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Mould cleaning cake for removing residual aluminum in to-be-repaired mould as well as preparation method and using method of mould cleaning cake

A technology for cleaning molds and molds, which is applied in the field of removal of residual aluminum in the distribution hole, which can solve the problems of increasing the production cost of aluminum profiles, a large amount of waste water and waste, and harsh working environments, so as to avoid alkali fog particles and improve the harsh working environment , cost reduction effect

Active Publication Date: 2014-12-10
湖北豪展铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has three kinds of disadvantages. The one is that a large amount of sodium hydroxide will be consumed every year to react with the metal aluminum in the split hole of the mold to be repaired, resulting in a large amount of waste water and waste residue; the other is that this treatment method uses expensive metal aluminum A large amount of consumption and waste of chemical methods greatly increases the production cost of aluminum profiles; the third is that the mold to be repaired is in the process of boiling and digesting the residual aluminum in the mold with caustic soda solution, surrounded by a large number of pungent and difficult to breathe alkali mist particles. The environment is very bad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 69 kg of sodium chloride, 10 kg of clay, 5 kg of talcum powder, 10 kg of graphite, 5 kg of molybdenum disulfide, and 1 kg of glass fiber powder. The above materials are dried at 200°C for 4 hours and then mixed and crushed to 100 mesh; Put the mixed materials into a mold with a diameter of 90mm, and press 200MPa to form a cylinder with a diameter of 90mm and a height of 200mm; then bake at 300°C for 4 hours, and pack it in a vacuum film after cooling to obtain a clear mold cake.

Embodiment 2

[0023] Take 40 kg of sodium chloride, 27 kg of sodium carbonate, 12 kg of clay, 5 kg of talcum powder, 10 kg of graphite, 5 kg of molybdenum disulfide, and 1 kg of mineral wool fiber powder. The above materials are dried at 200°C for 6 hours and then mixed and crushed. to 200 mesh; take the above-mentioned mixed material and add it to a mold with a diameter of 120mm, and press it under a pressure of 250MPa to form a 120mm diameter and a height of 200mm for the cleaning mold cake of the present invention; packaging, i.e. for use in an alternative process operation;

Embodiment 3

[0025] Take 69 kg of sodium chloride, 10 kg of clay, 5 kg of talcum powder, 15 kg of graphite, and 1 kg of glass fiber powder. The above materials are dried at 200°C for 8 hours and then mixed and crushed to 300 mesh; the above mixed materials are added to In a mold with a diameter of 70mm, press 400MPa pressure to form a 70mm diameter and a height of 350mm ingots of the present invention; then bake at 330°C for 3 hours, and cool to obtain a clear mold cake.

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Abstract

The invention provides a mould cleaning cake for removing residual aluminum in a to-be-repaired mould as well as a preparation method and a using method of the mould cleaning cake. The mould cleaning cake comprises the following raw materials in parts by weight: 5-15 parts of filler, 5-15 parts of a solid lubricant, 40-70 parts of water-soluble materials and 1-5 parts of a reinforcing agent. The preparation method of the mould cleaning cake comprises the following steps: drying and crushing the raw materials respectively; then, pressing and molding after mixing according to a proportion; and finally, roasting to prepare the mould cleaning cake. While being adopted to remove the residual aluminum in the mould, the mould cleaning cake is firstly placed above to-be-removed residual aluminum in the mould and then the mould is heated and pressurized to control the temperature to 450-500 DEG C and the pressure to 1000-1200MPa, so that the residual aluminum is replaced by virtue of the mould cleaning cake; and then, the mould is soaked or cleaned by virtue of hot water, so that the mould cleaning cake left in the mould can be removed. The mould cleaning cake provided by the invention can be adopted to effectively remove the residual aluminum in the mould; moreover, the removed residual aluminum can be recycled, and the mould cleaning cake also can be conveniently removed and recycled.

Description

technical field [0001] The invention belongs to the fields of environmental engineering and material engineering, and specifically relates to a mold cleaning cake for removing residual aluminum in a mold to be repaired and a preparation and use method thereof, and is particularly suitable for removing residual aluminum in a split hole of an aluminum profile pressing mold to be repaired remove. Background technique [0002] Due to the needs of the structure and size of the profile and the need for repair and maintenance of the mold to be repaired, the mold will be replaced regularly or irregularly during the aluminum profile pressing process. Hundreds of grams to several kilograms of residual aluminum often remain in the replaced mold to be repaired. The conventional method is to boil the mold to be repaired in a high-concentration sodium hydroxide solution, and use caustic soda to react with metal aluminum to form sodium metaaluminate to dissolve the metal aluminum. Remove ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02
Inventor 赵斌胡滨
Owner 湖北豪展铝业有限公司
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