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Method for filling nickel-based alloy in glass die cavity with cast iron alloy as base matrix

A technology of cast iron alloy and nickel-based alloy, which is applied to the field of filling nickel-based alloys in glass mold cavities, can solve problems such as unseen nickel-based alloys, and achieve the effects of low cost, convenient maintenance and high bonding strength

Inactive Publication Date: 2011-11-23
CHANGSHU JIANHUA MOLD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, cast iron alloy is the method for filling the nickel-based alloy in the glass mold cavity of the parent material matrix mainly contains the following two kinds: the one is to adopt the manual spray welding process to spray-weld the nickel-based alloy in the glass mold cavity, the method Due to the large porosity of the sprayed coating, the bonding strength with the base material is poor, and it is difficult to combine the nickel-based alloy with the base metal matrix well, and it is easy to delaminate or even fall off after being used on the machine; the second is to use argon arc welding and manually add The glass mold cavity is filled with a nickel-based alloy layer. Compared with the aforementioned manual spray welding, this method can improve the bonding effect between the nickel-based alloy and the base metal matrix. However, since argon arc welding is a manual operation, the variable factors are relatively large. Many, the regularity and consistency are difficult to guarantee, especially when the thickness of the nickel-based alloy layer is large, it needs to be welded again and again, the work efficiency is low, and the labor intensity of the workers is high
In addition, because the argon arc welding equipment determines that the geometric shape of the welding material can only be wire or rod (called welding wire in the industry), it is easy to cause technical problems such as uneven welding layer after welding
[0005] The applicant has done extensive literature search, but it is not found that it is more preferable to fill the nickel-based alloy in the glass mold cavity of the base metal matrix with the cast iron alloy The technical inspiration of the method, the more preferred method referred to here refers to methods other than the aforementioned manual spray welding process and argon arc welding process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take a glass mold with a maximum diameter of 25 ± 0.05 mm and a height of 30 ± 0.05 mm as an example.

[0025] A) cavity pre-processing, preferably but not limited to select the model VT160AN / 2P vertical machining center produced and sold by China Ningxia Little Giant Co., Ltd. to cast the cast iron alloy obtained by the previous process as the base material matrix. The cavity is milled, and the surface cortex in the cavity is milled. During the milling process, a welding position (welding position or welding position) with a width of 2 mm is expanded outward around the cavity, and the depth is 3 mm. The maximum diameter of the cavity becomes 29mm, and the height is 34mm. All the sharp corners of the groove and the cavity adopt circular arc transitions to obtain the workpiece to be preheated;

[0026] B) preheating, place (send) the workpiece to be preheated obtained by step A) into a heating furnace for preheating, the preheating temperature is 450°C, and the tim...

Embodiment 2

[0033] Take a glass mold with a maximum diameter of 20 ± 0.05 mm and a height of 27 ± 0.05 mm as an example.

[0034] A) cavity pre-processing, preferably but not limited to select the model VT160AN / 2P vertical machining center produced and sold by China Ningxia Little Giant Co., Ltd. to cast the cast iron alloy obtained by the previous process as the base material matrix. The cavity is milled, and the surface cortex in the cavity is milled. During the milling process, a welding position (welding position or welding position) of 6 mm is expanded outward around the cavity, and the depth is 3 mm, so that the cavity The maximum diameter becomes 32mm, the height is 33mm, and all the sharp corners of the groove and the cavity adopt circular arc transition to obtain the workpiece to be preheated;

[0035] B) preheating, place (send) the workpiece to be preheated obtained by step A) into a heating furnace for preheating, the preheating temperature is 500 ° C, the time is 45 min...

Embodiment 3

[0042] Take a glass mold with a maximum diameter of 27 ± 0.05 mm and a height of 15 ± 0.05 mm as an example.

[0043] A) cavity pre-processing, preferably but not limited to select the model VT160AN / 2P vertical machining center produced and sold by China Ningxia Little Giant Co., Ltd. to cast the cast iron alloy obtained by the previous process as the base material matrix. The cavity is milled, and the surface cortex in the cavity is milled. During the milling process, a 10mm welding position (welding position or welding position) is expanded outward around the cavity, and the depth is 5mm, so that the cavity The maximum diameter becomes 47mm, the height is 35mm, and all the sharp corners of the groove and the cavity adopt circular arc transition to obtain the workpiece to be preheated;

[0044] B) preheating, place (send) the workpiece to be preheated obtained by step A) into a heating furnace for preheating, the preheating temperature is 550°C, and the time, that is, t...

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Abstract

The invention discloses a method for filling a nickel-based alloy in a glass die cavity with a cast iron alloy as a base matrix, belonging to the technical field of glass dies and comprising the following steps of die cavity pre-processing, preheating, treating before welding, welding, annealing and finish processing. The invention has the advantages that the cast iron alloy is taken as the base matrix of the glass die, thus the method has low cost, abundant raw materials, moderate heat conductivity, convenience for maintenance of the die and no limitation from the produced glass products; a plasma welder is adopted; a plasma arc is used as a heat source, the temperature is high and the heat is centralized, and a micro molten pool is formed on the surface of a workpiece, so that a welding layer is metallurgically bonded with a matrix, the combined strength of the welding layer is high and the welded welding layer is not easy to fall off; by using the plasma welder to operate, the automatic streamline operation can be formed, the requirement for industrial production enlargement is met, welding powder is saved, the productivity is improved and the operation strength of workers is reduced; in addition, the service life of the die can be prolonged and the requirement for high machine speed is met.

Description

technical field [0001] The invention belongs to the technical field of glass mold processing, and in particular relates to a method for filling a nickel-based alloy in a cavity of a glass mold with a cast iron alloy as a parent material matrix. Background technique [0002] Because nickel base has good corrosion resistance, oxidation resistance and outstanding thermal fatigue resistance, spraying nickel base alloy powder into the cavity of the glass mold to form a hard nickel base alloy layer can undoubtedly extend the life of the glass. The service life of the mold. [0003] China Invention Patent Authorization Announcement No. CN101549946B recommends a method of filling the cavity of a glass mold with a silicon-copper alloy as the base material matrix and filling the cavity with a nickel-based alloy. The glass mold obtained by this patent scheme can fully exert the unparalleled heat dissipation of the copper alloy material , while effectively improving the speed of the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23K10/02
Inventor 马建华晏庆宝朱伟国马军英夏建刚方朝辉
Owner CHANGSHU JIANHUA MOLD TECH
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