CN102154655B - Normal temperature spraying detergent for aluminum alloy and preparation method thereof - Google Patents

Abstract

The invention relates to a normal temperature spraying detergent for aluminum alloy and a preparation method thereof. The detergent comprises the following raw materials in percentage by weight: 1 to 5 percent of ethylene diamine tetraacetic acid, 0.5 to 1.5 percent of sodium metasilicate pentahydrate, 5 to 8 percent of sodium gluconate, 5 to 10 percent of heterogeneous alcohol ether, 2 to 7 percent of solubilizing agent, 3 to 8 percent of surfactant, and the balance of water. The detergent can be used at normal temperature, and does not need heating so as to save the energy; the detergent does not corrode the treated aluminum alloy parts, does not leave white spots on the surfaces of the parts, and can increase the brightness of the parts; and the detergent has long service life and low using concentration, is safe and environment-friendly, saves the working time, and improves the working efficiency.

Description

Aluminum Alloy Room Temperature spray Cleaning for High Capacity agent and preparation method thereof

Technical field

The present invention relates to matting, antirust field, especially a kind of Aluminum Alloy Room Temperature spray Cleaning for High Capacity agent and preparation method thereof.

Background technology

Especially clean for Al alloy parts at cleaning industry; Clean the back part and have corrosion soon, especially adopt water base duraluminum clean-out system commonly used, the workpiece after the cleaning does not reach the cleaning quality standard-required; Not being that greasy dirt can't is washed off clearly, is exactly that workpiece is corroded; And most of workpiece are placed for some time and are just begun variable color after cleaning, had a strong impact on cleaning quality.

Through retrieval; The patent documentation relevant with present patent application has following two pieces; Be respectively: 1, a kind of aluminium and duraluminum clean-out system (CN101012411), by TX10 (5～25W%), AEO (5～25W%), cation-modified TX10 (1～10W%), the Ucar 35 butyl ether (2～10W%), glucose (2～8W%), Starso (1～8W%) and water (40～80W%) form.Product is a light yellow transparent liquid, and density (g/cm3) (proportion) is 1.05 ± 0.02.Adopt UW or pressure injection method to aluminium and duraluminum, carry out cleaning in 5～10 minutes at 50～70 ℃.High-detergency (more than 99%), anti-loss of gloss and discoloration-resisting; And realizing high-accuracy cleaning, cleaning and passivation are accomplished simultaneously, have simplified conventional treatment process; Clean cost and clean reduction by 40%～50% than halohydrocarbon; Simultaneously, avoided the harm of leaning solvent, realized innoxious environment-friendly type cleaning environment and operator.2, the present invention relates to a kind of water-soluble washing agent (CN101812695A) that is specifically designed to cleaning aluminum alloy, it is mainly formed and comprises: Hydrocerol A: 1～8%; Glucono-: 1～8%; Salt of wormwood: 3～12%; Sodium xylene sulfonate: 2～15%; Aluminium inhibiter: 3～12%; Water: surplus.This clean-out system has extremely strong infiltration, dispersion, solubilising, emulsifying effect, and grease, dirt are had good cleansing power, and its degreasing, decontamination washing ability are superpower; Product does not contain mineral ion, and is antistatic, is prone to rinsing, and noresidue or seldom residual can accomplish that low bubble cleans, and can improve working conditions, and prevents the pollution of the environment; And when cleaning, can protect effectively and be cleaned material surface and do not weather.

The content of above-mentioned two pieces of patent documentations record has the different of essence with present patent application.

Summary of the invention

The objective of the invention is to overcome the deficiency of existing technology; And a kind of safety, environmental protection, the saving energy, harmless Aluminum Alloy Room Temperature spray Cleaning for High Capacity agent and preparation method thereof are provided; Prepared clean-out system does not corrode Al alloy parts; And can increase the light of workpiece, the power of greasy dirt washing at normal temperatures reaches spray Cleaning for High Capacity agent quality standard.

Realize that technical scheme of the present invention is:

The agent of a kind of Aluminum Alloy Room Temperature spray Cleaning for High Capacity, it constitutes raw material and weight percentage ranges is respectively:

And said solubilizing agent is dipropylene glycol methyl ether.

And said tensio-active agent is an AEO.

The preparation method of a kind of Aluminum Alloy Room Temperature spray Cleaning for High Capacity agent, the step of preparation is following:

(1) will react water gaging and add in the reaction kettle, between 25-40 ℃, add metasilicate pentahydrate sodium, Sunmorl N 60S, EDTA Disodium, be stirred to whole dissolvings;

(2) solubilizing agent of adding reacting weight and tensio-active agent, isomery alcohol ether in reaction kettle continue to stir 30 minutes, and be as clear as crystal once more until solution, keeps 25-30 ℃ of temperature of reaction in the reaction process;

(3) reaction naturally cools to room temperature after accomplishing, and promptly becomes the agent of Aluminum Alloy Room Temperature spray Cleaning for High Capacity.

Advantage of the present invention and beneficial effect are:

1, the present invention is the weakly alkaline normal temperature washing agent, and raw materials used is that organic additive, inorganic assistant agent, dispersion agent, emulsifying agent and tensio-active agent are formed, and raw materials used wide material sources, obtains easily, and usage quantity is few, is applicable to large-scale explained hereafter.

2, the simple science of the mechanism of action of the present invention; Easy to use, economical and practical, effect is obvious; At first be the raw material of selecting for use after composite, also can keep very low foam; The various performances of composite back raw material all are enhanced and improve, and wherein: EDTA Disodium can provide stable pH value, and metasilicate pentahydrate sodium plays the effect of protection corrosive protection of aluminium alloy erosion; Sunmorl N 60S and isomery alcohol ether have the effect of the greasy dirt of dispersion and are not corroded with the protection metal; Solubilizing agent 130E and tensio-active agent 129B can work in coordination with the dissolving greasy dirt and reconcile other raw material of this prescription, increase the normal temperature cleaning force and reduce the normal temperature foam, make clean-out system reach optimal state through the above mechanism of action.

3, the present invention uses simple effects obvious, can be used for high-pressure spraying and uses, and usage quantity is low, not corroding metal.

4, normal temperature of the present invention just can use, and need not heat save energy, uses this liquid to handle the back aluminum alloy spare part is not corroded, and the no hickie in surface is residual and can increase the component light; Life cycle is long, and working concentration is low, safety; Man-hour is practiced thrift in environmental protection, increases work efficiency.

Embodiment

Below in conjunction with embodiment, the present invention is further specified; Following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.

Embodiment 1: the agent of a kind of Aluminum Alloy Room Temperature spray Cleaning for High Capacity, and it constitutes raw material and weight percent is respectively:

The preparation method of a kind of Aluminum Alloy Room Temperature spray Cleaning for High Capacity agent, step is following:

(1) will react water gaging and add in the reaction kettle, the metasilicate pentahydrate sodium, Sunmorl N 60S, the EDTA Disodium that between 25-40 ℃, add reacting weight stir, and keep reaction 20 minutes.

(2) in reaction kettle, add again and add solubilizing agent RQ-130E (dipropylene glycol methyl ether) again after isomery alcohol ether and surfactant R Q-129B (AEO) are stirred to fully dissolving; Continue to stir 30 minutes; As clear as crystal until solution, keep 35-40 ℃ of temperature of reaction kettle in the reaction process.

(3) naturally cool to room temperature after reaction is accomplished, leaving standstill promptly becomes Aluminum Alloy Room Temperature after 25-35 minute and sprays lotion clearly

Embodiment 2:

The agent of a kind of Aluminum Alloy Room Temperature spray Cleaning for High Capacity, it constitutes raw material and weight percent is respectively (is example with the 1000g water-based antirust):

Preparing method's step is same as embodiment 1.

Application example: the Aluminum Alloy Room Temperature that first liquid bath adds embodiment 1 or embodiment 2 by 5% concentration sprays the mixed solution of lotion and water clearly; The aluminum alloy part that need are cleaned is placed in the spray Cleaning for High Capacity equipment; Regulate spray pressure 0.3MPa, cleaning temperature is controlled at 25-30 ℃, adjustment spray Cleaning for High Capacity equipment flow line travelling speed; The beginning spray Cleaning for High Capacity was controlled at the effective spray time of metal parts 2-3 minute.Second groove used the clear water spray rinsing 1-3 minute.(when the special surface requirement is arranged, after spray Cleaning for High Capacity finishes, can increase the spray rinsing operation).Use hot blast drying then.

Conclusion: Aluminum Alloy Room Temperature sprays lotion clearly can eliminate the foam that produces because of spray automatically in cleaning process, the workpiece surface after the cleaning does not have greasy dirt, do not corrode the requirement of satisfying industrial spray Cleaning for High Capacity.

This Aluminum Alloy Room Temperature sprays the lotion quality standard clearly:

Outward appearance: colourless transparent liquid

Density: 1.058-1.072 (g/100ml)

PH： 3％10-11

Washing power 3% (30 ℃ of temperature): >=80%

Foaming properties 30 ℃≤15 (mm)

Working concentration: 2-5%

Spray or soak time: 2-5 minute

Use temperature: normal temperature-50 ℃

At first need to prove: the various components that the embodiment of the invention is used are the commercially available prod.Especially solubilizing agent and tensio-active agent are to adopt Shenzhen Rong Qiang Science and Technology Ltd. product.

The concentration of each material of the present invention is conventional working concentration.

Claims (2)

1. Aluminum Alloy Room Temperature spray Cleaning for High Capacity agent is characterized in that: it constitutes raw material and weight percentage ranges is respectively:

EDTA Disodium 1-5%

Metasilicate pentahydrate sodium: 0.5-1.5%

Sunmorl N 60S: 5-8%

Isomery alcohol ether: 5-10%

Dipropylene glycol methyl ether: 2-7%

AEO: 3-8%

Surplus is a water.

2. the preparation method of an Aluminum Alloy Room Temperature spray Cleaning for High Capacity as claimed in claim 1 agent, it is characterized in that: the step of preparation is following:

(1) will react water gaging and add in the reaction kettle, between 25-40 ℃, add metasilicate pentahydrate sodium, Sunmorl N 60S, EDTA Disodium, be stirred to whole dissolvings;

(2) dipropylene glycol methyl ether of adding reacting weight and AEO, isomery alcohol ether in reaction kettle continue to stir 30 minutes, and be as clear as crystal once more until solution, keeps 25-30 ℃ of temperature of reaction in the reaction process;

(3) reaction naturally cools to room temperature after accomplishing, and promptly becomes the agent of Aluminum Alloy Room Temperature spray Cleaning for High Capacity.