1, in the use of the paving machine, how to do a good job in the maintenance of hydraulic system? Answer: in the use of the paving machine, do a good job in the maintenance of hydraulic system, you can greatly reduce the fault. General should pay attention to the following points: (1) hydraulic oil in hydraulic tank joined the former, should use clean containers of oil, hydraulic oil must be after oil filter filter, then add the hydraulic oil tank; the replacement cycle of the hydraulic oil as the oil quality and (1000h changed once; replacement of hydraulic oil should be in the working temperature; in order to ensure good heat dissipation of the hydraulic system, should also regularly clean hydraulic oil radiator. (2) due to the asphalt paving machine construction environment is generally relatively poor, hydraulic oil filter replacement cycle should also be shortened (generally was750h is appropriate), replacing with a new filter element, when should be checked, prohibited the use of deformed, pollution or rusty filter. (3) in the daily start of the engine work, should be idle for some time after the operation, and then to control the implementation of components, so that the use of hydraulic pump. (4) due to the long-term use, the hydraulic system parameters will change, therefore, should be regularly check the hydraulic system parameter settings, to be adjusted in time.
Bitumen known as asphalt in parts of the world, is a hydrocarbon material. It has high viscosity and colloidal structure, and black to dark brown color. It's dissolvable in carbon disulfide and carbon tetrachloride. It is impenetrable to moisture and water, electrical insulation, elasticity, moderate resistance against acids, bases and salts. Its adhesions to other materials are the most important features of bitumen. Bitumen 60/70 is used for road construction projects in temperate regions. It can be used to produce some of the basic layers of asphalt and insulation. Technical and grades specification are available upon request.
Performance Grade (PG) bitumen is bitumen which is graded based on its performance at different temperatures. The Long-Term Pavement Performance(LTPP) has given certain algorithm to calculate the temperature of the pavement based on the temperature of the air above. From this, the highest and the lowest temperatures of the pavement is calculated and the bitumen that performs well in that temperature range is selected. Penetration grading and viscosity grading are somewhat limited in their ability to fully characterize asphalt binder for use in Hot Mix Asphalt(HMA) pavement. Therefore, as part of the Superpave research effort new binder tests and specifications were developed to more accurately and fully characterize asphalt binders for use in HMA pavements. These tests and specifications are specifically designed to address HMA pavement performance parameters such as rutting, fatigue cracking and thermal cracking.
Supplier: Bitumen, asphalt, filler, car parts, engine, switch, sensor
Services: Shipping
Supplier: Low beds, silo trailers, oil tanker trailers, fuel tanker trailers, bitumen tanker trailers, water trailers, dump trailers, dolly trailers, hydraulic trailers, multi axles trailers, mobile cranes, compressors, generators, trailers axles and tires
Supplier: Expanded clay aggregate (leca), bitumen 60, 70 85, 100, painting, auto parts
Supplier: Metal scrap, bitumen, iron ores, coal, used cnc machines
Supplier: Coal, furnace oil , bitumen, marine contractor, marine equipment.
Supplier: Bulldozer, road roller, wheel loader, motor grader, asphalt, paver, construction machine parts
