Method for overlaying glass die by plasma

A technology of glass molds and plasma piles, applied in plasma welding equipment, manufacturing tools, welding equipment, etc., can solve the problems of difficulty in mastering the amount of nickel-based powder, different welding processes, waste of nickel-based powder, etc., to improve welding efficiency and automation High degree of effect with less consumption of nickel-based powder

Active Publication Date: 2010-12-15
CHANGSHU JINGGONG MOLD MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional welding is manual welding, so the welding efficiency is low, each worker's welding process is different, and the quality is difficult to guarantee
The amount of nickel-based powder used in the manual welding process is not easy to control, and expensive nickel-based powder is often wasted
Moreover, manual welding often leaves air holes on the surface of the glass mold, and the powder is easy to fall off after welding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Taking welding cast iron glass molds as an example, the method of plasma surfacing glass molds includes the following steps:

[0021] (1) Place the cast iron glass mold to be welded in an electric furnace for preheating, set the temperature of the electric furnace to 400-550°C, and heat the glass mold to 400-450°C;

[0022] (2) Take out the preheated glass mold, use an iron brush to clean the welding part of the mold, place it on the workpiece table, and prepare for welding;

[0023] (3) Perform the first pass of welding: set the current of the plasma surfacing welding machine to 120A, the powder feeding volume to 20 grams, the central air pressure to 80 liters / hour, the powder feeding air pressure to 60 liters / hour, and the protective air pressure Set to 800 liters / hour; set the position of the welding torch of the plasma surfacing welding machine, keep the distance between the welding torch and the glass mold at 8mm, and the linear speed of the welding torch to weld t...

Embodiment 2

[0028] Taking welding cast iron glass molds as an example, the method of plasma surfacing glass molds includes the following steps:

[0029] (1) Place the glass mold to be welded in an electric furnace for preheating, set the temperature of the electric furnace to 550-700°C, and heat the glass mold to 450-650°C;

[0030] (2) Take out the preheated glass mold, use an iron brush to clean the welding part of the mold, place it on the workpiece table, and prepare for welding;

[0031] (3) Perform the first pass of welding: set the current of the plasma surfacing welding machine to 130A, the powder feeding volume to 15 grams, the central air pressure to 90 liters / hour, the powder feeding air pressure to 80 liters / hour, and the protective air pressure Set it to 1000 liters / hour; set the position of the welding torch of the plasma surfacing welding machine, keep the distance between the welding torch and the glass mold at 6mm, and the linear speed of the welding torch to weld the gla...

Embodiment 3

[0036] Taking welding copper glass molds as an example, the method of plasma surfacing glass molds includes the following steps:

[0037] (1) Place the cast iron glass mold to be welded in an electric furnace for preheating, set the temperature of the electric furnace to 700-750°C, and heat the glass mold to 650-750°C;

[0038] (2) Take out the preheated glass mold, use an iron brush to clean the welding part of the mold, place it on the workpiece table, and prepare for welding;

[0039] (3) Perform the first pass of welding: set the current of the plasma surfacing welding machine to 135A, the powder feeding volume to 20 grams, the central air pressure to 100 liters / hour, the powder feeding air pressure to 40 liters / hour, and the protective air pressure Set it to 600 liters / hour; set the position of the welding torch of the plasma surfacing welding machine, keep the distance between the welding torch and the glass mold at 9mm, and the linear speed of the welding torch to weld ...

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PUM

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Abstract

The invention discloses a method for overlaying a glass die by plasma. The method comprises the following steps of: (1) reheating; (2) prefabricating a glass die for overlaying; (3) setting an overlaying parameter; (4) arranging the position of an overlaying gun and overlaying; (5) insulating heat; and (6) heating the glass die and naturally cooling. The overlaying efficiency of the glass die is improved, and nickel-base powder overlaid to the glass die is not easy to fall off, thus the utilization ratio of the nickel-base powder is higher. The glass die overlaid by the method has better uniformity and has no pores on the surface. In the overlaying process, the invention solves the problem that the glass die is extremely easy to have an oxidation layer, is beneficial to improving the oxidation resistance and the wear resistance of the glass die and guarantees the quality stability of the glass die.

Description

technical field [0001] The invention relates to a method for welding glass molds, in particular to a method for welding glass molds using plasma surfacing technology. Background technique [0002] The formation of high-quality glass products has a lot to do with the action of hot glass and molds. Therefore, in the glass mold manufacturing industry, the choice of mold materials is very important. The dominance of cast iron as a material for making glass forming molds has not changed, and the mechanical strength, wear resistance, and oxidation resistance of glass molds have always attracted attention. [0003] For the glass mold manufacturing industry, in order to enhance the mechanical strength, wear resistance and oxidation resistance of the glass mold, it is often necessary to use nickel-based powder to weld the glass mold. [0004] The traditional welding is manual welding, so the welding efficiency is low, each worker's welding process is different, and the quality is di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K10/02B23K9/04
Inventor 潘晓明王伟夏雪根
Owner CHANGSHU JINGGONG MOLD MFG
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