quality control has guiding significance

Sheet wheel performance depends largely on the merits of using abrasive quality, good quality abrasives, grinding wheels, high grade, and in the more expensive price. As the domestic high-grade bauxite resource depletion, a variety of raw materials and coal prices in mid-rise, coupled with energy saving the environment forced shut down, corundum prices are cutting discs  rising fast, from time to time will be in short supply. How rational use abrasives, improve market competitiveness, is the most important enterprises grinding technology considerations.Best approach is to not participate in the core sheet wheel portion of the cutting action of poor quality with low prices instead of secondary abrasive, abrasive cutting quality full performance, lower manufacturing costs. This approach resin bolts and large diameter cylindrical grinding wheel resin grinding wheel has been widely used. For thin grinding wheel, since the intermediate screening, the bottom and the top to separate the feed, if the external and the core are bandsaw blades  stepwise feeding, in the process to implement quite difficult, is still only vision in the future, if successful, cost reduction, profit improvement , on sheet wheel manufacturing is undoubtedly a far-reaching "technological revolution."Compare prices now wear suitable strategy for various consumer groups, in accordance with abrasive made of different grades of abrasive products, the best abrasive used in most need sheet wheel, avoiding production of low-grade abrasive grinding wheels with high-grade, as far as possible best use, cost-effective in improving the premise, a great effort for each grade of the product have done "extreme."High-grade sheet wheel stable, targeted, reproducible tamping rammer  production has generally adopted a sand, special products and even to use zirconium corundum, calcined alumina abrasive and post-processing. The market is dominated by imported products, most cost-effective production of high sheet is not high, not discrimination, targeted not strong, still need further research and development efforts.

wheel speed hazards arising from the work

Not only cause wheel breakage near in death or serious injury, but can also cause serious damage to the plant or housing. Although the manufacturer has taken various preventive measures, but if used carelessly careful wheel still occur occasionally break or crack accidents. Applications to take the following precautions concerning:1. Handling and  diamond bandsaw blades storageIn shipping and handling process, if moisture enters phenolic resin bonded grinding wheel, it will reduce its strength; ceramic bonded grinding wheels and, then very sensitive to temperature changes repeatedly; uneven absorption of moisture causes the wheel out of balance . Therefore, in the loading and unloading wheel must be handled with care, and to be placed in a dry and sheltered place, in order to maintain the grinding wheel normal state.2 crack detectionDeal with the new wheel checked to ensure drying and grinding wheels from 9 inch saw blade  damage. The easiest way is to tap the wheel with a mallet. Intact ceramic grinding wheel will be issued by the crisp sound. Wheel with an organic adhesive bond will be issued muffled sound, but with a defective wheel crushing sound is emitted distinction. For suspected wheel, they should check that the delivery person.3 TestOfficial use of the new wheel should be performed before full trials and should be carefully observed. In the Diamond tool  wet, the wheel should be idling for some time, get rid of the water. Otherwise, the water will accumulate in the lower part of the wheel, causing the wheel imbalance, resulting in next time may burst.

the grinding quality materials requirements

Cylindrical grinding, the correct choice of the grinding wheel is to ensure workpiece quality, increase productivity, reduce costs the important part. Select wheel features (abrasive, grain size, hardness, combined etc.), you must make a good abrasive grinding performance; grinding wheel with  concrete diamond blades suitable self-sharpening; generated when grinding wheel grinding force, grinding heat is relatively small; make easy dulled abrasive grinding wheel, have a higher life expectancy; reach workpiece machining accuracy and surface quality requirements, the machined surface is not easy to produce burns and cracks, grinding wheel, the workpiece and the grinding quality materials requirements are two key factors that can not be ignored.Width of grinding wheel speed is too high workpieces, grinding is easy to  granite polishing pad produce self-excited vibration, the surface roughness increases wheel life low; workpiece speed is too low, so that the surface is easy to burn. Generally the wheel speed and workpiece speed ratio between 120-200. Smaller diameter of the workpiece should be whichever is greater.Two radial feed speed selectionRadial feed speed is mainly affected by process system rigidity, workpiece shape accuracy limitations, when the process system less rigid, high precision shape of the workpiece, the radial feed speed should choose a small value, or deformation of the workpiece, which is difficult to ensure accuracy. Generally within the scope of the 0.5-0.7mm/min selection.

grinding fluid supply requirements more effectively

By spray method for increasing the pressure (1MPa above), increasing the grinding fluid jet velocity, airflow speed rotating grinding wheel broke, the grinding fluid flow into the grinding zone  diamond blades effectively, rapidly remove heat, improve the grinding effect. Used cylindrical grinding nozzle structure, the use of nozzles spaced high-speed airflow baffle will ensure the smooth grinding fluid injected into the grinding zone, while preventing grinding fluid splash.
 When the wheel speed is high, the wheel periphery airflow also strengthened, then you can take appropriate measures, such as adjusting the grinding fluid nozzle orientation. In the air force concrete diamond blades  jet force and effect, so just grinding fluid is injected into the grinding zone; mounting angle of the nozzle spray liquid should just make some up blocking airflow, partially into the grinding zone. Furthermore, you can increase the injection pressure and grinding fluid injection amount, reducing the increase of the nozzle outlet cross-sectional area and the nozzle width.
 High-speed grinding, grinding fluid supply requirements more effectively, use reflective supercharger. When an ordinary pressure grinding fluid from the tube into, sprayed onto the wheel surface through holes, grinding fluid speed centrifugal force is reflected back diamond core drills  booster bottom. The bottom of the grooves and ribs, grooves and the grinding fluid turbulence vortex, at the top of the convex rib dynamic pressure generated from the surface toward the wheel washing action, the cooling effect is significant flushing. The gap of the grinding wheel surface ribs equals 1.5 ~ 5mm.

Diamond high hardness and excellent mechanical properties make diamond tools

 Diamond high hardness and excellent mechanical properties make diamond tools for processing a variety of hard materials become indispensable effective tool. Metal base of the diamond matrix adhesion (matrix package Xiang ability) that affect the life and performance of diamond tools is one of the main factors.
The diamond and general metals and  alloys having a high interfacial energy between, resulting in the diamond particles can not be generally low-melting alloy infiltration, poor adhesion, in the conventional manufacturing techniques, the diamond particles alone after the carcass shrink the mechanical gripping force embedded in the metal matrix of the  12 inch saw blade carcass, but not form a strong chemical bonding or metallurgical combine, resulting diamond particles in the work easily with metal base carcass separation, greatly reducing the diamond tool life and performance levels. Most of the diamond impregnated type tool utilization is low, a lot of expensive diamond in the work lost in the litter fall into. Lin Zengdong other first surface metallization using diamond diamond surface to impart a number  drill bits of new features, such as excellent thermal conductivity, good thermal stability, improving its original physical and chemical properties of the metal or alloy to improve its wettability of the solution, etc.
Diamond surface metallization problem , it caused a domestic diamond tool manufacturing industry's attention. Many people committed during the sintering process to achieve the diamond surface of metal in the matrix material or on the diamond surface to add the pre-glue strong carbide metal powder (which is not heated before the diamond, not associated with a chemical coating reaction only belong diamond coating) to expect them hole saw blades  to realize the sintering process chemical bonding of the diamond. Although the literature has demonstrated some metal such as tungsten (not oxidized) at a lower temperature (800 ℃ or so) WC can be formed on the surface layer of the diamond, but the diamond surface to achieve the pre-metallization process used to view, to be in a vacuum conditions, 600 ℃ heating above one hour to get the desired adhesion. Impregnated with the most commonly used cutting tool diamond sintering conditions of view, non-vacuum or low vacuum of not more than 900 ℃ heated for 5 minutes or so

Process for producing diamond saw blade can be described as necessary

 Diamond saw blade manufacturing process what is it? Below to learn more about it!
Process for producing diamond saw blade can be described as necessary under pressure in metal powder sintering process, a powder metallurgy process: metal powder mixed dish symmetry at high temperature (800-1000 ℃) and the inevitable pressure (180 - 250Kgf/cm2), through the diffusion between the powder particles, welding, compounds, recrystallization and  carbide saw blades the like a series of physical and chemical impregnation, has a certain shape to form a sintered body and the machine functions, namely head.small blade used Precautions When using the saw, there must skids, and in the hands or feet fixing the other end of sawing wood to produce unexpected slip roll, saw themselves need to maintain smooth, do not bend, so the saw body deformation. If you saw a oiled, it certainly erased after the first oil used. When used to pay attention to the direction of force saws, saws launch force, back when the relaxation. Aperture selection apertures are relatively  brick saw blades simple parameters are mainly required by the device options, but in order to maintain the stability of the blade, 250MM best selection of aperture blades above larger device. At present, the design of standard aperture, 120MM and below, mostly in diameter 20MM Kong ,120-230MM mostly 25.4MM Kong, more than 250 multi-aperture 30, some of the imported equipment has 15.875MM hole, multi-chip saw relatively complex mechanical aperture , mostly with keyway to ensure stability. Regardless of pore size, can be transformed through the sds drill bits  lathe or EDM, lathes car washer can be set in a large aperture, EDM can reaming necessary requirements for the device.
Alloy head type, substrate material, diameter, number of teeth, thickness, tooth, angle, aperture and a series of parameters combined into a whole hard alloy saw blade, to a reasonable choice and match in order to better play to its strengths.

Diamond grinding wheel before the operation must be sure to go through professional training

Diamond grinding wheel before the operation must be sure to go through professional training, the following are often encountered during operation problems, a quick look:
Side grinding problem:
In grinders everyday use, we often  PCD grinding wheel find that some operators, regardless of the type of grinding machine, regardless of the type of wheel, casually on the side of the grinding wheel to use, which is a serious violation of safety rules of the illegal operation behavior. Procedures used by the peripheral surface should not be used to do the side face of the grinding wheel, this wheel radial strength greater axial strength is small, the operator excessive force will cause wheel broken, even wounding, in the actual The use of the process should prohibit such behavior.
Positive operational issues:
In everyday use, many operators sds drill bits  facing the wheel always used to operate because this direction can be put into effect, in fact, this behavior is grinding machine operation should specifically prohibited behavior. Follow the rules, use the grinder grinding the workpiece, the operator should stand on the side of the diamond grinding wheel, front wheel shall not operate to prevent a wheel failure, or the wheel broken wheel flying flying out.
Force operational issues:
In the grinding machine is used, some operations, especially the younger operators, for the sake of grinding speed, excessive ceramic tile saw  force is too large, which is a very unsafe behavior. Any wheel flat body has a certain intensity, doing so may cause the wheel broken, and even flying out, but also a should be prohibited.