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Press roller surface gas shielded surfacing process based on modified Fe-based graphene composite solder

A gas shielded and hybrid welding technology, applied in metal processing equipment, welding/cutting medium/material, welding medium, etc., can solve the problems of high manufacturing cost, difficulty in realizing large-scale mass production, complicated and complicated preparation process, etc. To achieve the effect of being beneficial to wide application, low cost and simple preparation process

Active Publication Date: 2017-01-25
ANHUI KELISITE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of these materials is cumbersome and complicated, the manufacturing cost remains high, and it is difficult to achieve large-scale mass production, and they are all limited to the application fields with special requirements

Method used

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  • Press roller surface gas shielded surfacing process based on modified Fe-based graphene composite solder
  • Press roller surface gas shielded surfacing process based on modified Fe-based graphene composite solder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The gas-protected overlay welding method for the roller surface of a pressure roller based on metal-based graphene composite solder comprises the following steps:

[0028] a) Carbon arc gouging uses the electric arc generated between the graphite rod or carbon rod electrode of the gouging and the remaining hard surface layer on the roller surface to melt the hard surface layer metal and blow it off with compressed gas to clean the roller surface and planing grooves;

[0029] b) Overlay welding Multi-layer primer solder is overlayed in the groove of the pressure roller surface to achieve a good combination with the surface of the pressure roller;

[0030] c) Overlay welding of hard surface layer Weld hard surface layer solder on the above-mentioned primer layer;

[0031] d) pattern layer surfacing Weld metal-based graphene composite solder on the above-mentioned hard surface layer, and form a certain pattern until the size of the pressure roller meets the requirements; ...

Embodiment 2

[0045] The gas-protected overlay welding method for the roller surface of a pressure roller based on metal-based graphene composite solder comprises the following steps:

[0046] a) Carbon arc gouging uses the electric arc generated between the graphite rod or carbon rod electrode of the gouging and the remaining hard surface layer on the roller surface to melt the hard surface layer metal and blow it off with compressed gas to clean the roller surface and planing grooves;

[0047] b) Overlay welding Multi-layer primer solder is overlayed in the groove of the pressure roller surface to achieve a good combination with the surface of the pressure roller;

[0048] c) Overlay welding of hard surface layer Weld hard surface layer solder on the above-mentioned primer layer;

[0049] d) pattern layer surfacing Weld metal-based graphene composite solder on the above-mentioned hard surface layer, and form a certain pattern until the size of the pressure roller meets the requirements; ...

Embodiment 3

[0062] The gas-protected overlay welding method for the roller surface of a pressure roller based on metal-based graphene composite solder comprises the following steps:

[0063] a) Carbon arc gouging uses the electric arc generated between the graphite rod or carbon rod electrode of the gouging and the remaining hard surface layer on the roller surface to melt the hard surface layer metal and blow it off with compressed gas to clean the roller surface and planing grooves;

[0064] b) Overlay welding Multi-layer primer solder is overlayed in the groove of the pressure roller surface to achieve a good combination with the surface of the pressure roller;

[0065] c) Overlay welding of hard surface layer Weld hard surface layer solder on the above-mentioned primer layer;

[0066] d) pattern layer surfacing Weld metal-based graphene composite solder on the above-mentioned hard surface layer, and form a certain pattern until the size of the pressure roller meets the requirements; ...

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Abstract

The invention discloses a press roller surface gas shielded surfacing process based on a modified Fe-based graphene composite solder. The method comprises following steps: a), carbon arc air gouging is performed; b), primer surfacing is performed; c), hard face layer surfacing is performed; d), a pattern layer is subjected to surfacing on a hard face layer to modify the Fe-based graphene composite solder through surfacing, and certain patterns are formed until the press roller size meets the requirements; a few-layer graphene enhanced Fe-based composite welding layer is generated on the press roller surface, and few-layer graphene refined grains are uniformly distributed on the surface of the welding layer; the metal-based graphene surfacing composite solder comprises a tubular wrapping material and filler powder filled in the tubular wrapping material; the tubular wrapping material adopts low-carbon steel or low-alloy steel, and the filler powder is a mixture of Fe based graphene powder, ceramic particles, B, Cr, Ni, refractory metal and nanoscale Al2O3 powder.

Description

technical field [0001] The invention belongs to the technical field of surfacing welding for roller presses, and in particular relates to a gas-protected surfacing method for roller surfaces of pressing rollers based on metal-based graphene composite solder. Background technique [0002] Graphene is a new material with unique physicochemical properties. The material is currently one of the thinnest and hardest materials in the world. At the same time, it has excellent electrical properties (the forbidden band width is approximately equal to 0, and the carrier mobility reaches 2×105cm 2 V-1·s-1), excellent mechanical properties (Young's modulus is 1100GPa, fracture strength is 125GPa) and good thermal properties (thermal conductivity is about 5000W·m-1·K-1, thermal expansion coefficient extremely low). Since its discovery, graphene has been widely used to prepare a wide variety of new materials, especially functional composites. [0003] The research on graphene-reinforce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23K9/173B23K35/30
CPCB23K9/048B23K9/173B23K35/3053
Inventor 周文树周继扣郭建平汪锦阳
Owner ANHUI KELISITE NEW MATERIAL CO LTD