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Swing spray pickling process and unit for difficult-to-pickle alloy plates

A spray pickling and alloy plate technology, which is applied in the field of surface pickling treatment, can solve problems such as downtime, production line production is not full, etc., to ensure the effect of pickling, shorten the length, and overcome the effect of poor operating environment on site

Pending Publication Date: 2020-06-16
CISDI ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the production is organized according to the pass-through spray pickling units currently on the market, the production of most production lines will not be full, and in reality, various production lines often have staged shutdowns

Method used

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  • Swing spray pickling process and unit for difficult-to-pickle alloy plates
  • Swing spray pickling process and unit for difficult-to-pickle alloy plates
  • Swing spray pickling process and unit for difficult-to-pickle alloy plates

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Embodiment Construction

[0033] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0034] The refractory alloy plate swing spray pickling process provided in this embodiment is realized in this way: for the alloy plate that needs to be pickl...

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Abstract

The invention discloses a swing spray pickling process and unit for difficult-to-pickle alloy plates, and belongs to the technical field of pickling treatment. The swing spray pickling process comprises the steps that the alloy plates are sequentially subjected to feeding, polishing, pickling, rinsing, blowing, drying, discharging and piling, wherein single-section mixed acid pickling is adopted in a pickling section, and the alloy plates in the pickling section are circularly periodically swung until pickling passivation is completed. Compared with a traditional groove type pickling production process, the swing spray pickling process not only solves the problems of environment pollution and poor field operation environment, but also makes a great improvement in pickling yield, productionefficiency, production cost and the like; and compared with a current mainstream configured continuous passing through type spray pickling process, the swing spray pickling unit not only inherits theadvantages of being good in pickling quality, high in production efficiency and low in production cost, but also effectively reduces the length of the pickling passivation section and saves the investment of engineering equipment.

Description

technical field [0001] The invention belongs to the technical field of surface pickling treatment of difficult-to-pick-wash stainless steel, high-temperature alloys, nickel-based corrosion-resistant alloys and non-ferrous alloy plates, and specifically relates to a swing-spray pickling process and a unit for difficult-to-pick-wash alloy plates. Background technique [0002] Stainless steel and some non-ferrous alloy plates will form an oxide layer with complex composition and structure on the surface after hot rolling and heat treatment. The existence of this oxide layer seriously affects the surface quality and corrosion resistance of the product, so it must be pickled and passivated. , remove the oxide layer, and form a bright silver oxide film mainly composed of chromium and titanium on the surface, so as to achieve the purpose of passivation and anticorrosion. [0003] For the pickling and passivation treatment of stainless steel, superalloys, nickel-based corrosion-resi...

Claims

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Application Information

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IPC IPC(8): C23G3/00C23G1/02
CPCC23G3/00C23G1/02
Inventor 沈继刚余海林霞李轲杨春媚
Owner CISDI ENG CO LTD
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