CN2787686Y

CN2787686Y - Apparatus for dispelling hydrogen by forced high-speed flow of plating solution

Info

Publication number: CN2787686Y
Application number: CN 200520071186
Authority: CN
Inventors: 金德林
Original assignee: JIANGSU HUADA COATINGS CO Ltd
Current assignee: JIANGSU HUADA COATINGS CO Ltd
Priority date: 2005-04-28
Filing date: 2005-04-28
Publication date: 2006-06-14
Anticipated expiration: 2015-04-28

Abstract

The utility model relates to an apparatus for dispelling hydrogen by the forced high-speed flow of plating liquid, and relates to a material surface processing apparatus. The apparatus for dispelling hydrogen is composed of a circulation pump, spraying pipelines, eyelets and nozzles. Both ends of the circulation pump are connected with the spraying pipelines. The spraying pipeline of one end is inserted in a circulation tank; the spraying pipeline of the other end enters a plating tank. The spraying pipelines are positioned at lower parts in tank bodies. The spraying pipelines which enter the plating tank are provided with the eyelets. The eyelets are provided with the nozzles. The apparatus for dispelling hydrogen has simple structure. The continuous high-speed circulatory plating liquid is sprayed to cathode regions through the eyelets of the spraying pipelines in order to dispel hydrogen bubbles in the cathode regions under the condition of the forced high-speed circulation flow of the plating liquid. Work piece of the utility model does not leak hydrogen when the utility model is plated with zinc, the production of Na2CO3 is lowered, and the utility model does not affect the service life of the plating liquid and does not affect the quality of coatings; the utility model can also carry out continuous production when continuous plating area reaches twenty-two hundred millions dm< 2 > in production, ensures safe production simultaneously and can be used in the production lines of the surface processing of various types of rolling boards.

Description

Force the plating bath flow at high speed to drive hydrogen production device

Technical field

This utility model relates to a kind of material surface treatment unit, and a kind of specifically pressure plating bath flow at high speed is driven hydrogen production device.

Background technology

At present, in the steel roll bending surface treatment course of processing, all need electroplating process.Be electroplate with coating bath, power supply, anode, negative electrode, electroplate liquid, outside under the galvanic action, anode, negative electrode, electroplate liquid have just constituted electric field in the plating tank, and plating is exactly that metal ion transport in the electrolyte solution is to cathode surface generation reduction reaction and form the process of cenotype.Briefly, electroplate the galvanic deposit that just is meant when electrolyte solution is the aqueous solution.

The charged particle that moves in electrode and the outer conductor that direct supply is connected in the two poles of the earth during energising is a unbound electron, and the charged particle that electric current wherein moves during by two interpolar plating baths is an ion.In electroplating process, because electric current passes through in entire circuit, will on the interface of electrode and plating bath chemical transformation take place inevitably---electrode reaction, and reduction reaction always takes place at negative electrode, the oxidizing reaction generation is always arranged on anode.During cathodic reduction reaction, constantly separate out hydrogen, if hydrogen is trapped on the cathode surface, along with the galvanic deposit of zinc layer penetrates among the lattice of zinc layer, cause workpiece to ooze hydrogen, the hydrogen of constantly separating out simultaneously can be covered with liquid level in continuous flow procedure, roll bending produces some sparks a little and promptly can cause hydrogen explosion by conductor.Traditional pneumatic blending hydrogen removing method, constantly squeeze into coating bath with air compressor with pressurized air exactly from the groove bottom among, stir plating bath and drive bubble hydrogen.This method needs continuous, a large amount of air could constantly drive bubble hydrogen.Because composition has NaOH in the alkaline electro plating bath, and CO is arranged in the air ₂, CO ₂Run into NaOH and generate Na rapidly ₂CO ₃, not only can have a strong impact on plating bath work-ing life, reduce quality of coating, and can't continuous production, about 2,000,000 square decimeters, will stop usually and handle Na ₂CO ₃Could continuous production.

Summary of the invention

This utility model is to be solved to be exactly that present steel roll bending is in electroplating process, negative electrode is always constantly separated out hydrogen, not only cause workpiece to ooze hydrogen, also easily cause hydrogen explosion, and the existing hydrogen production device that drives generally all can have a strong impact on plating bath work-ing life, reduce quality of coating, and can't the quantity-produced problem, provide a kind of workpiece that do not produce to ooze hydrogen, do not influence plating bath work-ing life, but quality of coating is not had influence and quantity-produced forces the plating bath flow at high speed to drive hydrogen production device.

Solve the technical scheme that its technical problem adopts: this drives hydrogen production device and is made up of recycle pump, spray piping, eyelet, nozzle, the recycle pump two ends are connected with spray piping, one end spray piping inserts in the circulation groove, the other end spray piping enters plating tank, spray piping all is positioned at below, cell body inside, enter cloth perforation on the spray piping of plating tank, nozzle is installed on the eyelet.

Described eye diameter is 5-10mm.

Beneficial effect: it is simple in structure that this drives hydrogen production device, effect is obvious, because the spray piping that enters plating tank is fixed on the below of plating tank inside, under the coating bath liquid level, be close to the position, cathodic area during installation, liquid level is not exposed at the nozzle position of jet pipe, make the plating bath of injection be no more than liquid level, under the situation of forcing plating bath to circulate at a high speed, constantly high speed round-robin plating bath is ejected into the cathodic area by the jet pipe eyelet, to drive the bubble hydrogen at negative electrode position.This drives hydrogen production device can not ooze hydrogen by workpiece when not only zinc-plated, has greatly reduced Na ₂CO ₃Generation, do not influence plating bath work-ing life, quality of coating is not had influence, and produces and go up the continuous electroplating area and reach 2,200,000,000 dm ²Still can continue to produce, guarantee safety in production simultaneously again.

Description of drawings

Fig. 1 forces the plating bath flow at high speed for this utility model and drives the structural representation of hydrogen production device.

Embodiment

Embodiment 1: this pressure plating bath flow at high speed is driven hydrogen production device, form by recycle pump 1, spray piping 2, eyelet 3, nozzle 4, recycle pump 1 two ends are connected with spray piping 2, one end spray piping inserts in the circulation groove 5, the other end spray piping enters plating tank 6, and spray piping 2 all is positioned at below, cell body inside, is no more than the plating bath face, enter cloth perforation 3 on the spray piping 2 of plating tank 6, nozzle 4 is installed on the eyelet 3.Eyelet 3 diameters are 5mm.

Spray piping 2 in plating tank 6 under plating tank 6 liquid levels, is close to the position, cathodic area during installation below plating tank 6 inside, liquid level is not exposed at nozzle 4 positions of spray piping 2, make the plating bath of injection be no more than liquid level, as surpassing liquid level, the NaOH in the alkali plating solution runs into airborne CO ₂Can produce Na again ₂CO ₃

Recycle pump 1 is squeezed into plating baths in the circulation groove 5 among the plating tank 6 continuously during production.Plating tank 6 and circulation groove 5 all communicate on existing production line, so the plating bath in the plating tank 6 can overflow in the circulation groove 5 circulated sprinkling constantly again continuously.Under the situation of forcing plating bath to circulate at a high speed, constantly high speed round-robin plating bath is ejected into the cathodic area by spray piping 2 eyelets 3, to drive the bubble hydrogen at negative electrode position.

Embodiment 2: eyelet 3 diameters are 10mm on the spray piping 2, and other and embodiment 1 omit together herein.

Embodiment 3: eyelet 3 diameters are 8mm on the spray piping 2, and other and embodiment 1 omit together herein.

Claims

1, a kind of pressure plating bath flow at high speed is driven hydrogen production device, it is characterized in that: this drives hydrogen production device and is made up of recycle pump, spray piping, eyelet, nozzle, the recycle pump two ends are connected with spray piping, one end spray piping inserts in the circulation groove, the other end spray piping enters plating tank, spray piping all is positioned at cell body inside below, enters cloth perforation on the spray piping of plating tank, and nozzle is installed on the eyelet.

2, pressure plating bath flow at high speed as claimed in claim 1 is driven hydrogen production device, it is characterized in that: described eye diameter is 5-10mm.