CN104722957B - A kind of environment-friendly spray coating type splash-proof welding agent and preparation method thereof - Google Patents

Abstract

The invention discloses an environment-friendly spraying type welding anti-splash agent and a preparation method thereof, belonging to the technical field of metal welding anti-splash chemical additives. The key points of the technical scheme of the present invention are: an environmentally friendly spraying type welding anti-splash agent, which is prepared from the following raw materials in proportion by weight: film-forming agent C5 petroleum resin or C9 petroleum resin 5-30%, stripping Agent chlorinated polyethylene resin 5-30%, dispersant fumed silica 5-20%, solvent dearomatization solvent oil D4050-70% and co-solvent cyclohexanol 1-15%. The invention also discloses a preparation method of the environment-friendly spraying welding anti-splash agent. The raw materials used in the environment-friendly spraying type welding anti-spatter agent prepared by the invention have low cost and good uniformity, so it can be sprayed with a spray gun during use, saving time and effort.

Description

A kind of environmental protection spray type welding anti-splash agent and preparation method thereof

technical field

The invention belongs to the technical field of anti-splash chemical additives for metal welding, and specifically relates to an environmentally friendly spray-type welding anti-splash agent and a preparation method thereof.

Background technique

The metal welding process is a very widely used metal processing process in modern industry, including marine ships, aerospace, railway transportation, petrochemical industry, hardware construction and other industries. When welding, it is necessary to connect the welding material and the metal base material into a whole under high temperature and high pressure conditions. During the welding process, due to the addition of external gas in the mixture, the high current generates arc light and high temperature, and when the temperature rises sharply, a lot of spatter will be generated. These spatters are easy to fall on the metal surface near the weld and cool down. After that, it sticks to the surface of the metal base metal, which is the so-called welding slag. In actual work, in order to ensure the quality of welding, the welding slag must be processed. Usually, people remove the welding slag by grinding and removing it, but this will take a lot of time and increase the production cost.

At present, in order to solve this problem, relevant researchers have invented some anti-splash agents for metal welding. For example, the patent with the publication number of CN 102061110A discloses an anti-splash liquid for metal welding, but the raw materials contain calcium nitrate, etc., in actual operation During the process, the anti-splash liquid is brushed on the surface of the base material, which brings great inconvenience to the actual operation process, and the efficiency is low. The effect of use is poor.

Therefore, the spray type metal welding anti-spatter has great advantages. For example, the patent with the publication number CN 103612028A discloses a metal welding anti-splash agent, but the reagent contains polyether, triethanolamine and sodium nitrite, and the decomposition of triethanolamine will produce a strong pungent ammonia smell, which is difficult to obtain in the actual operation process. In addition, sodium nitrite is a strong carcinogen and harmful to human body, especially in some closed places (such as inside some large reactors), so a non-polluting and environmentally friendly spray welding anti The splash agent is particularly important.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides an environmentally friendly spray-coated welding anti-spatter agent and its preparation method. superficial technical problems.

The technical solution of the present invention is: an environmentally friendly spray-type welding anti-spatter agent, which is characterized in that it is prepared from the following raw materials in the proportion by weight:

Film-forming agent: C5 petroleum resin or C9 petroleum resin 5-30%

Stripping agent: Chlorinated polyethylene resin 5-30%

Dispersant: fumed silica 5-20%

Solvent: Dearomatized solvent oil D40 50-70%

Co-solvent: cyclohexanol 1-15%.

As preferably, described environment-friendly spray type welding anti-spatter agent is prepared from the raw material of following weight percent ratio:

Film-forming agent: C5 petroleum resin 10%

Release agent: Chlorinated polyethylene resin 10%

Dispersant: fumed silica 10%

Solvent: Dearomatized solvent oil D40 65%

Co-solvent: 5% cyclohexanol.

The preparation method of the environmental protection spraying type welding anti-splash agent according to the present invention is characterized in that the specific steps are: according to the following weight percentage ratio, take respectively 5-30% of raw material film-forming agent C5 petroleum resin or C9 petroleum resin, Stripping agent chlorinated polyethylene resin 5-30%, dispersant fumed silica 5-20%, solvent dearomatization solvent oil D40 50-70% and co-solvent cyclohexanol 1-15%, weigh the film-forming C5 petroleum resin or C9 petroleum resin and stripping agent chlorinated polyethylene resin are added to solvent dearomatization solvent oil D40, and after complete dissolution, add dispersant fumed silica and cosolvent cyclohexanol in sequence and adjust to the average Then the environment-friendly spray-type welding anti-spatter agent can be obtained.

As preferably, the specific steps of the preparation method of the environmental protection spraying type welding anti-spatter agent are: according to the following weight percentage proportions, respectively weigh 10% of the raw material film-forming agent C5 petroleum resin and 10% of the stripping agent chlorinated polyethylene resin. %, dispersant fumed silica 10%, solvent dearomatized solvent oil D40 65% and cosolvent cyclohexanol 5%, the film-forming agent C5 petroleum resin and stripping agent chlorinated polyethylene resin were added to solvent de-aromatization In the aromatic hydrocarbon solvent oil D40, after being completely dissolved, add the dispersant fumed silica and the cosolvent cyclohexanol in sequence and adjust to a homogeneous phase to obtain an environmentally friendly spray-type welding anti-spatter agent.

The raw materials used in the environmentally friendly spray-type welding anti-spatter agent prepared by the present invention are low in cost and have good uniformity, so it can be sprayed with a spray gun during use, saving time and effort, and brushing or spraying this product on the workpiece during use The welding operation can effectively prevent the workpiece from sticking to the welding slag. After welding, the welding slag can be easily removed by washing or cleaning.

detailed description

The above-mentioned contents of the present invention are described in further detail below through the embodiments, but this should not be interpreted as the scope of the above-mentioned themes of the present invention being limited to the following embodiments, and all technologies realized based on the above-mentioned contents of the present invention all belong to the scope of the present invention.

Example

Weigh the raw materials (kg) according to the following proportions:

1. Film-forming agent C5 petroleum resin 10, stripping agent chlorinated polyethylene resin 10, dispersant fumed silica 10, solvent dearomatization solvent oil D40 65 and co-solvent cyclohexanol 5;

2. Film-forming agent C9 petroleum resin 5, stripping agent chlorinated polyethylene resin 30, dispersant fumed silica 5, solvent dearomatization solvent oil D40 59 and co-solvent cyclohexanol 1;

3. Film-forming agent C5 petroleum resin 30, stripping agent chlorinated polyethylene resin 5, dispersant fumed silica 5, solvent dearomatization solvent oil D40 59 and co-solvent cyclohexanol 1;

4. Film forming agent C9 petroleum resin 5, stripping agent chlorinated polyethylene resin 5, dispersant fumed silica 20, solvent dearomatization solvent oil D40 55 and cosolvent cyclohexanol 15;

5. Film-forming agent C5 petroleum resin 15, stripping agent chlorinated polyethylene resin 15, dispersant fumed silica 10, solvent dearomatization solvent oil D40 50 and co-solvent cyclohexanol 10;

6. Film-forming agent C9 petroleum resin 5, stripping agent chlorinated polyethylene resin 5, dispersant fumed silica 5, solvent dearomatization solvent oil D40 70 and co-solvent cyclohexanol 15.

The preparation method is:

Add the film-forming agent C5 petroleum resin or C9 petroleum resin and the stripping agent chlorinated polyethylene resin weighed according to the above ratio into the solvent dearomatization solvent oil D40, and then add the dispersant gas phase white carbon black and The co-solvent cyclohexanol is adjusted to form a homogeneous phase to prepare an environmentally friendly spray-type welding anti-spatter agent.

The method of use is:

When in use, brush or spray the above-mentioned environmentally friendly spray-type welding anti-spatter agent on the surface of the workpiece, and then perform welding operation, which can effectively prevent the workpiece from sticking to the welding slag. After welding, the welding slag can be washed or cleaned easily. remove.

The above embodiments are only to illustrate the technical ideas of the present invention, and can not limit the protection scope of the present invention with this. All technical ideas proposed in accordance with the present invention, any changes made on the basis of technical solutions, all fall within the protection scope of the present invention. Inside.

Claims (3)

1. An environment-friendly spraying type welding anti-splash agent is characterized in that it is prepared from the following raw materials in proportion by weight: Film-forming agent: C5 petroleum resin 10% Release agent: Chlorinated polyethylene resin 10% Dispersant: fumed silica 10% Solvent: Dearomatized solvent oil D40 65% Co-solvent: 5% cyclohexanol. 2. A preparation method of an environmental protection spraying type welding anti-splash agent, is characterized in that concrete steps are: take by weighing raw material film-forming agent C5 petroleum resin or C9 petroleum resin 5-30% respectively according to following weight percentage distribution ratio, peel off Agent chlorinated polyethylene resin 5-30%, dispersant fumed silica 5-20%, solvent dearomatization solvent oil D40 50-70% and co-solvent cyclohexanol 1-15%, the film-forming agent C5 petroleum resin or C9 petroleum resin and stripping agent chlorinated polyethylene resin are added to solvent dearomatization solvent oil D40, and after being completely dissolved, add dispersant fumed silica and cosolvent cyclohexanol in sequence and adjust to form a homogeneous phase. An environmentally friendly spray-type welding anti-splash agent is prepared. 3. the preparation method of environmental protection spraying type welding anti-splash agent according to claim 2, it is characterized in that concrete steps are: take by weighing respectively raw material film-forming agent C5 petroleum resin 10%, stripping agent chlorine according to following weight percentage distribution ratio Polyethylene resin 10%, dispersant fumed silica 10%, solvent dearomatization solvent oil D40 65% and cosolvent cyclohexanol 5%, the film-forming agent C5 petroleum resin and stripping agent chlorinated poly Vinyl resin is added to the solvent dearomatization solvent oil D40, and after being completely dissolved, the dispersant fumed silica and the cosolvent cyclohexanol are added in sequence and adjusted to form a homogeneous phase to obtain an environmentally friendly sprayable welding anti-spatter agent.