A method for annealing and degreasing large-width double-sided glossy aluminum foil

A large-width, aluminum foil technology, applied in the field of large-width double-sided smooth aluminum foil annealing and degreasing, can solve the problem of insufficient degreasing, and achieve the effects of reducing energy consumption, facilitating overflow, and equalizing negative pressure

Active Publication Date: 2020-08-14
陇西西北铝铝箔有限公司
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Problems solved by technology

[0003] The invention provides a method for annealing and degreasing large-width double-sided aluminum foil to solve the problem of inexhaustible degreasing in the middle of large-diameter and wide aluminum foil in the prior art

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  • A method for annealing and degreasing large-width double-sided glossy aluminum foil
  • A method for annealing and degreasing large-width double-sided glossy aluminum foil
  • A method for annealing and degreasing large-width double-sided glossy aluminum foil

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Embodiment Construction

[0028] The following is further described in detail through specific implementation methods:

[0029] The reference signs in the accompanying drawings of the specification include: an air outlet pipe 10 , a vertical shaft 11 , a buffer plate 12 , and an air outlet hole 13 .

[0030] The parameter of embodiment 1-5 is as shown in table 1 below:

[0031] Table 1 is the parameters of Examples 1-5 of a large-width double-sided aluminum foil annealing and degreasing method

[0032]

[0033] Taking Example 1 as an example below, a method for annealing and degreasing a large-width double-sided glossy aluminum foil is described in detail:

[0034] The annealing of aluminum foil in the annealing furnace mainly includes the following stages: heating stage, oil removal and heat preservation stage, continuous heating stage, performance heat preservation stage, cooling stage, and low temperature heat preservation stage, in which the aluminum foil is degreased in the oil removal and hea...

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Abstract

The invention relates to the technical field of aluminum foil preparation, and specifically discloses a large-width double-sided-glaze aluminum foil annealing and oil-removal method. The large-width double-sided-glaze aluminum foil annealing and oil-removal method comprises the following steps: performing oil-removal treatment while annealing an aluminum foil in an annealing furnace, wherein oil-removal treatment comprises a purging stage and a negative-pressure stage, a positive-pressure state is in the annealing furnace during the purging state, a negative-pressure state is in the annealingfurnace during the negative-pressure stage, and the purging stage and the negative-pressure stage are alternatively performed. According to the technical scheme adopted by the invention, the purging stage and the negative-pressure stage are alternatively performed, oil mist in the annealing furnace is removed under the purging positive-pressure state; meanwhile, during the negative-pressure stage,pressure difference is utilized for applying outward diffusion force to rolling oil attached on the aluminum foil surface, so that greasy dirt on the aluminum foil surface overflows along a gap in the aluminum foil, and the oil-removal effect is relatively good.

Description

technical field [0001] The invention relates to the technical field of aluminum foil preparation, in particular to a method for annealing and degreasing large-width double-sided gloss aluminum foil. Background technique [0002] Due to its excellent characteristics, aluminum foil is widely used in food, beverages, cigarettes, medicines, photographic substrates, household daily necessities and other fields. With the continuous development of society, the food industry has higher and higher quality requirements for aluminum foil products. After the double-sided aluminum foil with a width of more than 800mm is annealed in an ordinary annealing furnace, there is a problem that the middle part of the aluminum foil cannot be completely degreased, and it is difficult to meet the customer's requirements. The air takes away the diffused and volatilized oil and gas in the furnace to achieve the purpose of degreasing, but when using this method for degreasing, due to the thin thickness...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04C23G5/00
CPCC22F1/04C23G5/00
Inventor 杨海波邓盛卫尚平
Owner 陇西西北铝铝箔有限公司
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