Production process of natural SVR Rubber CV60
Production by dipping method Rubber CV60
Production as the production of SVR CV60, but when it comes to chopping into the drying drum, a system is designed including a pallet and a pool used to soak chemicals. The HNS solution is mixed in the recommended dosage tank as follows: mix 1N HNS solution (according to the number of moles of H2SO4), then every time you dip the bucket with pus into it, just completely cover the latex, remove the latex to drain. In the next lake, if you want to save the amount of liquid falling into the lake, use the pump to switch back and forth to the plunge pool. After taking a sample of the solution to determine the number of moles of H2SO4 (with the standard NaOH solution), calculate the loss divided by the weight of the latex so that in about 2 kg / ton of the chemical that has adhered to the latex, it is reached. required, and at the same time see how much the remaining moles in the solution must be added to equal the original, based on the calculation results, it is necessary to determine how many buckets must be dipped before adding HNS. Since the more accurate the calculation, the higher the percentage of finished product quality, Moreover, if the raw material has too much viscosity, there are two solutions to overcome it: firstly, increasing the drying temperature to monitor the measurement to correct it. The second is to choose raw materials with corresponding viscosity for production (less feasible). Later stages such as SVR 10 production.
Produced by dry prebreaker method Rubber CV60 :
After the product SVR 10 (not yet pressed), put it on the conveyor belt into the dry prebreaker machine, the latex remaining on the conveyor is calculated using 20% HNS solution to calculate the amount of input. about 2kg/ton, evenly watered on the surface of the latex, the conveyor belt rolls this latex into the machine. After leaving the machine, through the cooling system to take samples to determine the viscosity, adjust the viscosity into the standard frame. Usually the viscosity is higher than the standard frame, there are two ways to calibrate. The first way: adjust the temperature of the SVR 10 production part to reduce the viscosity before switching to the 10CV production.The second way: adjust at 10CV production part, adjust the ribbed face of the extruder to close the hole of the back face to make the rubber slow to come out or widen the gap to supply the latex on the conveyor to make the rubber stop. rubber stays longer in the machine, each time the sample is calibrated to re-determine the viscosity until the viscosity enters the standard frame, all measured data must be recorded in the file to have a basis for correction. next times. Once the product is in the standard frame, flatten it and pack it as SVR L, 3L.
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