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(1)Control the temperature and capacity of the roller of the refiner to prevent overheating of the rubber material to produce air bubbles wrapped in the rubber is difficult to remove.
(2) After calendering the rubber cord fabric along the warp line rows of multiple groups of cotton threads, to increase the exhaust effect between the layers of rubber cord fabric. Increase the air bubble stabbing device before rolling the calendered rubber curtain to increase the exhaust effect between the rubber curtains.
(3) Correct the design of extruded outlet plate, make the shape of rubber material is conducive to punching mould, strictly control the construction size and tolerance of rubber semi-finished products, to prevent the product from harbouring air phenomenon.
(4) pre-moulding when there are multiple layers of rubber need to be iterative, rubber on the pressure out of the exhaust valve, to reduce the rubber layer is easy to produce between the nested air phenomenon, or with a bubble needle to puncture the rubber surface layer bubbles.
(5) Steel cord from the dip paste, post film to improve the extrusion of glue, reduce the air content of the steel wire in the glue, reduce the post film easy to produce nested air phenomenon.
(6) Reasonable setting of the mould cavity pressure, to ensure that the vulcanisation should reach the pressure, so that the rubber flow, full of mould cavity.
(7) Strictly according to the specified curing temperature, time control production operations, change the hand-controlled operation for the microcomputer group control production operations.
(2) After calendering the rubber cord fabric along the warp line rows of multiple groups of cotton threads, to increase the exhaust effect between the layers of rubber cord fabric. Increase the air bubble stabbing device before rolling the calendered rubber curtain to increase the exhaust effect between the rubber curtains.
(3) Correct the design of extruded outlet plate, make the shape of rubber material is conducive to punching mould, strictly control the construction size and tolerance of rubber semi-finished products, to prevent the product from harbouring air phenomenon.
(4) pre-moulding when there are multiple layers of rubber need to be iterative, rubber on the pressure out of the exhaust valve, to reduce the rubber layer is easy to produce between the nested air phenomenon, or with a bubble needle to puncture the rubber surface layer bubbles.
(5) Steel cord from the dip paste, post film to improve the extrusion of glue, reduce the air content of the steel wire in the glue, reduce the post film easy to produce nested air phenomenon.
(6) Reasonable setting of the mould cavity pressure, to ensure that the vulcanisation should reach the pressure, so that the rubber flow, full of mould cavity.
(7) Strictly according to the specified curing temperature, time control production operations, change the hand-controlled operation for the microcomputer group control production operations.
