Circulating device for passivating metal apparatus by means of chromium-free ketone pickling
A metal device, chromium-free keto acid technology, applied in the direction of metal material coating process, etc., can solve the problems of uneven contact area, insufficient passivation effect, low efficiency, etc., to reduce costs, promote passivation effect, improve safety effect
Inactive Publication Date: 2019-01-08
湖北协兴环保科技股份有限公司
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Problems solved by technology
[0003] However, for some existing chromium-free ketonic acid cleaning cycle devices used for passivation of metal devices, the passivation effect for the entire work is not obvious enough, and the efficiency of cleaning with chromium-free ketonic acid is relatively low, and the sprayed The contact area is not uniform, therefore, there is an urgent need for a circulation device for metal device passivation with chromium-free ketone pickling
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[0022] 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.
[0023] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0024] refer to Figure ...
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The invention discloses a circulating device for passivating a metal apparatus by means of chromium-free ketone pickling. The device comprises a liquid collecting box. Supporting blocks are fixed to the outer walls at four corners of the bottom of the liquid collecting box through bolts, and a through hole is formed out of the top of the liquid collecting box; a liquid feeding hopper is fixed to the inner wall of the through hole through a screw, and a filter screen is connected to the outer walls around the bottom of the liquid feeding hopper through threads; side columns are fixed to the outer walls on the two sides of the top of the liquid collecting box through bolts, and electric slide rails are fixed to the outer walls of opposite sides of the two side columns through screws; fixed seats are fixed to the outer walls of the tops of the sides, close to the two side columns, of the liquid collecting box through bolts, and brackets are connected to the outer walls of the tops of thefixed seats through threads, and shaft sleeves are connected to the outer walls of the tops of the two brackets in a sleeving manner. According to the circulating device, the contact area of chromium-free ketone and the metal apparatus can be increased, so that the passivating efficiency and quality are improved, the work efficiency of the circulating device is promoted favorably and the cost is lowered.
Description
technical field [0001] The invention relates to the technical field of circulation devices, in particular to a circulation device for passivating metal devices by chromium-free ketone pickling. Background technique [0002] The electrochemical behavior of the metal caused by the change of the metal surface state makes it have some characteristics of noble metals (low corrosion rate, positive electrode potential). If this change occurs due to the natural interaction between the metal and the medium, it is called chemical passivation or self-passivation. With the development of chemical technology, in order to increase the service life of existing metal appliances and avoid oxidation reactions of some special metal devices, chromium-free keto acid is used to effectively clean and passivate the metal devices. [0003] However, for some existing chromium-free ketonic acid cleaning cycle devices used for passivation of metal devices, the passivation effect for the entire work is...
Claims
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IPC IPC(8): C23C22/76C23C22/86
CPCC23C22/76C23C22/86
Inventor 张辉华裴虎陈立学袁铭张欢
Owner 湖北协兴环保科技股份有限公司