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  1. The grinding efficiency is high, andChina grinding abrasive disc consumption is relatively slow;
  2. Diamond resin grinding disc is low-temperature curing, the production cycle is short, the equipment and supply process is relatively simple; because the resin has fluidity, it is easy to form a grinding disc with a complex surface.
  3. Use the dresser to shape (adjust the dynamic balance, shape) as shown in the figure above. Since the dressing of the dresser is used, the abrasive grains on the surface of the grinding disc are not sufficiently exposed. Therefore, it is necessary to sharpen.
  4. China grinding abrasive disc has a certain elasticity, which is beneficial to improve the roughness of the surface of the workpiece, and is mainly used for fine grinding, semi-finishing, knife grinding, polishing and the like;
  5. For special steels such as tungsten, tungsten-containing molybdenum high-speed steel, vanadium alloy steel, cobalt alloy steel, special high-speed steel tool sharpening, super-finishing of difficult-to-machine heat-resistant steel workpieces, and honing of other steel quenching tools.
  1. Low processing cost: The cost of hot dip galvanized steel coil for sale and rust prevention is lower than that of other paint coatings.
  2. Durable use: in the suburban environment, the standard hot-dip galvanizing anti-rust thickness can be maintained for more than 50 years without repair; in urban or offshore areas, the standard hot-dip galvanized anti-rust layer can be adhered to 20 years without repair.
  3. Good reliability: the galvanized layer and the steel are metallurgical links, become part of the steel surface, so the durability of the hot dip galvanized steel coil for sale is relatively reliable.
  4. The plating resistance is strong: the galvanized layer forms an extraordinary metallurgical structure, which can accept mechanical damage during transportation and use.
  5. Full maintenance: each part of the plated parts can be plated with zinc, even in the depressions, sharp corners and hidden places can be fully maintained.

The low price grinding disc is made of diamond abrasive as the raw material, and the metal solid powder, the resin powder, the ceramic and the electroplated metal are respectively used as the bonding agent, and the circular fixed abrasive having the through hole in the center is called a diamond grinding wheel.


Use of low price grinding disc

Due to the characteristics of diamond abrasives (high hardness, high compressive strength and good wear resistance), diamond grinding tools are an ideal tool for grinding hard and brittle materials and hard alloys in grinding, which is not only efficient but also highly accurate. High, and the roughness is good, the abrasives are used less, the service life is long, and the working conditions can be improved.


It is widely used in low-iron content metal and non-metal hard and brittle materials, such as hard alloy, high-aluminum porcelain, optical glass, agate gemstone, semiconductor material, stone, etc., which are difficult to process with ordinary abrasive tools.

Hot dip galvanized steel coil for sale is a kind of steel with a slightly complicated process, but our galvanized strip producer does not think it is a difficult thing. In our opinion, the value of galvanized strip is its How much glory can we bring to our lovely country. In the past few days, our athletes in London also fought on the battlefield.


This reminds us of what we should do, but the only thing we can do is to produce better quality hot sale galvanized steel coil. This is our deep love for the motherland and our support for the sports world. At the time when the London Olympics came to a close, we looked forward with great excitement, looking forward to, looking forward to us becoming an international star, and looking forward to our galvanized strip one day to the world, let us The export trade is broader. Let more people around the world know that we are constantly developing and progressing.


The galvanized steel strip is made of high quality cold rolled steel coil china or hot rolled steel coil with different degrees of zinc plating. The hot-dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life. The hot dip galvanized steel coil for sale has a complex chemical and physical reaction in the zinc solution to form a corrosion-resistant structure of zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the strip steel matrix, so the corrosion resistance is strong.

Here are the five points you need to pay attention to when using 4.5 inches grinding disc last time.


  1. 4.5 inches grinding disc during the grinding process, the coolant should be used correctly; if the coolant is not used, it must be dust-proof.
  2. Each resin disc has a high level of use and line speed. Be sure to check the speed of the machine before installing the machine. Do not exceed the speed indicated on the disc to ensure that the machine has a complete protective device, the center hole of the disc and the center shaft of the disc. Must match, otherwise, it cannot be used.
  3. The resin discs on both sides of the flange must have the same shape and size as the cheap metal grinding disc. The flange diameter should meet the requirements, and there should be grooves on both sides.
  4. Be sure to tighten and fit when installing and fixing. After the installation is complete, idle the machine for about one minute.
  5. Regardless of whether it is ground or not, the pressure given should be uniform. When the grinding disc is adjusted to rotate, it is strictly prohibited to collide with the workpiece. When entering the tool, it should be carried out gradually. When cutting large diameter workpieces, reduce the contact surface between the grinding wheel and the workpiece.

If you are looking for high-quality metal grinding discs and cheaper grinding discs in China, please contact us.

What are the protective principles of outer zinc in China Galvanized Steel Roofing Sheet for sale? Chemical house corrosion is a direct chemical reaction between the metal and surrounding dielectrics. For example, the chemical action of dry gas (absolutely water-free) and non-conductive liquid medium (non-electrolyte) on zinc is called typical chemical corrosion.


Wave Type Galvanized Corrugated Steel Sheet is mainly used outdoors, and its corrosion environment is relatively poor, so it requires a thicker slope. In addition, the zinc coating belongs to the anode protection, the uneven coating is not a problem, the thicker the ship layer, the longer the service life, the characteristics of hot money zinc just can meet these requirements.


The electroplated zinc coating is uniform, firmly combined with the weight, well and less surface subsidence, but the thickness of the coating is thin, only one fifth to one-seventh of the thickness of the hot zinc coating. If the thickness of the zinc coating on the slope is increased, not only the power consumption is high, but also the residence time in the electrolyte needs to be increased, so the equipment should be increased accordingly. The thickness of the zinc coat is generally about 18 g/m, so its application range is limited by thorium. Moreover, its production cost is high and its production is low. Its production capacity in the world is only about one-seventh of that of hot zinc. Although the production of electrolytic zinc is increasing continuously, it is not a strong rival to the development of thermal zinc.

A grinding wheel is an in-homogeneous object. When the fast working grinding wheel rotates, it causes vibration because its center of mass does not coincide with the center of rotation. This state is called the imbalance of the grinding wheel. Wheel imbalance can bring a lot of harm:

  1. Acting on the grinding machine bearing, causing the main shaft to vibrate and accelerate the wear of the grinding machine spindle;
  2. The additional increase of the rotary stress on the grinding wheel, reduce its rotational strength, and may even cause it to rupture upon rotation;
  3. Intensify the vibration of the grinding wheel and the workpiece system, which is manifested by the occurrence of vibration marks on the surface of the workpiece to be processed, and the machining accuracy and surface roughness are deteriorated;
  4. Affect the uniformity of the self-sharpening of the grinding wheel, so that the grinding wheel wears unevenly.

Before the cheap metal grinding disc is put into use, it is very important to install it correctly. The correct installation can ensure the normal and long-term operation of the grinding disc. If the grinding disc is installed incorrectly, it will not only affect the normal operation and efficiency of the grinding disc, but also shorten the service life of the grinding disc. damage. Let's take a look at the five steps to properly install the grinding disc:

  1. Check the characteristics of the grinding disc, whether it meets the requirements of use, and whether the grinding disc and the spindle size match.
  2. The grinding disc is freely assembled to the grinding disc spindle and cannot be squeezed by force. The inner diameter of the grinding disc should be properly matched with the main shaft and the chuck to avoid being too large or too small. The mating surface is clean and free of debris.
  3. The chuck of the cheap metal grinding disc should be symmetrical, and the radial width of the pressing surface should be equal. The pressing surface is straight, and the side of the grinding disc is in full contact, and the clamping is stable, preventing the two sides of the grinding disc from being deformed or even broken due to the unbalanced force.
  4. A flexible material gasket (such as asbestos rubber sheet, elastic cardboard or leather) with a certain thickness should be sandwiched between the chuck and the end face of the grinding disc to make the clamping force of the chuck evenly distributed.
  5. To tighten the tightness of the cheap metal grinding disc, it should be pressed enough to drive the grinding disc to produce no sliding, and should not be too tight. When tightening the large chucks with multiple bolts, they should be gradually and evenly tightened in the order of the diagonals. Do not tighten the bolts in the circumferential direction, or tighten one bolt at a time. To tighten the grinding disc chuck, only the standard wrench can be used. It is forbidden to use the long spanner or tapping to increase the tightening force.

The cheap grinding disc feed speed

The feed rate is the feed rate of the sawed stone. Its size affects the sawing rate, the force on the cheap grinding disc and the heat dissipation in the sawing area. Its value should be selected according to the nature of the stone being sawed.

Generally speaking, sawing softer stone, such as marble, can increase the feed speed appropriately. If the feed speed is too low, it is more conducive to improving the sawing rate. The sawing of fine-grained, relatively homogeneous granite can increase the feed speed appropriately.

If the feed speed is too low, the diamond edge is easily smoothed. However, when cutting granite with coarse grain structure and uneven hardness, the feed speed should be reduced. Otherwise, the vibration of the grinding wheel will cause the diamond to break and reduce the sawing rate. The cutting speed of sawing granite is generally selected within the range of 9m~12m/min.

In the actual work, we can often see that the workers who carry the long life grinding wheel in a short distance do not take any protective measures, just rolling the grinding wheel directly on the road and pushing the grinding wheel with the solid wheel. It is a disregard for the transportation and storage regulations of diamond grinding wheels, and it is extremely irresponsible for the operator's personal safety. It has laid a huge safety accident hazard for the next operation. Next, let's look at the introduction of the correct transportation method of long life grinding wheel. 1. Long-distance transportation: Adding long-distance transportation and handling, the diamond grinding wheel should be completely protected and packaged, and the grinding wheel can be fully filled with soft materials that have no significant impact on the environment to prevent vibration and impact during handling. effect. 2. Short-distance transportation: The following is divided into 3 small points to explain. a. Prevent the diamond wheel from falling or being hit by impacts and impacts during handling; b. When rolling must be carried, place a cushion of wood, rubber or straw bag on the ground and gently roll it on it; c. Specially heavy long life grinding wheel should be transported with special handling tools. The tools used should be equipped with soft material gaskets. Vehicles should be equipped with inflatable tires. It is strictly forbidden to use solid wheel tool carts for handling.
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