CN109795002A - A kind of furniture green black colour surface treatment method - Google Patents

Abstract

The present invention relates to a kind of office furniture green black colour surface treatment methods, by after Q235 plate is zinc-plated, the process flows such as light, passivation, closing, dipping lacquer, drying out, the corrosion resistance of office furniture can be significantly improved, color saturation is also very high, good decorative effect is reached, asepsis environment-protecting meets the new demand of environment-friendly and green household.

Description

A kind of furniture green black colour surface treatment method

Technical field

It is applied to office furniture green black colour surface treatment method the present invention relates to one kind more particularly to a kind of office furniture plates Zine plate trailing.

Background technique

With the development of the social economy, the industries such as automobile, household electrical appliances constantly increase, it is more and more using the steel of plating, I It is then galvanized steel that state, which consumes most fast, also can be largely from these galvanized sheet steel of external import, so galvanized sheet market prospects It is wide.

A large amount of zinc coated sheet materials are for automobile manufacture, refrigerating box, construction industry, ventilation and heating facility and Furniture manufacture etc. Field.It is zinc-plated to become important steel anti-corrosive method, not just merely because zinc can form fine and close protective layer, zinc in steel surface Also there is cathodic protection effect, zinc-plated damage layer, it remains to the corrosion that irony base material is prevented by cathodic protection effect.

Low and middle-grade furniture are various in style on China's furniture market, the situation that supply exceed demand occur.The energy of domestic production furniture Power is insufficient, and from manufacturing process, the supply of technical level and raw and auxiliary material cannot all fully meet the environmental protection condition of production furniture. The passivation technology mainly used after Q235 plate is zinc-plated in the market is the passivation of sexavalence chromic salts and chromic salt passivation, Cr6+ toxicity Very big, plating solution environmental pollution is serious, has prohibited Cr VI passivating solution both at home and abroad.Mostly use trivalent greatly currently on the market Chromium is zinc-plated, though trivalent chromium is not stopped using, and it is oxidizable at Cr VI in the natural environment, there is certain pollution to environment. It is polluted to eliminate chromium to environment bring, has selected the congeners molybdenum of chromium that chromium is replaced to be passivated post-processing.Body of the present invention Passivator and electrophoretic paint that system is made of sodium molybdate, sodium citrate, sodium sulfite, succinic acid, nickel acetate etc. etc..Passivation technology is green Colour circle is protected, and film layer Surface flat well has corrosion proof effect, is met common handware plating and is required, the plating applied to household The effect of zine plate green black colour, Film color is vivid, and corrosion resistance and appearance all improve a lot.So in galvanized sheet office man It is with a wide range of applications in terms of tool, architectural decoration and interior decoration.

Summary of the invention

The present invention makes the zinc-plated rear decorative effect of office furniture Q235 plate and has invented one kind to reach asepsis environment-protecting Furniture green black colour surface treatment method.

The present invention makes galvanized layer thickness in 10um or more using Q235 material as matrix bright galvanization, at room temperature with 3% nitric acid Light 4s out.

Present invention sodium molybdate, sodium citrate, sodium sulfite, succinic acid, nickel acetate, pure water form passivator, are in military green The liquid of color.Including sodium molybdate 15g/L, sodium citrate 12g/L, succinic acid 10g/L, sodium sulfite 8g/L, nickel acetate 15g/L；Remaining is pure water, and pH control is 2.3 when passivator uses.

The present invention by Q235 plate it is zinc-plated after in passivating solution be passivated after, present green black colour, make it have high anti-corrosive properties, preapre for an unfavorable turn of events Color and extremely strong adhesive force, while 3 minutes electrophoresis are carried out in crylic acid resin electrophoretic paint, control solid content exists 10%-15%, hydrotropy agent content is in 2%-5%, and at 20 to 25 degrees Celsius, pH control exists tank liquor temperature in 4.5-5.1, voltage control 20-100V, electrophoresis are dried 5 minutes under 60 DEG C of environment after proposing.

The description of test present invention observes coating by after zinc-plated, carrying out Passivation Treatment in different time periods in passivating solution Color and color saturation difference, the Surface flat of film layer is observed under atomic force microscope, carries out neutral salt spray test measurement Its corrosion resisting property.

Specific embodiment

Specific preparation process is as follows for the present embodiment:

A. using Q235 material as matrix bright galvanization, make galvanized layer thickness in 10um or more, go out light 4s with nitric acid at room temperature；

B. Zincing passivation agent is prepared into using sodium molybdate, sodium citrate, succinic acid, sodium sulfite, nickel acetate；

C. galvanized sheet is passivated in passivating solution 15s, deep green black colour is presented；

D. the galvanized sheet after passivation is immersed into rapidly sealer, is impregnated 5 seconds under conditions of pH is 6.5, carries out pure water rapidly It washes；

E. galvanized sheet is carried out electrophoretic process three minutes；

F. it is dried 5 minutes at 60 DEG C after being proposed in electrophoresis tank.

A kind of office furniture green black colour surface treatment method specification are as follows: sodium molybdate, sodium citrate, succinic acid, sodium sulfite, Nickel acetate, water, crylic acid resin electrophoretic paint.

Sodium molybdate 15g/L

Sodium citrate 12g/L

Succinic acid 10g/L

Sodium sulfite 8g/L

Nickel acetate 15g/L

pH2.3

Crylic acid resin electrophoretic paint

60 DEG C of drying temperature

Passivation time 15s

Note: when there is stirring, passivation time can shorten.

Claims (2)

1. be applied to zinc coating a kind of furniture green black colour surface treatment method steps are as follows:

A. using Q235 material as matrix bright galvanization, make galvanized layer thickness in 10um or more, go out light 4s with nitric acid at room temperature;

B. Zincing passivation agent is prepared into using sodium molybdate, sodium citrate, succinic acid, sodium sulfite, nickel acetate;

C. galvanized sheet is passivated in passivating solution 15s, green black colour is presented;

D. the galvanized sheet after passivation is immersed into rapidly sealer, is impregnated 5 seconds under conditions of pH is 6.5, carries out pure water rapidly It washes；

E. galvanized sheet is carried out electrophoretic process three minutes；

F. it is dried 5 minutes at 60 DEG C after being proposed in electrophoresis tank.

2. a kind of furniture green black colour surface treatment method according to claims 1, the electrophoretic paint is acrylic acid Resinae electrophoretic paint, electrophoresis time are 3 minutes, control solid content in 10%-15%, hydrotropy agent content is in 2%-5%, tank liquor Temperature at 20 to 25 degrees Celsius, dry under 60 DEG C of environment after proposing in 4.5-5.1, voltage control in 20-100V, electrophoresis by pH control It is 5 minutes dry.