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Spray welding treatment process of glass mold

A technology for glass molds and processing technology, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve problems such as difficult to control the quality of spray welding, cutting tools, etc., reduce labor intensity, reduce the amount of welding powder used, and optimize the process The effect of the parameter

Inactive Publication Date: 2013-05-29
SUZHOU DONGHAI GLASS MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that most glass mold manufacturers currently use manual spray welding, it is difficult to control the quality of spray welding, and the unavoidable knife gap phenomenon in the follow-up processing of spray welding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Firstly, by mechanical processing, a rectangular groove with a depth of 1mm~1.5mm and a width of 2.5mm~3mm is milled at the seam line that needs spray welding, and a 2mmX45° triangular groove is milled at the head, neck and junction. The surface roughness that requires spray welding is guaranteed to be Ra25~12.5. Then, before spray welding, preheat the pretreated mold to 300 ° C ~ 330 ° C, and then clamp it to the specified fixture, and use a plasma spray welding machine . Implement spray welding. Spray welding alloy powder adopts 21A PTA nickel-based alloy powder produced by WALLcolmonoy Company. The control current is 80A, the spray welding speed is 2.8mm / s, the powder feeding amount S=2~2.5 kg / h, the distance from the nozzle to the workpiece d=12mm, the spray welding torch swing B=3~6 mm, and the ion gas flow rate Q= 0.2~0.3m 3 / min, powder feeding gas flow and protective gas flow are 3-3.5 m 3 / min. Note: Be sure to control the speed of spray welding, and move...

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PUM

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Abstract

The invention discloses a spray welding treatment process of a glass mold. The process comprises the steps of machining pretreatment before spray welding, preheating before the spray welding, spray welding with a plasma spray welder, heat treatment, and further machining. According to the spray welding treatment process of the glass mold, obtaining of a reliable spray welding layer is guaranteed, good economic benefits are available, and further, due to the fact that a traditional milling method used for treatment of a spray welding position is replaced by a grinding method in follow-up machining processes, production efficiency with the grinding method is the same as that with the milling method, while matching surface quality of the mold is greatly improved, the cutter back-off phenomenon is avoided, and the problem of unevenness of the surface of a juncture of stitching surfaces is completely solved.

Description

technical field [0001] The invention relates to the field of glass mold processing, in particular to a glass mold seam line, head neck and wiring spray welding process and subsequent mechanical processing method. Background technique [0002] In the process of forming glass products, glass molds frequently contact molten glass above 1100°C, work at high temperatures for a long time, and produce mechanical impacts and chemical reactions during repeated mold opening and closing. When the cavity has not yet failed, the seam line will be damaged first, resulting in the production of glass products with thick seam line and being scrapped, and the mold will fail prematurely. In view of this situation, in order to make the mold fully used, it is of great significance to strengthen the vulnerable parts of the mold. Cladding a layer of nickel-based alloy powder and metallurgical bonding with the base material on the important positions and vulnerable parts of the mold, such as the n...

Claims

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Application Information

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IPC IPC(8): B23P15/24B23K10/02
Inventor 唐剑锋钱健钱燕
Owner SUZHOU DONGHAI GLASS MOLD