Cushion strip of laminated bridge deck and production process of cushion strip
A production process and technology of gaskets, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of damaged appearance, lack of elasticity, and slurry leakage of bridges, and achieve fast and convenient construction, low water absorption, strong and durable bearing capacity. Effect
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Embodiment 1
[0034] A production process for laminated bridge deck pads, comprising the following steps:
[0035] 1) Banbury mixing: 54% by weight of low-density polyethylene and 43% of filler by weight are dropped into a banbury mixer, mixed for 1 minute at 80°C, and then 0.8% by weight of blowing agent , the crosslinking agent that is 0.6% by weight, the lubricant that is 0.7% by weight and the activator that is 0.9% by weight are put into internal mixer, mix 2 minutes at 120 ℃;
[0036] 2) Open kneading: put the mixture after step 1) into an open kneader, knead at 80° C. for 5 minutes, and knead evenly to produce long thin slices;
[0037] 3) Cutting and slicing: the long thin slices after step 2) are cut into individual thin slices through the preset length and width dimensions of the cold water type sheet discharge machine, and then the single thin slices are stacked according to requirements to form a suitable thickness Block raw rubber, then cool down and set the shape, then weigh ...
Embodiment 2
[0049] A production process for laminated bridge deck pads, comprising the following steps:
[0050] 1) Internal mixing: 70% by weight of low-density polyethylene and 24% by weight of fillers are put into the internal mixer, mixed for 3 minutes at 100°C, and then 1.5% by weight of blowing agent is added , the crosslinking agent that is 1% by weight, the lubricant that is 1.5% by weight and the active agent that is 2% by weight, kneading at 130 ℃ for 4 minutes;
[0051] 2) Open kneading: put the mixture after step 1) into an open kneader, knead at 90° C. for 10 minutes, and knead evenly to produce long thin slices;
[0052] 3) Cutting and slicing: the long thin slices after step 2) are cut into individual thin slices through the preset length and width dimensions of the cold water type sheet discharge machine, and then the single thin slices are stacked according to requirements to form a suitable thickness Block raw rubber, then cool down and set the shape, then weigh the blo...
Embodiment 3
[0064] A production process for laminated bridge deck pads, comprising the following steps:
[0065] 1) Internal mixing: 66% by weight of low-density polyethylene and 30% by weight of filler are put into the internal mixer, mixed for 2 minutes at 90°C, and then 1.2% by weight of blowing agent is added , the crosslinking agent that is 0.8% by weight, the lubricant that is 0.8% by weight and the active agent that is 1.2% by weight, kneading at 120 ℃ for 3 minutes;
[0066] 2) Open kneading: put the mixture after step 1) into an open kneader, knead at 85° C. for 7 minutes, and knead evenly to produce long thin slices;
[0067] 3) Cutting and slicing: the long thin slices after step 2) are cut into individual thin slices through the preset length and width dimensions of the cold water type sheet discharge machine, and then the single thin slices are stacked according to requirements to form a suitable thickness Block raw rubber, then cool down and set the shape, then weigh the bl...
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