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Dołączył: 29 Paź 2010
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 Wysłany: Śro 20:47, 29 Gru 2010 Temat postu: moncler 2011 Physical peptizer Z-210 in the applic |
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Physical peptizer Z-210 in the application of all-steel tire compound
Instrument. 1.3 Preparation of test specimens of the sample in two processes: preparation of masterbatches and final mixing preparation. With each of the three vehicles grant masterbatch, the final mixing 4 cars. Masterbatch mixing is completed at the GK400 internal mixer, twin screw extruder through TSR450 the piece; park 8 hours after the GK255 Mixer plus sulfur, accelerator,[link widoczny dla zalogowanych], 0 open mill showings. Two processes masterbatch latex according to the time control, temperature control in accordance with the final latex rubber mixing, mixing masterbatch total time 200 seconds, the final temperature of 1O5 ℃ mixing latex Author: Liaowan Lin (1974 a), male, Ningxia Ping Luo people, Yinchuan, Giti Tire Company Limited Process engineers, college, mainly engaged in the formulation design and process management. 2 Results and discussion 2. I test results in Table 1, Table 2, results showed that compound properties, Z 210 formula for a compound Mooney viscosity slightly larger than the A-type promoter, due to sample preparation is controlled by time, masterbatch in the preparation process, the 210 Z a sample into the plastic specimen temperature than high-A case of additives, the same time,[link widoczny dla zalogowanych], a 210 sample average of Z under the latex temperature lower than the A-type additives sample 3 ~ C ( Table 1), indicating a 210 Z processing rubber to reduce the heat. A compound formula Z 210, 100% modulus, tearing permanent deformation, hardness quite. 300% modulus, tensile strength than the formula-A rubber additives slightly smaller, while the elongation at break was significantly higher than A-type rubber additives, indicating that the compound slightly larger hysteresis loss; general, tires The deformation process of moving no more than 100%, so that Z can be a 210 and A-type additives on mechanical properties of the compound's impact is considerable. 4 Liaowan Lin. A physical peptizer Z 210 in the application of all-steel tire compound Table 2 ≥ City Jan 37: As the amount of tread performance Hei tear strength and abrasion resistance, Table 2 shows, Z of a compound formula 210 both before and after aging additives higher than the A-type tear strength and better wear resistance, which can explain a 210 Z with the lubrication, so that the dispersion of filler in the rubber compound more uniform density rubber increased and improved rubber extrusion and flow properties. Comparing the two results of carbon black dispersion, Z 210 compound formulations of a carbon black dispersion rating better than A-type additives, combined with a 210 Formula Z compound excellent tear and abrasion resistance can explain a 210 Z plus in improving the dispersion of fillers in rubber compound additive is better than the A type. Z 210 and A-type of a sulfur additive variometer data, z 210 and a maximum torque of A-type additives considerable, and the curing period of no change in the flat; Z a 210 T10,[link widoczny dla zalogowanych],,, slightly more than A-type additives short, by calculating, curing the same index, indicating a 210 pairs of Z vulcanized rubber have a certain role in promoting. 3 Conclusion The experimental data analysis, the following conclusions can be: (1) Z a 210 rubber mixing can be reduced when the heat, can achieve short mixing temperature, saving energy; (2) the case of small deformation Next, Z and A with a 210 the same physical and mechanical properties of additives; (3) z a 210 in excellent lubrication in favor of carbon black dispersion in rubber compound on the tread rubber tear, abrasion resistance of the increase to a certain extent; (4) z a 210 compared with A-type additives, curing process has been shortened,[link widoczny dla zalogowanych], but the cure rate is basically the same. Tire machine tire machine in the United States VRP2020 VM / Group developed 12 for forming the four 19-inch tire building machine drum once, it can be completed in 35 seconds forming a green tire. This means that, in forming the same size car radial tire (single carcass, tire sidewall structure of the bread) under the premise, VRP2020 production methods more efficient than a two-drum machine increased 6o%. The device has a precise synchronous operation of the double-drum structure, including the two fit belt and tread drum fitting matrix forming drum and two drums and drum shape, forming equipment can shorten the work car radial tire cycle. Two first fit belt belt fit in the drum, and then fit to tread on the drums fit crowned layer (wound) and the tread of the fitting, the whole process is a continuous, fully automated process. At the same time, all the matrix components forming the first carcass drum combination,[link widoczny dla zalogowanych], when the combination is completed, in order for forming the first carcass drum and the two tread belt and the return line fitting on the drum, matrix components transferred to the second carcass drum shape. In this position, the matrix and the completion of the tread belt assembly components. VRP2020 capsule provides a standard matrix forming drum or drums. He Min compiled from RubberWorld, 2001; 224 (2): 55
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