The hottest high-performance grinding wheel and th

The reduction of high-performance grinding wheels and grinding costs

the global financial crisis has had a great impact on manufacturers, which also prompted many enterprises to learn from the pain and pay more attention to the importance of cost optimization. Of course, simply lowering prices to suppliers is by no means an effective way to seek long-term development. For those enterprises that want to maintain a leading position in the field of grinding, it is particularly important to continuously launch products with high grinding efficiency and long service life, so as to really help users reduce the comprehensive grinding cost

Saint Gobain abrasive grinding tool norton quantum (hereinafter referred to as NQ) ceramic corundum grinding wheel was launched under this background. Since the product was launched in the Chinese market in April 2009, it has shown excellent performance in many application fields, such as roll grinding in the steel industry, bearing inner hole and channel grinding, and camshaft grinding in the automotive parts industry

application case of grinding wheel in the groove grinding of bearing outer ring

grinding wheel user: a bearing factory in Jiangsu Province, supporting automobile manufacturing

facing the problem: it is necessary to greatly improve the bearing capacity

a bearing factory in Jiangsu Province is supporting bearings for automobiles, and the substantial increase in automobile output makes its bearings in short supply. Therefore, the company is facing the question: whether to purchase another batch of grinding machines or adopt other methods to overcome the difficulty of insufficient production capacity? The addition of grinding machines also means the expansion of plant facilities. At the same time, a new group of employees need to be recruited to operate these grinding machines, which is indeed a lot of investment

a new way is to double the current production efficiency by selecting better grinding wheels, which can also achieve the same purpose of expanding production without huge investment. NQ grinding wheel has come into the vision of this bearing factory with its unique abrasive performance. The application practice shows that this grinding wheel can increase the feed rate by more than 50% compared with ordinary white corundum or single crystal corundum grinding wheel in channel grinding, and the service life can be increased by as much as 3 times

the test of NQ grinding wheel in this bearing factory is listed below

nq grinding wheel experiment summary

nq grinding wheel is made of Saint Gobain's latest generation of ceramic abrasive. Its difference from the previous generation of ceramic abrasive SG is that its abrasive particles have a sharp shape, and there are also changes in the crystallization technology and sintering process, so that it has better fragmentation and machinability under the condition of low grinding force, and can achieve the effect of increasing the amount of metal removed in unit time by 30%-50%, And compared with other ceramic abrasives (such as SG), the dressing interval can be extended by 33%-100%

grinding process: outer ring inner channel grinding

workpiece material: GCr15, hrc

workpiece roughness requirements: ra0.4

workpiece roundness requirements: μ M

grinding wheel model: the research team of a grinding wheel manufacturer believes that the number is 60*12*10 wa100-kv; Saint Gobain NQ grinding wheel 60*12*10 1nqs10 FRP/elastic element fatigue life testing machine 0-k8vs

experimental summary: the original grinding wheel is trimmed once for each workpiece, and the NQ grinding wheel is trimmed once for each five workpiece, the grinding efficiency is nearly doubled, and the service life of the grinding wheel is extended by at least three times

for the application case of steel mill roller workshop

grinding wheel users: a steel mill roller workshop

facing the problem: the production capacity of the roller workshop needs to be greatly improved

the original model of the grinding wheel used in the roller workshop of this factory is 915*100*304.8 39c36-lb, and it takes more than 50 minutes to grind a roller. Due to the increase of steel production, the production of the grinding roll workshop has reached saturation. The delivery time of a new grinder needs 10 months, and it also involves installation, commissioning and operator training. In view of the existence of many uncertain factors in the current market, the investment in fixed assets is also quite cautious. Therefore, the customer proposed that as long as the efficiency of the grinding wheel can be increased by 30%, the price of the grinding wheel can be increased by 50%

this steel plant finally selected Saint Gobain NQ grinding wheel (model: 915*100*304.8 3nqg36l/mb). The use results are: under the same grinding parameters (see table), the service life of the grinding wheel is increased by 55%, and the feed rate is also improved - especially the feed of both coarse grinding and fine grinding #1 processes is increased by 60%, the time of grinding a roller is shortened to 35 minutes, the efficiency is increased by 30%, and the service life is extended by 25%

test results of using NQ grinding wheel in a steel plant

for the application case of the grinding roller workshop in a steel plant

grinding wheel user: the grinding roller workshop in a steel plant

faces a problem: the production capacity of the grinding roller workshop needs to be greatly improved

the grinding wheel model originally used in the grinding roller workshop of this plant is 915*100*304.8 39c36-lb, and it takes more than 50 minutes to grind a roller with a low-temperature groove to use the progress clock. Due to the increase of steel production, the production of the grinding roll workshop has reached saturation. The delivery time of a new grinder needs 10 months, and it also involves installation, commissioning and operator training. In view of the existence of many uncertain factors in the current market, the investment in fixed assets is also quite cautious. Therefore, the customer proposed that as long as the efficiency of the grinding wheel can be increased by 30%, the price of the grinding wheel can be increased by 50%

this steel plant finally selected Saint Gobain NQ grinding wheel (model: 915*100*304.8 3nqg36l/mb). The use results are: under the same grinding parameters (see Table 2), the service life of the grinding wheel is increased by 55%, and the feed rate is also improved - especially the feed of both rough grinding and fine grinding #1 processes is increased by 60%, the time of grinding a roller is shortened to 35 minutes, the efficiency is increased by 30%, and the service life is extended by 25%

the grinding roller workshop is quite satisfied with the use effect, and all grinding wheels are replaced with NQ models. Because the grinding cost itself has been reduced by 20%, which is not included in the saved relevant investment

conclusion

if only the purchase cost of the grinding wheel is simply evaluated, the unit price of the above NQ grinding wheel is several times higher than that of the existing domestic grinding wheel, and the improvement of its service life mainly shows several characteristics: 1. It is almost the same multiple, and the direct grinding cost does not seem to have been reduced. However, once the comprehensive grinding cost is thoroughly examined, its significance is different

the first is the improvement of production efficiency, which solves the bottleneck of production capacity and saves a lot of equipment investment; Secondly, it used to be that one piece of grinding wheel was trimmed once per grinding, which resulted in long auxiliary hours of dressing and heavy workload of detection. Now, five pieces of grinding wheel are trimmed once, which not only ensures the stability of product size, but also reduces the frequency of detection and reduces the rate of waste products caused by size out of tolerance; Reducing trimming also means that the consumption of trimming tools (diamond pens) is reduced, which can also save considerable expenses. The above are the reflection of comprehensive costs. Only from this perspective can we truly reflect the overall processing level of the enterprise