processing dispensed greatly exceeds the range of the grinding wheel and is not corrected in time. It should be noted that the grinding wheel is first retracted and the grinding amount is gradually followed.

Question 5: There are still 2mm deep teeth in the whole gear that will collapse, commonly known as grinding, and can not continue to use.

A: The depth of the nozzle of the full gear = the height of the working layer + 1.5mm. The inner diameter of the working ring of the grinding wheel is 1.5mm, indicating that the working layer has been consumed. To prevent the grinding wheel from consuming 1/3, the machining allowance is large or thick. When the glass is used, the glass will impact the outer body of the grinding wheel, and the outer side of the working side is designed with a 3mm high corner. Therefore, the outer side seems to have 4mm of exhaustion, and the actual working layer is completely consumed.

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Mr. Michael Tian

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+8618632103983

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