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A kind of manufacturing method of pt-au alloy

A pt-au, alloy technology, applied in the field of metal materials, can solve the problems of long production cycle, unstable alloy, difficult production process, etc., and achieve the effects of high yield, simple equipment and high efficiency

Active Publication Date: 2021-02-09
英特派铂业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of gold content, the alloy will appear amplitude modulation decomposition structure, and the alloy becomes unstable
At present, the production process of this product is difficult and the production cycle is long, especially large plates cannot be produced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Melting: Weigh 1980g of 99.95% pure platinum and 20g of 99.95% pure gold, then add platinum and gold together into a zirconia crucible for melting, the melting power is 32kw, and the melting time is 60min to obtain an alloy melt.

[0016] (2) Casting: casting the molten alloy obtained in step (1) into a water-cooled copper mold to obtain an ingot. The casting power is 20kw, and the casting speed is 250g / s.

[0017] (3) Surface treatment: the ingot obtained in step (2) is subjected to surface treatment with a milling machine, and 0.5 mm is milled off each of the upper and lower surfaces.

[0018] (4) Homogenization treatment: put the ingot obtained in step (3) into an annealing furnace for homogenization treatment, the temperature of the homogenization treatment is 1150°C, and the time is 1.5h.

[0019] (5) Hot forging: The ingot obtained in step (4) is hot forged with a 200kg air hammer, the initial forging temperature is 1150°C, the final forging temperature is 95...

Embodiment 2

[0022] (1) Melting: Weigh 1900g of 99.95% pure platinum and 100g of 99.95% pure gold, then add the platinum and gold into a zirconia crucible for melting, the melting power is 28kw, and the melting time is 60min to obtain an alloy melt.

[0023] (2) Casting: casting the molten alloy obtained in step (1) into a water-cooled copper mold to obtain an ingot. The casting power is 20kw, and the casting speed is 240g / s.

[0024] (3) Surface treatment: the ingot obtained in step (2) is subjected to surface treatment with a milling machine, and 0.5 mm is milled off each of the upper and lower surfaces.

[0025] (4) Homogenization treatment: put the ingot obtained in step (3) into an annealing furnace for homogenization treatment, the temperature of the homogenization treatment is 1150°C, and the time is 1.5h.

[0026] (5) Hot forging: The ingot obtained in step (4) is hot forged with a 200kg air hammer, the initial forging temperature is 1150°C, the final forging temperature is 950°C,...

Embodiment 3

[0029] (1) Melting: Weigh 1800g of 99.95% pure platinum and 200g of 99.95% pure gold, then add platinum and gold together into a zirconia crucible for melting, the melting power is 24kw, and the time is 40min to obtain an alloy melt.

[0030] (2) Casting: casting the molten alloy obtained in step (1) into a water-cooled copper mold to obtain an ingot. The casting power is 18kw, and the casting speed is 200g / s.

[0031] (3) Surface treatment: the ingot obtained in step (2) is subjected to surface treatment with a milling machine, and 0.5 mm is milled off each of the upper and lower surfaces.

[0032] (4) Homogenization treatment: put the ingot obtained in step (3) into an annealing furnace for homogenization treatment, the temperature of the homogenization treatment is 1150°C, and the time is 1.5h.

[0033] (5) Hot forging: The ingot obtained in step (4) is hot forged with a 200kg air hammer, the initial forging temperature is 1150°C, the final forging temperature is 950°C, an...

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PUM

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Abstract

The application discloses a method for preparing a Pt-Au alloy, which belongs to the technical field of metal materials. The preparation method is through (1) smelting: weighing Pt and Au, adding Pt and Au to a crucible for smelting to obtain an alloy Melt; (2) Casting: Casting the alloy melt into a mold to obtain an ingot; (3) Surface treatment: Surface treatment of the ingot obtained in step (2) with a milling machine; (4) Homogenization treatment: Put the ingot obtained in step (3) into an annealing furnace for homogenization; (5) hot forging: hot forge the ingot obtained in step (4) with an air hammer, and directly put the ingot into Quenching in water to obtain a semi-finished product; (6) cold rolling: cold rolling the semi-finished product obtained in step (5) with a rolling mill to obtain a finished product. The advantages are as follows: the preparation method has the advantages of simple equipment, high efficiency, high yield and the like.

Description

technical field [0001] The present application relates to the technical field of metal materials, in particular to a method for manufacturing a Pt-Au alloy. Background technique [0002] Pt-Au alloys are currently mainly used to manufacture crucibles, and Pt-Au crucibles are mainly used in the field of material analysis, especially in the field of XRF fluorescence spectroscopy. Pt-Au alloy is a continuous solid solution at high temperature, and single-phase solid solution alloy can be obtained by high temperature solid solution and quenching treatment. However, with the increase of gold content, the alloy will appear AM decomposition structure, and the alloy becomes unstable. At present, the production process of this product is difficult and the production cycle is long, especially large plates cannot be produced. Contents of the invention [0003] The embodiment of the present application provides a method for preparing a Pt-Au alloy with simple equipment and high effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/04C22C1/02C22F1/14
CPCC22C1/02C22C5/04C22F1/14
Inventor 杨志先金英杰李树屏尹俊
Owner 英特派铂业股份有限公司