Fuel pipe and preparation method thereof
A fuel pipe and pipe blank technology, which is applied in hoses, pipes, mechanical equipment, etc., can solve the problems of poor fuel penetration resistance, strong rigidity, and hard pipe body, and achieve improved fuel permeability, ultra-low fuel penetration, Good barrier effect
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[0035] Example 1
[0036] A fuel pipe with THV fluoroplastic material, from the inside to the outside: NBR nitrile rubber layer 1, THV fluoroplastic material layer 2, NBR nitrile rubber layer 3, aramid fiber layer 4, CSM chlorosulfonated poly Vinyl rubber layer 5.
[0037] The preparation method of the fuel pipe includes the following steps:
[0038] (1) Extrude NBR nitrile rubber into inner rubber by cold feed extruder;
[0039] (2) The THV fluoroplastic material is extruded and covered by a special plastic extruder on the outside of the NBR nitrile rubber inner rubber layer, and then the NBR nitrile rubber is extruded and covered on the THV fluoroplastic layer by the middle rubber extruder. On the outside, the aramid fiber thread is woven on the knitting machine, and finally the CSM chlorosulfonated polyethylene rubber is extruded and coated on the aramid fiber thread through the outer rubber extruder to form a tube blank;
[0040] (3) Put the tube blank on the special mold core, an...
Example Embodiment
[0041] Example 2
[0042] A fuel pipe with THV fluoroplastic material. The fuel pipe is composed of a 1.5mm-thick NBR nitrile rubber layer 1, a 0.1mm-thick THV fluoroplastic material layer 2, and a 1mm-thick second layer from the inside to the outside. NBR nitrile rubber layer 3, 0.6mm thick aramid fiber layer 4, 1.4mm thick CSM chlorosulfonated polyethylene rubber layer 5.
[0043] The preparation method of the fuel pipe includes the following steps:
[0044] (1) Extrude NBR nitrile rubber into inner rubber by cold feed extruder;
[0045] (2) The THV fluoroplastic material is extruded and covered by a special plastic extruder on the outside of the NBR nitrile rubber inner rubber layer, and then the NBR nitrile rubber is extruded and covered on the THV fluoroplastic layer by the middle rubber extruder. On the outside, the aramid fiber thread is woven on the knitting machine, and finally the CSM chlorosulfonated polyethylene rubber is extruded and coated on the aramid fiber thread thr...
Example Embodiment
[0047] Example 3
[0048] A fuel pipe with THV fluoroplastic material. From the inside to the outside, the fuel pipe has a 1.2mm thick first NBR nitrile rubber layer 1, a 0.16mm thick THV fluoroplastic material layer 2, a 0.4mm thick second Two NBR nitrile rubber layer 3, 0.4mm thick aramid fiber layer 4, 1.4mm thick CSM chlorosulfonated polyethylene rubber layer 5.
[0049] The preparation method of the fuel pipe includes the following steps:
[0050] (1) Extrude NBR nitrile rubber into inner rubber by cold feed extruder;
[0051] (2) The THV fluoroplastic material is extruded and covered by a special plastic extruder on the outside of the NBR nitrile rubber inner rubber layer, and then the NBR nitrile rubber is extruded and covered on the THV fluoroplastic layer by the middle rubber extruder. On the outside, the aramid fiber thread is woven on the knitting machine, and finally the CSM chlorosulfonated polyethylene rubber is extruded and coated on the aramid fiber thread through the...
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