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Spraying flow production line for pipe fitting spraying and process method

A technology for production lines and pipe fittings, which is applied to devices, coatings, spray booths, etc. that apply liquid to the surface. problems, to improve the safety factor and service life of water delivery, improve the production capacity of pipe fittings, and reduce the effect of solidification

Inactive Publication Date: 2019-11-01
LIAONING EVER FOUNDRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem existing in the prior art is that the spraying efficiency of the workpiece is not high due to the influence of site layout, process, etc., and the dustiness and temperature of the workpiece cannot be effectively guaranteed during thermal spraying, resulting in that the coating after spraying is easy to fall off and cannot be sprayed. To achieve the effect of erosion resistance and corrosion resistance, quality problems have been reported many times in the process of storage, transportation, installation and use
The thickness of the epoxy coating sprayed manually under the condition of no protective exhaust is uneven, and it is easy to mix impurities and cause pinholes

Method used

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  • Spraying flow production line for pipe fitting spraying and process method
  • Spraying flow production line for pipe fitting spraying and process method
  • Spraying flow production line for pipe fitting spraying and process method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The process of spraying DN300, 1-meter-long double-disk flange pipes with a spraying line, and spraying Aksu-blue epoxy powder is as follows:

[0050] (1) Prepare to spray:

[0051] A. The DN300, 1-meter-long double-disc flange pipe is sandblasted in advance, and some parts need to be repaired;

[0052] B. Select the blue color required by the customer - the non-solid solution powder of the Aksu brand, and add it to the electrostatic spraying equipment 2 to prepare for spraying;

[0053] C. Set the temperature of the pre-baking oven 8 and the powder curing oven 14, and set the parameters of the electrostatic spraying equipment;

[0054] D. Do a good job of covering and protecting relevant parts according to the requirements of the workpiece;

[0055] E. Classify according to the specifications of the sprayed pipe fittings and the color of the sprayed powder, and then stack them in the loading area for epoxy spraying;

[0056] (2) Epoxy spraying:

[0057] Hang the pi...

Embodiment 2

[0065] Use the spraying line to spray the DN400×DN100 full-scale tee pipe fittings, and the process of spraying Jiaming-black epoxy powder is as follows:

[0066] (1) Prepare to spray:

[0067] A. Pre-sandblast the whole tee fittings of DN400×DN100, and some parts need to be repaired;

[0068] B. Select the black color required by the customer - the non-solid solution powder of Jiaming brand, and add it to the electrostatic spraying equipment 2 to prepare for spraying;

[0069] C. Set the temperature of the pre-baking oven 8 and the powder curing oven 14, and set the parameters of the electrostatic spraying equipment;

[0070] D. Do a good job of covering and protecting relevant parts according to the requirements of the workpiece;

[0071] E. Classify according to the specifications of the sprayed pipe fittings and the color of the sprayed powder, and then stack them in the loading area for epoxy spraying;

[0072] (2) Epoxy spraying:

[0073] Hang the pipe fittings to be...

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PUM

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Abstract

The invention relates to a spraying flow production line for pipe fitting spraying and a process method. According to the spraying flow production line, a driving system is connected with a transmission catenary system, the transmission catenary system is connected with a catenary control electric cabinet, the transmission catenary system is connected with a tensioning mechanism, the tensioning mechanism is connected with a tensioning counterweight, the transmission catenary system is connected with a repair cleaning chamber, the transmission catenary system is connected with a pre-baking furnace, the pre-baking furnace is connected with a pre-baking furnace control electric cabinet, the transmission catenary system is connected with a powder spraying chamber, the powder spraying chamber is connected with a powder recycling device, the powder recycling device is connected with a dust remover, the powder spraying chamber is connected with electrostatic spraying equipment, and the transmission catenary system is connected with a powder curing furnace. According to the spraying flow production line and the process method, an optimized mechanical epoxy powder spraying and matched technological method is utilized to replace a traditional straight-through type epoxy powder spraying and curing method, so that the overall quality of nodular cast iron pipe fittings is comprehensively improved, a target of the production capacity of the pipe fittings is comprehensively improved, the water delivery safety coefficient and the service life of the pipeline are improved, and the sprayingflow production line and the method are applied to the technical field of lost-foam nodular cast iron pipe fittings.

Description

technical field [0001] The invention relates to a spraying production line and process method for spraying pipe fittings in the technical field of lost foam ductile iron pipe fittings, in particular to the spraying and curing of epoxy resin inside and outside of various ductile iron pipe fittings below DN600. Background technique [0002] At present, ductile iron pipe fittings used for pressure are in accordance with ISO2531; 2009 international standards and BS EN 14901 international standards. The inner and outer surfaces of ductile iron pipe fittings need to be coated with a certain thickness of epoxy powder resin layer for corrosion protection. The mainstream hot-selling products in the market, and the demand is also rising year by year. All casting pipe fitting factories have been troubled by improving the surface spraying quality and spraying speed of epoxy sprayed parts. This link has obviously become the production bottleneck of every casting pipe fitting factory. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B16/20B05B5/00B05B14/48B05B13/02B05D5/00
CPCB05B16/20B05B16/90B05B14/48B05D5/005B05B5/00Y02P70/10
Inventor 周占虎官振兴王宸宇
Owner LIAONING EVER FOUNDRY CO LTD