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A kind of galvanized plastic-sprayed malleable steel pipe fitting and its preparation method

A technology of spraying plastic malleable steel pipe and zinc malleable steel pipe, which is applied in the direction of pipes/pipe joints/pipes, pipes, branch pipelines, etc., can solve the problem that the rust prevention effect of galvanized malleable steel pipe fittings is not very good, and the service life of galvanized malleable steel pipe fittings is affected. , increase the consumption of protective paint materials, etc., to achieve the effect of improving outdoor ultraviolet radiation resistance and rust resistance, good acid and alkali resistance, broadening the scope of use and environmental adaptability

Active Publication Date: 2017-05-17
JINAN MEIDE CASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the surface treatment of malleable steel pipe fittings mostly adopts galvanizing technology, but galvanized malleable steel pipe fittings cannot withstand corrosion in acidic and alkaline environments. , affecting the aesthetics of the construction, it is necessary to spray protective paint on the entire pipeline connected to the galvanized malleable steel pipe fittings to unify the color of the pipeline, which increases the consumption of protective paint materials. location, ultraviolet radiation affects the service life of galvanized steel pipe fittings, and the antirust effect of galvanized steel pipe fittings is not very good
Therefore, how to overcome the defect that galvanized malleable steel pipe fittings cannot withstand corrosion in acidic and alkaline environments, realize that the surface color of galvanized malleable steel pipe fittings is consistent with the color of other pipelines and their connectors used in conjunction with it, and improve the resistance of galvanized malleable steel pipe fittings to outdoor ultraviolet rays Radiation effect and anti-rust effect, prolonging the service life of galvanized malleable steel pipe fittings and their supporting installation pipelines is a technical problem that needs to be solved

Method used

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  • A kind of galvanized plastic-sprayed malleable steel pipe fitting and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0023] 1. If figure 1 As shown, a galvanized plastic-sprayed malleable steel pipe fitting includes a malleable steel pipe fitting base, which is characterized in that: the surface of the malleable steel pipe fitting base has a galvanized layer and a plastic-sprayed layer in turn, the galvanized layer is the inner layer, and the plastic-sprayed layer It is the outer layer; the thickness of the galvanized layer is 60 μm; the thickness of the sprayed plastic layer is 100 um; the adhesion is ≤ grade 1; the impact resistance is ≥ 70 kg·cm; the sprayed plastic layer is an epoxy resin layer.

[0024] A method for preparing galvanized plastic-sprayed malleable steel pipe fittings, characterized in that it comprises the following steps:

[0025] A. Steps of shot blasting of malleable steel pipe fitting substrate 1: the shot blasting time of malleable steel pipe fitting substrate 1 is 30 minutes, so that the surface of malleable steel pipe fitting substrate 1 reaches the national standa...

Embodiment 2

[0041] Such as figure 1 As shown, a galvanized plastic-sprayed malleable steel pipe fitting includes a malleable steel pipe fitting base, which is characterized in that: the surface of the malleable steel pipe fitting base has a galvanized layer and a plastic-sprayed layer in turn, the galvanized layer is the inner layer, and the plastic-sprayed layer It is the outer layer; the thickness of the galvanized layer is 80 μm; the thickness of the sprayed plastic layer is 130 um; the adhesion is ≤ grade 1; the impact resistance is ≥ 70 kg·cm, and the sprayed plastic layer is a pure polyester layer.

[0042] A method for preparing galvanized plastic-sprayed malleable steel pipe fittings, characterized in that it comprises the following steps:

[0043] A. Steps of shot blasting of malleable steel pipe fitting substrate 1: the shot blasting time of malleable steel pipe fitting substrate 1 is 40 minutes, so that the surface of malleable steel pipe fitting substrate 1 reaches the nationa...

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Abstract

The invention discloses a galvanized plastic spraying malleable cast iron pipe fitting and a preparing method thereof. The galvanized plastic spraying malleable cast iron pipe fitting comprises a malleable cast iron pipe fitting body, and a galvanized layer and a plastic spraying layer are arranged on the surface of the malleable cast iron pipe fitting body in sequence. The galvanized layer is an inner layer, and the plastic spraying layer is an outer layer. The thickness of the galvanized layer is 60-80 microns, the thickness of the plastic spraying layer is 100-130 microns, the adhesive force is smaller than or equal to the level1, and the impact is larger than or equal to 70 kg.cm. According to the galvanized plastic spraying malleable cast iron pipe fitting, the problem that galvanized malleable cast iron pipe fittings cannot resist acid and alkaline environment corrosion is solved, the problem that the color of the surfaces of the traditional galvanized malleable cast iron pipe fittings is not matched with that of other pipelines and connecting pieces used in cooperation with the galvanized malleable cast iron pipe fittings is also solved, meanwhile, pure polyester powder is resistant to ultraviolet radiation, the effect of resisting outdoor ultraviolet radiation and the effect of resisting rust of the galvanized plastic spraying malleable cast iron pipe fitting are improved, and the service life of the galvanized plastic spraying malleable cast iron pipe fitting and the service life of a pipeline installed in cooperation with the galvanized plastic spraying malleable cast iron pipe fitting are prolonged.

Description

technical field [0001] The invention belongs to a pipeline connector and a preparation method thereof, in particular to a galvanized plastic-sprayed malleable steel pipe fitting and a preparation method thereof. Background technique [0002] At present, the surface treatment of malleable steel pipe fittings mostly adopts galvanizing technology, but galvanized malleable steel pipe fittings cannot withstand corrosion in acidic and alkaline environments. , affecting the aesthetics of the construction, it is necessary to spray protective paint on the entire pipeline connected to the galvanized malleable steel pipe fittings to unify the color of the pipeline, which increases the consumption of protective paint materials. location, ultraviolet radiation affects the service life of galvanized malleable steel pipe fittings, and the antirust effect of galvanized malleable steel pipe fittings is not very good. Therefore, how to overcome the defect that galvanized malleable steel pipe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L41/02F16L58/08F16L58/10C23C18/31B05D1/06
CPCB05D1/06C23C18/31F16L41/021F16L58/08F16L58/1072
Inventor 张明远任艳青彭建华
Owner JINAN MEIDE CASTING CO LTD
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