A connection process between a steel pipe joint and a thin-walled aluminum alloy pipe fitting
A technology of steel pipe joints and aluminum alloys, which is applied in the direction of pipes/pipe joints/fittings, non-detachable pipe connections, passing components, etc., can solve the problems of poor sealing, weak bonding, low tensile strength, etc., and achieve good sealing , good sealing performance and high tensile strength
Active Publication Date: 2020-02-18
山西征宇喷灌有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a connection process between steel pipe joints and thin-walled aluminum alloy pipe fittings, and solve the problems of poor sealing, weak bonding, and tensile strength in the bonding process of existing steel pipe joints and aluminum alloy pipe fittings. Technical issues such as low strength
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention will be further described in detail below in conjunction with the examples.
[0016] A connection process between a steel pipe joint and a thin-walled aluminum alloy pipe fitting in this embodiment, which includes the following steps:
[0017] 1) Grinding: use a wire grinding wheel and a file to grind the inner wall of the steel pipe joint to be bonded and the outer wall of the thin-walled aluminum alloy pipe fitting to be bonded in turn to make scratches on the surface and increase its roughness;
[0018] 2) Bonding: apply the adhesive to the inner wall of the polished steel pipe joint to be bonded and the outer wall of the thin-walled aluminum alloy pipe to be bonded, and then insert the to-be-bonded nozzle of the thin-walled aluminum alloy pipe into the The steel pipe joint is to be bonded in the bonding nozzle;
[0019] 3) Pressure deformation treatment: Squeeze the connection of the pipe fittings bonded in step 2) inward through the expansion...
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Abstract
The invention relates to the technical field of pipe fitting connecting, in particular to a connecting process of a steel pipe joint and a thin-wall aluminum alloy pipe fitting. The connecting processmainly solves the technical problems that in the existing bonding process of the steel pipe joint and the aluminum alloy pipe fitting, sealing performance is poor, bonding is not firm, and tensile strength is low. According to the technical scheme, the connecting process of the steel pipe joint and the thin-wall aluminum alloy pipe fitting comprises the following steps of (1) grinding, (2) bonding, (3) pressure deformation treatment and (4) curing treatment. A bonding agent is prepared by following raw materials which comprise, by weight percent, 52% of epoxy resin, 38% of versamid and 10% ofdried quartz powder. The grain size of the dried quartz powder ranges from 260 meshes to 320 meshes, and the dried quartz powder is prepared by drying quartz powder in a drying furnace with the temperature ranging from 190 DEG C to 210 DEG C for 10 min. The connecting process has the advantages of being good in sealing performance, firm in bonding, high in tensile strength and the like.
Description
technical field [0001] The invention belongs to the technical field of connecting pipe fittings, and in particular relates to a connecting process between a steel pipe joint and a thin-walled aluminum alloy pipe fitting. Background technique [0002] When bonding steel pipe joints and aluminum alloy pipe fittings, it is necessary to bond two parts of different materials together. Due to the particularity of the materials, there are disadvantages such as poor sealing, weak bonding, and low tensile strength. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a connection process between steel pipe joints and thin-walled aluminum alloy pipe fittings, and solve the problems of poor sealing, weak bonding, and tensile strength in the bonding process of existing steel pipe joints and aluminum alloy pipe fittings. Technical problems such as low strength. [0004] The present invention is achieved throu...
Claims
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IPC IPC(8): F16L13/007F16L13/10F16L13/14C09J163/00C09J177/00C09J11/04
CPCC09J11/04C09J163/00F16L13/007F16L13/103F16L13/14C08L77/00C08K3/36
Inventor 张七只乔飞庞建刚李拉弟侯玉才逯国强
Owner 山西征宇喷灌有限公司