CN104005039B - A kind of aluminum alloy mould cleaning agent and preparation method thereof - Google Patents

Abstract

An aluminum alloy mold cleaner and a preparation method thereof according to the present invention, the cleaner is composed of the following components according to mass percentage: 6-12% sodium dodecylsulfobenzenesulfonate, 5-15% surfactant , 40-50% sodium hydroxide, 10-20% anhydrous sodium carbonate, 8-15% sodium citrate, 5-8% sodium silicate, 1-2% defoamer, obtained through scientific preparation methods Aluminum alloy mold cleaner has strong cleaning ability for the oil film pollution easily caused on aluminum alloy. The cleaning power of the oil film is 98%. The aluminum alloy mold has no corrosion, which can improve product quality and mold service life.

Description

A kind of aluminum alloy mold cleaning agent and preparation method thereof

technical field

The invention belongs to the field of cleaning agent manufacturing, and in particular relates to an aluminum alloy mold cleaning agent and a preparation method thereof.

Background technique

In the mold processing enterprises in the household appliances and automobile industries, the most economical and affordable materials are aluminum alloys and aluminum materials. Aluminum alloys have good heat transfer and light weight, and are excellent base materials for processing molds. Increased demand for molds. For my country, the automobile industry is still in the stage of continuous development and growth. Driven by the above trends, the advantages of the development and growth of my country's mold industry are very obvious. However, during the use of aluminum alloy molds, there are often oil, miscellaneous Pollution caused by pollutants, especially oil stains on the aluminum alloy surface is easy to form an oil film attached to the surface to form a colored film, which will cause irreversible erosion on the aluminum alloy surface after a long time, seriously affecting product quality and mold service life.

Contents of the invention

In order to solve the above problems, the invention discloses an aluminum alloy mold cleaner and a preparation method thereof, which has a detergency of 98% of oil film, no corrosion to aluminum alloy molds, economical price, environmental protection and non-toxicity.

To achieve the above object, the technical scheme of the present invention is as follows:

An aluminum alloy mold cleaner, characterized in that: the cleaner is composed of the following components according to mass percentage: 6-12% sodium dodecylsulfobenzenesulfonate, 5-15% surfactant, 40% sodium hydroxide -50%, anhydrous sodium carbonate 10-20%, sodium citrate 8-15%, sodium silicate 5-8%, defoamer 1-2%.

As an improvement of the present invention, the surfactant is prepared by chemical reaction of the following components in mass percentage: diethanolamine 60-80%; 4-chloromethylpyridine hydrochloride 20-40%.

As an improvement of the present invention, the preparation method of the surfactant is: after mixing the diethanolamine and 4-chloromethylpyridine hydrochloride of the above-mentioned components, heating to 60-80°C under stirring, and then stirring Keep warm for 2 hours.

As an improvement of the present invention, the defoamer is a polyether modified silicone defoamer.

A preparation method of an aluminum alloy mold cleaner, characterized in that: comprising the following steps:

(1) Making surfactants;

(2) Add the prepared surfactant into the reaction kettle, then add sodium dodecylsulfobenzenesulfonate, sodium hydroxide, anhydrous sodium carbonate, sodium citrate, sodium silicate, close the pressure kettle at 110Kpa pressure, Stir at room temperature for 0.5-2 hours;

(3) Add defoamer and stir at room temperature and pressure for 10-20 minutes;

(4) Put the mixture in an evaporator, and rotatively distill for 3-6 hours, extract the supernatant, put it into a filter centrifuge and centrifuge at 1200 rpm to obtain a cleaning agent.

The beneficial effects of the present invention are:

The aluminum alloy mold cleaner and preparation method described in the present invention have strong cleaning ability for the oil film pollution easily caused on the aluminum alloy, the cleaning power of the oil film is 98%, the price is economical, and all indicators meet the requirements of the national standard. Environmental protection requirements, no harm to human skin, no corrosion to aluminum alloy molds, can improve product quality and mold service life.

detailed description

Example 1

A kind of aluminum alloy mold cleaning agent, described cleaning agent is made up of following components according to mass percentage: sodium dodecyl sulfobenzene sulfonate 9%, surfactant 12%, sodium hydroxide 48%, anhydrous sodium carbonate 12% , 12% sodium citrate, 6% sodium silicate, 1% defoamer.

The surfactant is prepared from the following components by mass percentage through chemical reaction: 75% diethanolamine; 25% 4-chloromethylpyridine hydrochloride. The preparation method of the surfactant is: combining diethanolamine and 4- After the chloromethylpyridine hydrochloride was mixed, it was heated to 75° C. under stirring, and then kept stirring for 2 hours.

The defoamer is a polyether modified silicone defoamer.

A preparation method of an aluminum alloy mold cleaner, comprising the following steps:

(1) Make surfactant according to the above method;

(2) Add the prepared surfactant into the reaction kettle, then add sodium dodecylsulfobenzenesulfonate, sodium hydroxide, anhydrous sodium carbonate, sodium citrate, sodium silicate, close the pressure kettle at 110Kpa pressure, Stir at room temperature for 1.5 hours;

(3) Add defoamer and stir for 10 minutes at room temperature and pressure;

(4) Put the mixture in an evaporator, rotatively distill for 5 hours, extract the supernatant, put it into a filter centrifuge and centrifuge at 1200 rpm to obtain a cleaning agent.

When using, the cleaning agent and water should be diluted at a ratio of 1:30. If the oil film is seriously polluted, it can be diluted at a ratio of 1:25. When used in winter, the diluted solution can be properly heated at 10-20°C for better results.

Using a kind of aluminum alloy mold cleaner described in this embodiment, the detergency to the oil film is 98%, the aluminum alloy mold has no corrosion, each index meets the national environmental protection requirements, and has no harm to human skin.

Example 2

A kind of aluminum alloy mold cleaning agent, described cleaning agent is made up of following components according to mass percentage: sodium dodecyl sulfobenzene sulfonate 10%, surfactant 12%, sodium hydroxide 44%, anhydrous sodium carbonate 14% , 10% sodium citrate, 8% sodium silicate, 2% defoamer.

The surfactant is prepared from the following components by mass percentage through chemical reaction: 80% diethanolamine; 20% 4-chloromethylpyridine hydrochloride. The preparation method of the surfactant is: combining diethanolamine and 4- After the chloromethylpyridine hydrochloride was mixed, it was heated to 70° C. under stirring, and then kept stirring for 2 hours.

The defoamer is a polyether modified silicone defoamer.

A preparation method of an aluminum alloy mold cleaner, comprising the following steps:

(1) Make surfactant according to the above method;

(2) Add the prepared surfactant into the reaction kettle, then add sodium dodecylsulfobenzenesulfonate, sodium hydroxide, anhydrous sodium carbonate, sodium citrate, sodium silicate, close the pressure kettle at 110Kpa pressure, Stir at room temperature for 1 hour;

(3) Add defoamer and stir for 15 minutes at room temperature and pressure;

(4) Put the mixture in an evaporator, and rotatively distill for 6 hours, extract the supernatant, put it into a filter centrifuge and centrifuge at 1200 rpm to obtain a cleaning agent.

When using, the cleaning agent and water should be diluted at a ratio of 1:30. If the oil film is seriously polluted, it can be diluted at a ratio of 1:25. When used in winter, the diluted solution can be properly heated at 10-20°C for better results.

Using the aluminum alloy mold cleaner described in this embodiment, the detergency of the oil film is 97%, the aluminum alloy mold has no corrosion, all indicators meet the national environmental protection requirements, and there is no harm to human skin.

The technical means disclosed in the solutions of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims (2)

1. An aluminum alloy mold cleaning agent, characterized in that: said cleaning agent is made up of the following components according to mass percentage: sodium dodecylsulfobenzenesulfonate 6-12%, surfactant 5-15%, hydroxide 40-50% sodium, 10-20% anhydrous sodium carbonate, 8-15% sodium citrate, 5-8% sodium silicate, 1-2% defoamer, the surfactant is the following mass percentage group It is prepared by chemical reaction: diethanolamine 60-80%; 4-chloromethylpyridine hydrochloride 20-40%. The preparation method of the surfactant is as follows: after mixing diethanolamine and 4-chloromethylpyridine hydrochloride, heating to 60-80 DEG C under stirring, and then stirring and keeping warm for 2 hours. 2. A kind of aluminum alloy mold cleaning agent according to claim 1, characterized in that: the defoamer is a polyether modified silicone defoamer.