CN204174303U - A kind of chrome-plating bath knot screen - Google Patents

Abstract

The utility model relates to a kind of chrome-plating bath knot screen, comprises chrome-plating bath, ceramic bucket, nickel-plated sheet and anode for chrome-plating plate; The upper end of described chrome-plating bath has two support bars placed side by side, and the two ends of support bar are supported on the two ends of chrome-plating bath respectively, and described ceramic bucket hangs in chrome-plating bath by support bar, all has outward extending back up pad in the both sides of the upper end of ceramic bucket; Be inserted with nickel-plated sheet in described ceramic bucket, between ceramic bucket and chrome-plating bath, be provided with anode for chrome-plating plate; The surrounding of described ceramic bucket has the pore be connected in some and ceramic bucket, and the bore of described pore is between 0.5 μm-2 μm.The utility model has the advantage of: by chrome-plating bath, set up a ceramic bucket, and ceramic bucket has some and allow the pore that minor diameter metal ion passes through, separately in ceramic bucket, carry out ceaselessly electrolysis by direct current, make metallic impurity in chromium plating tank liquor can be fewer and feweri, plating solution purity can be more and more higher, and performance can be become better and better.

Description

A kind of chrome-plating bath knot screen

Technical field

The utility model relates to a kind of electroplanting device, particularly a kind of chrome-plating bath knot screen.

Background technology

In decoration type plating Cu-Ni-Cr system, no matter be plastic cement plating or Metal plating, its coating is all by plating Cu, plate Ni again, finally plate Cr, constantly enter due to product and have minority product to drop at chrome-plating bath, and chromium plating tank liquor has comparatively strong oxidizing property, foreign ion in chrome-plating bath will certainly be caused (as Cu ²⁺, Ni ²⁺, Cl ^-deng) content all increase, thus have a strong impact on the covering power of plating Cr liquid, and very easily cause product burn or turn to be yellow, notably, tank liquor then will scrap process, raises the cost.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of can be good at the chrome-plating bath knot screen of the metallic impurity ion remaval in chrome-plating bath.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of chrome-plating bath knot screen, and its innovative point is: comprise chrome-plating bath, ceramic bucket, nickel-plated sheet and anode for chrome-plating plate;

The upper end of described chrome-plating bath has two support bars placed side by side, and the two ends of support bar are supported on the two ends of chrome-plating bath respectively, and described ceramic bucket hangs in chrome-plating bath by support bar, all has outward extending back up pad in the both sides of the upper end of ceramic bucket;

Be inserted with nickel-plated sheet in described ceramic bucket, between ceramic bucket and chrome-plating bath, be provided with anode for chrome-plating plate;

The surrounding of described ceramic bucket has the pore be connected in some and ceramic bucket, and the bore of described pore is between 0.5 μm-2 μm.

The utility model has the advantage of: by chrome-plating bath, set up a ceramic bucket, and ceramic bucket has some and allow the pore that minor diameter metal ion passes through, separately in ceramic bucket, carry out electrolysis by direct current, metallic impurity ion enters in ceramic bucket by ceramic bunghole gap, part is deposited on nickel-plated sheet, after a few hours, in bucket, metals content impurity can be more and more higher, changed, cleaning nickel-plated sheet, again electrolysis again, so repeatedly, in chromium plating tank liquor, metallic impurity can be fewer and feweri, plating solution purity can be more and more higher, performance can be become better and better, thus reach desirable electroplating effect.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of chrome-plating bath knot screen of the present utility model.

Embodiment

Schematic diagram is as shown in Figure 1 known, and chrome-plating bath knot screen of the present utility model comprises chrome-plating bath 4, ceramic bucket 3, nickel-plated sheet 2 and anode for chrome-plating plate 1.

Have two support bars placed side by side in the upper end of chrome-plating bath 4, the two ends of support bar are supported on the two ends of chrome-plating bath 4 respectively, and ceramic bucket 3 hangs in chrome-plating bath 4 by support bar, all have outward extending back up pad in the both sides of the upper end of ceramic bucket 3.

In ceramic bucket 3, be inserted with nickel-plated sheet 2, between ceramic bucket 3 and chrome-plating bath 4, be provided with anode for chrome-plating plate 1.

Have in the surrounding of ceramic bucket 3 pore be connected in some and ceramic bucket 3, the bore of pore is between 0.5 μm-2 μm.

When carrying out removal of impurities to chrome-plating bath 4, the hole of the pore of ceramic bucket 3 is utilized only to allow minor diameter metal ion, as Cu ²⁺, Ni ²⁺, Cl ^-can pass through Deng all, major diameter ion is as complex acid root (CrO ₄ ^2-), heavy complex acid root (Cr ₂o ₇ ^2-), many complex acids root (Cr ₃o ₁₀ ^2-) then cannot pass through, separately in ceramic bucket 3, inject 10%H ₂sO ₄solution, interpolation nickel-plated sheet 2 makes negative electrode, simultaneously for the anode for chrome-plating plate 1 of chrome-plating bath 4 Inner electrolysis as anode, electrolysis is carried out by direct current, metallic impurity ion enters in ceramic bucket 3 by ceramic bucket 3 hole, part is deposited on nickel-plated sheet 2, and after a few hours, in bucket, metals content impurity can be more and more higher, changed, cleaning nickel-plated sheet 2, then electrolysis again, so repeatedly, in chromium plating tank liquor 4, metallic impurity can be fewer and feweri, plating solution purity can be more and more higher, and performance can be become better and better, thus reach desirable electroplating effect.

More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (1)

1. a chrome-plating bath knot screen, is characterized in that: comprise chrome-plating bath, ceramic bucket, nickel-plated sheet and anode for chrome-plating plate;

The upper end of described chrome-plating bath has two support bars placed side by side, and the two ends of support bar are supported on the two ends of chrome-plating bath respectively, and described ceramic bucket hangs in chrome-plating bath by support bar, all has outward extending back up pad in the both sides of the upper end of ceramic bucket;

Be inserted with nickel-plated sheet in described ceramic bucket, between ceramic bucket and chrome-plating bath, be provided with anode for chrome-plating plate;

The surrounding of described ceramic bucket has the pore be connected in some and ceramic bucket, and the bore of described pore is between 0.5 μm-2 μm.