01 what should I pay attention to when driving a concrete mixer
Driving a concrete mixer, for experienced drivers, the general driving knowledge will be good. It should be reminded that since the concrete is fluid, when the vehicle turns sharply, the speed must be reduced to avoid the centrifugal force generated by the concrete turning making the vehicle unstable!
What are the effects of loading more concrete in 02 mixer
The mixer truck below 9 m3 is loaded with too much concrete, which will leak during climbing; When the 12m3 mixer truck is loaded with more concrete, the mixing will be layered, the concrete sand rate is low, the stone particle size is too large, and there are many stones pumped to the construction site.
03 new mixers are usually easy to have problems after driving for a few years
Generally, it takes five years to pull dry materials and seven years to pull wet materials. Generally, the mixer truck is prone to problems after three years. The problems of the mixer truck are closely related to personal maintenance and manufacturers.
04 what if the concrete solidifies in the mixer
After the concrete is solidified, its main components are dicalcium silicate and tricalcium silicate. Theoretically, hydrochloric acid can react with it to remove its solid shape. But in fact, it is difficult to operate because the material port of the mixer is very small, the amount of hydrochloric acid is difficult to control, and hydrochloric acid can also react with the tank of the mixer. In practice, the tank body is often cut by electric welding or gas cutting, and then the solidified concrete is mechanically broken.
What does loading on 05 mixer refer to?
Loading on the mixer truck refers to the things of the mixer truck other than the chassis fender, including the mixing tank and support, inlet and outlet hopper, hydraulic system and reducer, water tank and pipeline, operating linkage, etc.
06 is the hydraulic system of general mixer manufacturer domestic or imported?
Generally, the manufacturer will select according to the size of the mixer truck and the needs of customers. The standard configuration below 6m3 is domestic system (optional import), and the standard configuration above 6m3 is imported system.
07 is it better to choose quantitative or variable hydraulic pump for small volume mixer?
The hydraulic pump is the main component of the mixer truck. Generally, the mixer truck below 6m3 is the standard quantitative pump, but it is recommended that the customer choose the variable pump.
08 welding process of mixer truck
At present, general manufacturers adopt full-automatic seamless welding for the welding of the whole vehicle, and full-automatic seamless welding is adopted for circumferential seam and longitudinal seam.
09 payment method of mixer truck
There are a variety of payment methods for mixer trucks, including full payment and installment payment. Generally, manufacturers will have a certain discount for full payment, but there is no discount for installment payment, and the interest is the same as that of the bank.
10. The discharging of concrete mixer is laborious
If it is because of the concrete, we should see whether the slump is too small, the concrete strength is too high, or the concrete is too sticky. For the above reasons, the concrete can be adjusted appropriately according to the construction requirements; If it is always difficult to lower, it is necessary to consider whether there is a problem with the blade angle and the blanking port.
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