Multilayer-metal-spacer elastic rubber element and manufacturing method thereof
A multi-layer metal and elastic element technology, applied in the field of rubber products, can solve the problems of collapse of metal separators, insufficient flow, inconsistent design and structure, etc., and achieve the effect of improving service life, reducing residual stress and sufficient operating time.
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Embodiment 1
[0036] In this embodiment, a multi-layer spherical metal spacer rubber elastic element is prepared. The product is vulcanized into a whole through 8 layers of spherical metal spacers, metal upper joints, metal lower joints and corresponding rubber layers. Among them, the metal spacer and the rubber layer are only 1.5mm thick, and the product requires the metal spacers of each layer to be concentric, see figure 1 .
[0037] Epoxidized liquid natural rubber (ELNR) is used, the molecular weight is about 10,000, and the viscosity at room temperature is 4Pa.s.
[0038] Weigh the corresponding materials according to the following formula ratio, and stir them evenly in a stirrer to obtain a uniformly mixed liquid natural rubber compound.
[0039] Epoxidized liquid natural rubber (ELNR) 100 parts, zinc oxide (ZnO) 5 parts, sodium stearate (SA) 1 part, antioxidant octylated diphenylamine (OD) 0.5 parts, 4,4'-dioctyl ODA 0.5 parts, carbon black N220 20 parts, carbon black N550 20 par...
Embodiment 2
[0049] In this embodiment, a multi-layer metal disc rubber stack is prepared, and the product is vulcanized into a whole by 6 layers of metal discs and corresponding rubber layers. Among them, the metal disc and the rubber layer are only 1.5mm thick, and the product requires that the thickness of each rubber layer be uniform. image 3 shown. Using traditional injection or molding, the rubber layer is extremely thin, the flow resistance is large, the metal disc is easy to deform, the rubber thickness distribution of each layer is uneven, and even the metal disc collapses under high pressure, resulting in unqualified products.
[0050] Carbonyl-terminated liquid natural rubber (CTLNR) is used, with a molecular weight of about 20,000 and a viscosity of 5 Pa.s at room temperature.
[0051] The liquid natural rubber compound was obtained by the following formula: 100 parts of carbonyl-terminated liquid natural rubber (CTLNR), 5 parts of zinc oxide (ZnO), 1 part of sodium stearate ...
Embodiment 3
[0057] This embodiment prepares a kind of multi-layer metal cylinder conical plate rubber stack, as attached Figure 5 , 6 shown. The product is vulcanized into a whole through 8 layers of metal cylinder, metal base, metal inner cylinder and corresponding rubber layer. Among them, the thickness of the metal cylinder is 3mm, the thickness of the rubber layer is 5mm, and the length of the product is very high. Using traditional injection or molding, the rubber layer is thin, the flow stroke is long, and the flow resistance is large, which is easy to cause deformation of the metal cylinder. The thickness distribution of each layer of rubber is uneven, and even due to the large flow resistance, the rubber cannot fill the entire space of the metal inner cylinder, resulting in waste products.
[0058] The hydroxyl-terminated liquid natural rubber (HTLNR) is used, the molecular weight is about 20,000, and the viscosity at room temperature is 5Pa.s.
[0059] The liquid natural rubb...
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Abstract
Description
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