Integral vulcanization nonmetal expansion joint and manufacturing technology thereof
A technology of integral vulcanization and manufacturing process, which is applied in the field of expansion joints, can solve problems such as poor temperature resistance, poor structural strength, and environmental pollution, and achieve the effects of simple structure of expansion joints, strong corrosion resistance, and reasonable process design
Inactive Publication Date: 2016-02-03
江苏彩阳环保科技有限公司
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Problems solved by technology
The existing non-metallic expansion joints are made of silicone rubber glass fiber cloth, which has poor resistance to strong corrosion of chemicals such as sulfide, cyanide, acid, alkali, nitrate and other chemicals in the smoke and dust discharged from the above system, and is easy to Damage, poor sealing, and poor structural strength, easy to twist, poor temperature resistance, so that the service life is short, the removal rate of harmful substances is low, and it will cause environmental pollution
Method used
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[0035] Such as figure 1 As shown, the overall vulcanized non-metallic expansion joint includes fluororubber layer 1, aramid fiber mesh cloth layer 2, fluororubber layer 3, 304 stainless steel wire mesh layer 4, fluororubber layer 5 bonded to each other from the inside to the outside in sequence , Aramid fiber mesh cloth layer 6 and fluorine rubber layer 7.
[0036] In this embodiment, the aramid fiber mesh cloth layer has a two-layer structure with a thickness of 2.2 mm to 2.4 mm, and heat insulation cotton is arranged between any adjacent layers in the non-metallic expansion joint. The high temperature resistance, corrosion resistance, strength and service life of non-metallic expansion joints are also closely related to the manufacturing process of non-metallic expansion joints.
[0037] The manufacturing process of integrally vulcanized non-metallic expansion joints includes the following steps:
[0038] Step 1: Mix fluororubber raw rubber and rubber compounding agent thr...
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Abstract
The invention relates to an integral vulcanization nonmetal expansion joint and a manufacturing technology thereof. The expansion joint comprises a fluororubber layer, an aramid fiber mesh fabric layer, a fluororubber layer, a 304 stainless steel mesh layer, a fluororubber layer, an aramid fiber mesh fabric layer and a fluororubber layer, which are sequentially bonded from the inside to the outside. The technology comprises: (1), mixing raw fluororubber with a rubber compounding agent into a fluororubber body through a rubber mixing mill; (2), adding an organic solvent and a coupling agent into the fluororubber body and agitating into fluororubber latex; (3), coating the surface of gray fabric with the fluororubber latex, and preparing a non-metal expansion joint coarse material; (4), carrying out integral vulcanization treatment; and (5), carrying out finish machining molding on the non-metal expansion joint coarse material subjected to vulcanization treatment. Compared with the prior art, the nonmetal expansion joint has the advantages of being reasonable in technical design, simple in product structure, great in high temperature resistance, strong in corrosion resistance capability, high in strength, convenient to mount and long in service life.
Description
technical field [0001] The invention relates to the technical field of expansion joints, in particular to an integral vulcanized non-metallic expansion joint for power plant chimneys and a manufacturing process for the expansion joint. Background technique [0002] In various circulating fluidized bed boilers, gas turbine waste heat boilers, chemical industry, power generation, cement, papermaking, high-rise buildings and other industries, equipment and equipment, equipment and pipes, pipes and pipes are deformed due to thermal expansion and contraction, usually Non-metallic compensators with anti-corrosion capabilities, that is, non-metallic expansion joints, are used to compensate displacement, absorb vibration, and reduce noise. They are mainly made of fiber fabrics, rubber, and other high-temperature resistant materials to compensate for the vibration of fans and air ducts and pipe deformation. . The existing non-metallic expansion joints are made of silicone rubber gla...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16L51/00F23J13/04
Inventor 仇彬彬仇庆波
Owner 江苏彩阳环保科技有限公司