Surface passivating device and method for metal casting

A technology for metal castings and passivating agents, applied in chemical instruments and methods, separation methods, metal material coating processes, etc., can solve problems such as affecting the quality of strong oxidants and easily scratching metal castings

Inactive Publication Date: 2021-04-30
阜宁广兴机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a metal casting surface passivation device and its method, which has the advantages of being able to clean up the metal debris in the strong oxidant in time, and solves the problem that the structure of the t...

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  • Surface passivating device and method for metal casting

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see figure 1 , a surface passivation device for metal castings, comprising a passivation pool 1, a supporting plate 2 is fixedly installed on the left side of the passivation pool 1, and a filter box 3 is fixedly installed on the left side of the passivation pool 1 and above the supporting plate 2 A sieve plate 4 is fixedly installed inside the filter box 3, and a water pump 5 is fixedly installed on the top of the supporting plate 2. The water inlet of...

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Abstract

The invention relates to the technical field of passivating devices, and discloses a surface passivating device for a metal casting. The surface passivating device comprises a passivating tank; a support plate is fixedly mounted at the left side of the passivating tank; a filter box is fixedly mounted above the support plate and at the left side of the passivating tank; a sieve plate is fixedly mounted inside the filter box; a water pump is fixedly mounted on the top of the support plate; a water inlet of the water pump communicates with a water pumping tube, one end of which penetrates through and extends into the passivating tank; and the water outlet of the water pump communicates with a water injecting tube, one end of which communicates with the filter box. According to the surface passivating device and method for the metal casting disclosed by the invention, the water pump, the water pumping tube, the water injecting tube and the water feeding tube are arranged, and the water pump is started for pumping and feeding a passivating agent in the passivating tank into the filter box through the water pumping tube; the sieve plate blocks impurities in the passivating agent, and the clean passivating agent is fed into the passivating tank, so that a great deal of metal chippings are prevented from being generated in the passivating tank, and the metal casting is not scratched during passivation.

Description

technical field [0001] The invention relates to the technical field of passivation devices, in particular to a metal casting surface passivation device and a method thereof. Background technique [0002] Passivation refers to the process in which metal is oxidized by strong oxidant or electrochemical method to make the surface inactive, that is, passivation. , a kind of active metal or alloy, in which the chemical activity is greatly reduced, and the phenomenon of becoming a noble metal state is also called passivation. [0003] The surface passivation of metal castings is soaking in a strong oxidant to convert the metal surface into a state that is not easy to be oxidized. The traditional metal casting surface passivation device has a relatively simple structure. When in use, debris and dust on the surface of metal castings enter the strong oxidant A metal casting that affects the quality of the strong oxidant and is easy to scratch and subsequently soaks, so a metal casti...

Claims

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Application Information

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IPC IPC(8): C23C22/73C23C22/86B01D29/01B01D53/04
CPCC23C22/73C23C22/86B01D29/01B01D53/0446B01D2253/102
Inventor 陈军辉
Owner 阜宁广兴机械有限公司
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