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Processing technology of high-corrosion-resistance crucible for smelting gold

A processing technology, high corrosion resistance technology, applied in the direction of manufacturing tools, glass forming, glass manufacturing equipment, etc., can solve the problems of lower purity of finished products, mixing of graphite powder, easy oxidation, etc., to enhance stability and improve corrosion resistance. sexual effect

Inactive Publication Date: 2021-06-08
上海震扬光电材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the gold impurities produced by the traditional crucible method are still more, because the crucibles used for smelting gold are generally graphite melting crucibles, but when the high-purity sponge gold is smelted into particles, the corrosion resistance of graphite crucibles is poor. The graphite melting crucible exposed to the air is easy to oxidize, causing graphite powder to be mixed into it, the melting effect is not improved, and the purity of the finished product is reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: A kind of highly corrosion-resistant crucible processing technology for smelting gold, comprising the following steps:

[0019] S1: Outer graphite pot body: Weigh an appropriate amount of natural graphite raw material according to the weight ratio, put the natural graphite raw material into a grinder and grind it into powder, put the graphite powder into a high-temperature furnace to preheat to 155-185°C and After stirring for 30 minutes, add an appropriate amount of binder, continue heating to 175-198°C and stir to make graphite paste, and cool the paste for later use;

[0020] S2: Outer graphite pot body: Fill the paste into a high-temperature mold and pressurize it, control the pressure to rise to 10-11MP and hold the pressure for 3 minutes, then cool the mold to 60-70°C, and release the mold after cooling and shaping. Make the outer graphite pot body;

[0021] S3: Inner silicon oxide glass pot body: mix quartz particles into the silicon oxide powder, ...

Embodiment 2

[0030] Embodiment 2 is the same as the above-mentioned embodiment in terms of materials and processing steps, except that the structures of the two are different.

[0031] A process for processing a highly corrosion-resistant crucible for smelting gold, comprising the following steps:

[0032] S1: Outer graphite pot body: Weigh an appropriate amount of natural graphite raw material according to the weight ratio, put the natural graphite raw material into a grinder and grind it into powder, put the graphite powder into a high-temperature furnace to preheat to 155-185°C and After stirring for 30 minutes, add an appropriate amount of binder, continue heating to 175-198°C and stir to make graphite paste, and cool the paste for later use;

[0033] S2: Outer graphite pot body: Fill the paste into a high-temperature mold and pressurize it, control the pressure to rise to 10-11MP and hold the pressure for 3 minutes, then cool the mold to 60-70°C, and release the mold after cooling and...

Embodiment 3

[0038] Embodiment 3 is the same as the above-mentioned embodiment in terms of materials and processing steps, except that the structures of the two are different.

[0039] A process for processing a highly corrosion-resistant crucible for smelting gold, comprising the following steps:

[0040] S1: Outer graphite pot body: Weigh an appropriate amount of natural graphite raw material according to the weight ratio, put the natural graphite raw material into a grinder and grind it into powder, put the graphite powder into a high-temperature furnace to preheat to 155-185°C and After stirring for 30 minutes, add an appropriate amount of binder, continue heating to 175-198°C and stir to make graphite paste, and cool the paste for later use;

[0041] S2: Outer graphite pot body: Fill the paste into a high-temperature mold and pressurize it, control the pressure to rise to 10-11MP and hold the pressure for 3 minutes, then cool the mold to 60-70°C, and release the mold after cooling and...

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Abstract

The invention discloses a processing technology of a high-corrosion-resistance crucible for smelting gold. The processing technology comprises the following operation steps of: putting graphite powder into a high-temperature furnace, preheating to 155 to 185 DEG C, stirring for 30 minutes, then adding a proper amount of a binder, continuously heating to 175 to 198 DEG C, stirring to prepare graphite paste, filling the paste into a high-temperature mold, pressurizing, cooling, shaping, and then demolding to prepare an outer-layer graphite pot body; mixing quartz particles into silicon oxide powder, putting a mixed material into a pot bottom forming mold, and sintering and forming to form a pot bottom substrate; putting the pot bottom substrate into an inner-layer pot body mold, and continuously adding the silicon oxide powder to prepare an inner-layer silicon oxide glass pot body; putting the inner-layer silicon oxide glass pot body into an electrolyte containing platinum ions, carrying out metal plating, and forming a platinum plating layer on the surface of the inner-layer silicon oxide glass pot body; and welding the outer-layer graphite pot body on the outer side edge of a fixed edge, and welding the inner-layer silicon oxide glass pot body on the inner side edge of the fixed edge.

Description

technical field [0001] The invention relates to the technical field of related gold smelting, in particular to a high corrosion-resistant crucible processing technology for smelting gold. Background technique [0002] Gold smelting products are finished gold. Smelting can be divided into rough refining and refining. Refined and rough refined products are alloys (commonly known as alloyed gold). Most of the real estate gold in my country's gold mines is alloyed gold, which is directly sold to banks. Gold rich ore lumps and various gold concentrates are transported to non-ferrous smelters for processing and refining finished gold (commonly known as content gold). Since the founding of the People's Republic of China 40 years ago, gold smelting and comprehensive recycling have developed rapidly, smelting technology and process equipment levels have been continuously improved, and smelting costs have been decreasing, which has promoted the development of gold production. [00...

Claims

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Application Information

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IPC IPC(8): B28B3/00C03B19/06C25D3/50
CPCB28B3/00C03B19/06C25D3/50
Inventor 杨劼
Owner 上海震扬光电材料科技有限公司