Is it normal for the laser level to have heavy lines? How to solve it?

Concrete has strong compressive resistance but weak tensile resistance. The double-layer steel mesh significantly improves the tensile resistance of the pavement through the synergistic effect of the upper and lower layers of steel bars, reducing the risk of cracking caused by load or temperature stress. The double-layer steel mesh can evenly disperse the concentrated load to a larger area, reduce local stress concentration, and extend the service life of the pavement. When concrete shrinks or bends, the steel mesh can restrain the development of cracks and prevent cracks from penetrating the entire pavement structure. For pavements that frequently bear dynamic loads (such as heavy vehicle rolling), double-layer steel mesh can enhance the fatigue resistance of the structure and delay aging and damage.   Airport runways, port terminals, highways and other pavements that need to bear high loads. In areas with a high risk of uneven foundation settlement, double-layer steel mesh can reduce structural cracking caused by foundation deformation. In high temperature or severe cold areas, steel mesh can help resist temperature stress; in humid environments, double-layer arrangement can increase the thickness of the protective layer and improve corrosion resistance.   Usually, the upper steel bar is located 5~10cm below the top of the road surface, and the lower steel bar is close to the bottom. The middle is fixed by a bracket or a horse stool to ensure the thickness of the protective layer (generally 3~5cm). The diameter and spacing of the steel bar need to be determined according to the design load calculation. The common specifications are φ8~φ16mm and the spacing is 15~30cm. The steel mesh is connected by binding or welding to ensure integrity; the steel bars can be increased or reinforced in local weak areas.   Double-layer steel mesh may affect the fluidity of concrete. The slump needs to be strictly controlled, and vibration compaction should be ensured to avoid voids. Lay the bottom steel mesh first, and then lay the upper steel mesh after the concrete is poured (or pour in two times). The specific needs to be adjusted according to the design requirements. Perform maintenance in time after construction to prevent steel corrosion and concrete shrinkage and cracking. Through reasonable design and construction, the double-layer steel mesh can significantly improve the comprehensive performance of concrete pavement, especially suitable for projects with high requirements for durability and safety.

Instructions for operation and debugging of YZ30-4 medium-sized telescopic arm laser leveling machine: 1. When starting the continuous punching press, the screw must rotate clockwise to adjust the speed of the feeder, and the slider moves slightly slowly so that you can see whether the slider touches the nylon washer and the length adjustment screw during reciprocating motion. 2. Before connecting the power supply for testing, check whether the feeding direction is correct. 3. If the speed of the punch is constant and the feed distance needs to be shortened from long to short, first the lead screw should be guided to reduce the drop distance of the floating rod, and then the screw should be rotated clockwise to adjust the speed so that the feed can Match P. UNCH speed. 4. Adjust the distance between the material rack and the concrete laser leveling machine and the feeder, and adjust the distance appropriately according to the speed of the punch and the length of the feeder. After leveling, the material should be able to enter the feeder and mold smoothly. With incredible pulling power and a computerized automatic leveling control system, the YZ30-4E laser is a riding four-wheel drive device that can scrape flat in any direction and is easy to handle. Versatile as a laser scraper or laser controlled rake, the YZ30-4E provides simple, fast and accurate results whether you are scraping concrete or preparing roadbed. This is a telescopic arm type concrete laser leveling. Arms are up to 6 meters long to increasethe paving area, The body can rotate 360 degrees, with two-wheel steering, four-wheelsteering, and crab walking. Solid tire has a long anti-puncture life. Equipped with a hydrauliccleaning water pump to clean the working head at any time. Vanse offers a wide portfolio of products that cover concrete slab placements in all types construction projects. In addition, to equipment and software products, Vanse also sells parts, accessories and provides service and training to customers to keep their machines up and running and operating optimally.

  Laser leveling machine is a kind of equipment that uses laser as the reference plane and controls the leveling head in real time to achieve high-precision and fast leveling of concrete. The price of laser leveling machine equipment is relatively high, so we should pay attention to the maintenance of laser leveling machine equipment to extend the service life of laser leveling machine. In normal times, we should not only try to reduce the influence of harmful factors, but also ensure the normal working load when using laser leveling machine. The following best laser leveling machine manufacturers will explain to you how to maintain laser leveling machine. Mechanical impurities generally refer to non-metallic materials such as dust and soil, and some metal chips and wear products generated by engineering machinery during use. Once these impurities enter the interior of the machine and reach the mating surface of the laser leveling machine, the harm is very great. Not only will the relative movement be blocked and the wear of parts will be accelerated, but also the mating surface will be scratched, the lubricating oil film will be destroyed, and the temperature of the parts will rise and the lubricating oil will deteriorate. According to measurements, when the mechanical impurities in lubrication increase to 0.15%, the wear rate of the first piston ring of the engine will be 2.5 times greater than the normal value; when the rolling shaft enters with impurity particles, its life will be reduced by 80%-90%. Therefore, for engineering machinery working in harsh environments and complex conditions, first, high-quality, matching parts and lubricating oils and greases should be used to block the source of harmful impurities; second, mechanical protection work at the work site should be done well to ensure that the corresponding mechanisms can work normally and prevent various impurities from entering the machine. For faulty machinery, try to repair it at a regular repair site. When repairing on site, protective measures should also be taken to prevent the parts replaced during on-site repairs from being contaminated by dust and other impurities before entering the machine. The phenomenon of metal surface being damaged by chemical or electrochemical reactions with the surrounding medium is called corrosion. This corrosion not only affects the normal operation of the mechanical surface equipment, but also corrodes the parts inside the machine. For example, rainwater and chemicals in the air enter the interior of the machine through the external channels and gaps of mechanical parts, corrode the interior of the mechanical parts, accelerate mechanical wear, and increase the failure of the laser leveler. Because this corrosion effect is sometimes invisible and intangible, it is easy to be ignored, so it is more harmful. In use, management and operation personnel should take effective measures to reduce the impact of chemical corrosion on the machine according to the local weather conditions and air pollution conditions at that time. The focus is to prevent the invasion of rainwater and chemical components in the air into the machine and minimize rain operations. The size and nature of the working load of the laser leveler have an important influence on the loss process of the machine. Generally speaking, the wear of parts increases proportionally with the increase of load. When the load borne by the parts is higher than the average design load, its wear will be aggravated. In addition, when other conditions are the same, the wear under stable load is less than that under dynamic load, with fewer failures and lower life. Tests show that the wear of the cylinder of the engine will increase by 2 times when it works under unstable load compared with that under stable load. The engine working under normal load has a lower failure rate and a longer life. On the contrary, the failure rate of overloaded engines increases significantly, and the life span will be reduced compared to the design indicators. The wear of machines that are often in a wide range of load changes is greater than that of laser levelers that work continuously and stably. During work, the temperature of each component has its own normal range. For example, the temperature of general cooling water is 80-90℃, and the temperature of hydraulic oil in the hydraulic transmission system is 30-60℃. If it is lower than or higher than this range, it will accelerate the wear of parts, cause the lubricating oil to deteriorate, and cause changes in material properties. Experiments show that the main drive gears and bearings of various construction machinery running in lubricating oil at -5℃ will have 10-12 times more wear than running in lubricating oil at 3℃. However, when the temperature is too high, it will accelerate the deterioration of the lubricating oil. For example, when the oil temperature exceeds 55-60℃, the oxidation rate of the oil will double for every 5℃ increase in oil temperature. For this reason, during the use of construction machinery, first, it is necessary to prevent overload operation at low temperature, ensure the normal operation of the low-speed preheating stage, and make the machine reach the specified temperature before driving or working. Do not ignore its important role because there is no problem at that time; second, to prevent the machine from running at high temperature, the values ​​on various temperature gauges should be checked frequently during the operation of the machine, and the machine should be stopped immediately for inspection if a problem is found, and the fault should be eliminated in time. For those who cannot find the cause for a while, the machine must not be allowed to work with the disease without treatment. In normal work, pay attention to checking the working condition of the cooling system. For water-cooled machinery, it must be checked and cooling water must be added before work every day; for air-cooled machinery, the dust on the air-cooling system must also be cleaned regularly to ensure that the heat dissipation air duct is unobstructed. The above content is the usual use and maintenance method of the laser leveling machine. I hope it will be helpful for everyone to maintain the laser leveling machine. If you still don't understand anything, or have any questions about the laser leveling machine, please call us for consultation.