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Turbo-charged oil return hose for automobile and its manufacture method
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A technology for turbocharging and oil return hoses, applied in hoses, chemical instruments and methods, pipes, etc., can solve the problem that the bonding process of silicone and fluororubber is not well controlled, and the product performance is difficult to meet the standards required by customers. Problems such as expensive processing costs
Active Publication Date: 2010-02-24
TIANJIN PENGYI GRP CO LTD
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Problems solved by technology
However, for large-diameter oil and gas hoses, most manufacturers currently use fluororubber as the inner layer and silica gel as the outer layer. Not only is the processing cost expensive, but the bonding process of silica gel and fluororubber is not easy to control during processing. Its product performance is difficult to meet the standards required by customers
Method used
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Embodiment 1
[0014] produce a figure 1 The shown structural inner diameter is Φ85 (+2, -2) mm × 3 (+1.5, -0.5) mm × 305 ± 3mm turbocharged oil return hose, the steps are as follows:
[0015] 1) Tube embryo manufacturing process
[0016] Extrude inner rubber tube blank: Extrude neoprene rubber on Φ120 extruder, set the extrusion temperature of neoprene rubber from machine head to screw: 70°C 50°C 50°C 50°C.
[0017] 2) The manufacturing process of neoprene dipped cloth
[0018] The treated dipped cloth and neoprene rubber are synthesized into neoprene dipped cloth through a three-roll calender, and the temperature of the rolls is 70°C, 80°C, and 60°C according to the order of the upper, middle, and lower three rolls.
[0019] 3) The manufacturing process of the dipped cloth layer
[0020] Take the processed dipped cloth with a width of 50-60mm, cut off a bevel at one end of the cloth, the bevel angle is 10-60 degrees, and then start from this end at the end of the mandrel. Winding, the ...
Embodiment 2
[0032] Produce a turbocharged oil return hose with a structural inner diameter of Φ85 (+2, -2) mm × 3 (+1.5, -0.5) mm × 305 ± 3 mm as shown in Figure 2, and the steps are shown in Example 1 , the difference is the manufacturing process of the dipped cloth sandwich layer.
[0033] When cutting the dipped cloth, cut the neoprene dipped cloth with a 45° angle mandrel width and narrow, and wrap the product in a whole cloth wrapping manner.
[0034] The following table is the test of the rubber hose according to the requirements of the Italian IVECO standard, and the conclusions are as follows:
[0035] serial number
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Abstract
The invention relates to an automobile turbocharging circuit hose and a method for manufacturing the same. The method comprises the following steps: cutting a treated impregnated fabric into cloth strips the widths of which are between 50 and 60mm, cutting out an oblique angle from one end of the cloth strip, and then using the end as a starting point to start enwinding the cloth strips on the endpart of a core rod, wherein the cloth strips with a first layer and a second layer structures are required to be lapped by 1 / 2-1 / 3, when the core rod is enwound fully, the cloth strip with one end cut out is enwound from the other end of the core rod, and the middle parts of the cloth strips are required to be lapped by 1 / 10-1 / 8. Air bubbles at the lapping parts and the rippling parts of the hoseare required to be expelled, and the hose is fully enwound; and the automobile turbocharging circuit hose has five layer structures. The automobile turbocharging circuit hose solves the performance defects of the prior large-aperture turbocharging return oil hose, and meets the performance requirements on blasting, adhesiveness, oil resistance, ageing resistance, pulse strength and so on by usinglow cast materials.
Description
technical field [0001] The invention relates to the technical field of rubber hoses for automobiles, in particular to turbocharged oil return hoses for automobiles and a manufacturing method. Background technique [0002] With the development of the automobile industry and the enhancement of environmental awareness, turbocharged hoses for automobiles require both high-performance standards and low-cost inputs. However, for large-diameter oil and gas hoses, most manufacturers currently use fluororubber as the inner layer and silica gel as the outer layer. Not only is the processing cost expensive, but the bonding process of silica gel and fluororubber is not easy to control during processing. Its product performance is difficult to meet the standards required by customers. The large-diameter wound cloth hose we developed uses neoprene as the basic material, which not only greatly reduces the material cost, but also solves the problems of burst pressure, oil resistance, ozone...
Claims
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Application Information
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