Concrete cutting machine used are

– When the trowel speed is moderate, it can effectively flatten the raised parts of the concrete surface and fill the sunken parts. For example, in general indoor floor construction, if the trowel speed is set in a suitable range, such as 70-100 rpm, the blade on the trowel can initially level the newly poured concrete surface as the trowel moves forward. Because at this speed, the pressure and flattening effect of the blade on the concrete are relatively uniform, and it will not be over-cut due to too fast a speed, nor will it be unable to effectively deal with the unevenness of the surface due to too slow a speed. – When the trowel speed is too high, the cutting force of the trowel blade on the concrete surface is too large. This may cause over-cutting of the concrete surface, destroy the original structure of the concrete, and cause fine cracks or pits on the surface. Especially for concrete whose strength has not yet fully developed, too high a speed may excessively disturb the cement slurry layer on the surface, affecting the final quality of the concrete. – On the contrary, if the trowel speed is too low, the trowel blade will not have enough force on the concrete surface. This will make it impossible to effectively deal with the uneven parts of the concrete surface. For example, on the concrete surface with large stone protrusions or template splicing marks, the trowel at a low speed may not be able to remove these defects, resulting in the ground flatness not meeting the requirements. – Appropriate trowel speed helps to improve the compaction of the concrete surface. When the trowel rotates at a certain speed, the weight of the trowel and the rotation of the blade work together to exert pressure on the concrete surface, so that the particles in the concrete are arranged more closely. For example, in concrete construction with high bearing capacity requirements such as industrial plant floors, the trowel speed is controlled at about 80-120 rpm, which can make the concrete surface better compacted during the troweling process, thereby improving the bearing capacity and wear resistance of the ground. – When the speed is too high, although the surface looks smoother, it may actually make the mortar layer on the concrete surface too loose. Because too high a rotation speed will cause the water in the mortar layer to evaporate too quickly, and excessive rotation will destroy the bonding force between the mortar particles, resulting in insufficient surface compaction, which is prone to quality problems such as sanding and peeling during later use. – If the speed of the trowel is too low, it will not generate enough pressure to compact the concrete surface. This will make the porosity of the concrete surface larger and reduce the compactness of the concrete. Such a concrete surface is easily damaged when there are heavy objects rolling or frequent friction. – A higher trowel speed can make the concrete surface have better gloss. When the speed reaches a certain level, such as 100-150 rpm, the trowel blade can further smooth the mortar layer on the concrete surface during rapid rotation, making the surface more delicate and producing gloss. In some places with high requirements for appearance, such as shopping mall floors and exhibition hall floors, by appropriately increasing the trowel speed, a smooth mirror effect can be created. – However, if the speed is too high, it may cause wavy textures on the concrete surface, affecting the uniformity of gloss. This is because too high a speed will cause the trowel to vibrate during the rotation process, and this vibration is transmitted to the concrete surface, affecting the surface flatness and destroying the uniformity of the gloss. – When the speed is too low, the surface roughness of the concrete is greater and the glossiness is poor. Because the trowel rotating at a low speed cannot fully smooth the microscopic unevenness of the concrete surface, it cannot form a smooth surface, and can only obtain a relatively rough matte effect.

Need to RBI support line, branch channel steel, support the channel down the concrete, paved after the roll with the side of the roller and then scraping scraping again. After the completion of the initial condensate, and then polished machine. 1, RBI, pull the air line The use of machine construction technology: Lei Long – concrete laser leveling machine is to use the scraper will be higher concrete and take the initial level, to achieve the design requirements of the elevation. Using two-wheel automatic walking system, the vibration frequency of 4000 times / min, driven by the entire vibration plate with concrete vibrating effect. Lei Long concrete laser leveling machine construction width of 2.5 meters. Laser leveling machine leveling does not need to pull the control line, do not need to control the ground side of the template elevation, and by the leveling machine on the laser measurement and control system in real time control, as long as the laser transmitter without disturbance, regardless of the leveling machine to move to where, Can ensure that the pavement after the overall elevation of the ground is not affected. Using the machine construction process: first through the reference point, find the elevation, adjust the laser launcher control elevation. And then directly down the concrete, the machine a one-time scratch, mention pulp, compaction. To achieve large area paving.

    Wear: Regularly check the surface wear of the drive belt. If the belt surface has obvious cracks, peeling, or is worn to less than two-thirds of its original thickness, it is necessary to consider replacing it. For example, a new drive belt is 10 mm thick. When it is worn to less than 6-7 mm, its strength and transmission efficiency will drop significantly, and it is easy to slip. Observe whether there is wear or tear on the edges of both sides of the belt. Edge wear may be caused by misalignment of the pulley or excessive belt tension. Once the edge is damaged, the belt may be out of the groove during operation, resulting in interruption of power transmission. Elasticity and tension changes: Press the belt by hand to check its elasticity. If the belt loses its elasticity and becomes stiff, it may be because the belt is aging or has been under high load for a long time. In this case, the belt cannot effectively buffer and transmit power during transmission, which may easily lead to unstable power transmission. It is also important to check the tension of the belt. Appropriate tension can ensure good contact and power transmission between the belt and the pulley. If the belt is too loose, there will be obvious slippage. By observing the rotation of the pulley and the movement of the belt, it can be found that when the pulley rotates, the belt may slip on the pulley instead of rotating synchronously. If the belt is too tight, it will increase the wear of the belt and pulley, and will bring additional loads to components such as the motor and bearings. A belt tension meter can be used to accurately measure the belt tension. When the tension exceeds the specified range, the belt needs to be adjusted or replaced. Abnormal noise and vibration: When there is a problem with the drive belt, abnormal noise such as "chirp" or "snap" will be generated during the operation of the trowel. This noise is usually caused by abnormal friction between the belt and the pulley, which may be caused by belt wear, looseness, or impurities such as oil stains. At the same time, it will be accompanied by vibration, which can be felt by touching the body of the trowel or the bracket near the drive component. If the abnormal noise and vibration persist and are related to the belt after excluding other component failures, then the belt needs to be replaced.     Wear and elongation: Check the wear of the chain links. If the rollers, sleeves and pins of the chain links are worn out, the pitch of the chain will increase, causing the chain to elongate. Generally speaking, when the chain elongates by more than 3% 5% of the original length, the accuracy and stability of power transmission will be affected. For example, a chain with an original length of 1 meter is prone to tooth skipping when it is elongated by more than 30 50 mm. Observe the side wear of the chain. If the side of the chain is severely worn during the meshing process with the sprocket, it will cause poor meshing between the chain and the sprocket, increasing the risk of the chain coming off the chain. This can be judged by observing whether there are shiny wear marks on the side of the chain. These shiny areas indicate that the friction between the chain and the sprocket at this part is abnormal. Sprocket wear: The sprocket of the transmission chain also needs to be checked. If the tooth profile of the sprocket is worn, the top of the tooth becomes sharp or the tooth groove becomes wide, it will affect the meshing effect of the chain and the sprocket. When the tooth wear exceeds a certain limit (such as tooth thickness wear exceeding 10% 15%), it is necessary to replace the chain and sprocket at the same time, because the old chain and the worn sprocket cannot guarantee good power transmission and will accelerate the wear of the new chain. Lubrication and operating status: Good lubrication is the key to the normal operation of the chain. If the chain becomes dry and stuck during operation, it may be due to insufficient lubrication or lubricant failure. At this time, check the chain's lubrication system and add or replace the appropriate lubricant. If the chain still does not run smoothly under normal lubrication, such as jamming, tooth skipping or abnormal noise (such as "clicking"), it may be that the chain or sprocket is severely worn and needs to be considered for replacement.